forked from aniani/vim
be07caa071
Problem: patch 9.0.1771 causes problems Solution: revert it Revert "patch 9.0.1771: regex: combining chars in collections not handled" This reverts commit ca22fc36a4e8a315f199893ee8ff6253573f5fbe. Signed-off-by: Christian Brabandt <cb@256bit.org>
5599 lines
140 KiB
C
5599 lines
140 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* Backtracking regular expression implementation.
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*
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* This file is included in "regexp.c".
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*
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* NOTICE:
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*
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* This is NOT the original regular expression code as written by Henry
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* Spencer. This code has been modified specifically for use with the VIM
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* editor, and should not be used separately from Vim. If you want a good
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* regular expression library, get the original code. The copyright notice
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* that follows is from the original.
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*
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* END NOTICE
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*
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* Copyright (c) 1986 by University of Toronto.
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* Written by Henry Spencer. Not derived from licensed software.
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*
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* Permission is granted to anyone to use this software for any
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* purpose on any computer system, and to redistribute it freely,
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* subject to the following restrictions:
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*
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* 1. The author is not responsible for the consequences of use of
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* this software, no matter how awful, even if they arise
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* from defects in it.
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*
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* 2. The origin of this software must not be misrepresented, either
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* by explicit claim or by omission.
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*
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* 3. Altered versions must be plainly marked as such, and must not
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* be misrepresented as being the original software.
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*
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* Beware that some of this code is subtly aware of the way operator
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* precedence is structured in regular expressions. Serious changes in
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* regular-expression syntax might require a total rethink.
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*
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* Changes have been made by Tony Andrews, Olaf 'Rhialto' Seibert, Robert
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* Webb, Ciaran McCreesh and Bram Moolenaar.
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* Named character class support added by Walter Briscoe (1998 Jul 01)
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*/
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/*
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* The "internal use only" fields in regexp.h are present to pass info from
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* compile to execute that permits the execute phase to run lots faster on
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* simple cases. They are:
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*
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* regstart char that must begin a match; NUL if none obvious; Can be a
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* multi-byte character.
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* reganch is the match anchored (at beginning-of-line only)?
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* regmust string (pointer into program) that match must include, or NULL
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* regmlen length of regmust string
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* regflags RF_ values or'ed together
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*
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* Regstart and reganch permit very fast decisions on suitable starting points
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* for a match, cutting down the work a lot. Regmust permits fast rejection
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* of lines that cannot possibly match. The regmust tests are costly enough
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* that vim_regcomp() supplies a regmust only if the r.e. contains something
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* potentially expensive (at present, the only such thing detected is * or +
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* at the start of the r.e., which can involve a lot of backup). Regmlen is
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* supplied because the test in vim_regexec() needs it and vim_regcomp() is
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* computing it anyway.
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*/
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/*
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* Structure for regexp "program". This is essentially a linear encoding
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* of a nondeterministic finite-state machine (aka syntax charts or
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* "railroad normal form" in parsing technology). Each node is an opcode
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* plus a "next" pointer, possibly plus an operand. "Next" pointers of
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* all nodes except BRANCH and BRACES_COMPLEX implement concatenation; a "next"
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* pointer with a BRANCH on both ends of it is connecting two alternatives.
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* (Here we have one of the subtle syntax dependencies: an individual BRANCH
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* (as opposed to a collection of them) is never concatenated with anything
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* because of operator precedence). The "next" pointer of a BRACES_COMPLEX
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* node points to the node after the stuff to be repeated.
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* The operand of some types of node is a literal string; for others, it is a
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* node leading into a sub-FSM. In particular, the operand of a BRANCH node
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* is the first node of the branch.
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* (NB this is *not* a tree structure: the tail of the branch connects to the
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* thing following the set of BRANCHes.)
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*
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* pattern is coded like:
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*
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* +-----------------+
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* | V
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* <aa>\|<bb> BRANCH <aa> BRANCH <bb> --> END
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* | ^ | ^
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* +------+ +----------+
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*
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*
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* +------------------+
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* V |
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* <aa>* BRANCH BRANCH <aa> --> BACK BRANCH --> NOTHING --> END
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* | | ^ ^
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* | +---------------+ |
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* +---------------------------------------------+
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*
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*
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* +----------------------+
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* V |
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* <aa>\+ BRANCH <aa> --> BRANCH --> BACK BRANCH --> NOTHING --> END
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* | | ^ ^
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* | +-----------+ |
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* +--------------------------------------------------+
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*
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*
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* +-------------------------+
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* V |
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* <aa>\{} BRANCH BRACE_LIMITS --> BRACE_COMPLEX <aa> --> BACK END
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* | | ^
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* | +----------------+
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* +-----------------------------------------------+
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*
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*
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* <aa>\@!<bb> BRANCH NOMATCH <aa> --> END <bb> --> END
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* | | ^ ^
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* | +----------------+ |
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* +--------------------------------+
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*
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* +---------+
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* | V
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* \z[abc] BRANCH BRANCH a BRANCH b BRANCH c BRANCH NOTHING --> END
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* | | | | ^ ^
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* | | | +-----+ |
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* | | +----------------+ |
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* | +---------------------------+ |
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* +------------------------------------------------------+
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*
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* They all start with a BRANCH for "\|" alternatives, even when there is only
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* one alternative.
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*/
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/*
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* The opcodes are:
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*/
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// definition number opnd? meaning
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#define END 0 // End of program or NOMATCH operand.
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#define BOL 1 // Match "" at beginning of line.
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#define EOL 2 // Match "" at end of line.
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#define BRANCH 3 // node Match this alternative, or the
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// next...
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#define BACK 4 // Match "", "next" ptr points backward.
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#define EXACTLY 5 // str Match this string.
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#define NOTHING 6 // Match empty string.
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#define STAR 7 // node Match this (simple) thing 0 or more
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// times.
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#define PLUS 8 // node Match this (simple) thing 1 or more
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// times.
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#define MATCH 9 // node match the operand zero-width
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#define NOMATCH 10 // node check for no match with operand
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#define BEHIND 11 // node look behind for a match with operand
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#define NOBEHIND 12 // node look behind for no match with operand
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#define SUBPAT 13 // node match the operand here
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#define BRACE_SIMPLE 14 // node Match this (simple) thing between m and
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// n times (\{m,n\}).
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#define BOW 15 // Match "" after [^a-zA-Z0-9_]
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#define EOW 16 // Match "" at [^a-zA-Z0-9_]
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#define BRACE_LIMITS 17 // nr nr define the min & max for BRACE_SIMPLE
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// and BRACE_COMPLEX.
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#define NEWL 18 // Match line-break
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#define BHPOS 19 // End position for BEHIND or NOBEHIND
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// character classes: 20-48 normal, 50-78 include a line-break
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#define ADD_NL 30
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#define FIRST_NL ANY + ADD_NL
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#define ANY 20 // Match any one character.
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#define ANYOF 21 // str Match any character in this string.
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#define ANYBUT 22 // str Match any character not in this
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// string.
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#define IDENT 23 // Match identifier char
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#define SIDENT 24 // Match identifier char but no digit
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#define KWORD 25 // Match keyword char
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#define SKWORD 26 // Match word char but no digit
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#define FNAME 27 // Match file name char
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#define SFNAME 28 // Match file name char but no digit
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#define PRINT 29 // Match printable char
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#define SPRINT 30 // Match printable char but no digit
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#define WHITE 31 // Match whitespace char
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#define NWHITE 32 // Match non-whitespace char
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#define DIGIT 33 // Match digit char
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#define NDIGIT 34 // Match non-digit char
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#define HEX 35 // Match hex char
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#define NHEX 36 // Match non-hex char
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#define OCTAL 37 // Match octal char
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#define NOCTAL 38 // Match non-octal char
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#define WORD 39 // Match word char
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#define NWORD 40 // Match non-word char
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#define HEAD 41 // Match head char
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#define NHEAD 42 // Match non-head char
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#define ALPHA 43 // Match alpha char
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#define NALPHA 44 // Match non-alpha char
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#define LOWER 45 // Match lowercase char
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#define NLOWER 46 // Match non-lowercase char
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#define UPPER 47 // Match uppercase char
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#define NUPPER 48 // Match non-uppercase char
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#define LAST_NL NUPPER + ADD_NL
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#define WITH_NL(op) ((op) >= FIRST_NL && (op) <= LAST_NL)
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#define MOPEN 80 // -89 Mark this point in input as start of
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// \( subexpr. MOPEN + 0 marks start of
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// match.
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#define MCLOSE 90 // -99 Analogous to MOPEN. MCLOSE + 0 marks
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// end of match.
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#define BACKREF 100 // -109 node Match same string again \1-\9
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#ifdef FEAT_SYN_HL
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# define ZOPEN 110 // -119 Mark this point in input as start of
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// \z( subexpr.
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# define ZCLOSE 120 // -129 Analogous to ZOPEN.
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# define ZREF 130 // -139 node Match external submatch \z1-\z9
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#endif
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#define BRACE_COMPLEX 140 // -149 node Match nodes between m & n times
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#define NOPEN 150 // Mark this point in input as start of
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// \%( subexpr.
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#define NCLOSE 151 // Analogous to NOPEN.
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#define MULTIBYTECODE 200 // mbc Match one multi-byte character
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#define RE_BOF 201 // Match "" at beginning of file.
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#define RE_EOF 202 // Match "" at end of file.
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#define CURSOR 203 // Match location of cursor.
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#define RE_LNUM 204 // nr cmp Match line number
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#define RE_COL 205 // nr cmp Match column number
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#define RE_VCOL 206 // nr cmp Match virtual column number
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#define RE_MARK 207 // mark cmp Match mark position
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#define RE_VISUAL 208 // Match Visual area
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#define RE_COMPOSING 209 // any composing characters
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/*
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* Flags to be passed up and down.
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*/
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#define HASWIDTH 0x1 // Known never to match null string.
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#define SIMPLE 0x2 // Simple enough to be STAR/PLUS operand.
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#define SPSTART 0x4 // Starts with * or +.
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#define HASNL 0x8 // Contains some \n.
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#define HASLOOKBH 0x10 // Contains "\@<=" or "\@<!".
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#define WORST 0 // Worst case.
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static int num_complex_braces; // Complex \{...} count
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static char_u *regcode; // Code-emit pointer, or JUST_CALC_SIZE
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static long regsize; // Code size.
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static int reg_toolong; // TRUE when offset out of range
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static char_u had_endbrace[NSUBEXP]; // flags, TRUE if end of () found
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static long brace_min[10]; // Minimums for complex brace repeats
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static long brace_max[10]; // Maximums for complex brace repeats
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static int brace_count[10]; // Current counts for complex brace repeats
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static int one_exactly = FALSE; // only do one char for EXACTLY
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// When making changes to classchars also change nfa_classcodes.
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static char_u *classchars = (char_u *)".iIkKfFpPsSdDxXoOwWhHaAlLuU";
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static int classcodes[] = {
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ANY, IDENT, SIDENT, KWORD, SKWORD,
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FNAME, SFNAME, PRINT, SPRINT,
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WHITE, NWHITE, DIGIT, NDIGIT,
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HEX, NHEX, OCTAL, NOCTAL,
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WORD, NWORD, HEAD, NHEAD,
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ALPHA, NALPHA, LOWER, NLOWER,
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UPPER, NUPPER
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};
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/*
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* When regcode is set to this value, code is not emitted and size is computed
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* instead.
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*/
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#define JUST_CALC_SIZE ((char_u *) -1)
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// Values for rs_state in regitem_T.
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typedef enum regstate_E
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{
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RS_NOPEN = 0 // NOPEN and NCLOSE
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, RS_MOPEN // MOPEN + [0-9]
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, RS_MCLOSE // MCLOSE + [0-9]
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#ifdef FEAT_SYN_HL
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, RS_ZOPEN // ZOPEN + [0-9]
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, RS_ZCLOSE // ZCLOSE + [0-9]
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#endif
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, RS_BRANCH // BRANCH
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, RS_BRCPLX_MORE // BRACE_COMPLEX and trying one more match
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, RS_BRCPLX_LONG // BRACE_COMPLEX and trying longest match
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, RS_BRCPLX_SHORT // BRACE_COMPLEX and trying shortest match
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, RS_NOMATCH // NOMATCH
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, RS_BEHIND1 // BEHIND / NOBEHIND matching rest
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, RS_BEHIND2 // BEHIND / NOBEHIND matching behind part
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, RS_STAR_LONG // STAR/PLUS/BRACE_SIMPLE longest match
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, RS_STAR_SHORT // STAR/PLUS/BRACE_SIMPLE shortest match
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} regstate_T;
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/*
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* Structure used to save the current input state, when it needs to be
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* restored after trying a match. Used by reg_save() and reg_restore().
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* Also stores the length of "backpos".
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*/
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typedef struct
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{
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union
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{
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char_u *ptr; // rex.input pointer, for single-line regexp
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lpos_T pos; // rex.input pos, for multi-line regexp
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} rs_u;
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int rs_len;
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} regsave_T;
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// struct to save start/end pointer/position in for \(\)
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typedef struct
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{
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union
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{
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char_u *ptr;
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lpos_T pos;
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} se_u;
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} save_se_T;
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// used for BEHIND and NOBEHIND matching
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typedef struct regbehind_S
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{
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regsave_T save_after;
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regsave_T save_behind;
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int save_need_clear_subexpr;
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save_se_T save_start[NSUBEXP];
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save_se_T save_end[NSUBEXP];
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} regbehind_T;
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/*
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* When there are alternatives a regstate_T is put on the regstack to remember
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* what we are doing.
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* Before it may be another type of item, depending on rs_state, to remember
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* more things.
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*/
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typedef struct regitem_S
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{
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regstate_T rs_state; // what we are doing, one of RS_ above
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short rs_no; // submatch nr or BEHIND/NOBEHIND
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char_u *rs_scan; // current node in program
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union
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{
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save_se_T sesave;
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regsave_T regsave;
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} rs_un; // room for saving rex.input
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} regitem_T;
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// used for STAR, PLUS and BRACE_SIMPLE matching
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typedef struct regstar_S
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{
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int nextb; // next byte
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int nextb_ic; // next byte reverse case
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long count;
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long minval;
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long maxval;
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} regstar_T;
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// used to store input position when a BACK was encountered, so that we now if
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// we made any progress since the last time.
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typedef struct backpos_S
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{
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char_u *bp_scan; // "scan" where BACK was encountered
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regsave_T bp_pos; // last input position
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} backpos_T;
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/*
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* "regstack" and "backpos" are used by regmatch(). They are kept over calls
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* to avoid invoking malloc() and free() often.
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* "regstack" is a stack with regitem_T items, sometimes preceded by regstar_T
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* or regbehind_T.
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* "backpos_T" is a table with backpos_T for BACK
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*/
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static garray_T regstack = {0, 0, 0, 0, NULL};
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static garray_T backpos = {0, 0, 0, 0, NULL};
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static regsave_T behind_pos;
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/*
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* Both for regstack and backpos tables we use the following strategy of
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* allocation (to reduce malloc/free calls):
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* - Initial size is fairly small.
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* - When needed, the tables are grown bigger (8 times at first, double after
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* that).
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* - After executing the match we free the memory only if the array has grown.
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* Thus the memory is kept allocated when it's at the initial size.
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* This makes it fast while not keeping a lot of memory allocated.
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* A three times speed increase was observed when using many simple patterns.
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*/
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#define REGSTACK_INITIAL 2048
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#define BACKPOS_INITIAL 64
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/*
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* Opcode notes:
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*
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* BRANCH The set of branches constituting a single choice are hooked
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* together with their "next" pointers, since precedence prevents
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* anything being concatenated to any individual branch. The
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* "next" pointer of the last BRANCH in a choice points to the
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* thing following the whole choice. This is also where the
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* final "next" pointer of each individual branch points; each
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* branch starts with the operand node of a BRANCH node.
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*
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* BACK Normal "next" pointers all implicitly point forward; BACK
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* exists to make loop structures possible.
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*
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* STAR,PLUS '=', and complex '*' and '+', are implemented as circular
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* BRANCH structures using BACK. Simple cases (one character
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* per match) are implemented with STAR and PLUS for speed
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* and to minimize recursive plunges.
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*
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* BRACE_LIMITS This is always followed by a BRACE_SIMPLE or BRACE_COMPLEX
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* node, and defines the min and max limits to be used for that
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* node.
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*
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* MOPEN,MCLOSE ...are numbered at compile time.
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* ZOPEN,ZCLOSE ...ditto
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*/
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/*
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* A node is one char of opcode followed by two chars of "next" pointer.
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* "Next" pointers are stored as two 8-bit bytes, high order first. The
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* value is a positive offset from the opcode of the node containing it.
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* An operand, if any, simply follows the node. (Note that much of the
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* code generation knows about this implicit relationship.)
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*
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* Using two bytes for the "next" pointer is vast overkill for most things,
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* but allows patterns to get big without disasters.
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*/
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#define OP(p) ((int)*(p))
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#define NEXT(p) (((*((p) + 1) & 0377) << 8) + (*((p) + 2) & 0377))
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#define OPERAND(p) ((p) + 3)
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// Obtain an operand that was stored as four bytes, MSB first.
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#define OPERAND_MIN(p) (((long)(p)[3] << 24) + ((long)(p)[4] << 16) \
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+ ((long)(p)[5] << 8) + (long)(p)[6])
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// Obtain a second operand stored as four bytes.
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#define OPERAND_MAX(p) OPERAND_MIN((p) + 4)
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// Obtain a second single-byte operand stored after a four bytes operand.
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#define OPERAND_CMP(p) (p)[7]
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static char_u *reg(int paren, int *flagp);
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#ifdef BT_REGEXP_DUMP
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static void regdump(char_u *, bt_regprog_T *);
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#endif
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static int re_num_cmp(long_u val, char_u *scan);
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#ifdef DEBUG
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static char_u *regprop(char_u *);
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static int regnarrate = 0;
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#endif
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/*
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* Setup to parse the regexp. Used once to get the length and once to do it.
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*/
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static void
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regcomp_start(
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char_u *expr,
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int re_flags) // see vim_regcomp()
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{
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initchr(expr);
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|
if (re_flags & RE_MAGIC)
|
|
reg_magic = MAGIC_ON;
|
|
else
|
|
reg_magic = MAGIC_OFF;
|
|
reg_string = (re_flags & RE_STRING);
|
|
reg_strict = (re_flags & RE_STRICT);
|
|
get_cpo_flags();
|
|
|
|
num_complex_braces = 0;
|
|
regnpar = 1;
|
|
CLEAR_FIELD(had_endbrace);
|
|
#ifdef FEAT_SYN_HL
|
|
regnzpar = 1;
|
|
re_has_z = 0;
|
|
#endif
|
|
regsize = 0L;
|
|
reg_toolong = FALSE;
|
|
regflags = 0;
|
|
#if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
had_eol = FALSE;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if MULTIBYTECODE should be used instead of EXACTLY for
|
|
* character "c".
|
|
*/
|
|
static int
|
|
use_multibytecode(int c)
|
|
{
|
|
return has_mbyte && (*mb_char2len)(c) > 1
|
|
&& (re_multi_type(peekchr()) != NOT_MULTI
|
|
|| (enc_utf8 && utf_iscomposing(c)));
|
|
}
|
|
|
|
/*
|
|
* Emit (if appropriate) a byte of code
|
|
*/
|
|
static void
|
|
regc(int b)
|
|
{
|
|
if (regcode == JUST_CALC_SIZE)
|
|
regsize++;
|
|
else
|
|
*regcode++ = b;
|
|
}
|
|
|
|
/*
|
|
* Emit (if appropriate) a multi-byte character of code
|
|
*/
|
|
static void
|
|
regmbc(int c)
|
|
{
|
|
if (!has_mbyte && c > 0xff)
|
|
return;
|
|
if (regcode == JUST_CALC_SIZE)
|
|
regsize += (*mb_char2len)(c);
|
|
else
|
|
regcode += (*mb_char2bytes)(c, regcode);
|
|
}
|
|
|
|
|
|
/*
|
|
* Produce the bytes for equivalence class "c".
|
|
* Currently only handles latin1, latin9 and utf-8.
|
|
* NOTE: When changing this function, also change nfa_emit_equi_class()
|
|
*/
|
|
static void
|
|
reg_equi_class(int c)
|
|
{
|
|
if (enc_utf8 || STRCMP(p_enc, "latin1") == 0
|
|
|| STRCMP(p_enc, "iso-8859-15") == 0)
|
|
{
|
|
switch (c)
|
|
{
|
|
// Do not use '\300' style, it results in a negative number.
|
|
case 'A': case 0xc0: case 0xc1: case 0xc2: case 0xc3: case 0xc4:
|
|
case 0xc5: case 0x100: case 0x102: case 0x104: case 0x1cd:
|
|
case 0x1de: case 0x1e0: case 0x1fa: case 0x202: case 0x226:
|
|
case 0x23a: case 0x1e00: case 0x1ea0: case 0x1ea2: case 0x1ea4:
|
|
case 0x1ea6: case 0x1ea8: case 0x1eaa: case 0x1eac: case 0x1eae:
|
|
case 0x1eb0: case 0x1eb2: case 0x1eb4: case 0x1eb6:
|
|
regmbc('A'); regmbc(0xc0); regmbc(0xc1); regmbc(0xc2);
|
|
regmbc(0xc3); regmbc(0xc4); regmbc(0xc5);
|
|
regmbc(0x100); regmbc(0x102); regmbc(0x104);
|
|
regmbc(0x1cd); regmbc(0x1de); regmbc(0x1e0);
|
|
regmbc(0x1fa); regmbc(0x202); regmbc(0x226);
|
|
regmbc(0x23a); regmbc(0x1e00); regmbc(0x1ea0);
|
|
regmbc(0x1ea2); regmbc(0x1ea4); regmbc(0x1ea6);
|
|
regmbc(0x1ea8); regmbc(0x1eaa); regmbc(0x1eac);
|
|
regmbc(0x1eae); regmbc(0x1eb0); regmbc(0x1eb2);
|
|
regmbc(0x1eb4); regmbc(0x1eb6);
|
|
return;
|
|
case 'B': case 0x181: case 0x243: case 0x1e02:
|
|
case 0x1e04: case 0x1e06:
|
|
regmbc('B');
|
|
regmbc(0x181); regmbc(0x243); regmbc(0x1e02);
|
|
regmbc(0x1e04); regmbc(0x1e06);
|
|
return;
|
|
case 'C': case 0xc7:
|
|
case 0x106: case 0x108: case 0x10a: case 0x10c: case 0x187:
|
|
case 0x23b: case 0x1e08: case 0xa792:
|
|
regmbc('C'); regmbc(0xc7);
|
|
regmbc(0x106); regmbc(0x108); regmbc(0x10a);
|
|
regmbc(0x10c); regmbc(0x187); regmbc(0x23b);
|
|
regmbc(0x1e08); regmbc(0xa792);
|
|
return;
|
|
case 'D': case 0x10e: case 0x110: case 0x18a:
|
|
case 0x1e0a: case 0x1e0c: case 0x1e0e: case 0x1e10:
|
|
case 0x1e12:
|
|
regmbc('D'); regmbc(0x10e); regmbc(0x110);
|
|
regmbc(0x18a); regmbc(0x1e0a); regmbc(0x1e0c);
|
|
regmbc(0x1e0e); regmbc(0x1e10); regmbc(0x1e12);
|
|
return;
|
|
case 'E': case 0xc8: case 0xc9: case 0xca: case 0xcb:
|
|
case 0x112: case 0x114: case 0x116: case 0x118: case 0x11a:
|
|
case 0x204: case 0x206: case 0x228: case 0x246: case 0x1e14:
|
|
case 0x1e16: case 0x1e18: case 0x1e1a: case 0x1e1c:
|
|
case 0x1eb8: case 0x1eba: case 0x1ebc: case 0x1ebe:
|
|
case 0x1ec0: case 0x1ec2: case 0x1ec4: case 0x1ec6:
|
|
regmbc('E'); regmbc(0xc8); regmbc(0xc9);
|
|
regmbc(0xca); regmbc(0xcb); regmbc(0x112);
|
|
regmbc(0x114); regmbc(0x116); regmbc(0x118);
|
|
regmbc(0x11a); regmbc(0x204); regmbc(0x206);
|
|
regmbc(0x228); regmbc(0x246); regmbc(0x1e14);
|
|
regmbc(0x1e16); regmbc(0x1e18); regmbc(0x1e1a);
|
|
regmbc(0x1e1c); regmbc(0x1eb8); regmbc(0x1eba);
|
|
regmbc(0x1ebc); regmbc(0x1ebe); regmbc(0x1ec0);
|
|
regmbc(0x1ec2); regmbc(0x1ec4); regmbc(0x1ec6);
|
|
return;
|
|
case 'F': case 0x191: case 0x1e1e: case 0xa798:
|
|
regmbc('F'); regmbc(0x191); regmbc(0x1e1e);
|
|
regmbc(0xa798);
|
|
return;
|
|
case 'G': case 0x11c: case 0x11e: case 0x120:
|
|
case 0x122: case 0x193: case 0x1e4: case 0x1e6:
|
|
case 0x1f4: case 0x1e20: case 0xa7a0:
|
|
regmbc('G'); regmbc(0x11c); regmbc(0x11e);
|
|
regmbc(0x120); regmbc(0x122); regmbc(0x193);
|
|
regmbc(0x1e4); regmbc(0x1e6); regmbc(0x1f4);
|
|
regmbc(0x1e20); regmbc(0xa7a0);
|
|
return;
|
|
case 'H': case 0x124: case 0x126: case 0x21e:
|
|
case 0x1e22: case 0x1e24: case 0x1e26:
|
|
case 0x1e28: case 0x1e2a: case 0x2c67:
|
|
regmbc('H'); regmbc(0x124); regmbc(0x126);
|
|
regmbc(0x21e); regmbc(0x1e22); regmbc(0x1e24);
|
|
regmbc(0x1e26); regmbc(0x1e28); regmbc(0x1e2a);
|
|
regmbc(0x2c67);
|
|
return;
|
|
case 'I': case 0xcc: case 0xcd: case 0xce: case 0xcf:
|
|
case 0x128: case 0x12a: case 0x12c: case 0x12e:
|
|
case 0x130: case 0x197: case 0x1cf: case 0x208:
|
|
case 0x20a: case 0x1e2c: case 0x1e2e: case 0x1ec8:
|
|
case 0x1eca:
|
|
regmbc('I'); regmbc(0xcc); regmbc(0xcd);
|
|
regmbc(0xce); regmbc(0xcf); regmbc(0x128);
|
|
regmbc(0x12a); regmbc(0x12c); regmbc(0x12e);
|
|
regmbc(0x130); regmbc(0x197); regmbc(0x1cf);
|
|
regmbc(0x208); regmbc(0x20a); regmbc(0x1e2c);
|
|
regmbc(0x1e2e); regmbc(0x1ec8); regmbc(0x1eca);
|
|
return;
|
|
case 'J': case 0x134: case 0x248:
|
|
regmbc('J'); regmbc(0x134); regmbc(0x248);
|
|
return;
|
|
case 'K': case 0x136: case 0x198: case 0x1e8: case 0x1e30:
|
|
case 0x1e32: case 0x1e34: case 0x2c69: case 0xa740:
|
|
regmbc('K'); regmbc(0x136); regmbc(0x198);
|
|
regmbc(0x1e8); regmbc(0x1e30); regmbc(0x1e32);
|
|
regmbc(0x1e34); regmbc(0x2c69); regmbc(0xa740);
|
|
return;
|
|
case 'L': case 0x139: case 0x13b: case 0x13d: case 0x13f:
|
|
case 0x141: case 0x23d: case 0x1e36: case 0x1e38:
|
|
case 0x1e3a: case 0x1e3c: case 0x2c60:
|
|
regmbc('L'); regmbc(0x139); regmbc(0x13b);
|
|
regmbc(0x13d); regmbc(0x13f); regmbc(0x141);
|
|
regmbc(0x23d); regmbc(0x1e36); regmbc(0x1e38);
|
|
regmbc(0x1e3a); regmbc(0x1e3c); regmbc(0x2c60);
|
|
return;
|
|
case 'M': case 0x1e3e: case 0x1e40: case 0x1e42:
|
|
regmbc('M'); regmbc(0x1e3e); regmbc(0x1e40);
|
|
regmbc(0x1e42);
|
|
return;
|
|
case 'N': case 0xd1:
|
|
case 0x143: case 0x145: case 0x147: case 0x1f8:
|
|
case 0x1e44: case 0x1e46: case 0x1e48: case 0x1e4a:
|
|
case 0xa7a4:
|
|
regmbc('N'); regmbc(0xd1);
|
|
regmbc(0x143); regmbc(0x145); regmbc(0x147);
|
|
regmbc(0x1f8); regmbc(0x1e44); regmbc(0x1e46);
|
|
regmbc(0x1e48); regmbc(0x1e4a); regmbc(0xa7a4);
|
|
return;
|
|
case 'O': case 0xd2: case 0xd3: case 0xd4: case 0xd5: case 0xd6:
|
|
case 0xd8: case 0x14c: case 0x14e: case 0x150: case 0x19f:
|
|
case 0x1a0: case 0x1d1: case 0x1ea: case 0x1ec: case 0x1fe:
|
|
case 0x20c: case 0x20e: case 0x22a: case 0x22c: case 0x22e:
|
|
case 0x230: case 0x1e4c: case 0x1e4e: case 0x1e50: case 0x1e52:
|
|
case 0x1ecc: case 0x1ece: case 0x1ed0: case 0x1ed2: case 0x1ed4:
|
|
case 0x1ed6: case 0x1ed8: case 0x1eda: case 0x1edc: case 0x1ede:
|
|
case 0x1ee0: case 0x1ee2:
|
|
regmbc('O'); regmbc(0xd2); regmbc(0xd3); regmbc(0xd4);
|
|
regmbc(0xd5); regmbc(0xd6); regmbc(0xd8);
|
|
regmbc(0x14c); regmbc(0x14e); regmbc(0x150);
|
|
regmbc(0x19f); regmbc(0x1a0); regmbc(0x1d1);
|
|
regmbc(0x1ea); regmbc(0x1ec); regmbc(0x1fe);
|
|
regmbc(0x20c); regmbc(0x20e); regmbc(0x22a);
|
|
regmbc(0x22c); regmbc(0x22e); regmbc(0x230);
|
|
regmbc(0x1e4c); regmbc(0x1e4e); regmbc(0x1e50);
|
|
regmbc(0x1e52); regmbc(0x1ecc); regmbc(0x1ece);
|
|
regmbc(0x1ed0); regmbc(0x1ed2); regmbc(0x1ed4);
|
|
regmbc(0x1ed6); regmbc(0x1ed8); regmbc(0x1eda);
|
|
regmbc(0x1edc); regmbc(0x1ede); regmbc(0x1ee0);
|
|
regmbc(0x1ee2);
|
|
return;
|
|
case 'P': case 0x1a4: case 0x1e54: case 0x1e56: case 0x2c63:
|
|
regmbc('P'); regmbc(0x1a4); regmbc(0x1e54);
|
|
regmbc(0x1e56); regmbc(0x2c63);
|
|
return;
|
|
case 'Q': case 0x24a:
|
|
regmbc('Q'); regmbc(0x24a);
|
|
return;
|
|
case 'R': case 0x154: case 0x156: case 0x158: case 0x210:
|
|
case 0x212: case 0x24c: case 0x1e58: case 0x1e5a:
|
|
case 0x1e5c: case 0x1e5e: case 0x2c64: case 0xa7a6:
|
|
regmbc('R'); regmbc(0x154); regmbc(0x156);
|
|
regmbc(0x210); regmbc(0x212); regmbc(0x158);
|
|
regmbc(0x24c); regmbc(0x1e58); regmbc(0x1e5a);
|
|
regmbc(0x1e5c); regmbc(0x1e5e); regmbc(0x2c64);
|
|
regmbc(0xa7a6);
|
|
return;
|
|
case 'S': case 0x15a: case 0x15c: case 0x15e: case 0x160:
|
|
case 0x218: case 0x1e60: case 0x1e62: case 0x1e64:
|
|
case 0x1e66: case 0x1e68: case 0x2c7e: case 0xa7a8:
|
|
regmbc('S'); regmbc(0x15a); regmbc(0x15c);
|
|
regmbc(0x15e); regmbc(0x160); regmbc(0x218);
|
|
regmbc(0x1e60); regmbc(0x1e62); regmbc(0x1e64);
|
|
regmbc(0x1e66); regmbc(0x1e68); regmbc(0x2c7e);
|
|
regmbc(0xa7a8);
|
|
return;
|
|
case 'T': case 0x162: case 0x164: case 0x166: case 0x1ac:
|
|
case 0x1ae: case 0x21a: case 0x23e: case 0x1e6a: case 0x1e6c:
|
|
case 0x1e6e: case 0x1e70:
|
|
regmbc('T'); regmbc(0x162); regmbc(0x164);
|
|
regmbc(0x166); regmbc(0x1ac); regmbc(0x23e);
|
|
regmbc(0x1ae); regmbc(0x21a); regmbc(0x1e6a);
|
|
regmbc(0x1e6c); regmbc(0x1e6e); regmbc(0x1e70);
|
|
return;
|
|
case 'U': case 0xd9: case 0xda: case 0xdb: case 0xdc:
|
|
case 0x168: case 0x16a: case 0x16c: case 0x16e:
|
|
case 0x170: case 0x172: case 0x1af: case 0x1d3:
|
|
case 0x1d5: case 0x1d7: case 0x1d9: case 0x1db:
|
|
case 0x214: case 0x216: case 0x244: case 0x1e72:
|
|
case 0x1e74: case 0x1e76: case 0x1e78: case 0x1e7a:
|
|
case 0x1ee4: case 0x1ee6: case 0x1ee8: case 0x1eea:
|
|
case 0x1eec: case 0x1eee: case 0x1ef0:
|
|
regmbc('U'); regmbc(0xd9); regmbc(0xda);
|
|
regmbc(0xdb); regmbc(0xdc); regmbc(0x168);
|
|
regmbc(0x16a); regmbc(0x16c); regmbc(0x16e);
|
|
regmbc(0x170); regmbc(0x172); regmbc(0x1af);
|
|
regmbc(0x1d3); regmbc(0x1d5); regmbc(0x1d7);
|
|
regmbc(0x1d9); regmbc(0x1db); regmbc(0x214);
|
|
regmbc(0x216); regmbc(0x244); regmbc(0x1e72);
|
|
regmbc(0x1e74); regmbc(0x1e76); regmbc(0x1e78);
|
|
regmbc(0x1e7a); regmbc(0x1ee4); regmbc(0x1ee6);
|
|
regmbc(0x1ee8); regmbc(0x1eea); regmbc(0x1eec);
|
|
regmbc(0x1eee); regmbc(0x1ef0);
|
|
return;
|
|
case 'V': case 0x1b2: case 0x1e7c: case 0x1e7e:
|
|
regmbc('V'); regmbc(0x1b2); regmbc(0x1e7c);
|
|
regmbc(0x1e7e);
|
|
return;
|
|
case 'W': case 0x174: case 0x1e80: case 0x1e82:
|
|
case 0x1e84: case 0x1e86: case 0x1e88:
|
|
regmbc('W'); regmbc(0x174); regmbc(0x1e80);
|
|
regmbc(0x1e82); regmbc(0x1e84); regmbc(0x1e86);
|
|
regmbc(0x1e88);
|
|
return;
|
|
case 'X': case 0x1e8a: case 0x1e8c:
|
|
regmbc('X'); regmbc(0x1e8a); regmbc(0x1e8c);
|
|
return;
|
|
case 'Y': case 0xdd:
|
|
case 0x176: case 0x178: case 0x1b3: case 0x232: case 0x24e:
|
|
case 0x1e8e: case 0x1ef2: case 0x1ef6: case 0x1ef4: case 0x1ef8:
|
|
regmbc('Y'); regmbc(0xdd); regmbc(0x176);
|
|
regmbc(0x178); regmbc(0x1b3); regmbc(0x232);
|
|
regmbc(0x24e); regmbc(0x1e8e); regmbc(0x1ef2);
|
|
regmbc(0x1ef4); regmbc(0x1ef6); regmbc(0x1ef8);
|
|
return;
|
|
case 'Z': case 0x179: case 0x17b: case 0x17d: case 0x1b5:
|
|
case 0x1e90: case 0x1e92: case 0x1e94: case 0x2c6b:
|
|
regmbc('Z'); regmbc(0x179); regmbc(0x17b);
|
|
regmbc(0x17d); regmbc(0x1b5); regmbc(0x1e90);
|
|
regmbc(0x1e92); regmbc(0x1e94); regmbc(0x2c6b);
|
|
return;
|
|
case 'a': case 0xe0: case 0xe1: case 0xe2:
|
|
case 0xe3: case 0xe4: case 0xe5: case 0x101: case 0x103:
|
|
case 0x105: case 0x1ce: case 0x1df: case 0x1e1: case 0x1fb:
|
|
case 0x201: case 0x203: case 0x227: case 0x1d8f: case 0x1e01:
|
|
case 0x1e9a: case 0x1ea1: case 0x1ea3: case 0x1ea5:
|
|
case 0x1ea7: case 0x1ea9: case 0x1eab: case 0x1ead:
|
|
case 0x1eaf: case 0x1eb1: case 0x1eb3: case 0x1eb5:
|
|
case 0x1eb7: case 0x2c65:
|
|
regmbc('a'); regmbc(0xe0); regmbc(0xe1);
|
|
regmbc(0xe2); regmbc(0xe3); regmbc(0xe4);
|
|
regmbc(0xe5); regmbc(0x101); regmbc(0x103);
|
|
regmbc(0x105); regmbc(0x1ce); regmbc(0x1df);
|
|
regmbc(0x1e1); regmbc(0x1fb); regmbc(0x201);
|
|
regmbc(0x203); regmbc(0x227); regmbc(0x1d8f);
|
|
regmbc(0x1e01); regmbc(0x1e9a); regmbc(0x1ea1);
|
|
regmbc(0x1ea3); regmbc(0x1ea5); regmbc(0x1ea7);
|
|
regmbc(0x1ea9); regmbc(0x1eab); regmbc(0x1ead);
|
|
regmbc(0x1eaf); regmbc(0x1eb1); regmbc(0x1eb3);
|
|
regmbc(0x1eb5); regmbc(0x1eb7); regmbc(0x2c65);
|
|
return;
|
|
case 'b': case 0x180: case 0x253: case 0x1d6c: case 0x1d80:
|
|
case 0x1e03: case 0x1e05: case 0x1e07:
|
|
regmbc('b');
|
|
regmbc(0x180); regmbc(0x253); regmbc(0x1d6c);
|
|
regmbc(0x1d80); regmbc(0x1e03); regmbc(0x1e05);
|
|
regmbc(0x1e07);
|
|
return;
|
|
case 'c': case 0xe7:
|
|
case 0x107: case 0x109: case 0x10b: case 0x10d: case 0x188:
|
|
case 0x23c: case 0x1e09: case 0xa793: case 0xa794:
|
|
regmbc('c'); regmbc(0xe7); regmbc(0x107);
|
|
regmbc(0x109); regmbc(0x10b); regmbc(0x10d);
|
|
regmbc(0x188); regmbc(0x23c); regmbc(0x1e09);
|
|
regmbc(0xa793); regmbc(0xa794);
|
|
return;
|
|
case 'd': case 0x10f: case 0x111: case 0x257: case 0x1d6d:
|
|
case 0x1d81: case 0x1d91: case 0x1e0b: case 0x1e0d:
|
|
case 0x1e0f: case 0x1e11: case 0x1e13:
|
|
regmbc('d'); regmbc(0x10f); regmbc(0x111);
|
|
regmbc(0x257); regmbc(0x1d6d); regmbc(0x1d81);
|
|
regmbc(0x1d91); regmbc(0x1e0b); regmbc(0x1e0d);
|
|
regmbc(0x1e0f); regmbc(0x1e11); regmbc(0x1e13);
|
|
return;
|
|
case 'e': case 0xe8: case 0xe9: case 0xea: case 0xeb:
|
|
case 0x113: case 0x115: case 0x117: case 0x119:
|
|
case 0x11b: case 0x205: case 0x207: case 0x229:
|
|
case 0x247: case 0x1d92: case 0x1e15: case 0x1e17:
|
|
case 0x1e19: case 0x1e1b: case 0x1eb9: case 0x1ebb:
|
|
case 0x1e1d: case 0x1ebd: case 0x1ebf: case 0x1ec1:
|
|
case 0x1ec3: case 0x1ec5: case 0x1ec7:
|
|
regmbc('e'); regmbc(0xe8); regmbc(0xe9);
|
|
regmbc(0xea); regmbc(0xeb); regmbc(0x113);
|
|
regmbc(0x115); regmbc(0x117); regmbc(0x119);
|
|
regmbc(0x11b); regmbc(0x205); regmbc(0x207);
|
|
regmbc(0x229); regmbc(0x247); regmbc(0x1d92);
|
|
regmbc(0x1e15); regmbc(0x1e17); regmbc(0x1e19);
|
|
regmbc(0x1e1b); regmbc(0x1e1d); regmbc(0x1eb9);
|
|
regmbc(0x1ebb); regmbc(0x1ebd); regmbc(0x1ebf);
|
|
regmbc(0x1ec1); regmbc(0x1ec3); regmbc(0x1ec5);
|
|
regmbc(0x1ec7);
|
|
return;
|
|
case 'f': case 0x192: case 0x1d6e: case 0x1d82:
|
|
case 0x1e1f: case 0xa799:
|
|
regmbc('f'); regmbc(0x192); regmbc(0x1d6e);
|
|
regmbc(0x1d82); regmbc(0x1e1f); regmbc(0xa799);
|
|
return;
|
|
case 'g': case 0x11d: case 0x11f: case 0x121: case 0x123:
|
|
case 0x1e5: case 0x1e7: case 0x260: case 0x1f5: case 0x1d83:
|
|
case 0x1e21: case 0xa7a1:
|
|
regmbc('g'); regmbc(0x11d); regmbc(0x11f);
|
|
regmbc(0x121); regmbc(0x123); regmbc(0x1e5);
|
|
regmbc(0x1e7); regmbc(0x1f5); regmbc(0x260);
|
|
regmbc(0x1d83); regmbc(0x1e21); regmbc(0xa7a1);
|
|
return;
|
|
case 'h': case 0x125: case 0x127: case 0x21f: case 0x1e23:
|
|
case 0x1e25: case 0x1e27: case 0x1e29: case 0x1e2b:
|
|
case 0x1e96: case 0x2c68: case 0xa795:
|
|
regmbc('h'); regmbc(0x125); regmbc(0x127);
|
|
regmbc(0x21f); regmbc(0x1e23); regmbc(0x1e25);
|
|
regmbc(0x1e27); regmbc(0x1e29); regmbc(0x1e2b);
|
|
regmbc(0x1e96); regmbc(0x2c68); regmbc(0xa795);
|
|
return;
|
|
case 'i': case 0xec: case 0xed: case 0xee: case 0xef:
|
|
case 0x129: case 0x12b: case 0x12d: case 0x12f:
|
|
case 0x1d0: case 0x209: case 0x20b: case 0x268:
|
|
case 0x1d96: case 0x1e2d: case 0x1e2f: case 0x1ec9:
|
|
case 0x1ecb:
|
|
regmbc('i'); regmbc(0xec); regmbc(0xed);
|
|
regmbc(0xee); regmbc(0xef); regmbc(0x129);
|
|
regmbc(0x12b); regmbc(0x12d); regmbc(0x12f);
|
|
regmbc(0x1d0); regmbc(0x209); regmbc(0x20b);
|
|
regmbc(0x268); regmbc(0x1d96); regmbc(0x1e2d);
|
|
regmbc(0x1e2f); regmbc(0x1ec9); regmbc(0x1ecb);
|
|
return;
|
|
case 'j': case 0x135: case 0x1f0: case 0x249:
|
|
regmbc('j'); regmbc(0x135); regmbc(0x1f0);
|
|
regmbc(0x249);
|
|
return;
|
|
case 'k': case 0x137: case 0x199: case 0x1e9:
|
|
case 0x1d84: case 0x1e31: case 0x1e33: case 0x1e35:
|
|
case 0x2c6a: case 0xa741:
|
|
regmbc('k'); regmbc(0x137); regmbc(0x199);
|
|
regmbc(0x1e9); regmbc(0x1d84); regmbc(0x1e31);
|
|
regmbc(0x1e33); regmbc(0x1e35); regmbc(0x2c6a);
|
|
regmbc(0xa741);
|
|
return;
|
|
case 'l': case 0x13a: case 0x13c: case 0x13e:
|
|
case 0x140: case 0x142: case 0x19a: case 0x1e37:
|
|
case 0x1e39: case 0x1e3b: case 0x1e3d: case 0x2c61:
|
|
regmbc('l'); regmbc(0x13a); regmbc(0x13c);
|
|
regmbc(0x13e); regmbc(0x140); regmbc(0x142);
|
|
regmbc(0x19a); regmbc(0x1e37); regmbc(0x1e39);
|
|
regmbc(0x1e3b); regmbc(0x1e3d); regmbc(0x2c61);
|
|
return;
|
|
case 'm': case 0x1d6f: case 0x1e3f: case 0x1e41: case 0x1e43:
|
|
regmbc('m'); regmbc(0x1d6f); regmbc(0x1e3f);
|
|
regmbc(0x1e41); regmbc(0x1e43);
|
|
return;
|
|
case 'n': case 0xf1: case 0x144: case 0x146: case 0x148:
|
|
case 0x149: case 0x1f9: case 0x1d70: case 0x1d87:
|
|
case 0x1e45: case 0x1e47: case 0x1e49: case 0x1e4b:
|
|
case 0xa7a5:
|
|
regmbc('n'); regmbc(0xf1); regmbc(0x144);
|
|
regmbc(0x146); regmbc(0x148); regmbc(0x149);
|
|
regmbc(0x1f9); regmbc(0x1d70); regmbc(0x1d87);
|
|
regmbc(0x1e45); regmbc(0x1e47); regmbc(0x1e49);
|
|
regmbc(0x1e4b); regmbc(0xa7a5);
|
|
return;
|
|
case 'o': case 0xf2: case 0xf3: case 0xf4: case 0xf5:
|
|
case 0xf6: case 0xf8: case 0x14d: case 0x14f: case 0x151:
|
|
case 0x1a1: case 0x1d2: case 0x1eb: case 0x1ed: case 0x1ff:
|
|
case 0x20d: case 0x20f: case 0x22b: case 0x22d: case 0x22f:
|
|
case 0x231: case 0x275: case 0x1e4d: case 0x1e4f:
|
|
case 0x1e51: case 0x1e53: case 0x1ecd: case 0x1ecf:
|
|
case 0x1ed1: case 0x1ed3: case 0x1ed5: case 0x1ed7:
|
|
case 0x1ed9: case 0x1edb: case 0x1edd: case 0x1edf:
|
|
case 0x1ee1: case 0x1ee3:
|
|
regmbc('o'); regmbc(0xf2); regmbc(0xf3);
|
|
regmbc(0xf4); regmbc(0xf5); regmbc(0xf6);
|
|
regmbc(0xf8); regmbc(0x14d); regmbc(0x14f);
|
|
regmbc(0x151); regmbc(0x1a1); regmbc(0x1d2);
|
|
regmbc(0x1eb); regmbc(0x1ed); regmbc(0x1ff);
|
|
regmbc(0x20d); regmbc(0x20f); regmbc(0x22b);
|
|
regmbc(0x22d); regmbc(0x22f); regmbc(0x231);
|
|
regmbc(0x275); regmbc(0x1e4d); regmbc(0x1e4f);
|
|
regmbc(0x1e51); regmbc(0x1e53); regmbc(0x1ecd);
|
|
regmbc(0x1ecf); regmbc(0x1ed1); regmbc(0x1ed3);
|
|
regmbc(0x1ed5); regmbc(0x1ed7); regmbc(0x1ed9);
|
|
regmbc(0x1edb); regmbc(0x1edd); regmbc(0x1edf);
|
|
regmbc(0x1ee1); regmbc(0x1ee3);
|
|
return;
|
|
case 'p': case 0x1a5: case 0x1d71: case 0x1d88: case 0x1d7d:
|
|
case 0x1e55: case 0x1e57:
|
|
regmbc('p'); regmbc(0x1a5); regmbc(0x1d71);
|
|
regmbc(0x1d7d); regmbc(0x1d88); regmbc(0x1e55);
|
|
regmbc(0x1e57);
|
|
return;
|
|
case 'q': case 0x24b: case 0x2a0:
|
|
regmbc('q'); regmbc(0x24b); regmbc(0x2a0);
|
|
return;
|
|
case 'r': case 0x155: case 0x157: case 0x159: case 0x211:
|
|
case 0x213: case 0x24d: case 0x27d: case 0x1d72: case 0x1d73:
|
|
case 0x1d89: case 0x1e59: case 0x1e5b: case 0x1e5d: case 0x1e5f:
|
|
case 0xa7a7:
|
|
regmbc('r'); regmbc(0x155); regmbc(0x157);
|
|
regmbc(0x159); regmbc(0x211); regmbc(0x213);
|
|
regmbc(0x24d); regmbc(0x1d72); regmbc(0x1d73);
|
|
regmbc(0x1d89); regmbc(0x1e59); regmbc(0x27d);
|
|
regmbc(0x1e5b); regmbc(0x1e5d); regmbc(0x1e5f);
|
|
regmbc(0xa7a7);
|
|
return;
|
|
case 's': case 0x15b: case 0x15d: case 0x15f: case 0x161:
|
|
case 0x1e61: case 0x219: case 0x23f: case 0x1d74: case 0x1d8a:
|
|
case 0x1e63: case 0x1e65: case 0x1e67: case 0x1e69: case 0xa7a9:
|
|
regmbc('s'); regmbc(0x15b); regmbc(0x15d);
|
|
regmbc(0x15f); regmbc(0x161); regmbc(0x23f);
|
|
regmbc(0x219); regmbc(0x1d74); regmbc(0x1d8a);
|
|
regmbc(0x1e61); regmbc(0x1e63); regmbc(0x1e65);
|
|
regmbc(0x1e67); regmbc(0x1e69); regmbc(0xa7a9);
|
|
return;
|
|
case 't': case 0x163: case 0x165: case 0x167: case 0x1ab:
|
|
case 0x1ad: case 0x21b: case 0x288: case 0x1d75: case 0x1e6b:
|
|
case 0x1e6d: case 0x1e6f: case 0x1e71: case 0x1e97: case 0x2c66:
|
|
regmbc('t'); regmbc(0x163); regmbc(0x165);
|
|
regmbc(0x167); regmbc(0x1ab); regmbc(0x21b);
|
|
regmbc(0x1ad); regmbc(0x288); regmbc(0x1d75);
|
|
regmbc(0x1e6b); regmbc(0x1e6d); regmbc(0x1e6f);
|
|
regmbc(0x1e71); regmbc(0x1e97); regmbc(0x2c66);
|
|
return;
|
|
case 'u': case 0xf9: case 0xfa: case 0xfb: case 0xfc:
|
|
case 0x169: case 0x16b: case 0x16d: case 0x16f:
|
|
case 0x171: case 0x173: case 0x1b0: case 0x1d4:
|
|
case 0x1d6: case 0x1d8: case 0x1da: case 0x1dc:
|
|
case 0x215: case 0x217: case 0x289: case 0x1e73:
|
|
case 0x1d7e: case 0x1d99: case 0x1e75: case 0x1e77:
|
|
case 0x1e79: case 0x1e7b: case 0x1ee5: case 0x1ee7:
|
|
case 0x1ee9: case 0x1eeb: case 0x1eed: case 0x1eef:
|
|
case 0x1ef1:
|
|
regmbc('u'); regmbc(0xf9); regmbc(0xfa);
|
|
regmbc(0xfb); regmbc(0xfc); regmbc(0x169);
|
|
regmbc(0x16b); regmbc(0x16d); regmbc(0x16f);
|
|
regmbc(0x171); regmbc(0x173); regmbc(0x1d6);
|
|
regmbc(0x1d8); regmbc(0x1da); regmbc(0x1dc);
|
|
regmbc(0x215); regmbc(0x217); regmbc(0x1b0);
|
|
regmbc(0x1d4); regmbc(0x289); regmbc(0x1d7e);
|
|
regmbc(0x1d99); regmbc(0x1e73); regmbc(0x1e75);
|
|
regmbc(0x1e77); regmbc(0x1e79); regmbc(0x1e7b);
|
|
regmbc(0x1ee5); regmbc(0x1ee7); regmbc(0x1ee9);
|
|
regmbc(0x1eeb); regmbc(0x1eed); regmbc(0x1eef);
|
|
regmbc(0x1ef1);
|
|
return;
|
|
case 'v': case 0x28b: case 0x1d8c: case 0x1e7d: case 0x1e7f:
|
|
regmbc('v'); regmbc(0x28b); regmbc(0x1d8c);
|
|
regmbc(0x1e7d); regmbc(0x1e7f);
|
|
return;
|
|
case 'w': case 0x175: case 0x1e81: case 0x1e83:
|
|
case 0x1e85: case 0x1e87: case 0x1e89: case 0x1e98:
|
|
regmbc('w'); regmbc(0x175); regmbc(0x1e81);
|
|
regmbc(0x1e83); regmbc(0x1e85); regmbc(0x1e87);
|
|
regmbc(0x1e89); regmbc(0x1e98);
|
|
return;
|
|
case 'x': case 0x1e8b: case 0x1e8d:
|
|
regmbc('x'); regmbc(0x1e8b); regmbc(0x1e8d);
|
|
return;
|
|
case 'y': case 0xfd: case 0xff: case 0x177: case 0x1b4:
|
|
case 0x233: case 0x24f: case 0x1e8f: case 0x1e99: case 0x1ef3:
|
|
case 0x1ef5: case 0x1ef7: case 0x1ef9:
|
|
regmbc('y'); regmbc(0xfd); regmbc(0xff);
|
|
regmbc(0x177); regmbc(0x1b4); regmbc(0x233);
|
|
regmbc(0x24f); regmbc(0x1e8f); regmbc(0x1e99);
|
|
regmbc(0x1ef3); regmbc(0x1ef5); regmbc(0x1ef7);
|
|
regmbc(0x1ef9);
|
|
return;
|
|
case 'z': case 0x17a: case 0x17c: case 0x17e: case 0x1b6:
|
|
case 0x1d76: case 0x1d8e: case 0x1e91: case 0x1e93:
|
|
case 0x1e95: case 0x2c6c:
|
|
regmbc('z'); regmbc(0x17a); regmbc(0x17c);
|
|
regmbc(0x17e); regmbc(0x1b6); regmbc(0x1d76);
|
|
regmbc(0x1d8e); regmbc(0x1e91); regmbc(0x1e93);
|
|
regmbc(0x1e95); regmbc(0x2c6c);
|
|
return;
|
|
}
|
|
}
|
|
regmbc(c);
|
|
}
|
|
|
|
/*
|
|
* Emit a node.
|
|
* Return pointer to generated code.
|
|
*/
|
|
static char_u *
|
|
regnode(int op)
|
|
{
|
|
char_u *ret;
|
|
|
|
ret = regcode;
|
|
if (ret == JUST_CALC_SIZE)
|
|
regsize += 3;
|
|
else
|
|
{
|
|
*regcode++ = op;
|
|
*regcode++ = NUL; // Null "next" pointer.
|
|
*regcode++ = NUL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Write a long as four bytes at "p" and return pointer to the next char.
|
|
*/
|
|
static char_u *
|
|
re_put_long(char_u *p, long_u val)
|
|
{
|
|
*p++ = (char_u) ((val >> 24) & 0377);
|
|
*p++ = (char_u) ((val >> 16) & 0377);
|
|
*p++ = (char_u) ((val >> 8) & 0377);
|
|
*p++ = (char_u) (val & 0377);
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* regnext - dig the "next" pointer out of a node
|
|
* Returns NULL when calculating size, when there is no next item and when
|
|
* there is an error.
|
|
*/
|
|
static char_u *
|
|
regnext(char_u *p)
|
|
{
|
|
int offset;
|
|
|
|
if (p == JUST_CALC_SIZE || reg_toolong)
|
|
return NULL;
|
|
|
|
offset = NEXT(p);
|
|
if (offset == 0)
|
|
return NULL;
|
|
|
|
if (OP(p) == BACK)
|
|
return p - offset;
|
|
else
|
|
return p + offset;
|
|
}
|
|
|
|
/*
|
|
* Set the next-pointer at the end of a node chain.
|
|
*/
|
|
static void
|
|
regtail(char_u *p, char_u *val)
|
|
{
|
|
char_u *scan;
|
|
char_u *temp;
|
|
int offset;
|
|
|
|
if (p == JUST_CALC_SIZE)
|
|
return;
|
|
|
|
// Find last node.
|
|
scan = p;
|
|
for (;;)
|
|
{
|
|
temp = regnext(scan);
|
|
if (temp == NULL)
|
|
break;
|
|
scan = temp;
|
|
}
|
|
|
|
if (OP(scan) == BACK)
|
|
offset = (int)(scan - val);
|
|
else
|
|
offset = (int)(val - scan);
|
|
// When the offset uses more than 16 bits it can no longer fit in the two
|
|
// bytes available. Use a global flag to avoid having to check return
|
|
// values in too many places.
|
|
if (offset > 0xffff)
|
|
reg_toolong = TRUE;
|
|
else
|
|
{
|
|
*(scan + 1) = (char_u) (((unsigned)offset >> 8) & 0377);
|
|
*(scan + 2) = (char_u) (offset & 0377);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Like regtail, on item after a BRANCH; nop if none.
|
|
*/
|
|
static void
|
|
regoptail(char_u *p, char_u *val)
|
|
{
|
|
// When op is neither BRANCH nor BRACE_COMPLEX0-9, it is "operandless"
|
|
if (p == NULL || p == JUST_CALC_SIZE
|
|
|| (OP(p) != BRANCH
|
|
&& (OP(p) < BRACE_COMPLEX || OP(p) > BRACE_COMPLEX + 9)))
|
|
return;
|
|
regtail(OPERAND(p), val);
|
|
}
|
|
|
|
/*
|
|
* Insert an operator in front of already-emitted operand
|
|
*
|
|
* Means relocating the operand.
|
|
*/
|
|
static void
|
|
reginsert(int op, char_u *opnd)
|
|
{
|
|
char_u *src;
|
|
char_u *dst;
|
|
char_u *place;
|
|
|
|
if (regcode == JUST_CALC_SIZE)
|
|
{
|
|
regsize += 3;
|
|
return;
|
|
}
|
|
src = regcode;
|
|
regcode += 3;
|
|
dst = regcode;
|
|
while (src > opnd)
|
|
*--dst = *--src;
|
|
|
|
place = opnd; // Op node, where operand used to be.
|
|
*place++ = op;
|
|
*place++ = NUL;
|
|
*place = NUL;
|
|
}
|
|
|
|
/*
|
|
* Insert an operator in front of already-emitted operand.
|
|
* Add a number to the operator.
|
|
*/
|
|
static void
|
|
reginsert_nr(int op, long val, char_u *opnd)
|
|
{
|
|
char_u *src;
|
|
char_u *dst;
|
|
char_u *place;
|
|
|
|
if (regcode == JUST_CALC_SIZE)
|
|
{
|
|
regsize += 7;
|
|
return;
|
|
}
|
|
src = regcode;
|
|
regcode += 7;
|
|
dst = regcode;
|
|
while (src > opnd)
|
|
*--dst = *--src;
|
|
|
|
place = opnd; // Op node, where operand used to be.
|
|
*place++ = op;
|
|
*place++ = NUL;
|
|
*place++ = NUL;
|
|
re_put_long(place, (long_u)val);
|
|
}
|
|
|
|
/*
|
|
* Insert an operator in front of already-emitted operand.
|
|
* The operator has the given limit values as operands. Also set next pointer.
|
|
*
|
|
* Means relocating the operand.
|
|
*/
|
|
static void
|
|
reginsert_limits(
|
|
int op,
|
|
long minval,
|
|
long maxval,
|
|
char_u *opnd)
|
|
{
|
|
char_u *src;
|
|
char_u *dst;
|
|
char_u *place;
|
|
|
|
if (regcode == JUST_CALC_SIZE)
|
|
{
|
|
regsize += 11;
|
|
return;
|
|
}
|
|
src = regcode;
|
|
regcode += 11;
|
|
dst = regcode;
|
|
while (src > opnd)
|
|
*--dst = *--src;
|
|
|
|
place = opnd; // Op node, where operand used to be.
|
|
*place++ = op;
|
|
*place++ = NUL;
|
|
*place++ = NUL;
|
|
place = re_put_long(place, (long_u)minval);
|
|
place = re_put_long(place, (long_u)maxval);
|
|
regtail(opnd, place);
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if the back reference is legal. We must have seen the close
|
|
* brace.
|
|
* TODO: Should also check that we don't refer to something that is repeated
|
|
* (+*=): what instance of the repetition should we match?
|
|
*/
|
|
static int
|
|
seen_endbrace(int refnum)
|
|
{
|
|
if (!had_endbrace[refnum])
|
|
{
|
|
char_u *p;
|
|
|
|
// Trick: check if "@<=" or "@<!" follows, in which case
|
|
// the \1 can appear before the referenced match.
|
|
for (p = regparse; *p != NUL; ++p)
|
|
if (p[0] == '@' && p[1] == '<' && (p[2] == '!' || p[2] == '='))
|
|
break;
|
|
if (*p == NUL)
|
|
{
|
|
emsg(_(e_illegal_back_reference));
|
|
rc_did_emsg = TRUE;
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Parse the lowest level.
|
|
*
|
|
* Optimization: gobbles an entire sequence of ordinary characters so that
|
|
* it can turn them into a single node, which is smaller to store and
|
|
* faster to run. Don't do this when one_exactly is set.
|
|
*/
|
|
static char_u *
|
|
regatom(int *flagp)
|
|
{
|
|
char_u *ret;
|
|
int flags;
|
|
int c;
|
|
char_u *p;
|
|
int extra = 0;
|
|
int save_prev_at_start = prev_at_start;
|
|
|
|
*flagp = WORST; // Tentatively.
|
|
|
|
c = getchr();
|
|
switch (c)
|
|
{
|
|
case Magic('^'):
|
|
ret = regnode(BOL);
|
|
break;
|
|
|
|
case Magic('$'):
|
|
ret = regnode(EOL);
|
|
#if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
had_eol = TRUE;
|
|
#endif
|
|
break;
|
|
|
|
case Magic('<'):
|
|
ret = regnode(BOW);
|
|
break;
|
|
|
|
case Magic('>'):
|
|
ret = regnode(EOW);
|
|
break;
|
|
|
|
case Magic('_'):
|
|
c = no_Magic(getchr());
|
|
if (c == '^') // "\_^" is start-of-line
|
|
{
|
|
ret = regnode(BOL);
|
|
break;
|
|
}
|
|
if (c == '$') // "\_$" is end-of-line
|
|
{
|
|
ret = regnode(EOL);
|
|
#if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
had_eol = TRUE;
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
extra = ADD_NL;
|
|
*flagp |= HASNL;
|
|
|
|
// "\_[" is character range plus newline
|
|
if (c == '[')
|
|
goto collection;
|
|
|
|
// "\_x" is character class plus newline
|
|
// FALLTHROUGH
|
|
|
|
// Character classes.
|
|
case Magic('.'):
|
|
case Magic('i'):
|
|
case Magic('I'):
|
|
case Magic('k'):
|
|
case Magic('K'):
|
|
case Magic('f'):
|
|
case Magic('F'):
|
|
case Magic('p'):
|
|
case Magic('P'):
|
|
case Magic('s'):
|
|
case Magic('S'):
|
|
case Magic('d'):
|
|
case Magic('D'):
|
|
case Magic('x'):
|
|
case Magic('X'):
|
|
case Magic('o'):
|
|
case Magic('O'):
|
|
case Magic('w'):
|
|
case Magic('W'):
|
|
case Magic('h'):
|
|
case Magic('H'):
|
|
case Magic('a'):
|
|
case Magic('A'):
|
|
case Magic('l'):
|
|
case Magic('L'):
|
|
case Magic('u'):
|
|
case Magic('U'):
|
|
p = vim_strchr(classchars, no_Magic(c));
|
|
if (p == NULL)
|
|
EMSG_RET_NULL(_(e_invalid_use_of_underscore));
|
|
|
|
// When '.' is followed by a composing char ignore the dot, so that
|
|
// the composing char is matched here.
|
|
if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr()))
|
|
{
|
|
c = getchr();
|
|
goto do_multibyte;
|
|
}
|
|
ret = regnode(classcodes[p - classchars] + extra);
|
|
*flagp |= HASWIDTH | SIMPLE;
|
|
break;
|
|
|
|
case Magic('n'):
|
|
if (reg_string)
|
|
{
|
|
// In a string "\n" matches a newline character.
|
|
ret = regnode(EXACTLY);
|
|
regc(NL);
|
|
regc(NUL);
|
|
*flagp |= HASWIDTH | SIMPLE;
|
|
}
|
|
else
|
|
{
|
|
// In buffer text "\n" matches the end of a line.
|
|
ret = regnode(NEWL);
|
|
*flagp |= HASWIDTH | HASNL;
|
|
}
|
|
break;
|
|
|
|
case Magic('('):
|
|
if (one_exactly)
|
|
EMSG_ONE_RET_NULL;
|
|
ret = reg(REG_PAREN, &flags);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
*flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH);
|
|
break;
|
|
|
|
case NUL:
|
|
case Magic('|'):
|
|
case Magic('&'):
|
|
case Magic(')'):
|
|
if (one_exactly)
|
|
EMSG_ONE_RET_NULL;
|
|
// Supposed to be caught earlier.
|
|
IEMSG_RET_NULL(e_internal_error_in_regexp);
|
|
// NOTREACHED
|
|
|
|
case Magic('='):
|
|
case Magic('?'):
|
|
case Magic('+'):
|
|
case Magic('@'):
|
|
case Magic('{'):
|
|
case Magic('*'):
|
|
c = no_Magic(c);
|
|
EMSG3_RET_NULL(_(e_str_chr_follows_nothing),
|
|
(c == '*' ? reg_magic >= MAGIC_ON : reg_magic == MAGIC_ALL), c);
|
|
// NOTREACHED
|
|
|
|
case Magic('~'): // previous substitute pattern
|
|
if (reg_prev_sub != NULL)
|
|
{
|
|
char_u *lp;
|
|
|
|
ret = regnode(EXACTLY);
|
|
lp = reg_prev_sub;
|
|
while (*lp != NUL)
|
|
regc(*lp++);
|
|
regc(NUL);
|
|
if (*reg_prev_sub != NUL)
|
|
{
|
|
*flagp |= HASWIDTH;
|
|
if ((lp - reg_prev_sub) == 1)
|
|
*flagp |= SIMPLE;
|
|
}
|
|
}
|
|
else
|
|
EMSG_RET_NULL(_(e_no_previous_substitute_regular_expression));
|
|
break;
|
|
|
|
case Magic('1'):
|
|
case Magic('2'):
|
|
case Magic('3'):
|
|
case Magic('4'):
|
|
case Magic('5'):
|
|
case Magic('6'):
|
|
case Magic('7'):
|
|
case Magic('8'):
|
|
case Magic('9'):
|
|
{
|
|
int refnum;
|
|
|
|
refnum = c - Magic('0');
|
|
if (!seen_endbrace(refnum))
|
|
return NULL;
|
|
ret = regnode(BACKREF + refnum);
|
|
}
|
|
break;
|
|
|
|
case Magic('z'):
|
|
{
|
|
c = no_Magic(getchr());
|
|
switch (c)
|
|
{
|
|
#ifdef FEAT_SYN_HL
|
|
case '(': if ((reg_do_extmatch & REX_SET) == 0)
|
|
EMSG_RET_NULL(_(e_z_not_allowed_here));
|
|
if (one_exactly)
|
|
EMSG_ONE_RET_NULL;
|
|
ret = reg(REG_ZPAREN, &flags);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
*flagp |= flags & (HASWIDTH|SPSTART|HASNL|HASLOOKBH);
|
|
re_has_z = REX_SET;
|
|
break;
|
|
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9': if ((reg_do_extmatch & REX_USE) == 0)
|
|
EMSG_RET_NULL(_(e_z1_z9_not_allowed_here));
|
|
ret = regnode(ZREF + c - '0');
|
|
re_has_z = REX_USE;
|
|
break;
|
|
#endif
|
|
|
|
case 's': ret = regnode(MOPEN + 0);
|
|
if (re_mult_next("\\zs") == FAIL)
|
|
return NULL;
|
|
break;
|
|
|
|
case 'e': ret = regnode(MCLOSE + 0);
|
|
if (re_mult_next("\\ze") == FAIL)
|
|
return NULL;
|
|
break;
|
|
|
|
default: EMSG_RET_NULL(_(e_invalid_character_after_bsl_z));
|
|
}
|
|
}
|
|
break;
|
|
|
|
case Magic('%'):
|
|
{
|
|
c = no_Magic(getchr());
|
|
switch (c)
|
|
{
|
|
// () without a back reference
|
|
case '(':
|
|
if (one_exactly)
|
|
EMSG_ONE_RET_NULL;
|
|
ret = reg(REG_NPAREN, &flags);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
*flagp |= flags & (HASWIDTH | SPSTART | HASNL | HASLOOKBH);
|
|
break;
|
|
|
|
// Catch \%^ and \%$ regardless of where they appear in the
|
|
// pattern -- regardless of whether or not it makes sense.
|
|
case '^':
|
|
ret = regnode(RE_BOF);
|
|
break;
|
|
|
|
case '$':
|
|
ret = regnode(RE_EOF);
|
|
break;
|
|
|
|
case '#':
|
|
if (regparse[0] == '=' && regparse[1] >= 48
|
|
&& regparse[1] <= 50)
|
|
{
|
|
// misplaced \%#=1
|
|
semsg(_(e_atom_engine_must_be_at_start_of_pattern),
|
|
regparse[1]);
|
|
return FAIL;
|
|
}
|
|
ret = regnode(CURSOR);
|
|
break;
|
|
|
|
case 'V':
|
|
ret = regnode(RE_VISUAL);
|
|
break;
|
|
|
|
case 'C':
|
|
ret = regnode(RE_COMPOSING);
|
|
break;
|
|
|
|
// \%[abc]: Emit as a list of branches, all ending at the last
|
|
// branch which matches nothing.
|
|
case '[':
|
|
if (one_exactly) // doesn't nest
|
|
EMSG_ONE_RET_NULL;
|
|
{
|
|
char_u *lastbranch;
|
|
char_u *lastnode = NULL;
|
|
char_u *br;
|
|
|
|
ret = NULL;
|
|
while ((c = getchr()) != ']')
|
|
{
|
|
if (c == NUL)
|
|
EMSG2_RET_NULL(_(e_missing_sb_after_str),
|
|
reg_magic == MAGIC_ALL);
|
|
br = regnode(BRANCH);
|
|
if (ret == NULL)
|
|
ret = br;
|
|
else
|
|
{
|
|
regtail(lastnode, br);
|
|
if (reg_toolong)
|
|
return NULL;
|
|
}
|
|
|
|
ungetchr();
|
|
one_exactly = TRUE;
|
|
lastnode = regatom(flagp);
|
|
one_exactly = FALSE;
|
|
if (lastnode == NULL)
|
|
return NULL;
|
|
}
|
|
if (ret == NULL)
|
|
EMSG2_RET_NULL(_(e_empty_str_brackets),
|
|
reg_magic == MAGIC_ALL);
|
|
lastbranch = regnode(BRANCH);
|
|
br = regnode(NOTHING);
|
|
if (ret != JUST_CALC_SIZE)
|
|
{
|
|
regtail(lastnode, br);
|
|
regtail(lastbranch, br);
|
|
// connect all branches to the NOTHING
|
|
// branch at the end
|
|
for (br = ret; br != lastnode; )
|
|
{
|
|
if (OP(br) == BRANCH)
|
|
{
|
|
regtail(br, lastbranch);
|
|
if (reg_toolong)
|
|
return NULL;
|
|
br = OPERAND(br);
|
|
}
|
|
else
|
|
br = regnext(br);
|
|
}
|
|
}
|
|
*flagp &= ~(HASWIDTH | SIMPLE);
|
|
break;
|
|
}
|
|
|
|
case 'd': // %d123 decimal
|
|
case 'o': // %o123 octal
|
|
case 'x': // %xab hex 2
|
|
case 'u': // %uabcd hex 4
|
|
case 'U': // %U1234abcd hex 8
|
|
{
|
|
long i;
|
|
|
|
switch (c)
|
|
{
|
|
case 'd': i = getdecchrs(); break;
|
|
case 'o': i = getoctchrs(); break;
|
|
case 'x': i = gethexchrs(2); break;
|
|
case 'u': i = gethexchrs(4); break;
|
|
case 'U': i = gethexchrs(8); break;
|
|
default: i = -1; break;
|
|
}
|
|
|
|
if (i < 0 || i > INT_MAX)
|
|
EMSG2_RET_NULL(
|
|
_(e_invalid_character_after_str_2),
|
|
reg_magic == MAGIC_ALL);
|
|
if (use_multibytecode(i))
|
|
ret = regnode(MULTIBYTECODE);
|
|
else
|
|
ret = regnode(EXACTLY);
|
|
if (i == 0)
|
|
regc(0x0a);
|
|
else
|
|
regmbc(i);
|
|
regc(NUL);
|
|
*flagp |= HASWIDTH;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
if (VIM_ISDIGIT(c) || c == '<' || c == '>'
|
|
|| c == '\'' || c == '.')
|
|
{
|
|
long_u n = 0;
|
|
int cmp;
|
|
int cur = FALSE;
|
|
int got_digit = FALSE;
|
|
|
|
cmp = c;
|
|
if (cmp == '<' || cmp == '>')
|
|
c = getchr();
|
|
if (no_Magic(c) == '.')
|
|
{
|
|
cur = TRUE;
|
|
c = getchr();
|
|
}
|
|
while (VIM_ISDIGIT(c))
|
|
{
|
|
got_digit = TRUE;
|
|
n = n * 10 + (c - '0');
|
|
c = getchr();
|
|
}
|
|
if (c == '\'' && n == 0)
|
|
{
|
|
// "\%'m", "\%<'m" and "\%>'m": Mark
|
|
c = getchr();
|
|
ret = regnode(RE_MARK);
|
|
if (ret == JUST_CALC_SIZE)
|
|
regsize += 2;
|
|
else
|
|
{
|
|
*regcode++ = c;
|
|
*regcode++ = cmp;
|
|
}
|
|
break;
|
|
}
|
|
else if ((c == 'l' || c == 'c' || c == 'v')
|
|
&& (cur || got_digit))
|
|
{
|
|
if (cur && n)
|
|
{
|
|
semsg(_(e_regexp_number_after_dot_pos_search_chr),
|
|
no_Magic(c));
|
|
rc_did_emsg = TRUE;
|
|
return NULL;
|
|
}
|
|
if (c == 'l')
|
|
{
|
|
if (cur)
|
|
n = curwin->w_cursor.lnum;
|
|
ret = regnode(RE_LNUM);
|
|
if (save_prev_at_start)
|
|
at_start = TRUE;
|
|
}
|
|
else if (c == 'c')
|
|
{
|
|
if (cur)
|
|
{
|
|
n = curwin->w_cursor.col;
|
|
n++;
|
|
}
|
|
ret = regnode(RE_COL);
|
|
}
|
|
else
|
|
{
|
|
if (cur)
|
|
{
|
|
colnr_T vcol = 0;
|
|
|
|
getvvcol(curwin, &curwin->w_cursor,
|
|
NULL, NULL, &vcol);
|
|
++vcol;
|
|
n = vcol;
|
|
}
|
|
ret = regnode(RE_VCOL);
|
|
}
|
|
if (ret == JUST_CALC_SIZE)
|
|
regsize += 5;
|
|
else
|
|
{
|
|
// put the number and the optional
|
|
// comparator after the opcode
|
|
regcode = re_put_long(regcode, n);
|
|
*regcode++ = cmp;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
EMSG2_RET_NULL(_(e_invalid_character_after_str),
|
|
reg_magic == MAGIC_ALL);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case Magic('['):
|
|
collection:
|
|
{
|
|
char_u *lp;
|
|
|
|
// If there is no matching ']', we assume the '[' is a normal
|
|
// character. This makes 'incsearch' and ":help [" work.
|
|
lp = skip_anyof(regparse);
|
|
if (*lp == ']') // there is a matching ']'
|
|
{
|
|
int startc = -1; // > 0 when next '-' is a range
|
|
int endc;
|
|
|
|
// In a character class, different parsing rules apply.
|
|
// Not even \ is special anymore, nothing is.
|
|
if (*regparse == '^') // Complement of range.
|
|
{
|
|
ret = regnode(ANYBUT + extra);
|
|
regparse++;
|
|
}
|
|
else
|
|
ret = regnode(ANYOF + extra);
|
|
|
|
// At the start ']' and '-' mean the literal character.
|
|
if (*regparse == ']' || *regparse == '-')
|
|
{
|
|
startc = *regparse;
|
|
regc(*regparse++);
|
|
}
|
|
|
|
while (*regparse != NUL && *regparse != ']')
|
|
{
|
|
if (*regparse == '-')
|
|
{
|
|
++regparse;
|
|
// The '-' is not used for a range at the end and
|
|
// after or before a '\n'.
|
|
if (*regparse == ']' || *regparse == NUL
|
|
|| startc == -1
|
|
|| (regparse[0] == '\\' && regparse[1] == 'n'))
|
|
{
|
|
regc('-');
|
|
startc = '-'; // [--x] is a range
|
|
}
|
|
else
|
|
{
|
|
// Also accept "a-[.z.]"
|
|
endc = 0;
|
|
if (*regparse == '[')
|
|
endc = get_coll_element(®parse);
|
|
if (endc == 0)
|
|
{
|
|
if (has_mbyte)
|
|
endc = mb_ptr2char_adv(®parse);
|
|
else
|
|
endc = *regparse++;
|
|
}
|
|
|
|
// Handle \o40, \x20 and \u20AC style sequences
|
|
if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl)
|
|
endc = coll_get_char();
|
|
|
|
if (startc > endc)
|
|
EMSG_RET_NULL(_(e_reverse_range_in_character_class));
|
|
if (has_mbyte && ((*mb_char2len)(startc) > 1
|
|
|| (*mb_char2len)(endc) > 1))
|
|
{
|
|
// Limit to a range of 256 chars.
|
|
if (endc > startc + 256)
|
|
EMSG_RET_NULL(_(e_range_too_large_in_character_class));
|
|
while (++startc <= endc)
|
|
regmbc(startc);
|
|
}
|
|
else
|
|
{
|
|
while (++startc <= endc)
|
|
regc(startc);
|
|
}
|
|
startc = -1;
|
|
}
|
|
}
|
|
// Only "\]", "\^", "\]" and "\\" are special in Vi. Vim
|
|
// accepts "\t", "\e", etc., but only when the 'l' flag in
|
|
// 'cpoptions' is not included.
|
|
// Posix doesn't recognize backslash at all.
|
|
else if (*regparse == '\\'
|
|
&& !reg_cpo_bsl
|
|
&& (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL
|
|
|| (!reg_cpo_lit
|
|
&& vim_strchr(REGEXP_ABBR,
|
|
regparse[1]) != NULL)))
|
|
{
|
|
regparse++;
|
|
if (*regparse == 'n')
|
|
{
|
|
// '\n' in range: also match NL
|
|
if (ret != JUST_CALC_SIZE)
|
|
{
|
|
// Using \n inside [^] does not change what
|
|
// matches. "[^\n]" is the same as ".".
|
|
if (*ret == ANYOF)
|
|
{
|
|
*ret = ANYOF + ADD_NL;
|
|
*flagp |= HASNL;
|
|
}
|
|
// else: must have had a \n already
|
|
}
|
|
regparse++;
|
|
startc = -1;
|
|
}
|
|
else if (*regparse == 'd'
|
|
|| *regparse == 'o'
|
|
|| *regparse == 'x'
|
|
|| *regparse == 'u'
|
|
|| *regparse == 'U')
|
|
{
|
|
startc = coll_get_char();
|
|
if (startc == 0)
|
|
regc(0x0a);
|
|
else
|
|
regmbc(startc);
|
|
}
|
|
else
|
|
{
|
|
startc = backslash_trans(*regparse++);
|
|
regc(startc);
|
|
}
|
|
}
|
|
else if (*regparse == '[')
|
|
{
|
|
int c_class;
|
|
int cu;
|
|
|
|
c_class = get_char_class(®parse);
|
|
startc = -1;
|
|
// Characters assumed to be 8 bits!
|
|
switch (c_class)
|
|
{
|
|
case CLASS_NONE:
|
|
c_class = get_equi_class(®parse);
|
|
if (c_class != 0)
|
|
{
|
|
// produce equivalence class
|
|
reg_equi_class(c_class);
|
|
}
|
|
else if ((c_class =
|
|
get_coll_element(®parse)) != 0)
|
|
{
|
|
// produce a collating element
|
|
regmbc(c_class);
|
|
}
|
|
else
|
|
{
|
|
// literal '[', allow [[-x] as a range
|
|
startc = *regparse++;
|
|
regc(startc);
|
|
}
|
|
break;
|
|
case CLASS_ALNUM:
|
|
for (cu = 1; cu < 128; cu++)
|
|
if (isalnum(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_ALPHA:
|
|
for (cu = 1; cu < 128; cu++)
|
|
if (isalpha(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_BLANK:
|
|
regc(' ');
|
|
regc('\t');
|
|
break;
|
|
case CLASS_CNTRL:
|
|
for (cu = 1; cu <= 127; cu++)
|
|
if (iscntrl(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_DIGIT:
|
|
for (cu = 1; cu <= 127; cu++)
|
|
if (VIM_ISDIGIT(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_GRAPH:
|
|
for (cu = 1; cu <= 127; cu++)
|
|
if (isgraph(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_LOWER:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (MB_ISLOWER(cu) && cu != 170
|
|
&& cu != 186)
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_PRINT:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (vim_isprintc(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_PUNCT:
|
|
for (cu = 1; cu < 128; cu++)
|
|
if (ispunct(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_SPACE:
|
|
for (cu = 9; cu <= 13; cu++)
|
|
regc(cu);
|
|
regc(' ');
|
|
break;
|
|
case CLASS_UPPER:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (MB_ISUPPER(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_XDIGIT:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (vim_isxdigit(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_TAB:
|
|
regc('\t');
|
|
break;
|
|
case CLASS_RETURN:
|
|
regc('\r');
|
|
break;
|
|
case CLASS_BACKSPACE:
|
|
regc('\b');
|
|
break;
|
|
case CLASS_ESCAPE:
|
|
regc('\033');
|
|
break;
|
|
case CLASS_IDENT:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (vim_isIDc(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_KEYWORD:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (reg_iswordc(cu))
|
|
regmbc(cu);
|
|
break;
|
|
case CLASS_FNAME:
|
|
for (cu = 1; cu <= 255; cu++)
|
|
if (vim_isfilec(cu))
|
|
regmbc(cu);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (has_mbyte)
|
|
{
|
|
int len;
|
|
|
|
// produce a multibyte character, including any
|
|
// following composing characters
|
|
startc = mb_ptr2char(regparse);
|
|
len = (*mb_ptr2len)(regparse);
|
|
if (enc_utf8 && utf_char2len(startc) != len)
|
|
startc = -1; // composing chars
|
|
while (--len >= 0)
|
|
regc(*regparse++);
|
|
}
|
|
else
|
|
{
|
|
startc = *regparse++;
|
|
regc(startc);
|
|
}
|
|
}
|
|
}
|
|
regc(NUL);
|
|
prevchr_len = 1; // last char was the ']'
|
|
if (*regparse != ']')
|
|
EMSG_RET_NULL(_(e_too_many_brackets)); // Cannot happen?
|
|
skipchr(); // let's be friends with the lexer again
|
|
*flagp |= HASWIDTH | SIMPLE;
|
|
break;
|
|
}
|
|
else if (reg_strict)
|
|
EMSG2_RET_NULL(_(e_missing_rsb_after_str_lsb),
|
|
reg_magic > MAGIC_OFF);
|
|
}
|
|
// FALLTHROUGH
|
|
|
|
default:
|
|
{
|
|
int len;
|
|
|
|
// A multi-byte character is handled as a separate atom if it's
|
|
// before a multi and when it's a composing char.
|
|
if (use_multibytecode(c))
|
|
{
|
|
do_multibyte:
|
|
ret = regnode(MULTIBYTECODE);
|
|
regmbc(c);
|
|
*flagp |= HASWIDTH | SIMPLE;
|
|
break;
|
|
}
|
|
|
|
ret = regnode(EXACTLY);
|
|
|
|
// Append characters as long as:
|
|
// - there is no following multi, we then need the character in
|
|
// front of it as a single character operand
|
|
// - not running into a Magic character
|
|
// - "one_exactly" is not set
|
|
// But always emit at least one character. Might be a Multi,
|
|
// e.g., a "[" without matching "]".
|
|
for (len = 0; c != NUL && (len == 0
|
|
|| (re_multi_type(peekchr()) == NOT_MULTI
|
|
&& !one_exactly
|
|
&& !is_Magic(c))); ++len)
|
|
{
|
|
c = no_Magic(c);
|
|
if (has_mbyte)
|
|
{
|
|
regmbc(c);
|
|
if (enc_utf8)
|
|
{
|
|
int l;
|
|
|
|
// Need to get composing character too.
|
|
for (;;)
|
|
{
|
|
l = utf_ptr2len(regparse);
|
|
if (!UTF_COMPOSINGLIKE(regparse, regparse + l))
|
|
break;
|
|
regmbc(utf_ptr2char(regparse));
|
|
skipchr();
|
|
}
|
|
}
|
|
}
|
|
else
|
|
regc(c);
|
|
c = getchr();
|
|
}
|
|
ungetchr();
|
|
|
|
regc(NUL);
|
|
*flagp |= HASWIDTH;
|
|
if (len == 1)
|
|
*flagp |= SIMPLE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Parse something followed by possible [*+=].
|
|
*
|
|
* Note that the branching code sequences used for = and the general cases
|
|
* of * and + are somewhat optimized: they use the same NOTHING node as
|
|
* both the endmarker for their branch list and the body of the last branch.
|
|
* It might seem that this node could be dispensed with entirely, but the
|
|
* endmarker role is not redundant.
|
|
*/
|
|
static char_u *
|
|
regpiece(int *flagp)
|
|
{
|
|
char_u *ret;
|
|
int op;
|
|
char_u *next;
|
|
int flags;
|
|
long minval;
|
|
long maxval;
|
|
|
|
ret = regatom(&flags);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
|
|
op = peekchr();
|
|
if (re_multi_type(op) == NOT_MULTI)
|
|
{
|
|
*flagp = flags;
|
|
return ret;
|
|
}
|
|
// default flags
|
|
*flagp = (WORST | SPSTART | (flags & (HASNL | HASLOOKBH)));
|
|
|
|
skipchr();
|
|
switch (op)
|
|
{
|
|
case Magic('*'):
|
|
if (flags & SIMPLE)
|
|
reginsert(STAR, ret);
|
|
else
|
|
{
|
|
// Emit x* as (x&|), where & means "self".
|
|
reginsert(BRANCH, ret); // Either x
|
|
regoptail(ret, regnode(BACK)); // and loop
|
|
regoptail(ret, ret); // back
|
|
regtail(ret, regnode(BRANCH)); // or
|
|
regtail(ret, regnode(NOTHING)); // null.
|
|
}
|
|
break;
|
|
|
|
case Magic('+'):
|
|
if (flags & SIMPLE)
|
|
reginsert(PLUS, ret);
|
|
else
|
|
{
|
|
// Emit x+ as x(&|), where & means "self".
|
|
next = regnode(BRANCH); // Either
|
|
regtail(ret, next);
|
|
regtail(regnode(BACK), ret); // loop back
|
|
regtail(next, regnode(BRANCH)); // or
|
|
regtail(ret, regnode(NOTHING)); // null.
|
|
}
|
|
*flagp = (WORST | HASWIDTH | (flags & (HASNL | HASLOOKBH)));
|
|
break;
|
|
|
|
case Magic('@'):
|
|
{
|
|
int lop = END;
|
|
long nr;
|
|
|
|
nr = getdecchrs();
|
|
switch (no_Magic(getchr()))
|
|
{
|
|
case '=': lop = MATCH; break; // \@=
|
|
case '!': lop = NOMATCH; break; // \@!
|
|
case '>': lop = SUBPAT; break; // \@>
|
|
case '<': switch (no_Magic(getchr()))
|
|
{
|
|
case '=': lop = BEHIND; break; // \@<=
|
|
case '!': lop = NOBEHIND; break; // \@<!
|
|
}
|
|
}
|
|
if (lop == END)
|
|
EMSG2_RET_NULL(_(e_invalid_character_after_str_at),
|
|
reg_magic == MAGIC_ALL);
|
|
// Look behind must match with behind_pos.
|
|
if (lop == BEHIND || lop == NOBEHIND)
|
|
{
|
|
regtail(ret, regnode(BHPOS));
|
|
*flagp |= HASLOOKBH;
|
|
}
|
|
regtail(ret, regnode(END)); // operand ends
|
|
if (lop == BEHIND || lop == NOBEHIND)
|
|
{
|
|
if (nr < 0)
|
|
nr = 0; // no limit is same as zero limit
|
|
reginsert_nr(lop, nr, ret);
|
|
}
|
|
else
|
|
reginsert(lop, ret);
|
|
break;
|
|
}
|
|
|
|
case Magic('?'):
|
|
case Magic('='):
|
|
// Emit x= as (x|)
|
|
reginsert(BRANCH, ret); // Either x
|
|
regtail(ret, regnode(BRANCH)); // or
|
|
next = regnode(NOTHING); // null.
|
|
regtail(ret, next);
|
|
regoptail(ret, next);
|
|
break;
|
|
|
|
case Magic('{'):
|
|
if (!read_limits(&minval, &maxval))
|
|
return NULL;
|
|
if (flags & SIMPLE)
|
|
{
|
|
reginsert(BRACE_SIMPLE, ret);
|
|
reginsert_limits(BRACE_LIMITS, minval, maxval, ret);
|
|
}
|
|
else
|
|
{
|
|
if (num_complex_braces >= 10)
|
|
EMSG2_RET_NULL(_(e_too_many_complex_str_curly),
|
|
reg_magic == MAGIC_ALL);
|
|
reginsert(BRACE_COMPLEX + num_complex_braces, ret);
|
|
regoptail(ret, regnode(BACK));
|
|
regoptail(ret, ret);
|
|
reginsert_limits(BRACE_LIMITS, minval, maxval, ret);
|
|
++num_complex_braces;
|
|
}
|
|
if (minval > 0 && maxval > 0)
|
|
*flagp = (HASWIDTH | (flags & (HASNL | HASLOOKBH)));
|
|
break;
|
|
}
|
|
if (re_multi_type(peekchr()) != NOT_MULTI)
|
|
{
|
|
// Can't have a multi follow a multi.
|
|
if (peekchr() == Magic('*'))
|
|
EMSG2_RET_NULL(_(e_nested_str), reg_magic >= MAGIC_ON);
|
|
EMSG3_RET_NULL(_(e_nested_str_chr), reg_magic == MAGIC_ALL,
|
|
no_Magic(peekchr()));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Parse one alternative of an | or & operator.
|
|
* Implements the concatenation operator.
|
|
*/
|
|
static char_u *
|
|
regconcat(int *flagp)
|
|
{
|
|
char_u *first = NULL;
|
|
char_u *chain = NULL;
|
|
char_u *latest;
|
|
int flags;
|
|
int cont = TRUE;
|
|
|
|
*flagp = WORST; // Tentatively.
|
|
|
|
while (cont)
|
|
{
|
|
switch (peekchr())
|
|
{
|
|
case NUL:
|
|
case Magic('|'):
|
|
case Magic('&'):
|
|
case Magic(')'):
|
|
cont = FALSE;
|
|
break;
|
|
case Magic('Z'):
|
|
regflags |= RF_ICOMBINE;
|
|
skipchr_keepstart();
|
|
break;
|
|
case Magic('c'):
|
|
regflags |= RF_ICASE;
|
|
skipchr_keepstart();
|
|
break;
|
|
case Magic('C'):
|
|
regflags |= RF_NOICASE;
|
|
skipchr_keepstart();
|
|
break;
|
|
case Magic('v'):
|
|
reg_magic = MAGIC_ALL;
|
|
skipchr_keepstart();
|
|
curchr = -1;
|
|
break;
|
|
case Magic('m'):
|
|
reg_magic = MAGIC_ON;
|
|
skipchr_keepstart();
|
|
curchr = -1;
|
|
break;
|
|
case Magic('M'):
|
|
reg_magic = MAGIC_OFF;
|
|
skipchr_keepstart();
|
|
curchr = -1;
|
|
break;
|
|
case Magic('V'):
|
|
reg_magic = MAGIC_NONE;
|
|
skipchr_keepstart();
|
|
curchr = -1;
|
|
break;
|
|
default:
|
|
latest = regpiece(&flags);
|
|
if (latest == NULL || reg_toolong)
|
|
return NULL;
|
|
*flagp |= flags & (HASWIDTH | HASNL | HASLOOKBH);
|
|
if (chain == NULL) // First piece.
|
|
*flagp |= flags & SPSTART;
|
|
else
|
|
regtail(chain, latest);
|
|
chain = latest;
|
|
if (first == NULL)
|
|
first = latest;
|
|
break;
|
|
}
|
|
}
|
|
if (first == NULL) // Loop ran zero times.
|
|
first = regnode(NOTHING);
|
|
return first;
|
|
}
|
|
|
|
/*
|
|
* Parse one alternative of an | operator.
|
|
* Implements the & operator.
|
|
*/
|
|
static char_u *
|
|
regbranch(int *flagp)
|
|
{
|
|
char_u *ret;
|
|
char_u *chain = NULL;
|
|
char_u *latest;
|
|
int flags;
|
|
|
|
*flagp = WORST | HASNL; // Tentatively.
|
|
|
|
ret = regnode(BRANCH);
|
|
for (;;)
|
|
{
|
|
latest = regconcat(&flags);
|
|
if (latest == NULL)
|
|
return NULL;
|
|
// If one of the branches has width, the whole thing has. If one of
|
|
// the branches anchors at start-of-line, the whole thing does.
|
|
// If one of the branches uses look-behind, the whole thing does.
|
|
*flagp |= flags & (HASWIDTH | SPSTART | HASLOOKBH);
|
|
// If one of the branches doesn't match a line-break, the whole thing
|
|
// doesn't.
|
|
*flagp &= ~HASNL | (flags & HASNL);
|
|
if (chain != NULL)
|
|
regtail(chain, latest);
|
|
if (peekchr() != Magic('&'))
|
|
break;
|
|
skipchr();
|
|
regtail(latest, regnode(END)); // operand ends
|
|
if (reg_toolong)
|
|
break;
|
|
reginsert(MATCH, latest);
|
|
chain = latest;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Parse regular expression, i.e. main body or parenthesized thing.
|
|
*
|
|
* Caller must absorb opening parenthesis.
|
|
*
|
|
* Combining parenthesis handling with the base level of regular expression
|
|
* is a trifle forced, but the need to tie the tails of the branches to what
|
|
* follows makes it hard to avoid.
|
|
*/
|
|
static char_u *
|
|
reg(
|
|
int paren, // REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN
|
|
int *flagp)
|
|
{
|
|
char_u *ret;
|
|
char_u *br;
|
|
char_u *ender;
|
|
int parno = 0;
|
|
int flags;
|
|
|
|
*flagp = HASWIDTH; // Tentatively.
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
if (paren == REG_ZPAREN)
|
|
{
|
|
// Make a ZOPEN node.
|
|
if (regnzpar >= NSUBEXP)
|
|
EMSG_RET_NULL(_(e_too_many_z));
|
|
parno = regnzpar;
|
|
regnzpar++;
|
|
ret = regnode(ZOPEN + parno);
|
|
}
|
|
else
|
|
#endif
|
|
if (paren == REG_PAREN)
|
|
{
|
|
// Make a MOPEN node.
|
|
if (regnpar >= NSUBEXP)
|
|
EMSG2_RET_NULL(_(e_too_many_str_open), reg_magic == MAGIC_ALL);
|
|
parno = regnpar;
|
|
++regnpar;
|
|
ret = regnode(MOPEN + parno);
|
|
}
|
|
else if (paren == REG_NPAREN)
|
|
{
|
|
// Make a NOPEN node.
|
|
ret = regnode(NOPEN);
|
|
}
|
|
else
|
|
ret = NULL;
|
|
|
|
// Pick up the branches, linking them together.
|
|
br = regbranch(&flags);
|
|
if (br == NULL)
|
|
return NULL;
|
|
if (ret != NULL)
|
|
regtail(ret, br); // [MZ]OPEN -> first.
|
|
else
|
|
ret = br;
|
|
// If one of the branches can be zero-width, the whole thing can.
|
|
// If one of the branches has * at start or matches a line-break, the
|
|
// whole thing can.
|
|
if (!(flags & HASWIDTH))
|
|
*flagp &= ~HASWIDTH;
|
|
*flagp |= flags & (SPSTART | HASNL | HASLOOKBH);
|
|
while (peekchr() == Magic('|'))
|
|
{
|
|
skipchr();
|
|
br = regbranch(&flags);
|
|
if (br == NULL || reg_toolong)
|
|
return NULL;
|
|
regtail(ret, br); // BRANCH -> BRANCH.
|
|
if (!(flags & HASWIDTH))
|
|
*flagp &= ~HASWIDTH;
|
|
*flagp |= flags & (SPSTART | HASNL | HASLOOKBH);
|
|
}
|
|
|
|
// Make a closing node, and hook it on the end.
|
|
ender = regnode(
|
|
#ifdef FEAT_SYN_HL
|
|
paren == REG_ZPAREN ? ZCLOSE + parno :
|
|
#endif
|
|
paren == REG_PAREN ? MCLOSE + parno :
|
|
paren == REG_NPAREN ? NCLOSE : END);
|
|
regtail(ret, ender);
|
|
|
|
// Hook the tails of the branches to the closing node.
|
|
for (br = ret; br != NULL; br = regnext(br))
|
|
regoptail(br, ender);
|
|
|
|
// Check for proper termination.
|
|
if (paren != REG_NOPAREN && getchr() != Magic(')'))
|
|
{
|
|
#ifdef FEAT_SYN_HL
|
|
if (paren == REG_ZPAREN)
|
|
EMSG_RET_NULL(_(e_unmatched_z));
|
|
else
|
|
#endif
|
|
if (paren == REG_NPAREN)
|
|
EMSG2_RET_NULL(_(e_unmatched_str_percent_open), reg_magic == MAGIC_ALL);
|
|
else
|
|
EMSG2_RET_NULL(_(e_unmatched_str_open), reg_magic == MAGIC_ALL);
|
|
}
|
|
else if (paren == REG_NOPAREN && peekchr() != NUL)
|
|
{
|
|
if (curchr == Magic(')'))
|
|
EMSG2_RET_NULL(_(e_unmatched_str_close), reg_magic == MAGIC_ALL);
|
|
else
|
|
EMSG_RET_NULL(_(e_trailing_characters)); // "Can't happen".
|
|
// NOTREACHED
|
|
}
|
|
// Here we set the flag allowing back references to this set of
|
|
// parentheses.
|
|
if (paren == REG_PAREN)
|
|
had_endbrace[parno] = TRUE; // have seen the close paren
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* bt_regcomp() - compile a regular expression into internal code for the
|
|
* traditional back track matcher.
|
|
* Returns the program in allocated space. Returns NULL for an error.
|
|
*
|
|
* We can't allocate space until we know how big the compiled form will be,
|
|
* but we can't compile it (and thus know how big it is) until we've got a
|
|
* place to put the code. So we cheat: we compile it twice, once with code
|
|
* generation turned off and size counting turned on, and once "for real".
|
|
* This also means that we don't allocate space until we are sure that the
|
|
* thing really will compile successfully, and we never have to move the
|
|
* code and thus invalidate pointers into it. (Note that it has to be in
|
|
* one piece because vim_free() must be able to free it all.)
|
|
*
|
|
* Whether upper/lower case is to be ignored is decided when executing the
|
|
* program, it does not matter here.
|
|
*
|
|
* Beware that the optimization-preparation code in here knows about some
|
|
* of the structure of the compiled regexp.
|
|
* "re_flags": RE_MAGIC and/or RE_STRING.
|
|
*/
|
|
static regprog_T *
|
|
bt_regcomp(char_u *expr, int re_flags)
|
|
{
|
|
bt_regprog_T *r;
|
|
char_u *scan;
|
|
char_u *longest;
|
|
int len;
|
|
int flags;
|
|
|
|
if (expr == NULL)
|
|
IEMSG_RET_NULL(e_null_argument);
|
|
|
|
init_class_tab();
|
|
|
|
// First pass: determine size, legality.
|
|
regcomp_start(expr, re_flags);
|
|
regcode = JUST_CALC_SIZE;
|
|
regc(REGMAGIC);
|
|
if (reg(REG_NOPAREN, &flags) == NULL)
|
|
return NULL;
|
|
|
|
// Allocate space.
|
|
r = alloc(offsetof(bt_regprog_T, program) + regsize);
|
|
if (r == NULL)
|
|
return NULL;
|
|
r->re_in_use = FALSE;
|
|
|
|
// Second pass: emit code.
|
|
regcomp_start(expr, re_flags);
|
|
regcode = r->program;
|
|
regc(REGMAGIC);
|
|
if (reg(REG_NOPAREN, &flags) == NULL || reg_toolong)
|
|
{
|
|
vim_free(r);
|
|
if (reg_toolong)
|
|
EMSG_RET_NULL(_(e_pattern_too_long));
|
|
return NULL;
|
|
}
|
|
|
|
// Dig out information for optimizations.
|
|
r->regstart = NUL; // Worst-case defaults.
|
|
r->reganch = 0;
|
|
r->regmust = NULL;
|
|
r->regmlen = 0;
|
|
r->regflags = regflags;
|
|
if (flags & HASNL)
|
|
r->regflags |= RF_HASNL;
|
|
if (flags & HASLOOKBH)
|
|
r->regflags |= RF_LOOKBH;
|
|
#ifdef FEAT_SYN_HL
|
|
// Remember whether this pattern has any \z specials in it.
|
|
r->reghasz = re_has_z;
|
|
#endif
|
|
scan = r->program + 1; // First BRANCH.
|
|
if (OP(regnext(scan)) == END) // Only one top-level choice.
|
|
{
|
|
scan = OPERAND(scan);
|
|
|
|
// Starting-point info.
|
|
if (OP(scan) == BOL || OP(scan) == RE_BOF)
|
|
{
|
|
r->reganch++;
|
|
scan = regnext(scan);
|
|
}
|
|
|
|
if (OP(scan) == EXACTLY)
|
|
{
|
|
if (has_mbyte)
|
|
r->regstart = (*mb_ptr2char)(OPERAND(scan));
|
|
else
|
|
r->regstart = *OPERAND(scan);
|
|
}
|
|
else if ((OP(scan) == BOW
|
|
|| OP(scan) == EOW
|
|
|| OP(scan) == NOTHING
|
|
|| OP(scan) == MOPEN + 0 || OP(scan) == NOPEN
|
|
|| OP(scan) == MCLOSE + 0 || OP(scan) == NCLOSE)
|
|
&& OP(regnext(scan)) == EXACTLY)
|
|
{
|
|
if (has_mbyte)
|
|
r->regstart = (*mb_ptr2char)(OPERAND(regnext(scan)));
|
|
else
|
|
r->regstart = *OPERAND(regnext(scan));
|
|
}
|
|
|
|
// If there's something expensive in the r.e., find the longest
|
|
// literal string that must appear and make it the regmust. Resolve
|
|
// ties in favor of later strings, since the regstart check works
|
|
// with the beginning of the r.e. and avoiding duplication
|
|
// strengthens checking. Not a strong reason, but sufficient in the
|
|
// absence of others.
|
|
|
|
// When the r.e. starts with BOW, it is faster to look for a regmust
|
|
// first. Used a lot for "#" and "*" commands. (Added by mool).
|
|
if ((flags & SPSTART || OP(scan) == BOW || OP(scan) == EOW)
|
|
&& !(flags & HASNL))
|
|
{
|
|
longest = NULL;
|
|
len = 0;
|
|
for (; scan != NULL; scan = regnext(scan))
|
|
if (OP(scan) == EXACTLY && STRLEN(OPERAND(scan)) >= (size_t)len)
|
|
{
|
|
longest = OPERAND(scan);
|
|
len = (int)STRLEN(OPERAND(scan));
|
|
}
|
|
r->regmust = longest;
|
|
r->regmlen = len;
|
|
}
|
|
}
|
|
#ifdef BT_REGEXP_DUMP
|
|
regdump(expr, r);
|
|
#endif
|
|
r->engine = &bt_regengine;
|
|
return (regprog_T *)r;
|
|
}
|
|
|
|
#if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
/*
|
|
* Check if during the previous call to vim_regcomp the EOL item "$" has been
|
|
* found. This is messy, but it works fine.
|
|
*/
|
|
int
|
|
vim_regcomp_had_eol(void)
|
|
{
|
|
return had_eol;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Get a number after a backslash that is inside [].
|
|
* When nothing is recognized return a backslash.
|
|
*/
|
|
static int
|
|
coll_get_char(void)
|
|
{
|
|
long nr = -1;
|
|
|
|
switch (*regparse++)
|
|
{
|
|
case 'd': nr = getdecchrs(); break;
|
|
case 'o': nr = getoctchrs(); break;
|
|
case 'x': nr = gethexchrs(2); break;
|
|
case 'u': nr = gethexchrs(4); break;
|
|
case 'U': nr = gethexchrs(8); break;
|
|
}
|
|
if (nr < 0 || nr > INT_MAX)
|
|
{
|
|
// If getting the number fails be backwards compatible: the character
|
|
// is a backslash.
|
|
--regparse;
|
|
nr = '\\';
|
|
}
|
|
return nr;
|
|
}
|
|
|
|
/*
|
|
* Free a compiled regexp program, returned by bt_regcomp().
|
|
*/
|
|
static void
|
|
bt_regfree(regprog_T *prog)
|
|
{
|
|
vim_free(prog);
|
|
}
|
|
|
|
#define ADVANCE_REGINPUT() MB_PTR_ADV(rex.input)
|
|
|
|
/*
|
|
* The arguments from BRACE_LIMITS are stored here. They are actually local
|
|
* to regmatch(), but they are here to reduce the amount of stack space used
|
|
* (it can be called recursively many times).
|
|
*/
|
|
static long bl_minval;
|
|
static long bl_maxval;
|
|
|
|
/*
|
|
* Save the input line and position in a regsave_T.
|
|
*/
|
|
static void
|
|
reg_save(regsave_T *save, garray_T *gap)
|
|
{
|
|
if (REG_MULTI)
|
|
{
|
|
save->rs_u.pos.col = (colnr_T)(rex.input - rex.line);
|
|
save->rs_u.pos.lnum = rex.lnum;
|
|
}
|
|
else
|
|
save->rs_u.ptr = rex.input;
|
|
save->rs_len = gap->ga_len;
|
|
}
|
|
|
|
/*
|
|
* Restore the input line and position from a regsave_T.
|
|
*/
|
|
static void
|
|
reg_restore(regsave_T *save, garray_T *gap)
|
|
{
|
|
if (REG_MULTI)
|
|
{
|
|
if (rex.lnum != save->rs_u.pos.lnum)
|
|
{
|
|
// only call reg_getline() when the line number changed to save
|
|
// a bit of time
|
|
rex.lnum = save->rs_u.pos.lnum;
|
|
rex.line = reg_getline(rex.lnum);
|
|
}
|
|
rex.input = rex.line + save->rs_u.pos.col;
|
|
}
|
|
else
|
|
rex.input = save->rs_u.ptr;
|
|
gap->ga_len = save->rs_len;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if current position is equal to saved position.
|
|
*/
|
|
static int
|
|
reg_save_equal(regsave_T *save)
|
|
{
|
|
if (REG_MULTI)
|
|
return rex.lnum == save->rs_u.pos.lnum
|
|
&& rex.input == rex.line + save->rs_u.pos.col;
|
|
return rex.input == save->rs_u.ptr;
|
|
}
|
|
|
|
// Save the sub-expressions before attempting a match.
|
|
#define save_se(savep, posp, pp) \
|
|
REG_MULTI ? save_se_multi((savep), (posp)) : save_se_one((savep), (pp))
|
|
|
|
// After a failed match restore the sub-expressions.
|
|
#define restore_se(savep, posp, pp) \
|
|
{ \
|
|
if (REG_MULTI) \
|
|
*(posp) = (savep)->se_u.pos; \
|
|
else \
|
|
*(pp) = (savep)->se_u.ptr; \
|
|
}
|
|
|
|
/*
|
|
* Tentatively set the sub-expression start to the current position (after
|
|
* calling regmatch() they will have changed). Need to save the existing
|
|
* values for when there is no match.
|
|
* Use se_save() to use pointer (save_se_multi()) or position (save_se_one()),
|
|
* depending on REG_MULTI.
|
|
*/
|
|
static void
|
|
save_se_multi(save_se_T *savep, lpos_T *posp)
|
|
{
|
|
savep->se_u.pos = *posp;
|
|
posp->lnum = rex.lnum;
|
|
posp->col = (colnr_T)(rex.input - rex.line);
|
|
}
|
|
|
|
static void
|
|
save_se_one(save_se_T *savep, char_u **pp)
|
|
{
|
|
savep->se_u.ptr = *pp;
|
|
*pp = rex.input;
|
|
}
|
|
|
|
/*
|
|
* regrepeat - repeatedly match something simple, return how many.
|
|
* Advances rex.input (and rex.lnum) to just after the matched chars.
|
|
*/
|
|
static int
|
|
regrepeat(
|
|
char_u *p,
|
|
long maxcount) // maximum number of matches allowed
|
|
{
|
|
long count = 0;
|
|
char_u *scan;
|
|
char_u *opnd;
|
|
int mask;
|
|
int testval = 0;
|
|
|
|
scan = rex.input; // Make local copy of rex.input for speed.
|
|
opnd = OPERAND(p);
|
|
switch (OP(p))
|
|
{
|
|
case ANY:
|
|
case ANY + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
// Matching anything means we continue until end-of-line (or
|
|
// end-of-file for ANY + ADD_NL), only limited by maxcount.
|
|
while (*scan != NUL && count < maxcount)
|
|
{
|
|
++count;
|
|
MB_PTR_ADV(scan);
|
|
}
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr || count == maxcount)
|
|
break;
|
|
++count; // count the line-break
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case IDENT:
|
|
case IDENT + ADD_NL:
|
|
testval = TRUE;
|
|
// FALLTHROUGH
|
|
case SIDENT:
|
|
case SIDENT + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan)))
|
|
{
|
|
MB_PTR_ADV(scan);
|
|
}
|
|
else if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else
|
|
break;
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case KWORD:
|
|
case KWORD + ADD_NL:
|
|
testval = TRUE;
|
|
// FALLTHROUGH
|
|
case SKWORD:
|
|
case SKWORD + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
if (vim_iswordp_buf(scan, rex.reg_buf)
|
|
&& (testval || !VIM_ISDIGIT(*scan)))
|
|
{
|
|
MB_PTR_ADV(scan);
|
|
}
|
|
else if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else
|
|
break;
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case FNAME:
|
|
case FNAME + ADD_NL:
|
|
testval = TRUE;
|
|
// FALLTHROUGH
|
|
case SFNAME:
|
|
case SFNAME + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan)))
|
|
{
|
|
MB_PTR_ADV(scan);
|
|
}
|
|
else if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else
|
|
break;
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case PRINT:
|
|
case PRINT + ADD_NL:
|
|
testval = TRUE;
|
|
// FALLTHROUGH
|
|
case SPRINT:
|
|
case SPRINT + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (vim_isprintc(PTR2CHAR(scan)) == 1
|
|
&& (testval || !VIM_ISDIGIT(*scan)))
|
|
{
|
|
MB_PTR_ADV(scan);
|
|
}
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else
|
|
break;
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case WHITE:
|
|
case WHITE + ADD_NL:
|
|
testval = mask = RI_WHITE;
|
|
do_class:
|
|
while (count < maxcount)
|
|
{
|
|
int l;
|
|
|
|
if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (has_mbyte && (l = (*mb_ptr2len)(scan)) > 1)
|
|
{
|
|
if (testval != 0)
|
|
break;
|
|
scan += l;
|
|
}
|
|
else if ((class_tab[*scan] & mask) == testval)
|
|
++scan;
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else
|
|
break;
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case NWHITE:
|
|
case NWHITE + ADD_NL:
|
|
mask = RI_WHITE;
|
|
goto do_class;
|
|
case DIGIT:
|
|
case DIGIT + ADD_NL:
|
|
testval = mask = RI_DIGIT;
|
|
goto do_class;
|
|
case NDIGIT:
|
|
case NDIGIT + ADD_NL:
|
|
mask = RI_DIGIT;
|
|
goto do_class;
|
|
case HEX:
|
|
case HEX + ADD_NL:
|
|
testval = mask = RI_HEX;
|
|
goto do_class;
|
|
case NHEX:
|
|
case NHEX + ADD_NL:
|
|
mask = RI_HEX;
|
|
goto do_class;
|
|
case OCTAL:
|
|
case OCTAL + ADD_NL:
|
|
testval = mask = RI_OCTAL;
|
|
goto do_class;
|
|
case NOCTAL:
|
|
case NOCTAL + ADD_NL:
|
|
mask = RI_OCTAL;
|
|
goto do_class;
|
|
case WORD:
|
|
case WORD + ADD_NL:
|
|
testval = mask = RI_WORD;
|
|
goto do_class;
|
|
case NWORD:
|
|
case NWORD + ADD_NL:
|
|
mask = RI_WORD;
|
|
goto do_class;
|
|
case HEAD:
|
|
case HEAD + ADD_NL:
|
|
testval = mask = RI_HEAD;
|
|
goto do_class;
|
|
case NHEAD:
|
|
case NHEAD + ADD_NL:
|
|
mask = RI_HEAD;
|
|
goto do_class;
|
|
case ALPHA:
|
|
case ALPHA + ADD_NL:
|
|
testval = mask = RI_ALPHA;
|
|
goto do_class;
|
|
case NALPHA:
|
|
case NALPHA + ADD_NL:
|
|
mask = RI_ALPHA;
|
|
goto do_class;
|
|
case LOWER:
|
|
case LOWER + ADD_NL:
|
|
testval = mask = RI_LOWER;
|
|
goto do_class;
|
|
case NLOWER:
|
|
case NLOWER + ADD_NL:
|
|
mask = RI_LOWER;
|
|
goto do_class;
|
|
case UPPER:
|
|
case UPPER + ADD_NL:
|
|
testval = mask = RI_UPPER;
|
|
goto do_class;
|
|
case NUPPER:
|
|
case NUPPER + ADD_NL:
|
|
mask = RI_UPPER;
|
|
goto do_class;
|
|
|
|
case EXACTLY:
|
|
{
|
|
int cu, cl;
|
|
|
|
// This doesn't do a multi-byte character, because a MULTIBYTECODE
|
|
// would have been used for it. It does handle single-byte
|
|
// characters, such as latin1.
|
|
if (rex.reg_ic)
|
|
{
|
|
cu = MB_TOUPPER(*opnd);
|
|
cl = MB_TOLOWER(*opnd);
|
|
while (count < maxcount && (*scan == cu || *scan == cl))
|
|
{
|
|
count++;
|
|
scan++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
cu = *opnd;
|
|
while (count < maxcount && *scan == cu)
|
|
{
|
|
count++;
|
|
scan++;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MULTIBYTECODE:
|
|
{
|
|
int i, len, cf = 0;
|
|
|
|
// Safety check (just in case 'encoding' was changed since
|
|
// compiling the program).
|
|
if ((len = (*mb_ptr2len)(opnd)) > 1)
|
|
{
|
|
if (rex.reg_ic && enc_utf8)
|
|
cf = utf_fold(utf_ptr2char(opnd));
|
|
while (count < maxcount && (*mb_ptr2len)(scan) >= len)
|
|
{
|
|
for (i = 0; i < len; ++i)
|
|
if (opnd[i] != scan[i])
|
|
break;
|
|
if (i < len && (!rex.reg_ic || !enc_utf8
|
|
|| utf_fold(utf_ptr2char(scan)) != cf))
|
|
break;
|
|
scan += len;
|
|
++count;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ANYOF:
|
|
case ANYOF + ADD_NL:
|
|
testval = TRUE;
|
|
// FALLTHROUGH
|
|
|
|
case ANYBUT:
|
|
case ANYBUT + ADD_NL:
|
|
while (count < maxcount)
|
|
{
|
|
int len;
|
|
|
|
if (*scan == NUL)
|
|
{
|
|
if (!REG_MULTI || !WITH_NL(OP(p)) || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
break;
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
|
|
++scan;
|
|
else if (has_mbyte && (len = (*mb_ptr2len)(scan)) > 1)
|
|
{
|
|
if ((cstrchr(opnd, (*mb_ptr2char)(scan)) == NULL) == testval)
|
|
break;
|
|
scan += len;
|
|
}
|
|
else
|
|
{
|
|
if ((cstrchr(opnd, *scan) == NULL) == testval)
|
|
break;
|
|
++scan;
|
|
}
|
|
++count;
|
|
}
|
|
break;
|
|
|
|
case NEWL:
|
|
while (count < maxcount
|
|
&& ((*scan == NUL && rex.lnum <= rex.reg_maxline
|
|
&& !rex.reg_line_lbr && REG_MULTI)
|
|
|| (*scan == '\n' && rex.reg_line_lbr)))
|
|
{
|
|
count++;
|
|
if (rex.reg_line_lbr)
|
|
ADVANCE_REGINPUT();
|
|
else
|
|
reg_nextline();
|
|
scan = rex.input;
|
|
if (got_int)
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default: // Oh dear. Called inappropriately.
|
|
iemsg(e_corrupted_regexp_program);
|
|
#ifdef DEBUG
|
|
printf("Called regrepeat with op code %d\n", OP(p));
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
rex.input = scan;
|
|
|
|
return (int)count;
|
|
}
|
|
|
|
/*
|
|
* Push an item onto the regstack.
|
|
* Returns pointer to new item. Returns NULL when out of memory.
|
|
*/
|
|
static regitem_T *
|
|
regstack_push(regstate_T state, char_u *scan)
|
|
{
|
|
regitem_T *rp;
|
|
|
|
if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp)
|
|
{
|
|
emsg(_(e_pattern_uses_more_memory_than_maxmempattern));
|
|
return NULL;
|
|
}
|
|
if (ga_grow(®stack, sizeof(regitem_T)) == FAIL)
|
|
return NULL;
|
|
|
|
rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len);
|
|
rp->rs_state = state;
|
|
rp->rs_scan = scan;
|
|
|
|
regstack.ga_len += sizeof(regitem_T);
|
|
return rp;
|
|
}
|
|
|
|
/*
|
|
* Pop an item from the regstack.
|
|
*/
|
|
static void
|
|
regstack_pop(char_u **scan)
|
|
{
|
|
regitem_T *rp;
|
|
|
|
rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1;
|
|
*scan = rp->rs_scan;
|
|
|
|
regstack.ga_len -= sizeof(regitem_T);
|
|
}
|
|
|
|
#ifdef FEAT_RELTIME
|
|
/*
|
|
* Check if the timer expired, return TRUE if so.
|
|
*/
|
|
static int
|
|
bt_did_time_out(int *timed_out)
|
|
{
|
|
if (*timeout_flag)
|
|
{
|
|
if (timed_out != NULL)
|
|
{
|
|
# ifdef FEAT_EVAL
|
|
if (!*timed_out)
|
|
ch_log(NULL, "BT regexp timed out");
|
|
# endif
|
|
*timed_out = TRUE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Save the current subexpr to "bp", so that they can be restored
|
|
* later by restore_subexpr().
|
|
*/
|
|
static void
|
|
save_subexpr(regbehind_T *bp)
|
|
{
|
|
int i;
|
|
|
|
// When "rex.need_clear_subexpr" is set we don't need to save the values,
|
|
// only remember that this flag needs to be set again when restoring.
|
|
bp->save_need_clear_subexpr = rex.need_clear_subexpr;
|
|
if (rex.need_clear_subexpr)
|
|
return;
|
|
|
|
for (i = 0; i < NSUBEXP; ++i)
|
|
{
|
|
if (REG_MULTI)
|
|
{
|
|
bp->save_start[i].se_u.pos = rex.reg_startpos[i];
|
|
bp->save_end[i].se_u.pos = rex.reg_endpos[i];
|
|
}
|
|
else
|
|
{
|
|
bp->save_start[i].se_u.ptr = rex.reg_startp[i];
|
|
bp->save_end[i].se_u.ptr = rex.reg_endp[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Restore the subexpr from "bp".
|
|
*/
|
|
static void
|
|
restore_subexpr(regbehind_T *bp)
|
|
{
|
|
int i;
|
|
|
|
// Only need to restore saved values when they are not to be cleared.
|
|
rex.need_clear_subexpr = bp->save_need_clear_subexpr;
|
|
if (rex.need_clear_subexpr)
|
|
return;
|
|
|
|
for (i = 0; i < NSUBEXP; ++i)
|
|
{
|
|
if (REG_MULTI)
|
|
{
|
|
rex.reg_startpos[i] = bp->save_start[i].se_u.pos;
|
|
rex.reg_endpos[i] = bp->save_end[i].se_u.pos;
|
|
}
|
|
else
|
|
{
|
|
rex.reg_startp[i] = bp->save_start[i].se_u.ptr;
|
|
rex.reg_endp[i] = bp->save_end[i].se_u.ptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* regmatch - main matching routine
|
|
*
|
|
* Conceptually the strategy is simple: Check to see whether the current node
|
|
* matches, push an item onto the regstack and loop to see whether the rest
|
|
* matches, and then act accordingly. In practice we make some effort to
|
|
* avoid using the regstack, in particular by going through "ordinary" nodes
|
|
* (that don't need to know whether the rest of the match failed) by a nested
|
|
* loop.
|
|
*
|
|
* Returns TRUE when there is a match. Leaves rex.input and rex.lnum just after
|
|
* the last matched character.
|
|
* Returns FALSE when there is no match. Leaves rex.input and rex.lnum in an
|
|
* undefined state!
|
|
*/
|
|
static int
|
|
regmatch(
|
|
char_u *scan, // Current node.
|
|
int *timed_out UNUSED) // flag set on timeout or NULL
|
|
{
|
|
char_u *next; // Next node.
|
|
int op;
|
|
int c;
|
|
regitem_T *rp;
|
|
int no;
|
|
int status; // one of the RA_ values:
|
|
|
|
// Make "regstack" and "backpos" empty. They are allocated and freed in
|
|
// bt_regexec_both() to reduce malloc()/free() calls.
|
|
regstack.ga_len = 0;
|
|
backpos.ga_len = 0;
|
|
|
|
// Repeat until "regstack" is empty.
|
|
for (;;)
|
|
{
|
|
// Some patterns may take a long time to match, e.g., "\([a-z]\+\)\+Q".
|
|
// Allow interrupting them with CTRL-C.
|
|
fast_breakcheck();
|
|
|
|
#ifdef DEBUG
|
|
if (scan != NULL && regnarrate)
|
|
{
|
|
mch_errmsg((char *)regprop(scan));
|
|
mch_errmsg("(\n");
|
|
}
|
|
#endif
|
|
|
|
// Repeat for items that can be matched sequentially, without using the
|
|
// regstack.
|
|
for (;;)
|
|
{
|
|
if (got_int || scan == NULL)
|
|
{
|
|
status = RA_FAIL;
|
|
break;
|
|
}
|
|
#ifdef FEAT_RELTIME
|
|
if (bt_did_time_out(timed_out))
|
|
{
|
|
status = RA_FAIL;
|
|
break;
|
|
}
|
|
#endif
|
|
status = RA_CONT;
|
|
|
|
#ifdef DEBUG
|
|
if (regnarrate)
|
|
{
|
|
mch_errmsg((char *)regprop(scan));
|
|
mch_errmsg("...\n");
|
|
# ifdef FEAT_SYN_HL
|
|
if (re_extmatch_in != NULL)
|
|
{
|
|
int i;
|
|
|
|
mch_errmsg(_("External submatches:\n"));
|
|
for (i = 0; i < NSUBEXP; i++)
|
|
{
|
|
mch_errmsg(" \"");
|
|
if (re_extmatch_in->matches[i] != NULL)
|
|
mch_errmsg((char *)re_extmatch_in->matches[i]);
|
|
mch_errmsg("\"\n");
|
|
}
|
|
}
|
|
# endif
|
|
}
|
|
#endif
|
|
next = regnext(scan);
|
|
|
|
op = OP(scan);
|
|
// Check for character class with NL added.
|
|
if (!rex.reg_line_lbr && WITH_NL(op) && REG_MULTI
|
|
&& *rex.input == NUL && rex.lnum <= rex.reg_maxline)
|
|
{
|
|
reg_nextline();
|
|
}
|
|
else if (rex.reg_line_lbr && WITH_NL(op) && *rex.input == '\n')
|
|
{
|
|
ADVANCE_REGINPUT();
|
|
}
|
|
else
|
|
{
|
|
if (WITH_NL(op))
|
|
op -= ADD_NL;
|
|
if (has_mbyte)
|
|
c = (*mb_ptr2char)(rex.input);
|
|
else
|
|
c = *rex.input;
|
|
switch (op)
|
|
{
|
|
case BOL:
|
|
if (rex.input != rex.line)
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case EOL:
|
|
if (c != NUL)
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_BOF:
|
|
// We're not at the beginning of the file when below the first
|
|
// line where we started, not at the start of the line or we
|
|
// didn't start at the first line of the buffer.
|
|
if (rex.lnum != 0 || rex.input != rex.line
|
|
|| (REG_MULTI && rex.reg_firstlnum > 1))
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_EOF:
|
|
if (rex.lnum != rex.reg_maxline || c != NUL)
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case CURSOR:
|
|
// Check if the buffer is in a window and compare the
|
|
// rex.reg_win->w_cursor position to the match position.
|
|
if (rex.reg_win == NULL
|
|
|| (rex.lnum + rex.reg_firstlnum
|
|
!= rex.reg_win->w_cursor.lnum)
|
|
|| ((colnr_T)(rex.input - rex.line)
|
|
!= rex.reg_win->w_cursor.col))
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_MARK:
|
|
// Compare the mark position to the match position.
|
|
{
|
|
int mark = OPERAND(scan)[0];
|
|
int cmp = OPERAND(scan)[1];
|
|
pos_T *pos;
|
|
size_t col = REG_MULTI ? rex.input - rex.line : 0;
|
|
|
|
pos = getmark_buf(rex.reg_buf, mark, FALSE);
|
|
|
|
// Line may have been freed, get it again.
|
|
if (REG_MULTI)
|
|
{
|
|
rex.line = reg_getline(rex.lnum);
|
|
rex.input = rex.line + col;
|
|
}
|
|
|
|
if (pos == NULL // mark doesn't exist
|
|
|| pos->lnum <= 0) // mark isn't set in reg_buf
|
|
{
|
|
status = RA_NOMATCH;
|
|
}
|
|
else
|
|
{
|
|
colnr_T pos_col = pos->lnum == rex.lnum + rex.reg_firstlnum
|
|
&& pos->col == MAXCOL
|
|
? (colnr_T)STRLEN(reg_getline(
|
|
pos->lnum - rex.reg_firstlnum))
|
|
: pos->col;
|
|
|
|
if ((pos->lnum == rex.lnum + rex.reg_firstlnum
|
|
? (pos_col == (colnr_T)(rex.input - rex.line)
|
|
? (cmp == '<' || cmp == '>')
|
|
: (pos_col < (colnr_T)(rex.input - rex.line)
|
|
? cmp != '>'
|
|
: cmp != '<'))
|
|
: (pos->lnum < rex.lnum + rex.reg_firstlnum
|
|
? cmp != '>'
|
|
: cmp != '<')))
|
|
status = RA_NOMATCH;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case RE_VISUAL:
|
|
if (!reg_match_visual())
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_LNUM:
|
|
if (!REG_MULTI || !re_num_cmp((long_u)(rex.lnum + rex.reg_firstlnum),
|
|
scan))
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_COL:
|
|
if (!re_num_cmp((long_u)(rex.input - rex.line) + 1, scan))
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case RE_VCOL:
|
|
{
|
|
win_T *wp = rex.reg_win == NULL ? curwin : rex.reg_win;
|
|
linenr_T lnum = REG_MULTI ? rex.reg_firstlnum + rex.lnum : 1;
|
|
long_u vcol;
|
|
|
|
if (REG_MULTI && (lnum <= 0
|
|
|| lnum > wp->w_buffer->b_ml.ml_line_count))
|
|
lnum = 1;
|
|
vcol = (long_u)win_linetabsize(wp, lnum, rex.line,
|
|
(colnr_T)(rex.input - rex.line));
|
|
if (!re_num_cmp(vcol + 1, scan))
|
|
status = RA_NOMATCH;
|
|
}
|
|
break;
|
|
|
|
case BOW: // \<word; rex.input points to w
|
|
if (c == NUL) // Can't match at end of line
|
|
status = RA_NOMATCH;
|
|
else if (has_mbyte)
|
|
{
|
|
int this_class;
|
|
|
|
// Get class of current and previous char (if it exists).
|
|
this_class = mb_get_class_buf(rex.input, rex.reg_buf);
|
|
if (this_class <= 1)
|
|
status = RA_NOMATCH; // not on a word at all
|
|
else if (reg_prev_class() == this_class)
|
|
status = RA_NOMATCH; // previous char is in same word
|
|
}
|
|
else
|
|
{
|
|
if (!vim_iswordc_buf(c, rex.reg_buf) || (rex.input > rex.line
|
|
&& vim_iswordc_buf(rex.input[-1], rex.reg_buf)))
|
|
status = RA_NOMATCH;
|
|
}
|
|
break;
|
|
|
|
case EOW: // word\>; rex.input points after d
|
|
if (rex.input == rex.line) // Can't match at start of line
|
|
status = RA_NOMATCH;
|
|
else if (has_mbyte)
|
|
{
|
|
int this_class, prev_class;
|
|
|
|
// Get class of current and previous char (if it exists).
|
|
this_class = mb_get_class_buf(rex.input, rex.reg_buf);
|
|
prev_class = reg_prev_class();
|
|
if (this_class == prev_class
|
|
|| prev_class == 0 || prev_class == 1)
|
|
status = RA_NOMATCH;
|
|
}
|
|
else
|
|
{
|
|
if (!vim_iswordc_buf(rex.input[-1], rex.reg_buf)
|
|
|| (rex.input[0] != NUL
|
|
&& vim_iswordc_buf(c, rex.reg_buf)))
|
|
status = RA_NOMATCH;
|
|
}
|
|
break; // Matched with EOW
|
|
|
|
case ANY:
|
|
// ANY does not match new lines.
|
|
if (c == NUL)
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case IDENT:
|
|
if (!vim_isIDc(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case SIDENT:
|
|
if (VIM_ISDIGIT(*rex.input) || !vim_isIDc(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case KWORD:
|
|
if (!vim_iswordp_buf(rex.input, rex.reg_buf))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case SKWORD:
|
|
if (VIM_ISDIGIT(*rex.input)
|
|
|| !vim_iswordp_buf(rex.input, rex.reg_buf))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case FNAME:
|
|
if (!vim_isfilec(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case SFNAME:
|
|
if (VIM_ISDIGIT(*rex.input) || !vim_isfilec(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case PRINT:
|
|
if (!vim_isprintc(PTR2CHAR(rex.input)))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case SPRINT:
|
|
if (VIM_ISDIGIT(*rex.input) || !vim_isprintc(PTR2CHAR(rex.input)))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case WHITE:
|
|
if (!VIM_ISWHITE(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NWHITE:
|
|
if (c == NUL || VIM_ISWHITE(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case DIGIT:
|
|
if (!ri_digit(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NDIGIT:
|
|
if (c == NUL || ri_digit(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case HEX:
|
|
if (!ri_hex(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NHEX:
|
|
if (c == NUL || ri_hex(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case OCTAL:
|
|
if (!ri_octal(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NOCTAL:
|
|
if (c == NUL || ri_octal(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case WORD:
|
|
if (!ri_word(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NWORD:
|
|
if (c == NUL || ri_word(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case HEAD:
|
|
if (!ri_head(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NHEAD:
|
|
if (c == NUL || ri_head(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case ALPHA:
|
|
if (!ri_alpha(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NALPHA:
|
|
if (c == NUL || ri_alpha(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case LOWER:
|
|
if (!ri_lower(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NLOWER:
|
|
if (c == NUL || ri_lower(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case UPPER:
|
|
if (!ri_upper(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case NUPPER:
|
|
if (c == NUL || ri_upper(c))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case EXACTLY:
|
|
{
|
|
int len;
|
|
char_u *opnd;
|
|
|
|
opnd = OPERAND(scan);
|
|
// Inline the first byte, for speed.
|
|
if (*opnd != *rex.input
|
|
&& (!rex.reg_ic
|
|
|| (!enc_utf8
|
|
&& MB_TOLOWER(*opnd) != MB_TOLOWER(*rex.input))))
|
|
status = RA_NOMATCH;
|
|
else if (*opnd == NUL)
|
|
{
|
|
// match empty string always works; happens when "~" is
|
|
// empty.
|
|
}
|
|
else
|
|
{
|
|
if (opnd[1] == NUL && !(enc_utf8 && rex.reg_ic))
|
|
{
|
|
len = 1; // matched a single byte above
|
|
}
|
|
else
|
|
{
|
|
// Need to match first byte again for multi-byte.
|
|
len = (int)STRLEN(opnd);
|
|
if (cstrncmp(opnd, rex.input, &len) != 0)
|
|
status = RA_NOMATCH;
|
|
}
|
|
// Check for following composing character, unless %C
|
|
// follows (skips over all composing chars).
|
|
if (status != RA_NOMATCH
|
|
&& enc_utf8
|
|
&& UTF_COMPOSINGLIKE(rex.input, rex.input + len)
|
|
&& !rex.reg_icombine
|
|
&& OP(next) != RE_COMPOSING)
|
|
{
|
|
// raaron: This code makes a composing character get
|
|
// ignored, which is the correct behavior (sometimes)
|
|
// for voweled Hebrew texts.
|
|
status = RA_NOMATCH;
|
|
}
|
|
if (status != RA_NOMATCH)
|
|
rex.input += len;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ANYOF:
|
|
case ANYBUT:
|
|
if (c == NUL)
|
|
status = RA_NOMATCH;
|
|
else if ((cstrchr(OPERAND(scan), c) == NULL) == (op == ANYOF))
|
|
status = RA_NOMATCH;
|
|
else
|
|
ADVANCE_REGINPUT();
|
|
break;
|
|
|
|
case MULTIBYTECODE:
|
|
if (has_mbyte)
|
|
{
|
|
int i, len;
|
|
char_u *opnd;
|
|
int opndc = 0, inpc;
|
|
|
|
opnd = OPERAND(scan);
|
|
// Safety check (just in case 'encoding' was changed since
|
|
// compiling the program).
|
|
if ((len = (*mb_ptr2len)(opnd)) < 2)
|
|
{
|
|
status = RA_NOMATCH;
|
|
break;
|
|
}
|
|
if (enc_utf8)
|
|
opndc = utf_ptr2char(opnd);
|
|
if (enc_utf8 && utf_iscomposing(opndc))
|
|
{
|
|
// When only a composing char is given match at any
|
|
// position where that composing char appears.
|
|
status = RA_NOMATCH;
|
|
for (i = 0; rex.input[i] != NUL;
|
|
i += utf_ptr2len(rex.input + i))
|
|
{
|
|
inpc = utf_ptr2char(rex.input + i);
|
|
if (!utf_iscomposing(inpc))
|
|
{
|
|
if (i > 0)
|
|
break;
|
|
}
|
|
else if (opndc == inpc)
|
|
{
|
|
// Include all following composing chars.
|
|
len = i + utfc_ptr2len(rex.input + i);
|
|
status = RA_MATCH;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
for (i = 0; i < len; ++i)
|
|
if (opnd[i] != rex.input[i])
|
|
{
|
|
status = RA_NOMATCH;
|
|
break;
|
|
}
|
|
rex.input += len;
|
|
}
|
|
else
|
|
status = RA_NOMATCH;
|
|
break;
|
|
case RE_COMPOSING:
|
|
if (enc_utf8)
|
|
{
|
|
// Skip composing characters.
|
|
while (utf_iscomposing(utf_ptr2char(rex.input)))
|
|
MB_CPTR_ADV(rex.input);
|
|
}
|
|
break;
|
|
|
|
case NOTHING:
|
|
break;
|
|
|
|
case BACK:
|
|
{
|
|
int i;
|
|
backpos_T *bp;
|
|
|
|
// When we run into BACK we need to check if we don't keep
|
|
// looping without matching any input. The second and later
|
|
// times a BACK is encountered it fails if the input is still
|
|
// at the same position as the previous time.
|
|
// The positions are stored in "backpos" and found by the
|
|
// current value of "scan", the position in the RE program.
|
|
bp = (backpos_T *)backpos.ga_data;
|
|
for (i = 0; i < backpos.ga_len; ++i)
|
|
if (bp[i].bp_scan == scan)
|
|
break;
|
|
if (i == backpos.ga_len)
|
|
{
|
|
// First time at this BACK, make room to store the pos.
|
|
if (ga_grow(&backpos, 1) == FAIL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
// get "ga_data" again, it may have changed
|
|
bp = (backpos_T *)backpos.ga_data;
|
|
bp[i].bp_scan = scan;
|
|
++backpos.ga_len;
|
|
}
|
|
}
|
|
else if (reg_save_equal(&bp[i].bp_pos))
|
|
// Still at same position as last time, fail.
|
|
status = RA_NOMATCH;
|
|
|
|
if (status != RA_FAIL && status != RA_NOMATCH)
|
|
reg_save(&bp[i].bp_pos, &backpos);
|
|
}
|
|
break;
|
|
|
|
case MOPEN + 0: // Match start: \zs
|
|
case MOPEN + 1: // \(
|
|
case MOPEN + 2:
|
|
case MOPEN + 3:
|
|
case MOPEN + 4:
|
|
case MOPEN + 5:
|
|
case MOPEN + 6:
|
|
case MOPEN + 7:
|
|
case MOPEN + 8:
|
|
case MOPEN + 9:
|
|
{
|
|
no = op - MOPEN;
|
|
cleanup_subexpr();
|
|
rp = regstack_push(RS_MOPEN, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
save_se(&rp->rs_un.sesave, &rex.reg_startpos[no],
|
|
&rex.reg_startp[no]);
|
|
// We simply continue and handle the result when done.
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NOPEN: // \%(
|
|
case NCLOSE: // \) after \%(
|
|
if (regstack_push(RS_NOPEN, scan) == NULL)
|
|
status = RA_FAIL;
|
|
// We simply continue and handle the result when done.
|
|
break;
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
case ZOPEN + 1:
|
|
case ZOPEN + 2:
|
|
case ZOPEN + 3:
|
|
case ZOPEN + 4:
|
|
case ZOPEN + 5:
|
|
case ZOPEN + 6:
|
|
case ZOPEN + 7:
|
|
case ZOPEN + 8:
|
|
case ZOPEN + 9:
|
|
{
|
|
no = op - ZOPEN;
|
|
cleanup_zsubexpr();
|
|
rp = regstack_push(RS_ZOPEN, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
save_se(&rp->rs_un.sesave, ®_startzpos[no],
|
|
®_startzp[no]);
|
|
// We simply continue and handle the result when done.
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case MCLOSE + 0: // Match end: \ze
|
|
case MCLOSE + 1: // \)
|
|
case MCLOSE + 2:
|
|
case MCLOSE + 3:
|
|
case MCLOSE + 4:
|
|
case MCLOSE + 5:
|
|
case MCLOSE + 6:
|
|
case MCLOSE + 7:
|
|
case MCLOSE + 8:
|
|
case MCLOSE + 9:
|
|
{
|
|
no = op - MCLOSE;
|
|
cleanup_subexpr();
|
|
rp = regstack_push(RS_MCLOSE, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
save_se(&rp->rs_un.sesave, &rex.reg_endpos[no],
|
|
&rex.reg_endp[no]);
|
|
// We simply continue and handle the result when done.
|
|
}
|
|
}
|
|
break;
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
case ZCLOSE + 1: // \) after \z(
|
|
case ZCLOSE + 2:
|
|
case ZCLOSE + 3:
|
|
case ZCLOSE + 4:
|
|
case ZCLOSE + 5:
|
|
case ZCLOSE + 6:
|
|
case ZCLOSE + 7:
|
|
case ZCLOSE + 8:
|
|
case ZCLOSE + 9:
|
|
{
|
|
no = op - ZCLOSE;
|
|
cleanup_zsubexpr();
|
|
rp = regstack_push(RS_ZCLOSE, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
save_se(&rp->rs_un.sesave, ®_endzpos[no],
|
|
®_endzp[no]);
|
|
// We simply continue and handle the result when done.
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case BACKREF + 1:
|
|
case BACKREF + 2:
|
|
case BACKREF + 3:
|
|
case BACKREF + 4:
|
|
case BACKREF + 5:
|
|
case BACKREF + 6:
|
|
case BACKREF + 7:
|
|
case BACKREF + 8:
|
|
case BACKREF + 9:
|
|
{
|
|
int len;
|
|
|
|
no = op - BACKREF;
|
|
cleanup_subexpr();
|
|
if (!REG_MULTI) // Single-line regexp
|
|
{
|
|
if (rex.reg_startp[no] == NULL || rex.reg_endp[no] == NULL)
|
|
{
|
|
// Backref was not set: Match an empty string.
|
|
len = 0;
|
|
}
|
|
else
|
|
{
|
|
// Compare current input with back-ref in the same
|
|
// line.
|
|
len = (int)(rex.reg_endp[no] - rex.reg_startp[no]);
|
|
if (cstrncmp(rex.reg_startp[no], rex.input, &len) != 0)
|
|
status = RA_NOMATCH;
|
|
}
|
|
}
|
|
else // Multi-line regexp
|
|
{
|
|
if (rex.reg_startpos[no].lnum < 0
|
|
|| rex.reg_endpos[no].lnum < 0)
|
|
{
|
|
// Backref was not set: Match an empty string.
|
|
len = 0;
|
|
}
|
|
else
|
|
{
|
|
if (rex.reg_startpos[no].lnum == rex.lnum
|
|
&& rex.reg_endpos[no].lnum == rex.lnum)
|
|
{
|
|
// Compare back-ref within the current line.
|
|
len = rex.reg_endpos[no].col
|
|
- rex.reg_startpos[no].col;
|
|
if (cstrncmp(rex.line + rex.reg_startpos[no].col,
|
|
rex.input, &len) != 0)
|
|
status = RA_NOMATCH;
|
|
}
|
|
else
|
|
{
|
|
// Messy situation: Need to compare between two
|
|
// lines.
|
|
int r = match_with_backref(
|
|
rex.reg_startpos[no].lnum,
|
|
rex.reg_startpos[no].col,
|
|
rex.reg_endpos[no].lnum,
|
|
rex.reg_endpos[no].col,
|
|
&len);
|
|
|
|
if (r != RA_MATCH)
|
|
status = r;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Matched the backref, skip over it.
|
|
rex.input += len;
|
|
}
|
|
break;
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
case ZREF + 1:
|
|
case ZREF + 2:
|
|
case ZREF + 3:
|
|
case ZREF + 4:
|
|
case ZREF + 5:
|
|
case ZREF + 6:
|
|
case ZREF + 7:
|
|
case ZREF + 8:
|
|
case ZREF + 9:
|
|
{
|
|
int len;
|
|
|
|
cleanup_zsubexpr();
|
|
no = op - ZREF;
|
|
if (re_extmatch_in != NULL
|
|
&& re_extmatch_in->matches[no] != NULL)
|
|
{
|
|
len = (int)STRLEN(re_extmatch_in->matches[no]);
|
|
if (cstrncmp(re_extmatch_in->matches[no],
|
|
rex.input, &len) != 0)
|
|
status = RA_NOMATCH;
|
|
else
|
|
rex.input += len;
|
|
}
|
|
else
|
|
{
|
|
// Backref was not set: Match an empty string.
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case BRANCH:
|
|
{
|
|
if (OP(next) != BRANCH) // No choice.
|
|
next = OPERAND(scan); // Avoid recursion.
|
|
else
|
|
{
|
|
rp = regstack_push(RS_BRANCH, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
status = RA_BREAK; // rest is below
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BRACE_LIMITS:
|
|
{
|
|
if (OP(next) == BRACE_SIMPLE)
|
|
{
|
|
bl_minval = OPERAND_MIN(scan);
|
|
bl_maxval = OPERAND_MAX(scan);
|
|
}
|
|
else if (OP(next) >= BRACE_COMPLEX
|
|
&& OP(next) < BRACE_COMPLEX + 10)
|
|
{
|
|
no = OP(next) - BRACE_COMPLEX;
|
|
brace_min[no] = OPERAND_MIN(scan);
|
|
brace_max[no] = OPERAND_MAX(scan);
|
|
brace_count[no] = 0;
|
|
}
|
|
else
|
|
{
|
|
internal_error("BRACE_LIMITS");
|
|
status = RA_FAIL;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BRACE_COMPLEX + 0:
|
|
case BRACE_COMPLEX + 1:
|
|
case BRACE_COMPLEX + 2:
|
|
case BRACE_COMPLEX + 3:
|
|
case BRACE_COMPLEX + 4:
|
|
case BRACE_COMPLEX + 5:
|
|
case BRACE_COMPLEX + 6:
|
|
case BRACE_COMPLEX + 7:
|
|
case BRACE_COMPLEX + 8:
|
|
case BRACE_COMPLEX + 9:
|
|
{
|
|
no = op - BRACE_COMPLEX;
|
|
++brace_count[no];
|
|
|
|
// If not matched enough times yet, try one more
|
|
if (brace_count[no] <= (brace_min[no] <= brace_max[no]
|
|
? brace_min[no] : brace_max[no]))
|
|
{
|
|
rp = regstack_push(RS_BRCPLX_MORE, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
next = OPERAND(scan);
|
|
// We continue and handle the result when done.
|
|
}
|
|
break;
|
|
}
|
|
|
|
// If matched enough times, may try matching some more
|
|
if (brace_min[no] <= brace_max[no])
|
|
{
|
|
// Range is the normal way around, use longest match
|
|
if (brace_count[no] <= brace_max[no])
|
|
{
|
|
rp = regstack_push(RS_BRCPLX_LONG, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = no;
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
next = OPERAND(scan);
|
|
// We continue and handle the result when done.
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Range is backwards, use shortest match first
|
|
if (brace_count[no] <= brace_min[no])
|
|
{
|
|
rp = regstack_push(RS_BRCPLX_SHORT, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
// We continue and handle the result when done.
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BRACE_SIMPLE:
|
|
case STAR:
|
|
case PLUS:
|
|
{
|
|
regstar_T rst;
|
|
|
|
// Lookahead to avoid useless match attempts when we know
|
|
// what character comes next.
|
|
if (OP(next) == EXACTLY)
|
|
{
|
|
rst.nextb = *OPERAND(next);
|
|
if (rex.reg_ic)
|
|
{
|
|
if (MB_ISUPPER(rst.nextb))
|
|
rst.nextb_ic = MB_TOLOWER(rst.nextb);
|
|
else
|
|
rst.nextb_ic = MB_TOUPPER(rst.nextb);
|
|
}
|
|
else
|
|
rst.nextb_ic = rst.nextb;
|
|
}
|
|
else
|
|
{
|
|
rst.nextb = NUL;
|
|
rst.nextb_ic = NUL;
|
|
}
|
|
if (op != BRACE_SIMPLE)
|
|
{
|
|
rst.minval = (op == STAR) ? 0 : 1;
|
|
rst.maxval = MAX_LIMIT;
|
|
}
|
|
else
|
|
{
|
|
rst.minval = bl_minval;
|
|
rst.maxval = bl_maxval;
|
|
}
|
|
|
|
// When maxval > minval, try matching as much as possible, up
|
|
// to maxval. When maxval < minval, try matching at least the
|
|
// minimal number (since the range is backwards, that's also
|
|
// maxval!).
|
|
rst.count = regrepeat(OPERAND(scan), rst.maxval);
|
|
if (got_int)
|
|
{
|
|
status = RA_FAIL;
|
|
break;
|
|
}
|
|
if (rst.minval <= rst.maxval
|
|
? rst.count >= rst.minval : rst.count >= rst.maxval)
|
|
{
|
|
// It could match. Prepare for trying to match what
|
|
// follows. The code is below. Parameters are stored in
|
|
// a regstar_T on the regstack.
|
|
if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp)
|
|
{
|
|
emsg(_(e_pattern_uses_more_memory_than_maxmempattern));
|
|
status = RA_FAIL;
|
|
}
|
|
else if (ga_grow(®stack, sizeof(regstar_T)) == FAIL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
regstack.ga_len += sizeof(regstar_T);
|
|
rp = regstack_push(rst.minval <= rst.maxval
|
|
? RS_STAR_LONG : RS_STAR_SHORT, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
*(((regstar_T *)rp) - 1) = rst;
|
|
status = RA_BREAK; // skip the restore bits
|
|
}
|
|
}
|
|
}
|
|
else
|
|
status = RA_NOMATCH;
|
|
|
|
}
|
|
break;
|
|
|
|
case NOMATCH:
|
|
case MATCH:
|
|
case SUBPAT:
|
|
rp = regstack_push(RS_NOMATCH, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
rp->rs_no = op;
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
next = OPERAND(scan);
|
|
// We continue and handle the result when done.
|
|
}
|
|
break;
|
|
|
|
case BEHIND:
|
|
case NOBEHIND:
|
|
// Need a bit of room to store extra positions.
|
|
if ((long)((unsigned)regstack.ga_len >> 10) >= p_mmp)
|
|
{
|
|
emsg(_(e_pattern_uses_more_memory_than_maxmempattern));
|
|
status = RA_FAIL;
|
|
}
|
|
else if (ga_grow(®stack, sizeof(regbehind_T)) == FAIL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
regstack.ga_len += sizeof(regbehind_T);
|
|
rp = regstack_push(RS_BEHIND1, scan);
|
|
if (rp == NULL)
|
|
status = RA_FAIL;
|
|
else
|
|
{
|
|
// Need to save the subexpr to be able to restore them
|
|
// when there is a match but we don't use it.
|
|
save_subexpr(((regbehind_T *)rp) - 1);
|
|
|
|
rp->rs_no = op;
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
// First try if what follows matches. If it does then we
|
|
// check the behind match by looping.
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BHPOS:
|
|
if (REG_MULTI)
|
|
{
|
|
if (behind_pos.rs_u.pos.col != (colnr_T)(rex.input - rex.line)
|
|
|| behind_pos.rs_u.pos.lnum != rex.lnum)
|
|
status = RA_NOMATCH;
|
|
}
|
|
else if (behind_pos.rs_u.ptr != rex.input)
|
|
status = RA_NOMATCH;
|
|
break;
|
|
|
|
case NEWL:
|
|
if ((c != NUL || !REG_MULTI || rex.lnum > rex.reg_maxline
|
|
|| rex.reg_line_lbr)
|
|
&& (c != '\n' || !rex.reg_line_lbr))
|
|
status = RA_NOMATCH;
|
|
else if (rex.reg_line_lbr)
|
|
ADVANCE_REGINPUT();
|
|
else
|
|
reg_nextline();
|
|
break;
|
|
|
|
case END:
|
|
status = RA_MATCH; // Success!
|
|
break;
|
|
|
|
default:
|
|
iemsg(e_corrupted_regexp_program);
|
|
#ifdef DEBUG
|
|
printf("Illegal op code %d\n", op);
|
|
#endif
|
|
status = RA_FAIL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we can't continue sequentially, break the inner loop.
|
|
if (status != RA_CONT)
|
|
break;
|
|
|
|
// Continue in inner loop, advance to next item.
|
|
scan = next;
|
|
|
|
} // end of inner loop
|
|
|
|
// If there is something on the regstack execute the code for the state.
|
|
// If the state is popped then loop and use the older state.
|
|
while (regstack.ga_len > 0 && status != RA_FAIL)
|
|
{
|
|
rp = (regitem_T *)((char *)regstack.ga_data + regstack.ga_len) - 1;
|
|
switch (rp->rs_state)
|
|
{
|
|
case RS_NOPEN:
|
|
// Result is passed on as-is, simply pop the state.
|
|
regstack_pop(&scan);
|
|
break;
|
|
|
|
case RS_MOPEN:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
restore_se(&rp->rs_un.sesave, &rex.reg_startpos[rp->rs_no],
|
|
&rex.reg_startp[rp->rs_no]);
|
|
regstack_pop(&scan);
|
|
break;
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
case RS_ZOPEN:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
restore_se(&rp->rs_un.sesave, ®_startzpos[rp->rs_no],
|
|
®_startzp[rp->rs_no]);
|
|
regstack_pop(&scan);
|
|
break;
|
|
#endif
|
|
|
|
case RS_MCLOSE:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
restore_se(&rp->rs_un.sesave, &rex.reg_endpos[rp->rs_no],
|
|
&rex.reg_endp[rp->rs_no]);
|
|
regstack_pop(&scan);
|
|
break;
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
case RS_ZCLOSE:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
restore_se(&rp->rs_un.sesave, ®_endzpos[rp->rs_no],
|
|
®_endzp[rp->rs_no]);
|
|
regstack_pop(&scan);
|
|
break;
|
|
#endif
|
|
|
|
case RS_BRANCH:
|
|
if (status == RA_MATCH)
|
|
// this branch matched, use it
|
|
regstack_pop(&scan);
|
|
else
|
|
{
|
|
if (status != RA_BREAK)
|
|
{
|
|
// After a non-matching branch: try next one.
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
scan = rp->rs_scan;
|
|
}
|
|
if (scan == NULL || OP(scan) != BRANCH)
|
|
{
|
|
// no more branches, didn't find a match
|
|
status = RA_NOMATCH;
|
|
regstack_pop(&scan);
|
|
}
|
|
else
|
|
{
|
|
// Prepare to try a branch.
|
|
rp->rs_scan = regnext(scan);
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
scan = OPERAND(scan);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case RS_BRCPLX_MORE:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
{
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
--brace_count[rp->rs_no]; // decrement match count
|
|
}
|
|
regstack_pop(&scan);
|
|
break;
|
|
|
|
case RS_BRCPLX_LONG:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
{
|
|
// There was no match, but we did find enough matches.
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
--brace_count[rp->rs_no];
|
|
// continue with the items after "\{}"
|
|
status = RA_CONT;
|
|
}
|
|
regstack_pop(&scan);
|
|
if (status == RA_CONT)
|
|
scan = regnext(scan);
|
|
break;
|
|
|
|
case RS_BRCPLX_SHORT:
|
|
// Pop the state. Restore pointers when there is no match.
|
|
if (status == RA_NOMATCH)
|
|
// There was no match, try to match one more item.
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
regstack_pop(&scan);
|
|
if (status == RA_NOMATCH)
|
|
{
|
|
scan = OPERAND(scan);
|
|
status = RA_CONT;
|
|
}
|
|
break;
|
|
|
|
case RS_NOMATCH:
|
|
// Pop the state. If the operand matches for NOMATCH or
|
|
// doesn't match for MATCH/SUBPAT, we fail. Otherwise backup,
|
|
// except for SUBPAT, and continue with the next item.
|
|
if (status == (rp->rs_no == NOMATCH ? RA_MATCH : RA_NOMATCH))
|
|
status = RA_NOMATCH;
|
|
else
|
|
{
|
|
status = RA_CONT;
|
|
if (rp->rs_no != SUBPAT) // zero-width
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
}
|
|
regstack_pop(&scan);
|
|
if (status == RA_CONT)
|
|
scan = regnext(scan);
|
|
break;
|
|
|
|
case RS_BEHIND1:
|
|
if (status == RA_NOMATCH)
|
|
{
|
|
regstack_pop(&scan);
|
|
regstack.ga_len -= sizeof(regbehind_T);
|
|
}
|
|
else
|
|
{
|
|
// The stuff after BEHIND/NOBEHIND matches. Now try if
|
|
// the behind part does (not) match before the current
|
|
// position in the input. This must be done at every
|
|
// position in the input and checking if the match ends at
|
|
// the current position.
|
|
|
|
// save the position after the found match for next
|
|
reg_save(&(((regbehind_T *)rp) - 1)->save_after, &backpos);
|
|
|
|
// Start looking for a match with operand at the current
|
|
// position. Go back one character until we find the
|
|
// result, hitting the start of the line or the previous
|
|
// line (for multi-line matching).
|
|
// Set behind_pos to where the match should end, BHPOS
|
|
// will match it. Save the current value.
|
|
(((regbehind_T *)rp) - 1)->save_behind = behind_pos;
|
|
behind_pos = rp->rs_un.regsave;
|
|
|
|
rp->rs_state = RS_BEHIND2;
|
|
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
scan = OPERAND(rp->rs_scan) + 4;
|
|
}
|
|
break;
|
|
|
|
case RS_BEHIND2:
|
|
// Looping for BEHIND / NOBEHIND match.
|
|
if (status == RA_MATCH && reg_save_equal(&behind_pos))
|
|
{
|
|
// found a match that ends where "next" started
|
|
behind_pos = (((regbehind_T *)rp) - 1)->save_behind;
|
|
if (rp->rs_no == BEHIND)
|
|
reg_restore(&(((regbehind_T *)rp) - 1)->save_after,
|
|
&backpos);
|
|
else
|
|
{
|
|
// But we didn't want a match. Need to restore the
|
|
// subexpr, because what follows matched, so they have
|
|
// been set.
|
|
status = RA_NOMATCH;
|
|
restore_subexpr(((regbehind_T *)rp) - 1);
|
|
}
|
|
regstack_pop(&scan);
|
|
regstack.ga_len -= sizeof(regbehind_T);
|
|
}
|
|
else
|
|
{
|
|
long limit;
|
|
|
|
// No match or a match that doesn't end where we want it: Go
|
|
// back one character. May go to previous line once.
|
|
no = OK;
|
|
limit = OPERAND_MIN(rp->rs_scan);
|
|
if (REG_MULTI)
|
|
{
|
|
if (limit > 0
|
|
&& ((rp->rs_un.regsave.rs_u.pos.lnum
|
|
< behind_pos.rs_u.pos.lnum
|
|
? (colnr_T)STRLEN(rex.line)
|
|
: behind_pos.rs_u.pos.col)
|
|
- rp->rs_un.regsave.rs_u.pos.col >= limit))
|
|
no = FAIL;
|
|
else if (rp->rs_un.regsave.rs_u.pos.col == 0)
|
|
{
|
|
if (rp->rs_un.regsave.rs_u.pos.lnum
|
|
< behind_pos.rs_u.pos.lnum
|
|
|| reg_getline(
|
|
--rp->rs_un.regsave.rs_u.pos.lnum)
|
|
== NULL)
|
|
no = FAIL;
|
|
else
|
|
{
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
rp->rs_un.regsave.rs_u.pos.col =
|
|
(colnr_T)STRLEN(rex.line);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (has_mbyte)
|
|
{
|
|
char_u *line =
|
|
reg_getline(rp->rs_un.regsave.rs_u.pos.lnum);
|
|
|
|
rp->rs_un.regsave.rs_u.pos.col -=
|
|
(*mb_head_off)(line, line
|
|
+ rp->rs_un.regsave.rs_u.pos.col - 1) + 1;
|
|
}
|
|
else
|
|
--rp->rs_un.regsave.rs_u.pos.col;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (rp->rs_un.regsave.rs_u.ptr == rex.line)
|
|
no = FAIL;
|
|
else
|
|
{
|
|
MB_PTR_BACK(rex.line, rp->rs_un.regsave.rs_u.ptr);
|
|
if (limit > 0 && (long)(behind_pos.rs_u.ptr
|
|
- rp->rs_un.regsave.rs_u.ptr) > limit)
|
|
no = FAIL;
|
|
}
|
|
}
|
|
if (no == OK)
|
|
{
|
|
// Advanced, prepare for finding match again.
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
scan = OPERAND(rp->rs_scan) + 4;
|
|
if (status == RA_MATCH)
|
|
{
|
|
// We did match, so subexpr may have been changed,
|
|
// need to restore them for the next try.
|
|
status = RA_NOMATCH;
|
|
restore_subexpr(((regbehind_T *)rp) - 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Can't advance. For NOBEHIND that's a match.
|
|
behind_pos = (((regbehind_T *)rp) - 1)->save_behind;
|
|
if (rp->rs_no == NOBEHIND)
|
|
{
|
|
reg_restore(&(((regbehind_T *)rp) - 1)->save_after,
|
|
&backpos);
|
|
status = RA_MATCH;
|
|
}
|
|
else
|
|
{
|
|
// We do want a proper match. Need to restore the
|
|
// subexpr if we had a match, because they may have
|
|
// been set.
|
|
if (status == RA_MATCH)
|
|
{
|
|
status = RA_NOMATCH;
|
|
restore_subexpr(((regbehind_T *)rp) - 1);
|
|
}
|
|
}
|
|
regstack_pop(&scan);
|
|
regstack.ga_len -= sizeof(regbehind_T);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case RS_STAR_LONG:
|
|
case RS_STAR_SHORT:
|
|
{
|
|
regstar_T *rst = ((regstar_T *)rp) - 1;
|
|
|
|
if (status == RA_MATCH)
|
|
{
|
|
regstack_pop(&scan);
|
|
regstack.ga_len -= sizeof(regstar_T);
|
|
break;
|
|
}
|
|
|
|
// Tried once already, restore input pointers.
|
|
if (status != RA_BREAK)
|
|
reg_restore(&rp->rs_un.regsave, &backpos);
|
|
|
|
// Repeat until we found a position where it could match.
|
|
for (;;)
|
|
{
|
|
if (status != RA_BREAK)
|
|
{
|
|
// Tried first position already, advance.
|
|
if (rp->rs_state == RS_STAR_LONG)
|
|
{
|
|
// Trying for longest match, but couldn't or
|
|
// didn't match -- back up one char.
|
|
if (--rst->count < rst->minval)
|
|
break;
|
|
if (rex.input == rex.line)
|
|
{
|
|
// backup to last char of previous line
|
|
if (rex.lnum == 0)
|
|
{
|
|
status = RA_NOMATCH;
|
|
break;
|
|
}
|
|
--rex.lnum;
|
|
rex.line = reg_getline(rex.lnum);
|
|
// Just in case regrepeat() didn't count
|
|
// right.
|
|
if (rex.line == NULL)
|
|
break;
|
|
rex.input = rex.line + STRLEN(rex.line);
|
|
fast_breakcheck();
|
|
}
|
|
else
|
|
MB_PTR_BACK(rex.line, rex.input);
|
|
}
|
|
else
|
|
{
|
|
// Range is backwards, use shortest match first.
|
|
// Careful: maxval and minval are exchanged!
|
|
// Couldn't or didn't match: try advancing one
|
|
// char.
|
|
if (rst->count == rst->minval
|
|
|| regrepeat(OPERAND(rp->rs_scan), 1L) == 0)
|
|
break;
|
|
++rst->count;
|
|
}
|
|
if (got_int)
|
|
break;
|
|
}
|
|
else
|
|
status = RA_NOMATCH;
|
|
|
|
// If it could match, try it.
|
|
if (rst->nextb == NUL || *rex.input == rst->nextb
|
|
|| *rex.input == rst->nextb_ic)
|
|
{
|
|
reg_save(&rp->rs_un.regsave, &backpos);
|
|
scan = regnext(rp->rs_scan);
|
|
status = RA_CONT;
|
|
break;
|
|
}
|
|
}
|
|
if (status != RA_CONT)
|
|
{
|
|
// Failed.
|
|
regstack_pop(&scan);
|
|
regstack.ga_len -= sizeof(regstar_T);
|
|
status = RA_NOMATCH;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// If we want to continue the inner loop or didn't pop a state
|
|
// continue matching loop
|
|
if (status == RA_CONT || rp == (regitem_T *)
|
|
((char *)regstack.ga_data + regstack.ga_len) - 1)
|
|
break;
|
|
|
|
#ifdef FEAT_RELTIME
|
|
if (bt_did_time_out(timed_out))
|
|
{
|
|
status = RA_FAIL;
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// May need to continue with the inner loop, starting at "scan".
|
|
if (status == RA_CONT)
|
|
continue;
|
|
|
|
// If the regstack is empty or something failed we are done.
|
|
if (regstack.ga_len == 0 || status == RA_FAIL)
|
|
{
|
|
if (scan == NULL)
|
|
{
|
|
// We get here only if there's trouble -- normally "case END" is
|
|
// the terminating point.
|
|
iemsg(e_corrupted_regexp_program);
|
|
#ifdef DEBUG
|
|
printf("Premature EOL\n");
|
|
#endif
|
|
}
|
|
return (status == RA_MATCH);
|
|
}
|
|
|
|
} // End of loop until the regstack is empty.
|
|
|
|
// NOTREACHED
|
|
}
|
|
|
|
/*
|
|
* regtry - try match of "prog" with at rex.line["col"].
|
|
* Returns 0 for failure, number of lines contained in the match otherwise.
|
|
*/
|
|
static long
|
|
regtry(
|
|
bt_regprog_T *prog,
|
|
colnr_T col,
|
|
int *timed_out) // flag set on timeout or NULL
|
|
{
|
|
rex.input = rex.line + col;
|
|
rex.need_clear_subexpr = TRUE;
|
|
#ifdef FEAT_SYN_HL
|
|
// Clear the external match subpointers if necessary.
|
|
rex.need_clear_zsubexpr = (prog->reghasz == REX_SET);
|
|
#endif
|
|
|
|
if (regmatch(prog->program + 1, timed_out) == 0)
|
|
return 0;
|
|
|
|
cleanup_subexpr();
|
|
if (REG_MULTI)
|
|
{
|
|
if (rex.reg_startpos[0].lnum < 0)
|
|
{
|
|
rex.reg_startpos[0].lnum = 0;
|
|
rex.reg_startpos[0].col = col;
|
|
}
|
|
if (rex.reg_endpos[0].lnum < 0)
|
|
{
|
|
rex.reg_endpos[0].lnum = rex.lnum;
|
|
rex.reg_endpos[0].col = (int)(rex.input - rex.line);
|
|
}
|
|
else
|
|
// Use line number of "\ze".
|
|
rex.lnum = rex.reg_endpos[0].lnum;
|
|
}
|
|
else
|
|
{
|
|
if (rex.reg_startp[0] == NULL)
|
|
rex.reg_startp[0] = rex.line + col;
|
|
if (rex.reg_endp[0] == NULL)
|
|
rex.reg_endp[0] = rex.input;
|
|
}
|
|
#ifdef FEAT_SYN_HL
|
|
// Package any found \z(...\) matches for export. Default is none.
|
|
unref_extmatch(re_extmatch_out);
|
|
re_extmatch_out = NULL;
|
|
|
|
if (prog->reghasz == REX_SET)
|
|
{
|
|
int i;
|
|
|
|
cleanup_zsubexpr();
|
|
re_extmatch_out = make_extmatch();
|
|
if (re_extmatch_out == NULL)
|
|
return 0;
|
|
for (i = 0; i < NSUBEXP; i++)
|
|
{
|
|
if (REG_MULTI)
|
|
{
|
|
// Only accept single line matches.
|
|
if (reg_startzpos[i].lnum >= 0
|
|
&& reg_endzpos[i].lnum == reg_startzpos[i].lnum
|
|
&& reg_endzpos[i].col >= reg_startzpos[i].col)
|
|
re_extmatch_out->matches[i] =
|
|
vim_strnsave(reg_getline(reg_startzpos[i].lnum)
|
|
+ reg_startzpos[i].col,
|
|
reg_endzpos[i].col - reg_startzpos[i].col);
|
|
}
|
|
else
|
|
{
|
|
if (reg_startzp[i] != NULL && reg_endzp[i] != NULL)
|
|
re_extmatch_out->matches[i] =
|
|
vim_strnsave(reg_startzp[i],
|
|
reg_endzp[i] - reg_startzp[i]);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
return 1 + rex.lnum;
|
|
}
|
|
|
|
/*
|
|
* Match a regexp against a string ("line" points to the string) or multiple
|
|
* lines (if "line" is NULL, use reg_getline()).
|
|
* Returns 0 for failure, number of lines contained in the match otherwise.
|
|
*/
|
|
static long
|
|
bt_regexec_both(
|
|
char_u *line,
|
|
colnr_T startcol, // column to start looking for match
|
|
int *timed_out) // flag set on timeout or NULL
|
|
{
|
|
bt_regprog_T *prog;
|
|
char_u *s;
|
|
colnr_T col = startcol;
|
|
long retval = 0L;
|
|
|
|
// Create "regstack" and "backpos" if they are not allocated yet.
|
|
// We allocate *_INITIAL amount of bytes first and then set the grow size
|
|
// to much bigger value to avoid many malloc calls in case of deep regular
|
|
// expressions.
|
|
if (regstack.ga_data == NULL)
|
|
{
|
|
// Use an item size of 1 byte, since we push different things
|
|
// onto the regstack.
|
|
ga_init2(®stack, 1, REGSTACK_INITIAL);
|
|
(void)ga_grow(®stack, REGSTACK_INITIAL);
|
|
regstack.ga_growsize = REGSTACK_INITIAL * 8;
|
|
}
|
|
|
|
if (backpos.ga_data == NULL)
|
|
{
|
|
ga_init2(&backpos, sizeof(backpos_T), BACKPOS_INITIAL);
|
|
(void)ga_grow(&backpos, BACKPOS_INITIAL);
|
|
backpos.ga_growsize = BACKPOS_INITIAL * 8;
|
|
}
|
|
|
|
if (REG_MULTI)
|
|
{
|
|
prog = (bt_regprog_T *)rex.reg_mmatch->regprog;
|
|
line = reg_getline((linenr_T)0);
|
|
rex.reg_startpos = rex.reg_mmatch->startpos;
|
|
rex.reg_endpos = rex.reg_mmatch->endpos;
|
|
}
|
|
else
|
|
{
|
|
prog = (bt_regprog_T *)rex.reg_match->regprog;
|
|
rex.reg_startp = rex.reg_match->startp;
|
|
rex.reg_endp = rex.reg_match->endp;
|
|
}
|
|
|
|
// Be paranoid...
|
|
if (prog == NULL || line == NULL)
|
|
{
|
|
iemsg(e_null_argument);
|
|
goto theend;
|
|
}
|
|
|
|
// Check validity of program.
|
|
if (prog_magic_wrong())
|
|
goto theend;
|
|
|
|
// If the start column is past the maximum column: no need to try.
|
|
if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol)
|
|
goto theend;
|
|
|
|
// If pattern contains "\c" or "\C": overrule value of rex.reg_ic
|
|
if (prog->regflags & RF_ICASE)
|
|
rex.reg_ic = TRUE;
|
|
else if (prog->regflags & RF_NOICASE)
|
|
rex.reg_ic = FALSE;
|
|
|
|
// If pattern contains "\Z" overrule value of rex.reg_icombine
|
|
if (prog->regflags & RF_ICOMBINE)
|
|
rex.reg_icombine = TRUE;
|
|
|
|
// If there is a "must appear" string, look for it.
|
|
if (prog->regmust != NULL)
|
|
{
|
|
int c;
|
|
|
|
if (has_mbyte)
|
|
c = (*mb_ptr2char)(prog->regmust);
|
|
else
|
|
c = *prog->regmust;
|
|
s = line + col;
|
|
|
|
// This is used very often, esp. for ":global". Use three versions of
|
|
// the loop to avoid overhead of conditions.
|
|
if (!rex.reg_ic && !has_mbyte)
|
|
while ((s = vim_strbyte(s, c)) != NULL)
|
|
{
|
|
if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0)
|
|
break; // Found it.
|
|
++s;
|
|
}
|
|
else if (!rex.reg_ic || (!enc_utf8 && mb_char2len(c) > 1))
|
|
while ((s = vim_strchr(s, c)) != NULL)
|
|
{
|
|
if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0)
|
|
break; // Found it.
|
|
MB_PTR_ADV(s);
|
|
}
|
|
else
|
|
while ((s = cstrchr(s, c)) != NULL)
|
|
{
|
|
if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0)
|
|
break; // Found it.
|
|
MB_PTR_ADV(s);
|
|
}
|
|
if (s == NULL) // Not present.
|
|
goto theend;
|
|
}
|
|
|
|
rex.line = line;
|
|
rex.lnum = 0;
|
|
reg_toolong = FALSE;
|
|
|
|
// Simplest case: Anchored match need be tried only once.
|
|
if (prog->reganch)
|
|
{
|
|
int c;
|
|
|
|
if (has_mbyte)
|
|
c = (*mb_ptr2char)(rex.line + col);
|
|
else
|
|
c = rex.line[col];
|
|
if (prog->regstart == NUL
|
|
|| prog->regstart == c
|
|
|| (rex.reg_ic
|
|
&& (((enc_utf8 && utf_fold(prog->regstart) == utf_fold(c)))
|
|
|| (c < 255 && prog->regstart < 255 &&
|
|
MB_TOLOWER(prog->regstart) == MB_TOLOWER(c)))))
|
|
retval = regtry(prog, col, timed_out);
|
|
else
|
|
retval = 0;
|
|
}
|
|
else
|
|
{
|
|
// Messy cases: unanchored match.
|
|
while (!got_int)
|
|
{
|
|
if (prog->regstart != NUL)
|
|
{
|
|
// Skip until the char we know it must start with.
|
|
// Used often, do some work to avoid call overhead.
|
|
if (!rex.reg_ic && !has_mbyte)
|
|
s = vim_strbyte(rex.line + col, prog->regstart);
|
|
else
|
|
s = cstrchr(rex.line + col, prog->regstart);
|
|
if (s == NULL)
|
|
{
|
|
retval = 0;
|
|
break;
|
|
}
|
|
col = (int)(s - rex.line);
|
|
}
|
|
|
|
// Check for maximum column to try.
|
|
if (rex.reg_maxcol > 0 && col >= rex.reg_maxcol)
|
|
{
|
|
retval = 0;
|
|
break;
|
|
}
|
|
|
|
retval = regtry(prog, col, timed_out);
|
|
if (retval > 0)
|
|
break;
|
|
|
|
// if not currently on the first line, get it again
|
|
if (rex.lnum != 0)
|
|
{
|
|
rex.lnum = 0;
|
|
rex.line = reg_getline((linenr_T)0);
|
|
}
|
|
if (rex.line[col] == NUL)
|
|
break;
|
|
if (has_mbyte)
|
|
col += (*mb_ptr2len)(rex.line + col);
|
|
else
|
|
++col;
|
|
#ifdef FEAT_RELTIME
|
|
if (bt_did_time_out(timed_out))
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
theend:
|
|
// Free "reg_tofree" when it's a bit big.
|
|
// Free regstack and backpos if they are bigger than their initial size.
|
|
if (reg_tofreelen > 400)
|
|
VIM_CLEAR(reg_tofree);
|
|
if (regstack.ga_maxlen > REGSTACK_INITIAL)
|
|
ga_clear(®stack);
|
|
if (backpos.ga_maxlen > BACKPOS_INITIAL)
|
|
ga_clear(&backpos);
|
|
|
|
if (retval > 0)
|
|
{
|
|
// Make sure the end is never before the start. Can happen when \zs
|
|
// and \ze are used.
|
|
if (REG_MULTI)
|
|
{
|
|
lpos_T *start = &rex.reg_mmatch->startpos[0];
|
|
lpos_T *end = &rex.reg_mmatch->endpos[0];
|
|
|
|
if (end->lnum < start->lnum
|
|
|| (end->lnum == start->lnum && end->col < start->col))
|
|
rex.reg_mmatch->endpos[0] = rex.reg_mmatch->startpos[0];
|
|
|
|
// startpos[0] may be set by "\zs", also return the column where
|
|
// the whole pattern matched.
|
|
rex.reg_mmatch->rmm_matchcol = col;
|
|
}
|
|
else
|
|
{
|
|
if (rex.reg_match->endp[0] < rex.reg_match->startp[0])
|
|
rex.reg_match->endp[0] = rex.reg_match->startp[0];
|
|
|
|
// startpos[0] may be set by "\zs", also return the column where
|
|
// the whole pattern matched.
|
|
rex.reg_match->rm_matchcol = col;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Match a regexp against a string.
|
|
* "rmp->regprog" is a compiled regexp as returned by vim_regcomp().
|
|
* Uses curbuf for line count and 'iskeyword'.
|
|
* if "line_lbr" is TRUE consider a "\n" in "line" to be a line break.
|
|
*
|
|
* Returns 0 for failure, number of lines contained in the match otherwise.
|
|
*/
|
|
static int
|
|
bt_regexec_nl(
|
|
regmatch_T *rmp,
|
|
char_u *line, // string to match against
|
|
colnr_T col, // column to start looking for match
|
|
int line_lbr)
|
|
{
|
|
rex.reg_match = rmp;
|
|
rex.reg_mmatch = NULL;
|
|
rex.reg_maxline = 0;
|
|
rex.reg_line_lbr = line_lbr;
|
|
rex.reg_buf = curbuf;
|
|
rex.reg_win = NULL;
|
|
rex.reg_ic = rmp->rm_ic;
|
|
rex.reg_icombine = FALSE;
|
|
rex.reg_maxcol = 0;
|
|
|
|
return bt_regexec_both(line, col, NULL);
|
|
}
|
|
|
|
/*
|
|
* Match a regexp against multiple lines.
|
|
* "rmp->regprog" is a compiled regexp as returned by vim_regcomp().
|
|
* Uses curbuf for line count and 'iskeyword'.
|
|
*
|
|
* Return zero if there is no match. Return number of lines contained in the
|
|
* match otherwise.
|
|
*/
|
|
static long
|
|
bt_regexec_multi(
|
|
regmmatch_T *rmp,
|
|
win_T *win, // window in which to search or NULL
|
|
buf_T *buf, // buffer in which to search
|
|
linenr_T lnum, // nr of line to start looking for match
|
|
colnr_T col, // column to start looking for match
|
|
int *timed_out) // flag set on timeout or NULL
|
|
{
|
|
init_regexec_multi(rmp, win, buf, lnum);
|
|
return bt_regexec_both(NULL, col, timed_out);
|
|
}
|
|
|
|
/*
|
|
* Compare a number with the operand of RE_LNUM, RE_COL or RE_VCOL.
|
|
*/
|
|
static int
|
|
re_num_cmp(long_u val, char_u *scan)
|
|
{
|
|
long_u n = OPERAND_MIN(scan);
|
|
|
|
if (OPERAND_CMP(scan) == '>')
|
|
return val > n;
|
|
if (OPERAND_CMP(scan) == '<')
|
|
return val < n;
|
|
return val == n;
|
|
}
|
|
|
|
#ifdef BT_REGEXP_DUMP
|
|
|
|
/*
|
|
* regdump - dump a regexp onto stdout in vaguely comprehensible form
|
|
*/
|
|
static void
|
|
regdump(char_u *pattern, bt_regprog_T *r)
|
|
{
|
|
char_u *s;
|
|
int op = EXACTLY; // Arbitrary non-END op.
|
|
char_u *next;
|
|
char_u *end = NULL;
|
|
FILE *f;
|
|
|
|
#ifdef BT_REGEXP_LOG
|
|
f = fopen("bt_regexp_log.log", "a");
|
|
#else
|
|
f = stdout;
|
|
#endif
|
|
if (f == NULL)
|
|
return;
|
|
fprintf(f, "-------------------------------------\n\r\nregcomp(%s):\r\n", pattern);
|
|
|
|
s = r->program + 1;
|
|
// Loop until we find the END that isn't before a referred next (an END
|
|
// can also appear in a NOMATCH operand).
|
|
while (op != END || s <= end)
|
|
{
|
|
op = OP(s);
|
|
fprintf(f, "%2d%s", (int)(s - r->program), regprop(s)); // Where, what.
|
|
next = regnext(s);
|
|
if (next == NULL) // Next ptr.
|
|
fprintf(f, "(0)");
|
|
else
|
|
fprintf(f, "(%d)", (int)((s - r->program) + (next - s)));
|
|
if (end < next)
|
|
end = next;
|
|
if (op == BRACE_LIMITS)
|
|
{
|
|
// Two ints
|
|
fprintf(f, " minval %ld, maxval %ld", OPERAND_MIN(s), OPERAND_MAX(s));
|
|
s += 8;
|
|
}
|
|
else if (op == BEHIND || op == NOBEHIND)
|
|
{
|
|
// one int
|
|
fprintf(f, " count %ld", OPERAND_MIN(s));
|
|
s += 4;
|
|
}
|
|
else if (op == RE_LNUM || op == RE_COL || op == RE_VCOL)
|
|
{
|
|
// one int plus comparator
|
|
fprintf(f, " count %ld", OPERAND_MIN(s));
|
|
s += 5;
|
|
}
|
|
s += 3;
|
|
if (op == ANYOF || op == ANYOF + ADD_NL
|
|
|| op == ANYBUT || op == ANYBUT + ADD_NL
|
|
|| op == EXACTLY)
|
|
{
|
|
// Literal string, where present.
|
|
fprintf(f, "\nxxxxxxxxx\n");
|
|
while (*s != NUL)
|
|
fprintf(f, "%c", *s++);
|
|
fprintf(f, "\nxxxxxxxxx\n");
|
|
s++;
|
|
}
|
|
fprintf(f, "\r\n");
|
|
}
|
|
|
|
// Header fields of interest.
|
|
if (r->regstart != NUL)
|
|
fprintf(f, "start `%s' 0x%x; ", r->regstart < 256
|
|
? (char *)transchar(r->regstart)
|
|
: "multibyte", r->regstart);
|
|
if (r->reganch)
|
|
fprintf(f, "anchored; ");
|
|
if (r->regmust != NULL)
|
|
fprintf(f, "must have \"%s\"", r->regmust);
|
|
fprintf(f, "\r\n");
|
|
|
|
#ifdef BT_REGEXP_LOG
|
|
fclose(f);
|
|
#endif
|
|
}
|
|
#endif // BT_REGEXP_DUMP
|
|
|
|
#ifdef DEBUG
|
|
/*
|
|
* regprop - printable representation of opcode
|
|
*/
|
|
static char_u *
|
|
regprop(char_u *op)
|
|
{
|
|
char *p;
|
|
static char buf[50];
|
|
|
|
STRCPY(buf, ":");
|
|
|
|
switch ((int) OP(op))
|
|
{
|
|
case BOL:
|
|
p = "BOL";
|
|
break;
|
|
case EOL:
|
|
p = "EOL";
|
|
break;
|
|
case RE_BOF:
|
|
p = "BOF";
|
|
break;
|
|
case RE_EOF:
|
|
p = "EOF";
|
|
break;
|
|
case CURSOR:
|
|
p = "CURSOR";
|
|
break;
|
|
case RE_VISUAL:
|
|
p = "RE_VISUAL";
|
|
break;
|
|
case RE_LNUM:
|
|
p = "RE_LNUM";
|
|
break;
|
|
case RE_MARK:
|
|
p = "RE_MARK";
|
|
break;
|
|
case RE_COL:
|
|
p = "RE_COL";
|
|
break;
|
|
case RE_VCOL:
|
|
p = "RE_VCOL";
|
|
break;
|
|
case BOW:
|
|
p = "BOW";
|
|
break;
|
|
case EOW:
|
|
p = "EOW";
|
|
break;
|
|
case ANY:
|
|
p = "ANY";
|
|
break;
|
|
case ANY + ADD_NL:
|
|
p = "ANY+NL";
|
|
break;
|
|
case ANYOF:
|
|
p = "ANYOF";
|
|
break;
|
|
case ANYOF + ADD_NL:
|
|
p = "ANYOF+NL";
|
|
break;
|
|
case ANYBUT:
|
|
p = "ANYBUT";
|
|
break;
|
|
case ANYBUT + ADD_NL:
|
|
p = "ANYBUT+NL";
|
|
break;
|
|
case IDENT:
|
|
p = "IDENT";
|
|
break;
|
|
case IDENT + ADD_NL:
|
|
p = "IDENT+NL";
|
|
break;
|
|
case SIDENT:
|
|
p = "SIDENT";
|
|
break;
|
|
case SIDENT + ADD_NL:
|
|
p = "SIDENT+NL";
|
|
break;
|
|
case KWORD:
|
|
p = "KWORD";
|
|
break;
|
|
case KWORD + ADD_NL:
|
|
p = "KWORD+NL";
|
|
break;
|
|
case SKWORD:
|
|
p = "SKWORD";
|
|
break;
|
|
case SKWORD + ADD_NL:
|
|
p = "SKWORD+NL";
|
|
break;
|
|
case FNAME:
|
|
p = "FNAME";
|
|
break;
|
|
case FNAME + ADD_NL:
|
|
p = "FNAME+NL";
|
|
break;
|
|
case SFNAME:
|
|
p = "SFNAME";
|
|
break;
|
|
case SFNAME + ADD_NL:
|
|
p = "SFNAME+NL";
|
|
break;
|
|
case PRINT:
|
|
p = "PRINT";
|
|
break;
|
|
case PRINT + ADD_NL:
|
|
p = "PRINT+NL";
|
|
break;
|
|
case SPRINT:
|
|
p = "SPRINT";
|
|
break;
|
|
case SPRINT + ADD_NL:
|
|
p = "SPRINT+NL";
|
|
break;
|
|
case WHITE:
|
|
p = "WHITE";
|
|
break;
|
|
case WHITE + ADD_NL:
|
|
p = "WHITE+NL";
|
|
break;
|
|
case NWHITE:
|
|
p = "NWHITE";
|
|
break;
|
|
case NWHITE + ADD_NL:
|
|
p = "NWHITE+NL";
|
|
break;
|
|
case DIGIT:
|
|
p = "DIGIT";
|
|
break;
|
|
case DIGIT + ADD_NL:
|
|
p = "DIGIT+NL";
|
|
break;
|
|
case NDIGIT:
|
|
p = "NDIGIT";
|
|
break;
|
|
case NDIGIT + ADD_NL:
|
|
p = "NDIGIT+NL";
|
|
break;
|
|
case HEX:
|
|
p = "HEX";
|
|
break;
|
|
case HEX + ADD_NL:
|
|
p = "HEX+NL";
|
|
break;
|
|
case NHEX:
|
|
p = "NHEX";
|
|
break;
|
|
case NHEX + ADD_NL:
|
|
p = "NHEX+NL";
|
|
break;
|
|
case OCTAL:
|
|
p = "OCTAL";
|
|
break;
|
|
case OCTAL + ADD_NL:
|
|
p = "OCTAL+NL";
|
|
break;
|
|
case NOCTAL:
|
|
p = "NOCTAL";
|
|
break;
|
|
case NOCTAL + ADD_NL:
|
|
p = "NOCTAL+NL";
|
|
break;
|
|
case WORD:
|
|
p = "WORD";
|
|
break;
|
|
case WORD + ADD_NL:
|
|
p = "WORD+NL";
|
|
break;
|
|
case NWORD:
|
|
p = "NWORD";
|
|
break;
|
|
case NWORD + ADD_NL:
|
|
p = "NWORD+NL";
|
|
break;
|
|
case HEAD:
|
|
p = "HEAD";
|
|
break;
|
|
case HEAD + ADD_NL:
|
|
p = "HEAD+NL";
|
|
break;
|
|
case NHEAD:
|
|
p = "NHEAD";
|
|
break;
|
|
case NHEAD + ADD_NL:
|
|
p = "NHEAD+NL";
|
|
break;
|
|
case ALPHA:
|
|
p = "ALPHA";
|
|
break;
|
|
case ALPHA + ADD_NL:
|
|
p = "ALPHA+NL";
|
|
break;
|
|
case NALPHA:
|
|
p = "NALPHA";
|
|
break;
|
|
case NALPHA + ADD_NL:
|
|
p = "NALPHA+NL";
|
|
break;
|
|
case LOWER:
|
|
p = "LOWER";
|
|
break;
|
|
case LOWER + ADD_NL:
|
|
p = "LOWER+NL";
|
|
break;
|
|
case NLOWER:
|
|
p = "NLOWER";
|
|
break;
|
|
case NLOWER + ADD_NL:
|
|
p = "NLOWER+NL";
|
|
break;
|
|
case UPPER:
|
|
p = "UPPER";
|
|
break;
|
|
case UPPER + ADD_NL:
|
|
p = "UPPER+NL";
|
|
break;
|
|
case NUPPER:
|
|
p = "NUPPER";
|
|
break;
|
|
case NUPPER + ADD_NL:
|
|
p = "NUPPER+NL";
|
|
break;
|
|
case BRANCH:
|
|
p = "BRANCH";
|
|
break;
|
|
case EXACTLY:
|
|
p = "EXACTLY";
|
|
break;
|
|
case NOTHING:
|
|
p = "NOTHING";
|
|
break;
|
|
case BACK:
|
|
p = "BACK";
|
|
break;
|
|
case END:
|
|
p = "END";
|
|
break;
|
|
case MOPEN + 0:
|
|
p = "MATCH START";
|
|
break;
|
|
case MOPEN + 1:
|
|
case MOPEN + 2:
|
|
case MOPEN + 3:
|
|
case MOPEN + 4:
|
|
case MOPEN + 5:
|
|
case MOPEN + 6:
|
|
case MOPEN + 7:
|
|
case MOPEN + 8:
|
|
case MOPEN + 9:
|
|
sprintf(buf + STRLEN(buf), "MOPEN%d", OP(op) - MOPEN);
|
|
p = NULL;
|
|
break;
|
|
case MCLOSE + 0:
|
|
p = "MATCH END";
|
|
break;
|
|
case MCLOSE + 1:
|
|
case MCLOSE + 2:
|
|
case MCLOSE + 3:
|
|
case MCLOSE + 4:
|
|
case MCLOSE + 5:
|
|
case MCLOSE + 6:
|
|
case MCLOSE + 7:
|
|
case MCLOSE + 8:
|
|
case MCLOSE + 9:
|
|
sprintf(buf + STRLEN(buf), "MCLOSE%d", OP(op) - MCLOSE);
|
|
p = NULL;
|
|
break;
|
|
case BACKREF + 1:
|
|
case BACKREF + 2:
|
|
case BACKREF + 3:
|
|
case BACKREF + 4:
|
|
case BACKREF + 5:
|
|
case BACKREF + 6:
|
|
case BACKREF + 7:
|
|
case BACKREF + 8:
|
|
case BACKREF + 9:
|
|
sprintf(buf + STRLEN(buf), "BACKREF%d", OP(op) - BACKREF);
|
|
p = NULL;
|
|
break;
|
|
case NOPEN:
|
|
p = "NOPEN";
|
|
break;
|
|
case NCLOSE:
|
|
p = "NCLOSE";
|
|
break;
|
|
#ifdef FEAT_SYN_HL
|
|
case ZOPEN + 1:
|
|
case ZOPEN + 2:
|
|
case ZOPEN + 3:
|
|
case ZOPEN + 4:
|
|
case ZOPEN + 5:
|
|
case ZOPEN + 6:
|
|
case ZOPEN + 7:
|
|
case ZOPEN + 8:
|
|
case ZOPEN + 9:
|
|
sprintf(buf + STRLEN(buf), "ZOPEN%d", OP(op) - ZOPEN);
|
|
p = NULL;
|
|
break;
|
|
case ZCLOSE + 1:
|
|
case ZCLOSE + 2:
|
|
case ZCLOSE + 3:
|
|
case ZCLOSE + 4:
|
|
case ZCLOSE + 5:
|
|
case ZCLOSE + 6:
|
|
case ZCLOSE + 7:
|
|
case ZCLOSE + 8:
|
|
case ZCLOSE + 9:
|
|
sprintf(buf + STRLEN(buf), "ZCLOSE%d", OP(op) - ZCLOSE);
|
|
p = NULL;
|
|
break;
|
|
case ZREF + 1:
|
|
case ZREF + 2:
|
|
case ZREF + 3:
|
|
case ZREF + 4:
|
|
case ZREF + 5:
|
|
case ZREF + 6:
|
|
case ZREF + 7:
|
|
case ZREF + 8:
|
|
case ZREF + 9:
|
|
sprintf(buf + STRLEN(buf), "ZREF%d", OP(op) - ZREF);
|
|
p = NULL;
|
|
break;
|
|
#endif
|
|
case STAR:
|
|
p = "STAR";
|
|
break;
|
|
case PLUS:
|
|
p = "PLUS";
|
|
break;
|
|
case NOMATCH:
|
|
p = "NOMATCH";
|
|
break;
|
|
case MATCH:
|
|
p = "MATCH";
|
|
break;
|
|
case BEHIND:
|
|
p = "BEHIND";
|
|
break;
|
|
case NOBEHIND:
|
|
p = "NOBEHIND";
|
|
break;
|
|
case SUBPAT:
|
|
p = "SUBPAT";
|
|
break;
|
|
case BRACE_LIMITS:
|
|
p = "BRACE_LIMITS";
|
|
break;
|
|
case BRACE_SIMPLE:
|
|
p = "BRACE_SIMPLE";
|
|
break;
|
|
case BRACE_COMPLEX + 0:
|
|
case BRACE_COMPLEX + 1:
|
|
case BRACE_COMPLEX + 2:
|
|
case BRACE_COMPLEX + 3:
|
|
case BRACE_COMPLEX + 4:
|
|
case BRACE_COMPLEX + 5:
|
|
case BRACE_COMPLEX + 6:
|
|
case BRACE_COMPLEX + 7:
|
|
case BRACE_COMPLEX + 8:
|
|
case BRACE_COMPLEX + 9:
|
|
sprintf(buf + STRLEN(buf), "BRACE_COMPLEX%d", OP(op) - BRACE_COMPLEX);
|
|
p = NULL;
|
|
break;
|
|
case MULTIBYTECODE:
|
|
p = "MULTIBYTECODE";
|
|
break;
|
|
case NEWL:
|
|
p = "NEWL";
|
|
break;
|
|
default:
|
|
sprintf(buf + STRLEN(buf), "corrupt %d", OP(op));
|
|
p = NULL;
|
|
break;
|
|
}
|
|
if (p != NULL)
|
|
STRCAT(buf, p);
|
|
return (char_u *)buf;
|
|
}
|
|
#endif // DEBUG
|