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146 lines
4.4 KiB
VimL
146 lines
4.4 KiB
VimL
" Vim syntax file
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" Language: Modula-3
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" Maintainer: Doug Kearns <dougkearns@gmail.com>
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" Previous Maintainer: Timo Pedersen <dat97tpe@ludat.lth.se>
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" Last Change: 2022 Oct 31
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if exists("b:current_syntax")
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finish
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endif
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" Whitespace errors {{{1
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if exists("modula3_space_errors")
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if !exists("modula3_no_trail_space_error")
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syn match modula3SpaceError display excludenl "\s\+$"
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endif
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if !exists("modula3_no_tab_space_error")
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syn match modula3SpaceError display " \+\t"me=e-1
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endif
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endif
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" Keywords {{{1
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syn keyword modula3Keyword ANY ARRAY AS BITS BRANDED BY CASE CONST
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syn keyword modula3Keyword DEFINITION EVAL EXIT EXCEPT EXCEPTION EXIT
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syn keyword modula3Keyword EXPORTS FINALLY FROM GENERIC IMPORT LOCK METHOD
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syn keyword modula3Keyword OF RAISE RAISES READONLY RECORD REF
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syn keyword modula3Keyword RETURN SET TRY TYPE TYPECASE UNSAFE
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syn keyword modula3Keyword VALUE VAR WITH
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syn match modula3keyword "\<UNTRACED\>"
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" Special keywords, block delimiters etc
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syn keyword modula3Block PROCEDURE FUNCTION MODULE INTERFACE REPEAT THEN
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syn keyword modula3Block BEGIN END OBJECT METHODS OVERRIDES RECORD REVEAL
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syn keyword modula3Block WHILE UNTIL DO TO IF FOR ELSIF ELSE LOOP
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" Reserved identifiers {{{1
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syn keyword modula3Identifier ABS ADR ADRSIZE BITSIZE BYTESIZE CEILING DEC
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syn keyword modula3Identifier DISPOSE FIRST FLOAT FLOOR INC ISTYPE LAST
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syn keyword modula3Identifier LOOPHOLE MAX MIN NARROW NEW NUMBER ORD ROUND
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syn keyword modula3Identifier SUBARRAY TRUNC TYPECODE VAL
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" Predefined types {{{1
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syn keyword modula3Type ADDRESS BOOLEAN CARDINAL CHAR EXTENDED INTEGER
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syn keyword modula3Type LONGCARD LONGINT LONGREAL MUTEX NULL REAL REFANY TEXT
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syn keyword modula3Type WIDECHAR
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syn match modula3Type "\<\%(UNTRACED\s\+\)\=ROOT\>"
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" Operators {{{1
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syn keyword modula3Operator DIV MOD
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syn keyword modula3Operator IN
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syn keyword modula3Operator NOT AND OR
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" TODO: exclude = from declarations
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if exists("modula3_operators")
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syn match modula3Operator "\^"
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syn match modula3Operator "[-+/*]"
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syn match modula3Operator "&"
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syn match modula3Operator "<=\|<:\@!\|>=\|>"
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syn match modula3Operator ":\@<!=\|#"
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endif
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" Literals {{{1
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" Booleans
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syn keyword modula3Boolean TRUE FALSE
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" Nil
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syn keyword modula3Nil NIL
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" Numbers {{{2
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" NOTE: Negated numbers are constant expressions not literals
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syn case ignore
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" Integers
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syn match modula3Integer "\<\d\+L\=\>"
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if exists("modula3_number_errors")
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syn match modula3IntegerError "\<\d\d\=_\x\+L\=\>"
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endif
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let s:digits = "0123456789ABCDEF"
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for s:radix in range(2, 16)
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exe $'syn match modula3Integer "\<{s:radix}_[{s:digits[:s:radix - 1]}]\+L\=\>"'
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endfor
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unlet s:digits s:radix
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" Reals
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syn match modula3Real "\<\d\+\.\d\+\%([EDX][+-]\=\d\+\)\=\>"
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syn case match
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" Strings and characters {{{2
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" String escape sequences
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syn match modula3Escape "\\['"ntrf]" contained display
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" TODO: limit to <= 377 (255)
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syn match modula3Escape "\\\o\{3}" contained display
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syn match modula3Escape "\\\\" contained display
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" Characters
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syn match modula3Character "'\%([^']\|\\.\|\\\o\{3}\)'" contains=modula3Escape
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" Strings
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syn region modula3String start=+"+ end=+"+ contains=modula3Escape
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" Pragmas {{{1
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" EXTERNAL INLINE ASSERT TRACE FATAL UNUSED OBSOLETE CALLBACK EXPORTED PRAGMA NOWARN LINE LL LL.sup SPEC
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" Documented: INLINE ASSERT TRACE FATAL UNUSED OBSOLETE NOWARN
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syn region modula3Pragma start="<\*" end="\*>"
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" Comments {{{1
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if !exists("modula3_no_comment_fold")
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syn region modula3Comment start="(\*" end="\*)" contains=modula3Comment,@Spell fold
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syn region modula3LineCommentBlock start="^\s*(\*.*\*)\s*\n\%(^\s*(\*.*\*)\s*$\)\@=" end="^\s*(\*.*\*)\s*\n\%(^\s*(\*.*\*)\s*$\)\@!" contains=modula3Comment transparent fold keepend
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else
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syn region modula3Comment start="(\*" end="\*)" contains=modula3Comment,@Spell
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endif
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" Syncing "{{{1
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syn sync minlines=100
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" Default highlighting {{{1
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hi def link modula3Block Statement
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hi def link modula3Boolean Boolean
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hi def link modula3Character Character
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hi def link modula3Comment Comment
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hi def link modula3Escape Special
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hi def link modula3Identifier Keyword
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hi def link modula3Integer Number
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hi def link modula3Keyword Statement
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hi def link modula3Nil Constant
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hi def link modula3IntegerError Error
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hi def link modula3Operator Operator
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hi def link modula3Pragma PreProc
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hi def link modula3Real Float
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hi def link modula3String String
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hi def link modula3Type Type "}}}
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let b:current_syntax = "modula3"
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" vim: nowrap sw=2 sts=2 ts=8 noet fdm=marker:
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