Initial commit.

2022-02-08 15:11:56 -04:00 · 2022-02-08 15:11:56 -04:00 · 230e5ec41d
commit 230e5ec41d
115 changed files with 11471 additions and 0 deletions
--- a/27
+++ b/27
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+2022-02-08  Mid Favila   <midfavila@sdf.org>  
+
+ * Set version to 3.0.2.
+ * Revert to Makefile build system.
+ * Remove e-mail handling capabilities.
+
+2013-03-24  Thomas Cort  <tcort@se-editor.org>
+
+ * Version 3.0.1 released.
+ * Security Fix: be more careful with the handling of .serc files. Now the
+   euid of se must match the owner of the file and the file must not be
+   writable by any other users in order for se to execute it. Thank you 
+   to Matthias Kilian of the OpenBSD project for alerting me to this issue.
+
+2013-03-06  Thomas Cort  <tcort@se-editor.org>
+
+ * Version 3.0 released.
+ * Convert the build system to automake/autoconf.
+ * Modernize the K&R style function prototypes. Resolve compiler warnings.
+ * Use safer versions of string functions  (snprintf, strncpy, etc).
+ * Rename some functions to avoid naming conflicts (delete, index, etc).
+ * Port to Linux, BSD, GNU, Haiku, Minix, OpenSolaris, and others.
+ * Add support for termios, make termio the fallback.
+ * Drop HARD_TERMS, OLD_SCRATCH, and OLD_GLOB options.
+ * Remove hardcoded paths, get them from autoconf now.
+ * Use syslog for optional usage logging instead of a file in /usr/tmp.
+ * Add a sample .serc file.
--- a/6
+++ b/6
@ -0,0 +1,6 @@
+The se source code and associated files are in the public domain.
+
+There are a few output files from autoconf/automake (configure, Makefile, etc)
+which contain copyright notices. Those notices give unlimited permission to
+copy and/or distribute the files, with or without modifications, as long as
+the notices are preserved.
--- a/19
+++ b/19
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+2022.02.08 - Convert to Makefile build system.
+
+2022.02.07 - Forked se 3.0.1. 
+
+2013.03.24 - se 3.0.1 has been released. This is a security release. It is 
+		recommended that all users upgrade. The release fixes 
+		insecure handling of .serc files. The new behaviour is 
+		to ignore .serc files that aren't owned by the euid of 
+		the se process and .serc files that are writable by 
+		other users. No other changes are included in this 
+		release. Thank you to Matthias Kilian of the OpenBSD 
+		project for alerting me to this issue.
+
+2013.03.06 - se 3.0 has been released. This release includes major portability
+		enhancements and build system changes. The old makefile based
+		build system has been replaced with a slick new autotools
+		configure script. This, combined with some code modernization,
+		allows se to build and run on a variety of platforms. See the
+		ChangeLog for details.
--- a/39
+++ b/39
@ -0,0 +1,39 @@
+MSE, or the Minimal Screen Editor, is a screen-oriented version of the
+Unix editor ed. It contains a number of quirks, and is somewhat 
+idiosyncratic at times, but if you're patient I think you'll find it
+rather enjoyable.
+
+When I came across it (looking for an ed with a UI), I decided to start
+writing patches removing obsolete and unneeded code - eventually these
+will turn into my own version of a screen-oriented ed.
+
+ORIGINAL README FOLLOWS.
+-------------------------------------------------------------------------
+			http://se-editor.org/
+
+This is the source code for the text editor, se ('Screen Editor').
+se is a screen oriented version of the classic UNIX text editor ed.
+The editor implements many of the commands of ed, but instead of
+being line oriented, se is screen oriented.
+
+Se started out as the version of 'ed' that came with the book 'Software
+Tools', by Kernighan and Plauger, which was written in Ratfor. On the Pr1me
+computers at the School of Information and Computer Science at Georgia Tech,
+Dan Forsyth, Perry Flinn, and Alan Akin added all the enhancements suggested
+in the exercises in the book, and some more of their own. Jack Waugh made
+extensive modifications to turn it into a screen editor; further work was done
+by Dan Forsyth. All of this was in an improved Georgia Tech version of Ratfor.
+
+Later, Dan Forsyth, then at Medical Systems Development Corporation,
+converted the Ratfor version into C, for Berkeley Unix (4.1 BSD). At Georgia
+Tech, Arnold Robbins took the C version and added many new features and
+improvements, the most important of which was termcap support and System V
+support. The existing help screens were edited and completed at that time, as
+well. This was completed in early 1985.
+
+In early 2013, Thomas Cort continued maintenance of se, modernizing
+the code base and build system to support current POSIX operating systems.
+Thomas' primary motivation is to preserve this bit of computing history.
+His goals are to squash any remaining bugs and make se as portable as
+possible. No major new features will be added. He can be reached at
+tcort@se-editor.org
--- a/30
+++ b/30
@ -0,0 +1,30 @@
+This file lists potential improvements for future versions of se.
+
+ - Remove code not related to supporting *nix
+ - Remove any non-portable (ideally POSIX but de facto works too) code
+ - Remove any code not related specifically to editing (email notifs, etc)
+ - Adjust line-editing to be more intuitive (maybe use a simple line-edit
+   library)
+ - Figure out why there appears to be a line limit on current file. Fix.
+ - Revert autotools build to makefile-based. [DONE - 2022/2/8]
+
+
+
+OLD SE TODO FOLLOWS. ENCLOSED IN BRACKETS ARE NEW NOTES.
+-----------------------------------------------------------------
+
+Documentation:
+
+	- tutorial (like vimtutor or `C-h t` in emacs) [not necessary]
+	- texinfo manual [use mandoc]
+
+Port to the following operating systems:
+
+	- FreeDOS  [just no]
+		(this is a high cost, low reward target, but it might be
+		an interesting platform to support).
+
+Other Improvements:
+
+	- Better usage() output with useful explainations.
+	- add a test suite (should be easy since we have scriptse already).
--- a/help/Makefile.am
+++ b/help/Makefile.am
@ -0,0 +1,11 @@
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+
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+	oy oz p pat patex q quote r rpt s scan serc shell specl t termchar  \
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+
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+++ b/help/Makefile.in
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+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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--- a/help/a
+++ b/help/a
@ -0,0 +1,16 @@
+         a    -- Append command
+
+              default range           syntax
+                          .           a
+
+        "a" is for appending new lines of text after a given line.  If
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+        after  the  current  line.  The last line appended becomes the
+        current line.  To signal the end of  the  appended  text,  you
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+        "l",  and  "k"  work differently for "a" command than for "v".
+        "a:"  works as a one line append (i.e. anything following  the
+        colon is appended after the current line).
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hcc" (control characters) and "hc" (change).
--- a/help/abt
+++ b/help/abt
@ -0,0 +1,12 @@
+                               Abort character                                
+
+        CTRL-F ("Funny Return") character  is  used  to  abort  a  "v"
+        command  before  all  the  specified lines have been modified.
+        Typing it causes the current line to be restored to its  state
+        of  before  the  "v" command was begun, and causes a return to
+        the editor's command level.
+
+
+        Type "hv" for a description of the "v" command.
+        Type "hrpt" for CTRL-F's meaning if in append or command mode.
+        Type "htermchar" for info about other termination characters.
--- a/help/ah
+++ b/help/ah
@ -0,0 +1,6 @@
+
+          If you're running Berkeley Unix, and you're bored
+          Type the following command for something enjoyable:
+
+          !rogue
+
--- a/help/arg2
+++ b/help/arg2
@ -0,0 +1,16 @@
+                               Arguments (cont)
+
+        Once the terminal type  is  established,  the  remaining  arg-
+        uments  are  interpreted  thus:  if the argument begins with a
+        "-", the rest of it is interpreted as though it appeared after
+        the "o" in an option command.  For  example,  an  argument  of
+        "-w10"  acts  as  a command "ow10".  On the other hand, if the
+        argument does not begin with "-", it is interpreted as a  file
+        name  (path-  name).   The  named  file  is read into the edit
+        buffer, and its name becomes the  remembered  file  name.   If
+        more  than one file is named, the edit buffer will contain the
+        contents of all the files.  If  an  error is encountered while
+        interpreting arguments (file not found, illegal  option),  the
+        remainder will be ignored.
+
+        For invoking command syntax, type "hargs".
--- a/help/args
+++ b/help/args
@ -0,0 +1,9 @@
+                              Argument Handling
+
+        The syntax for 'se's invoking command is usually given as
+            se {-<option> | <pathname>}
+        It is suggested  that  you  set up a command  file  that  will
+        automatically invoke 'se' with the options that you like.
+
+        To see how the remaining arguments are treated, type "harg2".
+        To return to the general help directory, type "hdir".
--- a/help/b
+++ b/help/b
@ -0,0 +1,7 @@
+
+
+
+               There is no "b" command.
+   To return to the command directory, type "hcomdir."
+
+
--- a/help/bang
+++ b/help/bang
@ -0,0 +1,11 @@
+
+
+        ! --- exclude on markname
+
+        default range                   syntax
+          1,$                             !<m>command
+        
+        Similar to the "x" prefix, except that  "command" is performed
+        for all lines in the range that do not have the mark name <m>.
+
+        To return to the command directory, type "hcomdir".
--- a/help/bug
+++ b/help/bug
@ -0,0 +1,10 @@
+
+            There is a limit (MAXLINE - 2) on the number of characters
+        in a line. Se's MAXLINE is currently 512, so this isn't too much
+        of a problem.
+            If a filename is absent when invoked, all of the
+        options are not processed.
+
+
+        To go all the way back to the general help display, type "h".    
+        To go back to the general help directory, type "hdir."           
--- a/help/c
+++ b/help/c
@ -0,0 +1,14 @@
+          c    -- Change command
+
+               default range           syntax
+                    .,.                  c
+
+        "c"  first  deletes  the range of lines determined by the line
+        numbers (default ".,."), then enters append mode so  that  you
+        can  type  lines to replace the deleted lines.  Append mode is
+        terminated with a dot on a line by itself, as with the  Append
+        command. "c:" works as a one line change (i.e. what  is  after
+        the colon replaces the current line).
+
+        To return to the command directory, type "hcomdir."
+        See also   "ha" and "hd"
--- a/help/cc
+++ b/help/cc
@ -0,0 +1,13 @@
+
+        Control characters can be used for correcting typing mistakes,
+        for correcting commands that have incurred an error message,
+        or for editing the edit buffer ("inline editing") via the "v"
+        command.  The novice should be told right away that hitting
+        the DEL or RUBOUT key is a way to erase an erroneous command.
+
+        General Help Directory. . . . . . . . . . . . . . hdir
+        Other Control Characters. . . . . . . . . . . . . hccmisc
+        Character Insertion Control Characters. . . . . . hcharins
+        Termination Control Characters. . . . . . . . . . htermchar
+        Character Deletion Control Characters . . . . . . hchardel
+        Cursor Motion Control Characters. . . . . . . . . hmotion
--- a/help/ccmisc
+++ b/help/ccmisc
@ -0,0 +1,11 @@
+                       Miscellaneous Control Characters
+
+         CTRL-Z toggles an indicator that acts as a "shift lock",
+         controlling case mapping on alphabetics typed.
+
+         CTRL-Q signals the editor that you suspect that for some
+         reason the screen is garbaged.  The response is to clear and
+         restore the screen.
+
+
+         Type "hcc" to get back to the control character directory.
--- a/help/chardel
+++ b/help/chardel
@ -0,0 +1,12 @@
+                    Character Deletion Control Characters
+        Gobble one character
+          to left of cursor          CTRL-U
+          at cursor                  CTRL-R
+        Gobble all characters
+          to left of cursor          CTRL-Y
+          at and to right of cursor  CTRL-T
+          on entire line             DEL (a. k. a. RUBOUT)
+
+
+        "hdir" gets you back to the general help directory.
+        Type "hcc" to get back to the control character directory.
--- a/help/charins
+++ b/help/charins
@ -0,0 +1,14 @@
+                    Character Insertion Control Characters
+
+        CTRL-C inserts a blank at the cursor position.
+        CTRL-X inserts blanks to the next tab stop at the cursor position.
+        CTRL-A toggles Insert Mode.
+
+        When Insert Mode is in effect, any printing character typed is
+        inserted into the line, with characters at and to the right of
+        the cursor moving over to make room.  When Insert Mode is  not
+        in effect, any printing character typed will replace (overlay)
+        the character at the cursor.
+
+
+        To return to the directory of control characters, type "hcc".
--- a/help/colon
+++ b/help/colon
@ -0,0 +1,12 @@
+         :    -- Page command
+
+              default range           syntax
+                    .                 :
+
+      ":" is for paging the active area one page (n-1 lines)
+      forward.
+
+
+       For paging backward, see "hp"
+       See also:  "hcc" (control characters) and "hc" (change).
+       To return to the command directory, type "hcomdir."
--- a/help/com
+++ b/help/com
@ -0,0 +1,10 @@
+                                   Commands
+                                                                         
+        When  the "cmd>" prompt appears near the bottom of the screen,
+        a command may be typed.  Commands work for the most  part  the
+        same way as commands to 'ed', the Unix system text editor with
+        which you may be familiar.
+
+          To return to the general help directory, type "hdir".          
+          For information about specific commands, type "hcomdir".       
+          For details on command syntax, type "hcomsyn".                 
--- a/help/comdir
+++ b/help/comdir
@ -0,0 +1,18 @@
+
+                              Command Directory
+
+        The following are the full names of one-letter commands
+        Append            Change   Delete   Enter    File     Global
+        Help     Insert   Join     marK     Locate   Move     Name
+        Option   Page     Quit     Read     Substitute        To
+        Undelete oVerlay  Write    eXclude  translYterate
+
+        For info about one of these commands, type "h" followed by
+        whichever letter is capitalized in the command name above.
+
+        Other commands and their help commands are:
+            print value   hequal        global on mark   hquote
+            miscellany    hz            exclude on mark  htilde
+            shell escape  hshell        .serc file       hserc
+
+        There are still more commands; to see them type "hspecl".
--- a/help/comsyn
+++ b/help/comsyn
@ -0,0 +1,14 @@
+                                Command Syntax
+
+        A command consists  of  an  optional  list  of  LINE  NUMBERS,
+        followed  by a COMMAND LETTER, possibly followed by parameters
+        allowed or required for a specific  command.   Preceeding  all
+        this,  there  can be a GLOBAL PREFIX preceeded optionally by a
+        list  of  line   numbers.   Hence   the   whole   syntax   is:
+
+        [[<list>]<global prefix>][<list>]<command letter>[<stuff>]
+
+        For general information about commands, type "hcom".
+        For information about specific commands, type "hcomdir".
+        For GLOBAL PREFIX syntax and semantics, type "hg".
+        For LINE NUMBER LIST syntax and semantics, type "hlist".
--- a/help/d
+++ b/help/d
@ -0,0 +1,14 @@
+        d    -- Delete command
+
+               default range           syntax
+                         .,.           d
+
+        "d"  is  used  to  delete  lines of text from the buffer.  The
+        lines in the range specified  by  the  line  number  list  are
+        deleted.   The  positioning  of the current line pointer after
+        execution of the "d" command is controlled by the "d"  option;
+        see  "hod".   The  normal  behavior  is to make the first line
+        AFTER the lines deleted the new current line.
+
+        To return to the command directory, type "hcomdir."
+        See also "hod".
--- a/help/dir
+++ b/help/dir
@ -0,0 +1,10 @@
+                                HELP DIRECTORY
+
+
+        To go back to the general description, type        "h"
+        For info on the 'se' invoking command, type        "hargs"
+        For a discussion of commands,          type        "hcom"
+        For a description of 'se's problems,   type        "hbug"
+        To learn about control characters,     type        "hcc"
+        For info on options,                   type        "ho"
+
--- a/help/e
+++ b/help/e
@ -0,0 +1,16 @@
+          e    -- Enter command
+
+               default range           syntax
+                         n/a           e[! | x] [file name]
+
+        "e" prevents one from having to exit and reenter the editor to
+        edit  a  different file.  "e" empties the edit buffer, reads a
+        file, and resets the remembered file name.  If [file name]  is
+        omitted,  the  remembered  file  name is used.  [!] is used to
+        override a check made to prevent you from accidently losing  a
+        buffer that has not been saved (same as in "q"). [x]   is used
+        to turn tab expansion   on when reading the file in.  Se  will
+        expand environment variables that start with  $ in file names.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hq"
--- a/help/eh
+++ b/help/eh
@ -0,0 +1,11 @@
+    You are standing at the end of a road before a small brick building.
+    around you is a forest.  A small stream flows out of the building and
+    down a gully.
+
+
+    You are inside a building, a well house for a large spring.
+
+    There are some keys on the ground here.
+
+    There is a shiny brass lamp nearby.
+
--- a/help/elp
+++ b/help/elp
@ -0,0 +1,17 @@
+                                     Help
+
+        You are using 'se', the  Georgia  Tech screen editor which  is
+        based upon the editor described in the book SOFTWARE TOOLS, by
+        Brian W.  Kernighan  and  P.   J.   Plauger   (Addison-Wesley,
+        1976).   The  screen-oriented  modifications (and some others)
+        are by  Jack  Waugh and  Perry  Flinn.  Dan Forsyth translated
+        the Ratfor into C.  Arnold Robbins modified the editor to  use
+        the Berkeley termlib library, making the editor terminal inde-
+        pendant.  Most of this  'help' is  courtesy  of Bob  Gordon of
+        Prime  Research, as  amended by  Arnold Robbins.  The descrip-
+        tion before you now  is  invoked by the  "h" (help) command.
+
+        For a description of the 'help' command, type "hh".
+        Find out what the help command can tell you - type "hdir".
+
+        This is version 3.0.  It is maintained by  tcort@se-editor.org
--- a/help/equal
+++ b/help/equal
@ -0,0 +1,12 @@
+         =    -- Display Line Number command
+
+              default range           syntax
+                   .                  =
+
+      "=" is for determining the number of the current line
+      that you are editing.
+
+
+
+       To return to the command directory, type "hcomdir."
+       See also:  "hoa"
--- a/help/f
+++ b/help/f
@ -0,0 +1,16 @@
+        f -- File command
+
+             default range              syntax
+                  n/a               f [file name]
+
+        "f"  is  used to print or reset the name of the current file
+        being edited.  f [file name] resets the name for the current
+        file.  This filename is used by the "w", "e", and  "r"  com-
+        mands  when  no  parameters are provided.  f does not change
+        the "ok" toggle.  f with no parameters prints out the remem-
+        bered name.  In file names, Se will  expand  any  enviroment
+        variables that start with a $.
+
+        To  return  to  the  command directory, type "hcomdir."  See
+        also:  "he", "hw", "hr", and "hok".
+
--- a/help/g
+++ b/help/g
@ -0,0 +1,14 @@
+          g    -- Global command
+
+               default range           syntax
+                         1,$           g/pattern/command
+
+        "g"  is  used  to perform an editing command on all lines that
+        match the "pattern".   "pattern"  is  any  legal  pattern  and
+        command is an editor command.  The "x" command is the converse
+        of "g" and performs the command on all lines that do not match
+        the pattern.  The "/" may be any character.
+
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hx" and "hpat".
--- a/help/h
+++ b/help/h
@ -0,0 +1,12 @@
+          h    -- Help command
+
+               default range           syntax
+                         n/a           h[ null | parameter]
+
+        Typing  "h"  followed  by any character  string simply displays
+        the  contents of the se help script of that name at the top  of
+        the  screen  (provided  the  script  exists).  The  scripts are
+        files  in  the  directory  '/usr/local/share/se/help'.  If  the 
+        scriptname is omitted, "elp" is assumed.
+
+        To see a general directory of help scripts, type "hdir".
--- a/help/i
+++ b/help/i
@ -0,0 +1,18 @@
+         i    -- Insert command
+
+              default range           syntax
+                          .           i
+
+        "i"  is  for  inserting new lines of text before a given line.
+        If no line number is  typed  before  the  "i",  text  will  be
+        inserted  before  the  current  line.   Lines  are continually
+        inserted before the original line, which has the  same  effect
+        as  append  does.  To signal the end of the inserted text, you
+        only need to type  a  "."   on  a  line  by  itself.   Control
+        characters  "f",  "v",  "l",  and "k" work differently for "i"
+        command than for "v". "i:" works as a one line insert, similar
+        to "a:".
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hcc" (control characters) and  "hc"  (change)  and
+        "ha".
--- a/help/j
+++ b/help/j
@ -0,0 +1,15 @@
+
+        j -- Join command
+
+               default range           syntax
+                         ^,.           j[/string[/]]
+
+        "j"  is used to join the specified lines into a single line.
+        If "string" is present, it is inserted between each pair  of
+        lines  joined.  If not, a single blank is used.  "j/" is the
+        same "j//", i.e., no string at all will be inserted  between
+        the  joined  lines.   The  "/"  may  be  any character.  The
+        trailing delimiter is optional.
+
+        To return to the command directory, type "hcomdir."
+
--- a/help/k
+++ b/help/k
@ -0,0 +1,12 @@
+          k    -- marK command
+
+               default range           syntax
+                         .,.           k<single-character-name>
+
+        "k" is used to mark lines with the given name.
+        If no character is provided, the current label(s) in the
+        range are removed.
+
+
+        To return to the command directory, type "hcomdir."
+        See also: "hln" and "hn".
--- a/help/l
+++ b/help/l
@ -0,0 +1,16 @@
+
+        l -- Locate command
+
+             default range         syntax
+                none                  l
+
+        The  Locate  command  places the system name into the status
+        line (e.g.  "gatech" or "gitpyr").    This is  so  that  you
+        can tell  what  machine you are using from within the screen
+        editor.  This is particularly useful for installations  with
+        many  machines  that  can run the editor, where you are able
+        to  switch back and forth between them, and become  confused
+        as to where you are at a given moment.
+
+        To return to the command directory, type "hcomdir."
+
--- a/help/list
+++ b/help/list
@ -0,0 +1,15 @@
+                            List (of line numbers)
+
+        A  line  number list consists of one or more LINE NUMBERs sep-
+        arated with commas or semicolons.  The last two  line  numbers
+        in  the  list  usually  specify  the  scope of a command.  For
+        example, "5,7d" means delete lines 5 through 7.  If  the  list
+        consists  of  only one line number, it is equivalant to a list
+        with that line number written twice with a  comma  separating.
+        The  sense of the semicolon is to set the CURRENT LINE POINTER
+        to the value of the line number before  the  semicolon  before
+        evaluating  the  line  number after it, whose value may depend
+        upon the value of the current line pointer.
+
+        For command syntax, type "hcomsyn".
+        For LINE NUMBER syntax and semantics, type "hln".
--- a/help/ln
+++ b/help/ln
@ -0,0 +1,17 @@
+                                Line Numbers
+
+        A  LINE  NUMBER  refers  to  a line in the edit buffer.  The
+        lines are always numbered sequentially starting with  1.   A
+        line  number can be expressed as an integer, as "."  meaning
+        the CURRENT LINE, "^" or "-" meaning  the  line  before  the
+        current  line,  "$"  meaning  the  last  line,  as a PATTERN
+        enclosed in "/" slashes for a forward  scan,  as  a  pattern
+        enclosed  in  "?"   question marks for a backward scan, as a
+        MARK NAME preceeded by "<" for a backward search or  by  ">"
+        for  a forward search, or as any additive combination of the
+        above by joining them with operators "+",  "-",  or  nothing
+        (meaning "+").
+
+        Type "hlist" for line number list syntax.
+        For details on scans and searches, type "hscan".
+
--- a/help/m
+++ b/help/m
@ -0,0 +1,12 @@
+          m    -- Move command
+
+               default range           syntax
+                         .,.           from-here,to-here m there
+
+        "m" is used to move lines form one place in the buffer to
+        another.
+
+
+
+        To return to the command directory, type "hcomdir."
+        See also   "ht"
--- a/help/motion
+++ b/help/motion
@ -0,0 +1,14 @@
+                       Cursor Motion Control Characters
+
+        Moving the cursor one position:
+          left              CTRL-H
+          right             CTRL-G
+          up                CTRL-D
+          down              CTRL-K
+        Moving to the next tab stop:
+          left              CTRL-E
+          right             CTRL-I
+        Moving all the way to the left:                 CTRL-W
+        Moving to the current right end of the line:    CTRL-O
+
+        Type "hcc" for general information about control characters.
--- a/help/n
+++ b/help/n
@ -0,0 +1,11 @@
+          n    -- Name command
+
+               default range           syntax
+                         .,.           n<single-character-name>
+
+        "n" is used to uniquely mark a line.  if the same mark name is
+        already on other lines, it will be removed from them.
+
+
+        To  return to the command directory, type "hcomdir."  See also
+        "hk" and "hln"
--- a/help/o
+++ b/help/o
@ -0,0 +1,15 @@
+        o -- Option
+
+        The "o" (option) command allows any  of several variables  that
+        affect  the  editor's  behavior  to   be  set  or  tested.  The
+        behavior of the "o"  command depends upon what is  typed  after
+        the "o".
+
+        To  find out about  specific options, type "hoa", "hoc", "hod",
+        "hof", "hog", "hoh", "hoi", "hok", "hol", "holm", "hom", "hos",
+	"hot", "hou", "hov", "how", "hox", "hoy", "hoz", or "ho-".
+
+        To  see how to set options with the  command that invokes 'se',
+        type "hargs".
+
+        To return to the command directory, type "hcomdir".
--- a/help/o-
+++ b/help/o-
@ -0,0 +1,16 @@
+        o-  -- Option - (dash)
+
+               default range             syntax
+                  1,$                     o-[line number]
+
+        The "-" option controls the placement on the screen of  a  row
+        of dashes, which normally is off the screen above the top line
+        or  hiding  behind  the  bottom line of the help display.  The
+        "window" through which you look at the edit buffer is the por-
+        tion of the screen BELOW the  row  of  dashes  but  above  the
+        command  line  (when  it exists) or status line at the bottom.
+        "o-" alone puts the row of dashes above  the  top  line;  "o-"
+        followed  by a SINGLE TERM line number puts it in place of the
+        line referred to on the screen, if possible.
+
+        For general information about the option command, type "ho".
--- a/help/oa
+++ b/help/oa
@ -0,0 +1,17 @@
+        oa -- Option Absolute
+
+               default range             syntax
+                   1,$                     oa
+
+        "oa" toggles the Absolute line numbers flag, which  determines
+        whether  the numbers in the left margin shall be absolute line
+        numbers, or the (usually capital) letters that refer to  lines
+        by  the  position  at  which  they  are being displayed on the
+        screen.  In any case, the current line is always shown as  "."
+        (with  the "->" arrow to make it easy to find), the first line
+        in the buffer is labeled "1", and  the  last,  "$"  (when  not
+        ".").   Lines  can  be  referred  to  by  letter ONLY when the
+        letters appear in the left margin.
+
+        For general information about the option command, type "ho".
+        See also "hln" for how lines can be referred to in commands.
--- a/help/oc
+++ b/help/oc
@ -0,0 +1,16 @@
+        oc -- Option Case
+
+               default range             syntax
+                   1,$                     oc
+
+        The "c" (case) option toggles the same case mapping flag  that
+        is  toggled  by the CTRL-Z control character, but also changes
+        the marginal line letters to lower case (or back to upper), so
+        that typing a shifted letter will still refer to a  line,  and
+        typing an unshifted letter will do for a command letter.  This
+        is  useful for handling large amounts of upper case text, such
+        as Fortran programs.
+
+        For general information about the option command, type "ho".
+        See also "hoa".
+        Fortraners see also "hof".
--- a/help/od
+++ b/help/od
@ -0,0 +1,16 @@
+        od -- Option Delete
+
+               default range             syntax
+                  1,$                     od[<|>]
+
+        The "d" option is for Delete direction.  Typing "od<" fixes it
+        so  that  after  you  give  a "d" command, the line BEFORE the
+        group of lines deleted becomes the current line  (.).   Typing
+        "od>"  resets  the  normal behavior, in which the current line
+        pointer is always positioned AFTER the group of lines  deleted
+        by  the "d" command, if possible (Deleting the last line makes
+        the new last  line  the  current  line).   Typing  "od"  alone
+        queries  the  delete  direction flag, causing ">" or "<" to be
+        displayed.
+
+        For general information about the option command, type "ho".
--- a/help/of
+++ b/help/of
@ -0,0 +1,16 @@
+
+        of -- Option Fortran
+
+               default range             syntax
+                  1,$                      of
+
+        Typing  "of"  turns  on  a  package  of  options  considered
+        convenient for editing Fortran.  The warning column  is  set
+        to  72,  and tab spacing is set to 7 +3 so that tabbing once
+        gets you to column 7.   Tab  expansion  is  also  turned  on
+        (XTABS).   To  undo  "of" it is necessary to type "ot+3" and
+        "ox".
+
+        For general information about the option command, type "ho".
+        See also "oa".
+
--- a/help/og
+++ b/help/og
@ -0,0 +1,16 @@
+
+        og -- Option Global
+
+               default range             syntax
+                  1,$                     og
+
+        The "g" option controls the behavior of the Substitute  command
+        when it  is under the control of a Global  command.  Initially,
+        if a substitute inside a global command fails, se will not con-
+        tinue with  the rest of the lines  which might succeed. If "og"
+        is given, then  the global substitute  will continue, and lines
+        which failed will not be affected. Succesive "og" commands will
+        toggle this behavior.  An explanatory message is placed in  the
+        status line.
+
+        For general information about the option command, type "ho".
--- a/help/oh
+++ b/help/oh
@ -0,0 +1,17 @@
+
+        oh -- Option Hardware Insert/Delete
+
+              default range             syntax
+                 1,$                     oh
+
+        The   "h"   option   controls   the  use  of  hardware  line
+        insert/delete on terminals that have  that  capability.   By
+        default,  line  insert/delete will be used if available.  It
+        is occasionally useful to turn this option  off  when  using
+        the editor on a terminal which can't keep up, or if the com-
+        munications  lines may be scrambling the control characters.
+        Each successive "oh" merely  toggles  a  switch  within  the
+        editor.   An  explanatory  message  is  placed in the status
+        line.
+
+        For general information about the option command, type "ho".
--- a/help/oi
+++ b/help/oi
@ -0,0 +1,13 @@
+
+        oi -- Option Indent
+
+                default range           syntax
+                    1, $                  oi[a | <indent>]
+
+        "oi" selects the indent value for lines  inserted with "a" and
+        "i" commands (initially 1). "a" selects auto-indent which sets
+        the indent to the value  which equals the indent of the previ-
+        ous line.  If  neither  "a" nor  "<indent>" is  specified, the
+        current value of indent is displayed.
+
+        For general information about the option command, type "ho".
--- a/help/ok
+++ b/help/ok
@ -0,0 +1,12 @@
+        ok -- Option OK
+
+        default range                    syntax
+          1,$                             ok
+
+        Typing  "ok"  simply tests the flag that indicates whether the
+        edit buffer has been saved since the last change was  made  to
+        it.   "Saved"  or  "Not saved" is accordingly displayed in the
+        remark field at the bottom of the screen.
+
+        To return to the option directory, type "ho".
+        See also "hq".
--- a/help/ol
+++ b/help/ol
@ -0,0 +1,14 @@
+        ol -- Option Line
+
+               default range             syntax
+                 1,$                      ol[$ | . | # | BLANK]
+
+        The  "l"  option  is the Line number monitoring option. Typing
+        "l" followed by "$" constantly displays the last  line  number
+        in the file (current length of the file).  Typing "l" followed
+        by  "."   constantly  displays  the current line number.  This
+        usually make sense only in conjunction with the  "oa"  option,
+        that uses letters for line names.
+
+        For general information about the option command, type "ho".
+        See also:  "hoa" and "hequal".
--- a/help/olm
+++ b/help/olm
@ -0,0 +1,14 @@
+
+        olm -- Option Line Margin
+
+        default range                           syntax
+           1,$                                   olm[<col>]
+        
+        Sets the left margin to <col>  which must be a positive integer.
+        This shifts the entire screen to  the left; the characters  that
+        were in columns 1  through <col> - 1  will  not be visible.  You
+        may continue editing in the normal fashion. To reset your screen
+        to normal, enter the command "olm 1".  If <col> is omitted,  the
+        current left margin column is displayed in the status line.
+
+        For general information about the options command, type "ho".
--- a/help/om
+++ b/help/om
@ -0,0 +1,18 @@
+
+        om -- Option Mail
+
+               default range             syntax
+                  1,$                     om
+
+        "om" is an option which allows the user control   over  whether
+        or  not he will  be  notified  about pending mail.  Typing "om"
+        simply toggles the switch controlling notification.
+            The default is for the editor to notify the  user about his
+        mail.  The  mail  box  which the editor uses is taken from  the
+        environment variable MAIL. If the mail box exists, but is empty
+        the user will not be notified.
+
+        To  read your mail, use a shell escape on whichever of the fol-
+        lowing programs is appropriate:
+
+                Mail     msg     mail
--- a/help/os
+++ b/help/os
@ -0,0 +1,15 @@
+
+        os --- option source
+
+        default range           syntax
+           1,$       s[as | c | d | data | f | h | n | nr | nroff | p | r | s]
+        
+        This option sets other options for case, tabs, etc.
+            as, s   -- assembler files   c          -- C files
+            d, data -- data files        f          -- fortran files
+            h       -- header files      n,nr,nroff -- nroff source files
+            p       -- pascal files      r          -- ratfor files
+        
+        See the manual page for details.
+
+        For general information about the options command, type "ho".
--- a/help/ot
+++ b/help/ot
@ -0,0 +1,17 @@
+        ot -- Option Tab
+
+        range                        syntax
+         1,$                ot[[[+]integer [+]integer]]
+
+
+        "ot+3" sets the spacing between tab stops.  The  default  value
+        when  'se'  comes  up  is 3.  Typing "ot" by itself causes the
+        current value of the parameter to be displayed.  As an example
+        of how tabs are spaced out, if ot+6 is in effect, tab stops are
+        at 7, 13, 19, etc.
+        Variable  tabs can be set by typing "ot 5 13 24 ..  ".  if you
+        do not prefer equally spaced ones.
+
+        See also "hof".
+        For general information about the option command, type "ho".
+        For more about the use of tab stops, type "hmotion".
--- a/help/ou
+++ b/help/ou
@ -0,0 +1,17 @@
+        ou -- Option Unprintable
+
+               default range             syntax
+                 1,$                     ou[character]
+
+        The  "u"  option  is  for  monitoring  unprintable characters.
+        Typing "ou" by itself will return the current  character  used
+        to display unprintable characters.  If it is ' ' (blank), then
+        unprintable  characters  are  not  checked and may mess up the
+        display.  Typing "oux" where "x" is a printable character will
+        turn on  character  checking  and  display  "x"  everytime  an
+        unprintable  character is encountered.  Unprintable characters
+        are not disturbed in the file, but can be "edited" out.
+
+        See also hccmisc for refreshing the display.
+
+        For general information about the option command, type "ho".
--- a/help/ov
+++ b/help/ov
@ -0,0 +1,14 @@
+        ov -- oVerlay Option
+
+               default range             syntax
+                  1,$                    ov[integer]
+
+        The "v" option is the  overlay  column  number.   Typing  "ov"
+        followed  by  a  space  and  a number sets the column that the
+        cursor will be positioned at when  issuing  the  "v"  command.
+        Typing "ov $" will position the cursor at the end of the line.
+        Typing "ov" by itself will display the current value.
+
+        See also hmotion.
+
+        For general information about the option command, type "ho".
--- a/help/ow
+++ b/help/ow
@ -0,0 +1,14 @@
+        ow -- Option Warning
+
+               default range              syntax
+                 1,$                      ow[integer]
+
+        The "w" option is the  Warning  column  number.   Typing  "ow"
+        followed by a number sets the warning column threshold; simply
+        typing  "ow"  causes  its current value to be displayed.  When
+        you are about to type into a column of equal or greater number
+        than the warning column, the number  of  the  column  you  are
+        about  to type into is displayed on the bottom line along with
+        the string "col  ".
+
+        For general information about the option command, type "ho".
--- a/help/ox
+++ b/help/ox
@ -0,0 +1,16 @@
+            ox -- toggle tab compression/expansion
+
+            default range           syntax
+                .                       ox
+
+
+            "ox" turns compression of tabs on or off. If a file
+            has tabs in it, they will be  expanded  if compres-
+            sion is on. Otherwise they will be left alone,  and
+            will show up as the default unprintable character.
+
+            The message "XTABS" will be displayed in the status
+            line if tab compression is on.
+
+            Type "hdir" to go back to the general help directory.
+            Type "ho" for help on the option command.
--- a/help/oy
+++ b/help/oy
@ -0,0 +1,15 @@
+
+        oy --- option encrYption 
+
+        default range                                   syntax
+           1,$                                            oy[key]
+        
+        This option allows you to edit encrypted files. oy followed by a key
+        will cause e, r, and w, commands to encrypt  and decrypt files using
+        crypt(1).  oy will toggle the current  encryption setting.  If there
+        is  no current key, se will ask you for one. If encryption is turned
+        on, it will be  turned off.   Encryption in indicated by the message
+        "ENCRYPT" in the status line. The key is never shown on your screen.
+
+        Type "ho" for help on the option command.
+        Type "hdir" to go back to the general help directory.
--- a/help/oz
+++ b/help/oz
@ -0,0 +1,12 @@
+
+        oz -- option sleep (zzzz's)
+
+        default range           syntax
+          1,$                     oz
+
+        If you are running "sh", this option has absolutely no effect at
+        all.  If you are running the "csh", this option will suspend  se
+        in the background.  Se will issue  a warning  if  the buffer has
+        not been saved, when this is done.
+
+        For general information about the option command, type "ho".
--- a/help/p
+++ b/help/p
@ -0,0 +1,14 @@
+          p    -- Print/Previous screen command
+
+               default range           syntax
+               see below               [range] p
+
+        "p"  prints  a  range of lines or the previous screen (when no
+        range is provided).  The line pointer is set to the last  line
+        printed  (a  new  screen  may  be printed).  When the previous
+        screen is printed, the first line on the  current  screen  be-
+        comes  the  line  pointer, usually the last line on the screen
+        (exception is when the first page is printed).
+
+        To return to the command directory, type "hcomdir."
+        See also "hspecl"
--- a/help/pat
+++ b/help/pat
@ -0,0 +1,15 @@
+        A PATTERN is a string of characters that specifies  a  set  of
+        possible  strings  of  characters  that  are said to MATCH the
+        pattern.  Most characters in patterns  stand  for  themselves,
+        but   there   are   metacharacters:   "."   that  matches  any
+        character, "*" that along with the previous character, matches
+        any number of repetitions of  it  (including  none),  "^"  for
+        beginning  of  line,  "$"  for  end of line, and characters in
+        brackets "[]" to match any of  the  characters.   The  special
+        sense  of  metacharacters  and  of the delimiters in which the
+        pattern is enclosed can always be  turned  off  by  preceeding
+        them with the escape character "\".
+
+        See also "hs", "hg", "hx" for uses of patterns.
+        For the use of patterns in line numbers, type "hscan".
+        For examples of pattern matches, type "hpatex".
--- a/help/patex
+++ b/help/patex
@ -0,0 +1,13 @@
+         PATTERN       MATCHES     DOESN'T MATCH
+
+        "test"         "testfoo"   "foobar"
+        "test$"        "footest"   "test "
+        "$"            anything
+        "ab*c"         "abbbbbbc"  "bbbbbbc"
+        "ab*c"         "ac cur"    "ab*c"
+        "^abc"         "abcac"     "bcabc"
+        "abc^"         "abc^d"     "ab*c"
+        "a[bcd]*e"     "abddceab"  "eeeaaa"
+        "a[bcd]*e"     "aaaeee"    "bcdbcde"
+
+        For general info about patterns, type "hpat".
--- a/help/q
+++ b/help/q
@ -0,0 +1,14 @@
+          q   --  Quit command
+
+               default range           syntax
+                   n/a                    q
+
+        "q" is used to quit the screen editor  and  return  to  system
+        command  level.  If changes have been made to the buffer since
+        the last write ("w"), you will be asked if you really want  to
+        quit.   If so, just do another "q" command (RETURN is all that
+        required).
+
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hok".
--- a/help/quote
+++ b/help/quote
@ -0,0 +1,10 @@
+
+        ' --- global on markname
+
+        default range                   syntax
+          1,$                             '<m>command
+        
+        Similar to the "g" prefix, except that "command" is performed
+        for all lines in the range that have the mark name <m>.
+
+        To return to the command directory, type "hcomdir".
--- a/help/r
+++ b/help/r
@ -0,0 +1,12 @@
+          r    -- Read command
+
+               default range           syntax
+                      .           r [file name]
+        "r" is used to read a file into  the  buffer  at  (after)  the
+        named  place  (range field).  If no file name is provided, the
+        current  file name (as  identified by the "f" command) is used.
+        Se expand environment variables occuring in file names.
+
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hf" and "he".
--- a/help/rpt
+++ b/help/rpt
@ -0,0 +1,10 @@
+        The CTRL-F ("Funny Return") key  can  be  used  for  repeating
+        lines while in Append Mode or in Command Mode.  Typing it will
+        cause   the   line  to  be  terminated  without  chopping  any
+        characters off, and will set a flag that will inhibit  erasure
+        of  the  command  after it is completed, so that the same line
+        may be easily re- entered.
+
+
+        Type "htermchar" for info about other termination characters.
+        Type "habt" to see what CTRL-F does in overlay mode.
--- a/help/s
+++ b/help/s
@ -0,0 +1,16 @@
+          s    -- Substitute command
+
+               default range           syntax
+                   .,.           s/change-this/to-this[/][g]
+
+        The pattern "change-this" is matched on each line  within  the
+        range  and the string "to-this" is substituted for it.  If [g]
+        is used, all occurrences  of  the  "change-this"  pattern  are
+        changed.   If  "change-this" is empty, the most recent pattern
+        from this command (e.g.  within the range field) or a previous
+        command is used.  If "to-this" is a '%', the previous replace-
+        ment pattern is used. The "/" may be any character. The trail-
+        ing delimiter is optional.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hln" and "hpat".
--- a/help/scan
+++ b/help/scan
@ -0,0 +1,15 @@
+                     For line number syntax, type "hln".
+                   For details about PATTERNs, type "hpat".
+
+        A line number term consisting of  a  PATTERN  between  slashes
+        causes  a  scan to begin with the line after the current line.
+        If the last line is encountered, the scan continues with  line
+        1.   The  current  line  is the last to be examined.  The line
+        referred to is the first line encountered  in  the  scan  that
+        contains  a  match  for  the  pattern.   If  the entire buffer
+        contains no match, then an error is flagged.  If  the  pattern
+        is  enclosed  in  question marks,  the  scan is in the reverse
+        direction and begins with the line  just  before  the  current
+        line,  and  wraps  around  to  the  last  line after line 1 is
+        examined.  ">" and "<" mark name searches proceed in the  same
+        wraparound fashion.
--- a/help/serc
+++ b/help/serc
@ -0,0 +1,15 @@
+        serc -- $HOME/.serc -- Se Initialization File
+        
+        The file $HOME/.serc, if it exists, is read when se starts up.
+        If a line begins with a '#', it is treated as a comment and is
+        ignored.  It is useful for  setting  personal options  without
+        the user having to type them in  on the command line  or use a
+        special shell file or alias. Here is a sample .serc file:
+
+            # turn on unix mode, tabs every 8 columns, auto indent
+            opu
+            ot+8
+            oia
+
+	Command line options ALWAYS override any options set by commands
+	in the .serc file.
--- a/help/shell
+++ b/help/shell
@ -0,0 +1,17 @@
+
+        ! --- shell escape
+
+        default range                            syntax
+                1,$                      ![<Unix command>]
+
+        The user's choice of shell is taken from the $SHELL environment vari-
+        able and used to execute <Unix command> if it is present.  Otherwise,
+        an  interactive shell is created. A leading ! is replaced by the pre-
+        vious  shell  command.  Thus !!  executes  the previous  command.  An
+        unescaped  % is replaced  by  the saved  file name. An expanded shell
+        command is echoed  before it is  executed. After an interactive shell
+        exits, the screen is immediately  redrawn. If a  command was run, the
+        results are left on the  screen,  and the user must  type a return to
+        redraw the editing window.
+
+        To return to the command directory, type "hcomdir".
--- a/help/specl
+++ b/help/specl
@ -0,0 +1,13 @@
+        The "=" command displays the last  line  number  in  the  line
+        number  list  (default  ".")  as  a  number.  For example, "="
+        prints the line number of the current line, or "$=" prints the
+        line number of the last line (the number of lines).
+
+        The ":"  command, with no preceeding line numbers,  moves  the
+        window  so that the next screenful of text is visible.  With a
+        line number, it makes the window begin at the referenced line.
+        The top line in the window becomes the current line.
+
+        For general information about commands, type "hcom".
+        For a description of command syntax, type "hcomsyn".
+        To see a directory of the other commands, type "hcomdir".
--- a/help/t
+++ b/help/t
@ -0,0 +1,11 @@
+
+          t    -- To command
+               default range           syntax
+                         .,.           from-here,to-here t after-here
+
+        Reproduce the block of lines identified by the range field of
+        the command and place them after the named line.
+
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hm".
--- a/help/termchar
+++ b/help/termchar
@ -0,0 +1,11 @@
+                    Command Terminating Control Characters
+
+        The  Carriage Return character terminates a command, but first
+        erases any characters at and  to  the  right  of  the  cursor.
+        CTRL-V,  on  the other hand, skips the cursor to the right end
+        of the line, then terminates it.  The "Funny Return" character
+        CTRL-F serves different purposes depending on what routine  is
+        soliciting the command.
+
+        For more about CTRL-F, see "habt" and "hrpt".
+        The general control character directory is "hcc".
--- a/help/tilde
+++ b/help/tilde
@ -0,0 +1,10 @@
+
+        ~ --- exclude on markname
+
+        default range                   syntax
+          1,$                             ~<m>command
+        
+        Similar to the "x" prefix, except that  "command" is performed
+        for all lines in the range that do not have the mark name <m>.
+
+        To return to the command directory, type "hcomdir".
--- a/help/u
+++ b/help/u
@ -0,0 +1,18 @@
+     u    -- Undo command.
+
+           default range                 syntax
+                .                         u[d]
+
+        1.  "u" is used to undo modifications to  a  line  immediately
+        after  changes  are  made.  E.g.  if you substituted "pat" for
+        "hat" in a line, to reverse that operation immediately, simply
+        type "u" (RETURN).
+
+        2.  "ud" is used to restore a group of lines  that  have  been
+        delete  E.g.   if  "n,md"  deletes lines n thru m, then if you
+        position the curser to line n-1 and  issue  "ud"  the  deleted
+        lines  will  appear.   (Or you can set the od toggle to od< so
+        that the line pointer is automatically set to n-1.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hd" and "hod".
--- a/help/v
+++ b/help/v
@ -0,0 +1,11 @@
+          v    -- oVerlay command
+
+               default range           syntax
+                    .,.                   v
+
+        Inline editing mode is entered using this command.  The curser
+        is  positioned  at the column set by the "ov" command.  Inline
+        editing may now be performed using control characters.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hcc" and "hmotion".
--- a/help/w
+++ b/help/w
@ -0,0 +1,15 @@
+          w    -- Write command
+
+               default range                syntax
+                         1,$        w[! | + | >] [file name]
+
+        "w"  writes  the  buffer  to a file.  If issued without a file
+        name the current file name is used.  If "f" was used to change
+        the file name or if a file name was given, a new file will  be
+        created and written unless the file already exits which causes
+        a  warning.   The warning may be bypassed using "w!".  Options
+        [+] or [>] mean to append to the file instead of writing  over
+        it. Se expands environment variables occuring in file names.
+
+        To return to the command directory, type "hcomdir."
+        See also:   "hf", "hok".
--- a/help/x
+++ b/help/x
@ -0,0 +1,14 @@
+
+          x    -- Global exclude on pattern
+
+               default range           syntax
+                         1,$           x/pattern/command
+
+        "x"  is  used  to perform an editing command on all lines that
+        do not match the "pattern". "pattern" is any legal pattern and
+        command is an editor command.  The "g" command is the converse
+        of "x" and performs the command on all lines that do match the
+        pattern.  The "/" may be any character.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hg" and "hpat".
--- a/help/y
+++ b/help/y
@ -0,0 +1,11 @@
+          y    -- translYterate command
+
+               default range           syntax
+                   .,.           y/from-range/to-range[/]
+
+        Characters   in   the  "from-range"  are  converted  to  their
+        corresponding characters in the "to-range".  The "/" may be an
+        character.  The trailing delimiter is optional.
+
+        To return to the command directory, type "hcomdir."
+        See also:  "hs".
--- a/help/z
+++ b/help/z
@ -0,0 +1,18 @@
+       z -- do special extended things
+
+        default range               syntax
+    lines must be given         line,line z <option> <stuff>
+
+       The z command command is used for doing special extended
+    things. Currently, the only option available is b, to  draw
+    a box into the buffer. It works as follows:
+
+         lin,lin zb<left>[,<right>][<char>]
+
+    The two <lin>s  specify where in the buffer to put the  box,
+    <left> and <right> tell which column to  which  column,  and
+    the <char> is the character to use to draw the  box.  As  an
+    example,
+         .,.+4zb10,50*
+    draws a box, OVER the text that is there. Try  it  on  some
+    BLANK lines.
--- a/man/Makefile.am
+++ b/man/Makefile.am
@ -0,0 +1,5 @@
+# This file is in the public domain.
+
+man_MANS = se.1 scriptse.1
+
+EXTRA_DIST = $(man_MANS)
--- a/man/Makefile.in
+++ b/man/Makefile.in
@ -0,0 +1,438 @@
+# Makefile.in generated by automake 1.11.6 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# This file is in the public domain.
+VPATH = @srcdir@
+am__make_dryrun = \
+  { \
+    am__dry=no; \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        echo 'am--echo: ; @echo "AM"  OK' | $(MAKE) -f - 2>/dev/null \
+          | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
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+	  if test -n "$$list" && \
+	    grep 'ab help2man is required to generate this page' $$list >/dev/null; then \
+	    echo "error: found man pages containing the \`missing help2man' replacement text:" >&2; \
+	    grep -l 'ab help2man is required to generate this page' $$list | sed 's/^/         /' >&2; \
+	    echo "       to fix them, install help2man, remove and regenerate the man pages;" >&2; \
+	    echo "       typically \`make maintainer-clean' will remove them" >&2; \
+	    exit 1; \
+	  else :; fi; \
+	else :; fi
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- a/man/scriptse.1
+++ b/man/scriptse.1
@ -0,0 +1,67 @@
+.\"
+.\" scriptse.1 man page
+.\"
+.\" This file is in the public domain.
+.\" 
+.TH SCRIPTSE 1 local
+.SH NAME
+scriptse \- make scripts for se
+.SH SYNOPSIS
+.B scriptse
+[
+.B \-d
+]
+< script_file |
+.B se
+[ & ]
+.SH DESCRIPTION
+.I Scriptse
+reads standard input, and writes standard output.
+It is a simple filter which turns newlines ('\en') into carriage
+returns ('\er') for
+.IR se (1).
+This allows
+.I se
+to be run from a prepared script.
+.I Se
+can then be fired off into the background, if you wish.
+.PP
+After each carriage return,
+.I scriptse
+adds an ASCII DEL character ('\e177').
+This is so that command lines which fail will be erased,
+and the next command can then be executed.
+If it did not, command lines would get concatenated together, and they
+would simply continue to fail.
+Ultimately, the editor would run out of input buffer and start to
+contiunuously ring the bell on the terminal.
+With the DEL character, each command line is executed on its own.
+.PP
+.I Scriptse
+takes one option, \-d.
+If this option is used,
+.I scriptse
+will
+.I not
+add the ASCII DEL after each carriage return.
+This is useful for program which want to turn newlines into carraige
+returns.
+.PP
+If you do use a script, either sit back and watch it run, or redirect
+the output into a file (or
+.BR /dev/null ,
+if you are confident).
+.SH SEE ALSO
+.IR se (1).
+.SH CAVEATS
+.PP
+It is rather difficult to interrupt
+.I se
+when it is running, so editor scripts should write their
+changed buffer to a new file, in case something goes wrong.
+.SH BUGS
+.PP
+Does no checking for any of
+.IR se 's
+control characters.
+If you put control characters into a script, you are taking your chances.
--- a/man/se.1
+++ b/man/se.1
--- a/src/ascii.h
+++ b/src/ascii.h
@ -0,0 +1,70 @@
+/*
+** ascii.h
+**
+** definitions of ASCII mnemonics and synonyms.
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef	__ASCII_H
+#define	__ASCII_H
+#define	NUL	'\0'
+#define	SOH	'\001'
+#define	STX	'\002'
+#define	ETX	'\003'
+#define	EOT	'\004'
+#define	ENQ	'\005'
+#define	ACK	'\006'
+#define	BEL	'\007'
+#define	BS	'\010'
+#define	HT	'\011'
+#define	LF	'\012'
+#define	VT	'\013'
+#define	FF	'\014'
+#define	CR	'\015'
+#define	SO	'\016'
+#define	SI	'\017'
+#define	DLE	'\020'
+#define	DC1	'\021'
+#define	DC2	'\022'
+#define	DC3	'\023'
+#define	DC4	'\024'
+#define	NAK	'\025'
+#define	SYN	'\026'
+#define	ETB	'\027'
+#define	CAN	'\030'
+#define	EM	'\031'
+#define	SUB	'\032'
+#define	ESC	'\033'
+#define	FS	'\034'
+#define	GS	'\035'
+#define	RS	'\036'
+#define	US	'\037'
+#define	SP	'\040'
+#define	DEL	'\177'
+#define	CTRL_A	SOH
+#define	CTRL_B	STX
+#define	CTRL_C	ETX
+#define	CTRL_D	EOT
+#define	CTRL_E	ENQ
+#define	CTRL_F	ACK
+#define	CTRL_G	BEL
+#define	CTRL_H	BS
+#define	CTRL_I	HT
+#define	CTRL_J	LF
+#define	CTRL_K	VT
+#define	CTRL_L	FF
+#define	CTRL_M	CR
+#define	CTRL_N	SO
+#define	CTRL_O	SI
+#define	CTRL_P	DLE
+#define	CTRL_Q	DC1
+#define	CTRL_R	DC2
+#define	CTRL_S	DC3
+#define	CTRL_T	DC4
+#define	CTRL_U	NAK
+#define	CTRL_V	SYN
+#define	CTRL_W	ETB
+#define	CTRL_X	CAN
+#define	CTRL_Y	EM
+#define	CTRL_Z	SUB
+#endif
--- a/src/changetty.c
+++ b/src/changetty.c
@ -0,0 +1,193 @@
+/*
+** changetty.c
+**
+** Localize in one place all the data and functions
+** needed to change to and from cbreak mode for
+** the se screen editor.
+**
+** Only functions available to rest of se are:
+** ttyedit(), ttynormal(), and getspeed().
+**
+** If USG is defined, we use the System V TTY driver.
+** Otherwise (the default) we use the Berkeley terminal driver.
+**
+** If we are using System V, then the Release 2 version does not
+** need ospeed.  If not release 2, we assume Release 1 that someone
+** have moved the BSD termlib to.
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#include "config.h"
+
+#include "ascii.h"
+#include "constdefs.h"
+#include "changetty.h"
+#include "main.h"
+
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#else
+/* fallback to termio */
+#ifdef HAVE_TERMIO_H
+#include <termio.h>
+#endif
+#endif
+
+extern short ospeed;		/* from the termlib library */
+static int set_ospeed = NO;
+
+static TTYINFO OldTtyInfo;	/* initial state of terminal */
+static TTYINFO NewTtyInfo;	/* modified state for editing */
+
+static int first = YES;		/* first time anything called */
+
+
+void init(void)
+{
+	if (gttyinfo(1, &OldTtyInfo) == -1)	/* get current state */
+	{
+		error (NO, "couldn't get TTY info from system. get help!\n");
+	}
+
+	NewTtyInfo = OldTtyInfo;	/* copy it */
+	mttyinfo(&NewTtyInfo);		/* change, but don't reset terminal */
+	/* really should check the return value here ... */
+}
+
+
+void ttyedit(void)	/* set the terminal to correct modes for editing */
+{
+	if (first == YES)
+	{
+		first = NO;
+		init();
+	}
+
+	sttyinfo(1, &NewTtyInfo);	/* make the change */
+	/* really should check the return value here too ... */
+}
+
+void ttynormal(void)	/* set the terminal to correct modes for normal use */
+{
+	if (first)
+	{
+		first = NO;
+		init();
+	}
+
+	sttyinfo(1, &OldTtyInfo);	/* make the change */
+}
+
+/* getspeed --- find out the terminal speed in characters/second */
+/*		this routine only used if terminal types are hardwired */
+/*		into se, however, since it will be in an archive, the */
+/*		loader won't grab it if it isn't needed. */
+
+int getspeed(int fd)
+{
+	int i;
+	TTYINFO ttybuf;
+	static struct brstruct {
+		int unixrate;
+		int cps;
+		int baudrate;
+		} stab[] = {
+			B0,	0,	0,
+			B50,	5,	50,
+			B75,	8,	75,
+			B110,	10,	110,
+			B134,	14,	134,
+			B150,	15,	150,
+			B200,	20,	200,
+			B300,	30,	300,
+			B600,	60,	600,
+			B1200,	120,	1200,
+			B1800,	180,	1800,
+			B2400,	240,	2400,
+			B4800,	480,	4800,
+			B9600,	960,	9600
+		};
+
+	if (first)		/* might as well set it here, too */
+	{
+		first = NO;
+		init();
+	}
+
+	if (gttyinfo(fd, &ttybuf) == -1)
+	{
+		return 960;
+	}
+
+	for (i = 0; i < sizeof(stab) / sizeof(struct brstruct); i++)
+	{
+		if (stab[i].unixrate == (ttybuf.c_cflag & 017))
+		{
+			return stab[i].cps;
+		}
+	}
+
+	return 960;
+}
+
+/* gttyinfo --- make all necessary calls to obtain terminal status */
+
+int gttyinfo(int fd, TTYINFO *buf)
+{
+#ifdef HAVE_TCGETATTR
+	if (tcgetattr(fd, buf))
+	{
+		return -1;
+	}
+#else
+	if (ioctl(fd, TCGETA, buf) < 0)
+	{
+		return -1;
+	}
+#endif
+	if (set_ospeed == NO)
+	{
+		set_ospeed = YES;
+		ospeed = buf->c_cflag & 017;
+	}
+
+	return 0;
+}
+
+/* mttyinfo --- modify a TTYINFO structure for interactive operation */
+
+int mttyinfo(TTYINFO *buf)
+{
+	buf->c_cc[0] = DLE;	/* interrupt */
+	buf->c_cc[1] = -1;	/* ignore quit */
+	buf->c_cc[4] = 1;	/* min # chars to read */
+	buf->c_cc[5] = 1;	/* min time to wait */
+
+	buf->c_iflag &= ~(INLCR|IGNCR|ICRNL);	/* allow CR to come thru */
+	buf->c_lflag |= ISIG|NOFLSH;	/* keep these bits */
+	buf->c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL
+#ifdef XCASE
+				|XCASE
+#endif
+			);
+
+	return 0;
+}
+
+/* sttyinfo --- make all necessary calls to set terminal status */
+
+int sttyinfo(int fd, TTYINFO *buf)
+{
+#ifdef HAVE_TCSETATTR
+	if (tcsetattr(fd, TCSANOW, buf) < 0)
+#else
+	if (ioctl(fd, TCSETAW, buf) < 0)
+#endif
+	{
+		return	-1;
+	} else {
+		return 0;
+	}
+}
+
--- a/src/changetty.h
+++ b/src/changetty.h
@ -0,0 +1,29 @@
+/*
+** changetty.h
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __CHANGETTY_H
+#define __CHANGETTY_H
+
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+typedef struct termios TTYINFO;
+#else
+/* fallback to termio */
+#ifdef HAVE_TERMIO_H
+#include <termio.h>
+typedef struct termio TTYINFO;
+#endif /* HAVE_TERMIO_H */
+#endif /* HAVE_TERMIOS_H */
+
+void init(void);
+void ttyedit(void);
+void ttynormal(void);
+int getspeed(int fd);
+int gttyinfo(int fd, TTYINFO *buf);
+int mttyinfo(TTYINFO *buf);
+int sttyinfo(int fd, TTYINFO *buf);
+
+#endif
--- a/src/config.h
+++ b/src/config.h
@ -0,0 +1,77 @@
+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `bsd' library (-lbsd). */
+/* #undef HAVE_LIBBSD */
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the `tcgetattr' function. */
+#define HAVE_TCGETATTR 1
+
+/* Define to 1 if you have the `tcsetattr' function. */
+#define HAVE_TCSETATTR 1
+
+/* Define to 1 if you have the <termcap.h> header file. */
+#define HAVE_TERMCAP_H 1
+
+/* Define to 1 if you have the <termios.h> header file. */
+#define HAVE_TERMIOS_H 1
+
+/* Define to 1 if you have the <termio.h> header file. */
+/* #undef HAVE_TERMIO_H */
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* log every time se is invoked */
+/* #undef LOG_USAGE */
+
+/* Name of package */
+#define PACKAGE "se"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "tcort@se-editor.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "se"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "se 3.0.1"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "se"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "3.0.1"
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+#define VERSION "3.0.1"
--- a/src/constdefs.h
+++ b/src/constdefs.h
@ -0,0 +1,16 @@
+/*
+** constdefs.h
+**
+** Standard macro definitions for se screen editor
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __CONSTDEFS_H
+#define __CONSTDEFS_H
+#define	EOS '\0'
+#define	ERR (-3)
+#define	OK (-2)
+#define	NO 0
+#define	YES 1
+#endif
--- a/src/docmd1.c
+++ b/src/docmd1.c
--- a/src/docmd1.h
+++ b/src/docmd1.h
@ -0,0 +1,27 @@
+/*
+** docmd1.h
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __DOCMD1_H
+#define __DOCMD1_H
+
+#include <stdio.h>
+
+int docmd(char lin[], int i, int glob, int *status);
+void dohelp(char lin[], int *i, int *status);
+int doopt(char lin[], int *i);
+int domark(char kname);
+int doprnt(int from, int to);
+int doread(int line, char *file, int tflag);
+int dosopt(char lin[]);
+int dotlit(char sub[], int allbut);
+int doundo(int dflg, int *status);
+int dowrit(int from, int to, char *file, int aflag, int fflag, int tflag);
+char *expand_env(char *file);
+FILE *crypt_open(char *file, char *mode);
+void crypt_close(FILE *fp);
+void getkey(void);
+
+#endif
--- a/src/docmd2.c
+++ b/src/docmd2.c
@ -0,0 +1,867 @@
+/*
+** docmd2.c
+**
+** routines to actually execute commands
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "se.h"
+#include "changetty.h"
+#include "docmd1.h"
+#include "docmd2.h"
+#include "edit.h"
+#include "extern.h"
+#include "main.h"
+#include "misc.h"
+#include "pat.h"
+#include "scratch.h"
+#include "screen.h"
+#include "term.h"
+
+/* append --- append lines after "line" */
+
+int append (int line, char str[])
+{
+	char lin[MAXLINE];
+	char term;
+	int ret;
+	int len, i, dpos, dotseen;
+
+	Curln = line;
+
+	if (str[0] == ':')	/* text to be added is in the command line */
+		ret = inject (&str[1]);
+	else
+	{
+		Cmdrow = Toprow + (Curln - Topln) + 1;  /* 1 below Curln */
+		lin[0] = EOS;
+		if (Indent > 0 || line <= 0)
+			len = max (0, Indent - 1);
+		else /* do auto indent */
+		{
+			LINEDESC *k;
+			k = se_gettxt (line);
+			for (len = 0; Txt[len] == ' '; len++)
+				;
+		}
+		dpos = len;     /* position for terminating '.' */
+
+		for (ret = NOSTATUS; ret == NOSTATUS; )
+		{
+			if (! hwinsdel())   /* do it the old, slow way */
+			{
+				if (Cmdrow > Botrow)
+				{
+					Cmdrow = Toprow + 1;
+					cprow (Botrow, Toprow);
+					adjust_window (Curln, Curln);
+					if (First_affected > Topln)
+						First_affected = Topln;
+				}
+				clrrow (Cmdrow);
+				if (Cmdrow < Botrow)
+					clrrow (Cmdrow + 1);
+			}
+			else	/* try to be smart about it */
+			{
+				if (Cmdrow > Botrow)
+				{
+					Cmdrow--;
+					dellines (Toprow, 1);
+					inslines (Cmdrow, 1);
+					Topln++;
+				}
+				else
+				{
+					dellines (Botrow, 1);
+					inslines (Cmdrow, 1);
+				}
+			}
+			prompt ("apd>");
+			do
+				getcmd (lin, Firstcol, &len, &term);
+			while (term == CURSOR_UP || term == CURSOR_DOWN
+			    || term == CURSOR_SAME);
+
+			dotseen = 0;
+			if (lin[0] == '.' && lin[1] == '\n' && lin[2] == EOS)
+				dotseen = 1;
+			for (i = 0; i < dpos && lin[i] == ' '; i++)
+				;
+			if (i == dpos && lin[dpos] == '.' && lin[dpos + 1] == '\n'
+			    && lin[dpos+2] == EOS)
+				dotseen = 1;
+
+			if (dotseen)
+			{
+				if (hwinsdel())
+				{
+					dellines (Cmdrow, 1);
+					inslines (Botrow, 1);
+				}
+				ret = OK;
+			}
+			else if (inject (lin) == ERR)
+				ret = ERR;
+			else			/* inject occured */
+				prompt ("");	/* erase prompt */
+			Cmdrow++;
+			if (term != FUNNY)
+			{
+				if (Indent > 0)
+					len = Indent - 1;
+				else /* do auto indent */
+					for (len = 0; lin[len] == ' '; len++)
+						;
+				dpos = len;
+				lin[0] = EOS;
+			}
+		}
+		Cmdrow = Botrow + 1;
+		if (hwinsdel())			/* since we take control */
+		{				/* of the screen, we're sure */
+			Sctop = Topln;		/* it's still OK */
+
+			for (i = 0; i < Sclen; i++)
+				Scline[i] = Sctop + i <= Lastln ? i : -1;
+		}
+	}
+	if (Curln == 0 && Lastln > 0)   /* for 0a or 1i followed by "." */
+		Curln = 1;
+	if (First_affected > line)
+		First_affected = line;
+
+	tflush ();
+	return (ret);
+}
+
+/* copy --- copy line1 through line2 after line3 */
+
+int copy (int line3)
+{
+	int i;
+	int ret;
+	LINEDESC *ptr3, *after3, *k;
+
+	ret = ERR;
+
+	if (Line1 <= 0)
+		Errcode = EORANGE;
+	else
+	{
+		ret = OK;
+		Curln = line3;
+		k = getind (Line1);
+		for (i = Line1; i <= Line2; i++)
+		{
+			gtxt (k);
+			if (inject (Txt) == ERR || intrpt ())
+			{
+				ret = ERR;
+				break;
+			}
+			if (Line1 < line3)
+				k++;
+			else
+				k += 2;
+			/*
+			 * inject calls blkmove, which will shift the
+			 * lines down one in the array, so we add two
+			 * instead of one to get to the next line.
+			 */
+		}
+		First_affected = min (First_affected, line3 + 1);
+	}
+	return (ret);
+}
+
+
+/* delete --- delete lines from through to */
+
+int se_delete (int from, int to, int *status)
+{
+	LINEDESC *k1, *k2, *j1, *j2, *l1;
+
+	if (from <= 0)          /* can't delete line 0 */
+	{
+		*status = ERR;
+		Errcode = EORANGE;
+	}
+	else
+	{
+		if (First_affected > from)
+			First_affected = from;
+		blkmove (from, to, MAXBUF - 1);	/* stick at end of buffer */
+
+		Lastln -= to - from + 1;        /* adjust number of last line */
+		Curln = prevln (from);
+
+		Lost_lines += Limcnt;
+		Limcnt = to - from + 1;		/* number of lines "deleted" */
+
+		/* point at first deleted */
+		Limbo = &Buf[MAXBUF - (to - from + 1)];
+
+		*status = OK;
+		svdel (from, to - from + 1);
+		Buffer_changed = YES;
+	}
+
+	return (*status);
+}
+
+
+/* join --- join a group of lines into a single line */
+
+int join (char sub[])
+{
+	char new[MAXLINE];
+	int l, line, sublen;
+	int ret;
+	LINEDESC *k;
+
+	ret = OK;
+	if (Line1 <= 0)
+	{
+		Errcode = EORANGE;
+		return (ERR);
+	}
+
+	sublen = strlen (sub) + 1;      /* length of separator & EOS */
+	line = Line1;
+	k = getind (line);
+	gtxt (k);
+	move_ (Txt, new, (int) k -> Lineleng);	/* move in first chunk */
+	l = k -> Lineleng;
+
+	for (line++; line <= Line2; line++)
+	{
+		if (intrpt ())
+			return (ERR);
+		if (new[l - 2] == '\n') /* zap the NEWLINE */
+			l--;
+		k = NEXTLINE(k);	/* get the next line */
+		gtxt (k);
+		if (l + sublen - 1 + k -> Lineleng - 1 > MAXLINE)	/* won't fit */
+		{
+			Errcode = E2LONG;
+			return (ERR);
+		}
+		move_ (sub, &new[l - 1], sublen);	/* insert separator string */
+		l += sublen - 1;
+		move_ (Txt, &new[l - 1], (int) k -> Lineleng);	/* move next line */
+		l += k -> Lineleng - 1;
+	}
+	Curln = Line2;          /* all this will replace line1 through line2 */
+	ret = inject (new);	/* inject the new line */
+	if (ret == OK)
+		ret = se_delete (Line1, Line2, &ret);	/* delete old lines */
+	Curln++;
+
+	if (First_affected > Curln)
+		First_affected = Curln;
+
+	return (ret);
+}
+
+
+/* move --- move line1 through line2 after line3 */
+
+int move (int line3)
+{
+	LINEDESC *k0, *k1, *k2, *k3, *k4, *k5;
+
+	if (Line1 <= 0)
+	{
+		Errcode = EORANGE;
+		return (ERR);
+	}
+
+	if (Line1 <= line3 && line3 <= Line2)
+	{
+		Errcode = EINSIDEOUT;
+		return (ERR);
+	}
+
+	blkmove (Line1, Line2, line3);
+
+	if (line3 > Line1)
+	{
+		Curln = line3;
+	}
+	else
+		Curln = line3 + (Line2 - Line1 + 1);
+
+	Buffer_changed = YES;
+	First_affected = min (First_affected, min (Line1, line3));
+
+	return (OK);
+}
+
+/* overlay --- let user edit lines directly */
+
+void overlay (int *status)
+{
+	char savtxt[MAXLINE], term, kname;
+	static char empty[] = "\n";
+	int lng, vcol, lcurln, scurln;
+	LINEDESC *indx;
+
+	*status = OK;
+	if (Line1 == 0)
+	{
+		Curln = 0;
+		*status = inject (empty);
+		if (*status == ERR)
+			return;
+		First_affected = 1;
+		Line1 = 1;
+		Line2++;
+	}
+
+	for (lcurln = Line1; lcurln <= Line2; lcurln++)
+	{
+		Curln = lcurln;
+		vcol = Overlay_col - 1;
+		do {
+			adjust_window (Curln, Curln);
+			updscreen ();
+			Cmdrow = Curln - Topln + Toprow;
+			indx = se_gettxt (Curln);
+			lng = indx -> Lineleng;
+			if (Txt[lng - 2] == '\n')       /* clobber newline */
+				lng--;
+			if (vcol < 0)
+				vcol = lng - 1;
+			while (lng - 1 < vcol)
+			{
+				Txt[lng - 1] = ' ';
+				lng++;
+			}
+			Txt[lng - 1] = '\n';
+			Txt[lng] = EOS;
+			move_ (Txt, savtxt, lng + 1);	/* make a copy of the line */
+			getcmd (Txt, Firstcol, &vcol, &term);
+			if (term == FUNNY)
+			{
+				if (First_affected > Curln)
+					First_affected = Curln;
+				Cmdrow = Botrow + 1;
+				return;
+			}
+			if (strcmp (Txt, savtxt) != 0)  /* was line changed? */
+			{
+				kname = indx -> Markname;
+				se_delete (Curln, Curln, status);
+				scurln = Curln;
+				if (*status == OK)
+					*status = inject (Txt);
+				if (*status == ERR)
+				{
+					Cmdrow = Botrow + 1;
+					return;
+				}
+				indx = getind (nextln (scurln));
+				indx -> Markname = kname;
+			}
+			else
+			{           /* in case end-of-line is moved */
+				if (First_affected > Curln)
+					First_affected = Curln;
+			}
+			switch (term) {
+			case CURSOR_UP:
+				if (Curln > 1)
+					Curln--;
+				else
+					Curln = Lastln;
+				break;
+			case CURSOR_DOWN:
+				if (Curln < Lastln)
+					Curln++;
+				else
+					Curln = min (1, Lastln);
+				break;
+			case CURSOR_SAME:
+				vcol = 0;
+				break;
+			}
+		} while (term == CURSOR_UP || 
+		    term == CURSOR_DOWN ||
+		    term == CURSOR_SAME);
+	}
+	Cmdrow = Botrow + 1;
+	return;
+}
+
+
+/* subst --- substitute "sub" for occurrences of pattern */
+
+int subst (char sub[], int gflag, int glob)
+{
+	char new[MAXLINE], kname;
+	int line, m, k, lastm;
+	int j, junk, status, subbed, ret;
+	int tagbeg[10], tagend[10];
+	LINEDESC *inx;
+
+	if (Globals && glob)
+		ret = OK;
+	else
+		ret = ERR;
+
+	if (Line1 <= 0)
+	{
+		Errcode = EORANGE;
+		return (ERR);
+	}
+
+	/* the following code has been removed for your protection
+	   se_index() occasionally grabs newlines out of the character class
+	   counter in a pattern.  for example [0-9] doesn't work due to this
+
+		if (se_index (Pat, '\n') != -1)    # never delete NEWLINE
+		{
+			Errcode = EBADPAT;
+			return (ERR);
+		}
+	*/
+
+	for (line = Line1; line <= Line2; line++)
+	{
+		if (intrpt ())
+			break;
+		j = 0;
+		subbed = NO;
+		inx = se_gettxt (line);
+		lastm = -1;
+		for (k = 0; Txt[k] != EOS; )
+		{
+			for (m = 1; m <= 9; m++)
+			{
+				tagbeg[m] = -1;
+				tagend[m] = -1;
+			}
+			if (gflag == YES || subbed == NO)
+				m = amatch (Txt, k, Pat, &tagbeg[1], &tagend[1]);
+			else
+				m = -1;
+			if (m > -1 && lastm != m)       /* replace matched text */
+			{
+				subbed = YES;
+				tagbeg[0] = k;
+				tagend[0] = m;
+				catsub (Txt, tagbeg, tagend, sub, new, &j, MAXLINE);
+				lastm = m;
+			}
+			if (m == -1 || m == k)  /* no match or null match */
+			{
+				junk = addset (Txt[k], new, &j, MAXLINE);
+				k++;
+			}
+			else
+				k = m;	/* skip matched text */
+		}
+		if (subbed == YES)
+		{
+			if (addset (EOS, new, &j, MAXLINE) == NO)
+			{
+				ret = ERR;
+				Errcode = E2LONG;
+				break;
+			}
+			kname = inx -> Markname;
+			se_delete (line, line, &status);	/* remembers dot */
+			ret = inject (new);
+			if (First_affected > Curln)
+				First_affected = Curln;
+			if (ret == ERR)
+				break;
+			inx = getind (Curln);
+			inx -> Markname = kname;
+			ret = OK;
+			Buffer_changed = YES;
+		}
+		else	/* subbed == NO */
+			Errcode = ENOMATCH;
+	}
+
+	return (ret);
+}
+
+
+/* uniquely_name --- mark-name line; make sure no other line has same name */
+
+void uniquely_name (char kname, int *status)
+{
+	int line;
+	LINEDESC *k;
+
+	defalt (Curln, Curln);
+
+	if (Line1 <= 0)
+	{
+		*status = ERR;
+		Errcode = EORANGE;
+		return;
+	}
+
+	*status = OK;
+	line = 0;
+	k = Line0;
+
+	do {
+		line++;
+		k = NEXTLINE(k);
+		if (line == Line2)
+			k -> Markname = kname;
+		else if (k -> Markname == kname)
+			k -> Markname = DEFAULTNAME;
+	} while (line < Lastln);
+
+	return;
+}
+
+
+/* draw_box --- draw or erase a box at coordinates in command line */
+
+int draw_box (char lin[], int *i)
+{
+	int left, right, col, len;
+	int junk;
+	LINEDESC *k;
+	char text[MAXLINE];
+	char kname, ch;
+
+	left = ctoi (lin, i);
+	if (left <= 0 || left > MAXLINE)
+	{
+		Errcode = EBADCOL;
+		return (ERR);
+	}
+
+	if (lin[*i] == ',')
+	{
+		(*i)++;
+		SKIPBL (lin, *i);
+		right = ctoi (lin, i);
+		if (right <= 0 || right >= MAXLINE || left > right)
+		{
+			Errcode = EBADCOL;
+			return (ERR);
+		}
+	}
+	else
+		right = left;
+
+	SKIPBL (lin, *i);
+	if (lin[*i] == '\n')
+		ch = ' ';
+	else
+		ch = lin[(*i)++];
+
+	if (lin[*i] != '\n')
+	{
+		Errcode = EEGARB;
+		return (ERR);
+	}
+
+	if (Line1 <= 0)
+	{
+		Errcode = EORANGE;
+		return (ERR);
+	}
+
+	for (Curln = Line1; Curln <= Line2; Curln++)
+	{
+		k = se_gettxt (Curln);
+		len = k -> Lineleng;
+		move_ (Txt, text, len);
+
+		if (text[len - 2] == '\n')
+			col = len - 1;
+		else
+			col = len;
+		while (col <= right)
+		{
+			text[col - 1] = ' ';
+			col++;
+		}
+		text[col - 1] = '\n';
+		text[col] = EOS;
+
+		if (Curln == Line1 || Curln == Line2)
+			for (col = left; col <= right; col++)
+				text[col - 1] = ch;
+		else
+		{
+			text[left - 1] = ch;
+			text[right - 1] = ch;
+		}
+
+		if (strcmp (text, Txt) != 0)
+		{
+			kname = k -> Markname;
+			if (se_delete (Curln, Curln, &junk) == ERR
+			    || inject (text) == ERR)
+				return (ERR);
+			k = getind (Curln);
+			k -> Markname = kname;
+			Buffer_changed = YES;
+		}
+	}
+
+	Curln = Line1;		/* move to top of box */
+	if (First_affected > Curln)
+		First_affected = Curln;
+	adjust_window (Curln, Curln);
+	updscreen ();
+
+	return (OK);
+}
+
+
+/* dfltsopt --- set the 's' option to the extension on the file name */
+
+void dfltsopt (char name[])
+{
+	int i;
+
+	for (i = strlen (name) - 1; i >= 0; i--)
+		if (name[i] == '.')
+		{
+			dosopt (&name[i + 1]);
+			break;
+		}
+	if (i < 0)
+		dosopt ("");
+}
+
+
+
+/* doshell --- escape to the Shell to run one or more Unix commands */
+
+/*
+** emulate vi: if running just a shell, redraw the screen as
+** soon as the shell exits. if running a program, let the user
+** redraw the screen when he/she is ready.
+**
+** also emulate USG Unix 5.0 ed: a ! as the first character is
+** replaced by the previous shell command; an unescaped % is replaced
+** by the saved file name. The expanded command is echoed.
+*/
+
+#define DEFAULT_PATH	SHELL
+#define DEF_SHELL	(rindex(DEFAULT_PATH, '/') ? rindex(DEFAULT_PATH, '/') + 1 : NULL)
+
+int doshell (char lin[], int *pi)
+{
+	int rc;
+	int forkstatus, childstatus;
+	void (*save_quit)(int);
+	void (*save_int)(int);
+	int i, auto_redraw;
+	char *path, *name, *p;
+	char new_command[MAXLINE];
+	int j, k;
+	static char sav_com[MAXLINE] = "";
+	int expanded = NO;
+
+	if (Nlines == 0)        /* use normal 'ed' behavior */
+	{
+		tflush ();	/* flush out the terminal output */
+		position_cursor (Nrows - 1, 0);	/* bottom left corner */
+
+		if ((p = getenv ("SHELL")) == NULL || strcmp (p, DEFAULT_PATH) == 0)
+		{
+			path = DEFAULT_PATH;
+			name = DEF_SHELL;	/* default */
+		}
+		/* on Berkeley systems, check the other shell */
+		else if (strcmp (p, "/bin/sh") == 0)
+		{
+			path = "/bin/sh";
+			name = "sh";
+		}
+		else
+		{
+			if (p[0] == '/')	/* full pathname there */
+			{
+				/* work backwards to find just name */
+				path = p;
+				i = strlen (p);
+				while (p[i] != '/')
+					i--;
+				i++;		/* skip '/' */
+				name = &p[i];
+			}
+			else
+			{
+				char buf[MAXLINE];
+				memset(buf, '\0', MAXLINE);
+				snprintf (buf, MAXLINE-1,
+					"unknown shell, using %s",
+					DEF_SHELL);
+				remark (buf);
+				path = DEFAULT_PATH;
+				name = DEF_SHELL;
+			}
+		}
+
+		auto_redraw = (lin[*pi] == '\n') ? YES : NO;
+
+		/* build command, checking for leading !, and % anywhere */
+		if (lin[*pi] == '!')
+		{
+			if (sav_com[0] != EOS)
+			{
+				for (j = 0; sav_com[j] != EOS; j++)
+					new_command[j] = sav_com[j];
+				if (new_command[j-1] == '\n')
+					j--;
+				(*pi)++;
+				expanded = YES;
+			}
+			else
+			{
+				Errcode = ENOCMD;
+				return (ERR);
+			}
+		}
+		else
+			j = 0;
+
+		for (i = *pi; lin[i] != EOS; i++)
+		{
+			if (lin[i] == ESCAPE)
+			{
+				if (lin[i+1] != '%')
+				{
+					new_command[j++] = ESCAPE;
+					new_command[j++] = lin[++i];
+				}
+				else
+					new_command[j++] = lin[++i];
+			}
+			else if (lin[i] == '%')
+			{
+				for (k = 0; Savfil[k] != EOS; k++)
+					new_command[j++] = Savfil[k];
+				expanded = YES;
+			}
+			else
+				new_command[j++] = lin[i];
+		}
+
+		if (new_command[j-1] == '\n')
+			j--;
+		new_command[j] = EOS;
+
+		memset (sav_com, EOS, MAXLINE);
+		strncpy (sav_com, new_command, MAXLINE-1);	/* save it */
+
+		ttynormal ();
+		t_exit ();
+		rc = write (1, "\n\n", 2);            /* clear out a line */
+		if (rc == -1)
+		{
+			Errcode = ESTUPID;
+			return ERR;
+		}
+
+		forkstatus = fork();
+		if (forkstatus == -1)   /* the fork failed */
+		{
+			ttyedit ();
+			t_init ();
+			Errcode = ECANTFORK;
+			return ERR;
+		}
+
+		if (forkstatus == 0)    /* we're in the child process */
+		{
+			signal (SIGINT, SIG_DFL);
+			signal (SIGQUIT, SIG_DFL);
+
+			if (strcmp (name, "sh") != 0)	/* not /bin/sh */
+			{
+				signal (SIGTSTP, SIG_DFL);
+			}
+			else
+			{
+				signal (SIGTSTP, SIG_IGN);
+			}
+
+			if (auto_redraw)	/* no params; run a shell */
+			{
+				execl (path, name, NULL);
+				_exit (RETERR);   /* exec failed, notify parent */
+			}
+			else
+			{
+				if (expanded)		/* echo it */
+				{
+					printf ("%s\n", new_command);
+				}
+				execl (path, name, "-c", new_command, NULL);
+				_exit (RETERR);
+			}
+		}
+
+		/* we're in the parent process here */
+		save_int = signal (SIGINT, SIG_IGN);        /* ignore interrupts */
+		save_quit = signal (SIGQUIT, SIG_IGN);
+		while (wait (&childstatus) != forkstatus)
+			;
+		save_int = signal (SIGINT, save_int);       /* catch interupts */
+		save_quit = signal (SIGQUIT, save_quit);
+
+		rc = write (1, "\n\n", 2);    /* clear out some message space */
+		if (rc == -1)
+		{
+			Errcode = ESTUPID;
+			return ERR;
+		}
+
+		Currow = Nrows - 1;
+		Curcol = 0;
+		if ((childstatus >> 8) != 0)
+		{
+			ttyedit ();
+			t_init ();
+			Errcode = ENOSHELL;
+			return ERR;
+		}
+
+		/* a la vi: */
+		if (! auto_redraw)
+		{
+			int c;
+
+			printf ("type return to continue: ");
+			while ((c = getchar()) != '\n' && c != EOF)
+				;
+		}
+
+		ttyedit ();
+		t_init ();
+		restore_screen ();
+
+		return OK;
+	}
+	else
+	{
+		remark ("Not implemented yet");
+	}
+
+	return OK;
+}
--- a/src/docmd2.h
+++ b/src/docmd2.h
@ -0,0 +1,22 @@
+/*
+** docmd2.h
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __DOCMD2_H
+#define __DOCMD2_H
+
+int append (int line, char str[]);
+int copy (int line3);
+int se_delete (int from, int to, int *status);
+int join (char sub[]);
+int move (int line3);
+void overlay (int *status);
+int subst (char sub[], int gflag, int glob);
+void uniquely_name (char kname, int *status);
+int draw_box (char lin[], int *i);
+void dfltsopt (char name[]);
+int doshell (char lin[], int *pi);
+
+#endif
--- a/src/edit.c
+++ b/src/edit.c
--- a/src/edit.h
+++ b/src/edit.h
@ -0,0 +1,38 @@
+/*
+** edit.h
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __EDIT_H
+#define __EDIT_H
+
+#include <stdio.h>
+
+void edit(int argc, char *argv[]);
+int getlst(char lin[], int *i, int *status);
+int getnum(char lin[], int *i, int *pnum, int *status);
+int getone(char lin[], int *i, int *num, int *status);
+int ckglob(char lin[], int *i, int *status);
+int doglob(char lin[], int *i, int *cursav, int *status);
+int ckchar(char ch, char altch, char lin[], int *i, int *flag, int *status);
+int ckp(char lin[], int i, int *pflag, int *status);
+int ckupd(char lin[], int *i, char cmd, int *status);
+void defalt(int def1, int def2);
+int getfn(char lin[], int i, char filename[], size_t filenamesize);
+int getkn(char lin[], int *i, char *kname, char dfltnm);
+int getrange(char array[], int *k, char set[], int size, int *allbut);
+int getrhs(char lin[], int *i, char sub[], size_t subsize, int *gflag);
+int getstr(char lin[], int *i, char dst[], int maxdst);
+int getwrd(char line[], int *i, char word[], int size);
+int knscan(int way, int *num);
+int makset(char array[], int *k, char set[], size_t size);
+int optpat(char lin[], int *i);
+int ptscan(int way, int *num);
+int settab(char str[]);
+void serc(void);
+int serc_safe (char *path);
+char *sysname(void);
+void log_usage(void);
+
+#endif
--- a/src/extern.h
+++ b/src/extern.h
@ -0,0 +1,108 @@
+/*
+** extern.h
+**
+** external data definitions
+** for the screen editor
+**
+** This file is part of mse, under GPLv3.
+*/
+
+#ifndef __EXTERN_H
+#define __EXTERN_H
+
+/* Concerning line numbers: */
+extern int Line1;		/* first line number on command */
+extern int Line2;		/* second line number on command */
+extern int Nlines;		/* number of line numbers specified */
+extern int Curln;		/* current line; value of dot */
+extern int Lastln;		/* last line; value of dollar */
+
+
+/* Concerning patterns: */
+extern char Pat[MAXPAT];	/* saved pattern */
+
+
+/* Concerning the text of lines: */
+extern char Txt[MAXLINE];	/* text of current line */
+
+
+/* Concerning file names: */
+extern char Savfil[MAXLINE];	/* remembered file name */
+
+
+/* Concerning line descriptors: */
+extern LINEDESC Buf[MAXBUF];
+extern LINEDESC *Line0;		/* head of list of line descriptors */
+
+
+/* Concerning the 'undo' command: */
+extern LINEDESC *Limbo;		/* head of limbo list for undo */
+extern int Limcnt;		/* number of lines in limbo list */
+
+
+/* Concerning the scratch file: */
+extern int Scr;			/* scratch file descriptor */
+extern unsigned Scrend;		/* end of info on scratch file */
+extern char Scrname[MAXLINE];	/* name of scratch file */
+extern int Lost_lines;		/* number of garbage lines in scratch file */
+
+
+/* Concerning miscellaneous variables */
+extern int Buffer_changed;	/* YES if buffer changed since last write */
+extern int Errcode;		/* cause of most recent error */
+extern int Saverrcode;		/* cause of previous error */
+extern int Probation;		/* YES if unsaved buffer can be destroyed */
+extern int Argno;		/* command line argument pointer */
+extern char Last_char_scanned;	/* last char scanned with ctl-s or -l */
+extern char Peekc;		/* push a SKIP_RIGHT if adding delimiters */
+extern int Reading;		/* are we doing terminal input? */
+
+
+/* Concerning options: */
+extern int Tabstops[MAXLINE];	/* array of tab stops */
+extern char Unprintable;	/* char to print for unprintable chars */
+extern int Absnos;		/* use absolute numbers in margin */
+extern int Nchoise;		/* choice of line number for cont. display */
+extern int Overlay_col;		/* initial cursor column for 'v' command */
+extern int Warncol;		/* where to turn on column warning */
+extern int Firstcol;		/* leftmost column to display */
+extern int Indent;		/* indent col; 0=same as previous line */
+extern int Globals;		/* substitutes in a global don't fail */
+extern int No_hardware;		/* never use hardware insert/delete */
+
+
+/* Concerning the screen format: */
+extern char Screen_image[MAXROWS][MAXCOLS];
+extern char Msgalloc[MAXCOLS];	/* column allocation of status line */
+extern int Nrows;		/* number of rows on screen */
+extern int Ncols;		/* number of columns on screen */
+extern int Currow;		/* vertical cursor coordinate */
+extern int Curcol;		/* horizontal cursor coordinate */
+extern int Toprow;		/* top row of window field on screen */
+extern int Botrow;		/* bottom row of window field on screen */
+extern int Cmdrow;		/* row number of command line */
+extern int Topln;		/* line number of first line on screen */
+extern int Insert_mode;		/* flag to specify character insertion */
+extern int Invert_case;		/* flag to specify case mapping on input */
+extern int First_affected;	/* number of first line affected by cmd */
+extern int Rel_a;		/* char to use for first alpha line number */
+extern int Rel_z;		/* char to use for last alpha line number */
+extern int Scline[MAXROWS];	/* lines currently on screen (rel to Sctop) */
+extern int Sctop;		/* first line currently on screen */
+extern int Sclen;		/* number of lines currently on screen */
+extern char Blanks[MAXCOLS];	/* all blanks for filling in lines on screen */
+extern char Tobuf[MAXTOBUF];	/* buffer for collecting terminal output */
+extern char *Tobp;		/* pointer to last used part of Tobuf */
+
+
+/* Concerning interrupts: */
+extern int Int_caught;		/* caught a SIGINT from user */
+extern int Hup_caught;		/* caught a SIGHUP when phone line dropped */
+extern int Catching_stops;	/* catching or ignoring SIGTSTP's? */
+
+
+/* Concerning file encryption: */
+extern int Crypting;		/* doing file encryption? */
+extern char Key[KEYSIZE];	/* encryption key */
+
+#endif
--- a/Show More
+++ b/Show More