Changelog for dstrings-ext.c.

Unattributed changes are by the initial author, David N.
Williams.  The revision date in the source file may be more
recent than the most recent date here, when only cosmetic
changes have been made.

Version 0.7.3
 8Oct06 * Fixed comments for doc autogeneration.
	* Added $GC-LOCK@ and $GC-LOCK!, to dstrings.fs as well,
	  with tests in dstrings-test.fs.
	* Removed ChangeLog from our archive in favor of this
	  file as the main log.  A summary will be included in
	  the pfe ChangeLog via CVS.

Version 0.7.2
 7Jun04 * Start synchronization with ANS Forth implementation.
10Jun04 * Changed MAX_DATA_STR to be the same as MAX_MCOUNT for
          long count fields, like it already is for char and
          short.
11Jun04 * Cosmetic changes to comments.
        * Changed the name S, to SM,.
        * Added /MCOUNT, MAX-MCOUNT
12Jun04 * Promoted $FRAME-DEPTH from debug.  Renamed other
          debugging words to agree with dstrings.fs
          under-the-hood words, and rationalized labels.
        * Added MCOUNT@, MCOUNT!, MCOUNT, -MCOUNT.
        * Renamed FIND-ARG as FIND-$ARG.  At some point ARGS{
          was renamed as $ARGS{ -- maybe here.
13Jun04 * Rationalized some labels.
        * Made PARSE>S state smart.  There's a problem with
          SEEing words that use it.
14Jun04 * Added under the hood words $POP, $PUSH-EXT,
          IN$BUFFER?, PARSE>$.
15Jun04 * Factored p4_mstring_place() out of p4_mstring_comma().
          Question:  is there a pfe DP update that checks
          overflow?
        * Found problem with GARBAGE? and flag cast.
        * Added PARSE-CAT.  Factored p4_s_cat() out of S-CAT to
          implement it.  Untested.
12Jul04 * Fixed bug in $! in dynamic string copy for a string
          stored in two variables.
        * Added interpretation mode for CAT" and CAT` and fixed
          it for PARSE-CAT.  Added #$ARGS.
13Jul04 * Added TH-$ARG.  Changed ARGS{ to read across lines.
        * Passed dstrings-test.fs and trydstrings.fs, including
          char and long counts.
14Jul04 * Rearranged words to be more like dstrings-words.txt.
15Jul04 * Updated dstrings-ext.h prototypes.
        * Added some casts to remove warnings.  Added comments
          for "more string space" words.
16Jul04 * Renamed IN$BUFFER as IN-$BUFFER.  Added /$FRAME-ITEM.
25Jul04 * Cosmetic changes, replaced remaining examples of
          "Forth string" by "ANS Forth string" where
          appropriate.
17Jul04 * Bug in the $FRAME underflow exception revealed by
          dstrings-test.fs, in turn revealed inadequacy in the
          test, and a $FRAME bug in dstrings.fs as well.  All
          fixed.
19Jul04 * Rationalized some macro names in dstrings-ext.h. 
        * Collapsed count size logic into a single USER-CONFIG,
          PFE_CASEOF_MCOUNT, and tested.
        * Passed dstrings-test.fs with all three count-field
          sizes.  After changing ARGS{ to $ARGS{ in
          trydstrings.fs, all three passed there, too.
 8Oct04 * Inserted obsolete names with pfe warning via P4_xOLD
          and P4_iOLD for the name changes mentioned in the
          summarized ChangeLog:
          Old             New
          FIND-ARG        FIND-$ARG
          ARGS{           $ARGS{
          S,              SM,
	* Modifed "Name changes" item in ChangeLog to reflect
	  this, and changed release date there from 2004-07-19
	  to 2004-10-08.
 7Jan05 * Absorbed Guido's adjustments for pfe-0.33.56.

Version 0.6.30
18Mar03 * Fixed inverted pronunciations of GC-OFF and GC-ON.
        * Added ( ior) DROP after FREE in trydstrings.fs.

Version 0.6.29 <guidod@gmx.de>
28Feb03 * modified files to pick up P4_VAR: 
        * merge with Tektronix CMS..........

Version 0.6.26
27Jun02 * Fixed bug in ENDCAT so it properly leaves EMPTY$ when
          there is no concatenation in progress.  Also fixed
          ENDCAT specification in dstrings-ext.c, as well as in
          dstrings.html (not in pfe distribution).

Version 0.6.25
29May02 * Fixed bug in SEE-handling for ARGS{ words.
        * Promoted $GARBAGE? to the regular dstrings word list.
        * Renamed M" and M` to CAT" and CAT`.  Much more
          descriptive, and Guido's SYNONYM uninhibits the user
          from defining shorter synonyms.
        * Changed C names and labels to reflect mstring
          (measured string) replacement for pstring (packed
          string) terminology.
        * Added conditional throw compiles (#if mcount size less
          than cell size) for mcount overflow on cats and Forth
          string copies into the string buffer.  Cleaned up and
          consolidated USER-CONFIG's for mcount size.
        * Reviewed and updated in-source documentation, updated
          prototypes.
        * Revised dstrings.html and smodel.html.
        * Changed the default USER-CONFIG from short-counted
          (nominally 16-bits) to long-counted strings (nominally
          32-bits).
        * Added $FRAME-DEPTH to debugging section.
        * Fixed a bug in ENDCAT revealed by testing with
          char-size counts.  Tests with char, short, and long
          all work, as far as they go...

Version 0.6.24
13May02 * Fixed bug in p4_collect_garbage() where a string stack
          scan to update forward links was omitted for dynamic
          strings bound to variables.  Also made the link update
          code more efficient.
        * Fixed another bug in p4_collect_garbage() by moving
          "target = next;" at top of do-loop from inside to
          outside the loop.
        * Added $GARBAGE? in the debugging section.  Maybe it
          should be promoted to the regular dstrings word list.
        * Improved trystrings.fs and renamed as trydstrings.fs.

Version 0.6.23
19Mar02 * Evolved from 16Dec00.