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author | Jeff Bailey <jbailey@raspberryginger.com> | 2000-02-17 03:03:19 +0000 |
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committer | Jeff Bailey <jbailey@raspberryginger.com> | 2000-02-17 03:03:19 +0000 |
commit | bd11691d6520f7539e7ed2efdf75f266719e27e9 (patch) | |
tree | 13d3a4e534f6df846a128af52438769b9f51f09e /NEWS | |
download | m4-bd11691d6520f7539e7ed2efdf75f266719e27e9.tar.gz |
Initial revision
Diffstat (limited to 'NEWS')
-rw-r--r-- | NEWS | 200 |
1 files changed, 200 insertions, 0 deletions
@@ -0,0 +1,200 @@ +GNU m4 NEWS - User visible changes. +Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. + +Version 1.4 - October 1994, by Franc,ois Pinard + +(No user visible changes) + +Version 1.3 - September 1994, by Franc,ois Pinard + +* Diversions are created as needed. Option `-N' is still accepted, but +otherwise ignored. Users should use only negative diversion numbers, +instead of high positive numbers, for diverting to nowhere. + +* Diversions should also work faster. No temporary files will be needed +at all if all diversions taken altogether do not use more than 512K. + +* Frozen state files may be produced with the `--freeze-state' (-F) +option and later brought back through the `--reload-state' (-R) option. + +Version 1.2 - July 1994, by Franc,ois Pinard + +* In patsubst(STRING, REGEXP, REPLACEMENT), \& in REPLACEMENT has been +changed to represent this part of STRING matched by the whole REGEXP, +instead of the whole STRING as before. \0 does the same, but emits a +diagnostic saying it will disappear in some subsequent release. + +* eval(EXPR) emits a diagnostic if EXPR has suffixed crumb. The same for +other numeric conversions in incr(), decr(), divert(), etc. + +* `--fatal-warnings' (-E) stops execution at first warning. + +* `--nesting-limit=LEVEL' (-L LEVEL) sets a limit to macro nesting. +It is initially fixed at 250. + +* `--word-regexp=REGEXP' (-W REGEXP) modifies macro name syntax, like +does the new `changeword(REGEXP)' macro. This feature is experimental, +tell me your opinions about it. You do need --enable-changeword at +configure time to get these things. Do *not* depend on them yet. + +* Trace output format is scannable by GNU Emacs' next-error function. + +* Stack overflow is detected and diagnosed on some capable systems. + +* Various bugs have been corrected, m4 should be more portable. See the +ChangeLog for details. + +Version 1.1 - November 1993, by Franc,ois Pinard + +Changes which might affect existing GNU m4 scripts: + +* Option `-V' has been removed, use `--version' instead. `--version' +writes on standard output instead of standard error, and inhibits any +script execution. + +* `--no-gnu-extensions' has been renamed `--traditional'. + +* In `eval', `^' used to indicate exponentiation, use `**' instead. + +* The automatic undiversion which takes place at end of all input is +forced into the main output stream. + +Changes which are unlikely to affect existing scripts: + +* `--help' prints an usage summary on standard output. Script execution +is then inhibited. + +* `--prefix-builtins' (-P) prefixes all builtin macros by `m4_'. + +* Most builtin macros for which arguments are mandatory, called without +any arguments, are no more recognized as builtin macros: they are +consequently copied verbatim to the output stream. + +* `define' and `pushdef' are usable with only one argument, they give +this argument an empty definition. + +* `eval' new operators for binary representation handling: `^' for +exclusive-or, `~' for the bitwise negation, `<<' and `>>' for shifts. + +* `eval' recognizes the notation 0bDIGITS for binary numbers and the +notation 0rRADIX:DIGITS for numbers in any radix from 1 to 36. + +Version 1.0.3 - December 1992, by Franc,ois Pinard + +Changes for the user: + +* `dnl' outputs a diagnostic if immediately followed by `('. Usually, +`dnl' is followed by newline or whitespace. + +* `ifelse' accepts without complaining the common idiom of having only +one argument. This is useful for introducing long comments. + +* `eval' always expresses values as signed, whatever the radix. + +* M4OPTS environment variable is no longer obeyed. + +* `--no-warnings' option is renamed `--silent'. + +* Debug lines use a new format more compatible with GNU standards. + +* Various bugs have been corrected. See the ChangeLog for details. + +Changes for the installer: + +* GNU m4 now uses an Autoconf-generated configure script, and should be +more easily portable in many ways. (Cray is not supported yet). + +* `make check' has been made more portable, expect no errors. + +Changes for the programmer: + +* Sources have been fully reindented to comply with GNU standards, and +cleaned up in many ways. + +* Sources have been protoized. Non-ANSI compilers are automatically +detected, then sources are unprotoized on the fly before compilation. + +* GNU m4 uses newer versions of obstack, regex, getopt, etc. + +Version 1.0 - October 1991, by Rene' Seindal + +* Uses GNU configure, taken from the gdb distribution. + +* Uses GNU getopt(), with long option names. + +* The -Q/+quiet option is added, which suppresses warnings about missing +or superflous arguments to built-in macros. + +* Added default options via the M4OPTS environment variable. + +* Several minor bugs have been fixed. + +Version 0.99 - July 1991, by Rene' Seindal + +* The builtins `incr' and `decr' are now implemented without use of +`eval'. + +* The builtin `indir' is added, to allow for indirect macro calls +(allows use of "illegal" macro names). + +* The debugging and tracing facilities has been enhanced considerably. +See the manual for details. + +* The -tMACRO option is added, marks MACRO for tracing as soon as it +is defined. + +* Builtins are traced after renaming iff they were before. + +* Named files can now be undiverted. + +* The -Nnum option can be used to increase the number of divertions +available. + +* Calling changecom without arguments now disables all comment handling. + +* A bug in `dnl' is fixed. + +* A bug in the multi-character quoting code is fixed. + +* Several typos in the manual has been corrected. More probably persist. + +Version 0.75 - November 1990, by Rene' Seindal + +* Implemented search path for include files (-I option and M4PATH +environment variable). + +* Implemented builtin `format' for printf-like formatting. + +* Implemented builtin `regexp' for searching for regular expressions. + +* Implemented builtin `patsubst' for substitution with regular +expressions. + +* Implemented builtin `esyscmd', which expands to a shell commands output. + +* Implemented `__file__' and `__line__' for use in error messages. + +* Implemented character ranges in `translit'. + +* Implemented control over debugging output. + +* Implemented multi-character quotes. + +* Implemented multi-character comment delimiters. + +* Changed predefined macro `gnu' to `__gnu__'. + +* Changed predefined macro `unix' to `__unix__', when the -G option is +not used. With -G, `unix' is still defined. + +* Added program name to error messages. + +* Fixed two missing null bytes bugs. + +Version 0.50 - January 1990, by Rene' Seindal + +* Initial beta release. + +Local Variables: +fill-column: 75 +End: |