Annotation of src/usr.bin/awk/FIXES, Revision 1.29
1.29 ! millert 1: /* $OpenBSD: FIXES,v 1.28 2020/06/10 21:03:36 millert Exp $ */
1.1 tholo 2: /****************************************************************
1.6 kstailey 3: Copyright (C) Lucent Technologies 1997
1.1 tholo 4: All Rights Reserved
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1.6 kstailey 11: documentation, and that the name Lucent Technologies or any of
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1.1 tholo 24: ****************************************************************/
25:
26: This file lists all bug fixes, changes, etc., made since the AWK book
27: was sent to the printers in August, 1987.
1.29 ! millert 28:
! 29: November 10, 2019:
! 30: Convert a number of Boolean integer variables into
! 31: actual bools. Convert compile_time variable into an
! 32: enum and simplify some of the related code. Thanks
! 33: to Arnold Robbins.
! 34:
! 35: November 8, 2019:
! 36: Fix from Ori Bernstein to get UTF-8 characters instead of
! 37: bytes when FS = "". This is currently the only bit of
! 38: the One True Awk that understands multibyte characters.
! 39: From Arnold Robbins, apply some cleanups in the test suite.
1.28 millert 40:
41: October 25, 2019:
42: More fixes and cleanups from NetBSD, courtesy of Christos
43: Zoulas. Merges PRs 54 and 55.
44:
45: October 24, 2019:
46: Import second round of code cleanups from NetBSD. Much thanks
47: to Christos Zoulas (Github user zoulasc). Merges PR 53.
48: Add an optimization for string concatenation, also from
49: Christos.
1.27 millert 50:
51: October 17, 2019:
52: Import code cleanups from NetBSD. Much thanks to Christos
53: Zoulas (Github user zoulasc). Merges PR 51.
1.26 millert 54:
55: October 6, 2019:
56: Import code from NetBSD awk that implements RS as a regular
57: expression.
1.23 millert 58:
1.25 millert 59: September 10, 2019:
60: Fixes for various array / memory overruns found via gcc's
61: -fsanitize=unknown. Thanks to Alexander Richardson (Github
62: user arichardson). Merges PRs 47 and 48.
63:
64: July 28, 2019:
65: Import grammar optimization from NetBSD: Two string constants
66: concatenated together get turned into a single string.
67:
68: July 26, 2019:
69: Support POSIX-specified C-style escape sequences "\a" (alarm)
70: and "\v" (vertical tab) in command line arguments and regular
71: expressions, further to the support for them in strings added on
72: Apr 9, 1989. These now no longer match as literal "a" and "v"
73: characters (as they don't on other awk implementations).
74: Thanks to Martijn Dekker.
75:
76: July 17, 2019:
77: Pull in a number of code cleanups and minor fixes from
78: Warner Losh's bsd-ota branch. The only user visible change
79: is the use of random(3) as the random number generator.
80: Thanks to Warner Losh for collecting all these fixes in
81: one easy place to get them from.
82:
83: July 16, 2019:
84: Fix field splitting to use FS value as of the time a record
85: was read or assigned to. Thanks to GitHub user Cody Mello (melloc)
86: for the fix. (Merged from his branch, via PR #42.) Updated
87: testdir/T.split per said PR as well.
88:
89: June 24, 2019:
90: Extract awktest.tar into testdir directory. Add some very
91: simple mechanics to the makefile for running the tests and
92: for cleaning up. No changes to awk itself.
93:
1.24 millert 94: June 17, 2019:
95: Disallow deleting SYMTAB and its elements, which creates
96: use-after-free bugs. Thanks to GitHub user Cody Mello (melloc)
97: for the fix. (Merged from PR #43.)
98:
99: June 5, 2019:
100: Allow unmatched right parenthesis in a regular expression to
101: be treated literally. Fixes Issue #40. Thanks to GitHub user
102: Warner Losh (bsdimp) for the report. Thanks to Arnold Robbins
103: for the fix.
104:
105: May 29,2019:
106: Fix check for command line arguments to no longer require that
107: first character after '=' not be another '='. Reverts change of
108: August 11, 1989. Thanks to GitHub user Jamie Landeg Jones for
109: pointing out the issue; from Issue #38.
110:
111: Apr 7, 2019:
112: Update awktest.tar(p.50) to use modern options to sort. Needed
113: for Android development. Thanks to GitHub user mohd-akram (Mohamed
114: Akram). From Issue #33.
115:
116: Mar 12, 2019:
117: Added very simplistic support for cross-compiling in the
118: makefile. We are NOT going to go in the direction of the
119: autotools, though. Thanks to GitHub user nee-san for
120: the basic change. (Merged from PR #34.)
121:
1.23 millert 122: Mar 5, 2019:
123: Added support for POSIX-standard interval expressions (a.k.a.
124: bounds, a.k.a. repetition expressions) in regular expressions,
125: backported (via NetBSD) from Apple awk-24 (20070501).
126: Thanks to Martijn Dekker <martijn@inlv.org> for the port.
127: (Merged from PR #30.)
128:
129: Mar 3, 2019:
130: Merge PRs as follows:
131: #12: Avoid undefined behaviour when using ctype(3) functions in
132: relex(). Thanks to GitHub user iamleot.
133: #31: Make getline handle numeric strings, and update FIXES. Thanks
1.24 millert 134: to GitHub user arnoldrobbins.
1.23 millert 135: #32: maketab: support build systems with read-only source. Thanks
136: to GitHub user enh.
1.22 millert 137:
138: Jan 25, 2019:
139: Make getline handle numeric strings properly in all cases.
140: (Thanks, Arnold.)
141:
142: Jan 21, 2019:
143: Merged a number of small fixes from GitHub pull requests.
144: Thanks to GitHub users Arnold Robbins (arnoldrobbins),
145: Cody Mello (melloc) and Christoph Junghans (junghans).
146: PR numbers: 13-21, 23, 24, 27.
1.21 millert 147:
148: Oct 25, 2018:
149: Added test in maketab.c to prevent generating a proctab entry
150: for YYSTYPE_IS_DEFINED. It was harmless but some gcc settings
151: generated a warning message. Thanks to Nan Xiao for report.
1.20 millert 152:
153: Aug 27, 2018:
154: Disallow '$' in printf formats; arguments evaluated in order
155: and printed in order.
156:
157: Added some casts to silence warnings on debugging printfs.
158: (Thanks, Arnold.)
1.18 millert 159:
1.19 millert 160: Aug 23, 2018:
161: A long list of fixes courtesy of Arnold Robbins,
162: to whom profound thanks.
163:
164: 1. ofs-rebuild: OFS value used to rebuild the record was incorrect.
165: Fixed August 19, 2014. Revised fix August 2018.
166:
167: 2. system-status: Instead of a floating-point division by 256, use
168: the wait(2) macros to create a reasonable exit status.
169: Fixed March 12, 2016.
170:
171: 3. space: Use provided xisblank() function instead of ispace() for
172: matching [[:blank:]].
173:
174: 4. a-format: Add POSIX standard %a and %A to supported formats. Check
175: at runtime that this format is available.
176:
177: 5. decr-NF: Decrementing NF did not change $0. This is a decades-old
178: bug. There are interactions with the old and new value of OFS as well.
179: Most of the fix came from the NetBSD awk.
180:
181: 6. string-conv: String conversions of scalars were sticky. Once a
182: conversion to string happened, even with OFMT, that value was used until
183: a new numeric value was assigned, even if OFMT differed from CONVFMT,
184: and also if CONVFMT changed.
185:
186: 7. unary-plus: Unary plus on a string constant returned the string.
187: Instead, it should convert the value to numeric and give that value.
188:
189: Also added Arnold's tests for these to awktest.tar as T.arnold.
190:
191: Aug 15, 2018:
192: fixed mangled awktest.tar (thanks, Arnold), posted all
193: current (very minor) fixes to github / onetrueawk
194:
1.18 millert 195: Jun 7, 2018:
196: (yes, a long layoff)
197: Updated some broken tests (beebe.tar, T.lilly)
198: [thanks to Arnold Robbins]
199:
200: Mar 26, 2015:
201: buffer overflow in error reporting; thanks to tobias ulmer
202: and john-mark gurney for spotting it and the fix.
203:
204: Feb 4, 2013:
205: cleaned up a handful of tests that didn't seem to actually
206: test for correct behavior: T.latin1, T.gawk.
207:
208: Jan 5, 2013:
209: added ,NULL initializer to static Cells in run.c; not really
210: needed but cleaner. Thanks to Michael Bombardieri.
1.17 millert 211:
212: Dec 20, 2012:
213: fiddled makefile to get correct yacc and bison flags. pick yacc
214: (linux) or bison (mac) as necessary.
215:
216: added __attribute__((__noreturn__)) to a couple of lines in
217: proto.h, to silence someone's enthusiastic checker.
218:
219: fixed obscure call by value bug in split(a[1],a) reported on
220: 9fans. the management of temporary values is just a mess; i
221: took a shortcut by making an extra string copy. thanks
222: to paul patience and arnold robbins for passing it on and for
223: proposed patches.
224:
225: tiny fiddle in setfval to eliminate -0 results in T.expr, which
226: has irritated me for 20+ years.
1.16 millert 227:
228: Aug 10, 2011:
229: another fix to avoid core dump with delete(ARGV); again, many thanks
230: to ruslan ermilov.
231:
232: Aug 7, 2011:
233: split(s, a, //) now behaves the same as split(s, a, "")
234:
235: Jun 12, 2011:
236: /pat/, \n /pat/ {...} is now legal, though bad style to use.
237:
238: added checks to new -v code that permits -vnospace; thanks to
1.25 millert 239: ruslan ermilov for spotting this and providing the patch.
1.16 millert 240:
241: removed fixed limit on number of open files; thanks to aleksey
1.25 millert 242: cheusov and christos zoulos.
1.16 millert 243:
244: fixed day 1 bug that resurrected deleted elements of ARGV when
245: used as filenames (in lib.c).
246:
247: minor type fiddles to make gcc -Wall -pedantic happier (but not
248: totally so); turned on -fno-strict-aliasing in makefile.
249:
250: May 6, 2011:
251: added #ifdef for isblank.
252: now allows -ffoo as well as -f foo arguments.
253: (thanks, ruslan)
254:
255: May 1, 2011:
256: after advice from todd miller, kevin lo, ruslan ermilov,
257: and arnold robbins, changed srand() to return the previous
258: seed (which is 1 on the first call of srand). the seed is
259: an Awkfloat internally though converted to unsigned int to
1.25 millert 260: pass to the library srand(). thanks, everyone.
1.16 millert 261:
262: fixed a subtle (and i hope low-probability) overflow error
1.25 millert 263: in fldbld, by adding space for one extra \0. thanks to
1.16 millert 264: robert bassett for spotting this one and providing a fix.
265:
266: removed the files related to compilation on windows. i no
267: longer have anything like a current windows environment, so
268: i can't test any of it.
1.15 millert 269:
270: May 23, 2010:
271: fixed long-standing overflow bug in run.c; many thanks to
272: nelson beebe for spotting it and providing the fix.
273:
274: fixed bug that didn't parse -vd=1 properly; thanks to santiago
275: vila for spotting it.
276:
277: Feb 8, 2010:
278: i give up. replaced isblank with isspace in b.c; there are
279: no consistent header files.
280:
281: Nov 26, 2009:
282: fixed a long-standing issue with when FS takes effect. a
283: change to FS is now noticed immediately for subsequent splits.
284:
285: changed the name getline() to awkgetline() to avoid yet another
286: name conflict somewhere.
287:
288: Feb 11, 2009:
289: temporarily for now defined HAS_ISBLANK, since that seems to
290: be the best way through the thicket. isblank arrived in C99,
291: but seems to be arriving at different systems at different
292: times.
293:
294: Oct 8, 2008:
295: fixed typo in b.c that set tmpvec wrongly. no one had ever
296: run into the problem, apparently. thanks to alistair crooks.
1.14 millert 297:
298: Oct 23, 2007:
299: minor fix in lib.c: increase inputFS to 100, change malloc
1.25 millert 300: for fields to n+1.
1.14 millert 301:
302: fixed memory fault caused by out of order test in setsval.
303:
304: thanks to david o'brien, freebsd, for both fixes.
305:
306: May 1, 2007:
307: fiddle in makefile to fix for BSD make; thanks to igor sobrado.
308:
309: Mar 31, 2007:
310: fixed some null pointer refs calling adjbuf.
311:
312: Feb 21, 2007:
313: fixed a bug in matching the null RE in sub and gsub. thanks to al aho
314: who actually did the fix (in b.c), and to wolfgang seeberg for finding
315: it and providing a very compact test case.
316:
317: fixed quotation in b.c; thanks to Hal Pratt and the Princeton Dante
318: Project.
319:
320: removed some no-effect asserts in run.c.
321:
322: fiddled maketab.c to not complain about bison-generated values.
323:
324: removed the obsolete -V argument; fixed --version to print the
325: version and exit.
326:
327: fixed wording and an outright error in the usage message; thanks to igor
328: sobrado and jason mcintyre.
329:
330: fixed a bug in -d that caused core dump if no program followed.
331:
332: Jan 1, 2007:
333: dropped mac.code from makefile; there are few non-MacOSX
334: mac's these days.
335:
336: Jan 17, 2006:
337: system() not flagged as unsafe in the unadvertised -safe option.
338: found it while enhancing tests before shipping the ;login: article.
339: practice what you preach.
340:
341: removed the 9-years-obsolete -mr and -mf flags.
342:
343: added -version and --version options.
344:
345: core dump on linux with BEGIN {nextfile}, now fixed.
346:
1.25 millert 347: removed some #ifdef's in run.c and lex.c that appear to no
1.14 millert 348: longer be necessary.
349:
350: Apr 24, 2005:
351: modified lib.c so that values of $0 et al are preserved in the END
352: block, apparently as required by posix. thanks to havard eidnes
353: for the report and code.
354:
355: Jan 14, 2005:
356: fixed infinite loop in parsing, originally found by brian tsang.
357: thanks to arnold robbins for a suggestion that started me
358: rethinking it.
359:
360: Dec 31, 2004:
1.25 millert 361: prevent overflow of -f array in main, head off potential error in
362: call of SYNTAX(), test malloc return in lib.c, all with thanks to
1.14 millert 363: todd miller.
1.13 millert 364:
365: Dec 22, 2004:
366: cranked up size of NCHARS; coverity thinks it can be overrun with
367: smaller size, and i think that's right. added some assertions to b.c
368: to catch places where it might overrun. the RE code is still fragile.
369:
370: Dec 5, 2004:
371: fixed a couple of overflow problems with ridiculous field numbers:
372: e.g., print $(2^32-1). thanks to ruslan ermilov, giorgos keramidas
373: and david o'brien at freebsd.org for patches. this really should
374: be re-done from scratch.
375:
376: Nov 21, 2004:
377: fixed another 25-year-old RE bug, in split. it's another failure
378: to (re-)initialize. thanks to steve fisher for spotting this and
379: providing a good test case.
380:
381: Nov 22, 2003:
382: fixed a bug in regular expressions that dates (so help me) from 1977;
383: it's been there from the beginning. an anchored longest match that
384: was longer than the number of states triggered a failure to initialize
385: the machine properly. many thanks to moinak ghosh for not only finding
386: this one but for providing a fix, in some of the most mysterious
387: code known to man.
388:
389: fixed a storage leak in call() that appears to have been there since
1.25 millert 390: 1983 or so -- a function without an explicit return that assigns a
391: string to a parameter leaked a Cell. thanks to moinak ghosh for
1.13 millert 392: spotting this very subtle one.
393:
394: Jul 31, 2003:
395: fixed, thanks to andrey chernov and ruslan ermilov, a bug in lex.c
396: that mis-handled the character 255 in input. (it was being compared
397: to EOF with a signed comparison.)
398:
399: Jul 29, 2003:
400: fixed (i think) the long-standing botch that included the beginning of
401: line state ^ for RE's in the set of valid characters; this led to a
402: variety of odd problems, including failure to properly match certain
403: regular expressions in non-US locales. thanks to ruslan for keeping
404: at this one.
405:
406: Jul 28, 2003:
407: n-th try at getting internationalization right, with thanks to volker
408: kiefel, arnold robbins and ruslan ermilov for advice, though they
409: should not be blamed for the outcome. according to posix, "." is the
410: radix character in programs and command line arguments regardless of
411: the locale; otherwise, the locale should prevail for input and output
412: of numbers. so it's intended to work that way.
1.25 millert 413:
1.13 millert 414: i have rescinded the attempt to use strcoll in expanding shorthands in
415: regular expressions (cclenter). its properties are much too
416: surprising; for example [a-c] matches aAbBc in locale en_US but abBcC
417: in locale fr_CA. i can see how this might arise by implementation
418: but i cannot explain it to a human user. (this behavior can be seen
419: in gawk as well; we're leaning on the same library.)
420:
421: the issue appears to be that strcoll is meant for sorting, where
422: merging upper and lower case may make sense (though note that unix
423: sort does not do this by default either). it is not appropriate
424: for regular expressions, where the goal is to match specific
425: patterns of characters. in any case, the notations [:lower:], etc.,
426: are available in awk, and they are more likely to work correctly in
427: most locales.
428:
429: a moratorium is hereby declared on internationalization changes.
430: i apologize to friends and colleagues in other parts of the world.
431: i would truly like to get this "right", but i don't know what
432: that is, and i do not want to keep making changes until it's clear.
433:
434: Jul 4, 2003:
435: fixed bug that permitted non-terminated RE, as in "awk /x".
436:
437: Jun 1, 2003:
438: subtle change to split: if source is empty, number of elems
439: is always 0 and the array is not set.
440:
441: Mar 21, 2003:
442: added some parens to isblank, in another attempt to make things
443: internationally portable.
444:
445: Mar 14, 2003:
446: the internationalization changes, somewhat modified, are now
447: reinstated. in theory awk will now do character comparisons
448: and case conversions in national language, but "." will always
449: be the decimal point separator on input and output regardless
450: of national language. isblank(){} has an #ifndef.
451:
452: this no longer compiles on windows: LC_MESSAGES isn't defined
453: in vc6++.
454:
455: fixed subtle behavior in field and record splitting: if FS is
456: a single character and RS is not empty, \n is NOT a separator.
457: this tortuous reading is found in the awk book; behavior now
458: matches gawk and mawk.
1.11 millert 459:
460: Dec 13, 2002:
461: for the moment, the internationalization changes of nov 29 are
462: rolled back -- programs like x = 1.2 don't work in some locales,
463: because the parser is expecting x = 1,2. until i understand this
464: better, this will have to wait.
465:
466: Nov 29, 2002:
467: modified b.c (with tiny changes in main and run) to support
468: locales, using strcoll and iswhatever tests for posix character
469: classes. thanks to ruslan ermilov (ru@freebsd.org) for code.
470: the function isblank doesn't seem to have propagated to any
471: header file near me, so it's there explicitly. not properly
472: tested on non-ascii character sets by me.
473:
474: Jun 28, 2002:
475: modified run/format() and tran/getsval() to do a slightly better
476: job on using OFMT for output from print and CONVFMT for other
1.25 millert 477: number->string conversions, as promised by posix and done by
1.11 millert 478: gawk and mawk. there are still places where it doesn't work
479: right if CONVFMT is changed; by then the STR attribute of the
480: variable has been irrevocably set. thanks to arnold robbins for
481: code and examples.
482:
483: fixed subtle bug in format that could get core dump. thanks to
484: Jaromir Dolecek <jdolecek@NetBSD.org> for finding and fixing.
485: minor cleanup in run.c / format() at the same time.
486:
487: added some tests for null pointers to debugging printf's, which
488: were never intended for external consumption. thanks to dave
489: kerns (dkerns@lucent.com) for pointing this out.
490:
491: GNU compatibility: an empty regexp matches anything (thanks to
492: dag-erling smorgrav, des@ofug.org). subject to reversion if
493: this does more harm than good.
494:
495: pervasive small changes to make things more const-correct, as
496: reported by gcc's -Wwrite-strings. as it says in the gcc manual,
497: this may be more nuisance than useful. provoked by a suggestion
498: and code from arnaud desitter, arnaud@nimbus.geog.ox.ac.uk
499:
500: minor documentation changes to note that this now compiles out
501: of the box on Mac OS X.
502:
503: Feb 10, 2002:
504: changed types in posix chars structure to quiet solaris cc.
505:
506: Jan 1, 2002:
507: fflush() or fflush("") flushes all files and pipes.
508:
1.25 millert 509: length(arrayname) returns number of elements; thanks to
1.11 millert 510: arnold robbins for suggestion.
511:
512: added a makefile.win to make it easier to build on windows.
513: based on dan allen's buildwin.bat.
514:
515: Nov 16, 2001:
516: added support for posix character class names like [:digit:],
517: which are not exactly shorter than [0-9] and perhaps no more
518: portable. thanks to dag-erling smorgrav for code.
519:
520: Feb 16, 2001:
521: removed -m option; no longer needed, and it was actually
522: broken (noted thanks to volker kiefel).
523:
524: Feb 10, 2001:
525: fixed an appalling bug in gettok: any sequence of digits, +,-, E, e,
526: and period was accepted as a valid number if it started with a period.
527: this would never have happened with the lex version.
528:
529: other 1-character botches, now fixed, include a bare $ and a
530: bare " at the end of the input.
531:
532: Feb 7, 2001:
533: more (const char *) casts in b.c and tran.c to silence warnings.
1.8 millert 534:
1.10 millert 535: Nov 15, 2000:
536: fixed a bug introduced in august 1997 that caused expressions
537: like $f[1] to be syntax errors. thanks to arnold robbins for
538: noticing this and providing a fix.
539:
540: Oct 30, 2000:
541: fixed some nextfile bugs: not handling all cases. thanks to
542: arnold robbins for pointing this out. new regressions added.
543:
544: close() is now a function. it returns whatever the library
545: fclose returns, and -1 for closing a file or pipe that wasn't
546: opened.
547:
548: Sep 24, 2000:
549: permit \n explicitly in character classes; won't work right
550: if comes in as "[\n]" but ok as /[\n]/, because of multiple
551: processing of \'s. thanks to arnold robbins.
552:
553: July 5, 2000:
554: minor fiddles in tran.c to keep compilers happy about uschar.
555: thanks to norman wilson.
556:
557: May 25, 2000:
558: yet another attempt at making 8-bit input work, with another
1.25 millert 559: band-aid in b.c (member()), and some (uschar) casts to head
1.10 millert 560: off potential errors in subscripts (like isdigit). also
561: changed HAT to NCHARS-2. thanks again to santiago vila.
562:
563: changed maketab.c to ignore apparently out of range definitions
564: instead of halting; new freeBSD generates one. thanks to
565: jon snader <jsnader@ix.netcom.com> for pointing out the problem.
566:
567: May 2, 2000:
568: fixed an 8-bit problem in b.c by making several char*'s into
569: unsigned char*'s. not clear i have them all yet. thanks to
570: Santiago Vila <sanvila@unex.es> for the bug report.
571:
572: Apr 21, 2000:
573: finally found and fixed a memory leak in function call; it's
574: been there since functions were added ~1983. thanks to
575: jon bentley for the test case that found it.
576:
577: added test in envinit to catch environment "variables" with
1.12 otto 578: names beginning with '='; thanks to Berend Hasselman.
1.10 millert 579:
580: Jul 28, 1999:
581: added test in defn() to catch function foo(foo), which
582: otherwise recurses until core dump. thanks to arnold
583: robbins for noticing this.
584:
1.9 millert 585: Jun 20, 1999:
586: added *bp in gettok in lex.c; appears possible to exit function
587: without terminating the string. thanks to russ cox.
588:
589: Jun 2, 1999:
590: added function stdinit() to run to initialize files[] array,
591: in case stdin, etc., are not constants; some compilers care.
592:
593: May 10, 1999:
594: replaced the ERROR ... FATAL, etc., macros with functions
595: based on vprintf, to avoid problems caused by overrunning
596: fixed-size errbuf array. thanks to ralph corderoy for the
597: impetus, and for pointing out a string termination bug in
598: qstring as well.
599:
600: Apr 21, 1999:
601: fixed bug that caused occasional core dumps with commandline
602: variable with value ending in \. (thanks to nelson beebe for
603: the test case.)
604:
1.8 millert 605: Apr 16, 1999:
1.25 millert 606: with code kindly provided by Bruce Lilly, awk now parses
1.8 millert 607: /=/ and similar constructs more sensibly in more places.
1.10 millert 608: Bruce also provided some helpful test cases.
1.8 millert 609:
610: Apr 5, 1999:
611: changed true/false to True/False in run.c to make it
612: easier to compile with C++. Added some casts on malloc
613: and realloc to be honest about casts; ditto. changed
614: ltype int to long in struct rrow to reduce some 64-bit
615: complaints; other changes scattered throughout for the
616: same purpose. thanks to Nelson Beebe for these portability
617: improvements.
618:
619: removed some horrible pointer-int casting in b.c and elsewhere
620: by adding ptoi and itonp to localize the casts, which are
621: all benign. fixed one incipient bug that showed up on sgi
622: in 64-bit mode.
623:
624: reset lineno for new source file; include filename in error
625: message. also fixed line number error in continuation lines.
626: (thanks to Nelson Beebe for both of these.)
627:
628: Mar 24, 1999:
629: Nelson Beebe notes that irix 5.3 yacc dies with a bogus
630: error; use a newer version or switch to bison, since sgi
631: is unlikely to fix it.
1.1 tholo 632:
1.7 millert 633: Mar 5, 1999:
1.9 millert 634: changed isnumber to is_number to avoid the problem caused by
635: versions of ctype.h that include the name isnumber.
1.7 millert 636:
637: distribution now includes a script for building on a Mac,
638: thanks to Dan Allen.
639:
640: Feb 20, 1999:
641: fixed memory leaks in run.c (call) and tran.c (setfval).
642: thanks to Stephen Nutt for finding these and providing the fixes.
643:
644: Jan 13, 1999:
645: replaced srand argument by (unsigned int) in run.c;
646: avoids problem on Mac and potentially on Unix & Windows.
647: thanks to Dan Allen.
648:
649: added a few (int) casts to silence useless compiler warnings.
650: e.g., errorflag= in run.c jump().
651:
652: added proctab.c to the bundle outout; one less thing
653: to have to compile out of the box.
654:
655: added calls to _popen and _pclose to the win95 stub for
656: pipes (thanks to Steve Adams for this helpful suggestion).
657: seems to work, though properties are not well understood
658: by me, and it appears that under some circumstances the
659: pipe output is truncated. Be careful.
660:
661: Oct 19, 1998:
662: fixed a couple of bugs in getrec: could fail to update $0
1.25 millert 663: after a getline var; because inputFS wasn't initialized,
1.7 millert 664: could split $0 on every character, a misleading diversion.
665:
666: fixed caching bug in makedfa: LRU was actually removing
667: least often used.
668:
669: thanks to ross ridge for finding these, and for providing
670: great bug reports.
671:
672: May 12, 1998:
673: fixed potential bug in readrec: might fail to update record
674: pointer after growing. thanks to dan levy for spotting this
675: and suggesting the fix.
676:
677: Mar 12, 1998:
678: added -V to print version number and die.
1.19 millert 679:
680: [notify dave kerns, dkerns@dacsoup.ih.lucent.com]
1.7 millert 681:
682: Feb 11, 1998:
683: subtle silent bug in lex.c: if the program ended with a number
684: longer than 1 digit, part of the input would be pushed back and
685: parsed again because token buffer wasn't terminated right.
686: example: awk 'length($0) > 10'. blush. at least i found it
687: myself.
688:
689: Aug 31, 1997:
690: s/adelete/awkdelete/: SGI uses this in malloc.h.
691: thanks to nelson beebe for pointing this one out.
692:
693: Aug 21, 1997:
694: fixed some bugs in sub and gsub when replacement includes \\.
695: this is a dark, horrible corner, but at least now i believe that
696: the behavior is the same as gawk and the intended posix standard.
697: thanks to arnold robbins for advice here.
698:
699: Aug 9, 1997:
700: somewhat regretfully, replaced the ancient lex-based lexical
701: analyzer with one written in C. it's longer, generates less code,
702: and more portable; the old one depended too much on mysterious
703: properties of lex that were not preserved in other environments.
704: in theory these recognize the same language.
705:
706: now using strtod to test whether a string is a number, instead of
707: the convoluted original function. should be more portable and
708: reliable if strtod is implemented right.
709:
710: removed now-pointless optimization in makefile that tries to avoid
711: recompilation when awkgram.y is changed but symbols are not.
712:
713: removed most fixed-size arrays, though a handful remain, some
714: of which are unchecked. you have been warned.
715:
716: Aug 4, 1997:
717: with some trepidation, replaced the ancient code that managed
718: fields and $0 in fixed-size arrays with arrays that grow on
719: demand. there is still some tension between trying to make this
720: run fast and making it clean; not sure it's right yet.
721:
722: the ill-conceived -mr and -mf arguments are now useful only
723: for debugging. previous dynamic string code removed.
724:
725: numerous other minor cleanups along the way.
1.1 tholo 726:
1.7 millert 727: Jul 30, 1997:
728: using code provided by dan levy (to whom profuse thanks), replaced
729: fixed-size arrays and awkward kludges by a fairly uniform mechanism
730: to grow arrays as needed for printf, sub, gsub, etc.
1.1 tholo 731:
1.7 millert 732: Jul 23, 1997:
733: falling off the end of a function returns "" and 0, not 0.
734: thanks to arnold robbins.
1.1 tholo 735:
1.7 millert 736: Jun 17, 1997:
737: replaced several fixed-size arrays by dynamically-created ones
738: in run.c; added overflow tests to some previously unchecked cases.
739: getline, toupper, tolower.
1.1 tholo 740:
1.7 millert 741: getline code is still broken in that recursive calls may wind
742: up using the same space. [fixed later]
1.1 tholo 743:
1.7 millert 744: increased RECSIZE to 8192 to push problems further over the horizon.
1.1 tholo 745:
1.7 millert 746: added \r to \n as input line separator for programs, not data.
747: damn CRLFs.
1.1 tholo 748:
1.7 millert 749: modified format() to permit explicit printf("%c", 0) to include
750: a null byte in output. thanks to ken stailey for the fix.
1.1 tholo 751:
1.7 millert 752: added a "-safe" argument that disables file output (print >,
753: print >>), process creation (cmd|getline, print |, system), and
754: access to the environment (ENVIRON). this is a first approximation
755: to a "safe" version of awk, but don't rely on it too much. thanks
756: to joan feigenbaum and matt blaze for the inspiration long ago.
1.1 tholo 757:
1.7 millert 758: Jul 8, 1996:
759: fixed long-standing bug in sub, gsub(/a/, "\\\\&"); thanks to
760: ralph corderoy.
1.1 tholo 761:
1.7 millert 762: Jun 29, 1996:
763: fixed awful bug in new field splitting; didn't get all the places
764: where input was done.
1.1 tholo 765:
1.7 millert 766: Jun 28, 1996:
767: changed field-splitting to conform to posix definition: fields are
768: split using the value of FS at the time of input; it used to be
769: the value when the field or NF was first referred to, a much less
770: predictable definition. thanks to arnold robbins for encouragement
771: to do the right thing.
1.1 tholo 772:
1.7 millert 773: May 28, 1996:
774: fixed appalling but apparently unimportant bug in parsing octal
775: numbers in reg exprs.
1.1 tholo 776:
1.7 millert 777: explicit hex in reg exprs now limited to 2 chars: \xa, \xaa.
1.1 tholo 778:
1.7 millert 779: May 27, 1996:
780: cleaned up some declarations so gcc -Wall is now almost silent.
1.1 tholo 781:
1.7 millert 782: makefile now includes backup copies of ytab.c and lexyy.c in case
783: one makes before looking; it also avoids recreating lexyy.c unless
784: really needed.
1.1 tholo 785:
1.7 millert 786: s/aprintf/awkprint, s/asprintf/awksprintf/ to avoid some name clashes
787: with unwisely-written header files.
1.1 tholo 788:
1.7 millert 789: thanks to jeffrey friedl for several of these.
1.1 tholo 790:
1.7 millert 791: May 26, 1996:
792: an attempt to rationalize the (unsigned) char issue. almost all
793: instances of unsigned char have been removed; the handful of places
794: in b.c where chars are used as table indices have been hand-crafted.
795: added some latin-1 tests to the regression, but i'm not confident;
796: none of my compilers seem to care much. thanks to nelson beebe for
797: pointing out some others that do care.
1.1 tholo 798:
1.7 millert 799: May 2, 1996:
800: removed all register declarations.
1.1 tholo 801:
1.7 millert 802: enhanced split(), as in gawk, etc: split(s, a, "") splits s into
803: a[1]...a[length(s)] with each character a single element.
1.1 tholo 804:
1.7 millert 805: made the same changes for field-splitting if FS is "".
1.1 tholo 806:
1.7 millert 807: added nextfile, as in gawk: causes immediate advance to next
808: input file. (thanks to arnold robbins for inspiration and code).
1.1 tholo 809:
1.7 millert 810: small fixes to regexpr code: can now handle []], [[], and
1.25 millert 811: variants; [] is now a syntax error, rather than matching
1.7 millert 812: everything; [z-a] is now empty, not z. far from complete
813: or correct, however. (thanks to jeffrey friedl for pointing out
814: some awful behaviors.)
1.1 tholo 815:
1.7 millert 816: Apr 29, 1996:
1.12 otto 817: replaced uchar by uschar everywhere; apparently some compilers
1.7 millert 818: usurp this name and this causes conflicts.
1.1 tholo 819:
1.7 millert 820: fixed call to time in run.c (bltin); arg is time_t *.
1.1 tholo 821:
1.7 millert 822: replaced horrible pointer/long punning in b.c by a legitimate
823: union. should be safer on 64-bit machines and cleaner everywhere.
824: (thanks to nelson beebe for pointing out some of these problems.)
1.1 tholo 825:
1.7 millert 826: replaced nested comments by #if 0...#endif in run.c, lib.c.
1.1 tholo 827:
1.7 millert 828: removed getsval, setsval, execute macros from run.c and lib.c.
829: machines are 100x faster than they were when these macros were
830: first used.
1.1 tholo 831:
1.7 millert 832: revised filenames: awk.g.y => awkgram.y, awk.lx.l => awklex.l,
833: y.tab.[ch] => ytab.[ch], lex.yy.c => lexyy.c, all in the aid of
834: portability to nameless systems.
1.1 tholo 835:
1.7 millert 836: "make bundle" now includes yacc and lex output files for recipients
837: who don't have yacc or lex.
1.1 tholo 838:
1.7 millert 839: Aug 15, 1995:
840: initialized Cells in setsymtab more carefully; some fields
841: were not set. (thanks to purify, all of whose complaints i
842: think i now understand.)
1.1 tholo 843:
1.7 millert 844: fixed at least one error in gsub that looked at -1-th element
845: of an array when substituting for a null match (e.g., $).
1.1 tholo 846:
1.7 millert 847: delete arrayname is now legal; it clears the elements but leaves
848: the array, which may not be the right behavior.
1.1 tholo 849:
1.7 millert 850: modified makefile: my current make can't cope with the test used
851: to avoid unnecessary yacc invocations.
1.1 tholo 852:
1.7 millert 853: Jul 17, 1995:
854: added dynamically growing strings to awk.lx.l and b.c
855: to permit regular expressions to be much bigger.
856: the state arrays can still overflow.
1.1 tholo 857:
1.7 millert 858: Aug 24, 1994:
859: detect duplicate arguments in function definitions (mdm).
1.1 tholo 860:
1.7 millert 861: May 11, 1994:
862: trivial fix to printf to limit string size in sub().
1.1 tholo 863:
1.7 millert 864: Apr 22, 1994:
865: fixed yet another subtle self-assignment problem:
866: $1 = $2; $1 = $1 clobbered $1.
1.1 tholo 867:
1.7 millert 868: Regression tests now use private echo, to avoid quoting problems.
1.1 tholo 869:
1.7 millert 870: Feb 2, 1994:
871: changed error() to print line number as %d, not %g.
1.1 tholo 872:
1.7 millert 873: Jul 23, 1993:
874: cosmetic changes: increased sizes of some arrays,
875: reworded some error messages.
1.1 tholo 876:
1.7 millert 877: added CONVFMT as in posix (just replaced OFMT in getsval)
1.1 tholo 878:
1.7 millert 879: FILENAME is now "" until the first thing that causes a file
880: to be opened.
1.1 tholo 881:
1.7 millert 882: Nov 28, 1992:
883: deleted yyunput and yyoutput from proto.h;
884: different versions of lex give these different declarations.
1.1 tholo 885:
1.7 millert 886: May 31, 1992:
887: added -mr N and -mf N options: more record and fields.
888: these really ought to adjust automatically.
1.1 tholo 889:
1.7 millert 890: cleaned up some error messages; "out of space" now means
891: malloc returned NULL in all cases.
1.1 tholo 892:
1.7 millert 893: changed rehash so that if it runs out, it just returns;
894: things will continue to run slow, but maybe a bit longer.
1.1 tholo 895:
1.7 millert 896: Apr 24, 1992:
897: remove redundant close of stdin when using -f -.
1.1 tholo 898:
1.7 millert 899: got rid of core dump with -d; awk -d just prints date.
1.1 tholo 900:
1.7 millert 901: Apr 12, 1992:
902: added explicit check for /dev/std(in,out,err) in redirection.
903: unlike gawk, no /dev/fd/n yet.
1.1 tholo 904:
1.7 millert 905: added (file/pipe) builtin. hard to test satisfactorily.
906: not posix.
1.1 tholo 907:
1.7 millert 908: Feb 20, 1992:
909: recompile after abortive changes; should be unchanged.
1.1 tholo 910:
1.7 millert 911: Dec 2, 1991:
912: die-casting time: converted to ansi C, installed that.
1.1 tholo 913:
1.7 millert 914: Nov 30, 1991:
915: fixed storage leak in freefa, failing to recover [N]CCL.
916: thanks to Bill Jones (jones@cs.usask.ca)
1.1 tholo 917:
1.7 millert 918: Nov 19, 1991:
919: use RAND_MAX instead of literal in builtin().
1.1 tholo 920:
1.7 millert 921: Nov 12, 1991:
922: cranked up some fixed-size arrays in b.c, and added a test for
923: overflow in penter. thanks to mark larsen.
1.1 tholo 924:
1.7 millert 925: Sep 24, 1991:
926: increased buffer in gsub. a very crude fix to a general problem.
927: and again on Sep 26.
1.1 tholo 928:
1.7 millert 929: Aug 18, 1991:
930: enforce variable name syntax for commandline variables: has to
931: start with letter or _.
1.1 tholo 932:
1.7 millert 933: Jul 27, 1991:
934: allow newline after ; in for statements.
1.1 tholo 935:
1.7 millert 936: Jul 21, 1991:
937: fixed so that in self-assignment like $1=$1, side effects
938: like recomputing $0 take place. (this is getting subtle.)
1.1 tholo 939:
1.7 millert 940: Jun 30, 1991:
941: better test for detecting too-long output record.
1.1 tholo 942:
1.7 millert 943: Jun 2, 1991:
944: better defense against very long printf strings.
945: made break and continue illegal outside of loops.
1.1 tholo 946:
1.7 millert 947: May 13, 1991:
948: removed extra arg on gettemp, tempfree. minor error message rewording.
1.1 tholo 949:
950: May 6, 1991:
951: fixed silly bug in hex parsing in hexstr().
952: removed an apparently unnecessary test in isnumber().
953: warn about weird printf conversions.
954: fixed unchecked array overwrite in relex().
955:
956: changed for (i in array) to access elements in sorted order.
957: then unchanged it -- it really does run slower in too many cases.
958: left the code in place, commented out.
959:
1.7 millert 960: Feb 10, 1991:
961: check error status on all writes, to avoid banging on full disks.
1.1 tholo 962:
1.7 millert 963: Jan 28, 1991:
964: awk -f - reads the program from stdin.
1.1 tholo 965:
1.7 millert 966: Jan 11, 1991:
967: failed to set numeric state on $0 in cmd|getline context in run.c.
1.1 tholo 968:
1.7 millert 969: Nov 2, 1990:
970: fixed sleazy test for integrality in getsval; use modf.
1.1 tholo 971:
1.7 millert 972: Oct 29, 1990:
973: fixed sleazy buggy code in lib.c that looked (incorrectly) for
974: too long input lines.
1.1 tholo 975:
1.7 millert 976: Oct 14, 1990:
977: fixed the bug on p. 198 in which it couldn't deduce that an
978: argument was an array in some contexts. replaced the error
979: message in intest() by code that damn well makes it an array.
1.1 tholo 980:
1.7 millert 981: Oct 8, 1990:
982: fixed horrible bug: types and values were not preserved in
983: some kinds of self-assignment. (in assign().)
1.1 tholo 984:
1.7 millert 985: Aug 24, 1990:
986: changed NCHARS to 256 to handle 8-bit characters in strings
987: presented to match(), etc.
1.1 tholo 988:
1.7 millert 989: Jun 26, 1990:
990: changed struct rrow (awk.h) to use long instead of int for lval,
991: since cfoll() stores a pointer in it. now works better when int's
992: are smaller than pointers!
1.1 tholo 993:
1.7 millert 994: May 6, 1990:
995: AVA fixed the grammar so that ! is uniformly of the same precedence as
996: unary + and -. This renders illegal some constructs like !x=y, which
997: now has to be parenthesized as !(x=y), and makes others work properly:
998: !x+y is (!x)+y, and x!y is x !y, not two pattern-action statements.
999: (These problems were pointed out by Bob Lenk of Posix.)
1.1 tholo 1000:
1.7 millert 1001: Added \x to regular expressions (already in strings).
1002: Limited octal to octal digits; \8 and \9 are not octal.
1003: Centralized the code for parsing escapes in regular expressions.
1004: Added a bunch of tests to T.re and T.sub to verify some of this.
1.1 tholo 1005:
1.7 millert 1006: Feb 9, 1990:
1007: fixed null pointer dereference bug in main.c: -F[nothing]. sigh.
1.1 tholo 1008:
1.7 millert 1009: restored srand behavior: it returns the current seed.
1.1 tholo 1010:
1.7 millert 1011: Jan 18, 1990:
1012: srand now returns previous seed value (0 to start).
1.1 tholo 1013:
1.7 millert 1014: Jan 5, 1990:
1015: fix potential problem in tran.c -- something was freed,
1016: then used in freesymtab.
1.1 tholo 1017:
1.7 millert 1018: Oct 18, 1989:
1019: another try to get the max number of open files set with
1020: relatively machine-independent code.
1.1 tholo 1021:
1.7 millert 1022: small fix to input() in case of multiple reads after EOF.
1.1 tholo 1023:
1.7 millert 1024: Oct 11, 1989:
1025: FILENAME is now defined in the BEGIN block -- too many old
1026: programs broke.
1.1 tholo 1027:
1.7 millert 1028: "-" means stdin in getline as well as on the commandline.
1.1 tholo 1029:
1.7 millert 1030: added a bunch of casts to the code to tell the truth about
1031: char * vs. unsigned char *, a right royal pain. added a
1032: setlocale call to the front of main, though probably no one
1033: has it usefully implemented yet.
1.1 tholo 1034:
1.7 millert 1035: Aug 24, 1989:
1036: removed redundant relational tests against nullnode if parse
1037: tree already had a relational at that point.
1.1 tholo 1038:
1.7 millert 1039: Aug 11, 1989:
1040: fixed bug: commandline variable assignment has to look like
1041: var=something. (consider the man page for =, in file =.1)
1.1 tholo 1042:
1.7 millert 1043: changed number of arguments to functions to static arrays
1044: to avoid repeated malloc calls.
1.1 tholo 1045:
1.7 millert 1046: Aug 2, 1989:
1047: restored -F (space) separator
1.1 tholo 1048:
1.7 millert 1049: Jul 30, 1989:
1050: added -v x=1 y=2 ... for immediate commandline variable assignment;
1051: done before the BEGIN block for sure. they have to precede the
1052: program if the program is on the commandline.
1053: Modified Aug 2 to require a separate -v for each assignment.
1.1 tholo 1054:
1.7 millert 1055: Jul 10, 1989:
1056: fixed ref-thru-zero bug in environment code in tran.c
1.1 tholo 1057:
1.7 millert 1058: Jun 23, 1989:
1059: add newline to usage message.
1.1 tholo 1060:
1.7 millert 1061: Jun 14, 1989:
1062: added some missing ansi printf conversion letters: %i %X %E %G.
1063: no sensible meaning for h or L, so they may not do what one expects.
1.1 tholo 1064:
1.7 millert 1065: made %* conversions work.
1.1 tholo 1066:
1.7 millert 1067: changed x^y so that if n is a positive integer, it's done
1068: by explicit multiplication, thus achieving maximum accuracy.
1069: (this should be done by pow() but it seems not to be locally.)
1070: done to x ^= y as well.
1.1 tholo 1071:
1.7 millert 1072: Jun 4, 1989:
1073: ENVIRON array contains environment: if shell variable V=thing,
1074: ENVIRON["V"] is "thing"
1.1 tholo 1075:
1.7 millert 1076: multiple -f arguments permitted. error reporting is naive.
1077: (they were permitted before, but only the last was used.)
1.1 tholo 1078:
1.7 millert 1079: fixed a really stupid botch in the debugging macro dprintf
1.1 tholo 1080:
1.7 millert 1081: fixed order of evaluation of commandline assignments to match
1082: what the book claims: an argument of the form x=e is evaluated
1083: at the time it would have been opened if it were a filename (p 63).
1084: this invalidates the suggested answer to ex 4-1 (p 195).
1.1 tholo 1085:
1.7 millert 1086: removed some code that permitted -F (space) fieldseparator,
1087: since it didn't quite work right anyway. (restored aug 2)
1.1 tholo 1088:
1.7 millert 1089: Apr 27, 1989:
1090: Line number now accumulated correctly for comment lines.
1.1 tholo 1091:
1.7 millert 1092: Apr 26, 1989:
1093: Debugging output now includes a version date,
1094: if one compiles it into the source each time.
1.1 tholo 1095:
1.7 millert 1096: Apr 9, 1989:
1097: Changed grammar to prohibit constants as 3rd arg of sub and gsub;
1098: prevents class of overwriting-a-constant errors. (Last one?)
1099: This invalidates the "banana" example on page 43 of the book.
1.1 tholo 1100:
1.7 millert 1101: Added \a ("alert"), \v (vertical tab), \xhhh (hexadecimal),
1102: as in ANSI, for strings. Rescinded the sloppiness that permitted
1103: non-octal digits in \ooo. Warning: not all compilers and libraries
1104: will be able to deal with \x correctly.
1.1 tholo 1105:
1.7 millert 1106: Jan 9, 1989:
1107: Fixed bug that caused tempcell list to contain a duplicate.
1108: The fix is kludgy.
1.1 tholo 1109:
1.7 millert 1110: Dec 17, 1988:
1111: Catches some more commandline errors in main.
1112: Removed redundant decl of modf in run.c (confuses some compilers).
1113: Warning: there's no single declaration of malloc, etc., in awk.h
1114: that seems to satisfy all compilers.
1.1 tholo 1115:
1.7 millert 1116: Dec 7, 1988:
1117: Added a bit of code to error printing to avoid printing nulls.
1118: (Not clear that it actually would.)
1.1 tholo 1119:
1.7 millert 1120: Nov 27, 1988:
1121: With fear and trembling, modified the grammar to permit
1122: multiple pattern-action statements on one line without
1123: an explicit separator. By definition, this capitulation
1124: to the ghost of ancient implementations remains undefined
1125: and thus subject to change without notice or apology.
1126: DO NOT COUNT ON IT.
1.1 tholo 1127:
1.7 millert 1128: Oct 30, 1988:
1129: Fixed bug in call() that failed to recover storage.
1.1 tholo 1130:
1.7 millert 1131: A warning is now generated if there are more arguments
1132: in the call than in the definition (in lieu of fixing
1133: another storage leak).
1.2 millert 1134:
1.7 millert 1135: Oct 20, 1988:
1136: Fixed %c: if expr is numeric, use numeric value;
1137: otherwise print 1st char of string value. still
1138: doesn't work if the value is 0 -- won't print \0.
1.2 millert 1139:
1.7 millert 1140: Added a few more checks for running out of malloc.
1.2 millert 1141:
1.7 millert 1142: Oct 12, 1988:
1143: Fixed bug in call() that freed local arrays twice.
1.5 kstailey 1144:
1.7 millert 1145: Fixed to handle deletion of non-existent array right;
1146: complains about attempt to delete non-array element.
1.6 kstailey 1147:
1.7 millert 1148: Sep 30, 1988:
1149: Now guarantees to evaluate all arguments of built-in
1150: functions, as in C; the appearance is that arguments
1151: are evaluated before the function is called. Places
1152: affected are sub (gsub was ok), substr, printf, and
1153: all the built-in arithmetic functions in bltin().
1154: A warning is generated if a bltin() is called with
1155: the wrong number of arguments.
1.6 kstailey 1156:
1.7 millert 1157: This requires changing makeprof on p167 of the book.
1.6 kstailey 1158:
1.7 millert 1159: Aug 23, 1988:
1160: setting FILENAME in BEGIN caused core dump, apparently
1161: because it was freeing space not allocated by malloc.
1.6 kstailey 1162:
1.7 millert 1163: July 24, 1988:
1164: fixed egregious error in toupper/tolower functions.
1165: still subject to rescinding, however.
1.6 kstailey 1166:
1.7 millert 1167: July 2, 1988:
1168: flush stdout before opening file or pipe
1.6 kstailey 1169:
1.7 millert 1170: July 2, 1988:
1171: performance bug in b.c/cgoto(): not freeing some sets of states.
1172: partial fix only right now, and the number of states increased
1173: to make it less obvious.
1.6 kstailey 1174:
1.7 millert 1175: June 1, 1988:
1176: check error status on close
1.6 kstailey 1177:
1.7 millert 1178: May 28, 1988:
1179: srand returns seed value it's using.
1180: see 1/18/90
1.6 kstailey 1181:
1.7 millert 1182: May 22, 1988:
1183: Removed limit on depth of function calls.
1.6 kstailey 1184:
1.7 millert 1185: May 10, 1988:
1186: Fixed lib.c to permit _ in commandline variable names.
1.6 kstailey 1187:
1.7 millert 1188: Mar 25, 1988:
1189: main.c fixed to recognize -- as terminator of command-
1190: line options. Illegal options flagged.
1191: Error reporting slightly cleaned up.
1.6 kstailey 1192:
1.7 millert 1193: Dec 2, 1987:
1194: Newer C compilers apply a strict scope rule to extern
1195: declarations within functions. Two extern declarations in
1196: lib.c and tran.c have been moved to obviate this problem.
1.6 kstailey 1197:
1.7 millert 1198: Oct xx, 1987:
1199: Reluctantly added toupper and tolower functions.
1200: Subject to rescinding without notice.
1.6 kstailey 1201:
1.7 millert 1202: Sep 17, 1987:
1203: Error-message printer had printf(s) instead of
1204: printf("%s",s); got core dumps when the message
1205: included a %.
1.6 kstailey 1206:
1.7 millert 1207: Sep 12, 1987:
1208: Very long printf strings caused core dump;
1209: fixed aprintf, asprintf, format to catch them.
1210: Can still get a core dump in printf itself.
1.6 kstailey 1211:
1212:
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