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