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* Fix the style of the SCM ID's.obrien2002-03-226-1/+5
| | | | I believe have made all of libc .h's as consistent as possible.
* Fix the style of the SCM ID's.obrien2002-03-226-12/+16
| | | | I believe have made all of libc .c's as consistent as possible.
* Back out last commit (rev 1.2). I thought I caught this file in timeobrien2002-03-221-1/+1
| | | | when deP'ing. But I guess not.
* Remove __P() usage.obrien2002-03-214-54/+54
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* Remove 'register' keyword.obrien2002-03-218-330/+334
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* Fix a typo I made in revision 1.5.ru2002-01-221-1/+1
| | | | Submitted by: trevor
* The algorithm that computes the tables used in the BM search algorithm sometimesdcs2001-11-091-1/+2
| | | | | | | | | | access an array beyond it's length. This only happens in the last iteration of a loop, and the value fetched is not used then, so the bug is a relatively innocent one. Fix this by not fetching any value on the last iteration of said loop. Submitted by: MKI <mki@mozone.net> MFC after: 1 week
* mdoc(7) police: Use the new .In macro for #include statements.ru2001-10-011-2/+2
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* mdoc(7) police: protect trailing full stops of abbreviationsru2001-08-101-1/+1
| | | | with a trailing zero-width space: `e.g.\&'.
* mdoc(7) police:ru2001-08-071-4/+2
| | | | | | | Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text. Not only this slows down the mdoc(7) processing significantly, but it also has an undesired (in this case) effect of disabling hyphenation within the entire enclosed block.
* Remove whitespace at EOL.dd2001-07-151-2/+2
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* MAN[1-9] -> MAN.ru2001-03-271-2/+2
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* mdoc(7) police: fixed the weird construct.ru2001-02-091-3/+1
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* man(7) -> mdoc(7).ru2001-01-121-266/+433
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* Prepare for mdoc(7)NG.ru2000-12-291-13/+13
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* Replace a `dagger' sign with a `double dagger' one.ru2000-11-161-15/+15
| | | | The former looks ugly on grotty(1) devices.
* Convert this from -man to -mdoc.ru2000-11-141-140/+345
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* Actually make it so this Makefile can build grot.green2000-07-101-1/+8
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* Add a test case for one of the bugs found on the new additions todcs2000-07-091-0/+1
| | | | regex(3).
* Spencer's regex(3) test code.dcs2000-07-098-0/+1727
| | | | Obtained from: BSD/OS
* altoffset() always returned whenever it recursed, because at the enddcs2000-07-091-0/+4
| | | | | | | | | | | | | | of the processing of the recursion, "scan" would be pointing to O_CH (or O_QUEST), which would then be interpreted as being the end character for altoffset(). We avoid this by properly increasing scan before leaving the switch. Without this, something like (a?b?)?cc would result in a g->moffset of 1 instead of 2. I added a case to the soon-to-be-imported regex(3) test code to catch this error.
* Since g->moffset points to the _maximum_ offset at which the mustdcs2000-07-091-1/+1
| | | | | | | | | | | | | string may be found (from the beginning of the pattern), the point at which must is found minus that offset may actually point to some place before the start of the text. In that case, make start = start. Alternatively, this could be tested for in the preceding if, but it did not occur to me. :-) Caught by: regex(3) test code
* Add some casts here and there.dcs2000-07-091-3/+3
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* Since we have modified charjump to be CHAR_MIN-based, we have todcs2000-07-081-1/+2
| | | | | | correct the offset when we free it. Caught by: phkmalloc
* Do not free NULL pointers.dcs2000-07-071-1/+1
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* Deal with the signed/unsigned chars issue in a more proper manner. Wedcs2000-07-072-21/+17
| | | | | | | | | use a CHAR_MIN-based array, like elsewhere in the code. Remove a number of unused variables (some due to the above change, one that was left after a number of optimizing steps through the source). Brucified by: bde
* I hate signed chars.^W^W^W^W^WCast to unsigned char before using signeddcs2000-07-061-1/+1
| | | | chars as array indices.
* Correct comment to work with test code.dcs2000-07-061-2/+2
| | | | Prevent out of bounds array access in some specific cases.
* Use UCHAR_MAX consistently.dcs2000-07-061-1/+1
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* Fix memory leak introduced with regcomp.c rev 1.14.dcs2000-07-021-0/+6
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* Enhance the optimization provided by pre-matching. Fix style bugs withdcs2000-07-023-12/+177
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | previous commits. At the time we search the pattern for the "must" string, we now compute the longest offset from the beginning of the pattern at which the must string might be found. If that offset is found to be infinite (through use of "+" or "*"), we set it to -1 to disable the heuristics applied later. After we are done with pre-matching, we use that offset and the point in the text at which the must string was found to compute the earliest point at which the pattern might be found. Special care should be taken here. The variable "start" is passed to the automata-processing functions fast() and slow() to indicate the point in the text at which they should start working from. The real beginning of the text is passed in a struct match variable m, which is used to check for anchors. That variable, though, is initialized with "start", so we must not adjust "start" before "m" is properly initialized. Simple tests showed a speed increase from 100% to 400%, but they were biased in that regexec() was called for the whole file instead of line by line, and parenthized subexpressions were not searched for. This change adds a single integer to the size of the "guts" structure, and does not change the ABI. Further improvements possible: Since the speed increase observed here is so huge, one intuitive optimization would be to introduce a bias in the function that computes the "must" string so as to prefer a smaller string with a finite offset over a larger one with an infinite offset. Tests have shown this to be a bad idea, though, as the cost of false pre-matches far outweights the benefits of a must offset, even in biased situations. A number of other improvements suggest themselves, though: * identify the cases where the pattern is identical to the must string, and avoid entering fast() and slow() in these cases. * compute the maximum offset from the must string to the end of the pattern, and use that to set the point at which fast() and slow() should give up trying to find a match, and return then return to pre-matching. * return all the way to pre-matching if a "match" was found and later invalidated by back reference processing. Since back references are evil and should be avoided anyway, this is of little use.
* Remove from the notes a bug that it's said to have been fixed.dcs2000-07-021-5/+0
| | | | | | PR: 15561 Submitted by: Martin Kammerhofer <mkamm@gmx.net> Confirmed by: ache
* Initialize variables used by the Boyer-Moore algorithm.dcs2000-06-291-0/+2
| | | | | | | This should fix core dumps when the must pattern is of length three or less. Bug found by: knu
* Add Boyler-Moore algorithm to pre-matching test.dcs2000-06-293-6/+202
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The BM algorithm works by scanning the pattern from right to left, and jumping as many characters as viable based on the text's mismatched character and the pattern's already matched suffix. This typically enable us to test only a fraction of the text's characters, but has a worse performance than the straight-forward method for small patterns. Because of this, the BM algorithm will only be used if the pattern size is at least 4 characters. Notice that this pre-matching is done on the largest substring of the regular expression that _must_ be present on the text for a succesful match to be possible at all. For instance, "(xyzzy|grues)" will yield a null "must" substring, and, therefore, not benefit from the BM algorithm at all. Because of the lack of intelligence of the algorithm that finds the "must" string, things like "charjump|matchjump" will also yield a null string. To optimize that, "(char|match)jump" should be used. The setup time (at regcomp()) for the BM algorithm will most likely outweight any benefits for one-time matches. Given the slow regex(3) we have, this is unlikely to be even perceptible, though. The size of a regex_t structure is increased by 2*sizeof(char*) + 256*sizeof(int) + strlen(must)*sizeof(int). This is all inside the regex_t's "guts", which is allocated dynamically by regcomp(). If allocation of either of the two tables fail, the other one is freed. In this case, the straight-forward algorithm is used for pre-matching. Tests exercising the code path affected have shown a speed increase of 50% for "must" strings of length four or five. API and ABI remain unchanged by this commit. The patch submitted on the PR was not used, as it was non-functional. PR: 14342
* $Id$ -> $FreeBSD$peter1999-08-283-3/+3
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* remove <ctype.h> - not neededache1999-07-261-1/+0
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* unsigned char cleanupache1999-07-261-17/+17
| | | | | | | fix wrong index from p_simp_re() PR: 8790 Submitted by: Alexander Viro <viro@math.psu.edu> (partially)
* Add $Id$, to make it simpler for members of the translation teams tonik1999-07-122-0/+2
| | | | | | | | | | | | | | | | | track. The $Id$ line is normally at the bottom of the main comment block in the man page, separated from the rest of the manpage by an empty comment, like so; .\" $Id$ .\" If the immediately preceding comment is a @(#) format ID marker than the the $Id$ will line up underneath it with no intervening blank lines. Otherwise, an additional blank line is inserted. Approved by: bde
* Replace memory leaking instances of realloc with non-leaking reallocf.imp1998-09-161-4/+4
| | | | | | | | | | | In some cases replace if (a == null) a = malloc(x); else a = realloc(a, x); with simple reallocf(a, x). Per ANSI-C, this is guaranteed to be the same thing. I've been running these on my system here w/o ill effects for some time. However, the CTM-express is at part 6 of 34 for the CAM changes, so I've not been able to do a build world with the CAM in the tree with these changes. Shouldn't impact anything, but...
* int -> long changes that reduce the diffs with the NetBSD version tojb1998-05-142-34/+34
| | | | work in a 64-bit environment.
* Note that '+' and '?' are not special characters in basic REs but theysteve1998-02-141-2/+5
| | | | | | | can be simulated using bounds. PR: 5708 Submitted by: Oliver Fromme <oliver.fromme@heim3.tu-clausthal.de>
* Removed the subdirectory paths from the definitions of MAN[1-9]. Theybde1997-10-151-4/+3
| | | | | were a workaround for limitations in bsd.man.mk that were fixed about 2 years ago.
* Changed all paths to be relative to src/lib instead of src/lib/libcjb1997-05-031-2/+6
| | | | | | | | | | so that all these makefiles can be used to build libc_r too. Added .if ${LIB} == "c" tests to restrict man page builds to libc to avoid needlessly building them with libc_r too. Split libc Makefile into Makefile and Makefile.inc to allow the libc_r Makefile to include Makefile.inc too.
* Speedup in case locale not usedache1997-04-041-5/+11
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* collate_range_cmp -> __collate_range_cmpache1996-10-311-4/+5
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* Correctly use .Fn instead of .Nm to reference function namesmpp1996-08-221-1/+3
| | | | | | | | in a bunch of man pages. Use the correct .Bx (BSD UNIX) or .At (AT&T UNIX) macros instead of explicitly specifying the version in the text in a bunch of man pages.
* Convert to newly aded collate compare functionache1996-08-121-4/+4
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* Remove static collcmp, use new internal function nowache1996-08-121-37/+4
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* Use collate data for national alpha character ranges like [a-z]ache1996-08-111-4/+45
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* Short value is better for hash due to easy overflow in 8bit charactersache1996-08-111-1/+1
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