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1 README file for PCRE (Perl-compatible regular expression library)
2 -----------------------------------------------------------------
4 The latest release of PCRE is always available from
6 ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz
8 There is a mailing list for discussion about the development of PCRE at
10 pcre-dev@exim.org
12 Please read the NEWS file if you are upgrading from a previous release.
13 The contents of this README file are:
15 The PCRE APIs
16 Documentation for PCRE
17 Contributions by users of PCRE
18 Building PCRE on non-Unix systems
19 Building PCRE on Unix-like systems
20 Retrieving configuration information on Unix-like systems
21 Shared libraries on Unix-like systems
22 Cross-compiling on Unix-like systems
23 Using HP's ANSI C++ compiler (aCC)
24 Making new tarballs
25 Testing PCRE
26 Character tables
27 File manifest
30 The PCRE APIs
31 -------------
33 PCRE is written in C, and it has its own API. The distribution also includes a
34 set of C++ wrapper functions (see the pcrecpp man page for details), courtesy
35 of Google Inc.
37 In addition, there is a set of C wrapper functions that are based on the POSIX
38 regular expression API (see the pcreposix man page). These end up in the
39 library called libpcreposix. Note that this just provides a POSIX calling
40 interface to PCRE; the regular expressions themselves still follow Perl syntax
41 and semantics. The POSIX API is restricted, and does not give full access to
42 all of PCRE's facilities.
44 The header file for the POSIX-style functions is called pcreposix.h. The
45 official POSIX name is regex.h, but I did not want to risk possible problems
46 with existing files of that name by distributing it that way. To use PCRE with
47 an existing program that uses the POSIX API, pcreposix.h will have to be
48 renamed or pointed at by a link.
50 If you are using the POSIX interface to PCRE and there is already a POSIX regex
51 library installed on your system, as well as worrying about the regex.h header
52 file (as mentioned above), you must also take care when linking programs to
53 ensure that they link with PCRE's libpcreposix library. Otherwise they may pick
54 up the POSIX functions of the same name from the other library.
56 One way of avoiding this confusion is to compile PCRE with the addition of
57 -Dregcomp=PCREregcomp (and similarly for the other POSIX functions) to the
58 compiler flags (CFLAGS if you are using "configure" -- see below). This has the
59 effect of renaming the functions so that the names no longer clash. Of course,
60 you have to do the same thing for your applications, or write them using the
61 new names.
64 Documentation for PCRE
65 ----------------------
67 If you install PCRE in the normal way on a Unix-like system, you will end up
68 with a set of man pages whose names all start with "pcre". The one that is just
69 called "pcre" lists all the others. In addition to these man pages, the PCRE
70 documentation is supplied in two other forms:
72 1. There are files called doc/pcre.txt, doc/pcregrep.txt, and
73 doc/pcretest.txt in the source distribution. The first of these is a
74 concatenation of the text forms of all the section 3 man pages except
75 those that summarize individual functions. The other two are the text
76 forms of the section 1 man pages for the pcregrep and pcretest commands.
77 These text forms are provided for ease of scanning with text editors or
78 similar tools. They are installed in <prefix>/share/doc/pcre, where
79 <prefix> is the installation prefix (defaulting to /usr/local).
81 2. A set of files containing all the documentation in HTML form, hyperlinked
82 in various ways, and rooted in a file called index.html, is distributed in
83 doc/html and installed in <prefix>/share/doc/pcre/html.
86 Contributions by users of PCRE
87 ------------------------------
89 You can find contributions from PCRE users in the directory
91 ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Contrib
93 There is a README file giving brief descriptions of what they are. Some are
94 complete in themselves; others are pointers to URLs containing relevant files.
95 Some of this material is likely to be well out-of-date. Several of the earlier
96 contributions provided support for compiling PCRE on various flavours of
97 Windows (I myself do not use Windows). Nowadays there is more Windows support
98 in the standard distribution, so these contibutions have been archived.
101 Building PCRE on non-Unix systems
102 ---------------------------------
104 For a non-Unix system, please read the comments in the file NON-UNIX-USE,
105 though if your system supports the use of "configure" and "make" you may be
106 able to build PCRE in the same way as for Unix-like systems. PCRE can also be
107 configured in many platform environments using the GUI facility of CMake's
108 CMakeSetup. It creates Makefiles, solution files, etc.
110 PCRE has been compiled on many different operating systems. It should be
111 straightforward to build PCRE on any system that has a Standard C compiler and
112 library, because it uses only Standard C functions.
115 Building PCRE on Unix-like systems
116 ----------------------------------
118 If you are using HP's ANSI C++ compiler (aCC), please see the special note
119 in the section entitled "Using HP's ANSI C++ compiler (aCC)" below.
121 The following instructions assume the use of the widely used "configure, make,
122 make install" process. There is also some experimental support for "cmake" in
123 the PCRE distribution, but it is incomplete and not documented. However, if you
124 are a "cmake" user, you might want to try it.
126 To build PCRE on a Unix-like system, first run the "configure" command from the
127 PCRE distribution directory, with your current directory set to the directory
128 where you want the files to be created. This command is a standard GNU
129 "autoconf" configuration script, for which generic instructions are supplied in
130 the file INSTALL.
132 Most commonly, people build PCRE within its own distribution directory, and in
133 this case, on many systems, just running "./configure" is sufficient. However,
134 the usual methods of changing standard defaults are available. For example:
136 CFLAGS='-O2 -Wall' ./configure --prefix=/opt/local
138 specifies that the C compiler should be run with the flags '-O2 -Wall' instead
139 of the default, and that "make install" should install PCRE under /opt/local
140 instead of the default /usr/local.
142 If you want to build in a different directory, just run "configure" with that
143 directory as current. For example, suppose you have unpacked the PCRE source
144 into /source/pcre/pcre-xxx, but you want to build it in /build/pcre/pcre-xxx:
146 cd /build/pcre/pcre-xxx
147 /source/pcre/pcre-xxx/configure
149 PCRE is written in C and is normally compiled as a C library. However, it is
150 possible to build it as a C++ library, though the provided building apparatus
151 does not have any features to support this.
153 There are some optional features that can be included or omitted from the PCRE
154 library. You can read more about them in the pcrebuild man page.
156 . If you want to suppress the building of the C++ wrapper library, you can add
157 --disable-cpp to the "configure" command. Otherwise, when "configure" is run,
158 it will try to find a C++ compiler and C++ header files, and if it succeeds,
159 it will try to build the C++ wrapper.
161 . If you want to make use of the support for UTF-8 character strings in PCRE,
162 you must add --enable-utf8 to the "configure" command. Without it, the code
163 for handling UTF-8 is not included in the library. (Even when included, it
164 still has to be enabled by an option at run time.)
166 . If, in addition to support for UTF-8 character strings, you want to include
167 support for the \P, \p, and \X sequences that recognize Unicode character
168 properties, you must add --enable-unicode-properties to the "configure"
169 command. This adds about 30K to the size of the library (in the form of a
170 property table); only the basic two-letter properties such as Lu are
171 supported.
173 . You can build PCRE to recognize either CR or LF or the sequence CRLF or any
174 of the preceding, or any of the Unicode newline sequences as indicating the
175 end of a line. Whatever you specify at build time is the default; the caller
176 of PCRE can change the selection at run time. The default newline indicator
177 is a single LF character (the Unix standard). You can specify the default
178 newline indicator by adding --enable-newline-is-cr or --enable-newline-is-lf
179 or --enable-newline-is-crlf or --enable-newline-is-anycrlf or
180 --enable-newline-is-any to the "configure" command, respectively.
182 If you specify --enable-newline-is-cr or --enable-newline-is-crlf, some of
183 the standard tests will fail, because the lines in the test files end with
184 LF. Even if the files are edited to change the line endings, there are likely
185 to be some failures. With --enable-newline-is-anycrlf or
186 --enable-newline-is-any, many tests should succeed, but there may be some
187 failures.
189 . By default, the sequence \R in a pattern matches any Unicode line ending
190 sequence. This is independent of the option specifying what PCRE considers to
191 be the end of a line (see above). However, the caller of PCRE can restrict \R
192 to match only CR, LF, or CRLF. You can make this the default by adding
193 --enable-bsr-anycrlf to the "configure" command (bsr = "backslash R").
195 . When called via the POSIX interface, PCRE uses malloc() to get additional
196 storage for processing capturing parentheses if there are more than 10 of
197 them in a pattern. You can increase this threshold by setting, for example,
199 --with-posix-malloc-threshold=20
201 on the "configure" command.
203 . PCRE has a counter that can be set to limit the amount of resources it uses.
204 If the limit is exceeded during a match, the match fails. The default is ten
205 million. You can change the default by setting, for example,
207 --with-match-limit=500000
209 on the "configure" command. This is just the default; individual calls to
210 pcre_exec() can supply their own value. There is more discussion on the
211 pcreapi man page.
213 . There is a separate counter that limits the depth of recursive function calls
214 during a matching process. This also has a default of ten million, which is
215 essentially "unlimited". You can change the default by setting, for example,
217 --with-match-limit-recursion=500000
219 Recursive function calls use up the runtime stack; running out of stack can
220 cause programs to crash in strange ways. There is a discussion about stack
221 sizes in the pcrestack man page.
223 . The default maximum compiled pattern size is around 64K. You can increase
224 this by adding --with-link-size=3 to the "configure" command. You can
225 increase it even more by setting --with-link-size=4, but this is unlikely
226 ever to be necessary. Increasing the internal link size will reduce
227 performance.
229 . You can build PCRE so that its internal match() function that is called from
230 pcre_exec() does not call itself recursively. Instead, it uses memory blocks
231 obtained from the heap via the special functions pcre_stack_malloc() and
232 pcre_stack_free() to save data that would otherwise be saved on the stack. To
233 build PCRE like this, use
235 --disable-stack-for-recursion
237 on the "configure" command. PCRE runs more slowly in this mode, but it may be
238 necessary in environments with limited stack sizes. This applies only to the
239 pcre_exec() function; it does not apply to pcre_dfa_exec(), which does not
240 use deeply nested recursion. There is a discussion about stack sizes in the
241 pcrestack man page.
243 . For speed, PCRE uses four tables for manipulating and identifying characters
244 whose code point values are less than 256. By default, it uses a set of
245 tables for ASCII encoding that is part of the distribution. If you specify
247 --enable-rebuild-chartables
249 a program called dftables is compiled and run in the default C locale when
250 you obey "make". It builds a source file called pcre_chartables.c. If you do
251 not specify this option, pcre_chartables.c is created as a copy of
252 pcre_chartables.c.dist. See "Character tables" below for further information.
254 . It is possible to compile PCRE for use on systems that use EBCDIC as their
255 default character code (as opposed to ASCII) by specifying
257 --enable-ebcdic
259 This automatically implies --enable-rebuild-chartables (see above).
261 . It is possible to compile pcregrep to use libz and/or libbz2, in order to
262 read .gz and .bz2 files (respectively), by specifying one or both of
264 --enable-pcregrep-libz
265 --enable-pcregrep-libbz2
267 Of course, the relevant libraries must be installed on your system.
269 . It is possible to compile pcretest so that it links with the libreadline
270 library, by specifying
272 --enable-pcretest-libreadline
274 If this is done, when pcretest's input is from a terminal, it reads it using
275 the readline() function. This provides line-editing and history facilities.
276 Note that libreadline is GPL-licenced, so if you distribute a binary of
277 pcretest linked in this way, there may be licensing issues.
279 The "configure" script builds the following files for the basic C library:
281 . Makefile is the makefile that builds the library
282 . config.h contains build-time configuration options for the library
283 . pcre.h is the public PCRE header file
284 . pcre-config is a script that shows the settings of "configure" options
285 . libpcre.pc is data for the pkg-config command
286 . libtool is a script that builds shared and/or static libraries
287 . RunTest is a script for running tests on the basic C library
288 . RunGrepTest is a script for running tests on the pcregrep command
290 Versions of config.h and pcre.h are distributed in the PCRE tarballs under
291 the names config.h.generic and pcre.h.generic. These are provided for the
292 benefit of those who have to built PCRE without the benefit of "configure". If
293 you use "configure", the .generic versions are not used.
295 If a C++ compiler is found, the following files are also built:
297 . libpcrecpp.pc is data for the pkg-config command
298 . pcrecpparg.h is a header file for programs that call PCRE via the C++ wrapper
299 . pcre_stringpiece.h is the header for the C++ "stringpiece" functions
301 The "configure" script also creates config.status, which is an executable
302 script that can be run to recreate the configuration, and config.log, which
303 contains compiler output from tests that "configure" runs.
305 Once "configure" has run, you can run "make". It builds two libraries, called
306 libpcre and libpcreposix, a test program called pcretest, and the pcregrep
307 command. If a C++ compiler was found on your system, "make" also builds the C++
308 wrapper library, which is called libpcrecpp, and some test programs called
309 pcrecpp_unittest, pcre_scanner_unittest, and pcre_stringpiece_unittest.
310 Building the C++ wrapper can be disabled by adding --disable-cpp to the
311 "configure" command.
313 The command "make check" runs all the appropriate tests. Details of the PCRE
314 tests are given below in a separate section of this document.
316 You can use "make install" to install PCRE into live directories on your
317 system. The following are installed (file names are all relative to the
318 <prefix> that is set when "configure" is run):
320 Commands (bin):
321 pcretest
322 pcregrep
323 pcre-config
325 Libraries (lib):
326 libpcre
327 libpcreposix
328 libpcrecpp (if C++ support is enabled)
330 Configuration information (lib/pkgconfig):
331 libpcre.pc
332 libpcrecpp.pc (if C++ support is enabled)
334 Header files (include):
335 pcre.h
336 pcreposix.h
337 pcre_scanner.h )
338 pcre_stringpiece.h ) if C++ support is enabled
339 pcrecpp.h )
340 pcrecpparg.h )
342 Man pages (share/man/man{1,3}):
343 pcregrep.1
344 pcretest.1
345 pcre.3
346 pcre*.3 (lots more pages, all starting "pcre")
348 HTML documentation (share/doc/pcre/html):
349 index.html
350 *.html (lots more pages, hyperlinked from index.html)
352 Text file documentation (share/doc/pcre):
355 ChangeLog
357 NEWS
359 pcre.txt (a concatenation of the man(3) pages)
360 pcretest.txt the pcretest man page
361 pcregrep.txt the pcregrep man page
363 If you want to remove PCRE from your system, you can run "make uninstall".
364 This removes all the files that "make install" installed. However, it does not
365 remove any directories, because these are often shared with other programs.
368 Retrieving configuration information on Unix-like systems
369 ---------------------------------------------------------
371 Running "make install" installs the command pcre-config, which can be used to
372 recall information about the PCRE configuration and installation. For example:
374 pcre-config --version
376 prints the version number, and
378 pcre-config --libs
380 outputs information about where the library is installed. This command can be
381 included in makefiles for programs that use PCRE, saving the programmer from
382 having to remember too many details.
384 The pkg-config command is another system for saving and retrieving information
385 about installed libraries. Instead of separate commands for each library, a
386 single command is used. For example:
388 pkg-config --cflags pcre
390 The data is held in *.pc files that are installed in a directory called
391 <prefix>/lib/pkgconfig.
394 Shared libraries on Unix-like systems
395 -------------------------------------
397 The default distribution builds PCRE as shared libraries and static libraries,
398 as long as the operating system supports shared libraries. Shared library
399 support relies on the "libtool" script which is built as part of the
400 "configure" process.
402 The libtool script is used to compile and link both shared and static
403 libraries. They are placed in a subdirectory called .libs when they are newly
404 built. The programs pcretest and pcregrep are built to use these uninstalled
405 libraries (by means of wrapper scripts in the case of shared libraries). When
406 you use "make install" to install shared libraries, pcregrep and pcretest are
407 automatically re-built to use the newly installed shared libraries before being
408 installed themselves. However, the versions left in the build directory still
409 use the uninstalled libraries.
411 To build PCRE using static libraries only you must use --disable-shared when
412 configuring it. For example:
414 ./configure --prefix=/usr/gnu --disable-shared
416 Then run "make" in the usual way. Similarly, you can use --disable-static to
417 build only shared libraries.
420 Cross-compiling on Unix-like systems
421 ------------------------------------
423 You can specify CC and CFLAGS in the normal way to the "configure" command, in
424 order to cross-compile PCRE for some other host. However, you should NOT
425 specify --enable-rebuild-chartables, because if you do, the dftables.c source
426 file is compiled and run on the local host, in order to generate the inbuilt
427 character tables (the pcre_chartables.c file). This will probably not work,
428 because dftables.c needs to be compiled with the local compiler, not the cross
429 compiler.
431 When --enable-rebuild-chartables is not specified, pcre_chartables.c is created
432 by making a copy of pcre_chartables.c.dist, which is a default set of tables
433 that assumes ASCII code. Cross-compiling with the default tables should not be
434 a problem.
436 If you need to modify the character tables when cross-compiling, you should
437 move pcre_chartables.c.dist out of the way, then compile dftables.c by hand and
438 run it on the local host to make a new version of pcre_chartables.c.dist.
439 Then when you cross-compile PCRE this new version of the tables will be used.
442 Using HP's ANSI C++ compiler (aCC)
443 ----------------------------------
445 Unless C++ support is disabled by specifying the "--disable-cpp" option of the
446 "configure" script, you must include the "-AA" option in the CXXFLAGS
447 environment variable in order for the C++ components to compile correctly.
449 Also, note that the aCC compiler on PA-RISC platforms may have a defect whereby
450 needed libraries fail to get included when specifying the "-AA" compiler
451 option. If you experience unresolved symbols when linking the C++ programs,
452 use the workaround of specifying the following environment variable prior to
453 running the "configure" script:
455 CXXLDFLAGS="-lstd_v2 -lCsup_v2"
458 Making new tarballs
459 -------------------
461 The command "make dist" creates three PCRE tarballs, in tar.gz, tar.bz2, and
462 zip formats. The command "make distcheck" does the same, but then does a trial
463 build of the new distribution to ensure that it works.
465 If you have modified any of the man page sources in the doc directory, you
466 should first run the PrepareRelease script before making a distribution. This
467 script creates the .txt and HTML forms of the documentation from the man pages.
470 Testing PCRE
471 ------------
473 To test the basic PCRE library on a Unix system, run the RunTest script that is
474 created by the configuring process. There is also a script called RunGrepTest
475 that tests the options of the pcregrep command. If the C++ wrapper library is
476 built, three test programs called pcrecpp_unittest, pcre_scanner_unittest, and
477 pcre_stringpiece_unittest are also built.
479 Both the scripts and all the program tests are run if you obey "make check" or
480 "make test". For other systems, see the instructions in NON-UNIX-USE.
482 The RunTest script runs the pcretest test program (which is documented in its
483 own man page) on each of the testinput files in the testdata directory in
484 turn, and compares the output with the contents of the corresponding testoutput
485 files. A file called testtry is used to hold the main output from pcretest
486 (testsavedregex is also used as a working file). To run pcretest on just one of
487 the test files, give its number as an argument to RunTest, for example:
489 RunTest 2
491 The first test file can also be fed directly into the perltest.pl script to
492 check that Perl gives the same results. The only difference you should see is
493 in the first few lines, where the Perl version is given instead of the PCRE
494 version.
496 The second set of tests check pcre_fullinfo(), pcre_info(), pcre_study(),
497 pcre_copy_substring(), pcre_get_substring(), pcre_get_substring_list(), error
498 detection, and run-time flags that are specific to PCRE, as well as the POSIX
499 wrapper API. It also uses the debugging flags to check some of the internals of
500 pcre_compile().
502 If you build PCRE with a locale setting that is not the standard C locale, the
503 character tables may be different (see next paragraph). In some cases, this may
504 cause failures in the second set of tests. For example, in a locale where the
505 isprint() function yields TRUE for characters in the range 128-255, the use of
506 [:isascii:] inside a character class defines a different set of characters, and
507 this shows up in this test as a difference in the compiled code, which is being
508 listed for checking. Where the comparison test output contains [\x00-\x7f] the
509 test will contain [\x00-\xff], and similarly in some other cases. This is not a
510 bug in PCRE.
512 The third set of tests checks pcre_maketables(), the facility for building a
513 set of character tables for a specific locale and using them instead of the
514 default tables. The tests make use of the "fr_FR" (French) locale. Before
515 running the test, the script checks for the presence of this locale by running
516 the "locale" command. If that command fails, or if it doesn't include "fr_FR"
517 in the list of available locales, the third test cannot be run, and a comment
518 is output to say why. If running this test produces instances of the error
520 ** Failed to set locale "fr_FR"
522 in the comparison output, it means that locale is not available on your system,
523 despite being listed by "locale". This does not mean that PCRE is broken.
525 [If you are trying to run this test on Windows, you may be able to get it to
526 work by changing "fr_FR" to "french" everywhere it occurs. Alternatively, use
527 RunTest.bat. The version of RunTest.bat included with PCRE 7.4 and above uses
528 Windows versions of test 2. More info on using RunTest.bat is included in the
529 document entitled NON-UNIX-USE.]
531 The fourth test checks the UTF-8 support. It is not run automatically unless
532 PCRE is built with UTF-8 support. To do this you must set --enable-utf8 when
533 running "configure". This file can be also fed directly to the perltest script,
534 provided you are running Perl 5.8 or higher. (For Perl 5.6, a small patch,
535 commented in the script, can be be used.)
537 The fifth test checks error handling with UTF-8 encoding, and internal UTF-8
538 features of PCRE that are not relevant to Perl.
540 The sixth test checks the support for Unicode character properties. It it not
541 run automatically unless PCRE is built with Unicode property support. To to
542 this you must set --enable-unicode-properties when running "configure".
544 The seventh, eighth, and ninth tests check the pcre_dfa_exec() alternative
545 matching function, in non-UTF-8 mode, UTF-8 mode, and UTF-8 mode with Unicode
546 property support, respectively. The eighth and ninth tests are not run
547 automatically unless PCRE is build with the relevant support.
550 Character tables
551 ----------------
553 For speed, PCRE uses four tables for manipulating and identifying characters
554 whose code point values are less than 256. The final argument of the
555 pcre_compile() function is a pointer to a block of memory containing the
556 concatenated tables. A call to pcre_maketables() can be used to generate a set
557 of tables in the current locale. If the final argument for pcre_compile() is
558 passed as NULL, a set of default tables that is built into the binary is used.
560 The source file called pcre_chartables.c contains the default set of tables. By
561 default, this is created as a copy of pcre_chartables.c.dist, which contains
562 tables for ASCII coding. However, if --enable-rebuild-chartables is specified
563 for ./configure, a different version of pcre_chartables.c is built by the
564 program dftables (compiled from dftables.c), which uses the ANSI C character
565 handling functions such as isalnum(), isalpha(), isupper(), islower(), etc. to
566 build the table sources. This means that the default C locale which is set for
567 your system will control the contents of these default tables. You can change
568 the default tables by editing pcre_chartables.c and then re-building PCRE. If
569 you do this, you should take care to ensure that the file does not get
570 automatically re-generated. The best way to do this is to move
571 pcre_chartables.c.dist out of the way and replace it with your customized
572 tables.
574 When the dftables program is run as a result of --enable-rebuild-chartables,
575 it uses the default C locale that is set on your system. It does not pay
576 attention to the LC_xxx environment variables. In other words, it uses the
577 system's default locale rather than whatever the compiling user happens to have
578 set. If you really do want to build a source set of character tables in a
579 locale that is specified by the LC_xxx variables, you can run the dftables
580 program by hand with the -L option. For example:
582 ./dftables -L pcre_chartables.c.special
584 The first two 256-byte tables provide lower casing and case flipping functions,
585 respectively. The next table consists of three 32-byte bit maps which identify
586 digits, "word" characters, and white space, respectively. These are used when
587 building 32-byte bit maps that represent character classes for code points less
588 than 256.
590 The final 256-byte table has bits indicating various character types, as
591 follows:
593 1 white space character
594 2 letter
595 4 decimal digit
596 8 hexadecimal digit
597 16 alphanumeric or '_'
598 128 regular expression metacharacter or binary zero
600 You should not alter the set of characters that contain the 128 bit, as that
601 will cause PCRE to malfunction.
604 File manifest
605 -------------
607 The distribution should contain the following files:
609 (A) Source files of the PCRE library functions and their headers:
611 dftables.c auxiliary program for building pcre_chartables.c
612 when --enable-rebuild-chartables is specified
614 pcre_chartables.c.dist a default set of character tables that assume ASCII
615 coding; used, unless --enable-rebuild-chartables is
616 specified, by copying to pcre_chartables.c
618 pcreposix.c )
619 pcre_compile.c )
620 pcre_config.c )
621 pcre_dfa_exec.c )
622 pcre_exec.c )
623 pcre_fullinfo.c )
624 pcre_get.c ) sources for the functions in the library,
625 pcre_globals.c ) and some internal functions that they use
626 pcre_info.c )
627 pcre_maketables.c )
628 pcre_newline.c )
629 pcre_ord2utf8.c )
630 pcre_refcount.c )
631 pcre_study.c )
632 pcre_tables.c )
633 pcre_try_flipped.c )
634 pcre_ucp_searchfuncs.c )
635 pcre_valid_utf8.c )
636 pcre_version.c )
637 pcre_xclass.c )
638 pcre_printint.src ) debugging function that is #included in pcretest,
639 ) and can also be #included in pcre_compile()
640 pcre.h.in template for pcre.h when built by "configure"
641 pcreposix.h header for the external POSIX wrapper API
642 pcre_internal.h header for internal use
643 ucp.h ) headers concerned with
644 ucpinternal.h ) Unicode property handling
645 ucptable.h ) (this one is the data table)
647 config.h.in template for config.h, which is built by "configure"
649 pcrecpp.h public header file for the C++ wrapper
650 pcrecpparg.h.in template for another C++ header file
651 pcre_scanner.h public header file for C++ scanner functions
652 pcrecpp.cc )
653 pcre_scanner.cc ) source for the C++ wrapper library
655 pcre_stringpiece.h.in template for pcre_stringpiece.h, the header for the
656 C++ stringpiece functions
657 pcre_stringpiece.cc source for the C++ stringpiece functions
659 (B) Source files for programs that use PCRE:
661 pcredemo.c simple demonstration of coding calls to PCRE
662 pcregrep.c source of a grep utility that uses PCRE
663 pcretest.c comprehensive test program
665 (C) Auxiliary files:
667 132html script to turn "man" pages into HTML
668 AUTHORS information about the author of PCRE
669 ChangeLog log of changes to the code
670 CleanTxt script to clean nroff output for txt man pages
671 Detrail script to remove trailing spaces
672 HACKING some notes about the internals of PCRE
673 INSTALL generic installation instructions
674 LICENCE conditions for the use of PCRE
675 COPYING the same, using GNU's standard name
676 Makefile.in ) template for Unix Makefile, which is built by
677 ) "configure"
678 Makefile.am ) the automake input that was used to create
679 ) Makefile.in
680 NEWS important changes in this release
681 NON-UNIX-USE notes on building PCRE on non-Unix systems
682 PrepareRelease script to make preparations for "make dist"
683 README this file
684 RunTest a Unix shell script for running tests
685 RunGrepTest a Unix shell script for pcregrep tests
686 aclocal.m4 m4 macros (generated by "aclocal")
687 config.guess ) files used by libtool,
688 config.sub ) used only when building a shared library
689 configure a configuring shell script (built by autoconf)
690 configure.ac ) the autoconf input that was used to build
691 ) "configure" and config.h
692 depcomp ) script to find program dependencies, generated by
693 ) automake
694 doc/*.3 man page sources for the PCRE functions
695 doc/*.1 man page sources for pcregrep and pcretest
696 doc/index.html.src the base HTML page
697 doc/html/* HTML documentation
698 doc/pcre.txt plain text version of the man pages
699 doc/pcretest.txt plain text documentation of test program
700 doc/perltest.txt plain text documentation of Perl test program
701 install-sh a shell script for installing files
702 libpcre.pc.in template for libpcre.pc for pkg-config
703 libpcrecpp.pc.in template for libpcrecpp.pc for pkg-config
704 ltmain.sh file used to build a libtool script
705 missing ) common stub for a few missing GNU programs while
706 ) installing, generated by automake
707 mkinstalldirs script for making install directories
708 perltest.pl Perl test program
709 pcre-config.in source of script which retains PCRE information
710 pcrecpp_unittest.cc )
711 pcre_scanner_unittest.cc ) test programs for the C++ wrapper
712 pcre_stringpiece_unittest.cc )
713 testdata/testinput* test data for main library tests
714 testdata/testoutput* expected test results
715 testdata/grep* input and output for pcregrep tests
717 (D) Auxiliary files for cmake support
719 CMakeLists.txt
720 config-cmake.h.in
722 (E) Auxiliary files for VPASCAL
724 makevp.bat
725 makevp_c.txt
726 makevp_l.txt
727 pcregexp.pas
729 (F) Auxiliary files for building PCRE "by hand"
731 pcre.h.generic ) a version of the public PCRE header file
732 ) for use in non-"configure" environments
733 config.h.generic ) a version of config.h for use in non-"configure"
734 ) environments
736 (F) Miscellaneous
738 RunTest.bat a script for running tests under Windows
740 Philip Hazel
741 Email local part: ph10
742 Email domain: cam.ac.uk
743 Last updated: 23 January 2008


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