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1 nigel 41 README file for PCRE (Perl-compatible regular expression library)
2     -----------------------------------------------------------------
3 nigel 3
4 nigel 43 The latest release of PCRE is always available from
6     ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-xxx.tar.gz
7 ph10 111
8     There is a mailing list for discussion about the development of PCRE at
10     pcre-dev@exim.org
11 nigel 43
12 nigel 41 Please read the NEWS file if you are upgrading from a previous release.
13 ph10 109 The contents of this README file are:
14 nigel 23
15 ph10 109 The PCRE APIs
16     Documentation for PCRE
17     Contributions by users of PCRE
18     Building PCRE on non-Unix systems
19     Building PCRE on a Unix-like system
20     Retrieving configuration information on a Unix-like system
21     Shared libraries on Unix-like systems
22     Cross-compiling on a Unix-like system
23     Using HP's ANSI C++ compiler (aCC)
24 ph10 111 Making new tarballs
25 ph10 109 Testing PCRE
26     Character tables
27     File manifest
28 nigel 35
29 ph10 109
30 nigel 77 The PCRE APIs
31     -------------
33     PCRE is written in C, and it has its own API. The distribution now includes a
34     set of C++ wrapper functions, courtesy of Google Inc. (see the pcrecpp man page
35     for details).
37 ph10 109 Also included in the distribution are a set of C wrapper functions that are
38     based on the POSIX API. These end up in the library called libpcreposix. Note
39     that this just provides a POSIX calling interface to PCRE; the regular
40     expressions themselves still follow Perl syntax and semantics. The POSIX API is
41     restricted, and does not give full access to all of PCRE's facilities.
42 nigel 77
43 ph10 109 The header file for the POSIX-style functions is called pcreposix.h. The
44     official POSIX name is regex.h, but I did not want to risk possible problems
45     with existing files of that name by distributing it that way. To use PCRE with
46     an existing program that uses the POSIX API, pcreposix.h will have to be
47     renamed or pointed at by a link.
49 nigel 73 If you are using the POSIX interface to PCRE and there is already a POSIX regex
50 ph10 109 library installed on your system, as well as worrying about the regex.h header
51     file (as mentioned above), you must also take care when linking programs to
52 nigel 73 ensure that they link with PCRE's libpcreposix library. Otherwise they may pick
53 ph10 109 up the POSIX functions of the same name from the other library.
54 nigel 49
55 ph10 109 One way of avoiding this confusion is to compile PCRE with the addition of
56     -Dregcomp=PCREregcomp (and similarly for the other functions) to the compiler
57     flags (CFLAGS if you are using "configure" -- see below). This has the effect
58     of renaming the functions so that the names no longer clash. Of course, you
59     have to do the same thing for your applications, or write them using the new
60     names.
61 nigel 73
62 ph10 109
63 nigel 75 Documentation for PCRE
64     ----------------------
66     If you install PCRE in the normal way, you will end up with an installed set of
67 nigel 91 man pages whose names all start with "pcre". The one that is just called "pcre"
68 nigel 75 lists all the others. In addition to these man pages, the PCRE documentation is
69 ph10 109 supplied in two other forms:
70 nigel 75
71 ph10 109 1. There are files called doc/pcre.txt, doc/pcregrep.txt, and
72     doc/pcretest.txt in the source distribution. The first of these is a
73     concatenation of the text forms of all the section 3 man pages except
74     those that summarize individual functions. The other two are the text
75     forms of the section 1 man pages for the pcregrep and pcretest commands.
76     These text forms are provided for ease of scanning with text editors or
77 ph10 111 similar tools. They are installed in <prefix>/share/doc/pcre, where
78     <prefix> is the installation prefix (defaulting to /usr/local).
79 nigel 75
80 ph10 109 2. A set of files containing all the documentation in HTML form, hyperlinked
81     in various ways, and rooted in a file called index.html, is installed in
82 ph10 111 the directory <prefix>/share/doc/pcre/html.
83 nigel 75
85 nigel 53 Contributions by users of PCRE
86     ------------------------------
88     You can find contributions from PCRE users in the directory
90     ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/Contrib
92     where there is also a README file giving brief descriptions of what they are.
93 ph10 109 Some are complete in themselves; others are pointers to URLs containing
94     relevant files. Some of this material is likely to be well out-of-date. In
95     particular, several of the contributions provide support for compiling PCRE on
96     various flavours of Windows (I myself do not use Windows), but it is hoped that
97     more Windows support will find its way into the standard distribution.
98 nigel 53
100 ph10 109 Building PCRE on non-Unix systems
101     ---------------------------------
102 ph10 101
103     For a non-Unix system, read the comments in the file NON-UNIX-USE, though if
104     the system supports the use of "configure" and "make" you may be able to build
105 ph10 109 PCRE in the same way as for Unix-like systems.
106 ph10 101
107 ph10 109 PCRE has been compiled on many different operating systems. It should be
108     straightforward to build PCRE on any system that has a Standard C compiler and
109     library, because it uses only Standard C functions.
110 ph10 101
112 nigel 63 Building PCRE on a Unix-like system
113     -----------------------------------
114 nigel 3
115 nigel 87 If you are using HP's ANSI C++ compiler (aCC), please see the special note
116     in the section entitled "Using HP's ANSI C++ compiler (aCC)" below.
118 nigel 63 To build PCRE on a Unix-like system, first run the "configure" command from the
119     PCRE distribution directory, with your current directory set to the directory
120     where you want the files to be created. This command is a standard GNU
121     "autoconf" configuration script, for which generic instructions are supplied in
122     INSTALL.
123 nigel 3
124 nigel 53 Most commonly, people build PCRE within its own distribution directory, and in
125 ph10 109 this case, on many systems, just running "./configure" is sufficient. However,
126     the usual methods of changing standard defaults are available. For example:
127 nigel 53
128 nigel 41 CFLAGS='-O2 -Wall' ./configure --prefix=/opt/local
130     specifies that the C compiler should be run with the flags '-O2 -Wall' instead
131     of the default, and that "make install" should install PCRE under /opt/local
132 nigel 49 instead of the default /usr/local.
133 nigel 41
134 nigel 53 If you want to build in a different directory, just run "configure" with that
135     directory as current. For example, suppose you have unpacked the PCRE source
136     into /source/pcre/pcre-xxx, but you want to build it in /build/pcre/pcre-xxx:
138     cd /build/pcre/pcre-xxx
139     /source/pcre/pcre-xxx/configure
141 nigel 87 PCRE is written in C and is normally compiled as a C library. However, it is
142     possible to build it as a C++ library, though the provided building apparatus
143     does not have any features to support this.
145 nigel 63 There are some optional features that can be included or omitted from the PCRE
146     library. You can read more about them in the pcrebuild man page.
147 nigel 49
148 nigel 83 . If you want to suppress the building of the C++ wrapper library, you can add
149     --disable-cpp to the "configure" command. Otherwise, when "configure" is run,
150     will try to find a C++ compiler and C++ header files, and if it succeeds, it
151     will try to build the C++ wrapper.
153 nigel 63 . If you want to make use of the support for UTF-8 character strings in PCRE,
154     you must add --enable-utf8 to the "configure" command. Without it, the code
155     for handling UTF-8 is not included in the library. (Even when included, it
156     still has to be enabled by an option at run time.)
158 nigel 75 . If, in addition to support for UTF-8 character strings, you want to include
159     support for the \P, \p, and \X sequences that recognize Unicode character
160     properties, you must add --enable-unicode-properties to the "configure"
161 nigel 91 command. This adds about 30K to the size of the library (in the form of a
162 nigel 75 property table); only the basic two-letter properties such as Lu are
163     supported.
165 nigel 93 . You can build PCRE to recognize either CR or LF or the sequence CRLF or any
166     of the Unicode newline sequences as indicating the end of a line. Whatever
167     you specify at build time is the default; the caller of PCRE can change the
168     selection at run time. The default newline indicator is a single LF character
169     (the Unix standard). You can specify the default newline indicator by adding
170     --newline-is-cr or --newline-is-lf or --newline-is-crlf or --newline-is-any
171     to the "configure" command, respectively.
172 ph10 109
173     If you specify --newline-is-cr or --newline-is-crlf, some of the standard
174     tests will fail, because the lines in the test files end with LF. Even if
175 ph10 99 the files are edited to change the line endings, there are likely to be some
176     failures. With --newline-is-any, many tests should succeed, but there may be
177     some failures.
178 nigel 63
179     . When called via the POSIX interface, PCRE uses malloc() to get additional
180     storage for processing capturing parentheses if there are more than 10 of
181     them. You can increase this threshold by setting, for example,
183     --with-posix-malloc-threshold=20
185     on the "configure" command.
187 nigel 77 . PCRE has a counter that can be set to limit the amount of resources it uses.
188 nigel 63 If the limit is exceeded during a match, the match fails. The default is ten
189     million. You can change the default by setting, for example,
191     --with-match-limit=500000
193     on the "configure" command. This is just the default; individual calls to
194     pcre_exec() can supply their own value. There is discussion on the pcreapi
195     man page.
197 nigel 91 . There is a separate counter that limits the depth of recursive function calls
198     during a matching process. This also has a default of ten million, which is
199     essentially "unlimited". You can change the default by setting, for example,
201     --with-match-limit-recursion=500000
203     Recursive function calls use up the runtime stack; running out of stack can
204     cause programs to crash in strange ways. There is a discussion about stack
205     sizes in the pcrestack man page.
207 nigel 63 . The default maximum compiled pattern size is around 64K. You can increase
208     this by adding --with-link-size=3 to the "configure" command. You can
209     increase it even more by setting --with-link-size=4, but this is unlikely
210     ever to be necessary. If you build PCRE with an increased link size, test 2
211     (and 5 if you are using UTF-8) will fail. Part of the output of these tests
212     is a representation of the compiled pattern, and this changes with the link
213     size.
215 nigel 77 . You can build PCRE so that its internal match() function that is called from
216     pcre_exec() does not call itself recursively. Instead, it uses blocks of data
217     from the heap via special functions pcre_stack_malloc() and pcre_stack_free()
218     to save data that would otherwise be saved on the stack. To build PCRE like
219     this, use
220 nigel 73
221     --disable-stack-for-recursion
223     on the "configure" command. PCRE runs more slowly in this mode, but it may be
224 nigel 77 necessary in environments with limited stack sizes. This applies only to the
225     pcre_exec() function; it does not apply to pcre_dfa_exec(), which does not
226     use deeply nested recursion.
227 nigel 73
228 ph10 109 The "configure" script builds the following files for the basic C library:
229 nigel 49
230 nigel 77 . Makefile is the makefile that builds the library
231     . config.h contains build-time configuration options for the library
232 ph10 109 . pcre.h is the public PCRE header file
233 nigel 77 . pcre-config is a script that shows the settings of "configure" options
234     . libpcre.pc is data for the pkg-config command
235 nigel 75 . libtool is a script that builds shared and/or static libraries
236 ph10 109 . RunTest is a script for running tests on the basic C library
237 nigel 77 . RunGrepTest is a script for running tests on the pcregrep command
238 nigel 41
239 ph10 109 Versions of config.h and pcre.h are distributed in the PCRE tarballs. These are
240     provided for the benefit of those who have to compile PCRE without the benefit
241     of "configure". If you use "configure", the distributed copies are replaced.
242 nigel 77
243 ph10 109 If a C++ compiler is found, the following files are also built:
245     . libpcrecpp.pc is data for the pkg-config command
246     . pcrecpparg.h is a header file for programs that call PCRE via the C++ wrapper
247 nigel 77 . pcre_stringpiece.h is the header for the C++ "stringpiece" functions
249     The "configure" script also creates config.status, which is an executable
250     script that can be run to recreate the configuration, and config.log, which
251     contains compiler output from tests that "configure" runs.
253     Once "configure" has run, you can run "make". It builds two libraries, called
254 ph10 109 libpcre and libpcreposix, a test program called pcretest, a demonstration
255     program called pcredemo, and the pcregrep command. If a C++ compiler was found
256     on your system, it also builds the C++ wrapper library, which is called
257     libpcrecpp, and some test programs called pcrecpp_unittest,
258     pcre_scanner_unittest, and pcre_stringpiece_unittest.
259 nigel 3
260 ph10 109 The command "make check" runs all the appropriate tests. Details of the PCRE
261     tests are given below in a separate section of this document.
262 nigel 75
263 ph10 109 You can use "make install" to install PCRE into live directories on your
264     system. The following are installed (file names are all relative to the
265     <prefix> that is set when "configure" is run):
266 nigel 77
267 ph10 109 Commands (bin):
268     pcretest
269     pcregrep
270 ph10 111 pcre-config
271 ph10 109
272     Libraries (lib):
273     libpcre
274     libpcreposix
275     libpcrecpp (if C++ support is enabled)
277     Configuration information (lib/pkgconfig):
278     libpcre.pc
279     libpcrecpp.ps (if C++ support is enabled)
281     Header files (include):
282     pcre.h
283     pcreposix.h
284     pcre_scanner.h )
285     pcre_stringpiece.h ) if C++ support is enabled
286     pcrecpp.h )
287     pcrecpparg.h )
289     Man pages (share/man/man{1,3}):
290     pcregrep.1
291     pcretest.1
292     pcre.3
293     pcre*.3 (lots more pages, all starting "pcre")
295     HTML documentation (share/doc/pcre/html):
296     index.html
297     *.html (lots more pages, hyperlinked from index.html)
299     Text file documentation (share/doc/pcre):
300     AUTHORS
301     COPYING
302     ChangeLog
303     LICENCE
304     NEWS
305     README
306     pcre.txt (a concatenation of the man(3) pages)
307     pcretest.txt the pcretest man page
308     pcregrep.txt the pcregrep man page
310 ph10 111 Note that the pcredemo program that is built by "configure" is *not* installed
311 ph10 109 anywhere. It is a demonstration for programmers wanting to use PCRE.
313 nigel 77 If you want to remove PCRE from your system, you can run "make uninstall".
314     This removes all the files that "make install" installed. However, it does not
315     remove any directories, because these are often shared with other programs.
318 ph10 109 Retrieving configuration information on a Unix-like system
319     ----------------------------------------------------------
320 nigel 75
321 ph10 109 Running "make install" installs the command pcre-config, which can be used to
322     recall information about the PCRE configuration and installation. For example:
323 nigel 37
324 nigel 43 pcre-config --version
326     prints the version number, and
328 nigel 75 pcre-config --libs
329 nigel 43
330     outputs information about where the library is installed. This command can be
331     included in makefiles for programs that use PCRE, saving the programmer from
332     having to remember too many details.
334 nigel 75 The pkg-config command is another system for saving and retrieving information
335     about installed libraries. Instead of separate commands for each library, a
336     single command is used. For example:
337 nigel 43
338 nigel 75 pkg-config --cflags pcre
340     The data is held in *.pc files that are installed in a directory called
341 ph10 109 <prefix>/lib/pkgconfig.
342 nigel 75
344 nigel 63 Shared libraries on Unix-like systems
345     -------------------------------------
346 nigel 53
347 nigel 77 The default distribution builds PCRE as shared libraries and static libraries,
348     as long as the operating system supports shared libraries. Shared library
349     support relies on the "libtool" script which is built as part of the
350 nigel 53 "configure" process.
351 nigel 39
352 nigel 53 The libtool script is used to compile and link both shared and static
353     libraries. They are placed in a subdirectory called .libs when they are newly
354     built. The programs pcretest and pcregrep are built to use these uninstalled
355     libraries (by means of wrapper scripts in the case of shared libraries). When
356     you use "make install" to install shared libraries, pcregrep and pcretest are
357     automatically re-built to use the newly installed shared libraries before being
358     installed themselves. However, the versions left in the source directory still
359     use the uninstalled libraries.
361     To build PCRE using static libraries only you must use --disable-shared when
362 nigel 75 configuring it. For example:
363 nigel 3
364 nigel 43 ./configure --prefix=/usr/gnu --disable-shared
365 nigel 41
366 nigel 53 Then run "make" in the usual way. Similarly, you can use --disable-static to
367     build only shared libraries.
368 nigel 41
369 nigel 43
370 nigel 63 Cross-compiling on a Unix-like system
371     -------------------------------------
373     You can specify CC and CFLAGS in the normal way to the "configure" command, in
374     order to cross-compile PCRE for some other host. However, during the building
375     process, the dftables.c source file is compiled *and run* on the local host, in
376     order to generate the default character tables (the chartables.c file). It
377     therefore needs to be compiled with the local compiler, not the cross compiler.
378 nigel 77 You can do this by specifying CC_FOR_BUILD (and if necessary CFLAGS_FOR_BUILD;
379     there are also CXX_FOR_BUILD and CXXFLAGS_FOR_BUILD for the C++ wrapper)
380 nigel 73 when calling the "configure" command. If they are not specified, they default
381     to the values of CC and CFLAGS.
382 nigel 63
384 nigel 87 Using HP's ANSI C++ compiler (aCC)
385     ----------------------------------
387 nigel 93 Unless C++ support is disabled by specifying the "--disable-cpp" option of the
388 nigel 87 "configure" script, you *must* include the "-AA" option in the CXXFLAGS
389     environment variable in order for the C++ components to compile correctly.
391     Also, note that the aCC compiler on PA-RISC platforms may have a defect whereby
392     needed libraries fail to get included when specifying the "-AA" compiler
393     option. If you experience unresolved symbols when linking the C++ programs,
394     use the workaround of specifying the following environment variable prior to
395     running the "configure" script:
397     CXXLDFLAGS="-lstd_v2 -lCsup_v2"
398 ph10 111
399 nigel 87
400 ph10 111 Making new tarballs
401     -------------------
402 nigel 87
403 ph10 111 The command "make dist" creates three PCRE tarballs, in tar.gz, tar.bz2, and
404     zip formats. However, if you have modified any of the man page sources in the
405     doc directory, you should first run the PrepareRelease script. This re-creates
406     the .txt and HTML forms of the documentation from the man pages.
409 nigel 41 Testing PCRE
410     ------------
412 nigel 53 To test PCRE on a Unix system, run the RunTest script that is created by the
413 nigel 77 configuring process. There is also a script called RunGrepTest that tests the
414     options of the pcregrep command. If the C++ wrapper library is build, three
415     test programs called pcrecpp_unittest, pcre_scanner_unittest, and
416 ph10 109 pcre_stringpiece_unittest are also built.
417 nigel 41
418 ph10 109 Both the scripts and all the program tests are run if you obey "make check" or
419     "make test". For other systems, see the instructions in NON-UNIX-USE.
420 nigel 77
421     The RunTest script runs the pcretest test program (which is documented in its
422     own man page) on each of the testinput files (in the testdata directory) in
423     turn, and compares the output with the contents of the corresponding testoutput
424 nigel 93 files. A file called testtry is used to hold the main output from pcretest
425 nigel 75 (testsavedregex is also used as a working file). To run pcretest on just one of
426     the test files, give its number as an argument to RunTest, for example:
427 nigel 41
428 nigel 63 RunTest 2
429 nigel 3
430 ph10 109 The first test file can also be fed directly into the perltest.pl script to
431     check that Perl gives the same results. The only difference you should see is
432     in the first few lines, where the Perl version is given instead of the PCRE
433     version.
434 nigel 3
435 nigel 49 The second set of tests check pcre_fullinfo(), pcre_info(), pcre_study(),
436     pcre_copy_substring(), pcre_get_substring(), pcre_get_substring_list(), error
437     detection, and run-time flags that are specific to PCRE, as well as the POSIX
438     wrapper API. It also uses the debugging flag to check some of the internals of
439     pcre_compile().
440 nigel 7
441 nigel 49 If you build PCRE with a locale setting that is not the standard C locale, the
442     character tables may be different (see next paragraph). In some cases, this may
443     cause failures in the second set of tests. For example, in a locale where the
444     isprint() function yields TRUE for characters in the range 128-255, the use of
445     [:isascii:] inside a character class defines a different set of characters, and
446     this shows up in this test as a difference in the compiled code, which is being
447     listed for checking. Where the comparison test output contains [\x00-\x7f] the
448     test will contain [\x00-\xff], and similarly in some other cases. This is not a
449     bug in PCRE.
451 nigel 63 The third set of tests checks pcre_maketables(), the facility for building a
452 nigel 25 set of character tables for a specific locale and using them instead of the
453 nigel 73 default tables. The tests make use of the "fr_FR" (French) locale. Before
454     running the test, the script checks for the presence of this locale by running
455     the "locale" command. If that command fails, or if it doesn't include "fr_FR"
456     in the list of available locales, the third test cannot be run, and a comment
457     is output to say why. If running this test produces instances of the error
458 nigel 25
459 nigel 73 ** Failed to set locale "fr_FR"
460 nigel 25
461     in the comparison output, it means that locale is not available on your system,
462     despite being listed by "locale". This does not mean that PCRE is broken.
464 nigel 63 The fourth test checks the UTF-8 support. It is not run automatically unless
465     PCRE is built with UTF-8 support. To do this you must set --enable-utf8 when
466     running "configure". This file can be also fed directly to the perltest script,
467     provided you are running Perl 5.8 or higher. (For Perl 5.6, a small patch,
468     commented in the script, can be be used.)
469 nigel 3
470 nigel 75 The fifth test checks error handling with UTF-8 encoding, and internal UTF-8
471     features of PCRE that are not relevant to Perl.
472 nigel 3
473 nigel 77 The sixth and test checks the support for Unicode character properties. It it
474     not run automatically unless PCRE is built with Unicode property support. To to
475     this you must set --enable-unicode-properties when running "configure".
476 nigel 63
477 nigel 77 The seventh, eighth, and ninth tests check the pcre_dfa_exec() alternative
478     matching function, in non-UTF-8 mode, UTF-8 mode, and UTF-8 mode with Unicode
479     property support, respectively. The eighth and ninth tests are not run
480     automatically unless PCRE is build with the relevant support.
481 nigel 75
482 nigel 77
483 nigel 3 Character tables
484     ----------------
486 nigel 75 PCRE uses four tables for manipulating and identifying characters whose values
487     are less than 256. The final argument of the pcre_compile() function is a
488     pointer to a block of memory containing the concatenated tables. A call to
489     pcre_maketables() can be used to generate a set of tables in the current
490     locale. If the final argument for pcre_compile() is passed as NULL, a set of
491     default tables that is built into the binary is used.
492 nigel 3
493 nigel 25 The source file called chartables.c contains the default set of tables. This is
494 nigel 27 not supplied in the distribution, but is built by the program dftables
495     (compiled from dftables.c), which uses the ANSI C character handling functions
496 nigel 25 such as isalnum(), isalpha(), isupper(), islower(), etc. to build the table
497 nigel 35 sources. This means that the default C locale which is set for your system will
498     control the contents of these default tables. You can change the default tables
499     by editing chartables.c and then re-building PCRE. If you do this, you should
500     probably also edit Makefile to ensure that the file doesn't ever get
501     re-generated.
502 nigel 3
503 nigel 25 The first two 256-byte tables provide lower casing and case flipping functions,
504     respectively. The next table consists of three 32-byte bit maps which identify
505     digits, "word" characters, and white space, respectively. These are used when
506 ph10 111 building 32-byte bit maps that represent character classes for code points less
507 ph10 109 than 256.
508 nigel 25
509     The final 256-byte table has bits indicating various character types, as
510 nigel 3 follows:
512     1 white space character
513     2 letter
514     4 decimal digit
515     8 hexadecimal digit
516     16 alphanumeric or '_'
517     128 regular expression metacharacter or binary zero
519     You should not alter the set of characters that contain the 128 bit, as that
520     will cause PCRE to malfunction.
523 ph10 109 File manifest
524     -------------
525 nigel 3
526 nigel 41 The distribution should contain the following files:
527 nigel 3
528 ph10 109 (A) Source files of the PCRE library functions and their headers:
529 nigel 3
530 ph10 109 dftables.c auxiliary program for building chartables.c
531 ph10 111
532 ph10 109 pcreposix.c )
533     pcre_compile.c )
534     pcre_config.c )
535     pcre_dfa_exec.c )
536     pcre_exec.c )
537     pcre_fullinfo.c )
538     pcre_get.c ) sources for the functions in the library,
539     pcre_globals.c ) and some internal functions that they use
540     pcre_info.c )
541     pcre_maketables.c )
542     pcre_newline.c )
543     pcre_ord2utf8.c )
544     pcre_refcount.c )
545     pcre_study.c )
546     pcre_tables.c )
547     pcre_try_flipped.c )
548     pcre_ucp_searchfuncs.c )
549     pcre_valid_utf8.c )
550     pcre_version.c )
551     pcre_xclass.c )
552     pcre_printint.src ) debugging function that is #included in pcretest,
553     ) and can also be #included in pcre_compile()
554     pcre.h.in template for pcre.h when built by "configure"
555     pcreposix.h header for the external POSIX wrapper API
556     pcre_internal.h header for internal use
557     ucp.h ) headers concerned with
558     ucpinternal.h ) Unicode property handling
559     ucptable.h ) (this one is the data table)
560 ph10 111
561     config.h.in template for config.h, which is built by "configure"
563 ph10 109 pcrecpp.h public header file for the C++ wrapper
564     pcrecpparg.h.in template for another C++ header file
565 ph10 111 pcre_scanner.h public header file for C++ scanner functions
566 ph10 109 pcrecpp.cc )
567     pcre_scanner.cc ) source for the C++ wrapper library
568 ph10 111
569 ph10 109 pcre_stringpiece.h.in template for pcre_stringpiece.h, the header for the
570     C++ stringpiece functions
571     pcre_stringpiece.cc source for the C++ stringpiece functions
572 ph10 111
573 ph10 109 (B) Source files for programs that use PCRE:
574 nigel 75
575 ph10 109 pcredemo.c simple demonstration of coding calls to PCRE
576     pcregrep.c source of a grep utility that uses PCRE
577     pcretest.c comprehensive test program
578 ph10 111
579     (C) Auxiliary files:
581     132html script to turn "man" pages into HTML
582 ph10 109 AUTHORS information about the author of PCRE
583     ChangeLog log of changes to the code
584 ph10 111 CleanTxt script to clean nroff output for txt man pages
585     Detrail script to remove trailing spaces
586     Index.html the base HTML page
587 ph10 109 INSTALL generic installation instructions
588     LICENCE conditions for the use of PCRE
589     COPYING the same, using GNU's standard name
590 ph10 111 Makefile.in ) template for Unix Makefile, which is built by
591 ph10 109 ) "configure"
592     Makefile.am ) the automake input that was used to create
593 ph10 111 ) Makefile.in
594 ph10 109 NEWS important changes in this release
595     NON-UNIX-USE notes on building PCRE on non-Unix systems
596 ph10 111 PrepareRelease script to make preparations for "make dist"
597 ph10 109 README this file
598     RunTest.in template for a Unix shell script for running tests
599     RunGrepTest.in template for a Unix shell script for pcregrep tests
600     aclocal.m4 m4 macros (generated by "aclocal")
601     config.guess ) files used by libtool,
602     config.sub ) used only when building a shared library
603     configure a configuring shell script (built by autoconf)
604 ph10 111 configure.ac ) the autoconf input that was used to build
605 ph10 109 ) "configure" and config.h
606     depcomp ) script to find program dependencies, generated by
607 ph10 111 ) automake
608 ph10 109 doc/*.3 man page sources for the PCRE functions
609     doc/*.1 man page sources for pcregrep and pcretest
610     doc/html/* HTML documentation
611     doc/pcre.txt plain text version of the man pages
612     doc/pcretest.txt plain text documentation of test program
613     doc/perltest.txt plain text documentation of Perl test program
614     install-sh a shell script for installing files
615     libpcre.pc.in template for libpcre.pc for pkg-config
616 ph10 111 libpcrecpp.pc.in template for libpcrecpp.pc for pkg-config
617 ph10 109 ltmain.sh file used to build a libtool script
618 ph10 111 missing ) common stub for a few missing GNU programs while
619 ph10 109 ) installing, generated by automake
620     mkinstalldirs script for making install directories
621     perltest.pl Perl test program
622     pcre-config.in source of script which retains PCRE information
623 ph10 111 pcrecpp_unittest.cc )
624     pcre_scanner_unittest.cc ) test programs for the C++ wrapper
625     pcre_stringpiece_unittest.cc )
626 ph10 109 testdata/testinput* test data for main library tests
627     testdata/testoutput* expected test results
628     testdata/grep* input and output for pcregrep tests
629 ph10 111
630 ph10 109 (D) Auxiliary files for cmake support
631 nigel 3
632 ph10 109 CMakeLists.txt
633 ph10 111 config-cmake.h.in
634 nigel 29
635 ph10 109 (E) Auxiliary files for VPASCAL
636 nigel 29
637 nigel 63 makevp.bat
638 ph10 109 !compile.txt
639     !linklib.txt
640 ph10 111 pcregexp.pas
642     (F) Auxiliary files for building PCRE "by hand"
644     pcre.h.generic ) a version of the public PCRE header file
645     ) for use in non-"configure" environments
646     config.h.generic ) a version of config.h for use in non-"configure"
647     ) environments
649 ph10 109 (F) Miscellaneous
650 nigel 63
651 ph10 109 RunTest.bat a script for running tests under Windows
653 nigel 77 Philip Hazel
654     Email local part: ph10
655     Email domain: cam.ac.uk
656 ph10 109 Last updated: March 2007


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