本文主要是介绍C语言的一个正则表达式pcre，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1. 简介
在C/C++中，一个比较好的正则表达式是pcre，被很多工具（包括一些商用工具）使用。
2. 源码下载&安装
2.1 下载
可以从官网http://www.pcre.org/下载，为方便学习，已放在这里http://download.csdn.net/detail/u013344915/7793027。
2.2 Windows上的安装过程
参考：Windows上面编译pcre的步骤
2.3 Linux上面的安装过程
在Linux下面，就是执行典型的3个命令即可：
- ./configure
- make
- sudo make install //需要root权限，所以前面加了sudo
最后会安装在/usr/local/include,lib等目录中。——本文最后附上整个安装的日志。
当然，不一定要把pcre安装到/usr/local目录，可以自己编译一个lib。在pcre文档中有这方面的介绍，后面有空再补充这一块。
3. 示例
在pcre源码中，提供了一个示例代码，即pcredemo.c。但这个仍然有点复杂，所以参考这个文件，下面给出一个更简单的例子。
3.1 只匹配一次
从日期中提取出年月日：比如从"2014-08-20"中提取出年月日三个信息，即2014, 08, 20。我们用pcre来实现这个功能。
代码如下：
/*gcc -Wall test-pcre.c -lpcre -o testpcreorgcc -Wall test-pcre.c -I/usr/local/include -L/usr/local/lib -lpcre -o testpcre*/#include <stdio.h>
#include <string.h>
#include <pcre.h>#define OVECCOUNT 30 /* should be a multiple of 3 */int main(int argc, char **argv) {pcre *re;const char *error;char *pattern;char *date;int erroffset;int ovector[OVECCOUNT];int subject_length;int rc, i;pattern = "(\\d+)-(\\d+)-(\\d+)";date = "2014-08-20";subject_length = (int) strlen(date);/************************************************************************** Now we are going to compile the regular expression pattern, and handle ** and errors that are detected. **************************************************************************/re = pcre_compile(pattern, /* the pattern */0, /* default options */&error, /* for error message */&erroffset, /* for error offset */NULL); /* use default character tables *//* Compilation failed: print the error message and exit */if (re == NULL) {printf("PCRE compilation failed at offset %d: %s\n", erroffset, error);return 1;}/************************************************************************** If the compilation succeeded, we call PCRE again, in order to do a ** pattern match against the subject string. This does just ONE match. If ** further matching is needed, it will be done below. **************************************************************************/rc = pcre_exec(re, /* the compiled pattern */NULL, /* no extra data - we didn't study the pattern */date, /* the subject string */subject_length, /* the length of the subject */0, /* start at offset 0 in the subject */0, /* default options */ovector, /* output vector for substring information */OVECCOUNT); /* number of elements in the output vector *//* Matching failed: handle error cases */if (rc < 0) {switch (rc) {case PCRE_ERROR_NOMATCH:printf("No match\n");break;/*Handle other special cases if you like*/default:printf("Matching error %d\n", rc);break;}pcre_free(re); /* Release memory used for the compiled pattern */return 1;}/* Match succeded */printf("\nMatch succeeded at offset %d\n", ovector[0]);/************************************************************************** We have found the first match within the subject string. If the output ** vector wasn't big enough, say so. Then output any substrings that were ** captured. **************************************************************************//* The output vector wasn't big enough */if (rc == 0) {rc = OVECCOUNT / 3;printf("ovector only has room for %d captured substrings\n", rc - 1);}/* Show substrings stored in the output vector by number. Obviously, in a realapplication you might want to do things other than print them. */for (i = 0; i < rc; i++) {char *substring_start = date + ovector[2 * i];int substring_length = ovector[2 * i + 1] - ovector[2 * i];printf("%2d: %.*s\n", i, substring_length, substring_start);}printf("\n");pcre_free(re); /* Release memory used for the compiled pattern */return 0;
}
运行结果：
flying-bird@flyingbird:~/workspace/StudentExample/src$ gcc -Wall test-pcre.c -lpcre -o testpcre
flying-bird@flyingbird:~/workspace/StudentExample/src$ ./testpcre
./testpcre: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory
flying-bird@flyingbird:~/workspace/StudentExample/src$ ll /usr/local/lib/libpcre.so.1
lrwxrwxrwx 1 root root 16 8月 20 20:33 /usr/local/lib/libpcre.so.1 -> libpcre.so.1.2.3*
flying-bird@flyingbird:~/workspace/StudentExample/src$ sudo ldconfig
[sudo] password for flying-bird:
flying-bird@flyingbird:~/workspace/StudentExample/src$ ./testpcre Match succeeded at offset 00: 2014-08-201: 20142: 083: 20flying-bird@flyingbird:~/workspace/StudentExample/src$
3.2 多次匹配
上面的例子是一次匹配，且一次匹配了多个子串。这里换一种匹配方式，即多次匹配。这要用到pcre_exec的start_offset参数，指定从指定的字符串的哪个位置开始匹配。
为此，现在把匹配串做一点修改，不再匹配年月日，而是匹配连续的数字串。因此，希望匹配出年，然后匹配出月，以及日。通过上面的例子，一次pcre_exec()只能匹配出一个串，所以要修改代码，有如下几点：
- 增加一个 int subject_offset，说明从字符串的哪个位置开始匹配；
- 加了一个for循环，持续地匹配，直到找不到匹配的串为止；
- for循环内部，每次匹配到之后，就调整subject_offset。
// testpcre.cpp : Defines the entry point for the console application.
///*gcc -Wall test-pcre.c -lpcre -o testpcreorgcc -Wall test-pcre.c -I/usr/local/include -L/usr/local/lib -lpcre -o testpcre*/#include <stdio.h>
#include <string.h>
#include "pcre.h"//#define PCRE_STATIC#define OVECCOUNT 30 /* should be a multiple of 3 */int main(int argc, char **argv) {pcre *re;const char *error;char *pattern;char *date;int erroffset;int ovector[OVECCOUNT];int subject_length;int rc, i;int subject_offset = 0;pattern = "(\\d+)";date = "2014-08-20";subject_length = (int) strlen(date);/************************************************************************** Now we are going to compile the regular expression pattern, and handle ** and errors that are detected. **************************************************************************/re = pcre_compile(pattern, /* the pattern */0, /* default options */&error, /* for error message */&erroffset, /* for error offset */NULL); /* use default character tables *//* Compilation failed: print the error message and exit */if (re == NULL) {printf("PCRE compilation failed at offset %d: %s\n", erroffset, error);return 1;}/************************************************************************** If the compilation succeeded, we call PCRE again, in order to do a ** pattern match against the subject string. This does just ONE match. If ** further matching is needed, it will be done below. **************************************************************************/for (;;) {rc = pcre_exec(re, /* the compiled pattern */NULL, /* no extra data - we didn't study the pattern */date, /* the subject string */subject_length, /* the length of the subject */subject_offset, /* start at offset 0 in the subject */0, /* default options */ovector, /* output vector for substring information */OVECCOUNT); /* number of elements in the output vector *//* Matching failed: handle error cases */if (rc < 0) {switch (rc) {case PCRE_ERROR_NOMATCH:printf("No match\n");break;/*Handle other special cases if you like*/default:printf("Matching error %d\n", rc);break;}pcre_free(re); /* Release memory used for the compiled pattern */return 1;}/* Match succeded */printf("\nMatch succeeded at offset %d\n", ovector[0]);/************************************************************************** We have found the first match within the subject string. If the output ** vector wasn't big enough, say so. Then output any substrings that were ** captured. **************************************************************************//* The output vector wasn't big enough */if (rc == 0) {rc = OVECCOUNT / 3;printf("ovector only has room for %d captured substrings\n", rc - 1);}/* Show substrings stored in the output vector by number. Obviously, in a realapplication you might want to do things other than print them. */for (i = 0; i < rc; i++) {char *substring_start = date + ovector[2 * i];int substring_length = ovector[2 * i + 1] - ovector[2 * i];printf("%2d: %.*s\n", i, substring_length, substring_start);}printf("\n");subject_offset = ovector[1];}pcre_free(re); /* Release memory used for the compiled pattern */return 0;
}
4. Ubuntu安装日志
flying-bird@flyingbird:~/software/pcre-8.35$ ll ./configure
-rwxr-xr-x 1 flying-bird flying-bird 677106 4月 4 14:39 ./configure*
flying-bird@flyingbird:~/software/pcre-8.35$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking for style of include used by make... GNU
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking for ar... ar
checking the archiver (ar) interface... ar
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking whether gcc understands -c and -o together... (cached) yes
checking dependency style of gcc... (cached) gcc3
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for int64_t... yes
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert i686-pc-linux-gnu file names to i686-pc-linux-gnu format... func_convert_file_noop
checking how to convert i686-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... dlltool
checking how to associate runtime and link libraries... printf %s\n
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for mt... mt
checking if mt is a manifest tool... no
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking how to run the C++ preprocessor... g++ -E
checking for ld used by g++... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking for g++ option to produce PIC... -fPIC -DPIC
checking if g++ PIC flag -fPIC -DPIC works... yes
checking if g++ static flag -static works... yes
checking if g++ supports -c -o file.o... yes
checking if g++ supports -c -o file.o... (cached) yes
checking whether the g++ linker (/usr/bin/ld) supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether ln -s works... yes
checking whether the -Werror option is usable... yes
checking for simple visibility declarations... yes
checking for ANSI C header files... (cached) yes
checking limits.h usability... yes
checking limits.h presence... yes
checking for limits.h... yes
checking for sys/types.h... (cached) yes
checking for sys/stat.h... (cached) yes
checking dirent.h usability... yes
checking dirent.h presence... yes
checking for dirent.h... yes
checking windows.h usability... no
checking windows.h presence... no
checking for windows.h... no
checking for alias support in the linker... no
checking for alias support in the linker... no
checking string usability... yes
checking string presence... yes
checking for string... yes
checking bits/type_traits.h usability... no
checking bits/type_traits.h presence... no
checking for bits/type_traits.h... no
checking type_traits.h usability... no
checking type_traits.h presence... no
checking for type_traits.h... no
checking for strtoq... yes
checking for long long... yes
checking for unsigned long long... yes
checking for an ANSI C-conforming const... yes
checking for size_t... yes
checking for bcopy... yes
checking for memmove... yes
checking for strerror... yes
checking zlib.h usability... no
checking zlib.h presence... no
checking for zlib.h... no
checking for gzopen in -lz... no
checking bzlib.h usability... no
checking bzlib.h presence... no
checking for bzlib.h... no
checking for libbz2... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating libpcre.pc
config.status: creating libpcre16.pc
config.status: creating libpcre32.pc
config.status: creating libpcreposix.pc
config.status: creating libpcrecpp.pc
config.status: creating pcre-config
config.status: creating pcre.h
config.status: creating pcre_stringpiece.h
config.status: creating pcrecpparg.h
config.status: creating config.h
config.status: executing depfiles commands
config.status: executing libtool commands
config.status: executing script-chmod commands
config.status: executing delete-old-chartables commandspcre-8.35 configuration summary:Install prefix .................. : /usr/localC preprocessor .................. : gcc -EC compiler ...................... : gccC++ preprocessor ................ : g++ -EC++ compiler .................... : g++Linker .......................... : /usr/bin/ldC preprocessor flags ............ : C compiler flags ................ : -g -O2 -fvisibility=hiddenC++ compiler flags .............. : -O2 -fvisibility=hidden -fvisibility-inlines-hiddenLinker flags .................... : Extra libraries ................. : Build 8 bit pcre library ........ : yesBuild 16 bit pcre library ....... : noBuild 32 bit pcre library ....... : noBuild C++ library ............... : yesEnable JIT compiling support .... : noEnable UTF-8/16/32 support ...... : noUnicode properties .............. : noNewline char/sequence ........... : lf\R matches only ANYCRLF ......... : noEBCDIC coding ................... : noEBCDIC code for NL .............. : n/aRebuild char tables ............. : noUse stack recursion ............. : yesPOSIX mem threshold ............. : 10Internal link size .............. : 2Nested parentheses limit ........ : 250Match limit ..................... : 10000000Match limit recursion ........... : MATCH_LIMITBuild shared libs ............... : yesBuild static libs ............... : yesUse JIT in pcregrep ............. : noBuffer size for pcregrep ........ : 20480Link pcregrep with libz ......... : noLink pcregrep with libbz2 ....... : noLink pcretest with libedit ...... : noLink pcretest with libreadline .. : noValgrind support ................ : noCode coverage ................... : noflying-bird@flyingbird:~/software/pcre-8.35$ make
rm -f pcre_chartables.c
ln -s ./pcre_chartables.c.dist pcre_chartables.c
make all-am
make[1]: Entering directory `/home/flying-bird/software/pcre-8.35'CC libpcre_la-pcre_byte_order.loCC libpcre_la-pcre_compile.loCC libpcre_la-pcre_config.loCC libpcre_la-pcre_dfa_exec.loCC libpcre_la-pcre_exec.loCC libpcre_la-pcre_fullinfo.loCC libpcre_la-pcre_get.loCC libpcre_la-pcre_globals.loCC libpcre_la-pcre_jit_compile.loCC libpcre_la-pcre_maketables.loCC libpcre_la-pcre_newline.loCC libpcre_la-pcre_ord2utf8.loCC libpcre_la-pcre_refcount.loCC libpcre_la-pcre_string_utils.loCC libpcre_la-pcre_study.loCC libpcre_la-pcre_tables.loCC libpcre_la-pcre_ucd.loCC libpcre_la-pcre_valid_utf8.loCC libpcre_la-pcre_version.loCC libpcre_la-pcre_xclass.loCC libpcre_la-pcre_chartables.loCCLD libpcre.laCC libpcreposix_la-pcreposix.loCCLD libpcreposix.laCXX libpcrecpp_la-pcrecpp.loCXX libpcrecpp_la-pcre_scanner.loCXX libpcrecpp_la-pcre_stringpiece.loCXXLD libpcrecpp.laCC pcretest-pcretest.oCC pcretest-pcre_printint.oCCLD pcretestCC pcregrep-pcregrep.oCCLD pcregrepCXX pcrecpp_unittest-pcrecpp_unittest.oCXXLD pcrecpp_unittestCXX pcre_scanner_unittest-pcre_scanner_unittest.oCXXLD pcre_scanner_unittestCXX pcre_stringpiece_unittest-pcre_stringpiece_unittest.oCXXLD pcre_stringpiece_unittest
make[1]: Leaving directory `/home/flying-bird/software/pcre-8.35'
flying-bird@flyingbird:~/software/pcre-8.35$ sudo make install
[sudo] password for flying-bird:
make install-am
make[1]: Entering directory `/home/flying-bird/software/pcre-8.35'
make[2]: Entering directory `/home/flying-bird/software/pcre-8.35'/bin/mkdir -p '/usr/local/lib'/bin/bash ./libtool --mode=install /usr/bin/install -c libpcre.la libpcreposix.la libpcrecpp.la '/usr/local/lib'
libtool: install: /usr/bin/install -c .libs/libpcre.so.1.2.3 /usr/local/lib/libpcre.so.1.2.3
libtool: install: (cd /usr/local/lib && { ln -s -f libpcre.so.1.2.3 libpcre.so.1 || { rm -f libpcre.so.1 && ln -s libpcre.so.1.2.3 libpcre.so.1; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libpcre.so.1.2.3 libpcre.so || { rm -f libpcre.so && ln -s libpcre.so.1.2.3 libpcre.so; }; })
libtool: install: /usr/bin/install -c .libs/libpcre.lai /usr/local/lib/libpcre.la
libtool: install: warning: relinking `libpcreposix.la'
libtool: install: (cd /home/flying-bird/software/pcre-8.35; /bin/bash /home/flying-bird/software/pcre-8.35/libtool --silent --tag CC --mode=relink gcc -fvisibility=hidden -g -O2 -version-info 0:2:0 -o libpcreposix.la -rpath /usr/local/lib libpcreposix_la-pcreposix.lo libpcre.la )
libtool: install: /usr/bin/install -c .libs/libpcreposix.so.0.0.2T /usr/local/lib/libpcreposix.so.0.0.2
libtool: install: (cd /usr/local/lib && { ln -s -f libpcreposix.so.0.0.2 libpcreposix.so.0 || { rm -f libpcreposix.so.0 && ln -s libpcreposix.so.0.0.2 libpcreposix.so.0; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libpcreposix.so.0.0.2 libpcreposix.so || { rm -f libpcreposix.so && ln -s libpcreposix.so.0.0.2 libpcreposix.so; }; })
libtool: install: /usr/bin/install -c .libs/libpcreposix.lai /usr/local/lib/libpcreposix.la
libtool: install: warning: relinking `libpcrecpp.la'
libtool: install: (cd /home/flying-bird/software/pcre-8.35; /bin/bash /home/flying-bird/software/pcre-8.35/libtool --silent --tag CXX --mode=relink g++ -fvisibility=hidden -fvisibility-inlines-hidden -O2 -version-info 0:0:0 -o libpcrecpp.la -rpath /usr/local/lib libpcrecpp_la-pcrecpp.lo libpcrecpp_la-pcre_scanner.lo libpcrecpp_la-pcre_stringpiece.lo libpcre.la )
libtool: install: /usr/bin/install -c .libs/libpcrecpp.so.0.0.0T /usr/local/lib/libpcrecpp.so.0.0.0
libtool: install: (cd /usr/local/lib && { ln -s -f libpcrecpp.so.0.0.0 libpcrecpp.so.0 || { rm -f libpcrecpp.so.0 && ln -s libpcrecpp.so.0.0.0 libpcrecpp.so.0; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libpcrecpp.so.0.0.0 libpcrecpp.so || { rm -f libpcrecpp.so && ln -s libpcrecpp.so.0.0.0 libpcrecpp.so; }; })
libtool: install: /usr/bin/install -c .libs/libpcrecpp.lai /usr/local/lib/libpcrecpp.la
libtool: install: /usr/bin/install -c .libs/libpcre.a /usr/local/lib/libpcre.a
libtool: install: chmod 644 /usr/local/lib/libpcre.a
libtool: install: ranlib /usr/local/lib/libpcre.a
libtool: install: /usr/bin/install -c .libs/libpcreposix.a /usr/local/lib/libpcreposix.a
libtool: install: chmod 644 /usr/local/lib/libpcreposix.a
libtool: install: ranlib /usr/local/lib/libpcreposix.a
libtool: install: /usr/bin/install -c .libs/libpcrecpp.a /usr/local/lib/libpcrecpp.a
libtool: install: chmod 644 /usr/local/lib/libpcrecpp.a
libtool: install: ranlib /usr/local/lib/libpcrecpp.a
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/sbin" ldconfig -n /usr/local/lib
----------------------------------------------------------------------
Libraries have been installed in:/usr/local/libIf you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:- add LIBDIR to the `LD_LIBRARY_PATH' environment variableduring execution- add LIBDIR to the `LD_RUN_PATH' environment variableduring linking- use the `-Wl,-rpath -Wl,LIBDIR' linker flag- have your system administrator add LIBDIR to `/etc/ld.so.conf'See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------/bin/mkdir -p '/usr/local/bin'/bin/bash ./libtool --mode=install /usr/bin/install -c pcretest pcregrep '/usr/local/bin'
libtool: install: /usr/bin/install -c .libs/pcretest /usr/local/bin/pcretest
libtool: install: /usr/bin/install -c .libs/pcregrep /usr/local/bin/pcregrep/bin/mkdir -p '/usr/local/bin'/usr/bin/install -c pcre-config '/usr/local/bin'/bin/mkdir -p '/usr/local/share/doc/pcre'/usr/bin/install -c -m 644 doc/pcre.txt doc/pcre-config.txt doc/pcregrep.txt doc/pcretest.txt AUTHORS COPYING ChangeLog LICENCE NEWS README '/usr/local/share/doc/pcre'/bin/mkdir -p '/usr/local/share/doc/pcre/html'/usr/bin/install -c -m 644 doc/html/NON-AUTOTOOLS-BUILD.txt doc/html/README.txt doc/html/index.html doc/html/pcre-config.html doc/html/pcre.html doc/html/pcre16.html doc/html/pcre32.html doc/html/pcre_assign_jit_stack.html doc/html/pcre_compile.html doc/html/pcre_compile2.html doc/html/pcre_config.html doc/html/pcre_copy_named_substring.html doc/html/pcre_copy_substring.html doc/html/pcre_dfa_exec.html doc/html/pcre_exec.html doc/html/pcre_free_study.html doc/html/pcre_free_substring.html doc/html/pcre_free_substring_list.html doc/html/pcre_fullinfo.html doc/html/pcre_get_named_substring.html doc/html/pcre_get_stringnumber.html doc/html/pcre_get_stringtable_entries.html doc/html/pcre_get_substring.html doc/html/pcre_get_substring_list.html doc/html/pcre_jit_exec.html doc/html/pcre_jit_stack_alloc.html doc/html/pcre_jit_stack_free.html doc/html/pcre_maketables.html doc/html/pcre_pattern_to_host_byte_order.html doc/html/pcre_refcount.html doc/html/pcre_study.html doc/html/pcre_utf16_to_host_byte_order.html doc/html/pcre_utf32_to_host_byte_order.html doc/html/pcre_version.html doc/html/pcreapi.html doc/html/pcrebuild.html doc/html/pcrecallout.html doc/html/pcrecompat.html doc/html/pcredemo.html doc/html/pcregrep.html '/usr/local/share/doc/pcre/html'/usr/bin/install -c -m 644 doc/html/pcrejit.html doc/html/pcrelimits.html doc/html/pcrematching.html doc/html/pcrepartial.html doc/html/pcrepattern.html doc/html/pcreperform.html doc/html/pcreposix.html doc/html/pcreprecompile.html doc/html/pcresample.html doc/html/pcrestack.html doc/html/pcresyntax.html doc/html/pcretest.html doc/html/pcreunicode.html '/usr/local/share/doc/pcre/html'/bin/mkdir -p '/usr/local/share/doc/pcre/html'/usr/bin/install -c -m 644 doc/html/pcrecpp.html '/usr/local/share/doc/pcre/html'/bin/mkdir -p '/usr/local/include'/usr/bin/install -c -m 644 pcreposix.h pcrecpp.h pcre_scanner.h '/usr/local/include'/bin/mkdir -p '/usr/local/share/man/man1'/usr/bin/install -c -m 644 doc/pcre-config.1 doc/pcregrep.1 doc/pcretest.1 '/usr/local/share/man/man1'/bin/mkdir -p '/usr/local/share/man/man3'/usr/bin/install -c -m 644 doc/pcre.3 doc/pcre16.3 doc/pcre32.3 doc/pcre_assign_jit_stack.3 doc/pcre_compile.3 doc/pcre_compile2.3 doc/pcre_config.3 doc/pcre_copy_named_substring.3 doc/pcre_copy_substring.3 doc/pcre_dfa_exec.3 doc/pcre_exec.3 doc/pcre_free_study.3 doc/pcre_free_substring.3 doc/pcre_free_substring_list.3 doc/pcre_fullinfo.3 doc/pcre_get_named_substring.3 doc/pcre_get_stringnumber.3 doc/pcre_get_stringtable_entries.3 doc/pcre_get_substring.3 doc/pcre_get_substring_list.3 doc/pcre_jit_exec.3 doc/pcre_jit_stack_alloc.3 doc/pcre_jit_stack_free.3 doc/pcre_maketables.3 doc/pcre_pattern_to_host_byte_order.3 doc/pcre_refcount.3 doc/pcre_study.3 doc/pcre_utf16_to_host_byte_order.3 doc/pcre_utf32_to_host_byte_order.3 doc/pcre_version.3 doc/pcreapi.3 doc/pcrebuild.3 doc/pcrecallout.3 doc/pcrecompat.3 doc/pcredemo.3 doc/pcrejit.3 doc/pcrelimits.3 doc/pcrematching.3 doc/pcrepartial.3 doc/pcrepattern.3 '/usr/local/share/man/man3'/usr/bin/install -c -m 644 doc/pcreperform.3 doc/pcreposix.3 doc/pcreprecompile.3 doc/pcresample.3 doc/pcrestack.3 doc/pcresyntax.3 doc/pcreunicode.3 doc/pcrecpp.3 '/usr/local/share/man/man3'/bin/mkdir -p '/usr/local/include'/usr/bin/install -c -m 644 pcre.h pcrecpparg.h pcre_stringpiece.h '/usr/local/include'/bin/mkdir -p '/usr/local/lib/pkgconfig'/usr/bin/install -c -m 644 libpcre.pc libpcreposix.pc libpcrecpp.pc '/usr/local/lib/pkgconfig'
make install-data-hook
make[3]: Entering directory `/home/flying-bird/software/pcre-8.35'
ln -sf pcre_assign_jit_stack.3 /usr/local/share/man/man3/pcre16_assign_jit_stack.3
ln -sf pcre_compile.3 /usr/local/share/man/man3/pcre16_compile.3
ln -sf pcre_compile2.3 /usr/local/share/man/man3/pcre16_compile2.3
ln -sf pcre_config.3 /usr/local/share/man/man3/pcre16_config.3
ln -sf pcre_copy_named_substring.3 /usr/local/share/man/man3/pcre16_copy_named_substring.3
ln -sf pcre_copy_substring.3 /usr/local/share/man/man3/pcre16_copy_substring.3
ln -sf pcre_dfa_exec.3 /usr/local/share/man/man3/pcre16_dfa_exec.3
ln -sf pcre_exec.3 /usr/local/share/man/man3/pcre16_exec.3
ln -sf pcre_free_study.3 /usr/local/share/man/man3/pcre16_free_study.3
ln -sf pcre_free_substring.3 /usr/local/share/man/man3/pcre16_free_substring.3
ln -sf pcre_free_substring_list.3 /usr/local/share/man/man3/pcre16_free_substring_list.3
ln -sf pcre_fullinfo.3 /usr/local/share/man/man3/pcre16_fullinfo.3
ln -sf pcre_get_named_substring.3 /usr/local/share/man/man3/pcre16_get_named_substring.3
ln -sf pcre_get_stringnumber.3 /usr/local/share/man/man3/pcre16_get_stringnumber.3
ln -sf pcre_get_stringtable_entries.3 /usr/local/share/man/man3/pcre16_get_stringtable_entries.3
ln -sf pcre_get_substring.3 /usr/local/share/man/man3/pcre16_get_substring.3
ln -sf pcre_get_substring_list.3 /usr/local/share/man/man3/pcre16_get_substring_list.3
ln -sf pcre_jit_exec.3 /usr/local/share/man/man3/pcre16_jit_exec.3
ln -sf pcre_jit_stack_alloc.3 /usr/local/share/man/man3/pcre16_jit_stack_alloc.3
ln -sf pcre_jit_stack_free.3 /usr/local/share/man/man3/pcre16_jit_stack_free.3
ln -sf pcre_maketables.3 /usr/local/share/man/man3/pcre16_maketables.3
ln -sf pcre_pattern_to_host_byte_order.3 /usr/local/share/man/man3/pcre16_pattern_to_host_byte_order.3
ln -sf pcre_refcount.3 /usr/local/share/man/man3/pcre16_refcount.3
ln -sf pcre_study.3 /usr/local/share/man/man3/pcre16_study.3
ln -sf pcre_utf16_to_host_byte_order.3 /usr/local/share/man/man3/pcre16_utf16_to_host_byte_order.3
ln -sf pcre_version.3 /usr/local/share/man/man3/pcre16_version.3
ln -sf pcre_assign_jit_stack.3 /usr/local/share/man/man3/pcre32_assign_jit_stack.3
ln -sf pcre_compile.3 /usr/local/share/man/man3/pcre32_compile.3
ln -sf pcre_compile2.3 /usr/local/share/man/man3/pcre32_compile2.3
ln -sf pcre_config.3 /usr/local/share/man/man3/pcre32_config.3
ln -sf pcre_copy_named_substring.3 /usr/local/share/man/man3/pcre32_copy_named_substring.3
ln -sf pcre_copy_substring.3 /usr/local/share/man/man3/pcre32_copy_substring.3
ln -sf pcre_dfa_exec.3 /usr/local/share/man/man3/pcre32_dfa_exec.3
ln -sf pcre_exec.3 /usr/local/share/man/man3/pcre32_exec.3
ln -sf pcre_free_study.3 /usr/local/share/man/man3/pcre32_free_study.3
ln -sf pcre_free_substring.3 /usr/local/share/man/man3/pcre32_free_substring.3
ln -sf pcre_free_substring_list.3 /usr/local/share/man/man3/pcre32_free_substring_list.3
ln -sf pcre_fullinfo.3 /usr/local/share/man/man3/pcre32_fullinfo.3
ln -sf pcre_get_named_substring.3 /usr/local/share/man/man3/pcre32_get_named_substring.3
ln -sf pcre_get_stringnumber.3 /usr/local/share/man/man3/pcre32_get_stringnumber.3
ln -sf pcre_get_stringtable_entries.3 /usr/local/share/man/man3/pcre32_get_stringtable_entries.3
ln -sf pcre_get_substring.3 /usr/local/share/man/man3/pcre32_get_substring.3
ln -sf pcre_get_substring_list.3 /usr/local/share/man/man3/pcre32_get_substring_list.3
ln -sf pcre_jit_exec.3 /usr/local/share/man/man3/pcre32_jit_exec.3
ln -sf pcre_jit_stack_alloc.3 /usr/local/share/man/man3/pcre32_jit_stack_alloc.3
ln -sf pcre_jit_stack_free.3 /usr/local/share/man/man3/pcre32_jit_stack_free.3
ln -sf pcre_maketables.3 /usr/local/share/man/man3/pcre32_maketables.3
ln -sf pcre_pattern_to_host_byte_order.3 /usr/local/share/man/man3/pcre32_pattern_to_host_byte_order.3
ln -sf pcre_refcount.3 /usr/local/share/man/man3/pcre32_refcount.3
ln -sf pcre_study.3 /usr/local/share/man/man3/pcre32_study.3
ln -sf pcre_utf32_to_host_byte_order.3 /usr/local/share/man/man3/pcre32_utf32_to_host_byte_order.3
ln -sf pcre_version.3 /usr/local/share/man/man3/pcre32_version.3
make[3]: Leaving directory `/home/flying-bird/software/pcre-8.35'
make[2]: Leaving directory `/home/flying-bird/software/pcre-8.35'
make[1]: Leaving directory `/home/flying-bird/software/pcre-8.35'
flying-bird@flyingbird:~/software/pcre-8.35$
flying-bird@flyingbird:~/software/pcre-8.35$
flying-bird@flyingbird:~/software/pcre-8.35$ cd /usr/local/include/
flying-bird@flyingbird:/usr/local/include$ ll
total 100
drwxr-xr-x 2 root root 4096 8月 20 20:33 ./
drwxr-xr-x 10 root root 4096 4月 24 2012 ../
-rw-r--r-- 1 root root 6783 8月 20 20:33 pcrecpparg.h
-rw-r--r-- 1 root root 26529 8月 20 20:33 pcrecpp.h
-rw-r--r-- 1 root root 31706 8月 20 20:33 pcre.h
-rw-r--r-- 1 root root 5452 8月 20 20:33 pcreposix.h
-rw-r--r-- 1 root root 6600 8月 20 20:33 pcre_scanner.h
-rw-r--r-- 1 root root 6253 8月 20 20:33 pcre_stringpiece.h
flying-bird@flyingbird:/usr/local/include$ cd ../lib
flying-bird@flyingbird:/usr/local/lib$ ll
total 1016
drwxr-xr-x 5 root root 4096 8月 20 20:33 ./
drwxr-xr-x 10 root root 4096 4月 24 2012 ../
-rw-r--r-- 1 root root 515794 8月 20 20:33 libpcre.a
-rw-r--r-- 1 root root 38886 8月 20 20:33 libpcrecpp.a
-rwxr-xr-x 1 root root 964 8月 20 20:33 libpcrecpp.la*
lrwxrwxrwx 1 root root 19 8月 20 20:33 libpcrecpp.so -> libpcrecpp.so.0.0.0*
lrwxrwxrwx 1 root root 19 8月 20 20:33 libpcrecpp.so.0 -> libpcrecpp.so.0.0.0*
-rwxr-xr-x 1 root root 44062 8月 20 20:33 libpcrecpp.so.0.0.0*
-rwxr-xr-x 1 root root 917 8月 20 20:33 libpcre.la*
-rw-r--r-- 1 root root 16064 8月 20 20:33 libpcreposix.a
-rwxr-xr-x 1 root root 978 8月 20 20:33 libpcreposix.la*
lrwxrwxrwx 1 root root 21 8月 20 20:33 libpcreposix.so -> libpcreposix.so.0.0.2*
lrwxrwxrwx 1 root root 21 8月 20 20:33 libpcreposix.so.0 -> libpcreposix.so.0.0.2*
-rwxr-xr-x 1 root root 20461 8月 20 20:33 libpcreposix.so.0.0.2*
lrwxrwxrwx 1 root root 16 8月 20 20:33 libpcre.so -> libpcre.so.1.2.3*
lrwxrwxrwx 1 root root 16 8月 20 20:33 libpcre.so.1 -> libpcre.so.1.2.3*
-rwxr-xr-x 1 root root 366755 8月 20 20:33 libpcre.so.1.2.3*
drwxr-xr-x 2 root root 4096 8月 20 20:33 pkgconfig/
drwxrwsr-x 4 root staff 4096 8月 13 22:19 python2.7/
drwxrwsr-x 3 root staff 4096 8月 13 22:19 python3.4/
flying-bird@flyingbird:/usr/local/lib$ cd ../bin
flying-bird@flyingbird:/usr/local/bin$ ll
total 284
drwxr-xr-x 2 root root 4096 8月 20 20:33 ./
drwxr-xr-x 10 root root 4096 4月 24 2012 ../
-rwxr-xr-x 1 root root 2363 8月 20 20:33 pcre-config*
-rwxr-xr-x 1 root root 89152 8月 20 20:33 pcregrep*
-rwxr-xr-x 1 root root 186890 8月 20 20:33 pcretest*
flying-bird@flyingbird:/usr/local/bin$ cd ../share/
ca-certificates/ doc/ fonts/ man/ sgml/ xml/
flying-bird@flyingbird:/usr/local/bin$ cd ../share/doc/
flying-bird@flyingbird:/usr/local/share/doc$ ll
total 12
drwxr-xr-x 3 root root 4096 8月 20 20:33 ./
drwxr-xr-x 8 root root 4096 8月 20 20:33 ../
drwxr-xr-x 3 root root 4096 8月 20 20:33 pcre/
flying-bird@flyingbird:/usr/local/share/doc$ cd pcre/
flying-bird@flyingbird:/usr/local/share/doc/pcre$ ll
total 956
drwxr-xr-x 3 root root 4096 8月 20 20:33 ./
drwxr-xr-x 3 root root 4096 8月 20 20:33 ../
-rw-r--r-- 1 root root 851 8月 20 20:33 AUTHORS
-rw-r--r-- 1 root root 264114 8月 20 20:33 ChangeLog
-rw-r--r-- 1 root root 95 8月 20 20:33 COPYING
drwxr-xr-x 2 root root 4096 8月 20 20:33 html/
-rw-r--r-- 1 root root 3099 8月 20 20:33 LICENCE
-rw-r--r-- 1 root root 27924 8月 20 20:33 NEWS
-rw-r--r-- 1 root root 3146 8月 20 20:33 pcre-config.txt
-rw-r--r-- 1 root root 42257 8月 20 20:33 pcregrep.txt
-rw-r--r-- 1 root root 54244 8月 20 20:33 pcretest.txt
-rw-r--r-- 1 root root 504077 8月 20 20:33 pcre.txt
-rw-r--r-- 1 root root 44896 8月 20 20:33 README
flying-bird@flyingbird:/usr/local/share/doc/pcre$
4. 正则表达式资料
在之前的python系列（此系列未完待续）中，有一篇介绍了正则表达式：Python入门教程-12 正则表达式 ，其中推荐了学习正则表达式的书籍。
这篇关于C语言的一个正则表达式pcre的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
