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Sign In Required Please sign in to use Codespaces. Launching Xcode If nothing happens, download Xcode and try again. Launching Visual Studio Code Your codespace will open once ready. Latest commit. Git stats 6 commits. Failed to load latest commit information. View code. The old libraries now called PCRE1 are now at end of life, and 8.

New projects are advised to use the new PCRE2 libraries. There are three sets of functions, one for the 8-bit library, which processes strings of bytes, one for the bit library, which processes strings of bit values, and one for the bit library, which processes strings of bit values. The distribution also contains a set of C wrapper functions again, just for the 8-bit library that are based on the POSIX regular expression API see the pcreposix man page. These end up in the library called libpcreposix.

This has the effect of renaming the functions so that the names no longer clash. Of course, you have to do the same thing for your applications, or write them using the new names. The one that is just called “pcre” lists all the others. In addition to these man pages, the PCRE documentation is supplied in two other forms: 1. The first of these is a concatenation of the text forms of all the section 3 man pages except the listing of pcredemo.

The other two are the text forms of the section 1 man pages for the pcregrep and pcretest commands. These text forms are provided for ease of scanning with text editors or similar tools. A set of files containing all the documentation in HTML form, hyperlinked in various ways, and rooted in a file called index.

These can be found in the Contrib directory of the FTP site see next section. Some are complete in themselves; others are pointers to URLs containing relevant files. Some of this material is likely to be well out-of-date. Nowadays there is more Windows support in the standard distribution, so these contibutions have been archived. This creates Makefiles, solution files, etc.

PCRE has been compiled on many different operating systems. Building PCRE without using autotools The use of autotools in particular, libtool is problematic in some environments, even some that are Unix or Unix-like.

The following instructions assume the use of the widely used “configure; make; make install” autotools process.

To build PCRE on system that supports autotools, first run the “configure” command from the PCRE distribution directory, with your current directory set to the directory where you want the files to be created.

Most commonly, people build PCRE within its own distribution directory, and in this case, on many systems, just running “. However, the usual methods of changing standard defaults are available. If you want to build in a different directory, just run “configure” with that directory as current. There are some optional features that can be included or omitted from the PCRE library.

They are also documented in the pcrebuild man page. By default, both shared and static libraries are built. You can change this by adding one of these options to the “configure” command: –disable-shared –disable-static See also “Shared libraries on Unix-like systems” below.

By default, only the 8-bit library is built. If you add –enable-pcre16 to the “configure” command, the bit library is also built.

If you add –enable-pcre32 to the “configure” command, the bit library is also built. If you want only the bit or bit library, use –disable-pcre8 to disable building the 8-bit library. If you want to include support for just-in-time compiling, which can give large performance improvements on certain platforms, add –enable-jit to the “configure” command. This support is available only for certain hardware architectures.

If you try to enable it on an unsupported architecture, there will be a compile time error. When JIT support is enabled, pcregrep automatically makes use of it, unless you add –disable-pcregrep-jit to the “configure” command.

If you want to make use of the support for UTF-8 Unicode character strings in the 8-bit library, or UTF Unicode character strings in the bit library, or UTF Unicode character strings in the bit library, you must add –enable-utf to the “configure” command. Even when –enable-utf is included, the use of a UTF encoding still has to be enabled by an option at run time. It is not possible to use both –enable-utf and –enable-ebcdic at the same time.

However, the option –enable-utf8 is retained for backwards compatibility with earlier releases that did not support bit or bit character strings.

It is synonymous with –enable-utf. It is not possible to configure one library with UTF support and the other without in the same configuration.

This adds about 30K to the size of the library in the form of a property table ; only the basic two-letter properties such as Lu are supported. Whatever you specify at build time is the default; the caller of PCRE can change the selection at run time.

The default newline indicator is a single LF character the Unix standard. You can specify the default newline indicator by adding –enable-newline-is-cr or –enable-newline-is-lf or –enable-newline-is-crlf or –enable-newline-is-anycrlf or –enable-newline-is-any to the “configure” command, respectively. If you specify –enable-newline-is-cr or –enable-newline-is-crlf, some of the standard tests will fail, because the lines in the test files end with LF.

Even if the files are edited to change the line endings, there are likely to be some failures. With –enable-newline-is-anycrlf or –enable-newline-is-any, many tests should succeed, but there may be some failures. This is independent of the option specifying what PCRE considers to be the end of a line see above. PCRE has a counter that limits the depth of nesting of parentheses in a pattern. This limits the amount of system stack that a pattern uses when it is compiled. PCRE has a counter that can be set to limit the amount of resources it uses when matching a pattern.

If the limit is exceeded during a match, the match fails. The default is ten million. There is more discussion on the pcreapi man page. There is a separate counter that limits the depth of recursive function calls during a matching process.

This also has a default of ten million, which is essentially “unlimited”. There is a discussion about stack sizes in the pcrestack man page. The default maximum compiled pattern size is around 64K.

In the 8-bit library, PCRE then uses three bytes instead of two for offsets to different parts of the compiled pattern. Increasing the internal link size reduces performance. In the bit library, the only supported link size is 4. To build PCRE like this, use –disable-stack-for-recursion on the “configure” command.

PCRE runs more slowly in this mode, but it may be necessary in environments with limited stack sizes. For speed, PCRE uses four tables for manipulating and identifying characters whose code point values are less than If you specify –enable-rebuild-chartables a program called dftables is compiled and run in the default C locale when you obey “make”. See “Character tables” below for further information. In environments where valgrind is installed, if you specify –enable-valgrind PCRE will use valgrind annotations to mark certain memory regions as unaddressable.

This allows it to detect invalid memory accesses, and is mostly useful for debugging PCRE itself. In environments where the gcc compiler is used and lcov version 1. The report is generated by running “make coverage”. If ccache is installed on your system, it must be disabled when building PCRE for coverage reporting. There is more information about coverage reporting in the “pcrebuild” documentation.

The pcregrep program currently supports only 8-bit data files, and so requires the 8-bit PCRE library. The default is It is possible to compile pcretest so that it links with the libreadline or libedit libraries, by specifying, respectively, –enable-pcretest-libreadline or –enable-pcretest-libedit If this is done, when pcretest’s input is from a terminal, it reads it using the readline function.

This provides line-editing and history facilities. Note that libreadline is GPL-licenced, so if you distribute a binary of pcretest linked in this way, there may be licensing issues. These can be avoided by linking with libedit which has a BSD licence instead. Enabling libreadline causes the -lreadline option to be added to the pcretest build.

In many operating environments with a sytem-installed readline library this is sufficient. However, in some environments e. This is because, to quote the readline INSTALL, “Readline uses the termcap functions, but does not link with the termcap or curses library itself, allowing applications which link with readline the to choose an appropriate library. The “configure” script builds the following files for the basic C library:.

Makefile the makefile that builds the library. If you use “configure” or CMake, the. Once “configure” has run, you can run “make”. The PCRE library is free, even for building proprietary software. There are two major versions of the PCRE library. The current version, PCRE2, released in , is now at version The older, but still widely deployed PCRE library, originally released in , is at version 8.

This version of PCRE is now at end of life, and is no longer being actively maintained. Version 8.

 
 

Pcre-8.31.tar.bz2 download

 
WebGitHub: Where the world builds software · GitHub. WebThe contents of this README file are: The PCRE APIs Documentation for PCRE Contributions by users of PCRE Building PCRE on non-Unix-like systems Building PCRE . WebDownload (HTTP): replace.me Download (FTP): ftp://replace.me Download MD5 sum: .

 

exim-pcre安装包下载_开源镜像站-阿里云.Pcre-8.31.tar.bz2 download

 
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