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| author |   hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 03:10:21 -0500 |
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| committer | hongbotian <hongbo.tianhongbo@huawei.com> | 2015-11-30 03:10:21 -0500 |
| commit | c0b7206652b2852bc574694e7ba07ba1c2acdc00 (patch) | |
| tree | 5cb95cb0e19e03610525903df46279df2c3b7eb1 /rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html | |
| parent | b6d3d6e668b793220f2d3af1bc3e828553dc3fe6 (diff) | |
delete app
Change-Id: Id4c572809969ebe89e946e88063eaed262cff3f2
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html | 191 |
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diff --git a/rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html b/rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html deleted file mode 100644 index 9c894784..00000000 --- a/rubbos/app/httpd-2.0.64/srclib/pcre/doc/pcreposix.html +++ /dev/null @@ -1,191 +0,0 @@ -<HTML> -<HEAD> -<TITLE>pcreposix specification</TITLE> -</HEAD> -<body bgcolor="#FFFFFF" text="#00005A"> -<H1>pcreposix specification</H1> -This HTML document has been generated automatically from the original man page. -If there is any nonsense in it, please consult the man page in case the -conversion went wrong. -<UL> -<LI><A NAME="TOC1" HREF="#SEC1">NAME</A> -<LI><A NAME="TOC2" HREF="#SEC2">SYNOPSIS</A> -<LI><A NAME="TOC3" HREF="#SEC3">DESCRIPTION</A> -<LI><A NAME="TOC4" HREF="#SEC4">COMPILING A PATTERN</A> -<LI><A NAME="TOC5" HREF="#SEC5">MATCHING A PATTERN</A> -<LI><A NAME="TOC6" HREF="#SEC6">ERROR MESSAGES</A> -<LI><A NAME="TOC7" HREF="#SEC7">STORAGE</A> -<LI><A NAME="TOC8" HREF="#SEC8">AUTHOR</A> -</UL> -<LI><A NAME="SEC1" HREF="#TOC1">NAME</A> -<P> -pcreposix - POSIX API for Perl-compatible regular expressions. -</P> -<LI><A NAME="SEC2" HREF="#TOC1">SYNOPSIS</A> -<P> -<B>#include <pcreposix.h></B> -</P> -<P> -<B>int regcomp(regex_t *<I>preg</I>, const char *<I>pattern</I>,</B> -<B>int <I>cflags</I>);</B> -</P> -<P> -<B>int regexec(regex_t *<I>preg</I>, const char *<I>string</I>,</B> -<B>size_t <I>nmatch</I>, regmatch_t <I>pmatch</I>[], int <I>eflags</I>);</B> -</P> -<P> -<B>size_t regerror(int <I>errcode</I>, const regex_t *<I>preg</I>,</B> -<B>char *<I>errbuf</I>, size_t <I>errbuf_size</I>);</B> -</P> -<P> -<B>void regfree(regex_t *<I>preg</I>);</B> -</P> -<LI><A NAME="SEC3" HREF="#TOC1">DESCRIPTION</A> -<P> -This set of functions provides a POSIX-style API to the PCRE regular expression -package. See the <B>pcre</B> documentation for a description of the native API, -which contains additional functionality. -</P> -<P> -The functions described here are just wrapper functions that ultimately call -the native API. Their prototypes are defined in the <B>pcreposix.h</B> header -file, and on Unix systems the library itself is called <B>pcreposix.a</B>, so -can be accessed by adding <B>-lpcreposix</B> to the command for linking an -application which uses them. Because the POSIX functions call the native ones, -it is also necessary to add \fR-lpcre\fR. -</P> -<P> -I have implemented only those option bits that can be reasonably mapped to PCRE -native options. In addition, the options REG_EXTENDED and REG_NOSUB are defined -with the value zero. They have no effect, but since programs that are written -to the POSIX interface often use them, this makes it easier to slot in PCRE as -a replacement library. Other POSIX options are not even defined. -</P> -<P> -When PCRE is called via these functions, it is only the API that is POSIX-like -in style. The syntax and semantics of the regular expressions themselves are -still those of Perl, subject to the setting of various PCRE options, as -described below. -</P> -<P> -The header for these functions is supplied as <B>pcreposix.h</B> to avoid any -potential clash with other POSIX libraries. It can, of course, be renamed or -aliased as <B>regex.h</B>, which is the "correct" name. It provides two -structure types, <I>regex_t</I> for compiled internal forms, and -<I>regmatch_t</I> for returning captured substrings. It also defines some -constants whose names start with "REG_"; these are used for setting options and -identifying error codes. -</P> -<LI><A NAME="SEC4" HREF="#TOC1">COMPILING A PATTERN</A> -<P> -The function <B>regcomp()</B> is called to compile a pattern into an -internal form. The pattern is a C string terminated by a binary zero, and -is passed in the argument <I>pattern</I>. The <I>preg</I> argument is a pointer -to a regex_t structure which is used as a base for storing information about -the compiled expression. -</P> -<P> -The argument <I>cflags</I> is either zero, or contains one or more of the bits -defined by the following macros: -</P> -<P> -<PRE> - REG_ICASE -</PRE> -</P> -<P> -The PCRE_CASELESS option is set when the expression is passed for compilation -to the native function. -</P> -<P> -<PRE> - REG_NEWLINE -</PRE> -</P> -<P> -The PCRE_MULTILINE option is set when the expression is passed for compilation -to the native function. -</P> -<P> -In the absence of these flags, no options are passed to the native function. -This means the the regex is compiled with PCRE default semantics. In -particular, the way it handles newline characters in the subject string is the -Perl way, not the POSIX way. Note that setting PCRE_MULTILINE has only -<I>some</I> of the effects specified for REG_NEWLINE. It does not affect the way -newlines are matched by . (they aren't) or a negative class such as [^a] (they -are). -</P> -<P> -The yield of <B>regcomp()</B> is zero on success, and non-zero otherwise. The -<I>preg</I> structure is filled in on success, and one member of the structure -is publicized: <I>re_nsub</I> contains the number of capturing subpatterns in -the regular expression. Various error codes are defined in the header file. -</P> -<LI><A NAME="SEC5" HREF="#TOC1">MATCHING A PATTERN</A> -<P> -The function <B>regexec()</B> is called to match a pre-compiled pattern -<I>preg</I> against a given <I>string</I>, which is terminated by a zero byte, -subject to the options in <I>eflags</I>. These can be: -</P> -<P> -<PRE> - REG_NOTBOL -</PRE> -</P> -<P> -The PCRE_NOTBOL option is set when calling the underlying PCRE matching -function. -</P> -<P> -<PRE> - REG_NOTEOL -</PRE> -</P> -<P> -The PCRE_NOTEOL option is set when calling the underlying PCRE matching -function. -</P> -<P> -The portion of the string that was matched, and also any captured substrings, -are returned via the <I>pmatch</I> argument, which points to an array of -<I>nmatch</I> structures of type <I>regmatch_t</I>, containing the members -<I>rm_so</I> and <I>rm_eo</I>. These contain the offset to the first character of -each substring and the offset to the first character after the end of each -substring, respectively. The 0th element of the vector relates to the entire -portion of <I>string</I> that was matched; subsequent elements relate to the -capturing subpatterns of the regular expression. Unused entries in the array -have both structure members set to -1. -</P> -<P> -A successful match yields a zero return; various error codes are defined in the -header file, of which REG_NOMATCH is the "expected" failure code. -</P> -<LI><A NAME="SEC6" HREF="#TOC1">ERROR MESSAGES</A> -<P> -The <B>regerror()</B> function maps a non-zero errorcode from either -<B>regcomp</B> or <B>regexec</B> to a printable message. If <I>preg</I> is not -NULL, the error should have arisen from the use of that structure. A message -terminated by a binary zero is placed in <I>errbuf</I>. The length of the -message, including the zero, is limited to <I>errbuf_size</I>. The yield of the -function is the size of buffer needed to hold the whole message. -</P> -<LI><A NAME="SEC7" HREF="#TOC1">STORAGE</A> -<P> -Compiling a regular expression causes memory to be allocated and associated -with the <I>preg</I> structure. The function <B>regfree()</B> frees all such -memory, after which <I>preg</I> may no longer be used as a compiled expression. -</P> -<LI><A NAME="SEC8" HREF="#TOC1">AUTHOR</A> -<P> -Philip Hazel <ph10@cam.ac.uk> -<BR> -University Computing Service, -<BR> -New Museums Site, -<BR> -Cambridge CB2 3QG, England. -<BR> -Phone: +44 1223 334714 -</P> -<P> -Copyright (c) 1997-2000 University of Cambridge. |