diff options
author | Ian Jackson <ijackson@chiark.greenend.org.uk> | 2016-07-13 21:24:43 +0100 |
---|---|---|
committer | Ian Jackson <ijackson@chiark.greenend.org.uk> | 2016-07-13 21:24:43 +0100 |
commit | cba4af1b7643b0da036ff78fd152f74a906c4e97 (patch) | |
tree | 84f90cc1a9542b2f374932b04ea0752eabbd3741 /doc/pcre_config.3 |
Commit upstream pcre-8.39.tar.bz2
Diffstat (limited to 'doc/pcre_config.3')
-rw-r--r-- | doc/pcre_config.3 | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/doc/pcre_config.3 b/doc/pcre_config.3 new file mode 100644 index 0000000..d14ffda --- /dev/null +++ b/doc/pcre_config.3 @@ -0,0 +1,79 @@ +.TH PCRE_CONFIG 3 "20 April 2014" "PCRE 8.36" +.SH NAME +PCRE - Perl-compatible regular expressions +.SH SYNOPSIS +.rs +.sp +.B #include <pcre.h> +.PP +.SM +.B int pcre_config(int \fIwhat\fP, void *\fIwhere\fP); +.PP +.B int pcre16_config(int \fIwhat\fP, void *\fIwhere\fP); +.PP +.B int pcre32_config(int \fIwhat\fP, void *\fIwhere\fP); +. +.SH DESCRIPTION +.rs +.sp +This function makes it possible for a client program to find out which optional +features are available in the version of the PCRE library it is using. The +arguments are as follows: +.sp + \fIwhat\fP A code specifying what information is required + \fIwhere\fP Points to where to put the data +.sp +The \fIwhere\fP argument must point to an integer variable, except for +PCRE_CONFIG_MATCH_LIMIT, PCRE_CONFIG_MATCH_LIMIT_RECURSION, and +PCRE_CONFIG_PARENS_LIMIT, when it must point to an unsigned long integer, +and for PCRE_CONFIG_JITTARGET, when it must point to a const char*. +The available codes are: +.sp + PCRE_CONFIG_JIT Availability of just-in-time compiler + support (1=yes 0=no) + PCRE_CONFIG_JITTARGET String containing information about the + target architecture for the JIT compiler, + or NULL if there is no JIT support + PCRE_CONFIG_LINK_SIZE Internal link size: 2, 3, or 4 + PCRE_CONFIG_PARENS_LIMIT Parentheses nesting limit + PCRE_CONFIG_MATCH_LIMIT Internal resource limit + PCRE_CONFIG_MATCH_LIMIT_RECURSION + Internal recursion depth limit + PCRE_CONFIG_NEWLINE Value of the default newline sequence: + 13 (0x000d) for CR + 10 (0x000a) for LF + 3338 (0x0d0a) for CRLF + -2 for ANYCRLF + -1 for ANY + PCRE_CONFIG_BSR Indicates what \eR matches by default: + 0 all Unicode line endings + 1 CR, LF, or CRLF only + PCRE_CONFIG_POSIX_MALLOC_THRESHOLD + Threshold of return slots, above which + \fBmalloc()\fP is used by the POSIX API + PCRE_CONFIG_STACKRECURSE Recursion implementation (1=stack 0=heap) + PCRE_CONFIG_UTF16 Availability of UTF-16 support (1=yes + 0=no); option for \fBpcre16_config()\fP + PCRE_CONFIG_UTF32 Availability of UTF-32 support (1=yes + 0=no); option for \fBpcre32_config()\fP + PCRE_CONFIG_UTF8 Availability of UTF-8 support (1=yes 0=no); + option for \fBpcre_config()\fP + PCRE_CONFIG_UNICODE_PROPERTIES + Availability of Unicode property support + (1=yes 0=no) +.sp +The function yields 0 on success or PCRE_ERROR_BADOPTION otherwise. That error +is also given if PCRE_CONFIG_UTF16 or PCRE_CONFIG_UTF32 is passed to +\fBpcre_config()\fP, if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF32 is passed to +\fBpcre16_config()\fP, or if PCRE_CONFIG_UTF8 or PCRE_CONFIG_UTF16 is passed to +\fBpcre32_config()\fP. +.P +There is a complete description of the PCRE native API in the +.\" HREF +\fBpcreapi\fP +.\" +page and a description of the POSIX API in the +.\" HREF +\fBpcreposix\fP +.\" +page. |