Perl-compatible Regular Expressions (PCRE)

The HTML documentation for PCRE comprises the following pages:

pcre	Introductory page
pcreapi	PCRE's native API
pcrebuild	Options for building PCRE
pcrecallout	The callout facility
pcrecompat	Compability with Perl
pcrecpp	The C++ wrapper for the PCRE library
pcregrep	The pcregrep command
pcrematching	Discussion of the two matching algorithms
pcrepartial	Using PCRE for partial matching
pcrepattern	Specification of the regular expressions supported by PCRE
pcreperform	Some comments on performance
pcreposix	The POSIX API to the PCRE library
pcreprecompile	How to save and re-use compiled patterns
pcresample	Description of the sample program
pcrestack	Discussion of PCRE's stack usage
pcretest	The pcretest command for testing PCRE

There are also individual pages that summarize the interface for each function in the library:

pcre_compile	Compile a regular expression
pcre_compile2	Compile a regular expression (alternate interface)
pcre_config	Show build-time configuration options
pcre_copy_named_substring	Extract named substring into given buffer
pcre_copy_substring	Extract numbered substring into given buffer
pcre_dfa_exec	Match a compiled pattern to a subject string (DFA algorithm; not Perl compatible)
pcre_exec	Match a compiled pattern to a subject string (Perl compatible)
pcre_free_substring	Free extracted substring
pcre_free_substring_list	Free list of extracted substrings
pcre_fullinfo	Extract information about a pattern
pcre_get_named_substring	Extract named substring into new memory
pcre_get_stringnumber	Convert captured string name to number
pcre_get_substring	Extract numbered substring into new memory
pcre_get_substring_list	Extract all substrings into new memory
pcre_info	Obsolete information extraction function
pcre_maketables	Build character tables in current locale
pcre_refcount	Maintain reference count in compiled pattern
pcre_study	Study a compiled pattern
pcre_version	Return PCRE version and release date

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