PCRE2 — Perl-compatible regular expressions (revised API)
#include <pcre2.h> int pcre2_match(const pcre2_code *code, PCRE2_SPTRsubject, PCRE2_SIZElength, PCRE2_SIZEstartoffset, uint32_toptions, pcre2_match_data *match_data, pcre2_match_context *mcontext);
This function matches a compiled regular expression against a given subject string, using a matching algorithm that is similar to Perl's. It returns offsets to captured substrings. Its arguments are:
codePoints to the compiled patternsubjectPoints to the subject stringlengthLength of the subject stringstartoffsetOffset in the subject at which to start matchingoptionsOption bitsmatch_dataPoints to a match data block, for resultsmcontextPoints to a match context, or is NULL
A match context is needed only if you want to:
Set up a callout function Change the limit for calling the internal functionmatch() Change the limit for callingmatch() recursively Set custom memory management when the heap is used for recursion
The length and startoffset values are code units, not
characters. The options are:
PCRE2_ANCHORED Match only at the first position
PCRE2_NOTBOL Subject string is not the beginning of a line
PCRE2_NOTEOL Subject string is not the end of a line
PCRE2_NOTEMPTY An empty string is not a valid match
PCRE2_NOTEMPTY_ATSTART An empty string at the start of the subject
is not a valid match
PCRE2_NO_UTF_CHECK Do not check the subject for UTF
validity (only relevant if PCRE2_UTF
was set at compile time)
PCRE2_PARTIAL_SOFT Return PCRE2_ERROR_PARTIAL for a partial
match if no full matches are found
PCRE2_PARTIAL_HARD Return PCRE2_ERROR_PARTIAL for a partial match
if that is found before a full match
For details of partial matching, see the pcre2partial(3) page. There is a complete description of the PCRE2 native API in the pcre2api(3) page and a description of the POSIX API in the pcre2posix(3) page.
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This manual page is taken from the PCRE library, which is distributed under the BSD license. |