| .TH PCRE2_SUBSTRING_COPY_BYNAME 3 "19 December 2014" "PCRE2 10.47-DEV" |
| .SH NAME |
| PCRE2 - Perl-compatible regular expressions (revised API) |
| .SH SYNOPSIS |
| .rs |
| .sp |
| .B #include <pcre2.h> |
| .PP |
| .nf |
| .B int pcre2_substring_copy_byname(pcre2_match_data *\fImatch_data\fP, |
| .B " PCRE2_SPTR \fIname\fP, PCRE2_UCHAR *\fIbuffer\fP, PCRE2_SIZE *\fIbufflen\fP);" |
| .fi |
| . |
| .SH DESCRIPTION |
| .rs |
| .sp |
| This is a convenience function for extracting a captured substring, identified |
| by name, into a given buffer. The arguments are: |
| .sp |
| \fImatch_data\fP The match data block for the match |
| \fIname\fP Name of the required substring |
| \fIbuffer\fP Buffer to receive the string |
| \fIbufflen\fP Length of buffer (code units) |
| .sp |
| The \fIbufflen\fP variable is updated to contain the length of the extracted |
| string, excluding the trailing zero. The yield of the function is zero for |
| success or one of the following error numbers: |
| .sp |
| PCRE2_ERROR_NOSUBSTRING there are no groups of that name |
| PCRE2_ERROR_UNAVAILBLE the ovector was too small for that group |
| PCRE2_ERROR_UNSET the group did not participate in the match |
| PCRE2_ERROR_NOMEMORY the buffer is not big enough |
| .sp |
| If there is more than one group with the given name, the first one that is set |
| is returned. In this situation PCRE2_ERROR_UNSET means that no group with the |
| given name was set. |
| .P |
| There is a complete description of the PCRE2 native API in the |
| .\" HREF |
| \fBpcre2api\fP |
| .\" |
| page and a description of the POSIX API in the |
| .\" HREF |
| \fBpcre2posix\fP |
| .\" |
| page. |
