| .TH PCRE_GET_SUBSTRING 3 |
| .SH NAME |
| PCRE - Perl-compatible regular expressions |
| .SH SYNOPSIS |
| .rs |
| .sp |
| .B #include <pcre.h> |
| .PP |
| .SM |
| .B int pcre_get_substring(const char *\fIsubject\fP, int *\fIovector\fP, |
| .ti +5n |
| .B int \fIstringcount\fP, int \fIstringnumber\fP, |
| .ti +5n |
| .B const char **\fIstringptr\fP); |
| . |
| .SH DESCRIPTION |
| .rs |
| .sp |
| This is a convenience function for extracting a captured substring. The |
| arguments are: |
| .sp |
| \fIsubject\fP Subject that has been successfully matched |
| \fIovector\fP Offset vector that \fBpcre_exec()\fP used |
| \fIstringcount\fP Value returned by \fBpcre_exec()\fP |
| \fIstringnumber\fP Number of the required substring |
| \fIstringptr\fP Where to put the string pointer |
| .sp |
| The memory in which the substring is placed is obtained by calling |
| \fBpcre_malloc()\fP. The convenience function \fBpcre_free_substring()\fP can |
| be used to free it when it is no longer needed. The yield of the function is |
| the length of the substring, PCRE_ERROR_NOMEMORY if sufficient memory could not |
| be obtained, or PCRE_ERROR_NOSUBSTRING if the string number is invalid. |
| .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. |