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nigel |
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.TH PCRE 3 |
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.SH NAME |
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PCRE - Perl-compatible regular expressions |
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.SH SYNOPSIS |
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.rs |
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.sp |
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.B #include <pcre.h> |
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.PP |
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.SM |
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.br |
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.B int pcre_exec(const pcre *\fIcode\fR, "const pcre_extra *\fIextra\fR," |
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.ti +5n |
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.B "const char *\fIsubject\fR," int \fIlength\fR, int \fIstartoffset\fR, |
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.ti +5n |
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.B int \fIoptions\fR, int *\fIovector\fR, int \fIovecsize\fR); |
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.SH DESCRIPTION |
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.rs |
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.sp |
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This function matches a compiled regular expression against a given subject |
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string, and returns offsets to capturing subexpressions. Its arguments are: |
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\fIcode\fR Points to the compiled pattern |
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\fIextra\fR Points to an associated \fBpcre_extra\fR structure, |
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or is NULL |
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\fIsubject\fR Points to the subject string |
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\fIlength\fR Length of the subject string, in bytes |
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\fIstartoffset\fR Offset in bytes in the subject at which to |
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start matching |
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\fIoptions\fR Option bits |
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\fIovector\fR Points to a vector of ints for result offsets |
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\fIovecsize\fR Size of the vector (a multiple of 3) |
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The options are: |
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PCRE_ANCHORED Match only at the first position |
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PCRE_NOTBOL Subject is not the beginning of a line |
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PCRE_NOTEOL Subject is not the end of a line |
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PCRE_NOTEMPTY An empty string is not a valid match |
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There is a complete description of the PCRE API in the |
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.\" HREF |
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\fBpcreapi\fR |
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.\" |
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page. |