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-.TH PCRE 3
-.SH NAME
-PCRE - Perl-compatible regular expressions
-.SH PCRE SAMPLE PROGRAM
-.rs
-.sp
-A simple, complete demonstration program, to get you started with using PCRE,
-is supplied in the file \fIpcredemo.c\fR in the PCRE distribution.
-
-The program compiles the regular expression that is its first argument, and
-matches it against the subject string in its second argument. No PCRE options
-are set, and default character tables are used. If matching succeeds, the
-program outputs the portion of the subject that matched, together with the
-contents of any captured substrings.
-
-If the -g option is given on the command line, the program then goes on to
-check for further matches of the same regular expression in the same subject
-string. The logic is a little bit tricky because of the possibility of matching
-an empty string. Comments in the code explain what is going on.
-
-On a Unix system that has PCRE installed in \fI/usr/local\fR, you can compile
-the demonstration program using a command like this:
-
-  gcc -o pcredemo pcredemo.c -I/usr/local/include \\
-      -L/usr/local/lib -lpcre
-
-Then you can run simple tests like this:
-
-  ./pcredemo 'cat|dog' 'the cat sat on the mat'
-  ./pcredemo -g 'cat|dog' 'the dog sat on the cat'
-
-Note that there is a much more comprehensive test program, called
-\fBpcretest\fR, which supports many more facilities for testing regular
-expressions and the PCRE library. The \fBpcredemo\fR program is provided as a
-simple coding example.
-
-On some operating systems (e.g. Solaris) you may get an error like this when
-you try to run \fBpcredemo\fR:
-
-  ld.so.1: a.out: fatal: libpcre.so.0: open failed: No such file or directory
-
-This is caused by the way shared library support works on those systems. You
-need to add
-
-  -R/usr/local/lib
-
-to the compile command to get round this problem.
-
-.in 0
-Last updated: 28 January 2003
-.br
-Copyright (c) 1997-2003 University of Cambridge.