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Update bundled PCRE2-library to version 10.23

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Some manual changes done to the library were lost with this update.
They will be added in the next commit.
This commit is contained in:
Esa Korhonen
2017-05-29 15:31:42 +03:00
parent 7231563937
commit 36af74cb25
218 changed files with 49218 additions and 26130 deletions
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46
pcre2/doc/html/pcre2sample.html
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@ -24,12 +24,11 @@ documentation. If you do not have a copy of the PCRE2 distribution, you can
save this listing to re-create the contents of <i>pcre2demo.c</i>.
</P>
<P>
The demonstration program, which uses the PCRE2 8-bit library, compiles the
regular expression that is its first argument, and matches it against the
subject string in its second argument. No PCRE2 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.
The demonstration program compiles the regular expression that is its
first argument, and matches it against the subject string in its second
argument. No PCRE2 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.
</P>
<P>
If the -g option is given on the command line, the program then goes on to
@ -38,34 +37,39 @@ 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.
</P>
<P>
The code in <b>pcre2demo.c</b> is an 8-bit program that uses the PCRE2 8-bit
library. It handles strings and characters that are stored in 8-bit code units.
By default, one character corresponds to one code unit, but if the pattern
starts with "(*UTF)", both it and the subject are treated as UTF-8 strings,
where characters may occupy multiple code units.
</P>
<P>
If PCRE2 is installed in the standard include and library directories for your
operating system, you should be able to compile the demonstration program using
this command:
a command like this:
<pre>
gcc -o pcre2demo pcre2demo.c -lpcre2-8
cc -o pcre2demo pcre2demo.c -lpcre2-8
</pre>
If PCRE2 is installed elsewhere, you may need to add additional options to the
command line. For example, on a Unix-like system that has PCRE2 installed in
<i>/usr/local</i>, you can compile the demonstration program using a command
like this:
<pre>
gcc -o pcre2demo -I/usr/local/include pcre2demo.c -L/usr/local/lib -lpcre2-8
</PRE>
</P>
<P>
Once you have compiled and linked the demonstration program, you can run simple
tests like this:
cc -o pcre2demo -I/usr/local/include pcre2demo.c -L/usr/local/lib -lpcre2-8
</pre>
Once you have built the demonstration program, you can run simple tests like
this:
<pre>
./pcre2demo 'cat|dog' 'the cat sat on the mat'
./pcre2demo -g 'cat|dog' 'the dog sat on the cat'
</pre>
Note that there is a much more comprehensive test program, called
<a href="pcre2test.html"><b>pcre2test</b>,</a>
which supports many more facilities for testing regular expressions using the
PCRE2 libraries. The
which supports many more facilities for testing regular expressions using all
three PCRE2 libraries (8-bit, 16-bit, and 32-bit, though not all three need be
installed). The
<a href="pcre2demo.html"><b>pcre2demo</b></a>
program is provided as a simple coding example.
program is provided as a relatively simple coding example.
</P>
<P>
If you try to run
@ -73,7 +77,7 @@ If you try to run
when PCRE2 is not installed in the standard library directory, you may get an
error like this on some operating systems (e.g. Solaris):
<pre>
ld.so.1: a.out: fatal: libpcre2.so.0: open failed: No such file or directory
ld.so.1: pcre2demo: fatal: libpcre2-8.so.0: open failed: No such file or directory
</pre>
This is caused by the way shared library support works on those systems. You
need to add
@ -97,9 +101,9 @@ Cambridge, England.
REVISION
</b><br>
<P>
Last updated: 20 October 2014
Last updated: 02 February 2016
<br>
Copyright &copy; 1997-2014 University of Cambridge.
Copyright &copy; 1997-2016 University of Cambridge.
<br>
<p>
Return to the <a href="index.html">PCRE2 index page</a>.