Return to perltest.txt CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / pcre / doc

Annotation of embedaddon/pcre/doc/perltest.txt, revision 1.1.1.1

1.1       misho       1: The perltest program
                      2: --------------------
                      3: 
                      4: The perltest.pl script tests Perl's regular expressions; it has the same
                      5: specification as pcretest, and so can be given identical input, except that
                      6: input patterns can be followed only by Perl's lower case modifiers and certain
                      7: other pcretest modifiers that are either handled or ignored:
                      8: 
                      9:   /+   recognized and handled by perltest
                     10:   /++  the second + is ignored
                     11:   /8   recognized and handled by perltest
                     12:   /J   ignored
                     13:   /K   ignored
                     14:   /W   ignored
                     15:   /S   ignored
                     16:   /SS  ignored
                     17: 
                     18: The data lines are processed as Perl double-quoted strings, so if they contain
                     19: " $ or @ characters, these have to be escaped. For this reason, all such
                     20: characters in testinput1, testinput4, testinput6, and testinput11 are escaped
                     21: so that they can be used for perltest as well as for pcretest. The pcretest \Y
                     22: escape in data lines is removed.
                     23: 
                     24: The special upper case pattern modifiers such as /A that pcretest recognizes,
                     25: and its special data line escapes, are not used in these files. The output
                     26: should be identical, apart from the initial identifying banner.
                     27: 
                     28: The perltest.pl script can also test UTF-8 features. It recognizes the special
                     29: modifier /8 that pcretest uses to invoke UTF-8 functionality. The testinput4
                     30: and testinput6 files can be fed to perltest to run compatible UTF-8 tests.
                     31: However, it is necessary to add "use utf8;" to the script to make this work
                     32: correctly.
                     33: 
                     34: The testinput11 file contains tests that use features of Perl 5.10, so does not
                     35: work with Perl 5.8.
                     36: 
                     37: The other testinput files are not suitable for feeding to perltest.pl, since
                     38: they make use of the special upper case modifiers and escapes that pcretest
                     39: uses to test some features of PCRE. Some of these files also contains malformed
                     40: regular expressions, in order to check that PCRE diagnoses them correctly.
                     41: 
                     42: Philip Hazel
                     43: August 2011