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Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/pcre/doc/perltest.txt')
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diff --git a/rubbos/app/httpd-2.0.64/srclib/pcre/doc/perltest.txt b/rubbos/app/httpd-2.0.64/srclib/pcre/doc/perltest.txt new file mode 100644 index 00000000..5a404016 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/srclib/pcre/doc/perltest.txt @@ -0,0 +1,29 @@ +The perltest program +-------------------- + +The perltest program tests Perl's regular expressions; it has the same +specification as pcretest, and so can be given identical input, except that +input patterns can be followed only by Perl's lower case modifiers and /+ (as +used by pcretest), which is recognized and handled by the program. + +The data lines are processed as Perl double-quoted strings, so if they contain +" \ $ or @ characters, these have to be escaped. For this reason, all such +characters in testinput1 and testinput3 are escaped so that they can be used +for perltest as well as for pcretest, and the special upper case modifiers such +as /A that pcretest recognizes are not used in these files. The output should +be identical, apart from the initial identifying banner. + +For testing UTF-8 features, an alternative form of perltest, called perltest8, +is supplied. This requires Perl 5.6 or higher. It recognizes the special +modifier /8 that pcretest uses to invoke UTF-8 functionality. The testinput5 +file can be fed to perltest8. + +The testinput2 and testinput4 files are not suitable for feeding to perltest, +since they do make use of the special upper case modifiers and escapes that +pcretest uses to test some features of PCRE. The first of these files also +contains malformed regular expressions, in order to check that PCRE diagnoses +them correctly. Similarly, testinput6 tests UTF-8 features that do not relate +to Perl. + +Philip Hazel <ph10@cam.ac.uk> +August 2000 |