программа для тестирования регулярных выражений, совместимых с Perl (a program for testing Perl-compatible regular expressions.)
INPUT DATA FORMAT
Input to pcretest is processed line by line, either by calling
the C library's fgets() function, or via the libreadline library
(see below). In Unix-like environments, fgets() treats any bytes
other than newline as data characters. However, in some Windows
environments character 26 (hex 1A) causes an immediate end of
file, and no further data is read. For maximum portability,
therefore, it is safest to use only ASCII characters in pcretest
input files.
The input is processed using using C's string functions, so must
not contain binary zeroes, even though in Unix-like environments,
fgets() treats any bytes other than newline as data characters.
