"checkit_tiff" is an incredibly fast conformance checker for baseline TIFFs (with various extensions), see http://andreas-romeyke.de
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Andreas Romeyke f4369448a0 - added a testsuite to check if grammar and parser works as expected 5 years ago
common - fixed paths and descriptions 5 years ago
example_configs - init 5 years ago
src - renewed grammar, supports now real logical_or() 5 years ago
t - added a testsuite to check if grammar and parser works as expected 5 years ago
tiffs_should_fail - init, because PhotometricInterpretation = 0, there should not be a Colormap tag (or vice versa) 5 years ago
tiffs_should_pass - added a testsuite to check if grammar and parser works as expected 5 years ago
.gitignore Ignore compiled files and build directory. 5 years ago
BUGS - renamed checkit/ checkit_tiff/ to prepare repos split 5 years ago
FAQ - added cmake checks to handle with old libtiff (for example used in Debian Wheezy) 5 years ago
LICENSE - added LICENSE file 5 years ago
README.1st_checkit - updated README 5 years ago
README.TIFFspecification - renamed checkit/ checkit_tiff/ to prepare repos split 5 years ago
README.compile - added hints about using sanitizers 5 years ago
README.grammar - renewed grammar, supports now real logical_or() 5 years ago
README.regex - renamed checkit/ checkit_tiff/ to prepare repos split 5 years ago
TODO - renamed checkit/ checkit_tiff/ to prepare repos split 5 years ago

README.regex

= RegEx =

the program uses the pcre-library for regular expressions in ascii mathcing
rules (in config file).

If you use a regex similar to "^[:print:]*$" it does not match on
* all strings containing characters outside of printable ascii range (see 'man
pcre2pattern' for details)
* an empty string "" will not matched, because we defined PCRE_NOTEMPTY.
An empty string is not a valid match, this behaviour is a design choice.
* Unicode is not set, because TIFF specification is in general ASCII based
(PCRE_UTF8 not set)