"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 e9de63bf49 - added special case for preferred cmmtype LINO 3 years ago
common - helper script added to visualize PEG grammar more easily 3 years ago
example_configs - minor adaptions to new grammar 3 years ago
src - added special case for preferred cmmtype LINO 3 years ago
t - added compare script to validate results from old stable branch with this new development 3 years ago
tiffs_should_fail - minimized invalid-datetime tiff 3 years ago
tiffs_should_pass - added new files for tiffs_should_fail/ 3 years ago
.gitignore Ignore compiled files and build directory. 4 years ago
BUGS - renamed checkit/ checkit_tiff/ to prepare repos split 4 years ago
FAQ - updated FAQ, removed old libTIFF related entries 3 years ago
LICENSE - added LICENSE file 4 years ago
README.1st_checkit - updated output 3 years ago
README.TIFFrisks - fixed missed "even" 3 years ago
README.TIFFspecification - renamed checkit/ checkit_tiff/ to prepare repos split 4 years ago
README.compile - added special case for preferred cmmtype LINO 3 years ago
README.grammar - visualized grammar added (plus notes about how to visualize) 4 years ago
README.icc - added hint about ICC 4 years ago
README.regex - renamed checkit/ checkit_tiff/ to prepare repos split 4 years ago
TODO - renamed checkit/ checkit_tiff/ to prepare repos split 4 years ago
grammar.xhtml - new grammar with enhanced modes and new Content definitions 3 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)