"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 263fdf4237 Merge branch 'hotfix_cfg_sampleformat' 9 kuukautta sitten
common - helper script added to visualize PEG grammar more easily 3 vuotta sitten
example_configs - fixed tag SampleFormat (339) 9 kuukautta sitten
src - bugfix, order of linetype is important, now "include()" should be detected successfully 1 vuosi sitten
t - fixed tc count 2 vuotta sitten
tiffs_should_fail - added more minimal tiffs 1 vuosi sitten
tiffs_should_pass - fixed ICC version 1 vuosi sitten
.gitignore Ignore compiled files and build directory. 4 vuotta sitten
BUGS - renamed checkit/ checkit_tiff/ to prepare repos split 4 vuotta sitten
FAQ - fixed links 1 vuosi sitten
LICENSE - fixed copyright years 2 vuotta sitten
README.1st_checkit - fixed links 1 vuosi sitten
README.TIFFrisks - fixed typos 3 vuotta sitten
README.TIFFspecification - fixed typos 3 vuotta sitten
README.compile - added hint if segfault on highly corrupted tiff files 1 vuosi sitten
README.grammar - added hint about checkit_check_config 3 vuotta sitten
README.icc - added hint about ICC 3 vuotta sitten
README.regex - fixed typos 3 vuotta sitten
TODO - renamed checkit/ checkit_tiff/ to prepare repos split 4 vuotta sitten
grammar.xhtml - new grammar with enhanced modes and new Content definitions 3 vuotta sitten


= RegEx =

the program uses the pcre-library for regular expressions in ascii matching
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)