I need to highlight the difference between two rather complex math tex-files and get a lot of errors. The files are complex in the math equations, fair enough to get errors, but what if I would like latexdiff to only compare the text OUTSIDE the \begin{align} ... \end{align} environment? Can one specify to exclude/ignore certain environments?
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1 Answer
Yes there is a way to do this. latexdiff has a class of environments that it regards as pictures and which it does not check. The value is stored in PICTUREENV and its default is (?:picture|DIFnomarkup)[\w\d*@]*. Writing a config file ld.cfg containing
PICTUREENV=(?:picture|DIFnomarkup|align)[\w\d*@]*
adds the align environment to this list. If this config file is placed in the current directory you can now run
latexdiff -c ld.cfg old.tex new.tex >diff.tex
and the content of your align environments will now be ignored.
answered Sep 22, 2012 at 15:06
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13Note that you do not need to put it in a separate config file. You could also do
latexdiff --config="PICTUREENV=(?:picture|DIFnomarkup|align)[\w\d*@]*"Aug 27, 2013 at 9:11 -
@Rabarberski Indeed, remember double dash before
config. However, the command starts getting long and one has to be careful about escaping. Aug 27, 2013 at 9:16 -
--config doesn't work for me from the Bash. I get
sh: 1: Syntax error: "(" unexpected Something went wrong in latexdiff. Deleting chp1/chp1-diff134.tex and abort. What can I do? Sep 7, 2016 at 15:19 -
@FrankBreitling In the shell you to either escape the many special characters or use single quotes instead. It really is easier with a config file. Sep 7, 2016 at 16:58
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