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@TorbjørnT I thought you could use \input in any latex file to input the text of any text based file as if typed into the .tex file by hand. My thought would be to \input{file.txt} as the body of one .tex file and to \input{file2.txt} as the body of a second .tex file and then use latexdiff to compare the two.
As you tried to do with your snippet of code, the most straightforward approach for comparing two arbitrary brace-balanced token sequences is using each of them as ⟨replacement text⟩ of another scratch-macro and \ifx-comparing the scratch macros:
9. It appears that TeXStudio has a built-in DIFF feature. For example, one can define the syntax highlighting used for differences in the options dialogue. But if I have two files to compare, say article.tex and article_old.tex, how do I launch the DIFF mode? The only way I found is to open article.tex and then use "Show differences between two ...
This is a simple way to have a button in WinEdt 7 (this one works in v7 only) to run latexdiff. Show the "Options Interface" (Options -> Options Interface) Double-click the "Main Menu" item (MainMenu.ini gets opened) Just before the line. ITEM="Compile". add the following lines.
Introduced modifications, unfortunately, also regard line breaks and spacing (source text line breaks, not latex ones), so that it is difficult for me to compare the files with standard unix text tools. So I wonder if there is some latex text processor that could reduce both files to a common form, where could be simpler to spot the essential ...
There are various approaches to doing true 'string' comparisons in TeX. With a modern TeX engine, by far the easiest is to use \pdfstrcmp or equivalent: \documentclass{article} \usepackage{pdftexcmds} \makeatletter. \newcommand\foo[1]{%. \ifnum\pdf@strcmp{\unexpanded{#1}}{german}=0 %. \expandafter\@firstoftwo. \else.
would print: <>0 11 is not equal 0. because the tokens <>0 would not be used by \if, so TeX would simply write them on the output. To do an integer comparison you need \ifnum: 1 equals 0. 1 is not equal 0. Also, TeX does not have a not equal to comparison. You can only compare with <, =, or >.
In a large text, hundreds of such details make a big difference that most people notice, although surely they do not know why. Besides, there a lot of things that you cannot show with a visual comparison, as TikZ diagrams and plots with pgfplots, simply because a word processor is unable to do figures without a third program (that most likely ...
See the resulting Latex output, and compare. In [1] the difference between the two arrows of the unequal equilibrium sign becomes less perceptible because the sign has been stretched by the text. Compare to the same sign without the text [2]. I want the the differences between the upper and lower arrows to be exacerbated a bit more.
In TeXstudio on the other hand, you can show/hide it. Small detail, but to me it actually mattered. Fine-tuning autocomplete commands. In Texmaker, you can add your own commands to the list of autocomplete commands, and there's a list of existing commands that you can edit, i.e. remove commands from the list.