Converting a subversion repo to git, and setting up an authors file. I'm running query-replace-regexp on this text:


using this regexp:

^\(.*\)$ -> \1 = Some Lowercase Text Here <[email protected]>

When I execute the replacement, the replacement text is being capitalized like this, due to the case sensitive nature of replacements:

E001234 = SOME LOWERCASE TEXT HERE <[email protected]>

I understand what's happening, but is there a way to turn this off w/o writing a custom function (trivial, but still...)?

  • Tried this:Query replace regexp (default ^\(.*\)$ -> \1 = \,(substring "OneAmerica Former Employee <[email protected]>" 0)): but no dice. Seems the replacing operates on the text after it's created. Commented Feb 24, 2015 at 11:05

1 Answer 1


You can set the variable case-replace to nil before executing the command. Then you will get the following replacement

E001234 = Some Lowercase Text Here <[email protected]>

as expected. When case-replace is non-nil it preserves case in replacements, i.e. the case of the replacement matches that of the matched text.

Note, there is also the variable case-fold-search which also affects case in the match and as well as the replacement.

  • So sounds like I'd have to set that variable, run all my query-replace-regexp commands, then unset it? No way to toggle it as part of running query-replace-regexp? Commented Feb 24, 2015 at 14:39
  • Indeed. There is no why standard way to invoke query-replace-regexp with a particular choice of case matching option. Instead it is controlled via these variables. Commented Feb 24, 2015 at 17:13
  • @scottplumlee You can write a wrapper function that sets that variable in a let and then calls the query-replace-regexp. Let me know if you want me to elaborate that. Commented Feb 25, 2015 at 5:43
  • @kaushalmodi That's the method I am going to try, thanks. Commented Feb 25, 2015 at 17:59

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