How to replace uppercase letters by their lowercase counterparts?

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I have a big text document in which suspension points are followed by a capital letter. It should be lowercase. Now I figured to use this expression in search & replace: …\ [:upper:] which works fine to find the parts I want to replace, but when I try to do that with …\ [:lower:] I pastes literally that expression rather than the same letter but lowercase. What am I doing wrong? Thanks!

libreoffice-writer libreoffice replace
1 Answers

You can't use [:lower:] this way, because it's only a pattern to match the search text; it doesn't affect or transform the matched text part.

To solve your issue:

  1. Put the search pattern in round brackets. This makes the current matched text available for the replacement pattern.

  2. Reference the current match in the replacement pattern using $1 (assuming there's only one pair of round brackets in your search pattern);

  3. Tell LO Writer to use lower-case characters when replacing.

Step by step (the following example will simply replace every upper-case letter by its lower-case counterpart):

  1. Open find/replace (CTRL+H or Menu Edit -> Find/Replace...)

  2. As search pattern, enter ([:upper:])

  3. Make sure that "Regular expressions" is selected in "Other Options";

  4. As replace pattern, enter $1 (this simply uses the complete current match as replacement);

  5. Still with cursor in the "Replace" input box, hit the Format... button; this will open the "Replace with Formatting" window.

  6. In the "Replace with Formatting" window, select "Font effects", and from "Effects" -> "Case", select "lowercase". Hit OK.

  7. Execute the Find/Replace.

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