Use -e for default -e pattern for M-X lgrep I would like to use -E, But it seems that -e is given a hard code in grep.el Tell me I'm wrong! Any sign? (I am using version 22.1 - is 23 in each green grass?)
if You can edit the resulting command line before executing Q prefix to Mx ligrap . The grep-command is the string used by the default Emacs for various grep functions, and you can change it to Mx customize-variable RET grep-command .
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