regex - Texwrangler replacement string -

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i use reqex expression: \s\.\d find expression, e.g., ".9" , replace expression "0.9", i.e., part of search pattern part of replacement pattern. avoid replacing .true. 0.true. i've tried replacement patterns such 0.\d puts "d" in replacement string.

you may use & backreference entire match. if want match dot preceded non-word char , followed digit, may use \b\.\d , replace 0&.

however, if use \s\.\d , want add zero, need capturing group - (\s)(\.\d) , replace \010\2 (where \01 backreference first capturing group, 0 0 , \2 backreference second capturing group. note approach won't let match @ string start, need add alternative in first group: (^|\s)(\.\d) ^ matches start of string/line.


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