Replace all characters except the last one
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#1 : 03/08-22 00:13 Baso
Posts: 4
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Hi, I have a lot of files like this;
Vialidad_Nacional_1.jpg Vialidad_Nacional_2.jpg Vialidad_Nacional_3.jpg England_20_Pound Sterling note 1999_1.jpg England_20_Pound Sterling note 1999_2.jpg And this is what I'm trying to do: Vialidad Nacional_1.jpg Vialidad Nacional_2.jpg Vialidad Nacional_3.jpg England 20_Pound Sterling note 1999_1.jpg England 20_Pound Sterling note 1999_2.jpg The idea is to replace all underscores with spaces except the last one. I'm dealing with RegEx but I cannot find the way. I'll appreciate any help. Thanks. |
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#2 : 04/08-22 11:04 David Lee
Posts: 1125
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Use a "Lookahead" to match only an underscore if it is not followed by a string containing another one.
Replace: _(?=[^_]*_) with: <space> Use regular expressions See https://www.regular-expressions.info/lookaround. html but note that Lookbehind is not supported in Perl Compatible Regex. |
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#3 : 04/08-22 19:13 Baso
Posts: 4
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Reply to #2:
Thank you very much David! That worked! Also, the link you provided, explains Lookahead in detail (I couldn't find in this page in support section). |