I am trying to search ‘ (’ and replace it to ‘(’. 1. I get a regular expression related error while using the Search and Replace function, even though the Use regular expressions option is unchecked. The same problem occurs even after closing and restarting Trados. 2. When I tick the Use regular expressions option and then try to find ‘\s\(’ and replace it with ‘\(’, it does it with ‘\(’ instead of ‘(’. So I try to find ‘\s(\()’ and replace it to ‘\1’, I get an error saying that ‘\1’ is not a valid regular expression. Could anybody help with this problem? Thank you so much in advance.

Trados Studio > 5. Regex and XPath

Issues with Using Regex in the Search and Replace Function

Jin Choi 3 hours ago

I am trying to search ‘ (’ and replace it to ‘(’.

1. I get a regular expression related error while using the Search and Replace function, even though the Use regular expressions option is unchecked.
The same problem occurs even after closing and restarting Trados.

Search and Replace dialog box with an error icon next to the 'Use regular expressions' option, which is unchecked.

2. When I tick the Use regular expressions option and then try to find ‘\s\(’ and replace it with ‘\(’, it does it with ‘\(’ instead of ‘(’.
So I try to find ‘\s(\()’ and replace it to ‘\1’, I get an error saying that ‘\1’ is not a valid regular expression.

Search and Replace dialog box showing the 'Use regular expressions' option checked with a warning icon next to it.

Could anybody help with this problem? Thank you so much in advance.

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[edited by: RWS Community AI at 5:02 AM (GMT 0) on 21 Nov 2024]

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Thread Subject & Description
Issues with Using Regex in the Search and Replace Function I am trying to search ‘ (’ and replace it to ‘(’. 1. I get a regular expression related error while using the Search and Replace function, even though the Use regular expressions option is unchecked. The same problem occurs even after closing and restarting Trados. https://community.rws.com/resized-image/__size/1800x1200/__key/communityserver-discussions-components-files/171/_A4C26CD0B0B9F7C0_-2024_2D00_11_2D00_21-134730.png 2. When I tick the Use regular expressions option and then try to find ‘\s\(’ and replace it with ‘\(’, it does it with ‘\(’ instead of ‘(’. So I try to find ‘\s(\()’ and replace it to ‘\1’, I get an error saying that ‘\1’ is not a valid regular expression. https://community.rws.com/resized-image/__size/1800x1200/__key/communityserver-discussions-components-files/171/_A4C26CD0B0B9F7C0_-2024_2D00_11_2D00_21-135454.png Could anybody help with this problem? Thank you so much in advance.
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0 Jesús Prieto 7 minutes ago

Jin Choi

I can repro issue #1 even in Trados Studio 2022 & 2024. It’s an old bug, isn’t it Paul ?

About issue #2, if you want to use backreferences, you need to use “$1” instead, and this works. Having demonstrated that the Replace with field uses regular expressions, it won’t handle properly the pattern “$1 \(”, while “$1 (” will be handled as a hybrid pattern (a backreference followed by a non-regex pattern), which puzzles me… Paul ?
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