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How to check if a given Regex is valid?
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Program to check/look up UTF-8/Unicode characters in string on command line?
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Get a command to ignore stuff in braces?
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Validate that string contains only allowed characters in Ruby
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How can I match a pipe character followed by whitespace and another pipe?
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What is the best way to escape non-format characters in Oracle's to_char?
97173
How to remove certain characters from a string in C++?
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some characters that need to use '\' before them to delete
133988
"cat" command: how to automatically escape everything that might be a violation?
126012
Suppress the u'prefix indicating unicode' in python strings
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How can I set an environment variable which contains newline characters?
63332
How can one represent a string pattern with prohibited substrings?
102643
How to remove accents / diacritic marks from a string in Qt?
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Regular expression to match non-ASCII characters?
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How do I remove all non alphanumeric characters from a string except dash?
65529
How do I escape the wildcard/asterisk character in bash?