regex-lookarounds Examples and Free Source Code

Using a regex lookahead after spaces...

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Why doesn't this look-behind assertion with a predefined regular expression work as expected?...

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Does lookaround affect which languages can be matched by regular expressions?...

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How to exclude subtotal lines from result...

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Inserting a potentially missing line with perl...

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Pattern/Regular expression to grab a number *only* if it's the only field in the record...

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Find regex match separated by two semicolons...

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Regex to match words within a specified distance of one another without a period occurring between t...

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Negative lookahead regex not working in Java...

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Determine if comma separated values are valid using regex...

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Regex Length issue...

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Do any regular expression fiddlers fully support lookbehind?...

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Capture stream of digits which is not followed by certain digits...

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Regex to match only book('knjiga') with specific name('naslov')...

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Can I get help generating the correct regex to match a list of test strings?...

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Pattern matching in R if string NOT followed but another string...

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Regex - Match last occurrence of parentheses...

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Java regular expression with lookahead...

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What's wrong with my lookahead regex in GNU sed?...

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Regular expression to match a file path with certain prefix...

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Discard a match if one pattern isn't followed by another...

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Regex expression to find end of multiline YAML codeblock...

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Regex matching with multiple negative look behind conditions...

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Regex for a date not preceded by = or |...

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regex to match all unescaped '$' in a regex string...

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Confusing behavior of a capturing group in a positive lookbehind in a Java regex with Pattern.matche...

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Matching text inside single but not multple delimiter characters in a regular expression...

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How can I exclude a single character from a list only when followed by certain other characters?...

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Tell if a Python regex string has a lookaround...

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RegEx for combining "match everything" and "negative lookahead"...

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