query: regex to find characters in a String
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positive_passages.text: What special characters must be escaped in regular expressions?
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negative_passages.text: Regex for quoted string with escaping quotes
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negative_passages.text: Find and extract a number from a string
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negative_passages.text: Regexp that matches valid regexps
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negative_passages.text: Regex misspellings
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negative_passages.text: How can I search for a string containing a colon?
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negative_passages.text: Finding all numbers in a string
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negative_passages.text: Shell test to find a pattern in a string
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negative_passages.text: C# Regular Expressions with \Uxxxxxxxx characters in the pattern
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negative_passages.text: string parsing in java
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negative_passages.text: Count the number of occurrences of a character in a string in Javascript
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negative_passages.text: JavaScript Regex, where to use escape characters?
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negative_passages.text: Extract digits from a string in Java
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negative_passages.text: regex to find url in a text
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negative_passages.text: How to find nth occurrence of character in a string?
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negative_passages.text: match until a certain pattern using regex
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negative_passages.text: Regular Expression for finding double characters in Bash