query: Why isn't this regular expression test working?
positive_passages.docid: 4697
positive_passages.text: bash regex with quotes?
negative_passages.docid: 141693
negative_passages.text: Why is this match pattern unreachable when using non-literal patterns?
negative_passages.docid: 145012
negative_passages.text: In a java regex, how can I get a character class e.g. [a-z] to match a - minus sign?
negative_passages.docid: 1685
negative_passages.text: Why does this Java regex cause "illegal escape character" errors?
negative_passages.docid: 43339
negative_passages.text: Regular expression to match non-ASCII characters?
negative_passages.docid: 26063
negative_passages.text: How to use a variable inside a regular expression?
negative_passages.docid: 127672
negative_passages.text: How to detect a floating point number using a regular expression
negative_passages.docid: 141442
negative_passages.text: Why does my string comparison fail?
negative_passages.docid: 823
negative_passages.text: How do you use a variable in a regular expression?
negative_passages.docid: 59646
negative_passages.text: Do regular expressions from the re module support word boundaries (\b)?
negative_passages.docid: 52544
negative_passages.text: How can I use a regular expression to validate month input?
negative_passages.docid: 150965
negative_passages.text: RegEx expression not allowing only spaces?
negative_passages.docid: 142285
negative_passages.text: What's the regular expression that matches a square bracket?
negative_passages.docid: 21579
negative_passages.text: Can I test if a regex is valid in C# without throwing exception
negative_passages.docid: 69214
negative_passages.text: How to use regex pattern in java?
negative_passages.docid: 92237
negative_passages.text: Shell test to find a pattern in a string
negative_passages.docid: 113601
negative_passages.text: What is the difference between .*? and .* regular expressions?