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- regex - Carets in Regular Expressions - Stack Overflow
Specifically when does ^ mean "match start" and when does it mean "not the following" in regular expressions? From the Wikipedia article and other references, I've concluded it means the former a
- What does \d+ mean in a regular expression? - Stack Overflow
What does \d+ mean in a regular expression?\d is a digit (a character in the range [0-9]), and + means one or more times Thus, \d+ means match one or more digits For example, the string "42" is matched by the pattern \d+
- Regex: ?: notation (Question mark and colon notation)
The regex compiles fine, and there are already JUnit tests that show how it works It's just that I'm a bit confused about why the first question mark and colon are there
- What does regular expression \\s*,\\s* do? - Stack Overflow
That regex "\\s*,\\s*" means: \s* any number of whitespace characters a comma \s* any number of whitespace characters which will split on commas and consume any spaces either side
- regex - Matching up to the first occurrence of a character with a . . .
Be aware that the first ^ in this answer gives the regex a completely different meaning: It makes the regular expression look only for matches starting from the beginning of the string
- regex - Regular Expression to find a string included between two . . .
I need to extract from a string a set of characters which are included between two delimiters, without returning the delimiters themselves A simple example should be helpful: Target: extract the
- regex - Decimal or numeric values in regular expression validation . . .
I am trying to use a regular expression validation to check for only decimal values or numeric values But user enters numeric value, it don't be first digit "0" How do I do that?
- regex - Regular Expressions: Is there an AND operator? - Stack Overflow
In regex in general, ^ is negation only at the beginning of a character class Unless CMake is doing something really funky (to the point where calling their pattern matching language "regex" could be regarded as misleading or incorrect) I'm guessing the fact that it worked for you was an isolated accident
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