lookbehind
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English[edit]
Etymology[edit]
Noun[edit]
lookbehind (countable and uncountable, plural lookbehinds)
- (regular expressions) The analysis of the preceding characters before the regular expression is matched.
- 2004, Mehran Habibi, Java Regular Expressions: Taming the java.util.regex Engine[1]:
- [There] are times when it's useful to be able to look to the left of the current position being considered to see what the past had to say about a particular pattern. That is the purpose of lookbehinds.
Hypernyms[edit]
Hyponyms[edit]
- (regular expressions): negative lookbehind (?<!)
- (regular expressions): positive lookbehind (?<=)