lookbehind

English

look +‎ behind

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
  [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.

单词	lookbehind
释义	lookbehind English Etymology look +‎ behind Noun 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 [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 lookaround Hyponyms (regular expressions): negative lookbehind (?<!) (regular expressions): positive lookbehind (?<=) See also lookahead
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