Pragmatic Regular Expressions

POSIX regular expressions (ERE) grep-E extended / egrep sed-E. ereg () PHP …. Overview and examples from: ….

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Pragmatic Regular Expressions

  • Pattern Matching
  • Regular Expressions
  • Why are regexes useful?
  • Theory
  • Regex Flavors
  • Regex Powertoy
  • Character Classes
  • Anchors
  • Word boundaries
  • Alternation: logical OR
  • Quantification and repetition: how many?
  • Grouping, capturing, and backreferences
  • Modifiers: matching modes
  • Lookahead and lookbehind
  • Conclusion and further reading

 

Download Pragmatic Regular Expressions pdf from www.acm.uiuc.edu, 19 pages, 235.19KB.
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