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Linux's Witness Ministry
The Personal Web Pages of Chris X. Edwards

Regular Expression Tutorial
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re-REGEXP

"Sometimes you have a programming problem and it seems like the best solution is to use regular expressions; now you have two problems."
  1. History of Regular Expressions
  2. Definition
  3. Why Use Regular Expressions
  4. Delimiters
  5. Literals vs. Metacharacters
  6. . - Comprehensive Character Class
  7. [] - Custom Character Classes
  8. [^] - Negated Character Classes
  9. [-] - Character Class Ranges
  10. Character Class Ambiguities
  11. * - Comprehensive Quantifier
  12. + - Existent Quantifier
  13. ? - Optional Quantifier
  14. {,} - Limiting Quantifier
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Chris X. Edwards ~ December 2003