Emacs Regex vs Regex in Python, JavaScript, Java Etc
Emacs regular expression is different from the regular expression in JavaScript, Python, Ruby, Perl etc.
Here are practical major differences.
| JavaScript, Python, Perl, Java Etc | emacs lisp (may not be exactly equivalent) | |
| Capture | "(capture)" | "\\(capture\\)" |
| digit | "\d" | "[0-9]" or "[[:digit:]]" † |
| word | "\w" | "[_A-Za-z0-9]" or "[[:word:]]" † |
| whitespace | "\s" | "[ \n\t]" or "[[:space:]]" † |
† Emacs Regular Expression Named Character Class and Syntax Table
Emacs Regular Expression
- Regular Expression
- Regex Syntax
- About Quoting Regex
- Case Sensitivity
- How to Insert a Tab or Newline
- Wildcards vs Regex
- Emacs Regex vs Python, JavaScript, Java