Emacs Regex vs Regex in Python, JavaScript, Java
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:]]" † |
† ELisp: Regex Named Character Class and Syntax Table
Emacs Lisp, Regex in Lisp Code
- ELisp: Regular Expression
- ELisp: Regex Functions
- Emacs: Regular Expression Syntax
- ELisp: Regex Backslash in Lisp Code
- ELisp: Case Sensitivity (case-fold-search)
- ELisp: Find Replace Text in Buffer
- ELisp: Match Data (Regex Result)
- ELisp: Unicode Escape Sequence
- ELisp: Convert Regex to Lisp Regex String
- ELisp: Tip: How to Test Regex
- ELisp: Regex in Readable Syntax, Package Rx
- ELisp: Regex Named Character Class and Syntax Table
- Emacs Regex vs Regex in Python, JavaScript, Java