User:ArrowHead294/Regex snippets

These are some regular expressions I use for formatting purposes:

Pattern	Replace by	Purpose
^(?:\+|-|\x{2212})?(?:(?:\d{1,3}?(?:\,\d{3})*|\d+)\.?\d*|\d*\.?\d+)(?:[Ee][+-]?\d+)?$	N/A	Match a number
(?<!(<[Nn][Oo][Ww][Ii][Kk][Ii]>[^\n]*)|\{|\})(?<=\n)\|\s*(?!-|<\/[Nn][Oo][Ww][Ii][Kk][Ii]>|\{|\})	|	Space out pipe characters in tables (one cell per line)*

* Requires support for variable-length lookaheads and lookbehinds