User:ArrowHead294/Regex snippets: Difference between revisions

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| <code>$1 $2 $3</code>
| <code>$1 $2 $3</code>
| Space out equals signs for section headers*
| Space out equals signs for section headers*
|-
| <code><nowiki>(?<=\n)(\||!)(?!-)[^\S\r\n]*(?!\}|\+)</nowiki></code>
| rowspan="2" | <code><nowiki>$1&nbsp;</nowiki></code>
| Space out pipe characters and header separators in tables (one cell per line)*
|-
|-
| <code><nowiki>(?<=\n)(\||!)[^\S\r\n]*\|?[^\S\r\n]*(?!-|\}|\+)</nowiki></code>
| <code><nowiki>(?<=\n)(\||!)[^\S\r\n]*\|?[^\S\r\n]*(?!-|\}|\+)</nowiki></code>
| Replace <code>!&nbsp;{{pipe}}&nbsp;</code> and <code>{{pipe}}&nbsp;{{pipe}}&nbsp;</code> with <code>!&nbsp;</code> and <code>{{pipe}}&nbsp;</code>, respectively
| <code><nowiki>$1&nbsp;</nowiki></code>
| Space out pipe characters and header separators in tables (one cell per line) and replace <code>!&nbsp;{{pipe}}&nbsp;</code> and <code>{{pipe}}&nbsp;{{pipe}}&nbsp;</code> with <code>!&nbsp;</code> and <code>{{pipe}}&nbsp;</code>, respectively
|-
|-
| <code><nowiki>(\d+[Ll])\s*(\d+[Ss])</nowiki></code>
| <code><nowiki>(\d+[Ll])\s*(\d+[Ss])</nowiki></code>
| <code><nowiki>$1&amp;nbsp;$2</nowiki></code>
| <code><nowiki>$1&amp;nbsp;$2</nowiki></code>
| Make sure ''x''L&nbsp;''y''s notation for MOS scales are non-wrapped
| Make sure ''x''L&nbsp;''y''s notation for MOS scales are non-wrapped
|-
| <code><nowiki>(?<!(?:<(\w+-)*\w+>[^\n]*(?=<\/(\w+-)*\w+>)|\{|\}))[^\S\r\n]*(\|\|\|?|!!!?)[^\S\r\n]*(?!-|[^\n]*<\/(\w+-)*\w+>(?=<(\w+-)*\w+>)|\{|\})</nowiki></code>
| <code><nowiki>&nbsp;$1&nbsp;</nowiki></code>
| Space out pipe characters and header separators in tables (entire row per line)*
|-
|-
| <code><nowiki><math>,*\s*\\frac(\d)(\d),*\s*<\/math></nowiki></code>
| <code><nowiki><math>,*\s*\\frac(\d)(\d),*\s*<\/math></nowiki></code>

Revision as of 16:59, 21 January 2025

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
(?<=\n)(=+)\s*((?:[^\s=]+\s*)+[^\s=])\s*(=+)
or (?<=\n)(\=+)\s*((?:[^\s\=]+\s*)+[^\s\=])\s*(\=+)
$1 $2 $3 Space out equals signs for section headers*
(?<=\n)(\||!)[^\S\r\n]*\|?[^\S\r\n]*(?!-|\}|\+) $1  Space out pipe characters and header separators in tables (one cell per line) and replace ! |  and | |  with and , respectively
(\d+[Ll])\s*(\d+[Ss]) $1&nbsp;$2 Make sure xys notation for MOS scales are non-wrapped
<math>,*\s*\\frac(\d)(\d),*\s*<\/math> {{frac|$1|$2}} or
{{sfrac|$1|$2}}
Standalone fractions with single-digit numerators and denominators can be done using {{frac}} or {{sfrac}} and don't need to be TeXified

* Requires support for variable-width lookaheads and lookbehinds

See also