1#!/bin/sh 2 3cp syntax.txt syntax.wiki 4sam -d syntax.wiki <<'!' 5,s!`!`````!g 6,s!== (([^()]|\([^()]*\))*)!≡ `\1`!g 7,s!«!`!g 8,s!»!`!g 9,s! vim$! <font size="1">VIM</font>!g 10,s! pcre$! <font size="1">PCRE</font>!g 11,s! perl$! <font size="1">PERL</font>!g 12,s!(^[^ ]+) (.*)\n!`\1` \2\n!g 13,x g/NOT SUPPORTED/ s!^[^ ]+!<font color="#808080">&</font>! 14,s!NOT SUPPORTED!<font size="1">(&)</font>!g 15,s!(^[^ ]+) (.*)\n!<tr><td>\1</td><td>\2</td></tr>\n!g 16,s!.*:$!<b>&</b>!g 17,s!^$!<tr><td></td></tr>!g 18,x v/<tr>/ s!.*!<tr><td colspan="2">&</td></tr>! 191,2c 20#summary I define UNIX as “30 definitions of regular expressions living under one roof.” —Don Knuth 21 22<wiki:comment> 23GENERATED BY mksyntaxwiki. DO NOT EDIT 24</wiki:comment> 25 26<table border="0" cellpadding="2" cellspacing="2"> 27<tr><td colspan="2">This page lists the regular expression syntax accepted by RE2.</td></tr> 28<tr><td colspan="2">It also lists syntax accepted by PCRE, PERL, and VIM.</td></tr> 29<tr><td colspan="2">Grayed out expressions are not supported by RE2.</td></tr> 30. 31$a 32</table> 33. 34w 35q 36! 37