Module:StringReplace

-- Module for different search and replace operations on strings. local p = {}

-- Takes one string parameter, and returns the string with all characters with special meaning for Lua patterns escaped with a preceding `%`. function p.escape_pattern(text) -- Replaces each occurrence of any of .%+-*?[^$ with a `%` and then the character. local r = string.gsub(text, "[%(%)%.%%%+%-%*%?%[%^%$]", "%%%1") return r end

-- Returns the first parameter, with all occurrences of the second parameter replaced with the third parameter. -- All special characters are ignored: results in `test.abarfoo`. function p.replace_all(frame) local str = frame.args[1] local strToFind = frame.args[2] local strToreplaceWith = frame.args[3] local r = string.gsub(str, p.escape_pattern(strToFind), p.escape_pattern(strToreplaceWith)) return r end

p['encode wiki page name'] = function( frame ) local x = mw.ustring.gsub( 		frame.args[1] or '', 		'[\'"&_]', 		{ 			["'"] = '&#39;', 			['"'] = '&#34;', 			['&'] = '&#38;', 			['_'] = ' ', 		} 	) return mw.text.trim( x ) end

return p