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Module:String: Difference between revisions
add str.replace_plain
en>Dragons flight (Continuing trials and tribulations of string trimming and Wikipedia template quirks) |
en>WOSlinker (add str.replace_plain) |
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return start | return start | ||
end | |||
--[====[ | |||
replace_plain | |||
This function allows one to replace a target string or pattern within another | |||
string. | |||
Usage: | |||
{{#invoke:String|replace_plain|source_str|pattern_string|replace_string|firstonlyflag}} | |||
OR | |||
{{#invoke:String|replace_plain|source=source_str|pattern=pattern_str|replace=replace_string|firstonly=firstonlyflag}} | |||
Parameters | |||
source: The string to search | |||
patten: The string or pattern to find within source | |||
replace: The replacement text | |||
firstonly: Boolean flag indicating that only the first occurence found should be replaced | |||
]====] | |||
function str.replace_plain( frame ) | |||
local new_args = str._getParameters( frame.args, {'source', 'pattern', 'replace', 'firstonly' } ); | |||
local source_str = new_args['source'] or ''; | |||
local pattern = new_args['pattern'] or ''; | |||
local replace = new_args['replace'] or ''; | |||
local firstonly = new_args['firstonly'] or ''; | |||
firstonly = firstonly:lower(); | |||
if source_str == '' or pattern == '' then | |||
return source_str; | |||
end | |||
local pattern_plain = mw.ustring.gsub(pattern, '%%', '%%%%'); | |||
local replace_plain = mw.ustring.gsub(replace, '%%', '%%%%'); | |||
if firstonly == 'true' or firstonly == 'yes' or firstonly == '1' then | |||
local result = gsub( source_str, pattern_plain, replace_plain, 1 ); | |||
else | |||
local result = gsub( source_str, pattern_plain, replace_plain, n ); | |||
end | |||
return result; | |||
end | end | ||