Módulo:Ustring/doc
Esta es la página de documentación de Módulo:Ustring
 | This module is rated as ready for general use. It has reached a mature form and is thought to be bug-free and ready for use wherever appropriate. It is ready to mention on help pages and other Wikipedia resources as an option for new users to learn. To reduce server load and bad output, it should be improved by sandbox testing rather than repeated trial-and-error editing. |
This module directly imports all functions from the {escape|mode=kill|mw.ustring}} library. Documentation for each function can be found there.
The module takes an indefinite number of arguments. All arguments are coerced as number type if possible. If you wish for something to remain a string, you can simply escape it by insert \ at the beginning of the string.
You can also wrap results in tags. All non-number indexed arguments will be passed to {escape|mode=kill|
frame:extensionTag}}
Usage[revisa codigo]
{{#invoke:Ustring|function_name|arg1|arg2|...}} is equivalent to {escape|mode=kill|[[mw:Extension:Scribunto/Lua_reference_manual\#Ustring library|mw.ustring.function_namePlantilla:Scribunto/helper2]]}}
Example using mw.ustring.sub[revisa codigo]
{{#invoke:Ustring|sub|abcde|2|4}}
produces:
bcd
Example using mw.ustring.gsub[revisa codigo]
{{#invoke:Ustring|gsub|1234|23|}}
produces:
14
Example using mw.ustring.char[revisa codigo]
&#{{#invoke:ustring|char|49|48|59}}
produces:
This is nice for escaping character sequences in other modules; for example:
p = {}
function p.main(frame)
local str = '1-2-2{{#invoke:ustring|char|45}}1-3'
return frame:preprocess(str:gsub('-', '/'))-- == '1/2/2-1/3'
end
return p
Example using mw.ustring.match[revisa codigo]
{{#invoke:Ustring|match|abcde|(c%w)}}
produces:
cd
Note: Only the first match is returned. Additional returns are omitted because mw.ustring.gsub's second return value is generally undesirable.
Example using tag arguments[revisa codigo]
{{#invoke:Ustring|match
|{{Module:Ustring}}|%s%s%sif%snot%s[^%s]+%sthen.+%
<!--enter an actual newline character to match '\n'-->%s%s%send
|tag=syntaxhighlight|lang=lua}}
produces:
if not args.tag then
return (what(unpack(args)))
end
local tagargs = {}
for x, y in pairs(args) do
if type(x) ~= 'number' and x ~= 'tag' then tagargs[x] = y end
end
Note that:
<syntaxhighlight lang="lua">{{#invoke:Ustring|match
|{{Module:Ustring}}|%s%s%sif%snot%s[^%s]+%sthen.+%
<!--enter an actual newline character to match '\n'-->%s%s%send}}</syntaxhighlight>
produces:
{{#invoke:Ustring|match
|{{Module:Ustring}}|%s%s%sif%snot%s[^%s]+%sthen.+%
<!--enter an actual newline character to match '\n'-->%s%s%send}}
Errors[revisa codigo]
Errors from accessing {escape|mode=kill|mw.ustring}} should be maintained, e.g.:
{{#invoke:Ustring|xyzzy}}
should produce:
and
{{#invoke:Ustring|maxPatternLength}}
should produce: