Difference between revisions of "Module:Ustring"

From blackwiki
Jump to navigation Jump to search
blackwiki>Ans
(to consolidate common function to Module:LuaCall, for ease to maintain bug fix and improvement. Some bug fixes and improvements has been done there but not yet here. One of common functions like tostringOrNumber() will also be shared there. This is not proxying, but to share common code with other modules.)
blackwiki>Pppery
(Undid revision 886758119 by Ans (talk) The thing is, though, that Module:Ustring is the only module on all of Wikipedia that calls Module:LuaCall, so no "common code" argument can be made with p.import, which is in any case out of scope of the module)
Line 1: Line 1:
local p = require("Module:LuaCall").import(mw.ustring)
+
local p = {}
  
for k, v in pairs(p) do
+
for k, v in pairs(mw.ustring) do
 
p[k] = function(frame)
 
p[k] = function(frame)
 
local args = frame.args
 
local args = frame.args
--for _, v in ipairs(args) do
+
for _, v in ipairs(args) do
-- args[_] = tonumber(v) or v:gsub("^\\", "", 1)
+
args[_] = tonumber(v) or v:gsub("^\\", "", 1)
--end
+
end
 
if args.tag then
 
if args.tag then
local tag = {name = args.tag, content = v(frame), args = {}}
+
local tag = {name = args.tag, content = mw.ustring[k](unpack(args)), args = {}}
 
for x, y in pairs(args) do
 
for x, y in pairs(args) do
 
if type(x)~='number' and x~='tag' then tag.args[x] = y end
 
if type(x)~='number' and x~='tag' then tag.args[x] = y end
Line 14: Line 14:
 
return frame:extensionTag(tag)
 
return frame:extensionTag(tag)
 
end
 
end
return (v(frame))
+
return (mw.ustring[k](unpack(args)))
 
end
 
end
 
end
 
end
  
 
return p
 
return p

Revision as of 12:34, 8 March 2019

This module directly imports all functions from the

  1. redirect Template:Scribunto 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

  1. redirect Template:Scribunto

Usage

{{#invoke:Ustring|function_name|arg1|arg2|...}} is equivalent to

  1. redirect Template:Scribunto

Example using mw.ustring.sub

{{#invoke:Ustring|sub|abcde|2|4}}

produces:

bcd

Example using mw.ustring.gsub

{{#invoke:Ustring|gsub|1234|23|}}

produces:

14

Example using mw.ustring.char

&#{{#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

{{#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

{{#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:

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

Errors from accessing

  1. redirect Template:Scribunto should be maintained, e.g.:

{{#invoke:Ustring|xyzzy}}

should produce:

Template:Script error

and

{{#invoke:Ustring|maxPatternLength}}

should produce:

Template:Script error

See also


local p = {}

for k, v in pairs(mw.ustring) do
	p[k] = function(frame)
		local args = frame.args
		for _, v in ipairs(args) do
			args[_] = tonumber(v) or v:gsub("^\\", "", 1)
		end
		if args.tag then
			local tag = {name = args.tag, content = mw.ustring[k](unpack(args)), args = {}}
			for x, y in pairs(args) do
				if type(x)~='number' and x~='tag' then tag.args[x] = y end
			end
			return frame:extensionTag(tag)
		end
		return (mw.ustring[k](unpack(args)))
	end
end

return p