Difference between revisions of "Module:String"
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remove seemingly unnecessary letter
>Yurik (updated from enwiki) |
>Amire80 (remove seemingly unnecessary letter) |
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| (4 intermediate revisions by 3 users not shown) | |||
| Line 113: | Line 113: | ||
Usage: | Usage: | ||
{{#invoke:String|match|source_string|pattern_string|start_index|match_number|plain_flag| | {{#invoke:String|match|source_string|pattern_string|start_index|match_number|plain_flag|nomatch}} | ||
OR | OR | ||
{{#invoke:String|pos|s=source_string|pattern=pattern_string|start=start_index | {{#invoke:String|pos|s=source_string|pattern=pattern_string|start=start_index | ||
| Line 143: | Line 143: | ||
For information on constructing Lua patterns, a form of [regular expression], see: | For information on constructing Lua patterns, a form of [regular expression], see: | ||
* | * https://www.lua.org/manual/5.1/manual.html#5.4.1 | ||
* | * https://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Patterns | ||
* | * https://www.mediawiki.org/wiki/Extension:Scribunto/Lua_reference_manual#Ustring_patterns | ||
]] | ]] | ||
function str. | -- This sub-routine is exported for use in other modules | ||
function str._match( s, pattern, start, match_index, plain, nomatch ) | |||
if s == '' then | if s == '' then | ||
return str._error( 'Target string is empty' ); | return str._error( 'Target string is empty' ); | ||
| Line 163: | Line 156: | ||
return str._error( 'Pattern string is empty' ); | return str._error( 'Pattern string is empty' ); | ||
end | end | ||
start = tonumber(start) or 1 | |||
if math.abs(start) < 1 or math.abs(start) > mw.ustring.len( s ) then | if math.abs(start) < 1 or math.abs(start) > mw.ustring.len( s ) then | ||
return str._error( 'Requested start is out of range' ); | return str._error( 'Requested start is out of range' ); | ||
| Line 214: | Line 208: | ||
return result; | return result; | ||
end | end | ||
end | |||
-- This is the entry point for #invoke:String|match | |||
function str.match( frame ) | |||
local new_args = str._getParameters( frame.args, {'s', 'pattern', 'start', 'match', 'plain', 'nomatch'} ); | |||
local s = new_args['s'] or ''; | |||
local start = tonumber( new_args['start'] ) or 1; | |||
local plain_flag = str._getBoolean( new_args['plain'] or false ); | |||
local pattern = new_args['pattern'] or ''; | |||
local match_index = math.floor( tonumber(new_args['match']) or 1 ); | |||
local nomatch = new_args['nomatch']; | |||
return str._match( s, pattern, start, match_index, plain, nomatch ) | |||
end | end | ||