mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Scribunto
synced 2024-12-04 20:58:13 +00:00
109 lines
2.6 KiB
Lua
109 lines
2.6 KiB
Lua
-- Get a fresh copy of the basic ustring
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local old_ustring = package.loaded.ustring
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package.loaded.ustring = nil
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local ustring = require( 'ustring' )
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package.loaded.ustring = old_ustring
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old_ustring = nil
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local util = require 'libraryUtil'
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local checkType = util.checkType
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local gmatch_init = nil
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local gmatch_callback = nil
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local function php_gmatch( s, pattern )
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checkType( 'gmatch', 1, s, 'string' )
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checkType( 'gmatch', 2, pattern, 'string' )
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local re, capt = gmatch_init( s, pattern )
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local pos = 0
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return function()
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local ret
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pos, ret = gmatch_callback( s, re, capt, pos )
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return unpack( ret )
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end, nil, nil
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end
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local gcodepoint_init = nil
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local function php_gcodepoint( s, i, j )
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checkType( 'gcodepoint', 1, s, 'string' )
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checkType( 'gcodepoint', 2, i, 'number', true )
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checkType( 'gcodepoint', 3, j, 'number', true )
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local cp = gcodepoint_init( s, i, j or -1 )
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local pos, len = 1, #cp
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return function ()
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if pos <= len then
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local tmp = cp[pos]
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pos = pos + 1
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return tmp
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end
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end
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end
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function ustring.setupInterface( opt )
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-- Boilerplate
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ustring.setupInterface = nil
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-- Set string limits
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ustring.maxStringLength = opt.stringLengthLimit
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ustring.maxPatternLength = opt.patternLengthLimit
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-- Gmatch
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if mw_interface.gmatch_callback and mw_interface.gmatch_init then
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gmatch_init = mw_interface.gmatch_init
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gmatch_callback = mw_interface.gmatch_callback
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ustring.gmatch = php_gmatch
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end
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mw_interface.gmatch_init = nil
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mw_interface.gmatch_callback = nil
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-- codepoint and gcodepoint
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if mw_interface.gcodepoint_init then
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gcodepoint_init = mw_interface.gcodepoint_init
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ustring.gcodepoint = php_gcodepoint
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end
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mw_interface.gcodepoint_init = nil
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-- Replace pure-lua implementation with php callbacks
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local nargs = {
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char = 0,
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find = 2,
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match = 2,
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gsub = 3,
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}
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for k, v in pairs( mw_interface ) do
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local n = nargs[k] or 1
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if n == 0 then
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ustring[k] = v
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else
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-- Avoid PHP warnings for missing arguments by checking before
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-- calling PHP.
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ustring[k] = function ( ... )
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if select( '#', ... ) < n then
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error( "too few arguments to mw.ustring." .. k, 2 )
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end
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return v( ... )
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end
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end
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end
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mw_interface = nil
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-- Replace upper/lower with mw.language versions if available
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if mw and mw.language then
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local lang = mw.language.getContentLanguage()
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ustring.upper = function ( s )
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return lang:uc( s )
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end
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ustring.lower = function ( s )
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return lang:lc( s )
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end
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end
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-- Register this library in the "mw" global
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mw = mw or {}
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mw.ustring = ustring
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package.loaded['mw.ustring'] = ustring
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end
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return ustring
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