90 lines
1.7 KiB
Lua
90 lines
1.7 KiB
Lua
-- For luaJit compatibility.
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if table.unpack == nil then
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table.unpack = unpack
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end
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local Rune = {}
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local metatable = {
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__index = Rune,
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__tostring = function( r )
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return r.string
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end,
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__len = function( r )
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return RL.GetCodepointCount( r.string )
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end,
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__eq = function( r1, r2 )
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return r1.string == r2.string
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end,
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__concat = function( a, b )
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return tostring( a )..tostring( b )
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end,
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}
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function Rune:new( string )
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local object = setmetatable( {}, metatable )
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object.string = string or ""
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return object
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end
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function Rune:set( string )
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self.string = string or ""
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end
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function Rune:serialize()
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return "Rune:new("..self.string..")"
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end
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function Rune:clone()
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return Rune:new( self.string )
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end
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function Rune:len()
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return RL.GetCodepointCount( self.string )
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end
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function Rune:getCodepoints()
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return RL.LoadCodepoints( self.string )
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end
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function Rune:getCodepoint( index )
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local codepoint = RL.GetCodepoint( self.string, index )
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return codepoint
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end
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function Rune:getCodepointSize( index )
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local _, codepointSize = RL.GetCodepoint( self.string, index )
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return codepointSize
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end
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function Rune:insert( pos, string )
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local codepoints = self:getCodepoints()
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for i, codepoint in ipairs( RL.LoadCodepoints( string ) ) do
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table.insert( codepoints, pos + i - 1, codepoint )
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end
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self.string = RL.LoadUTF8( codepoints )
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end
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function Rune:sub( i, j )
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local codepoints = self:getCodepoints()
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return RL.LoadUTF8( { table.unpack( codepoints, i, j ) } )
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end
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function Rune:gsub( pattern, repl )
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return string.gsub( self.string, pattern, repl )
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end
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function Rune:split( delimiter )
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local splits = {}
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for str in string.gmatch( self.string, "([^"..delimiter.."]+)" ) do
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table.insert( splits, str )
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end
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return splits
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end
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return Rune
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