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