Nestharus
o-o
- Reaction score
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Actually LUA_SERIALIZE_TABLE
Courtesy of http://lua-users.org/wiki/SaveTableToFile
Ported to vjass and LUA_FILE_HEADER
LUA_FILE_HEADER
Test code
Courtesy of http://lua-users.org/wiki/SaveTableToFile
Ported to vjass and LUA_FILE_HEADER
LUA_FILE_HEADER
JASS:
//SerializeTable
/*
lua-users.org/wiki/SaveTableToFile
Save Table to File/Stringtable
Load Table from File/Stringtable
v 0.94
Lua 5.1 compatible
Userdata and indices of these are not saved
Functions are saved via string.dump, so make sure it has no upvalues
References are saved
----------------------------------------------------
table.save( table [, filename] )
Saves a table so it can be called via the table.load function again
table must a object of type 'table'
filename is optional, and may be a string representing a filename or true/1
table.save( table )
on success: returns a string representing the table (stringtable)
(uses a string as buffer, ideal for smaller tables)
table.save( table, true or 1 )
on success: returns a string representing the table (stringtable)
(uses io.tmpfile() as buffer, ideal for bigger tables)
table.save( table, "filename" )
on success: returns 1
(saves the table to file "filename")
on failure: returns as second argument an error msg
----------------------------------------------------
table.load( filename or stringtable )
Loads a table that has been saved via the table.save function
on success: returns a previously saved table
on failure: returns as second argument an error msg
----------------------------------------------------
chillcode, lua-users.org/wiki/SaveTableToFile
Licensed under the same terms as Lua itself.
*/
//! externalblock extension=lua FileExporter $FILENAME$
//! runtextmacro LUA_FILE_HEADER()
//! i writelua("SerializeTable", [[
//////////////////////////////////////////////////////////////////
//code
//! i do
//declare local variables
//exportstring( string )
//returns a "Lua" portable version of the string
//! i local function exportstring( s )
//! i s = string.format( "%q",s )
//to replace
//! i s = string.gsub( s,"\\\n","\\n" )
//! i s = string.gsub( s,"\r","\\r" )
//! i s = string.gsub( s,string.char(26),"\"..string.char(26)..\"" )
//! i return s
//! i end
//The Save Function
//! i function table.save( tbl,filename )
//! i local charS,charE = " ","\n"
//! i local file,err
// create a pseudo file that writes to a string and return the string
//! i if not filename then
//! i file = { write = function( self,newstr ) self.str = self.str..newstr end, str = "" }
//! i charS,charE = "",""
//write table to tmpfile
//! i elseif filename == true or filename == 1 then
//! i charS,charE,file = "","",io.tmpfile()
//write table to file
//use io.open here rather than io.output, since in windows when clicking on a file opened with io.output will create an error
//! i else
//! i file,err = io.open( filename, "w" )
//! i if err then return _,err end
//! i end
//initiate variables for save procedure
//! i local tables,lookup = { tbl },{ [tbl] = 1 }
//! i file:write( "return {"..charE )
//! i for idx,t in ipairs( tables ) do
//! i if filename and filename ~= true and filename ~= 1 then
//! i file:write( "-- Table: {"..idx.."}"..charE )
//! i end
//! i file:write( "{"..charE )
//! i local thandled = {}
//! i for i,v in ipairs( t ) do
//! i thandled<i> = true
//escape functions and userdata
//! i if type( v ) ~= "userdata" then
//only handle value
//! i if type( v ) == "table" then
//! i if not lookup[v] then
//! i table.insert( tables, v )
//! i lookup[v] = #tables
//! i end
//! i file:write( charS.."{"..lookup[v].."},"..charE )
//! i elseif type( v ) == "function" then
//! i file:write( charS.."loadstring("..exportstring(string.dump( v )).."),"..charE )
//! i else
//! i local value = ( type( v ) == "string" and exportstring( v ) ) or tostring( v )
//! i file:write( charS..value..","..charE )
//! i end
//! i end
//! i end
//! i for i,v in pairs( t ) do
//escape functions and userdata
//! i if (not thandled<i>) and type( v ) ~= "userdata" then
//handle index
//! i if type( i ) == "table" then
//! i if not lookup<i> then
//! i table.insert( tables,i )
//! i lookup<i> = #tables
//! i end
//! i file:write( charS.."[{"..lookup<i>.."}]=" )
//! i else
//! i local index = ( type( i ) == "string" and "["..exportstring( i ).."]" ) or string.format( "[%d]",i )
//! i file:write( charS..index.."=" )
//! i end
//handle value
//! i if type( v ) == "table" then
//! i if not lookup[v] then
//! i table.insert( tables,v )
//! i lookup[v] = #tables
//! i end
//! i file:write( "{"..lookup[v].."},"..charE )
//! i elseif type( v ) == "function" then
//! i file:write( "loadstring("..exportstring(string.dump( v )).."),"..charE )
//! i else
//! i local value = ( type( v ) == "string" and exportstring( v ) ) or tostring( v )
//! i file:write( value..","..charE )
//! i end
//! i end
//! i end
//! i file:write( "},"..charE )
//! i end
//! i file:write( "}" )
//Return Values
//return stringtable from string
//! i if not filename then
//set marker for stringtable
//! i return file.str.."--|"
//return stringttable from file
//! i elseif filename == true or filename == 1 then
//! i file:seek ( "set" )
//no need to close file, it gets closed and removed automatically
//set marker for stringtable
//! i return file:read( "*a" ).."--|"
//close file and return 1
//! i else
//! i file:close()
//! i return 1
//! i end
//! i end
//The Load Function
//! i function table.load( sfile )
//catch marker for stringtable
//! i if string.sub( sfile,-3,-1 ) == "--|" then
//! i tables,err = loadstring( sfile )
//! i else
//! i tables,err = loadfile( sfile )
//! i end
//! i if err then return _,err
//! i end
//! i tables = tables()
//! i for idx = 1,#tables do
//! i local tolinkv,tolinki = {},{}
//! i for i,v in pairs( tables[idx] ) do
//! i if type( v ) == "table" and tables[v[1] ] then
//! i table.insert( tolinkv,{ i,tables[v[1] ] } )
//! i end
//! i if type( i ) == "table" and tables[i[1] ] then
//! i table.insert( tolinki,{ i,tables[i[1] ] } )
//! i end
//! i end
//link values, first due to possible changes of indices
//! i for _,v in ipairs( tolinkv ) do
//! i tables[idx][v[1] ] = v[2]
//! i end
//link indices
//! i for _,v in ipairs( tolinki ) do
//! i tables[idx][v[2] ],tables[idx][v[1] ] = tables[idx][v[1] ],nil
//! i end
//! i end
//! i return tables[1]
//! i end
//close do
//! i end
//end code
//////////////////////////////////////////////////////////////////
//! i ]])
//! endexternalblock
</i></i></i></i></i>Test code
JASS:
//! externalblock extension=lua FileExporter $FILENAME$
//! runtextmacro LUA_FILE_HEADER()
//! i dofile("SerializeTable")
//! i local t = {}
//! i t.name = "boo"
//! i t[15] = "rawr"
//! i t.growl = {}
//! i t.growl.blemish = "kaka"
//! i local tstr = table.save(t)
//! i logf(tstr .. "\n\n")
//! i local ts = table.load(tstr)
//! i logf(ts.name)
//! i logf(ts[15])
//! i logf(ts.growl.blemish)
//! i ts.growl.boo = "hello"
//! endexternalblock
