145 lines
3.4 KiB
Lua
145 lines
3.4 KiB
Lua
--[[
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Copyright (c) 2015 Benjamin Moir <bennyboy.private@hotmail.com.au>
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Copyright (c) 2015 Marrub <marrub@greyserv.net>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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--]]
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local ffi = require("ffi")
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local tokenizer = {}
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local loveToken = ffi.load("LoveToken")
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ffi.cdef([[
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typedef struct
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{
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bool escapeChars;
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bool stripInvalid;
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bool doConvert;
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const char *fromCode;
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const char *toCode;
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const char *stringChars;
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const char *charChars;
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} LT_Config;
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typedef struct
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{
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char *token;
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char *string;
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int pos;
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} LT_Token;
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typedef struct
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{
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bool failure;
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const char *str;
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} LT_AssertInfo;
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void LT_Init(LT_Config initCfg);
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void LT_SetConfig(LT_Config newCfg);
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void LT_Quit();
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bool LT_Assert(bool assertion, const char *str, ...);
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LT_AssertInfo LT_CheckAssert();
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bool LT_OpenFile(const char *filePath);
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void LT_SetPos(int newPos);
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void LT_CloseFile();
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char *LT_ReadNumber();
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char *LT_ReadString(char term);
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char *LT_Escaper(char *str, size_t pos, char escape);
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LT_Token LT_GetToken();
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]])
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local pReturn
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function tokenizer:init(initInfo, filePath)
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loveToken.LT_Init(initInfo)
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loveToken.LT_OpenFile(filePath)
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end
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function tokenizer:assert(assertion, str)
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return loveToken.LT_Assert(assertion, str)
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end
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function tokenizer:checkError()
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ltAssertion = loveToken.LT_CheckAssert()
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if (ltAssertion.str == nil) then
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assert(not ltAssertion.failure, "unknown assertion")
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else
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assert(not ltAssertion.failure, ffi.string(ltAssertion.str))
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end
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end
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function tokenizer:openFile(filePath)
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pReturn = loveToken.LT_OpenFile(filePath)
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tokenizer:checkError()
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return pReturn
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end
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function tokenizer:closeFile()
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loveToken.LT_CloseFile()
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end
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function tokenizer:quit()
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loveToken.LT_CloseFile()
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loveToken.LT_Quit()
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end
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function tokenizer:readNumber()
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pReturn = loveToken.LT_ReadNumber()
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tokenizer:checkError()
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return ffi.string(pReturn)
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end
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function tokenizer:readString(term)
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pReturn = loveToken.LT_ReadString(term)
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tokenizer:checkError()
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return ffi.string(pReturn)
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end
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function tokenizer:escaper(str, pos, escape)
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pReturn = loveToken.LT_Escaper(str, pos, escape)
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tokenizer:checkError()
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return ffi.string(pReturn)
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end
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function tokenizer:getToken()
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pReturn = loveToken.LT_GetToken()
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tokenizer:checkError()
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local lt = {}
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lt.token = ffi.string(pReturn.token)
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lt.string = pReturn.string
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lt.pos = pReturn.pos
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if (pReturn.string ~= nil) then
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lt.string = ffi.string(pReturn.string)
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end
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return lt
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end
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function tokenizer:setPos(newPos)
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loveToken.LT_SetPos(newPos)
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tokenizer:checkError()
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end
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return tokenizer
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