diff options
Diffstat (limited to 'tolua++-1.0.93/src/bin/lua/code.lua')
-rw-r--r-- | tolua++-1.0.93/src/bin/lua/code.lua | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/tolua++-1.0.93/src/bin/lua/code.lua b/tolua++-1.0.93/src/bin/lua/code.lua new file mode 100644 index 000000000..5e19b6bbf --- /dev/null +++ b/tolua++-1.0.93/src/bin/lua/code.lua @@ -0,0 +1,105 @@ +-- tolua: code class +-- Written by Waldemar Celes +-- TeCGraf/PUC-Rio +-- Jul 1999 +-- $Id: $ + +-- This code is free software; you can redistribute it and/or modify it. +-- The software provided hereunder is on an "as is" basis, and +-- the author has no obligation to provide maintenance, support, updates, +-- enhancements, or modifications. + +-- global +code_n = 1 + +-- Code class +-- Represents Lua code to be compiled and included +-- in the initialization function. +-- The following fields are stored: +-- text = text code +classCode = { + text = '', +} +classCode.__index = classCode +setmetatable(classCode,classFeature) + +-- register code +function classCode:register (pre) + pre = pre or '' + -- clean Lua code + local s = clean(self.text) + if not s then + --print(self.text) + error("parser error in embedded code") + end + + -- get first line + local _, _, first_line=string.find(self.text, "^([^\n\r]*)") + if string.find(first_line, "^%s*%-%-") then + if string.find(first_line, "^%-%-##") then + first_line = string.gsub(first_line, "^%-%-##", "") + if flags['C'] then + s = string.gsub(s, "^%-%-##[^\n\r]*\n", "") + end + end + else + first_line = "" + end + + -- pad to 16 bytes + local npad = 16 - (#s % 16) + local spad = "" + for i=1,npad do + spad = spad .. "-" + end + s = s..spad + + -- convert to C + output('\n'..pre..'{ /* begin embedded lua code */\n') + output(pre..' int top = lua_gettop(tolua_S);') + output(pre..' static const unsigned char B[] = {\n ') + local t={n=0} + + local b = gsub(s,'(.)',function (c) + local e = '' + t.n=t.n+1 if t.n==15 then t.n=0 e='\n'..pre..' ' end + return format('%3u,%s',strbyte(c),e) + end + ) + output(b..strbyte(" ")) + output('\n'..pre..' };\n') + if first_line and first_line ~= "" then + output(pre..' tolua_dobuffer(tolua_S,(char*)B,sizeof(B),"tolua embedded: '..first_line..'");') + else + output(pre..' tolua_dobuffer(tolua_S,(char*)B,sizeof(B),"tolua: embedded Lua code '..code_n..'");') + end + output(pre..' lua_settop(tolua_S, top);') + output(pre..'} /* end of embedded lua code */\n\n') + code_n = code_n +1 +end + + +-- Print method +function classCode:print (ident,close) + print(ident.."Code{") + print(ident.." text = [["..self.text.."]],") + print(ident.."}"..close) +end + + +-- Internal constructor +function _Code (t) + setmetatable(t,classCode) + append(t) + return t +end + +-- Constructor +-- Expects a string representing the code text +function Code (l) + return _Code { + text = l + } +end + + |