66 lines
2 KiB
C++
66 lines
2 KiB
C++
// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/// @file auto4_lua_scriptreader.cpp
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/// @brief Script-file reader for Lua 5.1-based scripting engine
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/// @ingroup scripting
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///
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#include "config.h"
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#ifdef WITH_AUTO4_LUA
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#include "auto4_lua_scriptreader.h"
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#include <libaegisub/io.h>
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#include <libaegisub/charset_conv.h>
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#include "charset_detect.h"
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#include "compat.h"
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namespace Automation4 {
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LuaScriptReader::LuaScriptReader(wxString const& filename)
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: conv(new agi::charset::IconvWrapper(CharSetDetect::GetEncoding(filename).c_str(), "utf-8", false))
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, file(agi::io::Open(from_wx(filename)))
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{
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}
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LuaScriptReader::~LuaScriptReader() { }
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const char *LuaScriptReader::Read(size_t *bytes_read) {
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char in_buf[512];
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file->read(in_buf, sizeof(in_buf));
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const char *in = in_buf;
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char *out = buf;
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size_t in_bytes = file->gcount();
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size_t out_bytes = sizeof(buf);
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conv->Convert(&in, &in_bytes, &out, &out_bytes);
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*bytes_read = out - buf;
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// Skip the bom
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if (*bytes_read >= 3 && buf[0] == -17 && buf[1] == -69 && buf[2] == -65) {
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*bytes_read -= 3;
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return buf + 3;
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}
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return buf;
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}
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const char* LuaScriptReader::reader_func(lua_State *, void *data, size_t *size) {
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return static_cast<LuaScriptReader*>(data)->Read(size);
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}
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}
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#endif // WITH_AUTO4_LUA
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