97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
// Copyright (c) 2010, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file text_file_reader.h
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/// @see text_file_reader.cpp
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/// @ingroup utility
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///
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#pragma once
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#ifndef AGI_PRE
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#include <fstream>
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#include <iconv.h>
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#include <wx/dynarray.h>
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#include <wx/string.h>
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#endif
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/// @class TextFileReader
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/// @brief A line-based text file reader
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class TextFileReader {
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private:
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/// Encoding of the file being read
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wxString encoding;
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std::ifstream file;
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iconv_t conv;
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bool trim;
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bool readComplete;
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// Iconv buffers and state
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wchar_t outbuf[256];
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wchar_t *currout;
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wchar_t *outptr;
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size_t outbytesleft;
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/// Current line number
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unsigned int currentLine;
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/// @brief Read a single wchar_t from the file
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wchar_t GetWChar();
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TextFileReader(const TextFileReader&);
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TextFileReader& operator=(const TextFileReader&);
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public:
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/// @brief Constructor
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/// @param filename File to open
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/// @param enc Encoding to use, or empty to autodetect
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/// @param trim Whether to trim whitespace from lines read
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TextFileReader(wxString filename,wxString encoding=L"", bool trim=true);
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/// @brief Destructor
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~TextFileReader();
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/// @brief Read a line from the file
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/// @return The line, possibly trimmed
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wxString ReadLineFromFile();
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/// @brief Check if there are any more lines to read
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bool HasMoreLines();
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/// @brief Get the file encoding used by this reader
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/// @return "unknown", "binary", or a character encoding name
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wxString GetCurrentEncoding();
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/// @brief Attempt to detect a file's encoding
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/// @param filename The file to check
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/// @return "unknown", "binary", or a character encoding name
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static wxString GetEncoding(wxString const& filename);
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};
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