Aegisub/aegisub/src/subtitle_format_ass.cpp

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// Copyright (c) 2006, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
//
// $Id$
/// @file subtitle_format_ass.cpp
/// @brief Reading/writing of SSA-lineage subtitles
/// @ingroup subtitle_io
///
///////////
// Headers
#include "config.h"
#include "ass_dialogue.h"
#include "subtitle_format_ass.h"
#include "text_file_reader.h"
#include "text_file_writer.h"
/// @brief Can read?
/// @param filename
/// @return
///
bool ASSSubtitleFormat::CanReadFile(wxString filename) {
return (filename.Right(4).Lower() == _T(".ass") || filename.Right(4).Lower() == _T(".ssa"));
}
/// @brief Get name
/// @return
///
wxString ASSSubtitleFormat::GetName() {
return _T("Advanced Substation Alpha");
}
/// @brief Get read wildcards
/// @return
///
wxArrayString ASSSubtitleFormat::GetReadWildcards() {
wxArrayString formats;
formats.Add(_T("ass"));
formats.Add(_T("ssa"));
return formats;
}
/// @brief Get write wildcards
/// @return
///
wxArrayString ASSSubtitleFormat::GetWriteWildcards() {
wxArrayString formats;
formats.Add(_T("ass"));
formats.Add(_T("ssa"));
return formats;
}
/// @brief Read file
/// @param filename
/// @param encoding
///
void ASSSubtitleFormat::ReadFile(wxString filename,wxString encoding) {
using namespace std;
// Reader
TextFileReader file(filename,encoding);
int version = 1;
if (filename.Right(4).Lower() == _T(".ssa")) version = 0;
// Parse file
wxString curgroup;
int lasttime = -1;
wxString wxbuffer;
while (file.HasMoreLines()) {
// Reads line
wxbuffer = file.ReadLineFromFile();
// Make sure that the first non-blank non-comment non-group-header line
// is really [Script Info]
if (curgroup.IsEmpty() && !wxbuffer.IsEmpty() && wxbuffer[0] != _T(';') && wxbuffer[0] != _T('[')) {
curgroup = _T("[Script Info]");
lasttime = AddLine(curgroup,curgroup,lasttime,version,&curgroup);
}
// Convert v4 styles to v4+ styles
if (!wxbuffer.IsEmpty() && wxbuffer[0] == _T('[')) {
// Ugly hacks to allow intermixed v4 and v4+ style sections
wxString low = wxbuffer.Lower();
if (low == _T("[v4 styles]")) {
wxbuffer = _T("[V4+ Styles]");
curgroup = wxbuffer;
version = 0;
}
else if (low == _T("[v4+ styles]")) {
wxbuffer = _T("[V4+ Styles]");
curgroup = wxbuffer;
version = 1;
}
else if (low == _T("[v4++ styles]")) {
wxbuffer = _T("[V4+ Styles]");
curgroup = wxbuffer;
version = 2;
}
// Not-so-special case for other groups, just set it
else {
curgroup = wxbuffer;
// default from extension in all other sections
//version = 1;
//if (filename.Right(4).Lower() == _T(".ssa")) version = 0;
}
}
// Add line
try {
lasttime = AddLine(wxbuffer,curgroup,lasttime,version,&curgroup);
}
catch (const wchar_t *err) {
Clear();
throw wxString(_T("Error processing line: ")) + wxbuffer + _T(": ") + wxString(err);
}
catch (...) {
Clear();
throw wxString(_T("Error processing line: ")) + wxbuffer;
}
}
// Add one last empty line in case it didn't end with one
if (!wxbuffer.IsEmpty()) AddLine(_T(""),curgroup,lasttime,version);
}
/// @brief Can write to file?
/// @param filename
/// @return
///
bool ASSSubtitleFormat::CanWriteFile(wxString filename) {
return (filename.Right(4).Lower() == _T(".ass") || filename.Right(4).Lower() == _T(".ssa"));
}
/// @brief Write file
/// @param _filename
/// @param encoding
///
void ASSSubtitleFormat::WriteFile(wxString _filename,wxString encoding) {
// Open file
TextFileWriter file(_filename,encoding);
bool ssa = _filename.Right(4).Lower() == _T(".ssa");
// Write lines
using std::list;
AssEntry *entry;
for (list<AssEntry*>::iterator cur=Line->begin();cur!=Line->end();) {
// Get entry
entry = *cur;
// Only add a line break if there is a next line
cur++;
bool lineBreak = cur != Line->end();
// Write line
if (ssa) file.WriteLineToFile(entry->GetSSAText(),lineBreak);
else file.WriteLineToFile(entry->GetEntryData(),lineBreak);
}
}