Aegisub/aegilib/src/tokenizer.cpp

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// Copyright (c) 2008, 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/GORGONSUB
//
// Website: http://www.aegisub.net
// Contact: mailto:amz@aegisub.net
//
#include "tokenizer.h"
#include "exception.h"
#include "utils.h"
#include <wx/tokenzr.h>
using namespace Gorgonsub;
///////////////
// Constructor
Tokenizer::Tokenizer(const String &_string,wxChar _token,size_t start)
: string(_string), pos(start), token(_token)
{
str = const_cast<wxChar*> (string.c_str());
}
Tokenizer::~Tokenizer()
{
}
////////////
// Has more
bool Tokenizer::HasMoreTokens()
{
return pos < string.Length();
}
////////////////
// Get position
int Tokenizer::GetPosition()
{
return (int) pos;
}
/////////////
// Get token
String Tokenizer::GetString(bool trim)
{
// Has any more?
if (!HasMoreTokens()) THROW_GORGON_EXCEPTION(Exception::Invalid_Token);
// Find token
size_t len = string.Length();
size_t oldPos = pos;
bool found = false;
for (size_t i=pos;i<len;i++) {
if (str[i] == token) {
found = true;
str[i] = 0;
pos = i+1;
break;
}
}
if (!found) pos = len;
// Trimmed
if (trim) {
return StringPtrTrim(str+oldPos,pos-oldPos-1,0);
}
// Untrimmed
return wxString(str+oldPos,pos-oldPos-1);
}
//////////////////
// Get as integer
int Tokenizer::GetInt()
{
return StringToInt(GetString());
}
////////////////
// Get as float
float Tokenizer::GetFloat()
{
double value;
wxString temp = GetString();
temp.ToDouble(&value);
return (float) value;
}
//////////////////
// Get as boolean
bool Tokenizer::GetBool()
{
return GetInt() != 0;
}
//////////////////////////////////
// Gets all remaining string data
String Tokenizer::GetTheRest()
{
// Make string
size_t size = string.Length()-pos;
size_t oldPos = pos;
pos += size;
return String(str+oldPos,size);
}