2014-10-27 18:43:09 -04:00
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/*
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AngelCode Scripting Library
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2017-11-20 08:02:33 -05:00
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Copyright (c) 2003-2015 Andreas Jonsson
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2014-10-27 18:43:09 -04:00
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
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must not claim that you wrote the original software. If you use
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this software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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The original version of this library can be located at:
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http://www.angelcode.com/angelscript/
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Andreas Jonsson
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andreas@angelcode.com
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*/
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//
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// as_scriptcode.cpp
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//
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// A container class for the script code to be compiled
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//
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#include "as_config.h"
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#include "as_scriptcode.h"
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BEGIN_AS_NAMESPACE
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asCScriptCode::asCScriptCode()
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{
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lineOffset = 0;
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code = 0;
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codeLength = 0;
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sharedCode = false;
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}
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asCScriptCode::~asCScriptCode()
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{
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if( !sharedCode && code )
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{
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asDELETEARRAY(code);
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}
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}
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int asCScriptCode::SetCode(const char *in_name, const char *in_code, bool in_makeCopy)
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{
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return SetCode(in_name, in_code, 0, in_makeCopy);
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}
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int asCScriptCode::SetCode(const char *in_name, const char *in_code, size_t in_length, bool in_makeCopy)
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{
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if( !in_code) return asINVALID_ARG;
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this->name = in_name ? in_name : "";
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if( !sharedCode && code )
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asDELETEARRAY(code);
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if( in_length == 0 )
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in_length = strlen(in_code);
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if( in_makeCopy )
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{
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codeLength = in_length;
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sharedCode = false;
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code = asNEWARRAY(char, in_length);
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if( code == 0 )
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return asOUT_OF_MEMORY;
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memcpy(code, in_code, in_length);
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}
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else
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{
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codeLength = in_length;
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code = const_cast<char*>(in_code);
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sharedCode = true;
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}
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// Find the positions of each line
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linePositions.PushLast(0);
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for( size_t n = 0; n < in_length; n++ )
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if( in_code[n] == '\n' ) linePositions.PushLast(n+1);
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linePositions.PushLast(in_length);
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return asSUCCESS;
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}
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void asCScriptCode::ConvertPosToRowCol(size_t pos, int *row, int *col)
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{
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if( linePositions.GetLength() == 0 )
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{
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if( row ) *row = lineOffset;
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if( col ) *col = 1;
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return;
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}
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// Do a binary search in the buffer
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int max = (int)linePositions.GetLength() - 1;
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int min = 0;
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int i = max/2;
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for(;;)
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{
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if( linePositions[i] < pos )
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{
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// Have we found the largest number < programPosition?
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if( min == i ) break;
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min = i;
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i = (max + min)/2;
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}
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else if( linePositions[i] > pos )
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{
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// Have we found the smallest number > programPoisition?
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if( max == i ) break;
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max = i;
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i = (max + min)/2;
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}
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else
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{
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// We found the exact position
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break;
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}
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}
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if( row ) *row = i + 1 + lineOffset;
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if( col ) *col = (int)(pos - linePositions[i]) + 1;
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}
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bool asCScriptCode::TokenEquals(size_t pos, size_t len, const char *str)
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{
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if( pos + len > codeLength ) return false;
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if( strncmp(code + pos, str, len) == 0 && strlen(str) == len )
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return true;
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return false;
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}
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END_AS_NAMESPACE
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