mirror of
https://github.com/kevinbentley/Descent3.git
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129 lines
3.2 KiB
C++
129 lines
3.2 KiB
C++
/*
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AngelCode Scripting Library
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Copyright (c) 2003-2008 Andreas Jonsson
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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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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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if (!sharedCode && code) {
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asDELETEARRAY(code);
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}
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}
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int asCScriptCode::SetCode(const char *name, const char *code, bool makeCopy) {
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return SetCode(name, code, strlen(code), makeCopy);
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}
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int asCScriptCode::SetCode(const char *name, const char *code, size_t length, bool makeCopy) {
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this->name = name;
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if (!sharedCode && this->code) {
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asDELETEARRAY(this->code);
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}
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if (length == 0)
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length = strlen(code);
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if (makeCopy) {
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this->code = asNEWARRAY(char, length);
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memcpy((char *)this->code, code, length);
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codeLength = length;
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sharedCode = false;
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} else {
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codeLength = length;
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this->code = const_cast<char *>(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 < length; n++)
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if (code[n] == '\n')
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linePositions.PushLast(n + 1);
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linePositions.PushLast(length);
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return 0;
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}
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void asCScriptCode::ConvertPosToRowCol(size_t pos, int *row, int *col) {
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if (linePositions.GetLength() == 0) {
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if (row)
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*row = lineOffset;
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if (col)
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*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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if (linePositions[i] < pos) {
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// Have we found the largest number < programPosition?
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if (min == i)
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break;
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min = i;
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i = (max + min) / 2;
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} else if (linePositions[i] > pos) {
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// Have we found the smallest number > programPoisition?
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if (max == i)
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break;
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max = i;
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i = (max + min) / 2;
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} else {
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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)
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*row = i + 1 + lineOffset;
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if (col)
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*col = (int)(pos - linePositions[i]) + 1;
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}
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END_AS_NAMESPACE
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