7acc70ee62
Added trivial float support Added local labels and vastly improved label support Fixed some crash bugs
136 lines
2.7 KiB
C++
Executable File
136 lines
2.7 KiB
C++
Executable File
/* AMX Assembler
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* Copyright (C)2004 David "BAILOPAN" Anderson
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*
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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 damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* Version: $Id$
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*/
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#include "amxasm.h"
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bool is_valid_symbol_marker(char c)
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{
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if (c >= '0' && c <= '9')
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return true;
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if (isletter(c))
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return true;
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return false;
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}
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bool IsValidSymbol(std::string &text)
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{
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size_t i = 0;
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if (!text.size() || !isletter(text[0]))
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{
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return false;
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}
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for (i=0; i<text.size(); i++)
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{
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if (!is_valid_symbol_marker(text[i]))
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{
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return false;
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}
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}
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return true;
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}
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void SymbolList::Clear()
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{
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std::vector<SymbolList::Symbol *>::iterator i;
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for (i=List.begin(); i!=List.end(); i++)
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{
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if ( (*i) )
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delete (*i);
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}
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List.clear();
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}
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SymbolList::~SymbolList()
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{
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Clear();
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}
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bool SymbolList::Symbol::IsEqual(std::string &s)
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{
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return (sym.compare(s)==0);
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}
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SymbolList::Symbol* SymbolList::AddSymbol(const char *szSym, SymbolType type, int line)
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{
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SymbolList::Symbol *S = new SymbolList::Symbol;
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S->line = line;
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S->type = type;
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S->sym.assign(szSym);
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List.push_back(S);
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return S;
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}
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SymbolList::Symbol *SymbolList::AddSymbol(std::string &sym, SymbolType type, int line)
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{
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SymbolList::Symbol *S = new SymbolList::Symbol;
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S->line = line;
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S->type = type;
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S->sym.assign(sym);
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List.push_back(S);
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return S;
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}
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SymbolList::Symbol* SymbolList::FindSymbol(std::string &sym)
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{
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std::vector<Symbol*>::iterator i;
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for (i=List.begin(); i!=List.end(); i++)
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{
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if ((*i)->IsEqual(sym))
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return (*i);
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}
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return NULL;
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}
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void SymbolList::PrintTable()
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{
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std::vector<Symbol*>::iterator i;
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for (i=List.begin(); i!=List.end(); i++)
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{
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printf("Symbol \"%s\" defined on line %d\n", (*i)->sym.c_str(), (*i)->line);
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}
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}
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bool SymbolList::EraseSymbol(std::string &sym)
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{
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std::vector<SymbolList::Symbol *>::iterator i;
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for (i=List.begin(); i!=List.end(); i++)
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{
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if ( (*i)->IsEqual(sym) )
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{
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List.erase(i);
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return true;
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}
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}
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return false;
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}
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