Comma: lib/basic/Attributes.cpp Source File

00001 //===-- basic/Attributes.cpp ---------------------------------- -*- C++ -*-===//
00002 //
00003 // This file is distributed under the MIT license. See LICENSE.txt for details.
00004 //
00005 // Copyright (C) 2009, Stephen Wilson
00006 //
00007 //===----------------------------------------------------------------------===//
00008 
00009 #include "comma/basic/Attributes.h"
00010 #include "comma/basic/IdentifierPool.h"
00011 
00012 #include <cstring>
00013 
00014 using namespace comma::attrib;
00015 
00016 namespace {
00017 
00018 static const char *attributeNames[] = {
00019     "First",
00020     "Pos",
00021     "Val",
00022     "Last",
00023     "Range",
00024 };
00025 
00026 } // end anonymous namespace.
00027 
00028 const char *comma::attrib::getAttributeString(AttributeID ID)
00029 {
00030     return attributeNames[ID - FIRST_ATTRIB];
00031 }
00032 
00033 void comma::attrib::markAttributeIdentifiers(IdentifierPool &idPool)
00034 {
00035     for (unsigned cursor = FIRST_ATTRIB; cursor <= LAST_ATTRIB; ++cursor) {
00036         AttributeID ID = static_cast<AttributeID>(cursor);
00037         const char *name = getAttributeString(ID);
00038         IdentifierInfo &idInfo = idPool.getIdentifierInfo(name);
00039         idInfo.setAttributeID(ID);
00040     }
00041 }
00042 
00043 AttributeID comma::attrib::getAttributeID(const char *start, const char *end)
00044 {
00045     size_t len = end - start;
00046 
00047     for (unsigned cursor = FIRST_ATTRIB; cursor <= LAST_ATTRIB; ++cursor) {
00048         AttributeID ID = static_cast<AttributeID>(cursor);
00049         const char *name = getAttributeString(ID);
00050         if (::strlen(name) == len && strncmp(name, start, len) == 0)
00051             return ID;
00052     }
00053     return UNKNOWN_ATTRIBUTE;
00054 }