Comma: lib/basic/Pragmas.cpp Source File

00001 //===-- basic/Pragmas.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/Pragmas.h"
00010 
00011 #include <cstring>
00012 
00013 using namespace comma::pragma;
00014 
00015 namespace {
00016 
00017 static const char *pragmaNames[] = {
00018     "Assert",
00019     "Import"
00020 };
00021 
00022 } // end anonymous namespace.
00023 
00024 const char *comma::pragma::getPragmaString(PragmaID ID)
00025 {
00026     return pragmaNames[ID - FIRST_PRAGMA];
00027 }
00028 
00029 PragmaID comma::pragma::getPragmaID(const char *start, const char *end)
00030 {
00031     size_t len = end - start;
00032 
00033     for (unsigned cursor = FIRST_PRAGMA; cursor <= LAST_PRAGMA; ++cursor) {
00034         PragmaID ID = static_cast<PragmaID>(cursor);
00035         const char *name = getPragmaString(ID);
00036         if (::strlen(name) == len && strncmp(name, start, len) == 0)
00037             return ID;
00038     }
00039     return UNKNOWN_PRAGMA;
00040 }