MCSymbol.cpp revision 8906ff1b9dfde28f1ff00706643ca10843b26e01
1//===- lib/MC/MCSymbol.cpp - MCSymbol implementation ----------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "llvm/MC/MCSymbol.h" 11#include "llvm/Support/raw_ostream.h" 12 13using namespace llvm; 14 15// Sentinel value for the absolute pseudo section. 16const MCSection *MCSymbol::AbsolutePseudoSection = 17 reinterpret_cast<const MCSection *>(1); 18 19/// NeedsQuoting - Return true if the string \arg Str needs quoting, i.e., it 20/// does not match [a-zA-Z_.][a-zA-Z0-9_.]*. 21// 22// FIXME: This could be more permissive, do we care? 23static inline bool NeedsQuoting(const StringRef &Str) { 24 if (Str.empty()) 25 return true; 26 27 // Check that first character is in [a-zA-Z_.]. 28 if (!((Str[0] >= 'a' && Str[0] <= 'z') || 29 (Str[0] >= 'A' && Str[0] <= 'Z') || 30 (Str[0] == '_' || Str[0] == '.'))) 31 return true; 32 33 // Check subsequent characters are in [a-zA-Z0-9_.]. 34 for (unsigned i = 1, e = Str.size(); i != e; ++i) 35 if (!((Str[i] >= 'a' && Str[i] <= 'z') || 36 (Str[i] >= 'A' && Str[i] <= 'Z') || 37 (Str[i] >= '0' && Str[i] <= '9') || 38 (Str[i] == '_' || Str[i] == '.'))) 39 return true; 40 41 return false; 42} 43 44void MCSymbol::print(raw_ostream &OS) const { 45 if (NeedsQuoting(getName())) 46 OS << '"' << getName() << '"'; 47 else 48 OS << getName(); 49} 50 51void MCSymbol::dump() const { 52 print(errs()); 53} 54