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//===- lib/MC/MCSymbol.cpp - MCSymbol implementation ----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
/// NeedsQuoting - Return true if the string \arg Str needs quoting, i.e., it
/// does not match [a-zA-Z_.][a-zA-Z0-9_.]*.
//
// FIXME: This could be more permissive, do we care?
static inline bool NeedsQuoting(const StringRef &Str) {
if (Str.empty())
return true;
// Check that first character is in [a-zA-Z_.].
if (!((Str[0] >= 'a' && Str[0] <= 'z') ||
(Str[0] >= 'A' && Str[0] <= 'Z') ||
(Str[0] == '_' || Str[0] == '.')))
return true;
// Check subsequent characters are in [a-zA-Z0-9_.].
for (unsigned i = 1, e = Str.size(); i != e; ++i)
if (!((Str[i] >= 'a' && Str[i] <= 'z') ||
(Str[i] >= 'A' && Str[i] <= 'Z') ||
(Str[i] >= '0' && Str[i] <= '9') ||
(Str[i] == '_' || Str[i] == '.')))
return true;
return false;
}
void MCSymbol::print(raw_ostream &OS) const {
if (NeedsQuoting(getName()))
OS << '"' << getName() << '"';
else
OS << getName();
}
void MCSymbol::dump() const {
print(errs());
}
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