| //===- 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()); |
| } |