llvm-6502/include/llvm/ADT/StringExtras.h
Misha Brukman 9769ab2226 Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 20:19:05 +00:00

128 lines
3.4 KiB
C++

//===-- llvm/ADT/StringExtras.h - Useful string functions -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains some functions that are useful when dealing with strings.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ADT_STRINGEXTRAS_H
#define LLVM_ADT_STRINGEXTRAS_H
#include "llvm/Support/DataTypes.h"
#include <cctype>
#include <cstdio>
#include <string>
namespace llvm {
static inline std::string utohexstr(uint64_t X) {
char Buffer[40];
char *BufPtr = Buffer+39;
*BufPtr = 0; // Null terminate buffer...
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
unsigned char Mod = static_cast<unsigned char>(X) & 15;
if (Mod < 10)
*--BufPtr = '0' + Mod;
else
*--BufPtr = 'A' + Mod-10;
X >>= 4;
}
return std::string(BufPtr);
}
static inline std::string utostr(unsigned long long X, bool isNeg = false) {
char Buffer[40];
char *BufPtr = Buffer+39;
*BufPtr = 0; // Null terminate buffer...
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
*--BufPtr = '0' + char(X % 10);
X /= 10;
}
if (isNeg) *--BufPtr = '-'; // Add negative sign...
return std::string(BufPtr);
}
static inline std::string utostr(unsigned long X, bool isNeg = false) {
return utostr(static_cast<unsigned long long>(X), isNeg);
}
static inline std::string utostr(unsigned X, bool isNeg = false) {
char Buffer[20];
char *BufPtr = Buffer+19;
*BufPtr = 0; // Null terminate buffer...
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
*--BufPtr = '0' + char(X % 10);
X /= 10;
}
if (isNeg) *--BufPtr = '-'; // Add negative sign...
return std::string(BufPtr);
}
static inline std::string itostr(long long X) {
if (X < 0)
return utostr(static_cast<uint64_t>(-X), true);
else
return utostr(static_cast<uint64_t>(X));
}
static inline std::string itostr(long X) {
if (X < 0)
return utostr(static_cast<uint64_t>(-X), true);
else
return utostr(static_cast<uint64_t>(X));
}
static inline std::string itostr(int X) {
if (X < 0)
return utostr(static_cast<unsigned>(-X), true);
else
return utostr(static_cast<unsigned>(X));
}
static inline std::string ftostr(double V) {
char Buffer[200];
sprintf(Buffer, "%20.6e", V);
char *B = Buffer;
while (*B == ' ') ++B;
return B;
}
static inline std::string LowercaseString(const std::string &S) {
std::string result(S);
for (unsigned i = 0; i < S.length(); ++i)
if (isupper(result[i]))
result[i] = char(tolower(result[i]));
return result;
}
/// getToken - This function extracts one token from source, ignoring any
/// leading characters that appear in the Delimiters string, and ending the
/// token at any of the characters that appear in the Delimiters string. If
/// there are no tokens in the source string, an empty string is returned.
/// The Source source string is updated in place to remove the returned string
/// and any delimiter prefix from it.
std::string getToken(std::string &Source,
const char *Delimiters = " \t\n\v\f\r");
} // End llvm namespace
#endif