mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
c5f9d8c630
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15042 91177308-0d34-0410-b5e6-96231b3b80d8
120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
//===-- Support/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 SUPPORT_STRINGEXTRAS_H
|
|
#define SUPPORT_STRINGEXTRAS_H
|
|
|
|
#include "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 = (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 itostr(int64_t X) {
|
|
if (X < 0)
|
|
return utostr(static_cast<uint64_t>(-X), true);
|
|
else
|
|
return utostr(static_cast<uint64_t>(X));
|
|
}
|
|
|
|
|
|
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(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);
|
|
return Buffer;
|
|
}
|
|
|
|
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
|