-//===-- Support/StringExtras.h - Useful string functions ---------*- 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.
//
#define SUPPORT_STRINGEXTRAS_H
#include "Support/DataTypes.h"
+#include <cctype>
+#include <cstdio>
#include <string>
-#include <stdio.h>
+
+namespace llvm {
static inline std::string utohexstr(uint64_t X) {
char Buffer[40];
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
- unsigned Mod = X & 15;
+ unsigned char Mod = (unsigned char)X & 15;
if (Mod < 10)
*--BufPtr = '0' + Mod;
else
return std::string(BufPtr);
}
-static inline std::string utostr(uint64_t X, bool isNeg = false) {
+static inline std::string utostr(unsigned long long X, bool isNeg = false) {
char Buffer[40];
char *BufPtr = Buffer+39;
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
- *--BufPtr = '0' + (X % 10);
+ *--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((uint64_t)-X, true);
- else
- return utostr((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;
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
- *--BufPtr = '0' + (X % 10);
+ *--BufPtr = '0' + char(X % 10);
X /= 10;
}
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((unsigned)-X, true);
+ return utostr(static_cast<unsigned>(-X), true);
else
- return utostr((unsigned)X);
+ return utostr(static_cast<unsigned>(X));
}
static inline std::string ftostr(double V) {
char Buffer[200];
- snprintf(Buffer, 200, "%e", V);
+ 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