#ifndef LLVM_ADT_STRINGEXTRAS_H
#define LLVM_ADT_STRINGEXTRAS_H
-#include "llvm/System/DataTypes.h"
-#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/StringRef.h"
-#include <cctype>
-#include <cstdio>
-#include <string>
-#include <vector>
+#include "llvm/Support/DataTypes.h"
namespace llvm {
template<typename T> class SmallVectorImpl;
-/// hexdigit - Return the (uppercase) hexadecimal character for the
-/// given number \arg X (which should be less than 16).
-static inline char hexdigit(unsigned X) {
- return X < 10 ? '0' + X : 'A' + X - 10;
+/// hexdigit - Return the hexadecimal character for the
+/// given number \p X (which should be less than 16).
+static inline char hexdigit(unsigned X, bool LowerCase = false) {
+ const char HexChar = LowerCase ? 'a' : 'A';
+ return X < 10 ? '0' + X : HexChar + X - 10;
}
/// utohex_buffer - Emit the specified number into the buffer specified by
return utostr(static_cast<uint64_t>(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 ftostr(const APFloat& V) {
- if (&V.getSemantics() == &APFloat::IEEEdouble)
- return ftostr(V.convertToDouble());
- else if (&V.getSemantics() == &APFloat::IEEEsingle)
- return ftostr((double)V.convertToFloat());
- return "<unknown format in ftostr>"; // error
-}
-
-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;
-}
-
-static inline std::string UppercaseString(const std::string &S) {
- std::string result(S);
- for (unsigned i = 0; i < S.length(); ++i)
- if (islower(result[i]))
- result[i] = char(toupper(result[i]));
- return result;
-}
-
/// StrInStrNoCase - Portable version of strcasestr. Locates the first
/// occurrence of string 's1' in string 's2', ignoring case. Returns
/// the offset of s2 in s1 or npos if s2 cannot be found.
SmallVectorImpl<StringRef> &OutFragments,
StringRef Delimiters = " \t\n\v\f\r");
-/// HashString - Hash funtion for strings.
+/// HashString - Hash function for strings.
///
/// This is the Bernstein hash function.
//
// X*33+c -> X*33^c
static inline unsigned HashString(StringRef Str, unsigned Result = 0) {
for (unsigned i = 0, e = Str.size(); i != e; ++i)
- Result = Result * 33 + Str[i];
+ Result = Result * 33 + (unsigned char)Str[i];
return Result;
}
+/// Returns the English suffix for an ordinal integer (-st, -nd, -rd, -th).
+static inline StringRef getOrdinalSuffix(unsigned Val) {
+ // It is critically important that we do this perfectly for
+ // user-written sequences with over 100 elements.
+ switch (Val % 100) {
+ case 11:
+ case 12:
+ case 13:
+ return "th";
+ default:
+ switch (Val % 10) {
+ case 1: return "st";
+ case 2: return "nd";
+ case 3: return "rd";
+ default: return "th";
+ }
+ }
+}
+
} // End llvm namespace
#endif