Add m-esr52 at 52.6.0

1 files changed, 186 insertions, 0 deletions

diff --git a/xpcom/ds/nsCRT.h b/xpcom/ds/nsCRT.h
new file mode 100644
index 000000000..6fad83d6d
--- /dev/null
+++ b/xpcom/ds/nsCRT.h
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef nsCRT_h___
+#define nsCRT_h___
+
+#include <stdlib.h>
+#include <ctype.h>
+#include "plstr.h"
+#include "nscore.h"
+#include "nsCRTGlue.h"
+
+#if defined(XP_WIN)
+#  define NS_LINEBREAK           "\015\012"
+#  define NS_LINEBREAK_LEN       2
+#else
+#  ifdef XP_UNIX
+#    define NS_LINEBREAK         "\012"
+#    define NS_LINEBREAK_LEN     1
+#  endif /* XP_UNIX */
+#endif /* XP_WIN */
+
+extern const char16_t kIsoLatin1ToUCS2[256];
+
+// This macro can be used in a class declaration for classes that want
+// to ensure that their instance memory is zeroed.
+#define NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW   \
+  void* operator new(size_t sz) CPP_THROW_NEW { \
+    void* rv = ::operator new(sz);              \
+    if (rv) {                                   \
+      memset(rv, 0, sz);                        \
+    }                                           \
+    return rv;                                  \
+  }                                             \
+  void operator delete(void* ptr) {             \
+    ::operator delete(ptr);                     \
+  }
+
+// This macro works with the next macro to declare a non-inlined
+// version of the above.
+#define NS_DECL_ZEROING_OPERATOR_NEW           \
+  void* operator new(size_t sz) CPP_THROW_NEW; \
+  void operator delete(void* ptr);
+
+#define NS_IMPL_ZEROING_OPERATOR_NEW(_class)            \
+  void* _class::operator new(size_t sz) CPP_THROW_NEW { \
+    void* rv = ::operator new(sz);                      \
+    if (rv) {                                           \
+      memset(rv, 0, sz);                                \
+    }                                                   \
+    return rv;                                          \
+  }                                                     \
+  void _class::operator delete(void* ptr) {             \
+    ::operator delete(ptr);                             \
+  }
+
+// Freeing helper
+#define CRTFREEIF(x) if (x) { nsCRT::free(x); x = 0; }
+
+/// This is a wrapper class around all the C runtime functions.
+
+class nsCRT
+{
+public:
+  enum
+  {
+    LF = '\n'   /* Line Feed */,
+    VTAB = '\v' /* Vertical Tab */,
+    CR = '\r'   /* Carriage Return */
+  };
+
+  /// String comparison.
+  static int32_t strcmp(const char* aStr1, const char* aStr2)
+  {
+    return int32_t(PL_strcmp(aStr1, aStr2));
+  }
+
+  static int32_t strncmp(const char* aStr1, const char* aStr2,
+                         uint32_t aMaxLen)
+  {
+    return int32_t(PL_strncmp(aStr1, aStr2, aMaxLen));
+  }
+
+  /// Case-insensitive string comparison.
+  static int32_t strcasecmp(const char* aStr1, const char* aStr2)
+  {
+    return int32_t(PL_strcasecmp(aStr1, aStr2));
+  }
+
+  /// Case-insensitive string comparison with length
+  static int32_t strncasecmp(const char* aStr1, const char* aStr2,
+                             uint32_t aMaxLen)
+  {
+    int32_t result = int32_t(PL_strncasecmp(aStr1, aStr2, aMaxLen));
+    //Egads. PL_strncasecmp is returning *very* negative numbers.
+    //Some folks expect -1,0,1, so let's temper its enthusiasm.
+    if (result < 0) {
+      result = -1;
+    }
+    return result;
+  }
+
+  static int32_t strncmp(const char* aStr1, const char* aStr2, int32_t aMaxLen)
+  {
+    // inline the first test (assumes strings are not null):
+    int32_t diff =
+      ((const unsigned char*)aStr1)[0] - ((const unsigned char*)aStr2)[0];
+    if (diff != 0) {
+      return diff;
+    }
+    return int32_t(PL_strncmp(aStr1, aStr2, unsigned(aMaxLen)));
+  }
+
+  /**
+
+    How to use this fancy (thread-safe) version of strtok:
+
+    void main(void) {
+      printf("%s\n\nTokens:\n", string);
+      // Establish string and get the first token:
+      char* newStr;
+      token = nsCRT::strtok(string, seps, &newStr);
+      while (token != nullptr) {
+        // While there are tokens in "string"
+        printf(" %s\n", token);
+        // Get next token:
+        token = nsCRT::strtok(newStr, seps, &newStr);
+      }
+    }
+    * WARNING - STRTOK WHACKS str THE FIRST TIME IT IS CALLED *
+    * MAKE A COPY OF str IF YOU NEED TO USE IT AFTER strtok() *
+  */
+  static char* strtok(char* aStr, const char* aDelims, char** aNewStr);
+
+  /// Like strcmp except for ucs2 strings
+  static int32_t strcmp(const char16_t* aStr1, const char16_t* aStr2);
+  /// Like strcmp except for ucs2 strings
+  static int32_t strncmp(const char16_t* aStr1, const char16_t* aStr2,
+                         uint32_t aMaxLen);
+
+  // The GNU libc has memmem, which is strstr except for binary data
+  // This is our own implementation that uses memmem on platforms
+  // where it's available.
+  static const char* memmem(const char* aHaystack, uint32_t aHaystackLen,
+                            const char* aNeedle, uint32_t aNeedleLen);
+
+  // String to longlong
+  static int64_t atoll(const char* aStr);
+
+  static char ToUpper(char aChar) { return NS_ToUpper(aChar); }
+  static char ToLower(char aChar) { return NS_ToLower(aChar); }
+
+  static bool IsUpper(char aChar) { return NS_IsUpper(aChar); }
+  static bool IsLower(char aChar) { return NS_IsLower(aChar); }
+
+  static bool IsAscii(char16_t aChar) { return NS_IsAscii(aChar); }
+  static bool IsAscii(const char16_t* aString) { return NS_IsAscii(aString); }
+  static bool IsAsciiAlpha(char16_t aChar) { return NS_IsAsciiAlpha(aChar); }
+  static bool IsAsciiDigit(char16_t aChar) { return NS_IsAsciiDigit(aChar); }
+  static bool IsAsciiSpace(char16_t aChar) { return NS_IsAsciiWhitespace(aChar); }
+  static bool IsAscii(const char* aString) { return NS_IsAscii(aString); }
+  static bool IsAscii(const char* aString, uint32_t aLength)
+  {
+    return NS_IsAscii(aString, aLength);
+  }
+};
+
+
+inline bool
+NS_IS_SPACE(char16_t aChar)
+{
+  return ((int(aChar) & 0x7f) == int(aChar)) && isspace(int(aChar));
+}
+
+#define NS_IS_CNTRL(i)   ((((unsigned int) (i)) > 0x7f) ? (int) 0 : iscntrl(i))
+#define NS_IS_DIGIT(i)   ((((unsigned int) (i)) > 0x7f) ? (int) 0 : isdigit(i))
+#if defined(XP_WIN)
+#define NS_IS_ALPHA(VAL) (isascii((int)(VAL)) && isalpha((int)(VAL)))
+#else
+#define NS_IS_ALPHA(VAL) ((((unsigned int) (VAL)) > 0x7f) ? (int) 0 : isalpha((int)(VAL)))
+#endif
+
+
+#endif /* nsCRT_h___ */