The Tor Browser: gfx/skia/trunk/include/core/SkString.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkString.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkString.h

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkString_DEFINED
 #define SkString_DEFINED
 #include "SkScalar.h"
 #include "SkTArray.h"
 #include <stdarg.h>
 /*  Some helper functions for C strings
 */
 static bool SkStrStartsWith(const char string[], const char prefixStr[]) {
     SkASSERT(string);
     SkASSERT(prefixStr);
     return !strncmp(string, prefixStr, strlen(prefixStr));
 }
 static bool SkStrStartsWith(const char string[], const char prefixChar) {
     SkASSERT(string);
     return (prefixChar == *string);
 }
 bool SkStrEndsWith(const char string[], const char suffixStr[]);
 bool SkStrEndsWith(const char string[], const char suffixChar);
 int SkStrStartsWithOneOf(const char string[], const char prefixes[]);
 static int SkStrFind(const char string[], const char substring[]) {
     const char *first = strstr(string, substring);
     if (NULL == first) return -1;
     return SkToS32(first - &string[0]);
 }
 static bool SkStrContains(const char string[], const char substring[]) {
     SkASSERT(string);
     SkASSERT(substring);
     return (-1 != SkStrFind(string, substring));
 }
 static bool SkStrContains(const char string[], const char subchar) {
     SkASSERT(string);
     char tmp[2];
     tmp[0] = subchar;
     tmp[1] = '\0';
     return (-1 != SkStrFind(string, tmp));
 }
 static inline char *SkStrDup(const char string[]) {
     char *ret = (char *) sk_malloc_throw(strlen(string)+1);
     memcpy(ret,string,strlen(string)+1);
     return ret;
 }
 #define SkStrAppendU32_MaxSize  10
 char*   SkStrAppendU32(char buffer[], uint32_t);
 #define SkStrAppendU64_MaxSize  20
 char*   SkStrAppendU64(char buffer[], uint64_t, int minDigits);
 #define SkStrAppendS32_MaxSize  (SkStrAppendU32_MaxSize + 1)
 char*   SkStrAppendS32(char buffer[], int32_t);
 #define SkStrAppendS64_MaxSize  (SkStrAppendU64_MaxSize + 1)
 char*   SkStrAppendS64(char buffer[], int64_t, int minDigits);
 /**
  *  Floats have at most 8 significant digits, so we limit our %g to that.
  *  However, the total string could be 15 characters: -1.2345678e-005
  *
  *  In theory we should only expect up to 2 digits for the exponent, but on
  *  some platforms we have seen 3 (as in the example above).
  */
 #define SkStrAppendScalar_MaxSize  15
 /**
  *  Write the scaler in decimal format into buffer, and return a pointer to
  *  the next char after the last one written. Note: a terminating 0 is not
  *  written into buffer, which must be at least SkStrAppendScalar_MaxSize.
  *  Thus if the caller wants to add a 0 at the end, buffer must be at least
  *  SkStrAppendScalar_MaxSize + 1 bytes large.
  */
 #define SkStrAppendScalar SkStrAppendFloat
 char* SkStrAppendFloat(char buffer[], float);
 char* SkStrAppendFixed(char buffer[], SkFixed);
 /** \class SkString
     Light weight class for managing strings. Uses reference
     counting to make string assignments and copies very fast
     with no extra RAM cost. Assumes UTF8 encoding.
 */
 class SK_API SkString {
 public:
                 SkString();
     explicit    SkString(size_t len);
     explicit    SkString(const char text[]);
                 SkString(const char text[], size_t len);
                 SkString(const SkString&);
                 ~SkString();
     bool        isEmpty() const { return 0 == fRec->fLength; }
     size_t      size() const { return (size_t) fRec->fLength; }
     const char* c_str() const { return fRec->data(); }
     char operator[](size_t n) const { return this->c_str()[n]; }
     bool equals(const SkString&) const;
     bool equals(const char text[]) const;
     bool equals(const char text[], size_t len) const;
     bool startsWith(const char prefixStr[]) const {
         return SkStrStartsWith(fRec->data(), prefixStr);
     }
     bool startsWith(const char prefixChar) const {
         return SkStrStartsWith(fRec->data(), prefixChar);
     }
     bool endsWith(const char suffixStr[]) const {
         return SkStrEndsWith(fRec->data(), suffixStr);
     }
     bool endsWith(const char suffixChar) const {
         return SkStrEndsWith(fRec->data(), suffixChar);
     }
     bool contains(const char substring[]) const {
         return SkStrContains(fRec->data(), substring);
     }
     bool contains(const char subchar) const {
         return SkStrContains(fRec->data(), subchar);
     }
     int find(const char substring[]) const {
         return SkStrFind(fRec->data(), substring);
     }
     friend bool operator==(const SkString& a, const SkString& b) {
         return a.equals(b);
     }
     friend bool operator!=(const SkString& a, const SkString& b) {
         return !a.equals(b);
     }
     // these methods edit the string
     SkString& operator=(const SkString&);
     SkString& operator=(const char text[]);
     char* writable_str();
     char& operator[](size_t n) { return this->writable_str()[n]; }
     void reset();
     void resize(size_t len) { this->set(NULL, len); }
     void set(const SkString& src) { *this = src; }
     void set(const char text[]);
     void set(const char text[], size_t len);
     void setUTF16(const uint16_t[]);
     void setUTF16(const uint16_t[], size_t len);
     void insert(size_t offset, const SkString& src) { this->insert(offset, src.c_str(), src.size()); }
     void insert(size_t offset, const char text[]);
     void insert(size_t offset, const char text[], size_t len);
     void insertUnichar(size_t offset, SkUnichar);
     void insertS32(size_t offset, int32_t value);
     void insertS64(size_t offset, int64_t value, int minDigits = 0);
     void insertU32(size_t offset, uint32_t value);
     void insertU64(size_t offset, uint64_t value, int minDigits = 0);
     void insertHex(size_t offset, uint32_t value, int minDigits = 0);
     void insertScalar(size_t offset, SkScalar);
     void append(const SkString& str) { this->insert((size_t)-1, str); }
     void append(const char text[]) { this->insert((size_t)-1, text); }
     void append(const char text[], size_t len) { this->insert((size_t)-1, text, len); }
     void appendUnichar(SkUnichar uni) { this->insertUnichar((size_t)-1, uni); }
     void appendS32(int32_t value) { this->insertS32((size_t)-1, value); }
     void appendS64(int64_t value, int minDigits = 0) { this->insertS64((size_t)-1, value, minDigits); }
     void appendU32(uint32_t value) { this->insertU32((size_t)-1, value); }
     void appendU64(uint64_t value, int minDigits = 0) { this->insertU64((size_t)-1, value, minDigits); }
     void appendHex(uint32_t value, int minDigits = 0) { this->insertHex((size_t)-1, value, minDigits); }
     void appendScalar(SkScalar value) { this->insertScalar((size_t)-1, value); }
     void prepend(const SkString& str) { this->insert(0, str); }
     void prepend(const char text[]) { this->insert(0, text); }
     void prepend(const char text[], size_t len) { this->insert(0, text, len); }
     void prependUnichar(SkUnichar uni) { this->insertUnichar(0, uni); }
     void prependS32(int32_t value) { this->insertS32(0, value); }
     void prependS64(int32_t value, int minDigits = 0) { this->insertS64(0, value, minDigits); }
     void prependHex(uint32_t value, int minDigits = 0) { this->insertHex(0, value, minDigits); }
     void prependScalar(SkScalar value) { this->insertScalar((size_t)-1, value); }
     void printf(const char format[], ...) SK_PRINTF_LIKE(2, 3);
     void appendf(const char format[], ...) SK_PRINTF_LIKE(2, 3);
     void appendVAList(const char format[], va_list);
     void prependf(const char format[], ...) SK_PRINTF_LIKE(2, 3);
     void remove(size_t offset, size_t length);
     SkString& operator+=(const SkString& s) { this->append(s); return *this; }
     SkString& operator+=(const char text[]) { this->append(text); return *this; }
     SkString& operator+=(const char c) { this->append(&c, 1); return *this; }
     /**
      *  Swap contents between this and other. This function is guaranteed
      *  to never fail or throw.
      */
     void swap(SkString& other);
 private:
     struct Rec {
     public:
         uint32_t    fLength; // logically size_t, but we want it to stay 32bits
         int32_t     fRefCnt;
         char        fBeginningOfData;
         char* data() { return &fBeginningOfData; }
         const char* data() const { return &fBeginningOfData; }
     };
     Rec* fRec;
 #ifdef SK_DEBUG
     const char* fStr;
     void validate() const;
 #else
     void validate() const {}
 #endif
     static const Rec gEmptyRec;
     static Rec* AllocRec(const char text[], size_t len);
     static Rec* RefRec(Rec*);
 };
 /// Creates a new string and writes into it using a printf()-style format.
 SkString SkStringPrintf(const char* format, ...);
 // Specialized to take advantage of SkString's fast swap path. The unspecialized function is
 // declared in SkTypes.h and called by SkTSort.
 template <> inline void SkTSwap(SkString& a, SkString& b) {
     a.swap(b);
 }
 // Split str on any characters in delimiters into out.  (Think, strtok with a sane API.)
 void SkStrSplit(const char* str, const char* delimiters, SkTArray<SkString>* out);
 #endif

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gfx/skia/trunk/include/core/SkString.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkString.h