411 lines
12 KiB
C++
411 lines
12 KiB
C++
/*
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* Copyright 2001-2007, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef __BSTRING__
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#define __BSTRING__
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#include <BeBuild.h>
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#include <SupportDefs.h>
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#include <string.h>
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class BString {
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public:
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BString();
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BString(const char* string);
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BString(const BString& string);
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BString(const char* string, int32 maxLength);
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~BString();
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// Access
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const char* String() const;
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int32 Length() const;
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// length of corresponding string
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int32 CountChars() const;
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// returns number of UTF8 characters in string
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// Assignment
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BString& operator=(const BString& string);
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BString& operator=(const char* string);
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BString& operator=(char c);
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BString& SetTo(const char* string);
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BString& SetTo(const char* string, int32 maxLength);
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BString& SetTo(const BString& string);
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BString& Adopt(BString& from);
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BString& SetTo(const BString& string, int32 maxLength);
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BString& Adopt(BString& from, int32 maxLength);
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BString& SetTo(char c, int32 count);
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// Substring copying
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BString& CopyInto(BString& into, int32 fromOffset,
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int32 length) const;
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void CopyInto(char* into, int32 fromOffset,
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int32 length) const;
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// Appending
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BString& operator+=(const BString& string);
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BString& operator+=(const char* string);
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BString& operator+=(char c);
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BString& Append(const BString& string);
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BString& Append(const char* string);
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BString& Append(const BString& string, int32 length);
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BString& Append(const char* string, int32 length);
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BString& Append(char c, int32 count);
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// Prepending
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BString& Prepend(const char* string);
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BString& Prepend(const BString& string);
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BString& Prepend(const char* string, int32 length);
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BString& Prepend(const BString& string, int32 length);
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BString& Prepend(char c, int32 count);
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// Inserting
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BString& Insert(const char* string, int32 pos);
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BString& Insert(const char* string, int32 length, int32 pos);
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BString& Insert(const char* string, int32 fromOffset,
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int32 length, int32 pos);
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BString& Insert(const BString& string, int32 pos);
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BString& Insert(const BString& string, int32 length, int32 pos);
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BString& Insert(const BString& string, int32 fromOffset,
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int32 length, int32 pos);
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BString& Insert(char, int32 count, int32 pos);
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// Removing
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BString& Truncate(int32 newLength, bool lazy = true);
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BString& Remove(int32 from, int32 length);
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BString& RemoveFirst(const BString& string);
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BString& RemoveLast(const BString& string);
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BString& RemoveAll(const BString& string);
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BString& RemoveFirst(const char* string);
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BString& RemoveLast(const char* string);
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BString& RemoveAll(const char* string);
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BString& RemoveSet(const char* setOfCharsToRemove);
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BString& MoveInto(BString& into, int32 from, int32 length);
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void MoveInto(char* into, int32 from, int32 length);
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// Compare functions
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bool operator<(const BString& string) const;
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bool operator<=(const BString& string) const;
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bool operator==(const BString& string) const;
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bool operator>=(const BString& string) const;
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bool operator>(const BString& string) const;
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bool operator!=(const BString& string) const;
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bool operator<(const char* string) const;
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bool operator<=(const char* string) const;
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bool operator==(const char* string) const;
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bool operator>=(const char* string) const;
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bool operator>(const char* string) const;
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bool operator!=(const char* string) const;
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// strcmp()-style compare functions
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int Compare(const BString& string) const;
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int Compare(const char* string) const;
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int Compare(const BString& string, int32 length) const;
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int Compare(const char* string, int32 length) const;
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int ICompare(const BString& string) const;
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int ICompare(const char* string) const;
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int ICompare(const BString& string, int32 length) const;
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int ICompare(const char* string, int32 length) const;
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// Searching
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int32 FindFirst(const BString& string) const;
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int32 FindFirst(const char* string) const;
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int32 FindFirst(const BString& string, int32 fromOffset) const;
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int32 FindFirst(const char* string, int32 fromOffset) const;
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int32 FindFirst(char c) const;
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int32 FindFirst(char c, int32 fromOffset) const;
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int32 FindLast(const BString& string) const;
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int32 FindLast(const char* string) const;
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int32 FindLast(const BString& string, int32 beforeOffset) const;
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int32 FindLast(const char* string, int32 beforeOffset) const;
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int32 FindLast(char c) const;
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int32 FindLast(char c, int32 beforeOffset) const;
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int32 IFindFirst(const BString& string) const;
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int32 IFindFirst(const char* string) const;
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int32 IFindFirst(const BString& string, int32 fromOffset) const;
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int32 IFindFirst(const char* string, int32 fromOffset) const;
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int32 IFindLast(const BString& string) const;
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int32 IFindLast(const char* string) const;
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int32 IFindLast(const BString& string, int32 beforeOffset) const;
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int32 IFindLast(const char* string, int32 beforeOffset) const;
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// Replacing
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BString& ReplaceFirst(char replaceThis, char withThis);
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BString& ReplaceLast(char replaceThis, char withThis);
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BString& ReplaceAll(char replaceThis, char withThis,
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int32 fromOffset = 0);
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BString& Replace(char replaceThis, char withThis,
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int32 maxReplaceCount, int32 fromOffset = 0);
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BString& ReplaceFirst(const char* replaceThis,
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const char* withThis);
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BString& ReplaceLast(const char* replaceThis,
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const char* withThis);
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BString& ReplaceAll(const char* replaceThis,
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const char* withThis, int32 fromOffset = 0);
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BString& Replace(const char* replaceThis, const char* withThis,
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int32 maxReplaceCount, int32 fromOffset = 0);
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BString& IReplaceFirst(char replaceThis, char withThis);
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BString& IReplaceLast(char replaceThis, char withThis);
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BString& IReplaceAll(char replaceThis, char withThis,
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int32 fromOffset = 0);
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BString& IReplace(char replaceThis, char withThis,
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int32 maxReplaceCount, int32 fromOffset = 0);
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BString& IReplaceFirst(const char* replaceThis,
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const char* withThis);
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BString& IReplaceLast(const char* replaceThis,
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const char* withThis);
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BString& IReplaceAll(const char* replaceThis,
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const char* withThis, int32 fromOffset = 0);
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BString& IReplace(const char* replaceThis, const char* withThis,
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int32 maxReplaceCount, int32 fromOffset = 0);
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BString& ReplaceSet(const char* setOfChars, char with);
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BString& ReplaceSet(const char* setOfChars, const char *with);
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// Unchecked char access
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char operator[](int32 index) const;
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char& operator[](int32 index);
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// Checked char access
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char ByteAt(int32 index) const;
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// Fast low-level manipulation
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char* LockBuffer(int32 maxLength);
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BString& UnlockBuffer(int32 length = -1);
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// Upercase <-> Lowercase
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BString& ToLower();
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BString& ToUpper();
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BString& Capitalize();
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BString& CapitalizeEachWord();
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// Escaping and De-escaping
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BString& CharacterEscape(const char* original,
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const char* setOfCharsToEscape, char escapeWith);
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BString& CharacterEscape(const char* setOfCharsToEscape,
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char escapeWith);
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BString& CharacterDeescape(const char* original, char escapeChar);
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BString& CharacterDeescape(char escapeChar);
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// Slower than sprintf() but type and overflow safe
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BString& operator<<(const char* string);
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BString& operator<<(const BString& string);
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BString& operator<<(char c);
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BString& operator<<(int value);
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BString& operator<<(unsigned int value);
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BString& operator<<(uint32 value);
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BString& operator<<(int32 value);
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BString& operator<<(uint64 value);
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BString& operator<<(int64 value);
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BString& operator<<(float value);
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// float output hardcodes %.2f style formatting
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private:
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void _Init(const char *, int32);
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void _DoAssign(const char *, int32);
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void _DoAppend(const char *, int32);
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char* _GrowBy(int32);
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char* _OpenAtBy(int32, int32);
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char* _ShrinkAtBy(int32, int32);
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void _DoPrepend(const char *, int32);
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int32 _FindAfter(const char *, int32, int32) const;
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int32 _IFindAfter(const char *, int32, int32) const;
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int32 _ShortFindAfter(const char *, int32) const;
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int32 _FindBefore(const char *, int32, int32) const;
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int32 _IFindBefore(const char *, int32, int32) const;
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BString& _DoReplace(const char *, const char *, int32, int32,
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bool);
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void _SetLength(int32);
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#if DEBUG
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void _SetUsingAsCString(bool);
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void _AssertNotUsingAsCString() const;
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#else
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void _SetUsingAsCString(bool) {}
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void _AssertNotUsingAsCString() const {}
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#endif
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char* _Alloc(int32 size);
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class PosVect;
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void _ReplaceAtPositions(const PosVect* positions,
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int32 searchLength, const char* with, int32 withLen);
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protected:
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char* fPrivateData;
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};
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// Commutative compare operators
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bool operator<(const char* a, const BString& b);
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bool operator<=(const char* a, const BString& b);
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bool operator==(const char* a, const BString& b);
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bool operator>(const char* a, const BString& b);
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bool operator>=(const char* a, const BString& b);
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bool operator!=(const char* a, const BString& b);
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// Non-member compare for sorting, etc.
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int Compare(const BString& a, const BString& b);
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int ICompare(const BString& a, const BString& b);
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int Compare(const BString* a, const BString* b);
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int ICompare(const BString* a, const BString* b);
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inline int32
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BString::Length() const
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{
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return fPrivateData ? (*((int32 *)fPrivateData - 1) & 0x7fffffff) : 0;
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/* the most significant bit is reserved; accessing
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* it in any way will cause the computer to explode
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*/
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}
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inline const char *
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BString::String() const
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{
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if (!fPrivateData)
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return "";
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return fPrivateData;
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}
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inline BString &
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BString::SetTo(const char *string)
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{
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return operator=(string);
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}
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inline char
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BString::operator[](int32 index) const
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{
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return fPrivateData[index];
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}
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inline char
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BString::ByteAt(int32 index) const
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{
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if (!fPrivateData || index < 0 || index > Length())
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return 0;
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return fPrivateData[index];
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}
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inline BString &
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BString::operator+=(const BString &string)
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{
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_DoAppend(string.String(), string.Length());
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return *this;
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}
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inline BString &
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BString::Append(const BString &string)
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{
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_DoAppend(string.String(), string.Length());
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return *this;
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}
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inline BString &
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BString::Append(const char *str)
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{
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return operator+=(str);
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}
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inline bool
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BString::operator==(const BString &string) const
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{
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return strcmp(String(), string.String()) == 0;
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}
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inline bool
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BString::operator<(const BString &string) const
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{
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return strcmp(String(), string.String()) < 0;
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}
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inline bool
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BString::operator<=(const BString &string) const
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{
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return strcmp(String(), string.String()) <= 0;
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}
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inline bool
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BString::operator>=(const BString &string) const
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{
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return strcmp(String(), string.String()) >= 0;
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}
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inline bool
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BString::operator>(const BString &string) const
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{
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return strcmp(String(), string.String()) > 0;
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}
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inline bool
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BString::operator!=(const BString &string) const
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{
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return strcmp(String(), string.String()) != 0;
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}
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inline bool
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BString::operator!=(const char *str) const
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{
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return !operator==(str);
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}
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inline bool
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operator<(const char *str, const BString &string)
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{
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return string > str;
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}
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inline bool
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operator<=(const char *str, const BString &string)
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{
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return string >= str;
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}
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inline bool
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operator==(const char *str, const BString &string)
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{
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return string == str;
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}
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inline bool
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operator>(const char *str, const BString &string)
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{
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return string < str;
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}
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inline bool
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operator>=(const char *str, const BString &string)
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{
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return string <= str;
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}
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inline bool
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operator!=(const char *str, const BString &string)
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{
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return string != str;
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}
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#endif /* __BSTRING__ */
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