2019-09-23 18:56:05 +00:00
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#pragma once
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/*
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** zstring.h
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**
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**---------------------------------------------------------------------------
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** Copyright 2005-2007 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <stddef.h>
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#include <string>
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#include "tarray.h"
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2023-08-19 14:57:37 +00:00
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#include "utf8.h"
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2023-08-23 18:36:19 +00:00
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#include "filesystem.h"
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2019-09-23 18:56:05 +00:00
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#ifdef __GNUC__
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#define PRINTFISH(x) __attribute__((format(printf, 2, x)))
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#else
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#define PRINTFISH(x)
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#endif
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#ifdef __GNUC__
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#define IGNORE_FORMAT_PRE \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wformat\"") \
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_Pragma("GCC diagnostic ignored \"-Wformat-extra-args\"")
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#define IGNORE_FORMAT_POST _Pragma("GCC diagnostic pop")
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#else
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#define IGNORE_FORMAT_PRE
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#define IGNORE_FORMAT_POST
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#endif
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struct FStringData
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{
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unsigned int Len; // Length of string, excluding terminating null
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unsigned int AllocLen; // Amount of memory allocated for string
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int RefCount; // < 0 means it's locked
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// char StrData[xxx];
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char *Chars()
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{
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return (char *)(this + 1);
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}
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const char *Chars() const
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{
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return (const char *)(this + 1);
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}
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char *AddRef()
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{
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if (RefCount < 0)
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{
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return (char *)(MakeCopy() + 1);
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}
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else
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{
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RefCount++;
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return (char *)(this + 1);
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}
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}
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void Release()
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{
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assert (RefCount != 0);
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if (--RefCount <= 0)
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{
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Dealloc();
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}
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}
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FStringData *MakeCopy();
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static FStringData *Alloc (size_t strlen);
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FStringData *Realloc (size_t newstrlen);
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void Dealloc ();
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};
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struct FNullStringData
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{
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unsigned int Len;
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unsigned int AllocLen;
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int RefCount;
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char Nothing[2];
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};
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enum ELumpNum
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{
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};
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class FString
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{
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public:
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FString () { ResetToNull(); }
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// Copy constructors
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FString (const FString &other) { AttachToOther (other); }
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FString (FString &&other) : Chars(other.Chars) { other.ResetToNull(); }
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FString (const char *copyStr);
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FString (const char *copyStr, size_t copyLen);
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FString (char oneChar);
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FString(const TArray<char> & source) : FString(source.Data(), source.Size()) {}
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FString(const TArray<uint8_t> & source) : FString((char*)source.Data(), source.Size()) {}
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// This is intentionally #ifdef'd. The only code which needs this is parts of the Windows backend that receive Unicode text from the system.
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#ifdef _WIN32
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explicit FString(const wchar_t *copyStr);
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FString &operator = (const wchar_t *copyStr);
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std::wstring WideString() const { return ::WideString(Chars); }
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#endif
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// Concatenation constructors
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FString (const FString &head, const FString &tail);
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FString (const FString &head, const char *tail);
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FString (const FString &head, char tail);
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FString (const char *head, const FString &tail);
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FString (const char *head, const char *tail);
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FString (char head, const FString &tail);
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~FString ();
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// Discard string's contents, create a new buffer, and lock it.
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char *LockNewBuffer(size_t len);
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char *LockBuffer(); // Obtain write access to the character buffer
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void UnlockBuffer(); // Allow shared access to the character buffer
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void Swap(FString &other)
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{
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std::swap(Chars, other.Chars);
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}
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2020-09-13 08:29:57 +00:00
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// We do not want any implicit conversions from FString in conditionals.
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explicit operator bool() = delete; // this is needed to render the operator const char * ineffective when used in boolean constructs.
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bool operator !() = delete;
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2019-09-23 18:56:05 +00:00
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operator const char *() const { return Chars; }
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const char *GetChars() const { return Chars; }
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const char &operator[] (int index) const { return Chars[index]; }
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#if defined(_WIN32) && !defined(_WIN64) && defined(_MSC_VER)
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// Compiling 32-bit Windows source with MSVC: size_t is typedefed to an
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// unsigned int with the 64-bit portability warning attribute, so the
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// prototype cannot substitute unsigned int for size_t, or you get
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// spurious warnings.
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const char &operator[] (size_t index) const { return Chars[index]; }
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#else
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const char &operator[] (unsigned int index) const { return Chars[index]; }
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#endif
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const char &operator[] (unsigned long index) const { return Chars[index]; }
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const char &operator[] (unsigned long long index) const { return Chars[index]; }
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FString &operator = (const FString &other);
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FString &operator = (FString &&other);
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FString &operator = (const char *copyStr);
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FString operator + (const FString &tail) const;
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FString operator + (const char *tail) const;
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FString operator + (char tail) const;
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friend FString operator + (const char *head, const FString &tail);
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friend FString operator + (char head, const FString &tail);
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FString &operator += (const FString &tail);
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FString &operator += (const char *tail);
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FString &operator += (char tail);
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FString &AppendCStrPart (const char *tail, size_t tailLen);
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FString &CopyCStrPart(const char *tail, size_t tailLen);
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FString &operator << (const FString &tail) { return *this += tail; }
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FString &operator << (const char *tail) { return *this += tail; }
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FString &operator << (char tail) { return *this += tail; }
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const char &Front() const { assert(IsNotEmpty()); return Chars[0]; }
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const char &Back() const { assert(IsNotEmpty()); return Chars[Len() - 1]; }
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FString Left (size_t numChars) const;
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FString Right (size_t numChars) const;
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FString Mid (size_t pos, size_t numChars = ~(size_t)0) const;
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void AppendCharacter(int codepoint);
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void DeleteLastCharacter();
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2021-08-14 08:04:45 +00:00
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ptrdiff_t IndexOf (const FString &substr, ptrdiff_t startIndex=0) const;
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ptrdiff_t IndexOf (const char *substr, ptrdiff_t startIndex=0) const;
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ptrdiff_t IndexOf (char subchar, ptrdiff_t startIndex=0) const;
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2019-09-23 18:56:05 +00:00
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2021-08-14 08:04:45 +00:00
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ptrdiff_t IndexOfAny (const FString &charset, ptrdiff_t startIndex=0) const;
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ptrdiff_t IndexOfAny (const char *charset, ptrdiff_t startIndex=0) const;
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2019-09-23 18:56:05 +00:00
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// This is only kept for backwards compatibility with old ZScript versions that used this function and depend on its bug.
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2021-08-14 08:04:45 +00:00
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ptrdiff_t LastIndexOf (char subchar) const;
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ptrdiff_t LastIndexOfBroken (const FString &substr, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOf (char subchar, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOfAny (const FString &charset) const;
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ptrdiff_t LastIndexOfAny (const char *charset) const;
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ptrdiff_t LastIndexOfAny (const FString &charset, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOfAny (const char *charset, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOf (const FString &substr) const;
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ptrdiff_t LastIndexOf (const FString &substr, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOf (const char *substr) const;
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ptrdiff_t LastIndexOf (const char *substr, ptrdiff_t endIndex) const;
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ptrdiff_t LastIndexOf (const char *substr, ptrdiff_t endIndex, size_t substrlen) const;
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2019-09-23 18:56:05 +00:00
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void ToUpper ();
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void ToLower ();
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FString MakeUpper() const;
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FString MakeLower() const;
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void StripLeft ();
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void StripLeft (const FString &charset);
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void StripLeft (const char *charset);
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void StripRight ();
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void StripRight (const FString &charset);
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void StripRight (const char *charset);
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void StripLeftRight ();
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void StripLeftRight (const FString &charset);
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void StripLeftRight (const char *charset);
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void Insert (size_t index, const FString &instr);
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void Insert (size_t index, const char *instr);
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void Insert (size_t index, const char *instr, size_t instrlen);
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template<typename Func>
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void ReplaceChars (Func IsOldChar, char newchar)
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{
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size_t i, j;
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LockBuffer();
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for (i = 0, j = Len(); i < j; ++i)
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{
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if (IsOldChar(Chars[i]))
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{
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Chars[i] = newchar;
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}
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}
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UnlockBuffer();
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}
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void ReplaceChars (char oldchar, char newchar);
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void ReplaceChars (const char *oldcharset, char newchar);
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template<typename Func>
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void StripChars (Func IsKillChar)
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{
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size_t read, write, mylen;
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LockBuffer();
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for (read = write = 0, mylen = Len(); read < mylen; ++read)
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{
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if (!IsKillChar(Chars[read]))
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{
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Chars[write++] = Chars[read];
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}
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}
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Chars[write] = '\0';
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ReallocBuffer (write);
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UnlockBuffer();
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}
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void StripChars (char killchar);
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void StripChars (const char *killcharset);
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void MergeChars (char merger);
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void MergeChars (char merger, char newchar);
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void MergeChars (const char *charset, char newchar);
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void Substitute (const FString &oldstr, const FString &newstr);
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void Substitute (const char *oldstr, const FString &newstr);
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void Substitute (const FString &oldstr, const char *newstr);
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void Substitute (const char *oldstr, const char *newstr);
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void Substitute (const char *oldstr, const char *newstr, size_t oldstrlen, size_t newstrlen);
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void Format (const char *fmt, ...) PRINTFISH(3);
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void AppendFormat (const char *fmt, ...) PRINTFISH(3);
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void VFormat (const char *fmt, va_list arglist) PRINTFISH(0);
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void VAppendFormat (const char *fmt, va_list arglist) PRINTFISH(0);
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bool IsInt () const;
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bool IsFloat () const;
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int64_t ToLong (int base=0) const;
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uint64_t ToULong (int base=0) const;
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double ToDouble () const;
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size_t Len() const { return Data()->Len; }
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size_t CharacterCount() const;
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int GetNextCharacter(int &position) const;
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bool IsEmpty() const { return Len() == 0; }
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bool IsNotEmpty() const { return Len() != 0; }
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void Truncate (size_t newlen);
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void Remove(size_t index, size_t remlen);
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int Compare (const FString &other) const { return strcmp (Chars, other.Chars); }
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int Compare (const char *other) const { return strcmp (Chars, other); }
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int Compare(const FString &other, int len) const { return strncmp(Chars, other.Chars, len); }
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int Compare(const char *other, int len) const { return strncmp(Chars, other, len); }
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int CompareNoCase (const FString &other) const { return stricmp (Chars, other.Chars); }
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int CompareNoCase (const char *other) const { return stricmp (Chars, other); }
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int CompareNoCase(const FString &other, int len) const { return strnicmp(Chars, other.Chars, len); }
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int CompareNoCase(const char *other, int len) const { return strnicmp(Chars, other, len); }
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enum EmptyTokenType
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{
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TOK_SKIPEMPTY = 0,
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TOK_KEEPEMPTY = 1,
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};
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TArray<FString> Split(const FString &delimiter, EmptyTokenType keepEmpty = TOK_KEEPEMPTY) const;
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TArray<FString> Split(const char *delimiter, EmptyTokenType keepEmpty = TOK_KEEPEMPTY) const;
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void Split(TArray<FString>& tokens, const FString &delimiter, EmptyTokenType keepEmpty = TOK_KEEPEMPTY) const;
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void Split(TArray<FString>& tokens, const char *delimiter, EmptyTokenType keepEmpty = TOK_KEEPEMPTY) const;
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protected:
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const FStringData *Data() const { return (FStringData *)Chars - 1; }
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FStringData *Data() { return (FStringData *)Chars - 1; }
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void ResetToNull()
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{
|
|
|
|
NullString.RefCount++;
|
|
|
|
Chars = &NullString.Nothing[0];
|
|
|
|
}
|
|
|
|
|
|
|
|
void AttachToOther (const FString &other);
|
|
|
|
void AllocBuffer (size_t len);
|
|
|
|
void ReallocBuffer (size_t newlen);
|
|
|
|
|
2023-08-09 10:17:17 +00:00
|
|
|
static char* FormatHelper (const char *str, void* data, int len);
|
2019-09-23 18:56:05 +00:00
|
|
|
static void StrCopy (char *to, const char *from, size_t len);
|
|
|
|
static void StrCopy (char *to, const FString &from);
|
|
|
|
|
|
|
|
char *Chars;
|
|
|
|
|
|
|
|
static FNullStringData NullString;
|
|
|
|
|
|
|
|
friend struct FStringData;
|
|
|
|
|
|
|
|
public:
|
|
|
|
bool operator == (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) == 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator != (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator < (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) < 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator > (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) > 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator <= (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) <= 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool operator >= (const FString &other) const
|
|
|
|
{
|
|
|
|
return Compare(other) >= 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
// These are needed to block the default char * conversion operator from making a mess.
|
|
|
|
bool operator == (const char *) const = delete;
|
|
|
|
bool operator != (const char *) const = delete;
|
|
|
|
bool operator < (const char *) const = delete;
|
|
|
|
bool operator > (const char *) const = delete;
|
|
|
|
bool operator <= (const char *) const = delete;
|
|
|
|
bool operator >= (const char *) const = delete;
|
|
|
|
|
|
|
|
private:
|
|
|
|
};
|
|
|
|
|
|
|
|
// These are also needed to block the default char * conversion operator from making a mess.
|
|
|
|
bool operator == (const char *, const FString &) = delete;
|
|
|
|
bool operator != (const char *, const FString &) = delete;
|
|
|
|
bool operator < (const char *, const FString &) = delete;
|
|
|
|
bool operator > (const char *, const FString &) = delete;
|
|
|
|
bool operator <= (const char *, const FString &) = delete;
|
|
|
|
bool operator >= (const char *, const FString &) = delete;
|
|
|
|
|
|
|
|
class FStringf : public FString
|
|
|
|
{
|
|
|
|
public:
|
|
|
|
FStringf(const char *fmt, ...);
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2023-08-09 10:17:17 +00:00
|
|
|
/*
|
2019-09-23 18:56:05 +00:00
|
|
|
namespace StringFormat
|
|
|
|
{
|
|
|
|
enum
|
|
|
|
{
|
|
|
|
// Format specification flags
|
|
|
|
F_MINUS = 1,
|
|
|
|
F_PLUS = 2,
|
|
|
|
F_ZERO = 4,
|
|
|
|
F_BLANK = 8,
|
|
|
|
F_HASH = 16,
|
|
|
|
|
|
|
|
F_SIGNED = 32,
|
|
|
|
F_NEGATIVE = 64,
|
|
|
|
F_ZEROVALUE = 128,
|
|
|
|
F_FPT = 256,
|
|
|
|
|
|
|
|
// Format specification size prefixes
|
|
|
|
F_HALFHALF = 0x1000, // hh
|
|
|
|
F_HALF = 0x2000, // h
|
|
|
|
F_LONG = 0x3000, // l
|
|
|
|
F_LONGLONG = 0x4000, // ll or I64
|
|
|
|
F_BIGI = 0x5000, // I
|
|
|
|
F_PTRDIFF = 0x6000, // t
|
|
|
|
F_SIZE = 0x7000, // z
|
|
|
|
};
|
|
|
|
typedef int (*OutputFunc)(void *data, const char *str, int len);
|
|
|
|
|
|
|
|
int VWorker (OutputFunc output, void *outputData, const char *fmt, va_list arglist);
|
|
|
|
int Worker (OutputFunc output, void *outputData, const char *fmt, ...);
|
|
|
|
};
|
2023-08-09 10:17:17 +00:00
|
|
|
*/
|
2019-09-23 18:56:05 +00:00
|
|
|
|
|
|
|
#undef PRINTFISH
|
|
|
|
|
|
|
|
// Hash FStrings on their contents. (used by TMap)
|
|
|
|
#include "superfasthash.h"
|
|
|
|
|
|
|
|
template<> struct THashTraits<FString>
|
|
|
|
{
|
|
|
|
hash_t Hash(const FString &key) { return (hash_t)SuperFastHash(key.GetChars(), key.Len()); }
|
|
|
|
// Compares two keys, returning zero if they are the same.
|
|
|
|
int Compare(const FString &left, const FString &right) { return left.Compare(right); }
|
|
|
|
};
|
2019-12-24 17:53:29 +00:00
|
|
|
|
|
|
|
struct StringNoCaseHashTraits
|
|
|
|
{
|
|
|
|
hash_t Hash(const FString& key) { return (hash_t)SuperFastHashI(key.GetChars(), key.Len()); }
|
|
|
|
// Compares two keys, returning zero if they are the same.
|
|
|
|
int Compare(const FString& left, const FString& right) { return left.CompareNoCase(right); }
|
|
|
|
};
|
2020-02-02 12:30:26 +00:00
|
|
|
|