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//========================================================================
//
// GooString.h
//
// Simple variable-length string type.
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2006 Krzysztof Kowalczyk <kkowalczyk@gmail.com>
// Copyright (C) 2008-2010, 2012, 2014, 2017-2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2012-2014 Fabio D'Urso <fabiodurso@hotmail.it>
// Copyright (C) 2013 Jason Crain <jason@aquaticape.us>
// Copyright (C) 2015, 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2016 Jakub Alba <jakubalba@gmail.com>
// Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich
// Copyright (C) 2019 Christophe Fergeau <cfergeau@redhat.com>
// Copyright (C) 2019 Tomoyuki Kubota <himajin100000@gmail.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef GooString_H
#define GooString_H
#include <cstdarg>
#include <string>
#ifdef __clang__
# define GOOSTRING_FORMAT __attribute__((__annotate__("gooformat")))
#else
# define GOOSTRING_FORMAT
#endif
class GooString : private std::string {
public:
// Create an empty string.
GooString() = default;
// Destructor.
~GooString() = default;
GooString(GooString &&other) = default;
GooString& operator=(GooString &&other) = default;
GooString(const GooString &other) = delete;
GooString& operator=(const GooString &other) = delete;
// Create a string from a C string.
explicit GooString(const char *sA) : std::string(sA ? sA : "") {}
// Zero-cost conversion from and to std::string
explicit GooString(const std::string& str) : std::string(str) {}
explicit GooString(std::string&& str) : std::string(std::move(str)) {}
const std::string& toStr() const { return *this; }
// Create a string from <lengthA> chars at <sA>. This string
// can contain null characters.
GooString(const char *sA, int lengthA) : std::string(sA ? sA : "", sA ? lengthA : 0) {}
// Create a string from <lengthA> chars at <idx> in <str>.
GooString(const GooString *str, int idx, int lengthA) : std::string(*str, idx, lengthA) {}
// Set content of a string to <newStr>.
GooString* Set(const GooString *newStr) { assign(newStr ? static_cast<const std::string&>(*newStr) : std::string{}); return this; }
GooString* Set(const char *newStr) { assign(newStr ? newStr : ""); return this; }
GooString* Set(const char *newStr, int newLen) { assign(newStr ? newStr : "", newStr ? newLen : 0); return this; }
// Copy a string.
explicit GooString(const GooString *str) : std::string(str ? static_cast<const std::string&>(*str) : std::string{}) {}
GooString *copy() const { return new GooString(this); }
// Concatenate two strings.
GooString(const GooString *str1, const GooString *str2) {
reserve(str1->size() + str2->size());
static_cast<std::string&>(*this).append(*str1);
static_cast<std::string&>(*this).append(*str2);
}
// Convert an integer to a string.
static GooString *fromInt(int x);
// Create a formatted string. Similar to printf, but without the
// string overflow issues. Formatting elements consist of:
// {<arg>:[<width>][.<precision>]<type>}
// where:
// - <arg> is the argument number (arg 0 is the first argument
// following the format string) -- NB: args must be first used in
// order; they can be reused in any order
// - <width> is the field width -- negative to reverse the alignment;
// starting with a leading zero to zero-fill (for integers)
// - <precision> is the number of digits to the right of the decimal
// point (for floating point numbers)
// - <type> is one of:
// d, x, X, o, b -- int in decimal, lowercase hex, uppercase hex, octal, binary
// ud, ux, uX, uo, ub -- unsigned int
// ld, lx, lX, lo, lb, uld, ulx, ulX, ulo, ulb -- long, unsigned long
// lld, llx, llX, llo, llb, ulld, ullx, ullX, ullo, ullb
// -- long long, unsigned long long
// f, g, gs -- floating point (float or double)
// f -- always prints trailing zeros (eg 1.0 with .2f will print 1.00)
// g -- omits trailing zeros and, if possible, the dot (eg 1.0 shows up as 1)
// gs -- is like g, but treats <precision> as number of significant
// digits to show (eg 0.0123 with .2gs will print 0.012)
// c -- character (char, short or int)
// s -- string (char *)
// t -- GooString *
// w -- blank space; arg determines width
// To get literal curly braces, use {{ or }}.
static GooString *format(const char *fmt, ...) GOOSTRING_FORMAT;
static GooString *formatv(const char *fmt, va_list argList);
// Get length.
int getLength() const { return size(); }
// Get C string.
using std::string::c_str;
// Get <i>th character.
char getChar(int i) const { return (*this)[i]; }
// Change <i>th character.
void setChar(int i, char c) { (*this)[i] = c; }
// Clear string to zero length.
GooString *clear() { static_cast<std::string&>(*this).clear(); return this; }
// Append a character or string.
GooString *append(char c) { push_back(c); return this; }
GooString *append(const GooString *str) { static_cast<std::string&>(*this).append(*str); return this; }
GooString *append(const char *str) { static_cast<std::string&>(*this).append(str); return this; }
GooString *append(const char *str, int lengthA) { static_cast<std::string&>(*this).append(str, lengthA); return this; }
// Append a formatted string.
GooString *appendf(const char *fmt, ...) GOOSTRING_FORMAT;
GooString *appendfv(const char *fmt, va_list argList);
// Insert a character or string.
GooString *insert(int i, char c) { static_cast<std::string&>(*this).insert(i, 1, c); return this; }
GooString *insert(int i, const GooString *str) { static_cast<std::string&>(*this).insert(i, *str); return this; }
GooString *insert(int i, const char *str) { static_cast<std::string&>(*this).insert(i, str); return this; }
GooString *insert(int i, const char *str, int lengthA) { static_cast<std::string&>(*this).insert(i, str, lengthA); return this; }
// Delete a character or range of characters.
GooString *del(int i, int n = 1) { erase(i, n); return this; }
// Convert string to all-upper/all-lower case.
GooString *upperCase();
GooString *lowerCase();
// Compare two strings: -1:< 0:= +1:>
int cmp(const GooString *str) const { return compare(*str); }
int cmp(const std::string &str) const { return compare(str); }
int cmpN(GooString *str, int n) const { return compare(0, n, *str); }
int cmp(const char *sA) const { return compare(sA); }
int cmpN(const char *sA, int n) const { return compare(0, n, sA); }
// Return true if strings starts with prefix
bool startsWith(const char *prefix) const;
// Return true if string ends with suffix
bool endsWith(const char *suffix) const;
bool hasUnicodeMarker() const { return size() >= 2 && (*this)[0] == '\xfe' && (*this)[1] == '\xff'; }
bool hasUnicodeMarkerLE() const { return size() >= 2 && (*this)[0] == '\xff' && (*this)[1] == '\xfe'; }
bool hasJustUnicodeMarker() const { return size() == 2 && hasUnicodeMarker(); }
void prependUnicodeMarker();
// Sanitizes the string so that it does
// not contain any ( ) < > [ ] { } / %
// The postscript mode also has some more strict checks
// The caller owns the return value
GooString *sanitizedName(bool psmode) const;
};
#endif
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