1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
//========================================================================
//
// 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 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
//
// 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
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include <stdarg.h>
#include <stdlib.h> // for NULL
#include <string>
#include "gtypes.h"
#ifdef __clang__
# define GOOSTRING_FORMAT __attribute__((__annotate__("gooformat")))
#else
# define GOOSTRING_FORMAT
#endif
class GooString {
public:
// a special value telling that the length of the string is not given
// so it must be calculated from the strings
static const int CALC_STRING_LEN = -1;
// Create an empty string.
GooString();
// Create a string from a C string.
explicit GooString(const char *sA);
// Create a string from <lengthA> chars at <sA>. This string
// can contain null characters.
GooString(const char *sA, int lengthA);
// Create a string from <lengthA> chars at <idx> in <str>.
GooString(const GooString *str, int idx, int lengthA);
// Set content of a string to <newStr>. If <newLen> is CALC_STRING_LEN, then
// length of the string will be calculated with strlen(). Otherwise we assume
// this is a valid length of <newStr> (or its substring)
GooString* Set(const char *newStr, int newLen=CALC_STRING_LEN);
// Copy a string.
explicit GooString(const GooString *str);
GooString *copy() const { return new GooString(this); }
// Concatenate two strings.
GooString(GooString *str1, GooString *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);
// Destructor.
~GooString();
// Get length.
int getLength() const { return length; }
// Get C string.
char *getCString() { return s; }
const char *getCString() const { return s; }
// Get <i>th character.
char getChar(int i) const { return s[i]; }
// Change <i>th character.
void setChar(int i, char c) { s[i] = c; }
// Clear string to zero length.
GooString *clear();
// Append a character or string.
GooString *append(char c);
GooString *append(const GooString *str);
GooString *append(const char *str, int lengthA=CALC_STRING_LEN);
// 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);
GooString *insert(int i, const GooString *str);
GooString *insert(int i, const char *str, int lengthA=CALC_STRING_LEN);
// Delete a character or range of characters.
GooString *del(int i, int n = 1);
// Convert string to all-upper/all-lower case.
GooString *upperCase();
GooString *lowerCase();
// Compare two strings: -1:< 0:= +1:>
int cmp(const GooString *str) const;
int cmpN(GooString *str, int n) const;
int cmp(const char *sA) const;
int cmpN(const char *sA, int n) const;
// Return true if string ends with suffix
GBool endsWith(const char *suffix) const;
GBool hasUnicodeMarker(void) const;
void prependUnicodeMarker();
GBool hasJustUnicodeMarker(void) const { return length == 2 && hasUnicodeMarker(); }
// 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(GBool psmode) const;
// Conversion from and to std::string
explicit GooString(const std::string& str) : GooString(str.data(), str.size()) {}
std::string toStr() const { return std::string(getCString(), getLength()); }
private:
GooString(const GooString &other);
GooString& operator=(const GooString &other);
// You can tweak the final object size for different time/space tradeoffs.
// In libc malloc(), rounding is 16 so it's best to choose a value that
// is a multiple of 16.
static const int STR_FINAL_SIZE = 32;
static const int STR_STATIC_SIZE = STR_FINAL_SIZE - sizeof(int) - sizeof(char*);
int roundedSize(int len);
char sStatic[STR_STATIC_SIZE];
int length;
char *s;
void resize(int newLength);
static void formatInt(long long x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
static void formatUInt(unsigned long long x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
static void formatDouble(double x, char *buf, int bufSize, int prec,
GBool trim, char **p, int *len);
static void formatDoubleSmallAware(double x, char *buf, int bufSize, int prec,
GBool trim, char **p, int *len);
};
#endif
|
