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
209
210
|
//========================================================================
//
// 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 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2012 Fabio D'Urso <fabiodurso@hotmail.it>
//
// 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 <limits.h> // for LLONG_MAX and ULLONG_MAX
/* <limits.h> and/or the compiler may or may not define these. */
/* Minimum and maximum values a `signed long long int' can hold. */
#ifndef LLONG_MAX
# define LLONG_MAX 9223372036854775807LL
#endif
#ifndef LLONG_MIN
# define LLONG_MIN (-LLONG_MAX - 1LL)
#endif
/* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */
#ifndef ULLONG_MAX
# define ULLONG_MAX 18446744073709551615ULL
#endif
#include <stdarg.h>
#include <stdlib.h> // for NULL
#include "gtypes.h"
class GooString {
public:
// 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(GooString *str, int idx, int lengthA);
// Set content of a string to concatination of <s1> and <s2>. They can both
// be NULL. if <s1Len> or <s2Len> is CALC_STRING_LEN, then length of the string
// will be calculated with strlen(). Otherwise we assume they are a valid
// length of string (or its substring)
GooString* Set(const char *s1, int s1Len=CALC_STRING_LEN, const char *s2=NULL, int s2Len=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 -- double
// c -- char
// s -- string (char *)
// t -- GooString *
// w -- blank space; arg determines width
// To get literal curly braces, use {{ or }}.
static GooString *format(const char *fmt, ...);
static GooString *formatv(const char *fmt, va_list argList);
// Destructor.
~GooString();
// Get length.
int getLength() { return length; }
// Get C string.
char *getCString() const { return s; }
// Get <i>th character.
char getChar(int i) { 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(GooString *str);
GooString *append(const char *str, int lengthA=CALC_STRING_LEN);
// Append a formatted string.
GooString *appendf(const char *fmt, ...);
GooString *appendfv(const char *fmt, va_list argList);
// Insert a character or string.
GooString *insert(int i, char c);
GooString *insert(int i, 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(GooString *str) const;
int cmpN(GooString *str, int n) const;
int cmp(const char *sA) const;
int cmpN(const char *sA, int n) const;
GBool hasUnicodeMarker(void);
// 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);
private:
GooString(const GooString &other);
GooString& operator=(const GooString &other);
// you can tweak this number for a different speed/memory usage tradeoffs.
// In libc malloc() rounding is 16 so it's best to choose a value that
// results in sizeof(GooString) be a multiple of 16.
// 24 makes sizeof(GooString) to be 32.
static const int STR_STATIC_SIZE = 24;
// 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;
int roundedSize(int len);
char sStatic[STR_STATIC_SIZE];
int length;
char *s;
void resize(int newLength);
#ifdef LLONG_MAX
static void formatInt(long long x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
#else
static void formatInt(long x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
#endif
#ifdef ULLONG_MAX
static void formatUInt(unsigned long long x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
#else
static void formatUInt(Gulong x, char *buf, int bufSize,
GBool zeroFill, int width, int base,
char **p, int *len, GBool upperCase = gFalse);
#endif
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
|
