aboutsummaryrefslogtreecommitdiff
path: root/common/str.h
blob: 5110fdf6d696586dc502d3a2de7206bf3ae36aae (plain)
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
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2002-2006 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 */

#ifndef COMMON_STRING_H
#define COMMON_STRING_H

#include "common/scummsys.h"
#include "common/array.h"

#include <assert.h>
#include <string.h>

namespace Common {

class String {
protected:
	char		*_str;
	int 		_len;
	mutable int *_refCount;
	int 		_capacity;

public:
#if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
	static const String emptyString;
#else
	static const char *emptyString;
#endif

	String() : _str(0), _len(0), _refCount(0), _capacity(0) {}
	String(const char *str, int len = -1, int capacity = 16);
	String(const String &str);
	virtual ~String();

	String &operator  =(const char *str);
	String &operator  =(const String &str);
	String &operator  =(char c);
	String &operator +=(const char *str);
	String &operator +=(const String &str);
	String &operator +=(char c);

	bool operator ==(const String &x) const;
	bool operator ==(const char *x) const;
	bool operator !=(const String &x) const;
	bool operator !=(const char *x) const;

	bool operator <(const String &x) const;
	bool operator <=(const String &x) const;
	bool operator >(const String &x) const;
	bool operator >=(const String &x) const;

	bool equals(const String &x) const;
	bool equalsIgnoreCase(const String &x) const;
	int compareTo(const String &x) const;	// strcmp clone
	int compareToIgnoreCase(const String &x) const;	// stricmp clone

	bool equals(const char *x) const;
	bool equalsIgnoreCase(const char *x) const;
	int compareTo(const char *x) const;	// strcmp clone
	int compareToIgnoreCase(const char *x) const;	// stricmp clone



	bool hasSuffix(const char *x) const;
	bool hasPrefix(const char *x) const;

	const char *c_str() const		{ return _str ? _str : ""; }
	uint size() const				{ return _len; }

	bool empty() const	{ return (_len == 0); }
	char lastChar() const	{ return (_len > 0) ? _str[_len-1] : 0; }

	char operator [](int idx) const {
		assert(_str && idx >= 0 && idx < _len);
		return _str[idx];
	}

	char &operator [](int idx) {
		assert(_str && idx >= 0 && idx < _len);
		return _str[idx];
	}

	void deleteLastChar();
	void deleteChar(int p);
	void clear();
	void insertChar(char c, int p);

	void toLowercase();
	void toUppercase();

	uint hash() const;

public:
	typedef char *        iterator;
	typedef const char *  const_iterator;

	iterator		begin() {
		return _str;
	}

	iterator		end() {
		return begin() + size();
	}

	const_iterator	begin() const {
		return _str;
	}

	const_iterator	end() const {
		return begin() + size();
	}

protected:
	void ensureCapacity(int new_len, bool keep_old);
	void incRefCount() const;
	void decRefCount();
};

// Append two strings to form a new (temp) string
String operator +(const String &x, const String &y);
String operator +(const char *x, const String &y);
String operator +(const String &x, const char *y);

// Some useful additional comparision operators for Strings
bool operator == (const char *x, const String &y);
bool operator != (const char *x, const String &y);

class StringList : public Array<String> {
public:
	void push_back(const char *str) {
		ensureCapacity(_size + 1);
		_data[_size++] = str;
	}

	void push_back(const String &str) {
		ensureCapacity(_size + 1);
		_data[_size++] = str;
	}
};

}	// End of namespace Common

#endif