File: NSStringExtensions.m

package info (click to toggle)
pantomime 1.0.2-0.1
  • links: PTS
  • area: main
  • in suites: woody
  • size: 2,036 kB
  • ctags: 325
  • sloc: objc: 11,397; ansic: 2,429; sh: 115; makefile: 70
file content (137 lines) | stat: -rw-r--r-- 2,954 bytes parent folder | download
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
/*
**  NSStringExtensions.m
**
**  Copyright (c) 2001, 2002
**
**  Author: Ludovic Marcotte <ludovic@Sophos.ca>
**          Jonathan B. Leffert <jonathan@leffert.net>
**
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Lesser General Public
**  License as published by the Free Software Foundation; either
**  version 2.1 of the License, or (at your option) any later version.
**  
**  This library 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
**  Lesser General Public License for more details.
**  
**  You should have received a copy of the GNU Lesser General Public
**  License along with this library; if not, write to the Free Software
**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

#import <Pantomime/NSStringExtensions.h>

#import <Pantomime/Constants.h>

@implementation NSString (PantomimeStringExtensions)

- (NSString *) stringByTrimmingWhiteSpaces
{
#ifdef GNUSTEP_BASE_VERSION
  return [self stringByTrimmingSpaces];
#else
  NSMutableString *mutableCopy = nil;
  NSRange theRange;

  mutableCopy = [[NSMutableString alloc] initWithString: self];

  theRange.location = 0;
  theRange.length = 1;

  while ( [mutableCopy hasPrefix: @" "] )
    {
      [mutableCopy deleteCharactersInRange: theRange];
    }

  theRange.location = [mutableCopy length] - 1;
  while ( [mutableCopy hasSuffix: @" "] )
    {
      [mutableCopy deleteCharactersInRange: theRange];      
      theRange.location = [mutableCopy length] - 1;
    }

  return AUTORELEASE(mutableCopy);
#endif
}


- (int) indexOfCharacter: (unichar) theCharacter
{
  int i;
  
  for (i = 0; i < [self length]; i++)
    {
      if ([self characterAtIndex: i] == theCharacter)
	{
	  return i;
	}
    }
  
  return -1;
}

- (BOOL) hasCaseInsensitivePrefix: (NSString *) thePrefix
{
  if ( thePrefix )
    {
      return [[self uppercaseString] hasPrefix: [thePrefix uppercaseString]];
    }
  
  return NO;
}

- (BOOL) hasCaseInsensitiveSuffix: (NSString *) theSuffix
{
  if ( theSuffix )
    {
      return [[self uppercaseString] hasSuffix: [theSuffix uppercaseString]];
    }
  
  return NO;
}

- (NSString *) stringFromQuotedString
{
  if ([self hasPrefix:@"\""] && [self hasSuffix:@"\""])
    {
      return [self substringWithRange: NSMakeRange(1, [self length] - 2)];
    }
  
  return self;
}

- (NSString *) stringByRemovingLineFeedCharacters
{
  register char *src, *dest;
  char *string;
  
  if ([self length] == 0)
    {
      return @"";
    }

  string = (char *)[self cString];
  
  /* DESTRUCTIVELY elide \n from string */
  src = dest = string;
  
  while (*src != '\0')
    {
      if (*src == '\n')
	{
	  ++src;
	}
      else
	{
	  *dest++ = *src++;
	}
    }
  
  *dest = '\0';

  return [NSString stringWithCString: string];  
}

@end