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annotate src/os_macosx.m @ 2454:91fec91a522c vim73

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Fix: uninitialized memory access. (Dominique Pelle)
author Bram Moolenaar <bram@vim.org>
date Sun, 01 Aug 2010 15:11:43 +0200
parents 2e6dbc2fccd4
children 4b7929dad28a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * os_macosx.m -- Mac specific things for Mac OS/X.
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12 */
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13
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14 #ifndef MACOS_X_UNIX
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15 Error: MACOS 9 is no longer supported in Vim 7
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16 #endif
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17
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18 #include "vim.h"
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19 #import <Cocoa/Cocoa.h>
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20
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21
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22 #ifdef FEAT_CLIPBOARD
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23
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24 /* Used to identify clipboard data copied from Vim. */
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25
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26 NSString *VimPboardType = @"VimPboardType";
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27
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28 void
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29 clip_mch_lose_selection(VimClipboard *cbd)
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30 {
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31 }
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32
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33
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34 int
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35 clip_mch_own_selection(VimClipboard *cbd)
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36 {
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37 /* This is called whenever there is a new selection and 'guioptions'
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38 * contains the "a" flag (automatically copy selection). Return TRUE, else
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39 * the "a" flag does nothing. Note that there is no concept of "ownership"
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40 * of the clipboard in Mac OS X.
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41 */
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42 return TRUE;
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43 }
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44
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45
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46 void
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47 clip_mch_request_selection(VimClipboard *cbd)
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48 {
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49 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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50
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51 NSPasteboard *pb = [NSPasteboard generalPasteboard];
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52 NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
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53 NSStringPboardType, nil];
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54 NSString *bestType = [pb availableTypeFromArray:supportedTypes];
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55 if (!bestType) goto releasepool;
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56
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57 int motion_type = MCHAR;
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58 NSString *string = nil;
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59
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60 if ([bestType isEqual:VimPboardType])
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61 {
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62 /* This type should consist of an array with two objects:
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63 * 1. motion type (NSNumber)
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64 * 2. text (NSString)
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65 * If this is not the case we fall back on using NSStringPboardType.
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66 */
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67 id plist = [pb propertyListForType:VimPboardType];
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68 if ([plist isKindOfClass:[NSArray class]] && [plist count] == 2)
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69 {
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70 id obj = [plist objectAtIndex:1];
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71 if ([obj isKindOfClass:[NSString class]])
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72 {
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73 motion_type = [[plist objectAtIndex:0] intValue];
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74 string = obj;
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75 }
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76 }
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77 }
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78
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79 if (!string)
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80 {
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81 /* Use NSStringPboardType. The motion type is set to line-wise if the
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82 * string contains at least one EOL character, otherwise it is set to
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83 * character-wise (block-wise is never used).
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84 */
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85 NSMutableString *mstring =
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86 [[pb stringForType:NSStringPboardType] mutableCopy];
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87 if (!mstring) goto releasepool;
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88
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89 /* Replace unrecognized end-of-line sequences with \x0a (line feed). */
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90 NSRange range = { 0, [mstring length] };
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91 unsigned n = [mstring replaceOccurrencesOfString:@"\x0d\x0a"
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92 withString:@"\x0a" options:0
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93 range:range];
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94 if (0 == n)
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95 {
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96 n = [mstring replaceOccurrencesOfString:@"\x0d" withString:@"\x0a"
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97 options:0 range:range];
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98 }
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99
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100 /* Scan for newline character to decide whether the string should be
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101 * pasted line-wise or character-wise.
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102 */
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103 motion_type = MCHAR;
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104 if (0 < n || NSNotFound != [mstring rangeOfString:@"\n"].location)
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105 motion_type = MLINE;
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106
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107 string = mstring;
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108 }
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109
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110 if (!(MCHAR == motion_type || MLINE == motion_type || MBLOCK == motion_type
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111 || MAUTO == motion_type))
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112 motion_type = MCHAR;
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113
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114 char_u *str = (char_u*)[string UTF8String];
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115 int len = [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding];
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116
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117 #ifdef FEAT_MBYTE
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118 if (input_conv.vc_type != CONV_NONE)
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119 str = string_convert(&input_conv, str, &len);
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120 #endif
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121
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122 if (str)
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123 clip_yank_selection(motion_type, str, len, cbd);
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124
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125 #ifdef FEAT_MBYTE
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126 if (input_conv.vc_type != CONV_NONE)
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127 vim_free(str);
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128 #endif
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129
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130 releasepool:
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131 [pool release];
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132 }
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133
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134
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135 /*
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136 * Send the current selection to the clipboard.
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137 */
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138 void
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139 clip_mch_set_selection(VimClipboard *cbd)
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140 {
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141 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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142
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143 /* If the '*' register isn't already filled in, fill it in now. */
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144 cbd->owned = TRUE;
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145 clip_get_selection(cbd);
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146 cbd->owned = FALSE;
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147
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148 /* Get the text to put on the pasteboard. */
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149 long_u llen = 0; char_u *str = 0;
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150 int motion_type = clip_convert_selection(&str, &llen, cbd);
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151 if (motion_type < 0)
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152 goto releasepool;
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153
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154 /* TODO: Avoid overflow. */
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155 int len = (int)llen;
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156 #ifdef FEAT_MBYTE
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157 if (output_conv.vc_type != CONV_NONE)
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158 {
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159 char_u *conv_str = string_convert(&output_conv, str, &len);
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160 if (conv_str)
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161 {
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162 vim_free(str);
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163 str = conv_str;
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164 }
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165 }
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166 #endif
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167
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168 if (len > 0)
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169 {
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170 NSString *string = [[NSString alloc]
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171 initWithBytes:str length:len encoding:NSUTF8StringEncoding];
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172
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173 /* See clip_mch_request_selection() for info on pasteboard types. */
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174 NSPasteboard *pb = [NSPasteboard generalPasteboard];
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175 NSArray *supportedTypes = [NSArray arrayWithObjects:VimPboardType,
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176 NSStringPboardType, nil];
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177 [pb declareTypes:supportedTypes owner:nil];
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178
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179 NSNumber *motion = [NSNumber numberWithInt:motion_type];
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180 NSArray *plist = [NSArray arrayWithObjects:motion, string, nil];
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181 [pb setPropertyList:plist forType:VimPboardType];
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182
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183 [pb setString:string forType:NSStringPboardType];
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184
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185 [string release];
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186 }
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187
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188 vim_free(str);
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189 releasepool:
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190 [pool release];
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191 }
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192
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193 #endif /* FEAT_CLIPBOARD */