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annotate base/src/java/lang/StringBuffer.d @ 43:b98647bc0aef

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swt win compiles for d2+phobos
author Frank Benoit <benoit@tionex.de>
date Wed, 25 Mar 2009 17:08:05 +0100
parents 1bf55a6eb092
children fcf926c91ca4
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1 module java.lang.StringBuffer;
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2
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3 import java.lang.util;
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4
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5 version(Tango){
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6 static import tango.text.Text;
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7 static import tango.text.convert.Utf;
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8 } else { // Phobos
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9 static import std.uni;
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10 static import std.utf;
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11 }
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12
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13 class StringBuffer : CharSequence {
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14 version(Tango){
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15 alias tango.text.Text.Text!(char) TBuf;
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16 TBuf buf;
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17 } else { // Phobos
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18 const int STDINCR = 128;
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19 char[] buf;
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20 int used;
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21 }
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22
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23 public this(){
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24 version(Tango){
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25 buf = new TBuf();
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26 } else { // Phobos
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27 }
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28 }
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29
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30 public this( int cap ){
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31 version(Tango){
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32 buf = new TBuf(cap);
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33 } else { // Phobos
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34 buf.length = cap;
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35 }
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36 }
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38 public this( CString content ){
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39 version(Tango){
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40 buf = new TBuf( content );
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41 } else { // Phobos
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42 buf.length = content.length + STDINCR;
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43 buf[ 0 .. content.length ] = content;
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44 used = content.length;
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45 }
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46 }
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47
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48 char charAt(int index){
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49 version(Tango){
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50 return buf.slice()[ index ];
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51 } else { // Phobos
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52 return buf[ index ];
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53 }
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54 }
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55
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56 int length(){
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57 version(Tango){
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58 return buf.length();
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59 } else { // Phobos
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60 return used;
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61 }
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62 }
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63
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64 CharSequence subSequence(int start, int end){
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65 version(Tango){
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66 return new StringBuffer( buf.slice()[ start .. end ] );
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67 } else { // Phobos
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68 return new StringBuffer( cast(String)buf[ start .. end ] );
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69 }
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70 }
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71
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72 String toString(){
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73 version(Tango){
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74 return buf.slice();
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75 } else { // Phobos
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76 return cast(String)buf[ 0 .. used ];
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77 }
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78 }
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80 StringBuffer append( CString s ){
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81 version(Tango){
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82 buf.append( s );
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83 } else { // Phobos
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84 if( buf.length < used + s.length ){
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85 buf.length = used + s.length + STDINCR;
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86 }
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87 buf[ used .. used + s.length ] = s;
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88 used += s.length;
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89 }
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90 return this;
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91 }
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92
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93 StringBuffer append( CString s, int offset, int len ){
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94 return append( s[ offset .. offset+len ] );
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95 }
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96
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97 StringBuffer append( StringBuffer other ){
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98 return append( other.slice() );
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99 }
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100
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101 StringBuffer append( Object obj ){
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102 return append( obj.toString() );
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103 }
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104
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105 StringBuffer append( char c ){
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106 char[1] src;
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107 src[0] = c;
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108 return append( cast(String)src );
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109 }
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110
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111 StringBuffer append( wchar c ){
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112 wchar[1] src;
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113 src[0] = c;
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114 version(Tango){
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115 char[2] trg;
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116 auto arr = tango.text.convert.Utf.toString( src, trg );
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117 } else { // Phobos
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118 auto arr = std.utf.toUTF8( src );
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119 }
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120 return append( arr );
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121 }
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122
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123 StringBuffer append( int i ){
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124 return append( String_valueOf(i) );
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125 }
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126
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127 StringBuffer append( long i ){
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128 return append( String_valueOf(i) );
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129 }
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130
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131 StringBuffer append( dchar c ){
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132 dchar[1] src;
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133 src[0] = c;
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134 version(Tango){
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135 char[4] trg;
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136 auto arr = tango.text.convert.Utf.toString( src, trg );
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137 } else { // Phobos
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138 auto arr = std.utf.toUTF8( src );
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139 }
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140 return append( arr );
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141 }
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142
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143
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144 StringBuffer insert(int offset, int i){
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145 return insert( offset, String_valueOf(i) );
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146 }
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147 StringBuffer insert(int offset, CString str){
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148 return replace( offset, offset, str );
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149 }
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150
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151 StringBuffer insert(int offset, StringBuffer other){
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152 return insert( offset, other.slice());
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153 }
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154
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155 StringBuffer replace(int start, int end, CString str) {
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156 version(Tango){
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157 buf.select(start, end-start);
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158 buf.replace(str);
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159 buf.select();
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160 } else { // Phobos
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161 int incr = end - start - str.length;
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162 if( incr > 0 ){
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163 if( buf.length < used + incr ){
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164 char[] newbuf = new char[ 2*(used + incr) + STDINCR ];
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165 newbuf[ 0 .. start ] = buf[ 0 .. start ];
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166 newbuf[ start .. start + str.length ] = str;
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167 newbuf[ start + str.length .. used + str.length ] = buf[ end .. used ];
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168 buf = newbuf;
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169 }
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170 else{
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171 char* s = buf.ptr + start;
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172 char* t = buf.ptr + start + str.length;
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173 char* e = buf.ptr + start + str.length;
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174 while( s !is e ){
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175 *t = *s;
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176 s++; t++;
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177 }
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178 buf[ start .. start + str.length ] = str;
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179 }
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180 }
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181 else if( incr == 0 ){
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182 buf[ start .. end ] = str;
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183 }
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184 else{
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185 buf[ start .. end ] = str;
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186 char* s = buf.ptr + end;
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187 char* t = buf.ptr + start + str.length;
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188 char* e = buf.ptr + start + str.length;
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189 while( s !is e ){
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190 *t = *s;
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191 s--; t--;
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192 }
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193 }
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194 used += incr;
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195 }
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196 return this;
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197 }
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diff changeset
198
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199 void setLength( int newLength ){
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200 version(Tango){
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201 buf.truncate( newLength );
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202 } else { // Phobos
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203 if( buf.length < newLength ){
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204 buf.length = 2*newLength + STDINCR;
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205 }
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206 used = newLength;
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207 }
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208 }
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209
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210 String substring( int start, int end ){
21
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211 version(Tango){
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212 return buf.slice()[ start .. end ].dup;
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213 } else { // Phobos
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214 return buf[ start .. end ].idup;
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215 }
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diff changeset
216 }
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diff changeset
217
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diff changeset
218 void delete_( int start, int end ){
21
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diff changeset
219 replace( start, end, "" );
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220 }
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diff changeset
221 String slice(){
21
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diff changeset
222 version(Tango){
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diff changeset
223 return buf.slice();
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diff changeset
224 } else { // Phobos
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diff changeset
225 return cast(String)buf[ 0 .. used ];
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226 }
16
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diff changeset
227 }
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diff changeset
228 void truncate( int start ){
21
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diff changeset
229 setLength( start );
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diff changeset
230 }
3
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231 }
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232
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diff changeset
233