Mercurial > projects > dwt-win
annotate dwt/dwthelper/utils.d @ 194:3afcd4ddcf90
Update to SWT 3.3.2
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Wed, 19 Mar 2008 21:48:31 +0100 |
| parents | 72ef824d4983 |
| children | 184ab53b7785 |
| rev | line source |
|---|---|
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1 /** |
| 0 | 2 * Authors: Frank Benoit <keinfarbton@googlemail.com> |
| 3 */ | |
| 4 module dwt.dwthelper.utils; | |
| 5 | |
| 6 public import dwt.dwthelper.System; | |
| 15 | 7 public import Math = tango.math.Math; |
| 0 | 8 |
| 98 | 9 public import tango.core.Exception : IllegalArgumentException, IOException; |
| 97 | 10 |
| 0 | 11 import tango.io.Stdout; |
| 15 | 12 import tango.stdc.stringz; |
| 194 | 13 static import tango.text.Util; |
| 0 | 14 import tango.text.Unicode; |
| 15 | 15 import tango.text.convert.Utf; |
| 177 | 16 import tango.core.Exception; |
| 0 | 17 import tango.stdc.stdlib : exit; |
| 18 | |
| 177 | 19 import tango.util.log.Trace; |
| 20 | |
| 0 | 21 void implMissing( char[] file, uint line ){ |
| 22 Stderr.formatln( "implementation missing in file {} line {}", file, line ); | |
| 23 Stderr.formatln( "exiting ..." ); | |
| 24 exit(1); | |
| 25 } | |
| 26 | |
| 27 abstract class ArrayWrapper{ | |
| 28 } | |
| 33 | 29 abstract class ValueWrapper{ |
| 30 } | |
| 0 | 31 |
| 32 class ArrayWrapperT(T) : ArrayWrapper { | |
| 33 public T[] array; | |
| 34 public this( T[] data ){ | |
| 35 array = data; | |
| 36 } | |
| 37 } | |
| 38 | |
| 33 | 39 class ValueWrapperT(T) : ValueWrapper { |
| 40 public T value; | |
| 41 public this( T data ){ | |
| 42 value = data; | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 alias ValueWrapperT!(bool) ValueWrapperBool; | |
| 98 | 47 alias ValueWrapperT!(int) ValueWrapperInt; |
|
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48 alias ValueWrapperT!(long) ValueWrapperLong; |
| 0 | 49 alias ArrayWrapperT!(byte) ArrayWrapperByte; |
| 50 alias ArrayWrapperT!(int) ArrayWrapperInt; | |
| 51 alias ArrayWrapperT!(Object) ArrayWrapperObject; | |
| 52 alias ArrayWrapperT!(char) ArrayWrapperString; | |
| 53 alias ArrayWrapperT!(char[]) ArrayWrapperString2; | |
| 54 | |
| 177 | 55 int codepointIndexToIndex( char[] str, int cpIndex ){ |
| 56 int cps = cpIndex; | |
| 57 int res = 0; | |
| 58 while( cps > 0 ){ | |
| 59 cps--; | |
| 60 if( str[res] < 0x80 ){ | |
| 61 res+=1; | |
| 62 } | |
| 63 else if( str[res] < 0xE0 ){ | |
| 64 res+=2; | |
| 65 } | |
| 66 else if( str[res] & 0xF0 ){ | |
| 67 res+=3; | |
| 68 } | |
| 69 else{ | |
| 70 res+=4; | |
| 71 } | |
| 72 } | |
| 73 return res; | |
| 74 } | |
| 75 int indexToCodepointIndex( char[] str, int index ){ | |
| 76 int i = 0; | |
| 77 int res = 0; | |
| 78 while( i < index ){ | |
| 79 if( str[i] < 0x80 ){ | |
| 80 i+=1; | |
| 81 } | |
| 82 else if( str[i] < 0xE0 ){ | |
| 83 i+=2; | |
| 84 } | |
| 85 else if( str[i] & 0xF0 ){ | |
| 86 i+=3; | |
| 87 } | |
| 88 else{ | |
| 89 i+=4; | |
| 90 } | |
| 91 res++; | |
| 92 } | |
| 93 return res; | |
| 94 } | |
| 95 | |
| 96 char[] firstCodePointStr( char[] str, out int consumed ){ | |
| 97 dchar[1] buf; | |
| 98 uint ate; | |
| 99 dchar[] res = str.toString32( buf, &ate ); | |
| 100 consumed = ate; | |
| 101 return str[ 0 .. ate ]; | |
| 102 } | |
| 103 | |
| 104 dchar firstCodePoint( char[] str ){ | |
| 105 int dummy; | |
| 106 return firstCodePoint( str, dummy ); | |
| 107 } | |
| 108 dchar firstCodePoint( char[] str, out int consumed ){ | |
| 109 dchar[1] buf; | |
| 110 uint ate; | |
| 111 dchar[] res = str.toString32( buf, &ate ); | |
| 112 consumed = ate; | |
| 113 if( ate is 0 || res.length is 0 ){ | |
| 114 Trace.formatln( "dwthelper.utils {}: str.length={} str={:X2}", __LINE__, str.length, cast(ubyte[])str ); | |
| 0 | 115 } |
| 177 | 116 assert( ate > 0 ); |
| 117 assert( res.length is 1 ); | |
| 118 return res[0]; | |
| 0 | 119 } |
| 177 | 120 |
| 121 char[] dcharToString( dchar key ){ | |
| 122 dchar[1] buf; | |
| 123 buf[0] = key; | |
| 124 return tango.text.convert.Utf.toString( buf ); | |
| 125 } | |
| 126 | |
| 127 int codepointCount( char[] str ){ | |
| 128 scope dchar[] buf = new dchar[]( str.length ); | |
| 129 uint ate; | |
| 130 dchar[] res = tango.text.convert.Utf.toString32( str, buf, &ate ); | |
| 131 assert( ate is str.length ); | |
| 132 return res.length; | |
| 133 } | |
| 134 | |
| 135 alias tango.text.convert.Utf.toString16 toString16; | |
| 136 alias tango.text.convert.Utf.toString toString; | |
| 137 | |
| 138 int getRelativeCodePointOffset( char[] str, int startIndex, int searchRelCp ){ | |
| 139 int ignore; | |
| 140 int i = startIndex; | |
| 141 if( searchRelCp > 0 ){ | |
| 142 while( searchRelCp !is 0 ){ | |
| 143 | |
| 144 if( ( i < str.length ) | |
| 145 && ( str[i] & 0x80 ) is 0x00 ) | |
| 146 { | |
| 147 i+=1; | |
| 148 } | |
| 149 else if( ( i+1 < str.length ) | |
| 150 && (( str[i+1] & 0xC0 ) is 0x80 ) | |
| 151 && (( str[i ] & 0xE0 ) is 0xC0 )) | |
| 152 { | |
| 153 i+=2; | |
| 154 } | |
| 155 else if( ( i+2 < str.length ) | |
| 156 && (( str[i+2] & 0xC0 ) is 0x80 ) | |
| 157 && (( str[i+1] & 0xC0 ) is 0x80 ) | |
| 158 && (( str[i ] & 0xF0 ) is 0xE0 )) | |
| 159 { | |
| 160 i+=3; | |
| 161 } | |
| 162 else if(( i+3 < str.length ) | |
| 163 && (( str[i+3] & 0xC0 ) is 0x80 ) | |
| 164 && (( str[i+2] & 0xC0 ) is 0x80 ) | |
| 165 && (( str[i+1] & 0xC0 ) is 0x80 ) | |
| 166 && (( str[i ] & 0xF8 ) is 0xF0 )) | |
| 167 { | |
| 168 i+=4; | |
| 169 } | |
| 170 else{ | |
| 171 tango.text.convert.Utf.onUnicodeError( "invalid utf8 input", i ); | |
| 172 } | |
| 173 searchRelCp--; | |
| 174 } | |
| 175 } | |
| 176 else if( searchRelCp < 0 ){ | |
| 177 while( searchRelCp !is 0 ){ | |
| 178 do{ | |
| 179 i--; | |
| 180 if( i < 0 ){ | |
| 181 Trace.formatln( "dwthelper.utils getRelativeCodePointOffset {}: str={}, startIndex={}, searchRelCp={}", __LINE__, str, startIndex, searchRelCp ); | |
| 182 tango.text.convert.Utf.onUnicodeError( "invalid utf8 input", i ); | |
| 183 } | |
| 184 } while(( str[i] & 0xC0 ) is 0x80 ); | |
| 185 searchRelCp++; | |
| 186 } | |
| 187 } | |
| 188 return i - startIndex; | |
| 189 } | |
| 190 dchar getRelativeCodePoint( char[] str, int startIndex, int searchRelCp, out int relIndex ){ | |
| 191 relIndex = getRelativeCodePointOffset( str, startIndex, searchRelCp ); | |
| 192 int ignore; | |
| 193 return firstCodePoint( str[ startIndex+relIndex .. $ ], ignore ); | |
| 194 } | |
| 195 | |
| 196 int utf8AdjustOffset( char[] str, int offset ){ | |
| 197 if( str.length <= offset || offset <= 0 ){ | |
| 198 return offset; | |
| 199 } | |
| 200 while(( str[offset] & 0xC0 ) is 0x80 ){ | |
| 201 offset--; | |
| 202 } | |
| 203 return offset; | |
| 204 } | |
| 205 | |
| 206 dchar CharacterFirstToLower( char[] str ){ | |
| 207 int consumed; | |
| 208 return CharacterFirstToLower( str, consumed ); | |
| 209 } | |
| 210 dchar CharacterFirstToLower( char[] str, out int consumed ){ | |
| 211 dchar[1] buf; | |
| 212 buf[0] = firstCodePoint( str, consumed ); | |
| 213 dchar[] r = tango.text.Unicode.toLower( buf ); | |
| 214 return r[0]; | |
| 215 } | |
| 216 | |
| 0 | 217 dchar CharacterToLower( dchar c ){ |
| 218 dchar[] r = tango.text.Unicode.toLower( [c] ); | |
| 219 return r[0]; | |
| 220 } | |
| 221 dchar CharacterToUpper( dchar c ){ | |
| 222 dchar[] r = tango.text.Unicode.toUpper( [c] ); | |
| 223 return r[0]; | |
| 224 } | |
| 52 | 225 bool CharacterIsWhitespace( dchar c ){ |
| 226 return tango.text.Unicode.isWhitespace( c ); | |
| 227 } | |
| 65 | 228 bool CharacterIsDigit( dchar c ){ |
| 229 return tango.text.Unicode.isDigit( c ); | |
| 230 } | |
| 0 | 231 |
| 15 | 232 public int indexOf( char[] str, char searched ){ |
| 233 int res = tango.text.Util.locate( str, searched ); | |
| 234 if( res is str.length ) res = -1; | |
| 235 return res; | |
| 236 } | |
| 237 | |
| 238 public int indexOf( char[] str, char searched, int startpos ){ | |
| 239 int res = tango.text.Util.locate( str, searched, startpos ); | |
| 240 if( res is str.length ) res = -1; | |
| 241 return res; | |
| 242 } | |
| 243 | |
| 65 | 244 public int indexOf(char[] str, char[] ch){ |
| 245 return indexOf( str, ch, 0 ); | |
| 246 } | |
| 247 | |
| 15 | 248 public int indexOf(char[] str, char[] ch, int start){ |
| 249 int res = tango.text.Util.locatePattern( str, ch, start ); | |
| 250 if( res is str.length ) res = -1; | |
| 251 return res; | |
| 252 } | |
| 253 | |
| 177 | 254 public int lastIndexOf(char[] str, char ch){ |
| 255 return lastIndexOf( str, ch, str.length ); | |
| 256 } | |
| 257 public int lastIndexOf(char[] str, char ch, int formIndex){ | |
| 258 int res = tango.text.Util.locatePrior( str, ch, formIndex ); | |
| 259 if( res is str.length ) res = -1; | |
| 260 return res; | |
| 261 } | |
| 262 | |
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263 public char[] replace( char[] str, char from, char to ){ |
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264 return tango.text.Util.replace( str.dup, from, to ); |
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265 } |
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266 |
| 15 | 267 public char[] substring( char[] str, int start ){ |
| 268 return str[ start .. $ ].dup; | |
| 269 } | |
| 270 | |
| 271 public char[] substring( char[] str, int start, int end ){ | |
| 272 return str[ start .. end ].dup; | |
| 273 } | |
| 274 | |
| 275 public wchar[] substring( wchar[] str, int start ){ | |
| 276 return str[ start .. $ ].dup; | |
| 277 } | |
| 278 | |
| 279 public wchar[] substring( wchar[] str, int start, int end ){ | |
| 280 return str[ start .. end ].dup; | |
| 281 } | |
| 282 | |
| 283 public char charAt( char[] str, int pos ){ | |
| 284 return str[ pos ]; | |
| 285 } | |
| 286 | |
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287 public void getChars( char[] src, int srcBegin, int srcEnd, char[] dst, int dstBegin){ |
| 23 | 288 dst[ dstBegin .. dstBegin + srcEnd - srcBegin ] = src[ srcBegin .. srcEnd ]; |
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289 } |
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290 |
| 28 | 291 public wchar[] toCharArray( char[] str ){ |
| 30 | 292 return toString16( str ); |
| 28 | 293 } |
| 294 | |
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295 public bool endsWith( char[] src, char[] pattern ){ |
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296 if( src.length < pattern.length ){ |
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297 return false; |
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298 } |
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299 return src[ $-pattern.length .. $ ] == pattern; |
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300 } |
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301 |
| 177 | 302 public bool equals( char[] src, char[] other ){ |
| 303 return src == other; | |
| 304 } | |
| 305 | |
| 306 public bool equalsIgnoreCase( char[] src, char[] other ){ | |
| 307 return tango.text.Unicode.toFold(src) == tango.text.Unicode.toFold(other); | |
| 308 } | |
| 309 | |
| 98 | 310 public bool startsWith( char[] src, char[] pattern ){ |
| 311 if( src.length < pattern.length ){ | |
| 312 return false; | |
| 313 } | |
| 314 return src[ 0 .. pattern.length ] == pattern; | |
| 315 } | |
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316 public char[] toLowerCase( char[] src ){ |
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317 return tango.text.Unicode.toLower( src ); |
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318 } |
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319 |
| 177 | 320 public hash_t toHash( char[] src ){ |
| 321 return typeid(char[]).getHash(&src); | |
| 322 } | |
| 323 | |
| 190 | 324 public char[] trim( char[] str ){ |
| 325 return tango.text.Util.trim( str ).dup; | |
| 326 } | |
| 327 | |
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328 public char* toStringzValidPtr( char[] src ){ |
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329 if( src ){ |
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330 return src.toStringz(); |
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331 } |
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332 else{ |
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333 static const char[] nullPtr = "\0"; |
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334 return nullPtr.ptr; |
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335 } |
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336 } |
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337 |
| 15 | 338 static char[] toHex(uint value, bool prefix = true, int radix = 8){ |
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339 return tango.text.convert.Integer.toString( |
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340 value, |
| 15 | 341 radix is 10 ? tango.text.convert.Integer.Style.Signed : |
| 342 radix is 8 ? tango.text.convert.Integer.Style.Octal : | |
| 343 radix is 16 ? tango.text.convert.Integer.Style.Hex : | |
| 344 tango.text.convert.Integer.Style.Signed, | |
| 345 prefix ? tango.text.convert.Integer.Flags.Prefix : tango.text.convert.Integer.Flags.None | |
| 346 ); | |
| 347 } | |
| 348 | |
| 349 class NumberFormatException : IllegalArgumentException { | |
| 350 this( char[] e ){ | |
| 351 super(e); | |
| 352 } | |
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353 this( Exception e ){ |
| 15 | 354 super(e.toString); |
| 355 } | |
| 356 } | |
| 357 | |
| 79 | 358 private struct GCStats { |
| 40 | 359 size_t poolsize; // total size of pool |
| 360 size_t usedsize; // bytes allocated | |
| 361 size_t freeblocks; // number of blocks marked FREE | |
| 362 size_t freelistsize; // total of memory on free lists | |
| 363 size_t pageblocks; // number of blocks marked PAGE | |
| 364 } | |
| 79 | 365 private extern(C) GCStats gc_stats(); |
| 366 | |
| 40 | 367 size_t RuntimeTotalMemory(){ |
| 368 GCStats s = gc_stats(); | |
| 369 return s.poolsize; | |
| 370 } | |
| 15 | 371 |
| 372 | |
| 373 | |
| 374 |