| 1 |
/* |
| 2 |
$Id: double_metaphone.c,v 1.1 2002/08/20 23:20:21 whmoseley Exp $ |
| 3 |
** |
| 4 |
** |
| 5 |
** August 20, 2002 moseley - first added to swish-e |
| 6 |
** |
| 7 |
** this is a very slightly modified version of the double_metaphone.c code |
| 8 |
** from the Perl module Text::DoubleMetaphone by Maurice Aubrey, and based |
| 9 |
** on the work of Lawrence Philips. |
| 10 |
** See http://aspell.sourceforge.net/metaphone |
| 11 |
** |
| 12 |
** From the Text::DoubleMetaphone README file: |
| 13 |
|
| 14 |
DESCRIPTION |
| 15 |
|
| 16 |
This module implements a "sounds like" algorithm developed |
| 17 |
by Lawrence Philips which he published in the June, 2000 issue |
| 18 |
of C/C++ Users Journal. Double Metaphone is an improved |
| 19 |
version of Philips' original Metaphone algorithm. |
| 20 |
|
| 21 |
COPYRIGHT |
| 22 |
|
| 23 |
Copyright 2000, Maurice Aubrey <maurice@hevanet.com>. |
| 24 |
All rights reserved. |
| 25 |
|
| 26 |
This code is based heavily on the C++ implementation by |
| 27 |
Lawrence Philips and incorporates several bug fixes courtesy |
| 28 |
of Kevin Atkinson <kevina@users.sourceforge.net>. |
| 29 |
|
| 30 |
This module is free software; you may redistribute it and/or |
| 31 |
modify it under the same terms as Perl itself. |
| 32 |
|
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|
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** |
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** |
| 36 |
*/ |
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|
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|
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|
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#include <stdio.h> |
| 41 |
#include <ctype.h> |
| 42 |
#include <stdlib.h> |
| 43 |
#include <string.h> |
| 44 |
#include <stdarg.h> |
| 45 |
#include <assert.h> |
| 46 |
#include "double_metaphone.h" |
| 47 |
#include "mem.h" |
| 48 |
|
| 49 |
|
| 50 |
#define META_MALLOC(v,n,t) (v = (t*)emalloc(((n)*sizeof(t)))) |
| 51 |
|
| 52 |
#define META_REALLOC(v,n,t) (v = (t*)erealloc((v),((n)*sizeof(t)))) |
| 53 |
|
| 54 |
#define META_FREE(x) efree((x)) |
| 55 |
|
| 56 |
|
| 57 |
metastring * |
| 58 |
NewMetaString(char *init_str) |
| 59 |
{ |
| 60 |
metastring *s; |
| 61 |
char empty_string[] = ""; |
| 62 |
|
| 63 |
META_MALLOC(s, 1, metastring); |
| 64 |
assert( s != NULL ); |
| 65 |
|
| 66 |
if (init_str == NULL) |
| 67 |
init_str = empty_string; |
| 68 |
s->length = strlen(init_str); |
| 69 |
/* preallocate a bit more for potential growth */ |
| 70 |
s->bufsize = s->length + 7; |
| 71 |
|
| 72 |
META_MALLOC(s->str, s->bufsize, char); |
| 73 |
assert( s->str != NULL ); |
| 74 |
|
| 75 |
strncpy(s->str, init_str, s->length + 1); |
| 76 |
s->free_string_on_destroy = 1; |
| 77 |
|
| 78 |
return s; |
| 79 |
} |
| 80 |
|
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|
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void |
| 83 |
DestroyMetaString(metastring * s) |
| 84 |
{ |
| 85 |
if (s == NULL) |
| 86 |
return; |
| 87 |
|
| 88 |
if (s->free_string_on_destroy && (s->str != NULL)) |
| 89 |
META_FREE(s->str); |
| 90 |
|
| 91 |
META_FREE(s); |
| 92 |
} |
| 93 |
|
| 94 |
|
| 95 |
void |
| 96 |
IncreaseBuffer(metastring * s, int chars_needed) |
| 97 |
{ |
| 98 |
META_REALLOC(s->str, (s->bufsize + chars_needed + 10), char); |
| 99 |
assert( s->str != NULL ); |
| 100 |
s->bufsize = s->bufsize + chars_needed + 10; |
| 101 |
} |
| 102 |
|
| 103 |
|
| 104 |
void |
| 105 |
MakeUpper(metastring * s) |
| 106 |
{ |
| 107 |
char *i; |
| 108 |
|
| 109 |
for (i = s->str; *i; i++) |
| 110 |
{ |
| 111 |
*i = toupper(*i); |
| 112 |
} |
| 113 |
} |
| 114 |
|
| 115 |
|
| 116 |
int |
| 117 |
IsVowel(metastring * s, int pos) |
| 118 |
{ |
| 119 |
char c; |
| 120 |
|
| 121 |
if ((pos < 0) || (pos >= s->length)) |
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return 0; |
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|
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c = *(s->str + pos); |
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if ((c == 'A') || (c == 'E') || (c == 'I') || (c =='O') || |
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(c =='U') || (c == 'Y')) |
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return 1; |
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|
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return 0; |
| 130 |
} |
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|
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|
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int |
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SlavoGermanic(metastring * s) |
| 135 |
{ |
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if ((char *) strstr(s->str, "W")) |
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return 1; |
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else if ((char *) strstr(s->str, "K")) |
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return 1; |
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else if ((char *) strstr(s->str, "CZ")) |
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return 1; |
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else if ((char *) strstr(s->str, "WITZ")) |
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return 1; |
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else |
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return 0; |
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} |
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|
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|
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int |
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GetLength(metastring * s) |
| 151 |
{ |
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return s->length; |
| 153 |
} |
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|
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|
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char |
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GetAt(metastring * s, int pos) |
| 158 |
{ |
| 159 |
if ((pos < 0) || (pos >= s->length)) |
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return '\0'; |
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|
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return ((char) *(s->str + pos)); |
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} |
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|
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|
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void |
| 167 |
SetAt(metastring * s, int pos, char c) |
| 168 |
{ |
| 169 |
if ((pos < 0) || (pos >= s->length)) |
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return; |
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|
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*(s->str + pos) = c; |
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} |
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|
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|
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/* |
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Caveats: the START value is 0 based |
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*/ |
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int |
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StringAt(metastring * s, int start, int length, ...) |
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{ |
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char *test; |
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char *pos; |
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va_list ap; |
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|
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if ((start < 0) || (start >= s->length)) |
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return 0; |
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|
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pos = (s->str + start); |
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va_start(ap, length); |
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|
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do |
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{ |
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test = va_arg(ap, char *); |
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if (*test && (strncmp(pos, test, length) == 0)) |
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return 1; |
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} |
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while (strcmp(test, "")); |
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|
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va_end(ap); |
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|
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return 0; |
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} |
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|
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|
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void |
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MetaphAdd(metastring * s, char *new_str) |
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{ |
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int add_length; |
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|
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if (new_str == NULL) |
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return; |
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|
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add_length = strlen(new_str); |
| 215 |
if ((s->length + add_length) > (s->bufsize - 1)) |
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{ |
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IncreaseBuffer(s, add_length); |
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} |
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|
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strcat(s->str, new_str); |
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s->length += add_length; |
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} |
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|
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|
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void |
| 226 |
DoubleMetaphone(char *str, char **codes) |
| 227 |
{ |
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int length; |
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metastring *original; |
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metastring *primary; |
| 231 |
metastring *secondary; |
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int current; |
| 233 |
int last; |
| 234 |
|
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current = 0; |
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/* we need the real length and last prior to padding */ |
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length = strlen(str); |
| 238 |
last = length - 1; |
| 239 |
original = NewMetaString(str); |
| 240 |
/* Pad original so we can index beyond end */ |
| 241 |
MetaphAdd(original, " "); |
| 242 |
|
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primary = NewMetaString(""); |
| 244 |
secondary = NewMetaString(""); |
| 245 |
primary->free_string_on_destroy = 0; |
| 246 |
secondary->free_string_on_destroy = 0; |
| 247 |
|
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MakeUpper(original); |
| 249 |
|
| 250 |
/* skip these when at start of word */ |
| 251 |
if (StringAt(original, 0, 2, "GN", "KN", "PN", "WR", "PS", "")) |
| 252 |
current += 1; |
| 253 |
|
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/* Initial 'X' is pronounced 'Z' e.g. 'Xavier' */ |
| 255 |
if (GetAt(original, 0) == 'X') |
| 256 |
{ |
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MetaphAdd(primary, "S"); /* 'Z' maps to 'S' */ |
| 258 |
MetaphAdd(secondary, "S"); |
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current += 1; |
| 260 |
} |
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|
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/* main loop */ |
| 263 |
while ((primary->length < 4) || (secondary->length < 4)) |
| 264 |
{ |
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if (current >= length) |
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break; |
| 267 |
|
| 268 |
switch (GetAt(original, current)) |
| 269 |
{ |
| 270 |
case 'A': |
| 271 |
case 'E': |
| 272 |
case 'I': |
| 273 |
case 'O': |
| 274 |
case 'U': |
| 275 |
case 'Y': |
| 276 |
if (current == 0) |
| 277 |
{ |
| 278 |
/* all init vowels now map to 'A' */ |
| 279 |
MetaphAdd(primary, "A"); |
| 280 |
MetaphAdd(secondary, "A"); |
| 281 |
} |
| 282 |
current += 1; |
| 283 |
break; |
| 284 |
|
| 285 |
case 'B': |
| 286 |
|
| 287 |
/* "-mb", e.g", "dumb", already skipped over... */ |
| 288 |
MetaphAdd(primary, "P"); |
| 289 |
MetaphAdd(secondary, "P"); |
| 290 |
|
| 291 |
if (GetAt(original, current + 1) == 'B') |
| 292 |
current += 2; |
| 293 |
else |
| 294 |
current += 1; |
| 295 |
break; |
| 296 |
|
| 297 |
case 'Ç': |
| 298 |
MetaphAdd(primary, "S"); |
| 299 |
MetaphAdd(secondary, "S"); |
| 300 |
current += 1; |
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break; |
| 302 |
|
| 303 |
case 'C': |
| 304 |
/* various germanic */ |
| 305 |
if ((current > 1) |
| 306 |
&& !IsVowel(original, current - 2) |
| 307 |
&& StringAt(original, (current - 1), 3, "ACH", "") |
| 308 |
&& ((GetAt(original, current + 2) != 'I') |
| 309 |
&& ((GetAt(original, current + 2) != 'E') |
| 310 |
|| StringAt(original, (current - 2), 6, "BACHER", |
| 311 |
"MACHER", "")))) |
| 312 |
{ |
| 313 |
MetaphAdd(primary, "K"); |
| 314 |
MetaphAdd(secondary, "K"); |
| 315 |
current += 2; |
| 316 |
break; |
| 317 |
} |
| 318 |
|
| 319 |
/* special case 'caesar' */ |
| 320 |
if ((current == 0) |
| 321 |
&& StringAt(original, current, 6, "CAESAR", "")) |
| 322 |
{ |
| 323 |
MetaphAdd(primary, "S"); |
| 324 |
MetaphAdd(secondary, "S"); |
| 325 |
current += 2; |
| 326 |
break; |
| 327 |
} |
| 328 |
|
| 329 |
/* italian 'chianti' */ |
| 330 |
if (StringAt(original, current, 4, "CHIA", "")) |
| 331 |
{ |
| 332 |
MetaphAdd(primary, "K"); |
| 333 |
MetaphAdd(secondary, "K"); |
| 334 |
current += 2; |
| 335 |
break; |
| 336 |
} |
| 337 |
|
| 338 |
if (StringAt(original, current, 2, "CH", "")) |
| 339 |
{ |
| 340 |
/* find 'michael' */ |
| 341 |
if ((current > 0) |
| 342 |
&& StringAt(original, current, 4, "CHAE", "")) |
| 343 |
{ |
| 344 |
MetaphAdd(primary, "K"); |
| 345 |
MetaphAdd(secondary, "X"); |
| 346 |
current += 2; |
| 347 |
break; |
| 348 |
} |
| 349 |
|
| 350 |
/* greek roots e.g. 'chemistry', 'chorus' */ |
| 351 |
if ((current == 0) |
| 352 |
&& (StringAt(original, (current + 1), 5, "HARAC", "HARIS", "") |
| 353 |
|| StringAt(original, (current + 1), 3, "HOR", |
| 354 |
"HYM", "HIA", "HEM", "")) |
| 355 |
&& !StringAt(original, 0, 5, "CHORE", "")) |
| 356 |
{ |
| 357 |
MetaphAdd(primary, "K"); |
| 358 |
MetaphAdd(secondary, "K"); |
| 359 |
current += 2; |
| 360 |
break; |
| 361 |
} |
| 362 |
|
| 363 |
/* germanic, greek, or otherwise 'ch' for 'kh' sound */ |
| 364 |
if ( |
| 365 |
(StringAt(original, 0, 4, "VAN ", "VON ", "") |
| 366 |
|| StringAt(original, 0, 3, "SCH", "")) |
| 367 |
/* 'architect but not 'arch', 'orchestra', 'orchid' */ |
| 368 |
|| StringAt(original, (current - 2), 6, "ORCHES", |
| 369 |
"ARCHIT", "ORCHID", "") |
| 370 |
|| StringAt(original, (current + 2), 1, "T", "S", |
| 371 |
"") |
| 372 |
|| ((StringAt(original, (current - 1), 1, "A", "O", "U", "E", "") |
| 373 |
|| (current == 0)) |
| 374 |
/* e.g., 'wachtler', 'wechsler', but not 'tichner' */ |
| 375 |
&& StringAt(original, (current + 2), 1, "L", "R", |
| 376 |
"N", "M", "B", "H", "F", "V", "W", " ", ""))) |
| 377 |
{ |
| 378 |
MetaphAdd(primary, "K"); |
| 379 |
MetaphAdd(secondary, "K"); |
| 380 |
} |
| 381 |
else |
| 382 |
{ |
| 383 |
if (current > 0) |
| 384 |
{ |
| 385 |
if (StringAt(original, 0, 2, "MC", "")) |
| 386 |
{ |
| 387 |
/* e.g., "McHugh" */ |
| 388 |
MetaphAdd(primary, "K"); |
| 389 |
MetaphAdd(secondary, "K"); |
| 390 |
} |
| 391 |
else |
| 392 |
{ |
| 393 |
MetaphAdd(primary, "X"); |
| 394 |
MetaphAdd(secondary, "K"); |
| 395 |
} |
| 396 |
} |
| 397 |
else |
| 398 |
{ |
| 399 |
MetaphAdd(primary, "X"); |
| 400 |
MetaphAdd(secondary, "X"); |
| 401 |
} |
| 402 |
} |
| 403 |
current += 2; |
| 404 |
break; |
| 405 |
} |
| 406 |
/* e.g, 'czerny' */ |
| 407 |
if (StringAt(original, current, 2, "CZ", "") |
| 408 |
&& !StringAt(original, (current - 2), 4, "WICZ", "")) |
| 409 |
{ |
| 410 |
MetaphAdd(primary, "S"); |
| 411 |
MetaphAdd(secondary, "X"); |
| 412 |
current += 2; |
| 413 |
break; |
| 414 |
} |
| 415 |
|
| 416 |
/* e.g., 'focaccia' */ |
| 417 |
if (StringAt(original, (current + 1), 3, "CIA", "")) |
| 418 |
{ |
| 419 |
MetaphAdd(primary, "X"); |
| 420 |
MetaphAdd(secondary, "X"); |
| 421 |
current += 3; |
| 422 |
break; |
| 423 |
} |
| 424 |
|
| 425 |
/* double 'C', but not if e.g. 'McClellan' */ |
| 426 |
if (StringAt(original, current, 2, "CC", "") |
| 427 |
&& !((current == 1) && (GetAt(original, 0) == 'M'))) |
| 428 |
{ |
| 429 |
/* 'bellocchio' but not 'bacchus' */ |
| 430 |
if (StringAt(original, (current + 2), 1, "I", "E", "H", "") |
| 431 |
&& !StringAt(original, (current + 2), 2, "HU", "")) |
| 432 |
{ |
| 433 |
/* 'accident', 'accede' 'succeed' */ |
| 434 |
if ( |
| 435 |
((current == 1) |
| 436 |
&& (GetAt(original, current - 1) == 'A')) |
| 437 |
|| StringAt(original, (current - 1), 5, "UCCEE", |
| 438 |
"UCCES", "")) |
| 439 |
{ |
| 440 |
MetaphAdd(primary, "KS"); |
| 441 |
MetaphAdd(secondary, "KS"); |
| 442 |
/* 'bacci', 'bertucci', other italian */ |
| 443 |
} |
| 444 |
else |
| 445 |
{ |
| 446 |
MetaphAdd(primary, "X"); |
| 447 |
MetaphAdd(secondary, "X"); |
| 448 |
} |
| 449 |
current += 3; |
| 450 |
break; |
| 451 |
} |
| 452 |
else |
| 453 |
{ /* Pierce's rule */ |
| 454 |
MetaphAdd(primary, "K"); |
| 455 |
MetaphAdd(secondary, "K"); |
| 456 |
current += 2; |
| 457 |
break; |
| 458 |
} |
| 459 |
} |
| 460 |
|
| 461 |
if (StringAt(original, current, 2, "CK", "CG", "CQ", "")) |
| 462 |
{ |
| 463 |
MetaphAdd(primary, "K"); |
| 464 |
MetaphAdd(secondary, "K"); |
| 465 |
current += 2; |
| 466 |
break; |
| 467 |
} |
| 468 |
|
| 469 |
if (StringAt(original, current, 2, "CI", "CE", "CY", "")) |
| 470 |
{ |
| 471 |
/* italian vs. english */ |
| 472 |
if (StringAt |
| 473 |
(original, current, 3, "CIO", "CIE", "CIA", "")) |
| 474 |
{ |
| 475 |
MetaphAdd(primary, "S"); |
| 476 |
MetaphAdd(secondary, "X"); |
| 477 |
} |
| 478 |
else |
| 479 |
{ |
| 480 |
MetaphAdd(primary, "S"); |
| 481 |
MetaphAdd(secondary, "S"); |
| 482 |
} |
| 483 |
current += 2; |
| 484 |
break; |
| 485 |
} |
| 486 |
|
| 487 |
/* else */ |
| 488 |
MetaphAdd(primary, "K"); |
| 489 |
MetaphAdd(secondary, "K"); |
| 490 |
|
| 491 |
/* name sent in 'mac caffrey', 'mac gregor */ |
| 492 |
if (StringAt(original, (current + 1), 2, " C", " Q", " G", "")) |
| 493 |
current += 3; |
| 494 |
else |
| 495 |
if (StringAt(original, (current + 1), 1, "C", "K", "Q", "") |
| 496 |
&& !StringAt(original, (current + 1), 2, "CE", "CI", "")) |
| 497 |
current += 2; |
| 498 |
else |
| 499 |
current += 1; |
| 500 |
break; |
| 501 |
|
| 502 |
case 'D': |
| 503 |
if (StringAt(original, current, 2, "DG", "")) |
| 504 |
{ |
| 505 |
if (StringAt(original, (current + 2), 1, "I", "E", "Y", "")) |
| 506 |
{ |
| 507 |
/* e.g. 'edge' */ |
| 508 |
MetaphAdd(primary, "J"); |
| 509 |
MetaphAdd(secondary, "J"); |
| 510 |
current += 3; |
| 511 |
break; |
| 512 |
} |
| 513 |
else |
| 514 |
{ |
| 515 |
/* e.g. 'edgar' */ |
| 516 |
MetaphAdd(primary, "TK"); |
| 517 |
MetaphAdd(secondary, "TK"); |
| 518 |
current += 2; |
| 519 |
break; |
| 520 |
} |
| 521 |
} |
| 522 |
|
| 523 |
if (StringAt(original, current, 2, "DT", "DD", "")) |
| 524 |
{ |
| 525 |
MetaphAdd(primary, "T"); |
| 526 |
MetaphAdd(secondary, "T"); |
| 527 |
current += 2; |
| 528 |
break; |
| 529 |
} |
| 530 |
|
| 531 |
/* else */ |
| 532 |
MetaphAdd(primary, "T"); |
| 533 |
MetaphAdd(secondary, "T"); |
| 534 |
current += 1; |
| 535 |
break; |
| 536 |
|
| 537 |
case 'F': |
| 538 |
if (GetAt(original, current + 1) == 'F') |
| 539 |
current += 2; |
| 540 |
else |
| 541 |
current += 1; |
| 542 |
MetaphAdd(primary, "F"); |
| 543 |
MetaphAdd(secondary, "F"); |
| 544 |
break; |
| 545 |
|
| 546 |
case 'G': |
| 547 |
if (GetAt(original, current + 1) == 'H') |
| 548 |
{ |
| 549 |
if ((current > 0) && !IsVowel(original, current - 1)) |
| 550 |
{ |
| 551 |
MetaphAdd(primary, "K"); |
| 552 |
MetaphAdd(secondary, "K"); |
| 553 |
current += 2; |
| 554 |
break; |
| 555 |
} |
| 556 |
|
| 557 |
if (current < 3) |
| 558 |
{ |
| 559 |
/* 'ghislane', ghiradelli */ |
| 560 |
if (current == 0) |
| 561 |
{ |
| 562 |
if (GetAt(original, current + 2) == 'I') |
| 563 |
{ |
| 564 |
MetaphAdd(primary, "J"); |
| 565 |
MetaphAdd(secondary, "J"); |
| 566 |
} |
| 567 |
else |
| 568 |
{ |
| 569 |
MetaphAdd(primary, "K"); |
| 570 |
MetaphAdd(secondary, "K"); |
| 571 |
} |
| 572 |
current += 2; |
| 573 |
break; |
| 574 |
} |
| 575 |
} |
| 576 |
/* Parker's rule (with some further refinements) - e.g., 'hugh' */ |
| 577 |
if ( |
| 578 |
((current > 1) |
| 579 |
&& StringAt(original, (current - 2), 1, "B", "H", "D", "")) |
| 580 |
/* e.g., 'bough' */ |
| 581 |
|| ((current > 2) |
| 582 |
&& StringAt(original, (current - 3), 1, "B", "H", "D", "")) |
| 583 |
/* e.g., 'broughton' */ |
| 584 |
|| ((current > 3) |
| 585 |
&& StringAt(original, (current - 4), 1, "B", "H", ""))) |
| 586 |
{ |
| 587 |
current += 2; |
| 588 |
break; |
| 589 |
} |
| 590 |
else |
| 591 |
{ |
| 592 |
/* e.g., 'laugh', 'McLaughlin', 'cough', 'gough', 'rough', 'tough' */ |
| 593 |
if ((current > 2) |
| 594 |
&& (GetAt(original, current - 1) == 'U') |
| 595 |
&& StringAt(original, (current - 3), 1, "C", |
| 596 |
"G", "L", "R", "T", "")) |
| 597 |
{ |
| 598 |
MetaphAdd(primary, "F"); |
| 599 |
MetaphAdd(secondary, "F"); |
| 600 |
} |
| 601 |
else if ((current > 0) |
| 602 |
&& GetAt(original, current - 1) != 'I') |
| 603 |
{ |
| 604 |
|
| 605 |
|
| 606 |
MetaphAdd(primary, "K"); |
| 607 |
MetaphAdd(secondary, "K"); |
| 608 |
} |
| 609 |
|
| 610 |
current += 2; |
| 611 |
break; |
| 612 |
} |
| 613 |
} |
| 614 |
|
| 615 |
if (GetAt(original, current + 1) == 'N') |
| 616 |
{ |
| 617 |
if ((current == 1) && IsVowel(original, 0) |
| 618 |
&& !SlavoGermanic(original)) |
| 619 |
{ |
| 620 |
MetaphAdd(primary, "KN"); |
| 621 |
MetaphAdd(secondary, "N"); |
| 622 |
} |
| 623 |
else |
| 624 |
/* not e.g. 'cagney' */ |
| 625 |
if (!StringAt(original, (current + 2), 2, "EY", "") |
| 626 |
&& (GetAt(original, current + 1) != 'Y') |
| 627 |
&& !SlavoGermanic(original)) |
| 628 |
{ |
| 629 |
MetaphAdd(primary, "N"); |
| 630 |
MetaphAdd(secondary, "KN"); |
| 631 |
} |
| 632 |
else |
| 633 |
{ |
| 634 |
MetaphAdd(primary, "KN"); |
| 635 |
MetaphAdd(secondary, "KN"); |
| 636 |
} |
| 637 |
current += 2; |
| 638 |
break; |
| 639 |
} |
| 640 |
|
| 641 |
/* 'tagliaro' */ |
| 642 |
if (StringAt(original, (current + 1), 2, "LI", "") |
| 643 |
&& !SlavoGermanic(original)) |
| 644 |
{ |
| 645 |
MetaphAdd(primary, "KL"); |
| 646 |
MetaphAdd(secondary, "L"); |
| 647 |
current += 2; |
| 648 |
break; |
| 649 |
} |
| 650 |
|
| 651 |
/* -ges-,-gep-,-gel-, -gie- at beginning */ |
| 652 |
if ((current == 0) |
| 653 |
&& ((GetAt(original, current + 1) == 'Y') |
| 654 |
|| StringAt(original, (current + 1), 2, "ES", "EP", |
| 655 |
"EB", "EL", "EY", "IB", "IL", "IN", "IE", |
| 656 |
"EI", "ER", ""))) |
| 657 |
{ |
| 658 |
MetaphAdd(primary, "K"); |
| 659 |
MetaphAdd(secondary, "J"); |
| 660 |
current += 2; |
| 661 |
break; |
| 662 |
} |
| 663 |
|
| 664 |
/* -ger-, -gy- */ |
| 665 |
if ( |
| 666 |
(StringAt(original, (current + 1), 2, "ER", "") |
| 667 |
|| (GetAt(original, current + 1) == 'Y')) |
| 668 |
&& !StringAt(original, 0, 6, "DANGER", "RANGER", "MANGER", "") |
| 669 |
&& !StringAt(original, (current - 1), 1, "E", "I", "") |
| 670 |
&& !StringAt(original, (current - 1), 3, "RGY", "OGY", |
| 671 |
"")) |
| 672 |
{ |
| 673 |
MetaphAdd(primary, "K"); |
| 674 |
MetaphAdd(secondary, "J"); |
| 675 |
current += 2; |
| 676 |
break; |
| 677 |
} |
| 678 |
|
| 679 |
/* italian e.g, 'biaggi' */ |
| 680 |
if (StringAt(original, (current + 1), 1, "E", "I", "Y", "") |
| 681 |
|| StringAt(original, (current - 1), 4, "AGGI", "OGGI", "")) |
| 682 |
{ |
| 683 |
/* obvious germanic */ |
| 684 |
if ( |
| 685 |
(StringAt(original, 0, 4, "VAN ", "VON ", "") |
| 686 |
|| StringAt(original, 0, 3, "SCH", "")) |
| 687 |
|| StringAt(original, (current + 1), 2, "ET", "")) |
| 688 |
{ |
| 689 |
MetaphAdd(primary, "K"); |
| 690 |
MetaphAdd(secondary, "K"); |
| 691 |
} |
| 692 |
else |
| 693 |
{ |
| 694 |
/* always soft if french ending */ |
| 695 |
if (StringAt |
| 696 |
(original, (current + 1), 4, "IER ", "")) |
| 697 |
{ |
| 698 |
MetaphAdd(primary, "J"); |
| 699 |
MetaphAdd(secondary, "J"); |
| 700 |
} |
| 701 |
else |
| 702 |
{ |
| 703 |
MetaphAdd(primary, "J"); |
| 704 |
MetaphAdd(secondary, "K"); |
| 705 |
} |
| 706 |
} |
| 707 |
current += 2; |
| 708 |
break; |
| 709 |
} |
| 710 |
|
| 711 |
if (GetAt(original, current + 1) == 'G') |
| 712 |
current += 2; |
| 713 |
else |
| 714 |
current += 1; |
| 715 |
MetaphAdd(primary, "K"); |
| 716 |
MetaphAdd(secondary, "K"); |
| 717 |
break; |
| 718 |
|
| 719 |
case 'H': |
| 720 |
/* only keep if first & before vowel or btw. 2 vowels */ |
| 721 |
if (((current == 0) || IsVowel(original, current - 1)) |
| 722 |
&& IsVowel(original, current + 1)) |
| 723 |
{ |
| 724 |
MetaphAdd(primary, "H"); |
| 725 |
MetaphAdd(secondary, "H"); |
| 726 |
current += 2; |
| 727 |
} |
| 728 |
else /* also takes care of 'HH' */ |
| 729 |
current += 1; |
| 730 |
break; |
| 731 |
|
| 732 |
case 'J': |
| 733 |
/* obvious spanish, 'jose', 'san jacinto' */ |
| 734 |
if (StringAt(original, current, 4, "JOSE", "") |
| 735 |
|| StringAt(original, 0, 4, "SAN ", "")) |
| 736 |
{ |
| 737 |
if (((current == 0) |
| 738 |
&& (GetAt(original, current + 4) == ' ')) |
| 739 |
|| StringAt(original, 0, 4, "SAN ", "")) |
| 740 |
{ |
| 741 |
MetaphAdd(primary, "H"); |
| 742 |
MetaphAdd(secondary, "H"); |
| 743 |
} |
| 744 |
else |
| 745 |
{ |
| 746 |
MetaphAdd(primary, "J"); |
| 747 |
MetaphAdd(secondary, "H"); |
| 748 |
} |
| 749 |
current += 1; |
| 750 |
break; |
| 751 |
} |
| 752 |
|
| 753 |
if ((current == 0) |
| 754 |
&& !StringAt(original, current, 4, "JOSE", "")) |
| 755 |
{ |
| 756 |
MetaphAdd(primary, "J"); /* Yankelovich/Jankelowicz */ |
| 757 |
MetaphAdd(secondary, "A"); |
| 758 |
} |
| 759 |
else |
| 760 |
{ |
| 761 |
/* spanish pron. of e.g. 'bajador' */ |
| 762 |
if (IsVowel(original, current - 1) |
| 763 |
&& !SlavoGermanic(original) |
| 764 |
&& ((GetAt(original, current + 1) == 'A') |
| 765 |
|| (GetAt(original, current + 1) == 'O'))) |
| 766 |
{ |
| 767 |
MetaphAdd(primary, "J"); |
| 768 |
MetaphAdd(secondary, "H"); |
| 769 |
} |
| 770 |
else |
| 771 |
{ |
| 772 |
if (current == last) |
| 773 |
{ |
| 774 |
MetaphAdd(primary, "J"); |
| 775 |
MetaphAdd(secondary, ""); |
| 776 |
} |
| 777 |
else |
| 778 |
{ |
| 779 |
if (!StringAt(original, (current + 1), 1, "L", "T", |
| 780 |
"K", "S", "N", "M", "B", "Z", "") |
| 781 |
&& !StringAt(original, (current - 1), 1, |
| 782 |
"S", "K", "L", "")) |
| 783 |
{ |
| 784 |
MetaphAdd(primary, "J"); |
| 785 |
MetaphAdd(secondary, "J"); |
| 786 |
} |
| 787 |
} |
| 788 |
} |
| 789 |
} |
| 790 |
|
| 791 |
if (GetAt(original, current + 1) == 'J') /* it could happen! */ |
| 792 |
current += 2; |
| 793 |
else |
| 794 |
current += 1; |
| 795 |
break; |
| 796 |
|
| 797 |
case 'K': |
| 798 |
if (GetAt(original, current + 1) == 'K') |
| 799 |
current += 2; |
| 800 |
else |
| 801 |
current += 1; |
| 802 |
MetaphAdd(primary, "K"); |
| 803 |
MetaphAdd(secondary, "K"); |
| 804 |
break; |
| 805 |
|
| 806 |
case 'L': |
| 807 |
if (GetAt(original, current + 1) == 'L') |
| 808 |
{ |
| 809 |
/* spanish e.g. 'cabrillo', 'gallegos' */ |
| 810 |
if (((current == (length - 3)) |
| 811 |
&& StringAt(original, (current - 1), 4, "ILLO", |
| 812 |
"ILLA", "ALLE", "")) |
| 813 |
|| ((StringAt(original, (last - 1), 2, "AS", "OS", "") |
| 814 |
|| StringAt(original, last, 1, "A", "O", "")) |
| 815 |
&& StringAt(original, (current - 1), 4, "ALLE", ""))) |
| 816 |
{ |
| 817 |
MetaphAdd(primary, "L"); |
| 818 |
MetaphAdd(secondary, ""); |
| 819 |
current += 2; |
| 820 |
break; |
| 821 |
} |
| 822 |
current += 2; |
| 823 |
} |
| 824 |
else |
| 825 |
current += 1; |
| 826 |
MetaphAdd(primary, "L"); |
| 827 |
MetaphAdd(secondary, "L"); |
| 828 |
break; |
| 829 |
|
| 830 |
case 'M': |
| 831 |
if ((StringAt(original, (current - 1), 3, "UMB", "") |
| 832 |
&& (((current + 1) == last) |
| 833 |
|| StringAt(original, (current + 2), 2, "ER", ""))) |
| 834 |
/* 'dumb','thumb' */ |
| 835 |
|| (GetAt(original, current + 1) == 'M')) |
| 836 |
current += 2; |
| 837 |
else |
| 838 |
current += 1; |
| 839 |
MetaphAdd(primary, "M"); |
| 840 |
MetaphAdd(secondary, "M"); |
| 841 |
break; |
| 842 |
|
| 843 |
case 'N': |
| 844 |
if (GetAt(original, current + 1) == 'N') |
| 845 |
current += 2; |
| 846 |
else |
| 847 |
current += 1; |
| 848 |
MetaphAdd(primary, "N"); |
| 849 |
MetaphAdd(secondary, "N"); |
| 850 |
break; |
| 851 |
|
| 852 |
case 'Ñ': |
| 853 |
current += 1; |
| 854 |
MetaphAdd(primary, "N"); |
| 855 |
MetaphAdd(secondary, "N"); |
| 856 |
break; |
| 857 |
|
| 858 |
case 'P': |
| 859 |
if (GetAt(original, current + 1) == 'H') |
| 860 |
{ |
| 861 |
MetaphAdd(primary, "F"); |
| 862 |
MetaphAdd(secondary, "F"); |
| 863 |
current += 2; |
| 864 |
break; |
| 865 |
} |
| 866 |
|
| 867 |
/* also account for "campbell", "raspberry" */ |
| 868 |
if (StringAt(original, (current + 1), 1, "P", "B", "")) |
| 869 |
current += 2; |
| 870 |
else |
| 871 |
current += 1; |
| 872 |
MetaphAdd(primary, "P"); |
| 873 |
MetaphAdd(secondary, "P"); |
| 874 |
break; |
| 875 |
|
| 876 |
case 'Q': |
| 877 |
if (GetAt(original, current + 1) == 'Q') |
| 878 |
current += 2; |
| 879 |
else |
| 880 |
current += 1; |
| 881 |
MetaphAdd(primary, "K"); |
| 882 |
MetaphAdd(secondary, "K"); |
| 883 |
break; |
| 884 |
|
| 885 |
case 'R': |
| 886 |
/* french e.g. 'rogier', but exclude 'hochmeier' */ |
| 887 |
if ((current == last) |
| 888 |
&& !SlavoGermanic(original) |
| 889 |
&& StringAt(original, (current - 2), 2, "IE", "") |
| 890 |
&& !StringAt(original, (current - 4), 2, "ME", "MA", "")) |
| 891 |
{ |
| 892 |
MetaphAdd(primary, ""); |
| 893 |
MetaphAdd(secondary, "R"); |
| 894 |
} |
| 895 |
else |
| 896 |
{ |
| 897 |
MetaphAdd(primary, "R"); |
| 898 |
MetaphAdd(secondary, "R"); |
| 899 |
} |
| 900 |
|
| 901 |
if (GetAt(original, current + 1) == 'R') |
| 902 |
current += 2; |
| 903 |
else |
| 904 |
current += 1; |
| 905 |
break; |
| 906 |
|
| 907 |
case 'S': |
| 908 |
/* special cases 'island', 'isle', 'carlisle', 'carlysle' */ |
| 909 |
if (StringAt(original, (current - 1), 3, "ISL", "YSL", "")) |
| 910 |
{ |
| 911 |
current += 1; |
| 912 |
break; |
| 913 |
} |
| 914 |
|
| 915 |
/* special case 'sugar-' */ |
| 916 |
if ((current == 0) |
| 917 |
&& StringAt(original, current, 5, "SUGAR", "")) |
| 918 |
{ |
| 919 |
MetaphAdd(primary, "X"); |
| 920 |
MetaphAdd(secondary, "S"); |
| 921 |
current += 1; |
| 922 |
break; |
| 923 |
} |
| 924 |
|
| 925 |
if (StringAt(original, current, 2, "SH", "")) |
| 926 |
{ |
| 927 |
/* germanic */ |
| 928 |
if (StringAt |
| 929 |
(original, (current + 1), 4, "HEIM", "HOEK", "HOLM", |
| 930 |
"HOLZ", "")) |
| 931 |
{ |
| 932 |
MetaphAdd(primary, "S"); |
| 933 |
MetaphAdd(secondary, "S"); |
| 934 |
} |
| 935 |
else |
| 936 |
{ |
| 937 |
MetaphAdd(primary, "X"); |
| 938 |
MetaphAdd(secondary, "X"); |
| 939 |
} |
| 940 |
current += 2; |
| 941 |
break; |
| 942 |
} |
| 943 |
|
| 944 |
/* italian & armenian */ |
| 945 |
if (StringAt(original, current, 3, "SIO", "SIA", "") |
| 946 |
|| StringAt(original, current, 4, "SIAN", "")) |
| 947 |
{ |
| 948 |
if (!SlavoGermanic(original)) |
| 949 |
{ |
| 950 |
MetaphAdd(primary, "S"); |
| 951 |
MetaphAdd(secondary, "X"); |
| 952 |
} |
| 953 |
else |
| 954 |
{ |
| 955 |
MetaphAdd(primary, "S"); |
| 956 |
MetaphAdd(secondary, "S"); |
| 957 |
} |
| 958 |
current += 3; |
| 959 |
break; |
| 960 |
} |
| 961 |
|
| 962 |
/* german & anglicisations, e.g. 'smith' match 'schmidt', 'snider' match 'schneider' |
| 963 |
also, -sz- in slavic language altho in hungarian it is pronounced 's' */ |
| 964 |
if (((current == 0) |
| 965 |
&& StringAt(original, (current + 1), 1, "M", "N", "L", "W", "")) |
| 966 |
|| StringAt(original, (current + 1), 1, "Z", "")) |
| 967 |
{ |
| 968 |
MetaphAdd(primary, "S"); |
| 969 |
MetaphAdd(secondary, "X"); |
| 970 |
if (StringAt(original, (current + 1), 1, "Z", "")) |
| 971 |
current += 2; |
| 972 |
else |
| 973 |
current += 1; |
| 974 |
break; |
| 975 |
} |
| 976 |
|
| 977 |
if (StringAt(original, current, 2, "SC", "")) |
| 978 |
{ |
| 979 |
/* Schlesinger's rule */ |
| 980 |
if (GetAt(original, current + 2) == 'H') |
| 981 |
{ |
| 982 |
/* dutch origin, e.g. 'school', 'schooner' */ |
| 983 |
if (StringAt(original, (current + 3), 2, "OO", "ER", "EN", |
| 984 |
"UY", "ED", "EM", "")) |
| 985 |
{ |
| 986 |
/* 'schermerhorn', 'schenker' */ |
| 987 |
if (StringAt(original, (current + 3), 2, "ER", "EN", "")) |
| 988 |
{ |
| 989 |
MetaphAdd(primary, "X"); |
| 990 |
MetaphAdd(secondary, "SK"); |
| 991 |
} |
| 992 |
else |
| 993 |
{ |
| 994 |
MetaphAdd(primary, "SK"); |
| 995 |
MetaphAdd(secondary, "SK"); |
| 996 |
} |
| 997 |
current += 3; |
| 998 |
break; |
| 999 |
} |
| 1000 |
else |
| 1001 |
{ |
| 1002 |
if ((current == 0) && !IsVowel(original, 3) |
| 1003 |
&& (GetAt(original, 3) != 'W')) |
| 1004 |
{ |
| 1005 |
MetaphAdd(primary, "X"); |
| 1006 |
MetaphAdd(secondary, "S"); |
| 1007 |
} |
| 1008 |
else |
| 1009 |
{ |
| 1010 |
MetaphAdd(primary, "X"); |
| 1011 |
MetaphAdd(secondary, "X"); |
| 1012 |
} |
| 1013 |
current += 3; |
| 1014 |
break; |
| 1015 |
} |
| 1016 |
|
| 1017 |
if (StringAt(original, (current + 2), 1, "I", "E", "Y", "")) |
| 1018 |
{ |
| 1019 |
MetaphAdd(primary, "S"); |
| 1020 |
MetaphAdd(secondary, "S"); |
| 1021 |
current += 3; |
| 1022 |
break; |
| 1023 |
} |
| 1024 |
/* else */ |
| 1025 |
MetaphAdd(primary, "SK"); |
| 1026 |
MetaphAdd(secondary, "SK"); |
| 1027 |
current += 3; |
| 1028 |
break; |
| 1029 |
} |
| 1030 |
} |
| 1031 |
|
| 1032 |
/* french e.g. 'resnais', 'artois' */ |
| 1033 |
if ((current == last) |
| 1034 |
&& StringAt(original, (current - 2), 2, "AI", "OI", "")) |
| 1035 |
{ |
| 1036 |
MetaphAdd(primary, ""); |
| 1037 |
MetaphAdd(secondary, "S"); |
| 1038 |
} |
| 1039 |
else |
| 1040 |
{ |
| 1041 |
MetaphAdd(primary, "S"); |
| 1042 |
MetaphAdd(secondary, "S"); |
| 1043 |
} |
| 1044 |
|
| 1045 |
if (StringAt(original, (current + 1), 1, "S", "Z", "")) |
| 1046 |
current += 2; |
| 1047 |
else |
| 1048 |
current += 1; |
| 1049 |
break; |
| 1050 |
|
| 1051 |
case 'T': |
| 1052 |
if (StringAt(original, current, 4, "TION", "")) |
| 1053 |
{ |
| 1054 |
MetaphAdd(primary, "X"); |
| 1055 |
MetaphAdd(secondary, "X"); |
| 1056 |
current += 3; |
| 1057 |
break; |
| 1058 |
} |
| 1059 |
|
| 1060 |
if (StringAt(original, current, 3, "TIA", "TCH", "")) |
| 1061 |
{ |
| 1062 |
MetaphAdd(primary, "X"); |
| 1063 |
MetaphAdd(secondary, "X"); |
| 1064 |
current += 3; |
| 1065 |
break; |
| 1066 |
} |
| 1067 |
|
| 1068 |
if (StringAt(original, current, 2, "TH", "") |
| 1069 |
|| StringAt(original, current, 3, "TTH", "")) |
| 1070 |
{ |
| 1071 |
/* special case 'thomas', 'thames' or germanic */ |
| 1072 |
if (StringAt(original, (current + 2), 2, "OM", "AM", "") |
| 1073 |
|| StringAt(original, 0, 4, "VAN ", "VON ", "") |
| 1074 |
|| StringAt(original, 0, 3, "SCH", "")) |
| 1075 |
{ |
| 1076 |
MetaphAdd(primary, "T"); |
| 1077 |
MetaphAdd(secondary, "T"); |
| 1078 |
} |
| 1079 |
else |
| 1080 |
{ |
| 1081 |
MetaphAdd(primary, "0"); |
| 1082 |
MetaphAdd(secondary, "T"); |
| 1083 |
} |
| 1084 |
current += 2; |
| 1085 |
break; |
| 1086 |
} |
| 1087 |
|
| 1088 |
if (StringAt(original, (current + 1), 1, "T", "D", "")) |
| 1089 |
current += 2; |
| 1090 |
else |
| 1091 |
current += 1; |
| 1092 |
MetaphAdd(primary, "T"); |
| 1093 |
MetaphAdd(secondary, "T"); |
| 1094 |
break; |
| 1095 |
|
| 1096 |
case 'V': |
| 1097 |
if (GetAt(original, current + 1) == 'V') |
| 1098 |
current += 2; |
| 1099 |
else |
| 1100 |
current += 1; |
| 1101 |
MetaphAdd(primary, "F"); |
| 1102 |
MetaphAdd(secondary, "F"); |
| 1103 |
break; |
| 1104 |
|
| 1105 |
case 'W': |
| 1106 |
/* can also be in middle of word */ |
| 1107 |
if (StringAt(original, current, 2, "WR", "")) |
| 1108 |
{ |
| 1109 |
MetaphAdd(primary, "R"); |
| 1110 |
MetaphAdd(secondary, "R"); |
| 1111 |
current += 2; |
| 1112 |
break; |
| 1113 |
} |
| 1114 |
|
| 1115 |
if ((current == 0) |
| 1116 |
&& (IsVowel(original, current + 1) |
| 1117 |
|| StringAt(original, current, 2, "WH", ""))) |
| 1118 |
{ |
| 1119 |
/* Wasserman should match Vasserman */ |
| 1120 |
if (IsVowel(original, current + 1)) |
| 1121 |
{ |
| 1122 |
MetaphAdd(primary, "A"); |
| 1123 |
MetaphAdd(secondary, "F"); |
| 1124 |
} |
| 1125 |
else |
| 1126 |
{ |
| 1127 |
/* need Uomo to match Womo */ |
| 1128 |
MetaphAdd(primary, "A"); |
| 1129 |
MetaphAdd(secondary, "A"); |
| 1130 |
} |
| 1131 |
} |
| 1132 |
|
| 1133 |
/* Arnow should match Arnoff */ |
| 1134 |
if (((current == last) && IsVowel(original, current - 1)) |
| 1135 |
|| StringAt(original, (current - 1), 5, "EWSKI", "EWSKY", |
| 1136 |
"OWSKI", "OWSKY", "") |
| 1137 |
|| StringAt(original, 0, 3, "SCH", "")) |
| 1138 |
{ |
| 1139 |
MetaphAdd(primary, ""); |
| 1140 |
MetaphAdd(secondary, "F"); |
| 1141 |
current += 1; |
| 1142 |
break; |
| 1143 |
} |
| 1144 |
|
| 1145 |
/* polish e.g. 'filipowicz' */ |
| 1146 |
if (StringAt(original, current, 4, "WICZ", "WITZ", "")) |
| 1147 |
{ |
| 1148 |
MetaphAdd(primary, "TS"); |
| 1149 |
MetaphAdd(secondary, "FX"); |
| 1150 |
current += 4; |
| 1151 |
break; |
| 1152 |
} |
| 1153 |
|
| 1154 |
/* else skip it */ |
| 1155 |
current += 1; |
| 1156 |
break; |
| 1157 |
|
| 1158 |
case 'X': |
| 1159 |
/* french e.g. breaux */ |
| 1160 |
if (!((current == last) |
| 1161 |
&& (StringAt(original, (current - 3), 3, "IAU", "EAU", "") |
| 1162 |
|| StringAt(original, (current - 2), 2, "AU", "OU", "")))) |
| 1163 |
{ |
| 1164 |
MetaphAdd(primary, "KS"); |
| 1165 |
MetaphAdd(secondary, "KS"); |
| 1166 |
} |
| 1167 |
|
| 1168 |
|
| 1169 |
if (StringAt(original, (current + 1), 1, "C", "X", "")) |
| 1170 |
current += 2; |
| 1171 |
else |
| 1172 |
current += 1; |
| 1173 |
break; |
| 1174 |
|
| 1175 |
case 'Z': |
| 1176 |
/* chinese pinyin e.g. 'zhao' */ |
| 1177 |
if (GetAt(original, current + 1) == 'H') |
| 1178 |
{ |
| 1179 |
MetaphAdd(primary, "J"); |
| 1180 |
MetaphAdd(secondary, "J"); |
| 1181 |
current += 2; |
| 1182 |
break; |
| 1183 |
} |
| 1184 |
else if (StringAt(original, (current + 1), 2, "ZO", "ZI", "ZA", "") |
| 1185 |
|| (SlavoGermanic(original) |
| 1186 |
&& ((current > 0) |
| 1187 |
&& GetAt(original, current - 1) != 'T'))) |
| 1188 |
{ |
| 1189 |
MetaphAdd(primary, "S"); |
| 1190 |
MetaphAdd(secondary, "TS"); |
| 1191 |
} |
| 1192 |
else |
| 1193 |
{ |
| 1194 |
MetaphAdd(primary, "S"); |
| 1195 |
MetaphAdd(secondary, "S"); |
| 1196 |
} |
| 1197 |
|
| 1198 |
if (GetAt(original, current + 1) == 'Z') |
| 1199 |
current += 2; |
| 1200 |
else |
| 1201 |
current += 1; |
| 1202 |
break; |
| 1203 |
|
| 1204 |
default: |
| 1205 |
current += 1; |
| 1206 |
} |
| 1207 |
/* printf("PRIMARY: %s\n", primary->str); |
| 1208 |
printf("SECONDARY: %s\n", secondary->str); */ |
| 1209 |
} |
| 1210 |
|
| 1211 |
|
| 1212 |
if (primary->length > 4) |
| 1213 |
SetAt(primary, 4, '\0'); |
| 1214 |
|
| 1215 |
if (secondary->length > 4) |
| 1216 |
SetAt(secondary, 4, '\0'); |
| 1217 |
|
| 1218 |
*codes = primary->str; |
| 1219 |
*++codes = secondary->str; |
| 1220 |
|
| 1221 |
DestroyMetaString(original); |
| 1222 |
DestroyMetaString(primary); |
| 1223 |
DestroyMetaString(secondary); |
| 1224 |
} |
| 1225 |
|
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