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Comment:In the spellfix phonehash() function, add letter W into the same character class as V.
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SHA1:7536101317c00fbb5bf555120feb55b9bc40e8ba
User & Date: drh 2012-08-31 14:55:05
Context
2012-09-03
11:39
Add resources describing the version number and other information to EXEs and DLLs generated using MSVC. check-in: a15a7084 user: drh tags: trunk
10:32
Add Win32 version resources to the applicable binaries built by the MSVC makefile. check-in: e2f27d28 user: mistachkin tags: win32Resources
2012-08-31
14:55
In the spellfix phonehash() function, add letter W into the same character class as V. check-in: 75361013 user: drh tags: trunk
12:31
Changes for ERROR_PATH_NOT_FOUND in addition to ERROR_FILE_NOT_FOUND in winAccess(). check-in: 527340ab user: drh tags: trunk
Changes
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Changes to src/test_spellfix.c. 

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#include <ctype.h>

/*
** Character classes for ASCII characters:
**
**   0   ''        Silent letters:   H W
**   1   'A'       Any vowel:   A E I O U (Y)
**   2   'B'       A bilabeal stop or fricative:  B F P V
**   3   'C'       Other fricatives or back stops:  C G J K Q S X Z
**   4   'D'       Alveolar stops:  D T
**   5   'H'       Letter H at the beginning of a word
**   6   'L'       Glide:  L
**   7   'R'       Semivowel:  R
**   8   'M'       Nasals:  M N
**   9   'W'       Letter W at the beginning of a word
**   10  'Y'       Letter Y at the beginning of a word.
**   11  '9'       Digits: 0 1 2 3 4 5 6 7 8 9
**   12  ' '       White space
**   13  '?'       Other.
*/
#define CCLASS_SILENT         0
#define CCLASS_VOWEL          1
#define CCLASS_B              2
#define CCLASS_C              3
#define CCLASS_D              4
#define CCLASS_H              5
#define CCLASS_L              6
#define CCLASS_R              7
#define CCLASS_M              8
#define CCLASS_W              9
#define CCLASS_Y             10
#define CCLASS_DIGIT         11
#define CCLASS_SPACE         12
#define CCLASS_OTHER         13

/*
** The following table gives the character class for non-initial ASCII
** characters.
*/
static const unsigned char midClass[] = {
 /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
................................................................................
 /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
 /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
 /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
 /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
 /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
 /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
 /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
 /* W */ CCLASS_SILENT,   /* X */ CCLASS_C,       /* Y */ CCLASS_VOWEL,
 /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
 /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
 /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
 /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
 /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
 /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
 /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
 /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
 /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
 /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_SILENT,
 /* x */ CCLASS_C,        /* y */ CCLASS_VOWEL,   /* z */ CCLASS_C,
 /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
 /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
};
/* 
** This tables gives the character class for ASCII characters that form the
** initial character of a word.  The only difference from midClass is with
................................................................................
 /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
 /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
 /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
 /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
 /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
 /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
 /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
 /* W */ CCLASS_W,        /* X */ CCLASS_C,       /* Y */ CCLASS_Y,
 /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
 /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
 /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
 /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
 /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
 /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
 /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
 /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
 /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
 /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_W,
 /* x */ CCLASS_C,        /* y */ CCLASS_Y,       /* z */ CCLASS_C,
 /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
 /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
};

/*
** Mapping from the character class number (0-13) to a symbol for each
** character class.  Note that initClass[] can be used to map the class
** symbol back into the class number.
*/
static const unsigned char className[] = ".ABCDHLRMWY9 ?";

/*
** Generate a "phonetic hash" from a string of ASCII characters
** in zIn[0..nIn-1].
**
**   * Map characters by character class as defined above.
**   * Omit double-letters








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#include <ctype.h>

/*
** Character classes for ASCII characters:
**
**   0   ''        Silent letters:   H W
**   1   'A'       Any vowel:   A E I O U (Y)
**   2   'B'       A bilabeal stop or fricative:  B F P V W
**   3   'C'       Other fricatives or back stops:  C G J K Q S X Z
**   4   'D'       Alveolar stops:  D T
**   5   'H'       Letter H at the beginning of a word
**   6   'L'       Glide:  L
**   7   'R'       Semivowel:  R
**   8   'M'       Nasals:  M N

**   9   'Y'       Letter Y at the beginning of a word.
**   10  '9'       Digits: 0 1 2 3 4 5 6 7 8 9
**   11  ' '       White space
**   12  '?'       Other.
*/
#define CCLASS_SILENT         0
#define CCLASS_VOWEL          1
#define CCLASS_B              2
#define CCLASS_C              3
#define CCLASS_D              4
#define CCLASS_H              5
#define CCLASS_L              6
#define CCLASS_R              7
#define CCLASS_M              8

#define CCLASS_Y              9
#define CCLASS_DIGIT         10
#define CCLASS_SPACE         11
#define CCLASS_OTHER         12

/*
** The following table gives the character class for non-initial ASCII
** characters.
*/
static const unsigned char midClass[] = {
 /*   */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   /*   */ CCLASS_OTHER,
................................................................................
 /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
 /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
 /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
 /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
 /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
 /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
 /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
 /* W */ CCLASS_B,        /* X */ CCLASS_C,       /* Y */ CCLASS_VOWEL,
 /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
 /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
 /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
 /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
 /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
 /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
 /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
 /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
 /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
 /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_B,
 /* x */ CCLASS_C,        /* y */ CCLASS_VOWEL,   /* z */ CCLASS_C,
 /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
 /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
};
/* 
** This tables gives the character class for ASCII characters that form the
** initial character of a word.  The only difference from midClass is with
................................................................................
 /* B */ CCLASS_B,        /* C */ CCLASS_C,       /* D */ CCLASS_D,
 /* E */ CCLASS_VOWEL,    /* F */ CCLASS_B,       /* G */ CCLASS_C,
 /* H */ CCLASS_SILENT,   /* I */ CCLASS_VOWEL,   /* J */ CCLASS_C,
 /* K */ CCLASS_C,        /* L */ CCLASS_L,       /* M */ CCLASS_M,
 /* N */ CCLASS_M,        /* O */ CCLASS_VOWEL,   /* P */ CCLASS_B,
 /* Q */ CCLASS_C,        /* R */ CCLASS_R,       /* S */ CCLASS_C,
 /* T */ CCLASS_D,        /* U */ CCLASS_VOWEL,   /* V */ CCLASS_B,
 /* W */ CCLASS_B,        /* X */ CCLASS_C,       /* Y */ CCLASS_Y,
 /* Z */ CCLASS_C,        /* [ */ CCLASS_OTHER,   /* \ */ CCLASS_OTHER,
 /* ] */ CCLASS_OTHER,    /* ^ */ CCLASS_OTHER,   /* _ */ CCLASS_OTHER,
 /* ` */ CCLASS_OTHER,    /* a */ CCLASS_VOWEL,   /* b */ CCLASS_B,
 /* c */ CCLASS_C,        /* d */ CCLASS_D,       /* e */ CCLASS_VOWEL,
 /* f */ CCLASS_B,        /* g */ CCLASS_C,       /* h */ CCLASS_SILENT,
 /* i */ CCLASS_VOWEL,    /* j */ CCLASS_C,       /* k */ CCLASS_C,
 /* l */ CCLASS_L,        /* m */ CCLASS_M,       /* n */ CCLASS_M,
 /* o */ CCLASS_VOWEL,    /* p */ CCLASS_B,       /* q */ CCLASS_C,
 /* r */ CCLASS_R,        /* s */ CCLASS_C,       /* t */ CCLASS_D,
 /* u */ CCLASS_VOWEL,    /* v */ CCLASS_B,       /* w */ CCLASS_B,
 /* x */ CCLASS_C,        /* y */ CCLASS_Y,       /* z */ CCLASS_C,
 /* { */ CCLASS_OTHER,    /* | */ CCLASS_OTHER,   /* } */ CCLASS_OTHER,
 /* ~ */ CCLASS_OTHER,    /*   */ CCLASS_OTHER,   
};

/*
** Mapping from the character class number (0-13) to a symbol for each
** character class.  Note that initClass[] can be used to map the class
** symbol back into the class number.
*/
static const unsigned char className[] = ".ABCDHLRMY9 ?";

/*
** Generate a "phonetic hash" from a string of ASCII characters
** in zIn[0..nIn-1].
**
**   * Map characters by character class as defined above.
**   * Omit double-letters

Changes to test/spellfix.test. 

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  execsql { CREATE VIRTUAL TABLE t1 USING spellfix1 }
  foreach word $vocab {
    execsql { INSERT INTO t1(word) VALUES($word) }
  }
} {}

foreach {tn word res} {
  1   raxpi*     {rasping 5 rasped 5 raspberry 6 rasp 4 rasps 4}
  2   ril*       {rail 4 railed 4 railer 4 railers 4 railing 4}
  3   rilis*     {realism 6 realist 6 realistic 6 realistically 6 realists 6}
  4   reail*     {real 3 realest 3 realign 3 realigned 3 realigning 3}
  5   ras*       {rascal 3 rascally 3 rascals 3 rash 3 rasher 3}
  6   realistss* {realists 8 realigns 8 realistic 9 realistically 9 realest 7}
  7   realistss  {realists 8 realist 7 realigns 8 realistic 9 realest 7}
  8   rllation*  {realities 9 reality 7 rallied 7 railed 4}








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  execsql { CREATE VIRTUAL TABLE t1 USING spellfix1 }
  foreach word $vocab {
    execsql { INSERT INTO t1(word) VALUES($word) }
  }
} {}

foreach {tn word res} {
  1   raxpi*     {rasping 5 rasped 5 ragweed 5 raspberry 6 rasp 4}
  2   ril*       {rail 4 railed 4 railer 4 railers 4 railing 4}
  3   rilis*     {realism 6 realist 6 realistic 6 realistically 6 realists 6}
  4   reail*     {real 3 realest 3 realign 3 realigned 3 realigning 3}
  5   ras*       {rascal 3 rascally 3 rascals 3 rash 3 rasher 3}
  6   realistss* {realists 8 realigns 8 realistic 9 realistically 9 realest 7}
  7   realistss  {realists 8 realist 7 realigns 8 realistic 9 realest 7}
  8   rllation*  {realities 9 reality 7 rallied 7 railed 4}

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