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Defines | Functions | Variables

fuzzystrmatch.c File Reference

#include "postgres.h"
#include <ctype.h>
#include "mb/pg_wchar.h"
#include "utils/builtins.h"
#include "levenshtein.c"
Include dependency graph for fuzzystrmatch.c:

Go to the source code of this file.

Defines

#define SOUNDEX_LEN   4
#define MAX_METAPHONE_STRLEN   255
#define META_ERROR   FALSE
#define META_SUCCESS   TRUE
#define META_FAILURE   FALSE
#define SH   'X'
#define TH   '0'
#define isvowel(c)   (getcode(c) & 1)
#define NOCHANGE(c)   (getcode(c) & 2)
#define AFFECTH(c)   (getcode(c) & 4)
#define MAKESOFT(c)   (getcode(c) & 8)
#define NOGHTOF(c)   (getcode(c) & 16)
#define LEVENSHTEIN_LESS_EQUAL
#define Next_Letter   (toupper((unsigned char) word[w_idx+1]))
#define Curr_Letter   (toupper((unsigned char) word[w_idx]))
#define Look_Back_Letter(n)   (w_idx >= (n) ? toupper((unsigned char) word[w_idx-(n)]) : '\0')
#define Prev_Letter   (Look_Back_Letter(1))
#define After_Next_Letter   (Next_Letter != '\0' ? toupper((unsigned char) word[w_idx+2]) : '\0')
#define Look_Ahead_Letter(n)   toupper((unsigned char) Lookahead(word+w_idx, n))
#define Phonize(c)   do {(*phoned_word)[p_idx++] = c;} while (0)
#define End_Phoned_Word   do {(*phoned_word)[p_idx] = '\0';} while (0)
#define Phone_Len   (p_idx)
#define Isbreak(c)   (!isalpha((unsigned char) (c)))

Functions

Datum levenshtein_with_costs (PG_FUNCTION_ARGS)
Datum levenshtein (PG_FUNCTION_ARGS)
Datum levenshtein_less_equal_with_costs (PG_FUNCTION_ARGS)
Datum levenshtein_less_equal (PG_FUNCTION_ARGS)
Datum metaphone (PG_FUNCTION_ARGS)
Datum soundex (PG_FUNCTION_ARGS)
Datum difference (PG_FUNCTION_ARGS)
static void _soundex (const char *instr, char *outstr)
static char soundex_code (char letter)
static char Lookahead (char *word, int how_far)
static int _metaphone (char *word, int max_phonemes, char **phoned_word)
static int getcode (char c)
static bool rest_of_char_same (const char *s1, const char *s2, int len)
 PG_FUNCTION_INFO_V1 (levenshtein_with_costs)
 PG_FUNCTION_INFO_V1 (levenshtein)
 PG_FUNCTION_INFO_V1 (levenshtein_less_equal_with_costs)
 PG_FUNCTION_INFO_V1 (levenshtein_less_equal)
 PG_FUNCTION_INFO_V1 (metaphone)
 PG_FUNCTION_INFO_V1 (soundex)
 PG_FUNCTION_INFO_V1 (difference)

Variables

 PG_MODULE_MAGIC
static const char * soundex_table = "01230120022455012623010202"
static const char _codes [26]

Define Documentation

#define AFFECTH (   c  )     (getcode(c) & 4)

Definition at line 161 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define After_Next_Letter   (Next_Letter != '\0' ? toupper((unsigned char) word[w_idx+2]) : '\0')

Definition at line 313 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define Curr_Letter   (toupper((unsigned char) word[w_idx]))

Definition at line 306 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define End_Phoned_Word   do {(*phoned_word)[p_idx] = '\0';} while (0)

Definition at line 338 of file fuzzystrmatch.c.

#define Isbreak (   c  )     (!isalpha((unsigned char) (c)))

Definition at line 343 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define isvowel (   c  )     (getcode(c) & 1)

Definition at line 155 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define LEVENSHTEIN_LESS_EQUAL

Definition at line 183 of file fuzzystrmatch.c.

#define Look_Ahead_Letter (   n  )     toupper((unsigned char) Lookahead(word+w_idx, n))

Definition at line 315 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define Look_Back_Letter (   n  )     (w_idx >= (n) ? toupper((unsigned char) word[w_idx-(n)]) : '\0')

Definition at line 308 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define MAKESOFT (   c  )     (getcode(c) & 8)

Definition at line 164 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define MAX_METAPHONE_STRLEN   255

Definition at line 83 of file fuzzystrmatch.c.

Referenced by metaphone().

#define META_ERROR   FALSE

Definition at line 115 of file fuzzystrmatch.c.

#define META_FAILURE   FALSE

Definition at line 117 of file fuzzystrmatch.c.

#define META_SUCCESS   TRUE

Definition at line 116 of file fuzzystrmatch.c.

Referenced by _metaphone(), and metaphone().

#define Next_Letter   (toupper((unsigned char) word[w_idx+1]))

Definition at line 304 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define NOCHANGE (   c  )     (getcode(c) & 2)

Definition at line 158 of file fuzzystrmatch.c.

#define NOGHTOF (   c  )     (getcode(c) & 16)

Definition at line 167 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define Phone_Len   (p_idx)

Definition at line 340 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define Phonize (   c  )     do {(*phoned_word)[p_idx++] = c;} while (0)

Definition at line 336 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define Prev_Letter   (Look_Back_Letter(1))

Definition at line 311 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define SH   'X'

Definition at line 126 of file fuzzystrmatch.c.

Referenced by _metaphone().

#define SOUNDEX_LEN   4

Definition at line 65 of file fuzzystrmatch.c.

Referenced by _soundex(), difference(), and soundex().

#define TH   '0'

Definition at line 127 of file fuzzystrmatch.c.

Referenced by _metaphone().


Function Documentation

static int _metaphone ( char *  word,
int  max_phonemes,
char **  phoned_word 
) [static]

Definition at line 347 of file fuzzystrmatch.c.

References AFFECTH, After_Next_Letter, Curr_Letter, elog, ERROR, Isbreak, isvowel, Look_Ahead_Letter, Look_Back_Letter, MAKESOFT, META_SUCCESS, Next_Letter, NOGHTOF, NULL, palloc(), Phone_Len, Phonize, Prev_Letter, SH, and TH.

Referenced by metaphone().

{
    int         w_idx = 0;      /* point in the phonization we're at. */
    int         p_idx = 0;      /* end of the phoned phrase */

    /*-- Parameter checks --*/

    /*
     * Shouldn't be necessary, but left these here anyway jec Aug 3, 2001
     */

    /* Negative phoneme length is meaningless */
    if (!(max_phonemes > 0))
        /* internal error */
        elog(ERROR, "metaphone: Requested output length must be > 0");

    /* Empty/null string is meaningless */
    if ((word == NULL) || !(strlen(word) > 0))
        /* internal error */
        elog(ERROR, "metaphone: Input string length must be > 0");

    /*-- Allocate memory for our phoned_phrase --*/
    if (max_phonemes == 0)
    {                           /* Assume largest possible */
        *phoned_word = palloc(sizeof(char) * strlen(word) +1);
    }
    else
    {
        *phoned_word = palloc(sizeof(char) * max_phonemes + 1);
    }

    /*-- The first phoneme has to be processed specially. --*/
    /* Find our first letter */
    for (; !isalpha((unsigned char) (Curr_Letter)); w_idx++)
    {
        /* On the off chance we were given nothing but crap... */
        if (Curr_Letter == '\0')
        {
            End_Phoned_Word;
            return META_SUCCESS;    /* For testing */
        }
    }

    switch (Curr_Letter)
    {
            /* AE becomes E */
        case 'A':
            if (Next_Letter == 'E')
            {
                Phonize('E');
                w_idx += 2;
            }
            /* Remember, preserve vowels at the beginning */
            else
            {
                Phonize('A');
                w_idx++;
            }
            break;
            /* [GKP]N becomes N */
        case 'G':
        case 'K':
        case 'P':
            if (Next_Letter == 'N')
            {
                Phonize('N');
                w_idx += 2;
            }
            break;

            /*
             * WH becomes H, WR becomes R W if followed by a vowel
             */
        case 'W':
            if (Next_Letter == 'H' ||
                Next_Letter == 'R')
            {
                Phonize(Next_Letter);
                w_idx += 2;
            }
            else if (isvowel(Next_Letter))
            {
                Phonize('W');
                w_idx += 2;
            }
            /* else ignore */
            break;
            /* X becomes S */
        case 'X':
            Phonize('S');
            w_idx++;
            break;
            /* Vowels are kept */

            /*
             * We did A already case 'A': case 'a':
             */
        case 'E':
        case 'I':
        case 'O':
        case 'U':
            Phonize(Curr_Letter);
            w_idx++;
            break;
        default:
            /* do nothing */
            break;
    }



    /* On to the metaphoning */
    for (; Curr_Letter != '\0' &&
         (max_phonemes == 0 || Phone_Len < max_phonemes);
         w_idx++)
    {
        /*
         * How many letters to skip because an earlier encoding handled
         * multiple letters
         */
        unsigned short int skip_letter = 0;


        /*
         * THOUGHT:  It would be nice if, rather than having things like...
         * well, SCI.  For SCI you encode the S, then have to remember to skip
         * the C.  So the phonome SCI invades both S and C.  It would be
         * better, IMHO, to skip the C from the S part of the encoding. Hell,
         * I'm trying it.
         */

        /* Ignore non-alphas */
        if (!isalpha((unsigned char) (Curr_Letter)))
            continue;

        /* Drop duplicates, except CC */
        if (Curr_Letter == Prev_Letter &&
            Curr_Letter != 'C')
            continue;

        switch (Curr_Letter)
        {
                /* B -> B unless in MB */
            case 'B':
                if (Prev_Letter != 'M')
                    Phonize('B');
                break;

                /*
                 * 'sh' if -CIA- or -CH, but not SCH, except SCHW. (SCHW is
                 * handled in S) S if -CI-, -CE- or -CY- dropped if -SCI-,
                 * SCE-, -SCY- (handed in S) else K
                 */
            case 'C':
                if (MAKESOFT(Next_Letter))
                {               /* C[IEY] */
                    if (After_Next_Letter == 'A' &&
                        Next_Letter == 'I')
                    {           /* CIA */
                        Phonize(SH);
                    }
                    /* SC[IEY] */
                    else if (Prev_Letter == 'S')
                    {
                        /* Dropped */
                    }
                    else
                        Phonize('S');
                }
                else if (Next_Letter == 'H')
                {
#ifndef USE_TRADITIONAL_METAPHONE
                    if (After_Next_Letter == 'R' ||
                        Prev_Letter == 'S')
                    {           /* Christ, School */
                        Phonize('K');
                    }
                    else
                        Phonize(SH);
#else
                    Phonize(SH);
#endif
                    skip_letter++;
                }
                else
                    Phonize('K');
                break;

                /*
                 * J if in -DGE-, -DGI- or -DGY- else T
                 */
            case 'D':
                if (Next_Letter == 'G' &&
                    MAKESOFT(After_Next_Letter))
                {
                    Phonize('J');
                    skip_letter++;
                }
                else
                    Phonize('T');
                break;

                /*
                 * F if in -GH and not B--GH, D--GH, -H--GH, -H---GH else
                 * dropped if -GNED, -GN, else dropped if -DGE-, -DGI- or
                 * -DGY- (handled in D) else J if in -GE-, -GI, -GY and not GG
                 * else K
                 */
            case 'G':
                if (Next_Letter == 'H')
                {
                    if (!(NOGHTOF(Look_Back_Letter(3)) ||
                          Look_Back_Letter(4) == 'H'))
                    {
                        Phonize('F');
                        skip_letter++;
                    }
                    else
                    {
                        /* silent */
                    }
                }
                else if (Next_Letter == 'N')
                {
                    if (Isbreak(After_Next_Letter) ||
                        (After_Next_Letter == 'E' &&
                         Look_Ahead_Letter(3) == 'D'))
                    {
                        /* dropped */
                    }
                    else
                        Phonize('K');
                }
                else if (MAKESOFT(Next_Letter) &&
                         Prev_Letter != 'G')
                    Phonize('J');
                else
                    Phonize('K');
                break;
                /* H if before a vowel and not after C,G,P,S,T */
            case 'H':
                if (isvowel(Next_Letter) &&
                    !AFFECTH(Prev_Letter))
                    Phonize('H');
                break;

                /*
                 * dropped if after C else K
                 */
            case 'K':
                if (Prev_Letter != 'C')
                    Phonize('K');
                break;

                /*
                 * F if before H else P
                 */
            case 'P':
                if (Next_Letter == 'H')
                    Phonize('F');
                else
                    Phonize('P');
                break;

                /*
                 * K
                 */
            case 'Q':
                Phonize('K');
                break;

                /*
                 * 'sh' in -SH-, -SIO- or -SIA- or -SCHW- else S
                 */
            case 'S':
                if (Next_Letter == 'I' &&
                    (After_Next_Letter == 'O' ||
                     After_Next_Letter == 'A'))
                    Phonize(SH);
                else if (Next_Letter == 'H')
                {
                    Phonize(SH);
                    skip_letter++;
                }
#ifndef USE_TRADITIONAL_METAPHONE
                else if (Next_Letter == 'C' &&
                         Look_Ahead_Letter(2) == 'H' &&
                         Look_Ahead_Letter(3) == 'W')
                {
                    Phonize(SH);
                    skip_letter += 2;
                }
#endif
                else
                    Phonize('S');
                break;

                /*
                 * 'sh' in -TIA- or -TIO- else 'th' before H else T
                 */
            case 'T':
                if (Next_Letter == 'I' &&
                    (After_Next_Letter == 'O' ||
                     After_Next_Letter == 'A'))
                    Phonize(SH);
                else if (Next_Letter == 'H')
                {
                    Phonize(TH);
                    skip_letter++;
                }
                else
                    Phonize('T');
                break;
                /* F */
            case 'V':
                Phonize('F');
                break;
                /* W before a vowel, else dropped */
            case 'W':
                if (isvowel(Next_Letter))
                    Phonize('W');
                break;
                /* KS */
            case 'X':
                Phonize('K');
                if (max_phonemes == 0 || Phone_Len < max_phonemes)
                    Phonize('S');
                break;
                /* Y if followed by a vowel */
            case 'Y':
                if (isvowel(Next_Letter))
                    Phonize('Y');
                break;
                /* S */
            case 'Z':
                Phonize('S');
                break;
                /* No transformation */
            case 'F':
            case 'J':
            case 'L':
            case 'M':
            case 'N':
            case 'R':
                Phonize(Curr_Letter);
                break;
            default:
                /* nothing */
                break;
        }                       /* END SWITCH */

        w_idx += skip_letter;
    }                           /* END FOR */

    End_Phoned_Word;

    return (META_SUCCESS);
}   /* END metaphone */

static void _soundex ( const char *  instr,
char *  outstr 
) [static]

Definition at line 728 of file fuzzystrmatch.c.

References AssertArg, soundex_code(), and SOUNDEX_LEN.

Referenced by difference(), and soundex().

{
    int         count;

    AssertArg(instr);
    AssertArg(outstr);

    outstr[SOUNDEX_LEN] = '\0';

    /* Skip leading non-alphabetic characters */
    while (!isalpha((unsigned char) instr[0]) && instr[0])
        ++instr;

    /* No string left */
    if (!instr[0])
    {
        outstr[0] = (char) 0;
        return;
    }

    /* Take the first letter as is */
    *outstr++ = (char) toupper((unsigned char) *instr++);

    count = 1;
    while (*instr && count < SOUNDEX_LEN)
    {
        if (isalpha((unsigned char) *instr) &&
            soundex_code(*instr) != soundex_code(*(instr - 1)))
        {
            *outstr = soundex_code(instr[0]);
            if (*outstr != '0')
            {
                ++outstr;
                ++count;
            }
        }
        ++instr;
    }

    /* Fill with 0's */
    while (count < SOUNDEX_LEN)
    {
        *outstr = '0';
        ++outstr;
        ++count;
    }
}

Datum difference ( PG_FUNCTION_ARGS   ) 

Definition at line 779 of file fuzzystrmatch.c.

References _soundex(), i, PG_GETARG_TEXT_P, PG_RETURN_INT32, SOUNDEX_LEN, and text_to_cstring().

Referenced by checkcondition_str().

{
    char        sndx1[SOUNDEX_LEN + 1],
                sndx2[SOUNDEX_LEN + 1];
    int         i,
                result;

    _soundex(text_to_cstring(PG_GETARG_TEXT_P(0)), sndx1);
    _soundex(text_to_cstring(PG_GETARG_TEXT_P(1)), sndx2);

    result = 0;
    for (i = 0; i < SOUNDEX_LEN; i++)
    {
        if (sndx1[i] == sndx2[i])
            result++;
    }

    PG_RETURN_INT32(result);
}

static int getcode ( char  c  )  [static]

Definition at line 143 of file fuzzystrmatch.c.

References _codes.

{
    if (isalpha((unsigned char) c))
    {
        c = toupper((unsigned char) c);
        /* Defend against non-ASCII letters */
        if (c >= 'A' && c <= 'Z')
            return _codes[c - 'A'];
    }
    return 0;
}

Datum levenshtein ( PG_FUNCTION_ARGS   ) 

Definition at line 202 of file fuzzystrmatch.c.

References levenshtein_internal(), PG_GETARG_TEXT_PP, and PG_RETURN_INT32.

{
    text       *src = PG_GETARG_TEXT_PP(0);
    text       *dst = PG_GETARG_TEXT_PP(1);

    PG_RETURN_INT32(levenshtein_internal(src, dst, 1, 1, 1));
}

Datum levenshtein_less_equal ( PG_FUNCTION_ARGS   ) 

Definition at line 228 of file fuzzystrmatch.c.

References PG_GETARG_INT32, PG_GETARG_TEXT_PP, and PG_RETURN_INT32.

{
    text       *src = PG_GETARG_TEXT_PP(0);
    text       *dst = PG_GETARG_TEXT_PP(1);
    int         max_d = PG_GETARG_INT32(2);

    PG_RETURN_INT32(levenshtein_less_equal_internal(src, dst, 1, 1, 1, max_d));
}

Datum levenshtein_less_equal_with_costs ( PG_FUNCTION_ARGS   ) 

Definition at line 213 of file fuzzystrmatch.c.

References PG_GETARG_INT32, PG_GETARG_TEXT_PP, and PG_RETURN_INT32.

{
    text       *src = PG_GETARG_TEXT_PP(0);
    text       *dst = PG_GETARG_TEXT_PP(1);
    int         ins_c = PG_GETARG_INT32(2);
    int         del_c = PG_GETARG_INT32(3);
    int         sub_c = PG_GETARG_INT32(4);
    int         max_d = PG_GETARG_INT32(5);

    PG_RETURN_INT32(levenshtein_less_equal_internal(src, dst, ins_c, del_c, sub_c, max_d));
}

Datum levenshtein_with_costs ( PG_FUNCTION_ARGS   ) 

Definition at line 188 of file fuzzystrmatch.c.

References levenshtein_internal(), PG_GETARG_INT32, PG_GETARG_TEXT_PP, and PG_RETURN_INT32.

{
    text       *src = PG_GETARG_TEXT_PP(0);
    text       *dst = PG_GETARG_TEXT_PP(1);
    int         ins_c = PG_GETARG_INT32(2);
    int         del_c = PG_GETARG_INT32(3);
    int         sub_c = PG_GETARG_INT32(4);

    PG_RETURN_INT32(levenshtein_internal(src, dst, ins_c, del_c, sub_c));
}

static char Lookahead ( char *  word,
int  how_far 
) [static]

Definition at line 321 of file fuzzystrmatch.c.

{
    char        letter_ahead = '\0';    /* null by default */
    int         idx;

    for (idx = 0; word[idx] != '\0' && idx < how_far; idx++);
    /* Edge forward in the string... */

    letter_ahead = word[idx];   /* idx will be either == to how_far or at the
                                 * end of the string */
    return letter_ahead;
}

Datum metaphone ( PG_FUNCTION_ARGS   ) 

Definition at line 245 of file fuzzystrmatch.c.

References _metaphone(), cstring_to_text(), elog, ereport, errcode(), errmsg(), ERROR, MAX_METAPHONE_STRLEN, META_SUCCESS, PG_GETARG_DATUM, PG_GETARG_INT32, PG_RETURN_NULL, PG_RETURN_TEXT_P, and TextDatumGetCString.

{
    char       *str_i = TextDatumGetCString(PG_GETARG_DATUM(0));
    size_t      str_i_len = strlen(str_i);
    int         reqlen;
    char       *metaph;
    int         retval;

    /* return an empty string if we receive one */
    if (!(str_i_len > 0))
        PG_RETURN_TEXT_P(cstring_to_text(""));

    if (str_i_len > MAX_METAPHONE_STRLEN)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("argument exceeds the maximum length of %d bytes",
                        MAX_METAPHONE_STRLEN)));

    if (!(str_i_len > 0))
        ereport(ERROR,
                (errcode(ERRCODE_ZERO_LENGTH_CHARACTER_STRING),
                 errmsg("argument is empty string")));

    reqlen = PG_GETARG_INT32(1);
    if (reqlen > MAX_METAPHONE_STRLEN)
        ereport(ERROR,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("output exceeds the maximum length of %d bytes",
                        MAX_METAPHONE_STRLEN)));

    if (!(reqlen > 0))
        ereport(ERROR,
                (errcode(ERRCODE_ZERO_LENGTH_CHARACTER_STRING),
                 errmsg("output cannot be empty string")));


    retval = _metaphone(str_i, reqlen, &metaph);
    if (retval == META_SUCCESS)
        PG_RETURN_TEXT_P(cstring_to_text(metaph));
    else
    {
        /* internal error */
        elog(ERROR, "metaphone: failure");
        /* keep the compiler quiet */
        PG_RETURN_NULL();
    }
}

PG_FUNCTION_INFO_V1 ( difference   ) 
PG_FUNCTION_INFO_V1 ( levenshtein_less_equal_with_costs   ) 
PG_FUNCTION_INFO_V1 ( soundex   ) 
PG_FUNCTION_INFO_V1 ( metaphone   ) 
PG_FUNCTION_INFO_V1 ( levenshtein_less_equal   ) 
PG_FUNCTION_INFO_V1 ( levenshtein_with_costs   ) 
PG_FUNCTION_INFO_V1 ( levenshtein   ) 
static bool rest_of_char_same ( const char *  s1,
const char *  s2,
int  len 
) [inline, static]

Definition at line 171 of file fuzzystrmatch.c.

Referenced by levenshtein_internal().

{
    while (len > 0)
    {
        len--;
        if (s1[len] != s2[len])
            return false;
    }
    return true;
}

Datum soundex ( PG_FUNCTION_ARGS   ) 

Definition at line 715 of file fuzzystrmatch.c.

References _soundex(), arg, cstring_to_text(), PG_GETARG_TEXT_P, PG_RETURN_TEXT_P, SOUNDEX_LEN, and text_to_cstring().

{
    char        outstr[SOUNDEX_LEN + 1];
    char       *arg;

    arg = text_to_cstring(PG_GETARG_TEXT_P(0));

    _soundex(arg, outstr);

    PG_RETURN_TEXT_P(cstring_to_text(outstr));
}

static char soundex_code ( char  letter  )  [static]

Definition at line 71 of file fuzzystrmatch.c.

References soundex_table.

Referenced by _soundex().

{
    letter = toupper((unsigned char) letter);
    /* Defend against non-ASCII letters */
    if (letter >= 'A' && letter <= 'Z')
        return soundex_table[letter - 'A'];
    return letter;
}


Variable Documentation

const char _codes[26] [static]
Initial value:
 {
    1, 16, 4, 16, 9, 2, 4, 16, 9, 2, 0, 2, 2, 2, 1, 4, 0, 2, 4, 4, 1, 0, 0, 0, 8, 0

}

Definition at line 137 of file fuzzystrmatch.c.

Referenced by getcode().

Definition at line 46 of file fuzzystrmatch.c.

const char* soundex_table = "01230120022455012623010202" [static]

Definition at line 68 of file fuzzystrmatch.c.

Referenced by soundex_code().