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/* -*- Mode: C -*- |
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* $Basename: WAIT.xs $ |
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* $Revision: 1.3 $ |
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* Author : Ulrich Pfeifer |
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* Created On : Thu Aug 15 18:01:00 1996 |
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* Last Modified By: Ulrich Pfeifer |
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* Last Modified On: Wed Nov 5 17:01:30 1997 |
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* Language : C |
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* Update Count : 106 |
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* Status : Unknown, Use with caution! |
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* |
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* (C) Copyright 1997, Ulrich Pfeifer, all rights reserved. |
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* |
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*/ |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#include "soundex.h" |
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#include "stemmer.h" |
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#include "metaphone.h" |
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#include "levenstein.h" |
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|
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static unsigned char *lchars = |
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"abcdefghijklmnopqrstuvwxyzàáâãäåæçèéêëìíîïñòóôõöøùúûüýß"; |
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static unsigned char *uchars = |
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"ABCDEFGHIJKLMNOPQRSTUVWXYZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝß"; |
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static char *scodes = |
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"01230120022455012623010202000000 00000000500000 000002"; |
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static char *pcodes = |
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"01230720022455012683070808000000 00000000500000 000008"; |
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static unsigned char tou[256]; |
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static unsigned char tol[256]; |
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static unsigned char tos[256]; |
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static char scd[256]; |
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static char pcd[256]; |
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static unsigned char *nums = "0123456789"; |
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|
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void init_lcuc () |
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{ |
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short i; |
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short l = strlen(lchars); |
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|
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for(i=0;i<256;i++) { |
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tou[i] = (unsigned char)i; |
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tol[i] = (unsigned char)i; |
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tos[i] = (unsigned char)' '; |
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scd[i] = ' '; |
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pcd[i] = ' '; |
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} |
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for (i=0;i<l;i++) { |
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tou[lchars[i]] = uchars[i]; |
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tol[uchars[i]] = lchars[i]; |
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tos[uchars[i]] = uchars[i]; |
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tos[lchars[i]] = lchars[i]; |
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scd[uchars[i]] = scodes[i]; |
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scd[lchars[i]] = scodes[i]; |
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pcd[uchars[i]] = pcodes[i]; |
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pcd[lchars[i]] = pcodes[i]; |
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} |
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for (i=0;i<10;i++) { |
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tos[nums[i]] = nums[i]; |
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} |
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} |
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|
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unsigned char ToUpper(c) |
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unsigned char c; |
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{ |
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return (tou[c]); |
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} |
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|
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unsigned char ToLower(c) |
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unsigned char c; |
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{ |
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return (tol[c]); |
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} |
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|
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#define ToUpper(c) (tou[c]) |
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#define ToLower(c) (tol[c]) |
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#define SoundexLen 4 /* length of a soundex code */ |
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#define SoundexKey "Z000" /* default key for soundex code */ |
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|
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bool IsAlpha(c) |
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unsigned char c; |
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{ |
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return ((bool) scd[c] != ' '); |
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} |
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|
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bool IsVowel(c) |
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unsigned char c; |
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{ |
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return ((bool) scd[c] == '0'); |
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} |
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|
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static char SCode(c) |
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unsigned char c; |
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{ |
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return (scd[c]); |
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} |
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|
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#define IsAlpha(c) (scd[c] != ' ') |
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#define IsVowel(c) (scd[c] == '0') |
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#define SCode(c) (scd[c]) |
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|
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char PCode(c) |
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unsigned char c; |
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{ |
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return (pcd[c]); |
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} |
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|
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void SoundexCode (Name, Key) |
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unsigned char *Name; |
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unsigned char *Key; |
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{ |
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unsigned char LastLetter; |
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int Index; |
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|
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/* set default key */ |
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strcpy(Key, SoundexKey); |
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|
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/* keep first letter */ |
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Key[0] = *Name; |
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LastLetter = *Name; |
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Name++; |
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|
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/* scan rest of string */ |
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for (Index = 1; (Index < SoundexLen) && *Name; Name++) |
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{ |
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/* use only letters */ |
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if (IsAlpha(*Name)) |
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{ |
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/* ignore duplicate successive chars */ |
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if (LastLetter != *Name) |
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{ |
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/* new LastLetter */ |
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LastLetter = *Name; |
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|
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/* ignore letters with code 0 */ |
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if (!IsVowel(*Name) && (SCode(*Name) != 0)) |
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{ |
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Key[Index] = SCode(*Name); |
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Index++; |
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} |
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} |
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} |
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} |
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} |
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|
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static unsigned char * isolc (s, l) |
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unsigned char * s; |
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int l; |
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{ |
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int i; |
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for (i=0;i<l;i++) { |
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s[i] = tol[s[i]]; |
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} |
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return(s); |
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} |
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|
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static unsigned char * isouc (s, l) |
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unsigned char * s; |
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int l; |
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{ |
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int i; |
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|
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for (i=0;i<l;i++) { |
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s[i] = tou[s[i]]; |
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} |
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return(s); |
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} |
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|
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static unsigned char * isotr (s, l) |
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unsigned char * s; |
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int l; |
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{ |
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int i; |
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|
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for (i=0;i<l;i++) { |
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s[i] = tos[s[i]]; |
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} |
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return(s); |
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} |
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|
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MODULE = WAIT PACKAGE = WAIT::Filter |
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|
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PROTOTYPES: ENABLE |
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|
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BOOT: |
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init_lcuc (); |
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|
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|
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char * |
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isolc(word) |
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char * word |
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CODE: |
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{ |
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char *copy; |
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ST(0) = sv_mortalcopy(ST(0)); |
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copy = (char *)SvPV(ST(0),na); |
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(void) isolc(copy, (int)na); |
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} |
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|
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char * |
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isouc(word) |
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char * word |
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CODE: |
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{ |
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char *copy; |
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ST(0) = sv_mortalcopy(ST(0)); |
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copy = (char *)SvPV(ST(0),na); |
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(void) isouc(copy, (int)na); |
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} |
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|
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char * |
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isotr(word) |
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char * word |
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CODE: |
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{ |
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char *copy; |
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ST(0) = sv_mortalcopy(ST(0)); |
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copy = (char *)SvPV(ST(0),na); |
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(void) isotr(copy, (int)na); |
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} |
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|
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char * |
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disolc(word) |
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char * word |
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CODE: |
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{ |
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(void) isolc(word, (int)na); |
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} |
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|
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char * |
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disouc(word) |
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char * word |
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CODE: |
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{ |
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(void) isouc(word, (int)na); |
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} |
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|
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char * |
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disotr(word) |
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char * word |
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CODE: |
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{ |
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(void) isotr(word, (int)na); |
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} |
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|
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char * |
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Soundex(word) |
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char * word |
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CODE: |
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{ |
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char key[5]; |
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Soundex (word, key); |
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ST(0) = sv_newmortal(); |
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sv_setpv((SV *) ST(0), key); |
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} |
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|
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char * |
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Phonix (word) |
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char * word |
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CODE: |
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{ |
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char key[9]; |
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Phonix (word, key); |
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ST(0) = sv_newmortal(); |
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sv_setpv((SV *) ST(0), key); |
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} |
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|
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char * |
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Stem (word) |
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char * word |
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CODE: |
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{ |
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char copy[80]; |
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strncpy(copy, word, 79); |
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if (Stem(copy)) { |
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ST(0) = sv_newmortal(); |
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sv_setpv((SV *) ST(0), copy); |
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} |
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} |
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|
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char * |
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Metaphone (word) |
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char * word |
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CODE: |
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{ |
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char metaph[80]; |
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metaph[0] = '\0'; |
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phonetic(word,metaph,79); |
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ST(0) = sv_newmortal(); |
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sv_setpv((SV *) ST(0), metaph); |
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} |
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|
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void |
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split_pos(ipair) |
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SV * ipair; |
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PPCODE: |
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{ |
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AV * aipair = (AV *) SvRV(ipair); |
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char * word = (char *)SvPV(*av_fetch(aipair, 0, 0),na); |
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int offset = (av_len(aipair)?SvIV(*av_fetch(aipair, 1, 0)):0); |
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char * begin = word; |
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SV * pair[2]; |
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|
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pair[0] = newSV((STRLEN)20); |
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pair[1] = newSV((STRLEN)0); |
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|
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while (*word) { |
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char * start; |
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AV * apair; |
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SV * ref; |
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while (*word && isspace(*word)) word++; |
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if (!*word) break; |
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start = word; |
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while (*word && !isspace(*word)) word++; |
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EXTEND(sp, 1); |
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sv_setpvn(pair[0], start, (STRLEN)(word-start)); |
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sv_setiv(pair[1],offset + start - begin); |
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apair = av_make(2, pair); |
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ref = newRV((SV*) apair); |
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SvREFCNT_dec(apair); |
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PUSHs(sv_2mortal(ref)); |
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} |
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/* free pair */ |
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SvREFCNT_dec(pair[0]); |
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SvREFCNT_dec(pair[1]); |
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} |
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|
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MODULE = WAIT PACKAGE = WAIT::Table |
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int |
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max(left,right=0) |
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int left |
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int right |
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CODE: |
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{ |
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RETVAL = (left>right)?left:right; |
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ST(0) = sv_newmortal(); |
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sv_setiv(ST(0), (IV)RETVAL); |
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} |
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|
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|
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MODULE = WAIT PACKAGE = WAIT::Metric |
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|
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int |
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WLD(word,towards,mode=' ',limit=0) |
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char * word |
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char * towards |
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char mode |
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int limit |
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