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Overview
Comment: | Improve the performance of the fts5 porter tokenizer implementation. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | fts5 |
Files: | files | file ages | folders |
SHA1: |
96ea600440de05ee663e71c3f0d0de2c |
User & Date: | dan 2015-01-17 17:48:10.103 |
Context
2015-01-17
| ||
20:01 | Ensure an up to date copy of the fts5 configuration has been loaded into memory before attempting to modify the same configuration. (check-in: f30afd209a user: dan tags: fts5) | |
17:48 | Improve the performance of the fts5 porter tokenizer implementation. (check-in: 96ea600440 user: dan tags: fts5) | |
2015-01-13
| ||
17:25 | Fix prefix indexes so that they work in characters, not bytes. (check-in: af8d43a4a0 user: dan tags: fts5) | |
Changes
Changes to ext/fts5/fts5_tokenize.c.
︙ | ︙ | |||
439 440 441 442 443 444 445 446 447 448 449 450 451 452 | ** largest possible utf-8 character. */ if( (zOut-aFold)+6>nFold ){ aFold = sqlite3_malloc(nFold*2); if( aFold==0 ){ rc = SQLITE_NOMEM; goto tokenize_done; } memcpy(aFold, p->aFold, nFold); sqlite3_free(p->aFold); p->aFold = aFold; p->nFold = nFold = nFold*2; } if( *zCsr & 0x80 ){ | > | 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 | ** largest possible utf-8 character. */ if( (zOut-aFold)+6>nFold ){ aFold = sqlite3_malloc(nFold*2); if( aFold==0 ){ rc = SQLITE_NOMEM; goto tokenize_done; } zOut = &aFold[zOut - p->aFold]; memcpy(aFold, p->aFold, nFold); sqlite3_free(p->aFold); p->aFold = aFold; p->nFold = nFold = nFold*2; } if( *zCsr & 0x80 ){ |
︙ | ︙ | |||
524 525 526 527 528 529 530 | int rc = SQLITE_OK; PorterTokenizer *pRet; void *pUserdata = 0; pRet = (PorterTokenizer*)sqlite3_malloc(sizeof(PorterTokenizer)); if( pRet ){ memset(pRet, 0, sizeof(PorterTokenizer)); | | | 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 | int rc = SQLITE_OK; PorterTokenizer *pRet; void *pUserdata = 0; pRet = (PorterTokenizer*)sqlite3_malloc(sizeof(PorterTokenizer)); if( pRet ){ memset(pRet, 0, sizeof(PorterTokenizer)); rc = pApi->xFindTokenizer(pApi, "unicode61", &pUserdata, &pRet->tokenizer); }else{ rc = SQLITE_NOMEM; } if( rc==SQLITE_OK ){ rc = pRet->tokenizer.xCreate(pUserdata, 0, 0, &pRet->pTokenizer); } |
︙ | ︙ | |||
662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 | if( fts5PorterIsVowel(zStem[i], i>0) ){ return 1; } } return 0; } static int fts5PorterCb( void *pCtx, const char *pToken, int nToken, int iStart, int iEnd ){ PorterContext *p = (PorterContext*)pCtx; | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < | | < | | > > > | > | | | | 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 | if( fts5PorterIsVowel(zStem[i], i>0) ){ return 1; } } return 0; } /************************************************************************** *************************************************************************** ** GENERATED CODE STARTS HERE (mkportersteps.tcl) */ static int fts5PorterStep4(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ case 'a': if( nBuf>2 && 0==memcmp("al", &aBuf[nBuf-2], 2) ){ if( fts5Porter_MGt1(aBuf, nBuf-2) ){ *pnBuf = nBuf - 2; } } break; case 'c': if( nBuf>4 && 0==memcmp("ance", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt1(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } }else if( nBuf>4 && 0==memcmp("ence", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt1(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } } break; case 'e': if( nBuf>2 && 0==memcmp("er", &aBuf[nBuf-2], 2) ){ if( fts5Porter_MGt1(aBuf, nBuf-2) ){ *pnBuf = nBuf - 2; } } break; case 'i': if( nBuf>2 && 0==memcmp("ic", &aBuf[nBuf-2], 2) ){ if( fts5Porter_MGt1(aBuf, nBuf-2) ){ *pnBuf = nBuf - 2; } } break; case 'l': if( nBuf>4 && 0==memcmp("able", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt1(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } }else if( nBuf>4 && 0==memcmp("ible", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt1(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } } break; case 'n': if( nBuf>3 && 0==memcmp("ant", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } }else if( nBuf>5 && 0==memcmp("ement", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt1(aBuf, nBuf-5) ){ *pnBuf = nBuf - 5; } }else if( nBuf>4 && 0==memcmp("ment", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt1(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } }else if( nBuf>3 && 0==memcmp("ent", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 'o': if( nBuf>3 && 0==memcmp("ion", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1_and_S_or_T(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } }else if( nBuf>2 && 0==memcmp("ou", &aBuf[nBuf-2], 2) ){ if( fts5Porter_MGt1(aBuf, nBuf-2) ){ *pnBuf = nBuf - 2; } } break; case 's': if( nBuf>3 && 0==memcmp("ism", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 't': if( nBuf>3 && 0==memcmp("ate", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } }else if( nBuf>3 && 0==memcmp("iti", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 'u': if( nBuf>3 && 0==memcmp("ous", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 'v': if( nBuf>3 && 0==memcmp("ive", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 'z': if( nBuf>3 && 0==memcmp("ize", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt1(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; } return ret; } static int fts5PorterStep1B2(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ case 'a': if( nBuf>2 && 0==memcmp("at", &aBuf[nBuf-2], 2) ){ memcpy(&aBuf[nBuf-2], "ate", 3); *pnBuf = nBuf - 2 + 3; ret = 1; } break; case 'b': if( nBuf>2 && 0==memcmp("bl", &aBuf[nBuf-2], 2) ){ memcpy(&aBuf[nBuf-2], "ble", 3); *pnBuf = nBuf - 2 + 3; ret = 1; } break; case 'i': if( nBuf>2 && 0==memcmp("iz", &aBuf[nBuf-2], 2) ){ memcpy(&aBuf[nBuf-2], "ize", 3); *pnBuf = nBuf - 2 + 3; ret = 1; } break; } return ret; } static int fts5PorterStep2(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ case 'a': if( nBuf>7 && 0==memcmp("ational", &aBuf[nBuf-7], 7) ){ if( fts5Porter_MGt0(aBuf, nBuf-7) ){ memcpy(&aBuf[nBuf-7], "ate", 3); *pnBuf = nBuf - 7 + 3; } }else if( nBuf>6 && 0==memcmp("tional", &aBuf[nBuf-6], 6) ){ if( fts5Porter_MGt0(aBuf, nBuf-6) ){ memcpy(&aBuf[nBuf-6], "tion", 4); *pnBuf = nBuf - 6 + 4; } } break; case 'c': if( nBuf>4 && 0==memcmp("enci", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "ence", 4); *pnBuf = nBuf - 4 + 4; } }else if( nBuf>4 && 0==memcmp("anci", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "ance", 4); *pnBuf = nBuf - 4 + 4; } } break; case 'e': if( nBuf>4 && 0==memcmp("izer", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "ize", 3); *pnBuf = nBuf - 4 + 3; } } break; case 'g': if( nBuf>4 && 0==memcmp("logi", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "log", 3); *pnBuf = nBuf - 4 + 3; } } break; case 'l': if( nBuf>3 && 0==memcmp("bli", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt0(aBuf, nBuf-3) ){ memcpy(&aBuf[nBuf-3], "ble", 3); *pnBuf = nBuf - 3 + 3; } }else if( nBuf>4 && 0==memcmp("alli", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "al", 2); *pnBuf = nBuf - 4 + 2; } }else if( nBuf>5 && 0==memcmp("entli", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ent", 3); *pnBuf = nBuf - 5 + 3; } }else if( nBuf>3 && 0==memcmp("eli", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt0(aBuf, nBuf-3) ){ memcpy(&aBuf[nBuf-3], "e", 1); *pnBuf = nBuf - 3 + 1; } }else if( nBuf>5 && 0==memcmp("ousli", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ous", 3); *pnBuf = nBuf - 5 + 3; } } break; case 'o': if( nBuf>7 && 0==memcmp("ization", &aBuf[nBuf-7], 7) ){ if( fts5Porter_MGt0(aBuf, nBuf-7) ){ memcpy(&aBuf[nBuf-7], "ize", 3); *pnBuf = nBuf - 7 + 3; } }else if( nBuf>5 && 0==memcmp("ation", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ate", 3); *pnBuf = nBuf - 5 + 3; } }else if( nBuf>4 && 0==memcmp("ator", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "ate", 3); *pnBuf = nBuf - 4 + 3; } } break; case 's': if( nBuf>5 && 0==memcmp("alism", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "al", 2); *pnBuf = nBuf - 5 + 2; } }else if( nBuf>7 && 0==memcmp("iveness", &aBuf[nBuf-7], 7) ){ if( fts5Porter_MGt0(aBuf, nBuf-7) ){ memcpy(&aBuf[nBuf-7], "ive", 3); *pnBuf = nBuf - 7 + 3; } }else if( nBuf>7 && 0==memcmp("fulness", &aBuf[nBuf-7], 7) ){ if( fts5Porter_MGt0(aBuf, nBuf-7) ){ memcpy(&aBuf[nBuf-7], "ful", 3); *pnBuf = nBuf - 7 + 3; } }else if( nBuf>7 && 0==memcmp("ousness", &aBuf[nBuf-7], 7) ){ if( fts5Porter_MGt0(aBuf, nBuf-7) ){ memcpy(&aBuf[nBuf-7], "ous", 3); *pnBuf = nBuf - 7 + 3; } } break; case 't': if( nBuf>5 && 0==memcmp("aliti", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "al", 2); *pnBuf = nBuf - 5 + 2; } }else if( nBuf>5 && 0==memcmp("iviti", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ive", 3); *pnBuf = nBuf - 5 + 3; } }else if( nBuf>6 && 0==memcmp("biliti", &aBuf[nBuf-6], 6) ){ if( fts5Porter_MGt0(aBuf, nBuf-6) ){ memcpy(&aBuf[nBuf-6], "ble", 3); *pnBuf = nBuf - 6 + 3; } } break; } return ret; } static int fts5PorterStep3(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ case 'a': if( nBuf>4 && 0==memcmp("ical", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ memcpy(&aBuf[nBuf-4], "ic", 2); *pnBuf = nBuf - 4 + 2; } } break; case 's': if( nBuf>4 && 0==memcmp("ness", &aBuf[nBuf-4], 4) ){ if( fts5Porter_MGt0(aBuf, nBuf-4) ){ *pnBuf = nBuf - 4; } } break; case 't': if( nBuf>5 && 0==memcmp("icate", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ic", 2); *pnBuf = nBuf - 5 + 2; } }else if( nBuf>5 && 0==memcmp("iciti", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "ic", 2); *pnBuf = nBuf - 5 + 2; } } break; case 'u': if( nBuf>3 && 0==memcmp("ful", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt0(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; } } break; case 'v': if( nBuf>5 && 0==memcmp("ative", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ *pnBuf = nBuf - 5; } } break; case 'z': if( nBuf>5 && 0==memcmp("alize", &aBuf[nBuf-5], 5) ){ if( fts5Porter_MGt0(aBuf, nBuf-5) ){ memcpy(&aBuf[nBuf-5], "al", 2); *pnBuf = nBuf - 5 + 2; } } break; } return ret; } static int fts5PorterStep1B(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ case 'e': if( nBuf>3 && 0==memcmp("eed", &aBuf[nBuf-3], 3) ){ if( fts5Porter_MGt0(aBuf, nBuf-3) ){ memcpy(&aBuf[nBuf-3], "ee", 2); *pnBuf = nBuf - 3 + 2; } }else if( nBuf>2 && 0==memcmp("ed", &aBuf[nBuf-2], 2) ){ if( fts5Porter_Vowel(aBuf, nBuf-2) ){ *pnBuf = nBuf - 2; ret = 1; } } break; case 'n': if( nBuf>3 && 0==memcmp("ing", &aBuf[nBuf-3], 3) ){ if( fts5Porter_Vowel(aBuf, nBuf-3) ){ *pnBuf = nBuf - 3; ret = 1; } } break; } return ret; } /* ** GENERATED CODE ENDS HERE (mkportersteps.tcl) *************************************************************************** **************************************************************************/ static void fts5PorterStep1A(char *aBuf, int *pnBuf){ int nBuf = *pnBuf; if( aBuf[nBuf-1]=='s' ){ if( aBuf[nBuf-2]=='e' ){ if( (nBuf>4 && aBuf[nBuf-4]=='s' && aBuf[nBuf-3]=='s') || (nBuf>3 && aBuf[nBuf-3]=='i' ) ){ *pnBuf = nBuf-2; }else{ *pnBuf = nBuf-1; } } else if( aBuf[nBuf-2]!='s' ){ *pnBuf = nBuf-1; } } } static int fts5PorterCb( void *pCtx, const char *pToken, int nToken, int iStart, int iEnd ){ PorterContext *p = (PorterContext*)pCtx; char *aBuf; int nBuf; if( nToken>FTS5_PORTER_MAX_TOKEN || nToken<3 ) goto pass_through; aBuf = p->aBuf; nBuf = nToken; memcpy(aBuf, pToken, nBuf); /* Step 1. */ fts5PorterStep1A(aBuf, &nBuf); if( fts5PorterStep1B(aBuf, &nBuf) ){ if( fts5PorterStep1B2(aBuf, &nBuf)==0 ){ char c = aBuf[nBuf-1]; if( fts5PorterIsVowel(c, 0)==0 && c!='l' && c!='s' && c!='z' && c==aBuf[nBuf-2] ){ nBuf--; }else if( fts5Porter_MEq1(aBuf, nBuf) && fts5Porter_Ostar(aBuf, nBuf) ){ aBuf[nBuf++] = 'e'; } } } /* Step 1C. */ if( aBuf[nBuf-1]=='y' && fts5Porter_Vowel(aBuf, nBuf-1) ){ aBuf[nBuf-1] = 'i'; } /* Steps 2 through 4. */ fts5PorterStep2(aBuf, &nBuf); fts5PorterStep3(aBuf, &nBuf); fts5PorterStep4(aBuf, &nBuf); /* Step 5a. */ if( nBuf>0 && aBuf[nBuf-1]=='e' ){ if( fts5Porter_MGt1(aBuf, nBuf-1) || (fts5Porter_MEq1(aBuf, nBuf-1) && !fts5Porter_Ostar(aBuf, nBuf-1)) ){ nBuf--; |
︙ | ︙ |
Added ext/fts5/mkportersteps.tcl.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | # # 2014 Jun 09 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #------------------------------------------------------------------------- # # This script generates the implementations of the following C functions, # which are part of the porter tokenizer implementation: # # static int fts5PorterStep1B(char *aBuf, int *pnBuf); # static int fts5PorterStep1B2(char *aBuf, int *pnBuf); # static int fts5PorterStep2(char *aBuf, int *pnBuf); # static int fts5PorterStep3(char *aBuf, int *pnBuf); # static int fts5PorterStep4(char *aBuf, int *pnBuf); # set O(Step1B2) { { at {} ate 1 } { bl {} ble 1 } { iz {} ize 1 } } set O(Step1B) { { "eed" fts5Porter_MGt0 "ee" 0 } { "ed" fts5Porter_Vowel "" 1 } { "ing" fts5Porter_Vowel "" 1 } } set O(Step2) { { "ational" fts5Porter_MGt0 "ate" } { "tional" fts5Porter_MGt0 "tion" } { "enci" fts5Porter_MGt0 "ence" } { "anci" fts5Porter_MGt0 "ance" } { "izer" fts5Porter_MGt0 "ize" } { "logi" fts5Porter_MGt0 "log" } { "bli" fts5Porter_MGt0 "ble" } { "alli" fts5Porter_MGt0 "al" } { "entli" fts5Porter_MGt0 "ent" } { "eli" fts5Porter_MGt0 "e" } { "ousli" fts5Porter_MGt0 "ous" } { "ization" fts5Porter_MGt0 "ize" } { "ation" fts5Porter_MGt0 "ate" } { "ator" fts5Porter_MGt0 "ate" } { "alism" fts5Porter_MGt0 "al" } { "iveness" fts5Porter_MGt0 "ive" } { "fulness" fts5Porter_MGt0 "ful" } { "ousness" fts5Porter_MGt0 "ous" } { "aliti" fts5Porter_MGt0 "al" } { "iviti" fts5Porter_MGt0 "ive" } { "biliti" fts5Porter_MGt0 "ble" } } set O(Step3) { { "icate" fts5Porter_MGt0 "ic" } { "ative" fts5Porter_MGt0 "" } { "alize" fts5Porter_MGt0 "al" } { "iciti" fts5Porter_MGt0 "ic" } { "ical" fts5Porter_MGt0 "ic" } { "ful" fts5Porter_MGt0 "" } { "ness" fts5Porter_MGt0 "" } } set O(Step4) { { "al" fts5Porter_MGt1 "" } { "ance" fts5Porter_MGt1 "" } { "ence" fts5Porter_MGt1 "" } { "er" fts5Porter_MGt1 "" } { "ic" fts5Porter_MGt1 "" } { "able" fts5Porter_MGt1 "" } { "ible" fts5Porter_MGt1 "" } { "ant" fts5Porter_MGt1 "" } { "ement" fts5Porter_MGt1 "" } { "ment" fts5Porter_MGt1 "" } { "ent" fts5Porter_MGt1 "" } { "ion" fts5Porter_MGt1_and_S_or_T "" } { "ou" fts5Porter_MGt1 "" } { "ism" fts5Porter_MGt1 "" } { "ate" fts5Porter_MGt1 "" } { "iti" fts5Porter_MGt1 "" } { "ous" fts5Porter_MGt1 "" } { "ive" fts5Porter_MGt1 "" } { "ize" fts5Porter_MGt1 "" } } proc sort_cb {lhs rhs} { set L [string range [lindex $lhs 0] end-1 end-1] set R [string range [lindex $rhs 0] end-1 end-1] string compare $L $R } proc create_step_function {name data} { set T(function) { static int fts5Porter${name}(char *aBuf, int *pnBuf){ int ret = 0; int nBuf = *pnBuf; switch( aBuf[nBuf-2] ){ ${switchbody} } return ret; } } set T(case) { case '${k}': ${ifstmts} break; } set T(if_0_0_0) { if( ${match} ){ *pnBuf = nBuf - $n; } } set T(if_1_0_0) { if( ${match} ){ if( ${cond} ){ *pnBuf = nBuf - $n; } } } set T(if_0_1_0) { if( ${match} ){ ${memcpy} *pnBuf = nBuf - $n + $nRep; } } set T(if_1_1_0) { if( ${match} ){ if( ${cond} ){ ${memcpy} *pnBuf = nBuf - $n + $nRep; } } } set T(if_1_0_1) { if( ${match} ){ if( ${cond} ){ *pnBuf = nBuf - $n; ret = 1; } } } set T(if_0_1_1) { if( ${match} ){ ${memcpy} *pnBuf = nBuf - $n + $nRep; ret = 1; } } set T(if_1_1_1) { if( ${match} ){ if( ${cond} ){ ${memcpy} *pnBuf = nBuf - $n + $nRep; ret = 1; } } } set switchbody "" foreach I $data { set k [string range [lindex $I 0] end-1 end-1] lappend aCase($k) $I } foreach k [lsort [array names aCase]] { set ifstmts "" foreach I $aCase($k) { set zSuffix [lindex $I 0] ;# Suffix text for this rule set zRep [lindex $I 2] ;# Replacement text for rule set xCond [lindex $I 1] ;# Condition callback (or "") set n [string length $zSuffix] set nRep [string length $zRep] set match "nBuf>$n && 0==memcmp(\"$zSuffix\", &aBuf\[nBuf-$n\], $n)" set memcpy "memcpy(&aBuf\[nBuf-$n\], \"$zRep\", $nRep);" set cond "${xCond}(aBuf, nBuf-$n)" set bMemcpy [expr {$nRep>0}] set bCond [expr {$xCond!=""}] set bRet [expr {[llength $I]>3 && [lindex $I 3]}] set t $T(if_${bCond}_${bMemcpy}_${bRet}) lappend ifstmts [string trim [subst -nocommands $t]] } set ifstmts [join $ifstmts "else "] append switchbody [subst -nocommands $T(case)] } puts [subst -nocommands $T(function)] } puts [string trim { /************************************************************************** *************************************************************************** ** GENERATED CODE STARTS HERE (mkportersteps.tcl) */ }] foreach step [array names O] { create_step_function $step $O($step) } puts [string trim { /* ** GENERATED CODE ENDS HERE (mkportersteps.tcl) *************************************************************************** **************************************************************************/ }] |
Added ext/fts5/tool/loadfts5.tcl.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | proc loadfile {f} { set fd [open $f] set data [read $fd] close $fd return $data } set ::nRow 0 proc load_hierachy {dir} { foreach f [glob -nocomplain -dir $dir *] { if {$::O(limit) && $::nRow>=$::O(limit)} break if {[file isdir $f]} { load_hierachy $f } else { db eval { INSERT INTO t1 VALUES($f, loadfile($f)) } incr ::nRow } } } proc usage {} { puts stderr "Usage: $::argv0 ?SWITCHES? DATABASE PATH" puts stderr "" puts stderr "Switches are:" puts stderr " -fts4 (use fts4 instead of fts5)" exit 1 } set O(vtab) fts5 set O(tok) "" set O(limit) 0 if {[llength $argv]<2} usage for {set i 0} {$i < [llength $argv]-2} {incr i} { set arg [lindex $argv $i] switch -- [lindex $argv $i] { -fts4 { set O(vtab) fts4 } -fts5 { set O(vtab) fts5 } -porter { set O(tok) ", tokenize=porter" } -limit { incr i set O(limit) [lindex $argv $i] } default { usage } } } sqlite3 db [lindex $argv end-1] db func loadfile loadfile db transaction { db eval "CREATE VIRTUAL TABLE t1 USING $O(vtab) (path, content$O(tok))" load_hierachy [lindex $argv end] } |