X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=ccl%2Fccltoken.c;h=b0e1b81629833648d72523564d9f1f7060773375;hb=26d07328e36c41d39216d66d742d133cf7512995;hp=6994ced17ccf7703ff1a78bd3aab72bdc7a41001;hpb=88e45d920d4fedb9557e896cf9448f9ab9cfb422;p=yaz-moved-to-github.git diff --git a/ccl/ccltoken.c b/ccl/ccltoken.c index 6994ced..b0e1b81 100644 --- a/ccl/ccltoken.c +++ b/ccl/ccltoken.c @@ -45,7 +45,35 @@ * Europagate, 1995 * * $Log: ccltoken.c,v $ - * Revision 1.8 1997-09-29 08:56:38 adam + * Revision 1.16 2001-03-07 13:24:40 adam + * Member and_not in Z_Operator is kept for backwards compatibility. + * Added support for definition of CCL operators in field spec file. + * + * Revision 1.15 2000/05/01 09:36:50 adam + * Range operator only treated in ordered ranges so that minus (-) can be + * used for, say, the and-not operator. + * + * Revision 1.14 2000/03/14 09:06:11 adam + * Added POSIX threads support for frontend server. + * + * Revision 1.13 2000/02/08 10:39:53 adam + * Added a few functions to set name of operands, etc. + * + * Revision 1.12 2000/01/31 13:15:21 adam + * Removed uses of assert(3). Cleanup of ODR. CCL parser update so + * that some characters are not surrounded by spaces in resulting term. + * ILL-code updates. + * + * Revision 1.11 1999/11/30 13:47:11 adam + * Improved installation. Moved header files to include/yaz. + * + * Revision 1.10 1998/07/07 15:49:41 adam + * Added braces to avoid warning. + * + * Revision 1.9 1998/02/11 11:53:33 adam + * Changed code so that it compiles as C++. + * + * Revision 1.8 1997/09/29 08:56:38 adam * Changed CCL parser to be thread safe. New type, CCL_parser, declared * and a create/destructers ccl_parser_create/ccl_parser/destory has * been added. @@ -95,12 +123,10 @@ * */ -#include #include #include -#include -#include +#include /* * token_cmp: Compare token with keyword(s) @@ -113,12 +139,19 @@ static int token_cmp (CCL_parser cclp, const char *kw, struct ccl_token *token) { const char *cp1 = kw; const char *cp2; + const char *aliases; + int case_sensitive = cclp->ccl_case_sensitive; + + aliases = ccl_qual_search_special(cclp->bibset, "case"); + if (aliases) + case_sensitive = atoi(aliases); if (!kw) return 0; while ((cp2 = strchr (cp1, ' '))) { if (token->len == (size_t) (cp2-cp1)) - if (cclp->ccl_case_sensitive) + { + if (case_sensitive) { if (!memcmp (cp1, token->name, token->len)) return 1; @@ -128,9 +161,10 @@ static int token_cmp (CCL_parser cclp, const char *kw, struct ccl_token *token) if (!ccl_memicmp (cp1, token->name, token->len)) return 1; } + } cp1 = cp2+1; } - if (cclp->ccl_case_sensitive) + if (case_sensitive) return token->len == strlen(cp1) && !memcmp (cp1, token->name, token->len); return token->len == strlen(cp1) && @@ -155,14 +189,14 @@ struct ccl_token *ccl_token_simple (const char *command) } if (!first) { - first = last = malloc (sizeof (*first)); - assert (first); + first = last = (struct ccl_token *)malloc (sizeof (*first)); + ccl_assert (first); last->prev = NULL; } else { - last->next = malloc (sizeof(*first)); - assert (last->next); + last->next = (struct ccl_token *)malloc (sizeof(*first)); + ccl_assert (last->next); last->next->prev = last; last = last->next; } @@ -205,6 +239,7 @@ struct ccl_token *ccl_token_simple (const char *command) */ struct ccl_token *ccl_parser_tokenize (CCL_parser cclp, const char *command) { + const char *aliases; const char *cp = command; struct ccl_token *first = NULL; struct ccl_token *last = NULL; @@ -218,14 +253,14 @@ struct ccl_token *ccl_parser_tokenize (CCL_parser cclp, const char *command) } if (!first) { - first = last = malloc (sizeof (*first)); - assert (first); + first = last = (struct ccl_token *)malloc (sizeof (*first)); + ccl_assert (first); last->prev = NULL; } else { - last->next = malloc (sizeof(*first)); - assert (last->next); + last->next = (struct ccl_token *)malloc (sizeof(*first)); + ccl_assert (last->next); last->next->prev = last; last = last->next; } @@ -269,9 +304,6 @@ struct ccl_token *ccl_parser_tokenize (CCL_parser cclp, const char *command) else last->kind = CCL_TOK_REL; break; - case '-': - last->kind = CCL_TOK_MINUS; - break; case '\"': last->kind = CCL_TOK_TERM; last->name = cp; @@ -290,16 +322,32 @@ struct ccl_token *ccl_parser_tokenize (CCL_parser cclp, const char *command) cp++; ++ last->len; } - if (token_cmp (cclp, cclp->ccl_token_and, last)) + last->kind = CCL_TOK_TERM; + + aliases = ccl_qual_search_special(cclp->bibset, "and"); + if (!aliases) + aliases = cclp->ccl_token_and; + if (token_cmp (cclp, aliases, last)) last->kind = CCL_TOK_AND; - else if (token_cmp (cclp, cclp->ccl_token_or, last)) + + aliases = ccl_qual_search_special(cclp->bibset, "or"); + if (!aliases) + aliases = cclp->ccl_token_or; + if (token_cmp (cclp, aliases, last)) last->kind = CCL_TOK_OR; - else if (token_cmp (cclp, cclp->ccl_token_not, last)) + + aliases = ccl_qual_search_special(cclp->bibset, "not"); + if (!aliases) + aliases = cclp->ccl_token_not; + if (token_cmp (cclp, aliases, last)) last->kind = CCL_TOK_NOT; - else if (token_cmp (cclp, cclp->ccl_token_set, last)) + + aliases = ccl_qual_search_special(cclp->bibset, "set"); + if (!aliases) + aliases = cclp->ccl_token_set; + + if (token_cmp (cclp, aliases, last)) last->kind = CCL_TOK_SET; - else - last->kind = CCL_TOK_TERM; } } return first; @@ -331,9 +379,17 @@ void ccl_token_del (struct ccl_token *list) } } +char *ccl_strdup (const char *str) +{ + int len = strlen(str); + char *p = (char*) malloc (len+1); + strcpy (p, str); + return p; +} + CCL_parser ccl_parser_create (void) { - CCL_parser p = malloc (sizeof(*p)); + CCL_parser p = (CCL_parser)malloc (sizeof(*p)); if (!p) return p; p->look_token = NULL; @@ -341,10 +397,10 @@ CCL_parser ccl_parser_create (void) p->error_pos = NULL; p->bibset = NULL; - p->ccl_token_and = "and"; - p->ccl_token_or = "or"; - p->ccl_token_not = "not andnot"; - p->ccl_token_set = "set"; + p->ccl_token_and = ccl_strdup("and"); + p->ccl_token_or = ccl_strdup("or"); + p->ccl_token_not = ccl_strdup("not andnot"); + p->ccl_token_set = ccl_strdup("set"); p->ccl_case_sensitive = 1; return p; @@ -354,6 +410,53 @@ void ccl_parser_destroy (CCL_parser p) { if (!p) return; + free (p->ccl_token_and); + free (p->ccl_token_or); + free (p->ccl_token_not); + free (p->ccl_token_set); free (p); } +void ccl_parser_set_op_and (CCL_parser p, const char *op) +{ + if (p && op) + { + if (p->ccl_token_and) + free (p->ccl_token_and); + p->ccl_token_and = ccl_strdup (op); + } +} + +void ccl_parser_set_op_or (CCL_parser p, const char *op) +{ + if (p && op) + { + if (p->ccl_token_or) + free (p->ccl_token_or); + p->ccl_token_or = ccl_strdup (op); + } +} +void ccl_parser_set_op_not (CCL_parser p, const char *op) +{ + if (p && op) + { + if (p->ccl_token_not) + free (p->ccl_token_not); + p->ccl_token_not = ccl_strdup (op); + } +} +void ccl_parser_set_op_set (CCL_parser p, const char *op) +{ + if (p && op) + { + if (p->ccl_token_set) + free (p->ccl_token_set); + p->ccl_token_set = ccl_strdup (op); + } +} + +void ccl_parser_set_case (CCL_parser p, int case_sensitivity_flag) +{ + if (p) + p->ccl_case_sensitive = case_sensitivity_flag; +}