/*
* CCL - header file
*
- * $Id: ccl.h,v 1.22 2005-04-15 21:47:55 adam Exp $
+ * $Id: ccl.h,v 1.24 2007-04-25 20:52:18 adam Exp $
*
* Old Europagate Log:
*
#define CCL_RPN_ATTR_NUMERIC 1
#define CCL_RPN_ATTR_STRING 2
union {
- /** numeric attribute value */
- int numeric;
- /** string attribute value */
- char *str;
+ /** numeric attribute value */
+ int numeric;
+ /** string attribute value */
+ char *str;
} value;
};
/** RPN tree node type */
int kind;
union {
- /** Boolean including proximity 0=left, 2=right, 3=prox parms */
- struct ccl_rpn_node *p[3];
- /** Attributes + Term */
- struct {
- char *term;
- struct ccl_rpn_attr *attr_list;
- } t;
- /** Result set */
- char *setname;
+ /** Boolean including proximity 0=left, 2=right, 3=prox parms */
+ struct ccl_rpn_node *p[3];
+ /** Attributes + Term */
+ struct {
+ char *term;
+ struct ccl_rpn_attr *attr_list;
+ } t;
+ /** Result set */
+ char *setname;
} u;
};
#define CCL_BIB1_TRU_CAN_BOTH (-3)
#define CCL_BIB1_TRU_CAN_NONE (-4)
-#define CCL_TOK_EOL 0
-#define CCL_TOK_TERM 1
-#define CCL_TOK_REL 2
-#define CCL_TOK_EQ 3
-#define CCL_TOK_PROX 4
-#define CCL_TOK_LP 5
-#define CCL_TOK_RP 6
-#define CCL_TOK_COMMA 7
-#define CCL_TOK_AND 8
-#define CCL_TOK_OR 9
-#define CCL_TOK_NOT 10
-#define CCL_TOK_SET 11
-
-/** CCL token */
-struct ccl_token {
- char kind;
- size_t len; /* length of name below */
- const char *name; /* string / name of token */
- struct ccl_token *next;
- struct ccl_token *prev;
- const char *ws_prefix_buf; /* leading white space buf */
- size_t ws_prefix_len; /* leading white space len */
-};
-
-/** CCL Qualifier */
-struct ccl_qualifier {
- char *name;
- int no_sub;
- struct ccl_qualifier **sub;
- struct ccl_rpn_attr *attr_list;
- struct ccl_qualifier *next;
-};
-
-/** CCL parser structure */
-struct ccl_parser {
- /** current lookahead token */
- struct ccl_token *look_token;
-
- /** holds error code if error occur */
- int error_code;
- /** if error occurs, this holds position (starting from 0). */
- const char *error_pos;
-
- /** current bibset */
- CCL_bibset bibset;
-
- /** names of and operator */
- char *ccl_token_and;
- /** names of or operator */
- char *ccl_token_or;
- /** names of not operator */
- char *ccl_token_not;
- /** names of set operator */
- char *ccl_token_set;
- /** 1=CCL parser is case sensitive, 0=case insensitive */
- int ccl_case_sensitive;
-};
-
typedef struct ccl_parser *CCL_parser;
/**
- * Splits CCL command string into individual tokens using
- * a CCL parser.
- */
-YAZ_EXPORT
-struct ccl_token *ccl_parser_tokenize (CCL_parser cclp, const char *command);
-
-/**
- * Splits CCL command string into tokens using temporary parser.
- *
- * Use ccl_parser_tokenize instead and provide a parser - it is
- * more flexible and efficient.
- */
-YAZ_EXPORT
-struct ccl_token *ccl_tokenize (const char *command);
-
-/**
- * Deletes token list
- */
-YAZ_EXPORT
-void ccl_token_del (struct ccl_token *list);
-
-/**
- * Add single token after a given onde.
- */
-YAZ_EXPORT
-struct ccl_token *ccl_token_add (struct ccl_token *at);
-
-/**
* Parses a CCL Find command in a simple C string. Returns CCL parse
* tree node describing RPN if parsing is successful. If parsing is
* unsuccesful, NULL is returned and error and pos is set accordingly.
*/
YAZ_EXPORT
struct ccl_rpn_node *ccl_find_str (CCL_bibset bibset,
- const char *str, int *error, int *pos);
-
-/**
- * Parses CCL Find command from a list of CCL tokens. Otherwise similar to
- * ccl_find_str.
- */
-YAZ_EXPORT
-struct ccl_rpn_node *ccl_find (CCL_bibset abibset, struct ccl_token *list,
- int *error, const char **pos);
+ const char *str, int *error, int *pos);
-/**
- * Parses a CCL Find command from a list of CCL tokens and given a CCL
- * parser. Otherwise similar to ccl_find_str.
- */
YAZ_EXPORT
-struct ccl_rpn_node *ccl_parser_find (CCL_parser cclp, struct ccl_token *list);
+struct ccl_rpn_node *ccl_parser_find_str(CCL_parser cclp, const char *str);
/** Set names for AND operator in parser */
YAZ_EXPORT
/** Add qualifier and supply attributes pairs+attribute set for it */
YAZ_EXPORT
void ccl_qual_add_set (CCL_bibset b, const char *name, int no,
- int *type, int *value, char **svalue, char **attsets);
+ int *type, int *value, char **svalue, char **attsets);
/** Add special qualifier */
YAZ_EXPORT
/* Add CCL qualifier by using qual_name + value pair */
YAZ_EXPORT
void ccl_qual_fitem (CCL_bibset bibset, const char *value,
- const char *qual_name);
+ const char *qual_name);
/** Make CCL qualifier set */
YAZ_EXPORT
/** Search for qualifier 'name' in set 'b'. */
YAZ_EXPORT
struct ccl_rpn_attr *ccl_qual_search (CCL_parser cclp, const char *name,
- size_t len, int seq);
+ size_t len, int seq);
/** Create CCL parser */
YAZ_EXPORT
-CCL_parser ccl_parser_create (void);
+CCL_parser ccl_parser_create (CCL_bibset bibset);
/** Destroy CCL parser */
YAZ_EXPORT
/** Search for special qualifier */
YAZ_EXPORT
-const char *ccl_qual_search_special (CCL_bibset b,
- const char *name);
+const char *ccl_qual_search_special (CCL_bibset b, const char *name);
/** Pretty-print CCL RPN node tree to WRBUF */
YAZ_EXPORT
void ccl_pquery (WRBUF w, struct ccl_rpn_node *p);
+YAZ_EXPORT
+CCL_bibset ccl_parser_get_bibset(CCL_parser cclp);
+
+YAZ_EXPORT
+int ccl_parser_get_error(CCL_parser cclp, int *pos);
+
#ifndef ccl_assert
#define ccl_assert(x) ;
#endif
#endif
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
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