Clean-up the CCL API. Moved some internal structures from ccl.h to

[yaz-moved-to-github.git] / src / cclp.h

diff --git a/src/cclp.h b/src/cclp.h
new file mode 100644 (file)
index 0000000..a45052d
--- /dev/null
+++ b/src/cclp.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 1995-2005, Index Data ApS
+ * See the file LICENSE for details.
+ *
+ * $Id: cclp.h,v 1.1 2007-04-25 20:52:19 adam Exp $
+ */
+
+#include <yaz/ccl.h>
+
+#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 parser structure */
+struct ccl_parser {
+    /** current lookahead token */
+    struct ccl_token *look_token;
+    
+    /** holds error code if error occur */
+    int error_code;
+    /** start of CCL string buffer */
+    const char *start_pos;
+    /** 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;
+};
+
+/**
+ * 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);
+
+/** 
+ * 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);
+
+
+YAZ_EXPORT
+struct ccl_rpn_node *ccl_parser_find_token(CCL_parser cclp,
+                                           struct ccl_token *list);
+
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+