cqlutil.c File Reference

Implements CQL tree node utilities. More...

#include <stdlib.h>
#include <string.h>
#include <yaz/cql.h>

Go to the source code of this file.

Functions
void	cql_fputs (const char *buf, void *client_data)
	stream handle for file (used by cql_to_xml_stdio)
struct cql_node *	cql_node_dup (NMEM nmem, struct cql_node *cp)
struct cql_node *	cql_node_mk_sc (NMEM nmem, const char *index, const char *relation, const char *term)
	creates a search clause node (st).
struct cql_node *	cql_node_mk_boolean (NMEM nmem, const char *op)
	creates a boolean node.
const char *	cql_uri (void)
	returns the standard CQL context set URI.
struct cql_node *	cql_apply_prefix (NMEM nmem, struct cql_node *n, const char *prefix, const char *uri)
	applies a prefix+uri to "unresolved" index and relation URIs. "unresolved" URIs are those nodes where member index_uri / relation_uri is NULL.
void	cql_node_destroy (struct cql_node *cn)
	destroys a node and its children.
int	cql_strcmp (const char *s1, const char *s2)
	compares two CQL strings (ala strcmp)
int	cql_strncmp (const char *s1, const char *s2, size_t n)
	compares two CQL strings (ala strncmp)

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Detailed Description

Implements CQL tree node utilities.

Definition in file cqlutil.c.

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Function Documentation

struct cql_node* cql_apply_prefix	(	NMEM	nmem,
		struct cql_node *	n,
		const char *	prefix,
		const char *	uri
	)			[read]

applies a prefix+uri to "unresolved" index and relation URIs. "unresolved" URIs are those nodes where member index_uri / relation_uri is NULL.

Definition at line 89 of file cqlutil.c.

References cql_node::boolean, cql_apply_prefix(), CQL_NODE_BOOL, CQL_NODE_ST, cql_strncmp(), nmem_strdup(), cql_node::st, cql_node::u, and cql_node::which.

Referenced by cql_apply_prefix(), cql_transform(), and yyparse().

void cql_fputs	(	const char *	buf,
		void *	client_data
	)

stream handle for file (used by cql_to_xml_stdio)

Definition at line 16 of file cqlutil.c.

Referenced by cql_to_xml_stdio(), and cql_transform_FILE().

void cql_node_destroy

(

struct cql_node *

cn

)

destroys a node and its children.

Definition at line 132 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, cql_node_destroy(), CQL_NODE_ST, cql_node::st, cql_node::u, and cql_node::which.

Referenced by cql_node_destroy(), cql_parser_destroy(), cql_parser_stream(), and yyparse().

struct cql_node* cql_node_dup	(	NMEM	nmem,
		struct cql_node *	cp
	)			[read]

duplicates a node (returns a copy of supplied node) .

Definition at line 22 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, cql_node_dup(), cql_node_mk_boolean(), cql_node_mk_sc(), CQL_NODE_ST, nmem_strdup(), cql_node::st, cql_node::u, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

struct cql_node* cql_node_mk_boolean	(	NMEM	nmem,
		const char *	op
	)			[read]

creates a boolean node.

Definition at line 71 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, nmem_malloc(), nmem_strdup(), cql_node::u, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

struct cql_node* cql_node_mk_sc	(	NMEM	nmem,
		const char *	index,
		const char *	relation,
		const char *	term
	)			[read]

creates a search clause node (st).

Definition at line 48 of file cqlutil.c.

References CQL_NODE_ST, nmem_malloc(), nmem_strdup(), cql_node::st, cql_node::u, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

int cql_strcmp	(	const char *	s1,
		const char *	s2
	)

compares two CQL strings (ala strcmp)

Parameters:

	s1	string 1
	s2	string 2

Returns:

comparison value Compares two CQL strings (for relations, operators, etc) (unfortunately defined as case-insensitive unlike XML etc)

Definition at line 148 of file cqlutil.c.

Referenced by cql_lookup_property(), cql_transform(), cql_transform_r(), and yylex().

int cql_strncmp	(	const char *	s1,
		const char *	s2,
		size_t	n
	)

compares two CQL strings (ala strncmp)

Parameters:

	s1	string 1
	s2	string 2
	n	size

Returns:

comparison value Compares two CQL strings at most n bytes (unfortunately defined as case-insensitive unlike XML etc)

Definition at line 164 of file cqlutil.c.

Referenced by cql_apply_prefix(), and cql_transform().

const char* cql_uri

(

void

)

returns the standard CQL context set URI.

Returns:

CQL URI string

Definition at line 84 of file cqlutil.c.

Referenced by cql_transform_r().