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.
struct cql_node *	cql_node_mk_sort (NMEM nmem, const char *index, struct cql_node *modifiers)
	creates a sort single spec 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)

Detailed Description

Implements CQL tree node utilities.

Definition in file cqlutil.c.

Function Documentation

cql_apply_prefix()

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.

Definition at line 110 of file cqlutil.c.

References cql_node::boolean, cql_apply_prefix(), CQL_NODE_BOOL, CQL_NODE_SORT, CQL_NODE_ST, cql_strncmp(), cql_node::index, cql_node::index_uri, cql_node::left, cql_node::modifiers, nmem_strdup(), cql_node::relation, cql_node::relation_uri, cql_node::right, cql_node::search, cql_node::sort, cql_node::st, cql_node::u, and cql_node::which.

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

cql_fputs()

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

stream handle for file (used by cql_to_xml_stdio)

Definition at line 18 of file cqlutil.c.

Referenced by cql_to_ccl_stdio(), cql_to_xml_stdio(), and cql_transform_FILE().

cql_node_destroy()

void cql_node_destroy

(

struct cql_node *

cn

)

destroys a node and its children.

Definition at line 173 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, cql_node_destroy(), CQL_NODE_SORT, CQL_NODE_ST, cql_node::left, cql_node::modifiers, cql_node::next, cql_node::right, cql_node::search, cql_node::sort, cql_node::st, cql_node::u, and cql_node::which.

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

cql_node_dup()

struct cql_node * cql_node_dup	(	NMEM	nmem,
		struct cql_node *	cp
	)

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

Definition at line 24 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, cql_node_dup(), cql_node_mk_boolean(), cql_node_mk_sc(), cql_node_mk_sort(), CQL_NODE_SORT, CQL_NODE_ST, cql_node::index, cql_node::index_uri, cql_node::left, cql_node::modifiers, cql_node::next, nmem_strdup(), cql_node::relation, cql_node::relation_uri, cql_node::right, cql_node::search, cql_node::sort, cql_node::st, cql_node::term, cql_node::u, cql_node::value, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

cql_node_mk_boolean()

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

creates a boolean node.

Definition at line 78 of file cqlutil.c.

References cql_node::boolean, CQL_NODE_BOOL, cql_node::left, cql_node::modifiers, nmem_malloc(), nmem_strdup(), cql_node::right, cql_node::u, cql_node::value, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

cql_node_mk_sc()

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

creates a search clause node (st).

Definition at line 55 of file cqlutil.c.

References CQL_NODE_ST, cql_node::extra_terms, cql_node::index, cql_node::index_uri, cql_node::modifiers, nmem_malloc(), nmem_strdup(), cql_node::relation, cql_node::relation_uri, cql_node::st, cql_node::term, cql_node::u, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

cql_node_mk_sort()

struct cql_node * cql_node_mk_sort	(	NMEM	nmem,
		const char *	index,
		struct cql_node *	modifiers
	)

creates a sort single spec node.

Definition at line 91 of file cqlutil.c.

References CQL_NODE_SORT, cql_node::index, cql_node::modifiers, cql_node::next, nmem_malloc(), nmem_strdup(), cql_node::search, cql_node::sort, cql_node::u, and cql_node::which.

Referenced by cql_node_dup(), and yyparse().

cql_strcmp()

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 194 of file cqlutil.c.

Referenced by cql_lookup_property(), cql_transform_r(), emit_node(), node_bool(), node_st(), and yylex().

cql_strncmp()

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 210 of file cqlutil.c.

Referenced by cql_apply_prefix(), and cql_transform_r().

cql_uri()

const char * cql_uri

(

void

)

returns the standard CQL context set URI.

Returns

CQL URI string

Definition at line 105 of file cqlutil.c.

Referenced by emit_node().