CQL sortkeys utilities. More...

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

Functions
static void	pr_n (void(pr)(const char buf, void client_data), const char buf, int len, void *client_data)

static int	cql_sort_modifiers (struct cql_node cn, void(pr)(const char buf, void client_data), void *client_data)

int	cql_sortby_to_sortkeys (struct cql_node cn, void(pr)(const char buf, void client_data), void *client_data)
	converts CQL sortby to sortkeys (ala versions 1.1)

int	cql_sortby_to_sortkeys_buf (struct cql_node cn, char out, int max)
	converts CQL sortby to sortkeys ..

Detailed Description

CQL sortkeys utilities.

Definition in file cql_sortkeys.c.

Function Documentation

◆ cql_sort_modifiers()

static int cql_sort_modifiers	(	struct cql_node *	cn,
		void()(const char buf, void *client_data)	pr,
		void *	client_data
	)

static

Definition at line 44 of file cql_sortkeys.c.

References cql_node::index, cql_node::modifiers, cql_node::st, and cql_node::u.

Referenced by cql_sortby_to_sortkeys().

◆ cql_sortby_to_sortkeys()

int cql_sortby_to_sortkeys	(	struct cql_node *	cn,
		void()(const char buf, void *client_data)	pr,
		void *	client_data
	)

converts CQL sortby to sortkeys (ala versions 1.1)

Parameters

cn	CQL tree
pr	print function
client_data	data to be passed to pr function

This will take CQL_NODE_SORT entries and conver them to

path,schema,ascending,caseSensitive,missingValue items..

One for each sort keys. Where

path is string index for sorting

schema is schema for sort index

ascending is a boolean (0=false, 1=true). Default is true.

caseSensitive is a boolean. Default is false.

missingValue is a string and one of 'abort', 'highValue', 'lowValue', or 'omit'. Default is 'highValue'.

Definition at line 83 of file cql_sortkeys.c.

References CQL_NODE_SORT, cql_sort_modifiers(), cql_node::index, cql_node::modifiers, cql_node::next, pr_n(), cql_node::sort, cql_node::u, and cql_node::which.

Referenced by cql_sortby_to_sortkeys_buf().

◆ cql_sortby_to_sortkeys_buf()

int cql_sortby_to_sortkeys_buf	(	struct cql_node *	cn,
		char *	out,
		int	max
	)

converts CQL sortby to sortkeys ..

Parameters

cn	CQL tree
out	result buffer
max	size of buffer (allocated)

Return values

0	OK
-1	ERROR

Definition at line 120 of file cql_sortkeys.c.

References cql_buf_write_info::buf, cql_buf_write_handler(), cql_sortby_to_sortkeys(), cql_buf_write_info::max, and cql_buf_write_info::off.

Referenced by cql2pqf().

◆ pr_n()

static void pr_n	(	void()(const char buf, void *client_data)	pr,
		const char *	buf,
		int	len,
		void *	client_data
	)