GRASS Programmer's Manual  6.5.svn(2014)-r66266
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key_value1.c File Reference

Key_Value management. More...

#include <string.h>
#include <stdlib.h>
#include <grass/gis.h>
Include dependency graph for key_value1.c:

Go to the source code of this file.


struct Key_Value * G_create_key_value (void)
 Allocate and initialize Key_Value structure. More...
int G_set_key_value (const char *key, const char *value, struct Key_Value *kv)
 Set value for given key. More...
char * G_find_key_value (const char *key, const struct Key_Value *kv)
 Find given key. More...
int G_free_key_value (struct Key_Value *kv)
 Free allocated Key_Value structure. More...

Detailed Description

Key_Value management.

(C) 2001-2008 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.


Definition in file key_value1.c.

Function Documentation

struct Key_Value* G_create_key_value ( void  )

Allocate and initialize Key_Value structure.

poiter to allocated Key_Value structure

Definition at line 25 of file key_value1.c.

References NULL.

Referenced by G3d_writeHeader(), G__write_fp_format(), G_fread_key_value(), GPJ_get_ellipsoid_params(), and GPJ_osr_to_grass().

char* G_find_key_value ( const char *  key,
const struct Key_Value *  kv 

Find given key.

[in]keykey to be found
[in]kvKey_value structure
poiter to value of key
NULL if no key found

Definition at line 128 of file key_value1.c.

References n, and NULL.

Referenced by G3d_keyGetDouble(), G3d_keyGetInt(), G3d_keyGetString(), G3d_keyGetValue(), G__check_fp_type(), G_ask_proj_name(), G_compare_projections(), G_get_datumparams_from_projinfo(), G_get_gdal_link(), G_lookup_key_value_from_file(), GPJ__get_datum_params(), GPJ__get_ellipsoid_params(), GPJ_grass_to_osr(), and pj_get_kv().

int G_free_key_value ( struct Key_Value *  kv)
int G_set_key_value ( const char *  key,
const char *  value,
struct Key_Value *  kv 

Set value for given key.

If key has spaces in it, this will break the logic so rule is: NO SPACES IN key.

[in]keykey to be set up
[in]valuevalue for given key
[in,out]kvKey_value structure to be modified
0 no memory
1 ok, but key was NULL or "" so ignored
2 ok

Definition at line 55 of file key_value1.c.

References G_free(), n, NULL, and tools::size.

Referenced by G3d_keySetDouble(), G3d_keySetInt(), G3d_keySetString(), G3d_keySetValue(), G__write_fp_format(), G_fread_key_value(), G_update_key_value_file(), and GPJ_osr_to_grass().