GRASS Programmer's Manual  6.5.svn(2014)-r66266
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key_value4.c File Reference

Key_Value management. More...

#include <grass/gis.h>
#include <string.h>
Include dependency graph for key_value4.c:

Go to the source code of this file.


int G_update_key_value_file (const char *file, const char *key, const char *value)
 Update file, set up value for given key. More...
int G_lookup_key_value_from_file (const char *file, const char *key, char value[], int n)
 Look up for key in file. 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_value4.c.

Function Documentation

int G_lookup_key_value_from_file ( const char *  file,
const char *  key,
char  value[],
int  n 

Look up for key in file.

[in]keykey to be found in file
[out]valuevalue for key
[in]nnumber of characters to be copied
<0 are file/memory errors
0 not found
1 ok

Definition at line 64 of file key_value4.c.

References G_find_key_value(), G_free_key_value(), G_read_key_value_file(), and stat.

Referenced by GPJ_osr_to_grass().

int G_update_key_value_file ( const char *  file,
const char *  key,
const char *  value 

Update file, set up value for given key.

[in]filefilename to be updated
[in]keykey value
[in]valuevalue to be updated
-1 can't open file for reading
-2 no memory for key,value info, file not modified
-3 can't open file for re-write
-4 error writing the file (might be damaged)

Definition at line 31 of file key_value4.c.

References G_free_key_value(), G_read_key_value_file(), G_set_key_value(), G_write_key_value_file(), and stat.