GRASS GIS 8 Programmer's Manual 8.3.2(2024)-exported
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getl.c File Reference

GIS Library - Get line of text from file. More...

#include <stdio.h>
#include <grass/gis.h>
Include dependency graph for getl.c:

Go to the source code of this file.

Functions

int G_getl (char *buf, int n, FILE *fd)
 Gets a line of text from a file.
 
int G_getl2 (char *buf, int n, FILE *fd)
 Gets a line of text from a file of any pedigree.
 

Detailed Description

GIS Library - Get line of text from file.

(C) 2001-2009 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.

Author
Original author CERL

Definition in file getl.c.

Function Documentation

◆ G_getl()

int G_getl ( char * buf,
int n,
FILE * fd )

Gets a line of text from a file.

This routine runs fgets() to fetch a line of text from a file (advancing file pointer) and removes trailing newline. fgets() does not recognize '\r' as an EOL and will read past * it.

Parameters
bufstring buffer to receive read data
nmaximum number of bytes to read
fdfile descriptor structure
Returns
1 on success
0 EOF

Definition at line 31 of file getl.c.

Referenced by G__read_Cell_head(), G_matrix_read(), G_myname(), and M_read_list().

◆ G_getl2()

int G_getl2 ( char * buf,
int n,
FILE * fd )

Gets a line of text from a file of any pedigree.

This routine is like G_getl() but is more portable. It supports text files created on various platforms (UNIX, MacOS9, DOS), i.e. \n (\012), \r (\015), and \r\n (\015\012) style newlines.

Reads in at most n-1 characters from stream (the last spot is reserved for the end-of-string NUL) and stores them into the buffer pointed to by buf. Reading stops after an EOF or a newline. New line is not stored in the buffer. At least n must be allocated for the string buffer.

Parameters
bufstring buffer to receive read data, at least n must be allocated
nmaximum number of bytes to read
fdfile descriptor structure
Returns
1 on success
0 EOF

Definition at line 65 of file getl.c.

Referenced by G_fread_key_value(), G_read_datum_table(), G_read_ellipsoid_table(), GPJ_get_datum_transform_by_name(), read_coor(), read_datum_table(), read_ellipsoid_table(), and S_read().