1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/* This file contains the label method, which is a standard part of libplot
(supplied for backward compatibility). It draws a label, i.e. a text
string, at the current location of the graphics device cursor. It is
obsoleted by the alabel method, which allows justification. */
#include "sys-defines.h"
#include "plot.h"
#include "extern.h"
int
#ifdef _HAVE_PROTOS
_m_label (const char *s)
#else
_m_label (s)
const char *s;
#endif
{
char *nl;
if (!_plotter->open)
{
_plotter->error ("label: invalid operation");
return -1;
}
if (_plotter->outstream)
{
/* null pointer handled specially */
if (s == NULL)
s = "(null)";
if ((nl = strchr (s, '\n')))
*nl = '\0'; /* don't grok multiline arg strings */
fprintf (_plotter->outstream, "%c%s\n", LABEL, s);
}
return 0;
}
|
