File: display.c

package info (click to toggle)
plotutils 2.4.1-15
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 11,072 kB
  • ctags: 6,952
  • sloc: ansic: 76,305; cpp: 12,402; sh: 8,475; yacc: 2,604; makefile: 894; lex: 144
file content (154 lines) | stat: -rw-r--r-- 4,088 bytes parent folder | download | duplicates (2)
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
/* This file contains the display_usage routine, which is used in
   user-level programs in the plotutils package.  It prints program options
   and long options in a reasonably nice format.
   
   This file also contains the display_version routine. */

#include "sys-defines.h"
#include "getopt.h"

/* global array of long options, in program we're to be linked with */
extern struct option long_options[];

#define	ARG_NONE	0
#define	ARG_REQUIRED	1
#define	ARG_OPTIONAL	2

/* forward references */
bool elementp ____P((int item, const int *list));
void display_usage ____P((const char *progname, const int *omit_vals, const char *appendage, bool fonts));
void display_version ____P((const char *progname));

bool
#ifdef _HAVE_PROTOS
elementp (int item, const int *list)
#else
elementp (item, list)
     int item;
     const int *list;		/* null-terminated list of integers */
#endif
{
  int list_item;

  while ((list_item = *list++) != 0)
    {
      if (item == list_item)
	return true;
    }
  return false;
}

void
#ifdef _HAVE_PROTOS
display_usage (const char *progname, const int *omit_vals, const char *appendage, bool fonts)
#else
display_usage (progname, omit_vals, appendage, fonts)
     const char *progname;
     const int *omit_vals;
     const char *appendage;
     bool fonts;
#endif
{
  int i;
  int col = 0;
  
  fprintf (stdout, "Usage: %s", progname);
  col += (strlen (progname) + 7);
  for (i = 0; long_options[i].name; i++)
    {
      int option_len;
      
      if (elementp (long_options[i].val, omit_vals))
	continue;

      option_len = strlen (long_options[i].name);
      if (col >= 80 - (option_len + 16))
	{
	  fputs ("\n\t", stdout);
	  col = 8;
	}
      fprintf (stdout, " [--%s", long_options[i].name);
      col += (option_len + 4);
      if ((unsigned int)(long_options[i].val) < 256)
	{
	  fprintf (stdout, " | -%c", long_options[i].val);
	  col += 5;
	}
      if (long_options[i].has_arg == ARG_REQUIRED)
	{
	  fputs (" arg]", stdout);
	  col += 5;
	}
      else if (long_options[i].has_arg == ARG_OPTIONAL)
	{
	  fputs (" [arg(s)]]", stdout);
	  col += 10;
	}
      else
	{
	  fputs ("]", stdout);
	  col++;
	}
    }

  if (appendage != NULL)
    fputs (appendage, stdout);
  else
    fputs ("\n", stdout);

  if (fonts)
#ifdef INCLUDE_PNG_SUPPORT
#ifndef X_DISPLAY_MISSING
    fprintf (stdout, "\n\
To list available fonts, type `%s -T \"format\" --help-fonts',\n\
where \"format\" is the output format:\n\
X, png, pnm, gif, svg, ai, ps, cgm, fig, pcl, hpgl, regis, or tek.\n",
	     progname);
#else  /* X_DISPLAY_MISSING */
    fprintf (stdout, "\n\
To list available fonts, type `%s -T \"format\" --help-fonts',\n\
where \"format\" is the output format:\n\
png, pnm, gif, svg, ai, ps, cgm, fig, pcl, hpgl, regis, or tek.\n",
	     progname);
#endif /* X_DISPLAY_MISSING */
#else  /* not INCLUDE_PNG_SUPPORT */
#ifndef X_DISPLAY_MISSING
    fprintf (stdout, "\n\
To list available fonts, type `%s -T \"format\" --help-fonts',\n\
where \"format\" is the output format:\n\
X, pnm, gif, svg, ai, ps, cgm, fig, pcl, hpgl, regis, or tek.\n",
	     progname);
#else  /* X_DISPLAY_MISSING */
    fprintf (stdout, "\n\
To list available fonts, type `%s -T \"format\" --help-fonts',\n\
where \"format\" is the output format:\n\
pnm, gif, svg, ai, ps, cgm, fig, pcl, hpgl, regis, or tek.\n",
	     progname);
#endif /* X_DISPLAY_MISSING */
#endif

  if ((appendage != NULL) || fonts)
    fputs ("\n", stdout);
  fputs ("\
Report bugs to bug-gnu-utils@gnu.org.\n", stdout);
}

void
#ifdef _HAVE_PROTOS
display_version (const char *progname)
#else
display_version (progname)
     const char *progname;
#endif
{
  fprintf (stdout, 
	   "%s (GNU %s) %s\n", progname, PACKAGE, VERSION);
  fprintf (stdout, 
	   "Copyright (C) 1989-2000 Free Software Foundation, Inc.\n");
  fprintf (stdout, 
	   "The GNU %s package comes with NO WARRANTY, to the extent permitted\n", PACKAGE);
  fprintf (stdout, 
	   "by law. You may redistribute copies of the GNU %s package\n", PACKAGE);
  fprintf (stdout, 
	   "under the terms of the GNU General Public License.\n");
}