commands/simple/termcap.c

   1 /* termcap - print termcap settings     Author: Terrence Holm */
   2
   3 #include <stdlib.h>
   4 #include <termcap.h>
   5 #include <stdio.h>
   6
   7 #define  TC_BUFFER  1024        /* Size of termcap(3) buffer    */
   8
   9 /****************************************************************/
  10 /*                                                              */
  11 /*    termcap  [ type ]                                         */
  12 /*                                                              */
  13 /*    Prints out all of the termcap capabilities as described   */
  14 /*    in termcap(4). If "type" is not supplied then $TERM is    */
  15 /*    used.                                                     */
  16 /*                                                              */
  17 /****************************************************************/
  18
  19 _PROTOTYPE(int main, (int argc, char **argv));
  20 _PROTOTYPE(void Print, (char *comment, char *name));
  21 _PROTOTYPE(void Error, (char *message, char *arg));
  22
  23 int main(argc, argv)
  24 int argc;
  25 char *argv[];
  26
  27   {
  28   char *term;
  29   char  buffer[ TC_BUFFER ];
  30
  31
  32   /*  Check for an argument  */
  33
  34   if ( argc > 2 )
  35     Error( "Usage:  %s  [ type ]\n", argv[0] );
  36
  37   if ( argc == 2 )
  38     term = argv[1];
  39   else
  40     term = getenv( "TERM" );
  41
  42   if ( term == NULL )
  43     Error( "termcap:  $TERM is not defined\n", "" );
  44
  45
  46   /*  Read in the termcap entry  */
  47
  48   if ( tgetent( buffer, term ) != 1 )
  49     Error( "termcap:  No termcap entry for %s\n", term );
  50
  51
  52   /*  Print out the entry's contents  */
  53
  54   printf( "TERM = %s\n\n", term );
  55
  56   if ( tgetflag( "am" ) == 1 )
  57     printf( "End of line wraps to next line   (am)\n" );
  58
  59   if ( tgetflag( "bs" ) == 1 )
  60     printf( "Ctrl/H performs a backspace      (bs)\n" );
  61
  62   printf( "Number of columns                (co) = %d\n", tgetnum( "co" ) );
  63   printf( "Number of lines                  (li) = %d\n", tgetnum( "li" ) );
  64
  65   Print( "Clear to end of line",          "ce" );
  66   Print( "Clear to end of screen",        "cd" );
  67   Print( "Clear the whole screen",        "cl" );
  68
  69   Print( "Start \"stand out\" mode",      "so" );
  70   Print( "End \"stand out\" mode",        "se" );
  71   Print( "Start underscore mode",         "us" );
  72   Print( "End underscore mode",           "ue" );
  73   Print( "Start blinking mode",           "mb" );
  74   Print( "Start bold mode",               "md" );
  75   Print( "Start reverse mode",            "mr" );
  76   Print( "Return to normal mode",         "me" );
  77
  78   Print( "Scroll backwards",              "sr" );
  79   Print( "Cursor motion",                 "cm" );
  80
  81   Print( "Up one line",                   "up" );
  82   Print( "Down one line",                 "do" );
  83   Print( "Left one space",                "le" );
  84   Print( "Right one space",               "nd" );
  85   Print( "Move to top left corner",       "ho" );
  86
  87   Print( "Generated by \"UP\"",           "ku" );
  88   Print( "Generated by \"DOWN\"",         "kd" );
  89   Print( "Generated by \"LEFT\"",         "kl" );
  90   Print( "Generated by \"RIGHT\"",        "kr" );
  91   Print( "Generated by \"HOME\"",         "kh" );
  92   Print( "Generated by \"END\"",          "k0" );
  93   Print( "Generated by \"PGUP\"",         "k1" );
  94   Print( "Generated by \"PGDN\"",         "k2" );
  95   Print( "Generated by numeric \"+\"",    "k3" );
  96   Print( "Generated by numeric \"-\"",    "k4" );
  97   Print( "Generated by numeric \"5\"",    "k5" );
  98
  99   return( 0 );
 100   }
 101
 102
 103
 104
 105
 106
 107 /****************************************************************/
 108 /*                                                              */
 109 /*      Print( comment, name )                                  */
 110 /*                                                              */
 111 /*              If a termcap entry exists for "name", then      */
 112 /*              print out "comment" and the entry. Control      */
 113 /*              characters are printed as ^x.                   */
 114 /*                                                              */
 115 /****************************************************************/
 116
 117
 118 void Print( comment, name )
 119   char *comment;
 120   char *name;
 121
 122   {
 123   char  entry[ 50 ];
 124   char *p = entry;
 125
 126   if ( tgetstr( name, &p ) == NULL )
 127     return;
 128
 129   printf( "%-32s (%s) = ", comment, name );
 130
 131   for ( p = entry;  *p != '\0';  ++p )
 132     if ( *p < ' ' )
 133       printf( "^%c", *p + '@' );
 134     else if ( *p == '\177' )
 135       printf( "^?" );
 136     else
 137       putchar( *p );
 138
 139   putchar( '\n' );
 140   }
 141
 142
 143
 144
 145
 146
 147 /****************************************************************/
 148 /*                                                              */
 149 /*      Error( message, arg )                                   */
 150 /*                                                              */
 151 /*              Printf the "message" and abort.                 */
 152 /*                                                              */
 153 /****************************************************************/
 154
 155
 156 void Error( message, arg )
 157   char *message;
 158   char *arg;
 159
 160   {
 161   fprintf( stderr, message, arg );
 162   exit( 1 );
 163   }