minix3/commands/termcap/termcap.c

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2020-02-21 00:59:27 +05:30
/* termcap - print termcap settings Author: Terrence Holm */
#include <stdlib.h>
#include <termcap.h>
#include <stdio.h>
#define TC_BUFFER 1024 /* Size of termcap(3) buffer */
/****************************************************************/
/* */
/* termcap [ type ] */
/* */
/* Prints out all of the termcap capabilities as described */
/* in termcap(4). If "type" is not supplied then $TERM is */
/* used. */
/* */
/****************************************************************/
int main(int argc, char **argv);
void Print(char *comment, char *name);
void Error(char *message, char *arg);
int main(argc, argv)
int argc;
char *argv[];
{
char *term;
char buffer[ TC_BUFFER ];
/* Check for an argument */
if ( argc > 2 )
Error( "Usage: %s [ type ]\n", argv[0] );
if ( argc == 2 )
term = argv[1];
else
term = getenv( "TERM" );
if ( term == NULL )
Error( "termcap: $TERM is not defined\n", "" );
/* Read in the termcap entry */
if ( tgetent( buffer, term ) != 1 )
Error( "termcap: No termcap entry for %s\n", term );
/* Print out the entry's contents */
printf( "TERM = %s\n\n", term );
if ( tgetflag( "am" ) == 1 )
printf( "End of line wraps to next line (am)\n" );
if ( tgetflag( "bs" ) == 1 )
printf( "Ctrl/H performs a backspace (bs)\n" );
printf( "Number of columns (co) = %d\n", tgetnum( "co" ) );
printf( "Number of lines (li) = %d\n", tgetnum( "li" ) );
Print( "Clear to end of line", "ce" );
Print( "Clear to end of screen", "cd" );
Print( "Clear the whole screen", "cl" );
Print( "Start \"stand out\" mode", "so" );
Print( "End \"stand out\" mode", "se" );
Print( "Start underscore mode", "us" );
Print( "End underscore mode", "ue" );
Print( "Start blinking mode", "mb" );
Print( "Start bold mode", "md" );
Print( "Start reverse mode", "mr" );
Print( "Return to normal mode", "me" );
Print( "Scroll backwards", "sr" );
Print( "Cursor motion", "cm" );
Print( "Up one line", "up" );
Print( "Down one line", "do" );
Print( "Left one space", "le" );
Print( "Right one space", "nd" );
Print( "Move to top left corner", "ho" );
Print( "Generated by \"UP\"", "ku" );
Print( "Generated by \"DOWN\"", "kd" );
Print( "Generated by \"LEFT\"", "kl" );
Print( "Generated by \"RIGHT\"", "kr" );
Print( "Generated by \"HOME\"", "kh" );
Print( "Generated by \"END\"", "@7" );
Print( "Generated by \"PGUP\"", "kP" );
Print( "Generated by \"PGDN\"", "kN" );
Print( "Generated by \"F1\" ", "k1" );
Print( "Generated by numeric \"+\"", "%5" );
Print( "Generated by numeric \"-\"", "%8" );
Print( "Generated by numeric \"5\"", "K2" );
return( 0 );
}
/****************************************************************/
/* */
/* Print( comment, name ) */
/* */
/* If a termcap entry exists for "name", then */
/* print out "comment" and the entry. Control */
/* characters are printed as ^x. */
/* */
/****************************************************************/
void Print( comment, name )
char *comment;
char *name;
{
char entry[ 50 ];
char *p = entry;
if ( tgetstr( name, &p ) == NULL )
return;
printf( "%-32s (%s) = ", comment, name );
for ( p = entry; *p != '\0'; ++p )
if ( *p < ' ' )
printf( "^%c", *p + '@' );
else if ( *p == '\177' )
printf( "^?" );
else
putchar( *p );
putchar( '\n' );
}
/****************************************************************/
/* */
/* Error( message, arg ) */
/* */
/* Printf the "message" and abort. */
/* */
/****************************************************************/
void Error( message, arg )
char *message;
char *arg;
{
fprintf( stderr, message, arg );
exit( 1 );
}