int input_init()
{
if( is_init )
return 1;
is_init = 1;
input_common_init( &interrupt_handler );
if( setupterm( 0, STDOUT_FILENO, 0) == ERR )
{
debug( 0, _( L"Could not set up terminal" ) );
exit(1);
}
output_set_term( env_get( L"TERM" ) );
input_terminfo_init();
/*
If we have no keybindings, add a few simple defaults
*/
if( !al_get_count( &mappings ) )
{
input_mapping_add( L"", L"self-insert" );
input_mapping_add( L"\n", L"execute" );
input_mapping_add( L"\t", L"complete" );
input_mapping_add( L"\x3", L"commandline \"\"" );
input_mapping_add( L"\x4", L"exit" );
input_mapping_add( L"\x5", L"bind" );
}
return 1;
}
/**
Initialize various subsystems. This also closes stdin and replaces
it with a copy of stderr, so the reading of completion strings must
be done before init is called.
*/
static void init( int mangle_descriptors, int out )
{
struct sigaction act;
static struct termios pager_modes;
char *term;
if( mangle_descriptors )
{
/*
Make fd 1 output to screen, and use some other fd for writing
the resulting output back to the caller
*/
int in;
out = dup( 1 );
close(1);
close(0);
/* OK to not use CLO_EXEC here because fish_pager is single threaded */
if( (in = open( ttyname(2), O_RDWR )) != -1 )
{
if( dup2( 2, 1 ) == -1 )
{
debug( 0, _(L"Could not set up output file descriptors for pager") );
exit( 1 );
}
if( dup2( in, 0 ) == -1 )
{
debug( 0, _(L"Could not set up input file descriptors for pager") );
exit( 1 );
}
}
else
{
debug( 0, _(L"Could not open tty for pager") );
exit( 1 );
}
}
if( !(out_file = fdopen( out, "w" )) )
{
debug( 0, _(L"Could not initialize result pipe" ) );
exit( 1 );
}
env_universal_init( 0, 0, 0, 0);
input_common_init( &interrupt_handler );
output_set_writer( &pager_buffered_writer );
sigemptyset( & act.sa_mask );
act.sa_flags=0;
act.sa_handler=SIG_DFL;
act.sa_flags = 0;
act.sa_handler= &handle_winch;
if( sigaction( SIGWINCH, &act, 0 ) )
{
wperror( L"sigaction" );
exit(1);
}
handle_winch( 0 ); /* Set handler for window change events */
tcgetattr(0,&pager_modes); /* get the current terminal modes */
memcpy( &saved_modes,
&pager_modes,
sizeof(saved_modes)); /* save a copy so we can reset the terminal later */
pager_modes.c_lflag &= ~ICANON; /* turn off canonical mode */
pager_modes.c_lflag &= ~ECHO; /* turn off echo mode */
pager_modes.c_cc[VMIN]=1;
pager_modes.c_cc[VTIME]=0;
/*
*/
if( tcsetattr(0,TCSANOW,&pager_modes)) /* set the new modes */
{
wperror(L"tcsetattr");
exit(1);
}
if( setupterm( 0, STDOUT_FILENO, 0) == ERR )
{
debug( 0, _(L"Could not set up terminal") );
exit(1);
}
term = getenv("TERM");
if( term )
{
wchar_t *wterm = str2wcs(term);
output_set_term( wterm );
free( wterm );
}
/* Infer term256 support */
char *fish_term256 = getenv("fish_term256");
bool support_term256;
if (fish_term256) {
support_term256 = from_string<bool>(fish_term256);
} else {
support_term256 = term && strstr(term, "256color");
}
output_set_supports_term256(support_term256);
}
