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io.ops
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io.ops
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/*
* Copyright (C) 2002-2008, Parrot Foundation.
** io.ops
*/
BEGIN_OPS_PREAMBLE
#include "../io/io_private.h"
END_OPS_PREAMBLE
=head1 NAME
io.ops - I/O Opcodes
=cut
=head1 DESCRIPTION
Parrot's IO API
When making changes to any ops file, run C<make bootstrap-ops> to regenerate
all generated ops files.
=cut
###############################################################################
=head2 Parrot IO API Operations
=over 4
=cut
########################################
=item B<print>(in INT)
=item B<print>(in NUM)
=item B<print>(invar PMC)
=item B<print>(in STR)
Print $1 to standard output.
=cut
inline op print(in INT) :base_io {
Parrot_io_printf(interp, INTVAL_FMT, (INTVAL)$1);
}
inline op print(in NUM) :base_io {
#ifdef PARROT_HAS_NEGATIVE_ZERO
Parrot_io_printf(interp, FLOATVAL_FMT, $1);
#else
/* Workaround for older msvcrt and openbsd. TT #313 */
if (Parrot_is_nzero($1)) {
Parrot_io_printf(interp, "-0");
}
else {
Parrot_io_printf(interp, FLOATVAL_FMT, $1);
}
#endif
}
op print(in STR) :base_io {
STRING * const s = $1;
if (s && Parrot_str_byte_length(interp, s))
Parrot_io_putps(interp, _PIO_STDOUT(interp), s);
}
op print(invar PMC) :base_io {
PMC * const p = $1;
STRING * const s = (VTABLE_get_string(interp, p));
if (s)
Parrot_io_putps(interp, _PIO_STDOUT(interp), s);
}
=item B<say>(in INT)
=item B<say>(in NUM)
=item B<say>(invar PMC)
=item B<say>(in STR)
Print $1 to standard output with a trailing newline.
=cut
inline op say(in INT) :base_io {
Parrot_io_printf(interp, INTVAL_FMT "\n", (INTVAL)$1);
}
inline op say(in NUM) :base_io {
#ifdef PARROT_HAS_NEGATIVE_ZERO
Parrot_io_printf(interp, FLOATVAL_FMT "\n", $1);
#else
/* Workaround for older msvcrt and openbsd. TT #313 */
if (Parrot_is_nzero($1)) {
Parrot_io_printf(interp, "-0\n");
}
else {
Parrot_io_printf(interp, FLOATVAL_FMT "\n", $1);
}
#endif
}
op say(in STR) :base_io {
STRING * const s = $1;
if (s && Parrot_str_byte_length(interp, s))
Parrot_io_putps(interp, _PIO_STDOUT(interp), s);
Parrot_io_putps(interp, _PIO_STDOUT(interp), Parrot_str_new_constant(interp, "\n"));
}
op say(invar PMC) :base_io {
PMC * const p = $1;
if (PMC_IS_NULL(p)) {
opcode_t *handler = Parrot_ex_throw_from_op_args(interp, expr NEXT(),
EXCEPTION_UNEXPECTED_NULL,
"Null PMC in say");
goto ADDRESS(handler);
}
else {
STRING * const s = VTABLE_get_string(interp, p);
if (s)
Parrot_io_putps(interp, _PIO_STDOUT(interp), s);
Parrot_io_putps(interp, _PIO_STDOUT(interp), Parrot_str_new_constant(interp, "\n"));
}
}
##########################################
=item B<print>(invar PMC, in INT)
=item B<print>(invar PMC, in NUM)
=item B<print>(invar PMC, in STR)
=item B<print>(invar PMC, invar PMC)
Print $2 on the IO stream object $1.
=cut
op print(invar PMC, in INT) :base_io {
if ($1) {
STRING * const s = Parrot_str_from_int(interp, $2);
Parrot_io_putps(interp, $1, s);
}
}
op print(invar PMC, in NUM) :base_io {
if ($1) {
STRING * const s = Parrot_sprintf_c(interp, FLOATVAL_FMT, $2);
Parrot_io_putps(interp, $1, s);
}
}
op print(invar PMC, in STR) :base_io {
if ($2 && $1) {
Parrot_io_putps(interp, $1, $2);
}
}
op print(invar PMC, invar PMC) :base_io {
if ($2 && $1) {
STRING * const s = VTABLE_get_string(interp, $2);
Parrot_io_putps(interp, $1, s);
}
}
=item B<getstdin>(out PMC)
Create a new ParrotIO object for the stdin file descriptor and
store it in $1
=item B<getstdout>(out PMC)
Create a new ParrotIO object for the stdout file descriptor and
store it in $1
=item B<getstderr>(out PMC)
Create a new ParrotIO object for the stderr file descriptor and
store it in $1
=cut
inline op getstdin(out PMC) :base_io {
$1 = _PIO_STDIN(interp);
}
inline op getstdout(out PMC) :base_io {
$1 = _PIO_STDOUT(interp);
}
inline op getstderr(out PMC) :base_io {
$1 = _PIO_STDERR(interp);
}
###############################################################################
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4 cinoptions='\:2=2' :
*/