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- /* Copyright (C) 1995 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-
-
- #include <stdio.h>
- #include "_scm.h"
-
-
-
- /* {Ports - soft ports}
- *
- */
-
-
- #ifdef __STDC__
- static int
- prinsfpt (SCM exp, SCM port, int writing)
- #else
- static int
- prinsfpt (exp, port, writing)
- SCM exp;
- SCM port;
- int writing;
- #endif
- {
- scm_prinport (exp, port, "soft");
- return !0;
- }
-
- /* sfputc sfwrite sfputs sfclose
- * are called within a SYSCALL.
- *
- * So we need to set errno to 0 before returning. sfflush
- * may be called within a SYSCALL. So we need to set errno to 0
- * before returning.
- */
-
- #ifdef __STDC__
- static int
- sfputc (int c, SCM p)
- #else
- static int
- sfputc (c, p)
- int c;
- SCM p;
- #endif
- {
- scm_apply (VELTS (p)[0], MAKICHR (c), listofnull);
- errno = 0;
- return c;
- }
-
- #ifdef __STDC__
- static sizet
- sfwrite (char *str, sizet siz, sizet num, SCM p)
- #else
- static sizet
- sfwrite (str, siz, num, p)
- char *str;
- sizet siz;
- sizet num;
- SCM p;
- #endif
- {
- SCM sstr;
- sstr = scm_makfromstr (str, siz * num, 0);
- scm_apply (VELTS (p)[1], sstr, listofnull);
- errno = 0;
- return num;
- }
-
- #ifdef __STDC__
- static int
- sfputs (char *s, SCM p)
- #else
- static int
- sfputs (s, p)
- char *s;
- SCM p;
- #endif
- {
- sfwrite (s, 1, strlen (s), p);
- return 0;
- }
-
- #ifdef __STDC__
- static int
- sfflush (SCM stream)
- #else
- static int
- sfflush (stream)
- SCM stream;
- #endif
- {
- SCM f = VELTS (stream)[2];
- if (BOOL_F == f)
- return 0;
- f = scm_apply (f, EOL, EOL);
- errno = 0;
- return BOOL_F == f ? EOF : 0;
- }
-
- #ifdef __STDC__
- static int
- sfgetc (SCM p)
- #else
- static int
- sfgetc (p)
- SCM p;
- #endif
- {
- SCM ans;
- ans = scm_apply (VELTS (p)[3], EOL, EOL);
- errno = 0;
- if (FALSEP (ans) || EOF_VAL == ans)
- return EOF;
- ASSERT (ICHRP (ans), ans, ARG1, "getc");
- return ICHR (ans);
- }
-
- #ifdef __STDC__
- static int
- sfclose (SCM p)
- #else
- static int
- sfclose (p)
- SCM p;
- #endif
- {
- SCM f = VELTS (p)[4];
- if (BOOL_F == f)
- return 0;
- f = scm_apply (f, EOL, EOL);
- errno = 0;
- return BOOL_F == f ? EOF : 0;
- }
-
-
-
- PROC (s_make_soft_port, "make-soft-port", 2, 0, 0, scm_make_soft_port);
- #ifdef __STDC__
- SCM
- scm_make_soft_port (SCM pv, SCM modes)
- #else
- SCM
- scm_make_soft_port (pv, modes)
- SCM pv;
- SCM modes;
- #endif
- {
- SCM z;
- ASSERT (NIMP (pv) && VECTORP (pv) && 5 == LENGTH (pv), pv, ARG1, s_make_soft_port);
- ASSERT (NIMP (modes) && STRINGP (modes), modes, ARG2, s_make_soft_port);
- NEWCELL (z);
- DEFER_INTS;
- CAR (z) = tc16_sfport | scm_mode_bits (CHARS (modes));
- SETSTREAM (z, pv);
- scm_add_to_port_table (z);
- ALLOW_INTS;
- return z;
- }
-
- #ifdef __STDC__
- static int
- noop0 (FILE *stream)
- #else
- static int
- noop0 (stream)
- FILE *stream;
- #endif
- {
- return 0;
- }
-
- scm_ptobfuns scm_sfptob =
- {
- scm_markcdr,
- noop0,
- prinsfpt,
- 0,
- sfputc,
- sfputs,
- sfwrite,
- sfflush,
- sfgetc,
- sfclose
- };
-
-
- #ifdef __STDC__
- void
- scm_init_vports (void)
- #else
- void
- scm_init_vports ()
- #endif
- {
- #include "vports.x"
- }
-
-