2 * ports-internal.h - internal-only declarations for ports.
4 * Copyright (C) 2013 Free Software Foundation, Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 3 of
9 * the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 #ifndef SCM_PORTS_INTERNAL
23 #define SCM_PORTS_INTERNAL
25 #include "libguile/_scm.h"
26 #include "libguile/ports.h"
28 enum scm_port_encoding_mode
{
29 SCM_PORT_ENCODING_MODE_UTF8
,
30 SCM_PORT_ENCODING_MODE_LATIN1
,
31 SCM_PORT_ENCODING_MODE_ICONV
34 typedef enum scm_port_encoding_mode scm_t_port_encoding_mode
;
36 /* This is a separate object so that only those ports that use iconv
37 cause finalizers to be registered. */
38 struct scm_iconv_descriptors
40 /* input/output iconv conversion descriptors */
45 typedef struct scm_iconv_descriptors scm_t_iconv_descriptors
;
47 struct scm_port_internal
49 unsigned at_stream_start_for_bom_read
: 1;
50 unsigned at_stream_start_for_bom_write
: 1;
51 scm_t_port_encoding_mode encoding_mode
;
52 scm_t_iconv_descriptors
*iconv_descriptors
;
57 typedef struct scm_port_internal scm_t_port_internal
;
59 #define SCM_UNICODE_BOM 0xFEFFUL /* Unicode byte-order mark */
61 #define SCM_PORT_GET_INTERNAL(x) (SCM_PTAB_ENTRY(x)->internal)
63 SCM_INTERNAL scm_t_iconv_descriptors
*
64 scm_i_port_iconv_descriptors (SCM port
, scm_t_port_rw_active mode
);