#ifndef SCM_PORTS_H
#define SCM_PORTS_H
-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2003, 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006,
+ * 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
#include "libguile/__scm.h"
+#include <unistd.h>
#include "libguile/print.h"
#include "libguile/struct.h"
#include "libguile/threads.h"
/* a buffer for un-read chars and strings. */
unsigned char *putback_buf;
size_t putback_buf_size; /* allocated size of putback_buf. */
+
+ /* IMPORTANT: 'input_cd' and 'output_cd' used to be pointers to the
+ input and output iconv descriptors, but those have been moved to
+ the internal-only port structure defined in ports-internal.h.
+
+ Given that we must preserve ABI compatibility in 2.0, we cannot
+ safely change this public structure without running afoul of C
+ strict aliasing rules. We cannot even change the member names.
+
+ To work around this, in this public structure, 'input_cd' has been
+ repurposed to be a pointer to the internal port structure (see
+ ports-internal.h), and 'output_cd' is now unused.
+
+ This will be cleaned up in 2.2. */
+
+ void *input_cd; /* XXX actually a pointer to scm_t_port_internal */
+ void *output_cd; /* XXX actually unused */
} scm_t_port;
\f
+/* Hey you! Yes you, reading the header file! We're going to deprecate
+ scm_ptobs in 2.2, so please don't write any new code that uses it.
+ Thanks. */
SCM_API scm_t_ptob_descriptor *scm_ptobs;
SCM_API long scm_numptob;
scm_t_off length));
SCM_API void scm_set_port_input_waiting (scm_t_bits tc, int (*input_waiting) (SCM));
SCM_API SCM scm_char_ready_p (SCM port);
-size_t scm_take_from_input_buffers (SCM port, char *dest, size_t read_len);
+SCM_API size_t scm_take_from_input_buffers (SCM port, char *dest,
+ size_t read_len);
SCM_API SCM scm_drain_input (SCM port);
SCM_API SCM scm_current_input_port (void);
SCM_API SCM scm_current_output_port (void);
SCM_API SCM scm_current_error_port (void);
+SCM_API SCM scm_current_warning_port (void);
SCM_API SCM scm_current_load_port (void);
SCM_API SCM scm_set_current_input_port (SCM port);
SCM_API SCM scm_set_current_output_port (SCM port);
SCM_API SCM scm_set_current_error_port (SCM port);
+SCM_API SCM scm_set_current_warning_port (SCM port);
SCM_API void scm_dynwind_current_input_port (SCM port);
SCM_API void scm_dynwind_current_output_port (SCM port);
SCM_API void scm_dynwind_current_error_port (SCM port);
SCM_API SCM scm_new_port_table_entry (scm_t_bits tag);
-SCM_INTERNAL void scm_i_remove_port (SCM port);
SCM_API void scm_grow_port_cbuf (SCM port, size_t requested);
SCM_API SCM scm_pt_size (void);
SCM_API SCM scm_pt_member (SCM member);
SCM_API size_t scm_c_read (SCM port, void *buffer, size_t size);
SCM_API void scm_c_write (SCM port, const void *buffer, size_t size);
SCM_API void scm_lfwrite (const char *ptr, size_t size, SCM port);
-SCM_INTERNAL void scm_lfwrite_str (SCM str, SCM port);
SCM_INTERNAL void scm_lfwrite_substr (SCM str, size_t start, size_t end,
SCM port);
SCM_API void scm_flush (SCM port);
SCM_API void scm_end_input (SCM port);
SCM_API int scm_fill_input (SCM port);
-SCM_INTERNAL void scm_unget_byte (int c, SCM port);
+SCM_API void scm_unget_bytes (const unsigned char *buf, size_t len, SCM port);
+SCM_API void scm_unget_byte (int c, SCM port);
SCM_API void scm_ungetc (scm_t_wchar c, SCM port);
SCM_API void scm_ungets (const char *s, int n, SCM port);
SCM_API SCM scm_peek_char (SCM port);
SCM_API SCM scm_set_port_column_x (SCM port, SCM line);
SCM_API SCM scm_port_filename (SCM port);
SCM_API SCM scm_set_port_filename_x (SCM port, SCM filename);
-SCM_INTERNAL const char *scm_i_get_port_encoding (SCM port);
+SCM_INTERNAL SCM scm_i_port_property (SCM port, SCM key);
+SCM_INTERNAL SCM scm_i_set_port_property_x (SCM port, SCM key, SCM value);
+SCM_INTERNAL const char *scm_i_default_port_encoding (void);
+SCM_INTERNAL void scm_i_set_default_port_encoding (const char *);
SCM_INTERNAL void scm_i_set_port_encoding_x (SCM port, const char *str);
SCM_API SCM scm_port_encoding (SCM port);
SCM_API SCM scm_set_port_encoding_x (SCM port, SCM encoding);
-SCM_INTERNAL scm_t_string_failed_conversion_handler scm_i_get_conversion_strategy (SCM port);
-SCM_INTERNAL void scm_i_set_conversion_strategy_x (SCM port,
- scm_t_string_failed_conversion_handler h);
+SCM_INTERNAL scm_t_string_failed_conversion_handler
+scm_i_default_port_conversion_handler (void);
+/* Use HANDLER as the default conversion strategy for future ports. */
+SCM_INTERNAL void
+scm_i_set_default_port_conversion_handler (scm_t_string_failed_conversion_handler);
+SCM_API int scm_slow_get_byte_or_eof (SCM port);
+SCM_API int scm_slow_peek_byte_or_eof (SCM port);
+
SCM_API SCM scm_port_conversion_strategy (SCM port);
SCM_API SCM scm_set_port_conversion_strategy_x (SCM port, SCM behavior);
SCM_API int scm_port_print (SCM exp, SCM port, scm_print_state *);
SCM_API void scm_print_port_mode (SCM exp, SCM port);
-SCM_API void scm_ports_prehistory (void);
SCM_API SCM scm_void_port (char * mode_str);
SCM_API SCM scm_sys_make_void_port (SCM mode);
SCM_INTERNAL void scm_init_ports (void);
HCoop / bpt / guile.git / blobdiff