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author | Michael Gran <spk121@yahoo.com> | 2009-08-25 07:54:37 -0700 |
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committer | Michael Gran <spk121@yahoo.com> | 2009-08-25 07:54:37 -0700 |
commit | 889975e51accb80491af76fc5db980aeb3edd342 (patch) | |
tree | 43b57c4388abcf86e97f8f413abc4ebbcaeac1a8 /libguile/inline.h | |
parent | 9db8cf1634ca9a91cb88b2532f7b87f2502b4abd (diff) | |
download | guile-889975e51accb80491af76fc5db980aeb3edd342.tar.gz |
Add full Unicode capability to ports and the default reader
Ports are given two additional properties: a character encoding and
a conversion failure strategy. These properties have getters and setters.
The new properties are used to convert any locale text to/from the
internal representation of strings.
If unspecified, ports use a default value. The default value of these
properties is held in a fluid. The default character encoding can be
modified by calling setlocale.
ISO-8859-1 is treated specially. Since it is a native encoding of
strings, it can be processed more quickly. Source code is assumed to be
ISO-8859-1 unless otherwise specified. The encoding of a source code
file can be given as 'coding: XXXXX' in a magic comment at the top of a
file.
The C functions that deal with encoding often use a null pointer
as shorthand for the native Latin-1 encoding, for efficiency's sake.
* test-suite/tests/encoding-iso88591.test: new tests
* test-suite/tests/encoding-iso88597.test: new tests
* test-suite/tests/encoding-utf8.test: new tests
* test-suite/tests/encoding-escapes.test: new tests
* test-suite/tests/numbers.test: declare 'binary' encoding
* test-suite/tests/ports.test: declare 'binary' encoding
* test-suite/tests/r6rs-ports.test: declare 'binary' encoding
* module/system/base/compile.scm (compile-file): use source-code
file's self-declared encoding when compiling files
* libguile/strports.c: store string ports in locale encoding
(scm_strport_to_locale_u8vector, scm_call_with_output_locale_u8vector)
(scm_open_input_locale_u8vector, scm_get_output_locale_u8vector):
new functions
* libguile/strings.h: new declaration for scm_i_string_contains_char
* libguile/strings.c (scm_i_string_contains_char): new function
(scm_from_stringn, scm_to_stringn): use NULL for Latin-1
(scm_from_locale_stringn, scm_to_locale_stringn): respect character
encoding of input and output ports
* libguile/read.h: declaration for scm_scan_for_encoding
* libguile/read.c:
(read_token): now takes scheme string instead of C string/length
(read_complete_token): new function
(scm_read_sexp, scm_read_number, scm_read_mixed_case_symbol)
(scm_read_number_and_radix, scm_read_quote, scm_read_semicolon_comment)
(scm_read_srfi4_vector, scm_read_bytevector, scm_read_guile_bit_vector)
(scm_read_scsh_block_comment, scm_read_commented_expression)
(scm_read_extended_symbol, scm_read_sharp_extension, scm_read_shart)
(scm_read_expression): use scm_t_wchar for char type, use read_complete_token
(scm_scan_for_encoding): new function to find a file's character encoding
(scm_file_encoding): new function to find a port's character encoding
* libguile/rdelim.c: don't unpack strings
* libguile/print.h: declaration for modified function
scm_i_charprint
* libguile/print.c: use locale when printing characters and
strings
(scm_i_charprint): input parameter is now scm_t_wchar
(scm_simple_format): don't unpack strings
* libguile/posix.h: new declaration for scm_setbinary.
* libguile/posix.c (scm_setlocale): set default and stdio port
encodings based on the locale's character encoding
(scm_setbinary): new function
* libguile/ports.h (scm_t_port): add encoding and failed
conversion handler to port type. Declarations for new or modified
functions scm_getc, scm_unget_byte, scm_ungetc,
scm_i_get_port_encoding, scm_i_set_port_encoding_x,
scm_port_encoding, scm_set_port_encoding_x,
scm_i_get_conversion_strategy, scm_i_set_conversion_strategy_x,
scm_port_conversion_strategy, scm_set_port_conversion_strategy_x.
* libguile/ports.c: assign the current ports to zero on startup so
we can see if they've been set.
(scm_current_input_port, scm_current_output_port,
scm_current_error_port): return #f if the port is not yet
initialized
(scm_new_port_table_entry): set up a new port's encoding and
illegal sequence handler based on the thread's current defaults
(scm_i_remove_port): free port encoding name when port is removed
(scm_i_mode_bits_n): now takes a scheme string instead of a c
string and length. All callers changed.
(SCM_MBCHAR_BUF_SIZE): new const
(scm_getc): new function, since the scm_getc in inline.h is now
scm_get_byte_or_eof. This pulls one codepoint from a port.
(scm_lfwrite_substr, scm_lfwrite_str): now uses port's encoding
(scm_unget_byte): new function, incorportaing the low-level functionality
of scm_ungetc
(scm_ungetc): uses scm_unget_byte
* libguile/numbers.h (scm_t_wchar): compilation order problem with
scm_t_wchar being use in functions in multiple headers. Forward
declare scm_t_wchar.
* libguile/load.c (scm_primitive_load): scan for file encoding at
top of file and use it to set the load port's encoding
* libguile/inline.h (scm_get_byte_or_eof): new function
incorporating most of the functionality of scm_getc.
* libguile/fports.c (fport_fill_input): now returns scm_t_wchar
* libguile/chars.h (scm_t_wchar): avoid compilation order problem
with declaration of scm_t_wchar
Diffstat (limited to 'libguile/inline.h')
-rw-r--r-- | libguile/inline.h | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/libguile/inline.h b/libguile/inline.h index cb908581d..b37834598 100644 --- a/libguile/inline.h +++ b/libguile/inline.h @@ -86,7 +86,7 @@ SCM_API void scm_array_handle_set (scm_t_array_handle *h, ssize_t pos, SCM val); SCM_API int scm_is_pair (SCM x); -SCM_API int scm_getc (SCM port); +SCM_API int scm_get_byte_or_eof (SCM port); SCM_API void scm_putc (char c, SCM port); SCM_API void scm_puts (const char *str_data, SCM port); @@ -290,7 +290,7 @@ scm_is_pair (SCM x) SCM_C_EXTERN_INLINE #endif int -scm_getc (SCM port) +scm_get_byte_or_eof (SCM port) { int c; scm_t_port *pt = SCM_PTAB_ENTRY (port); @@ -310,27 +310,6 @@ scm_getc (SCM port) c = *(pt->read_pos++); - switch (c) - { - case '\a': - break; - case '\b': - SCM_DECCOL (port); - break; - case '\n': - SCM_INCLINE (port); - break; - case '\r': - SCM_ZEROCOL (port); - break; - case '\t': - SCM_TABCOL (port); - break; - default: - SCM_INCCOL (port); - break; - } - return c; } |