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* io.c (rb_io_s_pipe): now takes up to two arguments. allow its

external/internal encoding by Encoding objects.

* io.c (rb_io_set_encoding): new method to set encoding of the IO.

* io.c (argf_set_encoding): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14626 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2007-12-24 18:17:35 +00:00
parent e3215a7342
commit 29595e23d7
2 changed files with 92 additions and 22 deletions

View file

@ -1,3 +1,12 @@
Tue Dec 25 03:16:05 2007 Yukihiro Matsumoto <matz@ruby-lang.org>
* io.c (rb_io_s_pipe): now takes up to two arguments. allow its
external/internal encoding by Encoding objects.
* io.c (rb_io_set_encoding): new method to set encoding of the IO.
* io.c (argf_set_encoding): ditto.
Tue Dec 25 03:08:53 2007 NAKAMURA Usaku <usa@ruby-lang.org>
* pack.c (pack_pack): use NUM2LONG instead of NUM2INT.

105
io.c
View file

@ -4800,7 +4800,8 @@ rb_io_s_for_fd(int argc, VALUE *argv, VALUE klass)
return io;
}
static int binmode = 0;
static int argf_binmode = 0;
static rb_encoding *argf_enc, *argf_enc2;
static VALUE
argf_forward(int argc, VALUE *argv)
@ -4926,7 +4927,14 @@ next_argv(void)
}
current_file = prep_io(fr, FMODE_READABLE, rb_cFile, fn);
}
if (binmode) rb_io_binmode(current_file);
if (argf_binmode) rb_io_binmode(current_file);
if (argf_enc) {
rb_io_t *fptr;
GetOpenFile(current_file, fptr);
fptr->enc = argf_enc;
fptr->enc2 = argf_enc2;
}
}
else {
next_p = 1;
@ -5597,19 +5605,41 @@ io_new_instance(VALUE args)
return rb_class_new_instance(2, (VALUE*)args+1, *(VALUE*)args);
}
io_encoding_set(rb_io_t *fptr, int argc, VALUE v1, VALUE v2)
{
if (argc == 2) {
fptr->enc2 = rb_to_encoding(v1);
fptr->enc = rb_to_encoding(v2);
}
else if (argc == 1) {
VALUE tmp = rb_check_string_type(v1);
if (!NIL_P(tmp)) {
mode_enc(fptr, StringValueCStr(tmp));
}
else {
fptr->enc = rb_to_encoding(v1);
}
}
}
/*
* call-seq:
* IO.pipe([encoding]) -> array
* IO.pipe -> array
* IO.pipe(encoding) -> array
* IO.pipe(encoding1, encoding2) -> array
*
* Creates a pair of pipe endpoints (connected to each other) and
* returns them as a two-element array of <code>IO</code> objects:
* <code>[</code> <i>read_file</i>, <i>write_file</i> <code>]</code>. Not
* available on all platforms.
*
* If optional argument is specified, read string from pipe is tagged
* If an optional argument is specified, read string from pipe is tagged
* with the encoding specified. If encoding is a comma separated two
* encoding names "A:B", the read string is converted from encoding A
* to encoding B, then tagged with B.
* (external encoding) to encoding B (internal encoding), then tagged
* with B. If two optional arguments are specified, those must be
* encoding objects, and the first one is the external encoding, and the
* second one is the internal encoding.
*
* In the example below, the two processes close the ends of the pipe
* that they are not using. This is not just a cosmetic nicety. The
@ -5646,9 +5676,10 @@ rb_io_s_pipe(int argc, VALUE *argv, VALUE klass)
return Qnil; /* not reached */
#else
int pipes[2], state;
VALUE r, w, args[3], estr, tmp;
VALUE r, w, args[3], v1, v2;
rb_io_t *fptr;
rb_scan_args(argc, argv, "01", &estr);
rb_scan_args(argc, argv, "02", &v1, &v2);
if (pipe(pipes) == -1)
rb_sys_fail(0);
@ -5661,18 +5692,8 @@ rb_io_s_pipe(int argc, VALUE *argv, VALUE klass)
close(pipes[1]);
rb_jump_tag(state);
}
if (argc == 1) {
rb_io_t *fptr;
GetOpenFile(r, fptr);
tmp = rb_check_string_type(estr);
if (!NIL_P(tmp)) {
mode_enc(fptr, StringValueCStr(tmp));
}
else {
fptr->enc = rb_to_encoding(estr);
}
}
GetOpenFile(r, fptr);
io_encoding_set(fptr, argc, v1, v2);
args[1] = INT2NUM(pipes[1]);
args[2] = INT2FIX(O_WRONLY);
w = rb_protect(io_new_instance, (VALUE)args, &state);
@ -5930,6 +5951,32 @@ rb_io_internal_encoding(VALUE io)
return rb_enc_from_encoding(io_read_encoding(fptr));
}
/*
* call-seq:
* io.set_encoding(enc) => io
* io.set_encoding(enc1, enc2) => io
*
* If single argument is specified, read string from pipe is tagged
* with the encoding specified. If encoding is a comma separated two
* encoding names "A:B", the read string is converted from encoding A
* (external encoding) to encoding B (internal encoding), then tagged
* with B. If two arguments are specified, those must be encoding
* objects, and the first one is the external encoding, and the
* second one is the internal encoding.
*/
static VALUE
rb_io_set_encoding(int argc, VALUE *argv, VALUE io)
{
rb_io_t *fptr;
VALUE v1, v2;
rb_scan_args(argc, argv, "11", &v1, &v2);
GetOpenFile(io, fptr);
io_encoding_set(fptr, argc, v1, v2);
return io;
}
static VALUE
argf_external_encoding(void)
{
@ -5942,6 +5989,18 @@ argf_internal_encoding(void)
return rb_io_internal_encoding(current_file);
}
static VALUE
argf_set_encoding(int argc, VALUE *argv, VALUE io)
{
rb_io_t *fptr;
rb_io_set_encoding(argc, argv, current_file);
GetOpenFile(io, fptr);
argf_enc = fptr->enc;
argf_enc2 = fptr->enc2;
return io;
}
static VALUE
argf_tell(void)
{
@ -6228,9 +6287,9 @@ argf_file(void)
}
static VALUE
argf_binmode(void)
argf_binmode_m(void)
{
binmode = 1;
argf_binmode = 1;
next_argv();
ARGF_FORWARD(0, 0);
rb_io_binmode(current_file);
@ -6520,6 +6579,7 @@ Init_IO(void)
rb_define_method(rb_cIO, "external_encoding", rb_io_external_encoding, 0);
rb_define_method(rb_cIO, "internal_encoding", rb_io_internal_encoding, 0);
rb_define_method(rb_cIO, "set_encoding", rb_io_set_encoding, -1);
rb_define_variable("$stdin", &rb_stdin);
rb_stdin = prep_stdio(stdin, FMODE_READABLE, rb_cIO, "<STDIN>");
@ -6567,7 +6627,7 @@ Init_IO(void)
rb_define_singleton_method(argf, "pos=", argf_set_pos, 1);
rb_define_singleton_method(argf, "eof", argf_eof, 0);
rb_define_singleton_method(argf, "eof?", argf_eof, 0);
rb_define_singleton_method(argf, "binmode", argf_binmode, 0);
rb_define_singleton_method(argf, "binmode", argf_binmode_m, 0);
rb_define_singleton_method(argf, "filename", argf_filename, 0);
rb_define_singleton_method(argf, "path", argf_filename, 0);
@ -6581,6 +6641,7 @@ Init_IO(void)
rb_define_singleton_method(argf, "external_encoding", argf_external_encoding, 0);
rb_define_singleton_method(argf, "internal_encoding", argf_internal_encoding, 0);
rb_define_singleton_method(argf, "set_encoding", argf_set_encoding, -1);
rb_global_variable(&current_file);
rb_define_readonly_variable("$FILENAME", &filename);