diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-12-21 07:02:55 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-12-21 07:02:55 +0000 |
commit | e48ea0a5f330ce694e5d6e28a3b4825be13910df (patch) | |
tree | 623f37d5acf019af9868527458fb0de57e639f66 /io.c | |
parent | 12df6cf7cece79a1d5d99037b35b6a28c3c3296c (diff) | |
download | ruby-e48ea0a5f330ce694e5d6e28a3b4825be13910df.tar.gz |
* io.c (rb_io_s_read): allow specifying encoding explicitly.
* io.c (rb_io_binmode): specifies encoding to ASCII-8BIT (binary).
* io.c (rb_io_s_read): IO should be in binary mode when offset is
specified.
* encoding.c (rb_to_encoding): returns default encoding if no
corresponding encoding found.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 34 |
1 files changed, 26 insertions, 8 deletions
@@ -2289,7 +2289,7 @@ rb_io_ungetc(VALUE io, VALUE c) GetOpenFile(io, fptr); rb_io_check_readable(fptr); if (NIL_P(c)) return Qnil; - enc = rb_enc_get(io); + enc = fptr->enc ? fptr->enc : rb_default_external_encoding(); if (FIXNUM_P(c)) { int cc = FIX2INT(c); char buf[16]; @@ -2842,18 +2842,19 @@ rb_io_sysread(int argc, VALUE *argv, VALUE io) VALUE rb_io_binmode(VALUE io) { -#if defined(_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) || defined(__EMX__) rb_io_t *fptr; GetOpenFile(io, fptr); if (!(fptr->mode & FMODE_BINMODE) && READ_DATA_BUFFERED(fptr)) { rb_raise(rb_eIOError, "buffer already filled with text-mode content"); } +#if defined(_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) || defined(__EMX__) if (0 <= fptr->fd && setmode(fptr->fd, O_BINARY) == -1) rb_sys_fail(fptr->path); - fptr->mode |= FMODE_BINMODE; #endif + fptr->mode |= FMODE_BINMODE; + fptr->enc = rb_default_encoding(); return io; } @@ -5629,10 +5630,14 @@ io_s_read(struct foreach_arg *arg) /* * call-seq: * IO.read(name, [length [, offset]] ) => string + * IO.read(name, encoding) => string * * Opens the file, optionally seeks to the given offset, then returns * <i>length</i> bytes (defaulting to the rest of the file). * <code>read</code> ensures the file is closed before returning. + * If the second argument is a string or an encoding object, the encoding + * of the result string is set to that encoding. Otherwise the encoding + * will be default external encoding. * * IO.read("testfile") #=> "This is line one\nThis is line two\nThis is line three\nAnd so on...\n" * IO.read("testfile", 20) #=> "This is line one\nThi" @@ -5642,16 +5647,29 @@ io_s_read(struct foreach_arg *arg) static VALUE rb_io_s_read(int argc, VALUE *argv, VALUE io) { - VALUE fname, offset; + rb_encoding *enc = 0; + VALUE fname, arg1, offset; struct foreach_arg arg; - rb_scan_args(argc, argv, "12", &fname, NULL, &offset); + rb_scan_args(argc, argv, "12", &fname, &arg1, &offset); FilePathValue(fname); - arg.argc = argc > 1 ? 1 : 0; - arg.argv = argv + 1; + if (argc == 2 && (enc = rb_to_encoding(arg1))) { + arg.argc = 0; + } + else { + arg.argc = argc > 1 ? 1 : 0; + arg.argv = argv + 1; + } arg.io = rb_io_open(RSTRING_PTR(fname), "r"); if (NIL_P(arg.io)) return Qnil; - if (!NIL_P(offset)) { + if (enc) { + rb_io_t *fptr; + + GetOpenFile(arg.io, fptr); + fptr->enc = enc; + } + else if (!NIL_P(offset)) { + rb_io_binmode(arg.io); rb_io_seek(arg.io, offset, SEEK_SET); } return rb_ensure(io_s_read, (VALUE)&arg, rb_io_close, arg.io); |