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readline.c: initialize before rl_refresh_line

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* ext/readline/readline.c (readline_s_refresh_line): initialize
  before rl_refresh_line(), as some function make the internal
  state non-clean but rl_refresh_line() does not re-initialize it.
  [ruby-core:43957] [Bug #6232]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49244 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-01-14 06:43:50 +00:00
parent 4d426fc2e0
commit 095886b572
3 changed files with 49 additions and 17 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Wed Jan 14 15:43:48 2015 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/readline/readline.c (readline_s_refresh_line): initialize
before rl_refresh_line(), as some function make the internal
state non-clean but rl_refresh_line() does not re-initialize it.
[ruby-core:43957] [Bug #6232]
Tue Jan 13 21:59:24 2015 Michal Papis <mpapis@gmail.com>
* tool/rbinstall.rb (gem): fix changing permissions of installed

47
ext/readline/readline.c
View file

@ -359,6 +359,34 @@ clear_rl_outstream(void)
readline_outstream = Qfalse;
}
static void
prepare_readline(void)
{
static int initialized = 0;
if (!initialized) {
rl_initialize();
initialized = 1;
}
if (readline_instream) {
rb_io_t *ifp;
rb_io_check_initialized(ifp = RFILE(rb_io_taint_check(readline_instream))->fptr);
if (ifp->fd < 0) {
clear_rl_instream();
rb_raise(rb_eIOError, "closed readline input");
}
}
if (readline_outstream) {
rb_io_t *ofp;
rb_io_check_initialized(ofp = RFILE(rb_io_taint_check(readline_outstream))->fptr);
if (ofp->fd < 0) {
clear_rl_outstream();
rb_raise(rb_eIOError, "closed readline output");
}
}
}
/*
* call-seq:
* Readline.readline(prompt = "", add_hist = false) -> string or nil
@ -460,23 +488,7 @@ readline_readline(int argc, VALUE *argv, VALUE self)
prompt = RSTRING_PTR(tmp);
}
if (readline_instream) {
rb_io_t *ifp;
rb_io_check_initialized(ifp = RFILE(rb_io_taint_check(readline_instream))->fptr);
if (ifp->fd < 0) {
clear_rl_instream();
rb_raise(rb_eIOError, "closed readline input");
}
}
if (readline_outstream) {
rb_io_t *ofp;
rb_io_check_initialized(ofp = RFILE(rb_io_taint_check(readline_outstream))->fptr);
if (ofp->fd < 0) {
clear_rl_outstream();
rb_raise(rb_eIOError, "closed readline output");
}
}
prepare_readline();
#ifdef _WIN32
rl_prep_terminal(1);
@ -1549,6 +1561,7 @@ readline_s_get_filename_quote_characters(VALUE self, VALUE str)
static VALUE
readline_s_refresh_line(VALUE self)
{
prepare_readline();
rl_refresh_line(0, 0);
return Qnil;
}

12
test/readline/test_readline.rb
View file

@ -448,6 +448,18 @@ class TestReadline < Test::Unit::TestCase
Readline::HISTORY.clear
end if !/EditLine/n.match(Readline::VERSION)
def test_refresh_line
bug6232 = '[ruby-core:43957] [Bug #6232] refresh_line after set_screen_size'
with_temp_stdio do |stdin, stdout|
replace_stdio(stdin.path, stdout.path) do
assert_ruby_status(%w[-rreadline -], <<-'end;', bug6232)
Readline.set_screen_size(40, 80)
Readline.refresh_line
end;
end
end
end if Readline.respond_to?(:refresh_line)
private
def replace_stdio(stdin_path, stdout_path)