diff options
Diffstat (limited to 'ext/readline/readline.c')
| -rw-r--r-- | ext/readline/readline.c | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/ext/readline/readline.c b/ext/readline/readline.c index 5e78af4b07..140bd7f578 100644 --- a/ext/readline/readline.c +++ b/ext/readline/readline.c @@ -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; } |