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halfassed hint support in readline code

master
Daniel Kolesa 2016-09-03 00:49:31 +01:00
parent 78d7ab73bd
commit 1af9144656
1 changed files with 22 additions and 0 deletions
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22
tools/edit_readline.hh
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@ -45,10 +45,32 @@ static char **ln_complete(char const *buf, int, int) {
}
#endif
#ifdef CS_REPL_HAS_HINTS
void ln_hint() {
CsCommand *cmd = get_hint_cmd(rl_line_buffer);
if (!cmd) {
rl_redisplay();
return;
}
ostd::String old = rl_line_buffer;
ostd::String args = old;
args += " [";
fill_cmd_args(args, cmd->get_args());
args += "] ";
rl_extend_line_buffer(args.size());
rl_replace_line(args.data(), 0);
rl_redisplay();
rl_replace_line(old.data(), 0);
}
#endif
static void init_lineedit(ostd::ConstCharRange) {
#ifdef CS_REPL_HAS_COMPLETE
rl_attempted_completion_function = ln_complete;
#endif
#ifdef CS_REPL_HAS_HINTS
rl_redisplay_function = ln_hint;
#endif
}
static ostd::Maybe<ostd::String> read_line(CsSvar *pr) {