# include <readline/readline.h>
#elif defined(HAVE_READLINE_H)
# include <readline.h>
+#else
+# error "You don't seem to have readline.h"
+# error "No HAVE_READLINE_READLINE_H or HAVE_READLINE_H defined"
#endif
#if defined(HAVE_READLINE_HISTORY_H)
# include <readline/history.h>
#elif defined(HAVE_HISTORY_H)
# include <history.h>
+#else
+# error "You don't seem to have history.h"
+# error "No HAVE_READLINE_HISTORY_H or HAVE_HISTORY_H defined"
+#endif
+
+#ifdef HANDLE_MULTIBYTE
+# include <mbswidth.h>
#endif
#define RL_READLINE_NAME "Abook"
static int rl_x, rl_y;
static WINDOW *rl_win;
+static bool rl_cancelled;
+
static void
rl_refresh()
{
- /*refresh();*/
+ /* refresh(); */
wrefresh(rl_win);
}
+#ifdef HANDLE_MULTIBYTE
+static int
+rline_calc_point()
+{
+ return (int)mbsnwidth(rl_line_buffer, rl_point, 0);
+}
+#endif
+
static void
rline_update()
-{
+{
+#ifdef HANDLE_MULTIBYTE
+ int real_point = rline_calc_point() + rl_x;
+#else
int real_point = rl_point + rl_x;
-
+#endif
+
if(real_point > (COLS - 1))
mvwaddnstr(rl_win, rl_y, rl_x,
rl_line_buffer + (1 + real_point - COLS),
rl_refresh();
}
-void
+static void
rline_compdisp(char **matches, int n, int max_len)
{
+ /* dummy */
+}
+
+static void
+rline_prep_terminal(int dummy)
+{
+#if (RL_VERSION_MAJOR == 4 && RL_VERSION_MINOR > 2) || (RL_VERSION_MAJOR > 4)
+ /* nothing */
+#else
/*
- * dummy
+ * #warning is an extension. Not all compilers support it.
*/
+# ifdef __GNUC__
+# warning "You seem to have rather old readline version or \
+non-GNU version of it. If you have problems please use \
+GNU readline 4.3 or newer. \
+GNU readline versions 4.0, 4.1 and 4.2 should be OK despite \
+of this warning."
+# endif
+ /*
+ * this kludge avoids older readline libraries to print a newline
+ */
+ extern int readline_echoing_p;
+ readline_echoing_p = 0;
+#endif
+ raw();
+ keypad(rl_win, FALSE);
}
static void
-abook_rl_init(int use_completion)
+rline_deprep_terminal(void)
+{
+ cbreak();
+ keypad(rl_win, TRUE);
+}
+
+static int
+rl_cancel(int dummy1, int dummy2)
+{
+ rl_cancelled = TRUE;
+
+ rl_done = 1;
+
+ return 0;
+}
+
+static void
+abook_rl_init(bool use_completion)
{
rl_readline_name = RL_READLINE_NAME;
-
+
+#if RL_VERSION_MAJOR >= 4
rl_already_prompted = 1;
-
+#endif
+ rl_catch_sigwinch = 0;
+ rl_erase_empty_line = 0;
+
rl_redisplay_function = rline_update;
rl_completion_display_matches_hook = rline_compdisp;
-
+ rl_prep_term_function = rline_prep_terminal;
+ rl_deprep_term_function = rline_deprep_terminal;
+
rl_unbind_function_in_map(rl_clear_screen, rl_get_keymap());
+ rl_unbind_function_in_map(rl_reverse_search_history, rl_get_keymap());
+ rl_unbind_function_in_map(rl_re_read_init_file, rl_get_keymap());
- if(use_completion)
+ if(use_completion) {
rl_bind_key('\t', rl_menu_complete);
- else {
+ } else {
rl_unbind_function_in_map(rl_complete, rl_get_keymap());
rl_unbind_function_in_map(rl_menu_complete, rl_get_keymap());
}
+ rl_bind_key('g' & 31, rl_cancel); /* C-g */
+
clear_history();
-}
+
+ rl_cancelled = FALSE;
+}
char *
-abook_readline(WINDOW *w, int y, int x, char *s, int limit, int use_completion)
+abook_readline(WINDOW *w, int y, int x, char *s, bool use_completion)
{
- char *ret = NULL;
+ char *ret;
- rl_win = w;
abook_rl_init(use_completion);
- wmove(rl_win, rl_y = y, rl_x = x);
+ wmove(rl_win = w, rl_y = y, rl_x = x);
rl_refresh();
if(s && *s)
add_history(s);
-
+
ret = readline(NULL);
+ if(rl_cancelled && ret) {
+ free(ret);
+ ret = NULL;
+ }
+
return ret;
}