first working version - nasty, but mostly works

diff --git a/src/hci/mucurses/kb.c b/src/hci/mucurses/kb.c
new file mode 100644 (file)
index 0000000..48de14c
--- /dev/null
+++ b/src/hci/mucurses/kb.c
@@ -0,0 +1,101 @@
+#include <curses.h>
+#include <stddef.h>
+#include "core.h"
+
+/** @file
+ *
+ * MuCurses keyboard input handling functions
+ */
+
+#define INPUT_BUFFER_LEN 80
+
+bool echo_on = FALSE;
+bool delay = FALSE;
+
+/**
+ *
+ */
+int has_key ( int ch ) {
+       return TRUE;
+}
+
+/**
+ * Push a character back onto the FIFO
+ *
+ * @v ch       char to push to head of input stream
+ * @ret rc     return status code
+ */
+int ungetch ( int ch ) {
+       stdscr->scr->pushc( stdscr->scr, ch );
+       return OK;
+}
+
+/**
+ * Pop a character from the FIFO into a window
+ *
+ * @v *win     window in which to echo input
+ * @ret ch     char from input stream
+ */
+int wgetch ( WINDOW *win ) {
+       int ch;
+       if ( win == NULL )
+               return ERR;
+
+       ch = win->scr->popc( win->scr );
+
+       if ( echo_on ) {
+               if ( ch == KEY_LEFT || ch == KEY_BACKSPACE ) {
+                       if ( win->curs_x == 0 ) {
+                               wmove( win, --(win->curs_y), win->width - 1 );
+                               wdelch( win );
+                       } else {
+                               wmove( win, win->curs_y, --(win->curs_x) );
+                               wdelch( win );
+                       }
+               } else if ( ch >= 0401 && ch <= 0633 ) {
+                       beep();
+               } else {
+                       _wputch( win, (chtype)( ch | win->attrs ), WRAP );
+               }
+       }
+
+       return ch;
+}
+
+/**
+ * Read at most n characters from the FIFO into a window
+ *
+ * @v *win     window in which to echo input
+ * @v *str     pointer to string in which to store result
+ */
+int wgetnstr ( WINDOW *win, char *str, int n ) {
+       char *str_start;
+       int c;
+
+       if ( n < 0 )
+               return ERR;
+
+       str_start = str;
+
+       for ( ; ( c = wgetch(win) ) && n; n-- ) {
+               if ( n == 1 ) { // last character must be a newline...
+                       if ( c == '\n' ) {
+                               *str = '\0';
+                       } else { // ...otherwise beep and wait for one
+                               beep();
+                               ++n;
+                               continue;
+                       }
+               } else if ( c == '\n' ) {
+                       *str = '\0';
+                       break;
+               } else {
+                       if ( c == KEY_LEFT || c == KEY_BACKSPACE ) {
+                               if ( ! ( str == str_start ) )
+                                       str--;
+                       } else { *str = c; str++; }
+               }
+       }
+
+       return OK;
+}