[hackers] [st] fix cursor handling when alt screen is disabled || q@c9x.me

[git]

commit b8d6171cb00c28e4c90e58e101554097003b59d3
Author: q...@c9x.me <q...@c9x.me>
Date:   Wed Apr 9 20:37:23 2014 +0200

    fix cursor handling when alt screen is disabled
    
    I don't like this alt screen thing, but when
    allowaltscreen == 0, the cursor is still saved
    and restored after calling 'less' (or 'man').
    
    This patch makes allowaltscreen == 0 usable.

diff --git a/st.c b/st.c
index ced72ff..70caf82 100644
--- a/st.c
+++ b/st.c
@@ -1855,7 +1855,10 @@ tsetmode(bool priv, bool set, int *args, int narg) {
                                MODBIT(term.mode, set, MODE_8BIT);
                                break;
                        case 1049: /* swap screen & set/restore cursor as xterm 
*/
+                               if (!allowaltscreen)
+                                       break;
                                tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+                               /* FALLTHRU */
                        case 47: /* swap screen */
                        case 1047:
                                if (!allowaltscreen)