Implement the Montgomery technique for speeding up modular

[PuTTY.git] / terminal.c

diff --git a/terminal.c b/terminal.c
index aaf8705a5f4eafab90020394f273dee7d9d085cd..ba504d439bfe9d90998a378d471a73a990428fc9 100644 (file)
--- a/terminal.c
+++ b/terminal.c
@@ -3290,8 +3290,8 @@ static void term_out(Terminal *term)
                    }
                    term->termstate = SEEN_CSI;
                } else if (c == ';') {
-                   if (++term->esc_nargs <= ARGS_MAX)
-                       term->esc_args[term->esc_nargs - 1] = ARG_DEFAULT;
+                   if (term->esc_nargs < ARGS_MAX)
+                       term->esc_args[term->esc_nargs++] = ARG_DEFAULT;
                    term->termstate = SEEN_CSI;
                } else if (c < '@') {
                    if (term->esc_query)
@@ -5136,6 +5136,31 @@ void term_scroll(Terminal *term, int rel, int where)
     term_update(term);
 }
 
+/*
+ * Scroll the scrollback to centre it on the beginning or end of the
+ * current selection, if any.
+ */
+void term_scroll_to_selection(Terminal *term, int which_end)
+{
+    pos target;
+    int y;
+    int sbtop = -sblines(term);
+
+    if (term->selstate != SELECTED)
+       return;
+    if (which_end)
+       target = term->selend;
+    else
+       target = term->selstart;
+
+    y = target.y - term->rows/2;
+    if (y < sbtop)
+       y = sbtop;
+    else if (y > 0)
+       y = 0;
+    term_scroll(term, -1, y);
+}
+
 /*
  * Helper routine for clipme(): growing buffer.
  */