From efc5b7e088fc219993f22dc827022b143913c1f8 Mon Sep 17 00:00:00 2001
From: Paul LeoNerd Evans <leonerd@leonerd.org.uk>
Date: Fri, 30 Nov 2012 15:36:06 +0000
Subject: Try to handle position reports -and- F3 concurrently.. somehow.. argh

---
 driver-csi.c   | 22 +++++++++++++++-------
 t/31position.c | 12 +++++++++++-
 2 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/driver-csi.c b/driver-csi.c
index f4de6a8..ae0b50d 100644
--- a/driver-csi.c
+++ b/driver-csi.c
@@ -258,19 +258,27 @@ TermKeyResult termkey_interpret_mouse(TermKey *tk, const TermKeyKey *key, TermKe
 
 /*
  * Handler for CSI R position reports
+ * A plain CSI R with no arguments is probably actually <F3>
  */
 
 static TermKeyResult handle_csi_R(TermKey *tk, TermKeyKey *key, int cmd, long *arg, int args)
 {
   switch(cmd) {
     case 'R':
-      if(args < 2)
-        return TERMKEY_RES_NONE;
-
-      key->type = TERMKEY_TYPE_POSITION;
-      termkey_key_set_linecol(key, arg[1], arg[0]);
-
-      return TERMKEY_RES_KEY;
+      switch(args) {
+        case 0:
+          key->type = TERMKEY_TYPE_FUNCTION;
+          key->code.number = 3;
+          return TERMKEY_RES_KEY;
+
+        case 2:
+          key->type = TERMKEY_TYPE_POSITION;
+          termkey_key_set_linecol(key, arg[1], arg[0]);
+          return TERMKEY_RES_KEY;
+
+        default:
+          return TERMKEY_RES_NONE;
+      }
     default:
       return TERMKEY_RES_NONE;
   }
diff --git a/t/31position.c b/t/31position.c
index bb798c6..3304643 100644
--- a/t/31position.c
+++ b/t/31position.c
@@ -7,7 +7,7 @@ int main(int argc, char *argv[])
   TermKeyKey key;
   int        line, col;
 
-  plan_tests(5);
+  plan_tests(8);
 
   tk = termkey_new_abstract("vt100", 0);
 
@@ -22,6 +22,16 @@ int main(int argc, char *argv[])
   is_int(line, 15, "line for position report");
   is_int(col,   7, "column for position report");
 
+  /* A plain CSI R is likely to be <F3> though.
+   * This is tricky :/
+   */
+  termkey_push_bytes(tk, "\e[R", 3);
+
+  is_int(termkey_getkey(tk, &key), TERMKEY_RES_KEY, "getkey yields RES_KEY for <F3>");
+
+  is_int(key.type, TERMKEY_TYPE_FUNCTION, "key.type for <F3>");
+  is_int(key.code.number, 3, "key.code.number for <F3>");
+
   termkey_destroy(tk);
 
   return exit_status();
-- 
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