Fix bug #10263 with assertion violation using telugu-itrans input method.

 src/xdisp.c (RECORD_MAX_MIN_POS): Use IT->cmp_it.charpos only if
 IT->string is nil.

2 files changed, 7 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 2e1a3b19b1d..94db6c68605 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-10  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (RECORD_MAX_MIN_POS): Use IT->cmp_it.charpos only if
+        IT->string is nil.  (Bug#10263)
+
 2011-12-10  Jan Djärv  <jan.h.d@swipnet.se>
 
         * nsterm.h (x_free_frame_resources): Declare.
diff --git a/src/xdisp.c b/src/xdisp.c
index 87bbded9208..41d393a65a7 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -18887,7 +18887,8 @@ display_line (struct it *it)
 #define RECORD_MAX_MIN_POS(IT)                                  \
   do                                                            \
     {                                                           \
-      int composition_p = (IT)->what == IT_COMPOSITION;         \
+      int composition_p = !STRINGP ((IT)->string)               \
+        && ((IT)->what == IT_COMPOSITION);                      \
       EMACS_INT current_pos =                                   \
         composition_p ? (IT)->cmp_it.charpos                    \
                       : IT_CHARPOS (*(IT));                     \