From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 20 Jul 2012 15:04:15 +0000 (-0400)
Subject: [Indic] Don't let ZWNJ at the end of syllable affect base search
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a9e45c32e4a0d6da33c52f8427aa694e57f52eb9;p=platform%2Fupstream%2FlibHarfBuzzSharp.git

[Indic] Don't let ZWNJ at the end of syllable affect base search

Fixes a few Devanagari, half of remaining Kannada failures, quarter for
Telugu, and others slightly improved or unchanged.
---

diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index a3f20b1..ffae430 100644
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -530,8 +530,12 @@ initial_reordering_consonant_syllable (const hb_ot_map_t *map, hb_buffer_t *buff
 	  base = i;
 	}
 	else
-	  if (is_joiner (info[i]))
+	{
+	  /* A ZWJ at the end of syllable, or any ZWJ/ZWNJ in other places, stop the base
+	   * search (to request explicit half or halant forms. */
+	  if (is_joiner (info[i]) && (i + 1 < end || info[i].indic_category() == OT_ZWJ))
 	    break;
+	}
       } while (i > limit);
     }
     else