From 6412b323860e9eb351efd46c57ea65ebd56b2823 Mon Sep 17 00:00:00 2001
From: Colin Snover
Date: Sun, 11 Dec 2016 22:15:04 -0600
Subject: SCI32: Fix incorrect parsing of empty |f| text escape code

This sequence is used in Hoyle5 when viewing the rules for a game.
---
 engines/sci/graphics/text32.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/engines/sci/graphics/text32.cpp b/engines/sci/graphics/text32.cpp
index 7375fdeffd..181dabc9a8 100644
--- a/engines/sci/graphics/text32.cpp
+++ b/engines/sci/graphics/text32.cpp
@@ -505,12 +505,12 @@ int16 GfxText32::getTextWidth(const uint index, uint length) const {
 
 			if (length > 0 && currentChar == 'f') {
 				GuiResourceId fontId = 0;
-				do {
+				while (length > 0 && *text >= '0' && *text <= '9') {
 					currentChar = *text++;
 					--length;
 
 					fontId = fontId * 10 + currentChar - '0';
-				} while (length > 0 && *text >= '0' && *text <= '9');
+				}
 
 				if (length > 0) {
 					font = _cache->getFont(fontId);
-- 
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