From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 20 May 2010 07:16:33 +0000 (+0200)
Subject: hxtool: Add syntax error detection
X-Git-Tag: v0.13.0-rc0~452
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6c913ba5f353741fc8284f54675b26943ecc7b8b;p=thirdparty%2Fqemu.git

hxtool: Add syntax error detection

Add basic imbalance detection for STEXT/ETEXI.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---

diff --git a/hxtool b/hxtool
index 0fdbc641c64..8f655320be4 100644
--- a/hxtool
+++ b/hxtool
@@ -19,11 +19,24 @@ hxtoh()
 hxtotexi()
 {
     flag=0
+    line=1
     while read -r str; do
         case "$str" in
             HXCOMM*)
             ;;
-            STEXI*|ETEXI*) flag=$(($flag^1))
+            STEXI*)
+            if test $flag -eq 1 ; then
+                echo "line $line: syntax error: expected ETEXI, found $str" >&2
+                exit 1
+            fi
+            flag=1
+            ;;
+            ETEXI*)
+            if test $flag -ne 1 ; then
+                echo "line $line: syntax error: expected STEXI, found $str" >&2
+                exit 1
+            fi
+            flag=0
             ;;
             DEFHEADING*)
             echo "$(expr "$str" : "DEFHEADING(\(.*\))")"
@@ -32,6 +45,7 @@ hxtotexi()
             test $flag -eq 1 && echo "$str"
             ;;
         esac
+        line=$((line+1))
     done
 }