From 215b97b7e270641166f3b764e87ebf7bdfb851e0 Mon Sep 17 00:00:00 2001
From: jfa <jfa@opencascade.com>
Date: Wed, 19 Sep 2007 09:15:55 +0000
Subject: [PATCH] NPAL16955: syntax storage in a python supervisiongraph. Fix
 for already sreened single quote and other meta-symbols.

---
 src/GraphBase/DataFlowBase_ComputingNode.cxx | 25 ++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/GraphBase/DataFlowBase_ComputingNode.cxx b/src/GraphBase/DataFlowBase_ComputingNode.cxx
index 51b902f..b97d441 100644
--- a/src/GraphBase/DataFlowBase_ComputingNode.cxx
+++ b/src/GraphBase/DataFlowBase_ComputingNode.cxx
@@ -35,11 +35,32 @@ using namespace std;
 static string protectQuotes (const string theText)
 {
   string aRes (theText);
-  for (unsigned int pos = 0; pos < aRes.size(); pos+=2) {
+  unsigned int pos;
+
+  // screen back slash
+  for (pos = 0; pos < aRes.size(); pos++) {
+    pos = aRes.find("\\", pos);
+    if (pos < 0 || pos > aRes.size()) break;
+
+    aRes.insert(pos, "\\");
+    pos++;
+
+    // screen symbol after back slash (except single quote, which will be processed below)
+    if (pos + 1 < aRes.size() && aRes[pos + 1] != '\'') {
+      aRes.insert(pos + 1, "\\");
+      pos++;
+    }
+  }
+
+  // screen single quote
+  for (pos = 0; pos < aRes.size(); pos++) {
     pos = aRes.find("'", pos);
     if (pos < 0 || pos > aRes.size()) break;
-    aRes.replace(pos, 1, "\\\'");
+
+    aRes.insert(pos, "\\");
+    pos++;
   }
+
   return aRes;
 }
 
-- 
2.39.2