X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/04dbb6467be8f564f380bd9a1106fbdecbd26a98..f7035880664b0989ba37df99956b556c322d50a7:/src/html/m_pre.cpp

diff --git a/src/html/m_pre.cpp b/src/html/m_pre.cpp
index f87983853a..43b3b597b5 100644
--- a/src/html/m_pre.cpp
+++ b/src/html/m_pre.cpp
@@ -31,6 +31,38 @@
 
 FORCE_LINK_ME(m_pre)
 
+// replaces '\t', ' ' and '\n' with HTML markup:
+static wxString LINKAGEMODE HtmlizeWhitespaces(const wxString& str)
+{
+    wxString out;
+    size_t i = 0, j = 0, len = str.Len();
+    for (i = 0; i < len; i++)
+    {
+        switch (str[i])
+        {
+            case wxT('<'):
+                while (i < len && str[i] != wxT('>'))
+                    out << str[i++];
+                out << wxT('>');
+                break;
+            case wxT(' '):
+                out << wxT("&nbsp;");
+                break;
+            case wxT('\n'):
+                out << wxT("<br>");
+                break;
+            case wxT('\t'):
+                for (j = 8 - i%8; j > 0; j--) out << wxT("&nbsp;");
+                break;
+            default:
+                out << str[i];
+                break;
+        }
+    }
+    return out;
+}
+
+
 //-----------------------------------------------------------------------------
 // The list handler:
 //-----------------------------------------------------------------------------
@@ -60,20 +92,14 @@ TAG_HANDLER_BEGIN(PRE, "PRE")
         c = m_WParser->OpenContainer();
         c->SetAlignHor(wxHTML_ALIGN_LEFT);
 
-        wxString src, srcMid;
-
-        src = *m_WParser->GetSource();
-        srcMid = src.Mid(tag.GetBeginPos(),
-                         tag.GetEndPos1() - tag.GetBeginPos());
-        srcMid.Replace(wxT("\t"), wxT("        "));
-        srcMid.Replace(wxT(" "), wxT("&nbsp;"));
-        srcMid.Replace(wxT("\n"), wxT("<br>"));
-
+        wxString srcMid =
+            m_WParser->GetSource()->Mid(tag.GetBeginPos(),
+                                        tag.GetEndPos1() - tag.GetBeginPos());
         // It is safe to temporarily change the source being parsed,
         // provided we restore the state back after parsing
-        m_Parser->SetSource(srcMid);
+        m_Parser->SetSourceAndSaveState(HtmlizeWhitespaces(srcMid));
         m_Parser->DoParsing();
-        m_Parser->SetSource(src);
+        m_Parser->RestoreState();
 
         m_WParser->CloseContainer();
         c = m_WParser->OpenContainer();