CopyAsMathML: encode "<" and ">" as "<" and ">" (valid XML).

wxMaxima-developers · Jan 4, 2025 · 19212a0 · 19212a0
1 parent 17fdad3
commit 19212a0
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diff --git a/NEWS.md b/NEWS.md
@@ -7,6 +7,7 @@
 - If an empty worksheet is saved as wxmx, allow it to be read again (#1978).
   The generated content.xml was empty, which was no valid XML.
 - Fix compiling with clang++.
+- CopyAsMathML: encode "<" and ">" as "&lt;" and "&gt;" (valid XML).
 
 # 24.11.0
 

diff --git a/src/cells/TextCell.cpp b/src/cells/TextCell.cpp
@@ -1073,6 +1073,12 @@ wxString TextCell::ToMathML() const {
         return wxS("<mo>") + text + wxS("</mo>\n");
       }
     }
+    if (text == wxS("<")) {
+      return wxS("<mo>&lt;</mo>");
+    }
+    if (text == wxS(">")) {
+      return wxS("<mo>&gt;</mo>");
+    }
     else
       return wxS("<mi>") + text + wxS("</mi>\n");
   case TS_NUMBER: