fix PChat to String conv issues caused by missing null terminator

dexed-d/src/ddemangle.d

@@ -3,6 +3,7 @@ module ddemangle;
 import core.demangle    : demangle;
 import std.regex        : replaceAll, Captures, regex, Regex;
 import core.stdc.string : strlen;
+import std.string       : toStringz;
 
 extern(C):
 
@@ -15,7 +16,7 @@ const(char)* ddemangle(const(char)* line)
         reInit = true;
         reDemangle = regex(r"\b_?_D[0-9a-zA-Z_]+\b");
     }
-    return replaceAll!(demangleMatch)(line[0 .. line.strlen], reDemangle).ptr;
+    return replaceAll!(demangleMatch)(line[0 .. line.strlen], reDemangle).toStringz;
 }
 
 extern(D): private:

dexed-d/src/ddoc_template.d

@@ -3,7 +3,7 @@ module ddoc_template;
 import
     core.stdc.string;
 import
-    std.array, std.conv;
+    std.array, std.conv, std.string;
 import
     iz.memory, iz.sugar;
 import
@@ -65,7 +65,7 @@ public:
         c2 = plusComment ? "++" : "**";
     }
 
-    const(char)* result() { return app.data.ptr; }
+    const(char)* result() { return app.data.toStringz(); }
 
     override void visit(const(ThrowStatement) ts)
     {

dexed-d/src/halstead.d

@@ -3,7 +3,7 @@ module halstead;
 import
     core.stdc.string;
 import
-    std.algorithm, std.conv, std.json, std.meta;
+    std.algorithm, std.conv, std.json, std.meta, std.string;
 import
     std.stdio, std.ascii, std.digest.crc, std.range: iota;
 import
@@ -138,7 +138,7 @@ private final class HalsteadMetric: ASTVisitor
     {
         JSONValue js;
         js["functions"] = fs;
-        return js.toString.ptr;
+        return js.toString.toStringz();
     }
 
     override void visit(const(PragmaExpression)){}

dexed-d/src/symlist.d

@@ -4,7 +4,7 @@ import
     core.stdc.string;
 import
     std.array, std.traits, std.conv, std.json, std.format,
-    std.algorithm;
+    std.algorithm, std.string;
 import
     iz.memory: construct, destruct;
 import
@@ -157,16 +157,16 @@ final class SymbolListBuilder(ListFmt Fmt): ASTVisitor
         static if (Fmt == ListFmt.Pas)
         {
             pasStream.put(">\rend");
-            return pasStream.data.ptr;
+            return pasStream.data.toStringz;
         }
         else
         {
             JSONValue result = parseJSON("{}");
             result["items"] = json;
             version (assert)
-                return result.toPrettyString.ptr;
+                return result.toPrettyString.toStringz;
             else
-                return result.toString.ptr;
+                return result.toString.toStringz;
         }
     }
 

dexed-d/src/todos.d

@@ -25,7 +25,7 @@ extern(C) const(char)* todoItems(const(char)* joinedFiles)
                 analyze(token, fname, stream);
     }
     stream.put(">end");
-    return stream.data.ptr;
+    return stream.data.toStringz();
 }
 
 private void analyze(const(Token) token, const(char)[] fname, ref Appender!string stream)