Get rid of special "EndOfBlock" format in python highlighter

Change-Id: Ie02d3ae02b2453b33a3c779307f6f44348e2d0cd
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/pythoneditor/pythonformattoken.h

@@ -42,8 +42,7 @@ enum Format {
     Format_Whitespace,
     Format_ImportedModule,
 
-    Format_FormatsAmount,
-    Format_EndOfBlock
+    Format_FormatsAmount
 };
 
 class FormatToken
@@ -55,15 +54,17 @@ public:
         : m_format(format), m_position(position), m_length(length)
     {}
 
+    bool isEndOfBlock() { return m_position == -1; }
+
     Format format() const { return m_format; }
     int begin() const { return m_position; }
     int end() const { return m_position + m_length; }
     int length() const { return m_length; }
 
 private:
-    Format m_format;
-    int m_position;
-    int m_length;
+    Format m_format = Format_FormatsAmount;
+    int m_position = -1;
+    int m_length = -1;
 };
 
 } // namespace Internal

src/plugins/pythoneditor/pythonhighlighter.cpp

@@ -117,7 +117,7 @@ int PythonHighlighter::highlightLine(const QString &text, int initialState)
 
     FormatToken tk;
     bool hasOnlyWhitespace = true;
-    while ((tk = scanner.read()).format() != Format_EndOfBlock) {
+    while (!(tk = scanner.read()).isEndOfBlock()) {
         Format format = tk.format();
         if (format == Format_Keyword) {
             QString value = scanner.value(tk);
@@ -141,7 +141,7 @@ int PythonHighlighter::highlightLine(const QString &text, int initialState)
 void PythonHighlighter::highlightImport(Scanner &scanner)
 {
     FormatToken tk;
-    while ((tk = scanner.read()).format() != Format_EndOfBlock) {
+    while (!(tk = scanner.read()).isEndOfBlock()) {
         Format format = tk.format();
         if (tk.format() == Format_Identifier)
             format = Format_ImportedModule;

src/plugins/pythoneditor/pythonscanner.cpp

@@ -50,7 +50,7 @@ FormatToken Scanner::read()
 {
     setAnchor();
     if (isEnd())
-        return FormatToken(Format_EndOfBlock, anchor(), 0);
+        return FormatToken();
 
     State state;
     QChar saved;