message: [Assembler] Simplify tokenize splitter regex
diff: @@ -83,9 +83,11 @@ protected:
  }
  virtual std::variant<Error, LineTokens> tokenize(const QString& line) const {
  - const static auto splitter = QRegularExpression(
  - R"(\t|\((?=x(?:[1-2]\d|3[0-1]|\d)|t[0-6]|a[0-7]|s(?:1[0-1]|\d)|[sgt]p|zero)|(?:x(?:[1-2]\d|3[0-1]|\d)|t[0-6]|a[0-7]|s(?:1[0-1]|\d)|[sgt]p|zero)\K\))");
  - return splitQuotes(line.split(splitter));
  + // Regex: match all empty strings (\s+) except for quote-delimitered substrings.
  + const static auto splitter = QRegularExpression(R"(\s+(?=(?:[^"]*"[^"]*")*[^"]*$))");
  + auto tokens = line.split(splitter);
  + tokens.removeAll(QStringLiteral(""));
  + return tokens;
  }
  virtual HandleDirectiveRes assembleDirective(const TokenizedSrcLine& line, bool& ok) const {
  @@ -106,7 +108,7 @@ protected:
  */
  virtual std::variant<Error, SymbolLinePair> splitSymbolsFromLine(const LineTokens& tokens, int sourceLine) const {
  if (tokens.size() == 0) {
  - return std::pair<Symbols, LineTokens>({}, tokens);
  + return {SymbolLinePair({}, tokens)};
  }
  LineTokens remainingTokens;
  @@ -118,25 +120,25 @@ protected:
  if (symbolStillAllowed) {
  const QString cleanedSymbol = QString(token).remove(':');
  if (symbols.count(cleanedSymbol) != 0) {
  - return Error(sourceLine, "Multiple definitions of symbol '" + cleanedSymbol + "'");
  + return {Error(sourceLine, "Multiple definitions of symbol '" + cleanedSymbol + "'")};
  } else {
  symbols.insert(cleanedSymbol);
  }
  } else {
  - return Error(sourceLine, "Stray ':' in line");
  + return {Error(sourceLine, "Stray ':' in line")};
  }
  } else {
  remainingTokens.append(token);
  symbolStillAllowed = false;
  }
  }
  - return std::pair<Symbols, LineTokens>(symbols, remainingTokens);
  + return {SymbolLinePair(symbols, remainingTokens)};
  }
  virtual std::variant<Error, DirectiveLinePair> splitDirectivesFromLine(const LineTokens& tokens,
  int sourceLine) const {
  if (tokens.size() == 0) {
  - return DirectiveLinePair(QString(), tokens);
  + return {DirectiveLinePair(QString(), tokens)};
  }
  LineTokens remainingTokens;
  @@ -148,7 +150,7 @@ protected:
  if (directivesStillAllowed) {
  directives.push_back(token);
  } else {
  - return Error(sourceLine, "Stray '.' in line");
  + return {Error(sourceLine, "Stray '.' in line")};
  }
  } else {
  remainingTokens.append(token);
  @@ -156,9 +158,9 @@ protected:
  }
  }
  if (directives.size() > 1) {
  - return Error(sourceLine, "Illegal multiple directives");
  + return {Error(sourceLine, "Illegal multiple directives")};
  } else {
  - return DirectiveLinePair(directives.size() == 1 ? directives[0] : QString(), remainingTokens);
  + return {DirectiveLinePair(directives.size() == 1 ? directives[0] : QString(), remainingTokens)};
  }
  }
  