C++11_Implementation_Plan.md

Implement C++11 Coverage

Improve code2html to correctly highlight C++11 features, including new keywords, string literal prefixes, and raw string literals.

User Review Required

Important

The parser has a fundamental bug where it doesn't flush the current word being built when it encounters a string or comment start. This causes prefixes like u8 or characters before a comment to appear after the string/comment. I will fix this as part of the C++11 implementation.

Proposed Changes

Keywords

[MODIFY] cpp.kwd

Add C++11 keywords:

• alignas, alignof, char16_t, char32_t, constexpr, decltype, noexcept, nullptr, static_assert, thread_local, final, override.

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Parser Logic

[MODIFY] parser.cpp

• Fix word flushing: Ensure keyWord is flushed (search for match and output) when entering string_literal, char_literal, or comments.
• Support String Prefixes: Modify handle_code or handle_literal to handle u8, u, U, and L prefixes correctly.
• Support Raw String Literals: Handle R"(...)" syntax. This is more complex because it uses a custom delimiter.

[MODIFY] parser.h

• Add a helper method flushKeyWord to avoid duplication.
• Potentially update Context to handle raw strings.

Verification Plan

Automated Tests

• Run ./code2html tests/test_cpp11.cpp
• Verify the output tests/test_cpp11.cpp.html for:
  • Correct keyword highlighting (blue).
  • Correct string literal highlighting (gray/original color).
  • Correct placement of prefixes (e.g., u8"..." should not become "..."u8).
  • Correct handling of raw strings R"(...)".