Method syntaxHighlight

generator/annotator.cpp:987–1143

This function is inspired From clang::html::SyntaxHighlight() from HTMLRewrite.cpp * from the clang 3.1 from The LLVM Compiler Infrastructure * distributed under the University of Illinois Open Source * Adapted to the codebrowser generator. Also used to parse the comments. * The tags names have been changed, and we make a difference between different kinds of * keywords */

 * keywords
 */
void Annotator::syntaxHighlight(Generator &generator, clang::FileID FID, clang::Sema &Sema) {
    using namespace clang;

    const clang::Preprocessor &PP = Sema.getPreprocessor();
    const clang::SourceManager &SM = getSourceMgr();
    const llvm::MemoryBuffer *FromFile = SM.getBuffer(FID);
    Lexer L(FID, FromFile, SM, getLangOpts());
    const char *BufferStart = FromFile->getBufferStart();
    const char *BufferEnd = FromFile->getBufferEnd();

    // Inform the preprocessor that we want to retain comments as tokens, so we
    // can highlight them.
    L.SetCommentRetentionState(true);

    // Lex all the tokens in raw mode, to avoid entering #includes or expanding
    // macros.
    Token Tok;
    L.LexFromRawLexer(Tok);

    while (Tok.isNot(tok::eof)) {
        // Since we are lexing unexpanded tokens, all tokens are from the main
        // FileID.
        unsigned TokOffs = SM.getFileOffset(Tok.getLocation());
        unsigned TokLen = Tok.getLength();
        switch (Tok.getKind()) {
            default: break;
            case tok::identifier:
                llvm_unreachable("tok::identifier in raw lexing mode!");
            case tok::raw_identifier: {
                // Fill in Result.IdentifierInfo and update the token kind,
                // looking up the identifier in the identifier table.
                PP.LookUpIdentifierInfo(Tok);
                // If this is a pp-identifier, for a keyword, highlight it as such.
                switch (Tok.getKind()) {
                    case tok::identifier:
                        break;

                    case tok::kw_auto:
                    case tok::kw_char:
                    case tok::kw_const:
                    case tok::kw_double:
                    case tok::kw_float:
                    case tok::kw_int:
                    case tok::kw_long:
                    case tok::kw_register:
//                    case tok::kw_restrict:  // ???  (type or not)
                    case tok::kw_short:
                    case tok::kw_signed:
                    case tok::kw_static:
                    case tok::kw_unsigned:
                    case tok::kw_void:
                    case tok::kw_volatile:
                    case tok::kw_bool:
                    case tok::kw_mutable:
                    case tok::kw_wchar_t:
                    case tok::kw_char16_t:
                    case tok::kw_char32_t:
                        generator.addTag("em", {}, TokOffs, TokLen);