Python pygments.lexer 模块，Lexer() 实例源码

我们从Python开源项目中，提取了以下3个代码示例，用于说明如何使用pygments.lexer.Lexer()。

项目：azure-cli-shell    作者：Azure    | 项目源码 | 文件源码

def get_lexers(main_lex, exam_lex, tool_lex):
    """ gets all the lexer wrappers """
    if not main_lex:
        return None, None, None
    lexer = None
    if issubclass(main_lex, PromptLex):
        lexer = main_lex
    elif issubclass(main_lex, PygLex):
        lexer = PygmentsLexer(main_lex)

    if exam_lex:
        if issubclass(exam_lex, PygLex):
            exam_lex = PygmentsLexer(exam_lex)
    if tool_lex:
        if issubclass(tool_lex, PygLex):
            tool_lex = PygmentsLexer(tool_lex)
    return lexer, tool_lex

项目：azure-cli    作者：Azure    | 项目源码 | 文件源码

def get_lexers(main_lex, None
    lexer = None
    if main_lex:
        if issubclass(main_lex, PromptLex):
            lexer = main_lex
        elif issubclass(main_lex, PygLex):
            lexer = PygmentsLexer(main_lex)

    if exam_lex:
        if issubclass(exam_lex, PygLex):
            exam_lex = PygmentsLexer(exam_lex)

    if tool_lex:
        if issubclass(tool_lex, PygLex):
            tool_lex = PygmentsLexer(tool_lex)

    return lexer, tool_lex

项目：cauldron    作者：sernst    | 项目源码 | 文件源码

def fetch_lexer(
        source: str,
        language: str = None,
        filename: str = None,
        mime_type: str = None
) -> Lexer:
    """

    :param source:
    :param language:
    :param filename:
    :param mime_type:
    :return:
    """

    environ.abort_thread()

    try:
        if language:
            return get_lexer_by_name(language, stripall=True)
    except ClassNotFound:
        pass

    if filename:
        try:
            return get_lexer_for_filename(filename, stripall=True)
        except ClassNotFound:
            pass

        try:
            return guess_lexer_for_filename(filename, source, stripall=True)
        except ClassNotFound:
            pass

    try:
        if mime_type:
            return get_lexer_for_mimetype(mime_type, stripall=True)
    except ClassNotFound:
        pass

    try:
        return guess_lexer(source, stripall=True)
    except ClassNotFound:
        return TextLexer()