pdfbuilder.py 文件源码

def lang_for_block(source,lang):
    if lang in ('py', 'python'):
        if source.startswith('>>>'):
            # interactive session
            return 'pycon'
        else:
            # maybe Python -- try parsing it
            if try_parse(source):
                return 'python'
            else: # Guess
                return lang_for_block(source,'guess')
    elif lang in ('python3', 'py3') and source.startswith('>>>'):
        # for py3, recognize interactive sessions, but do not try parsing...
        return 'pycon3'
    elif lang == 'guess':
        try:
            #return 'python'
            lexer=guess_lexer(source)
            return lexer.aliases[0]
        except Exception:
            return None
    else:
        return lang