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Python 清理HTML标签类似PHP的strip_tags函数功能(二)

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Release: 2016-06-23 13:48:18
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没有发现Python 有现成的类似功能模块,所以昨天写了个简单的 strip_tags 但还有些问题,今天应用到采集上时进行了部分功能的完善,

1. 对自闭和标签处理

2. 以及对标签参数的过滤


def strip_tags(html, save_tags=None, save_attrs=None):    result = []    start = []    data = []    # 特殊的自闭和标签, 按 HTML5 的规则, 如 <br> <img  alt="Python 清理HTML标签类似PHP的strip_tags函数功能(二)" > <wbr> 不再使用 /> 结尾    special_end_tags = [        'area', 'base', 'br', 'col', 'embed', 'hr',        'img', 'input', 'keygen', 'link', 'meta', 'param',        'source', 'track', 'wbr'    ]    def starttag(tag, attrs):        if tag not in save_tags:            return        start.append(tag)        my_attrs = []        if attrs:            for attr in attrs:                if save_attrs and attr[0] not in save_attrs:                    continue                my_attrs.append(attr[0] + '="' + attr[1] + '"')            if my_attrs:                my_attrs = ' ' + (' '.join(my_attrs))            else:                my_attrs = ''        else:            my_attrs = ''        result.append('')    def endtag(tag):        if start and tag == start[len(start) - 1]:            # 特殊自闭和标签按照HTML5规则不加反斜杠直接尖括号结尾            if tag not in special_end_tags:                result.append('' + tag + '>')    parser = HTMLParser()    parser.handle_data = result.append    if save_tags:        parser.handle_starttag = starttag        parser.handle_endtag = endtag    parser.feed(html)    parser.close()    for i in range(0, len(result)):        tmp = result[i].rstrip('\n')        tmp = tmp.lstrip('\n')        if tmp:            data.append(tmp)    return ''.join(data)</wbr>
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