使用lxml模块拆分xml标记

时间:2017-01-30 10:26:58

标签: python xml lxml

我正在尝试拆分标签(在一行上),以便我可以在忽略<stats>+40 Ability Power<br>+25 Magic Resist<br>+20% Cooldown Reduction<br><mana>+75% Base Mana Regen </mana></stats><br><br><unique>UNIQUE Passive:</unique> Gain 20% of the <a href='premitigation'><font color='#6666FF'><u>premitigation</u></font></a> damage dealt to champions as Blood Charges, up to <levelScale>100 - 250</levelScale> max. Healing or shielding another ally consumes charges to heal them, up to the original effect amount.<br><unique>UNIQUE Passive - Harmony:</unique> Grants bonus % Base Health Regen equal to your bonus % Base Mana Regen.<br><br><rules>(Maximum amount of Blood Charges stored is based on level. Healing amplification is applied to the total heal value.)</rules> <stats>+10% Critical Strike Chance</stats> <stats>+45 Attack Damage<br>+10% Life Steal</stats><br><br><unique>UNIQUE Passive:</unique> Basic attacks grant +6 Attack Damage and +1% Life Steal for 8 seconds on hit (effect stacks up to 5 times). <stats>+300 Health<br>+50 Attack Damage<br>+20% Cooldown Reduction</stats><br><br><unique>UNIQUE Passive:</unique> Dealing physical damage to an enemy champion Cleaves them, reducing their Armor by 5% for 6 seconds (stacks up to 6 times, up to 30%).<br><unique>UNIQUE Passive - Rage:</unique> Dealing physical damage grants 20 movement speed for 2 seconds. Assists on Cleaved enemy champions or kills on any unit grant 60 movement speed for 2 seconds instead. This Movement Speed is halved for ranged champions. 的同时在不同的行上打印不同的标签和内容。

我试图拆分的几行内容的片段。

lxml

但是当我尝试从root = etree.Element(string) 模块解析类似xml的字符串时。

ValueError: Invalid tag name "<stats>+40 Attack Damage<br>+80 Ability Power</stats><br><br><unique>UNIQUE Passive:</unique> Heal for 15% of damage dealt. This is 33% as effective for Area of Effect damage.<br><active>UNIQUE Active - Lightning Bolt:</active> Deals 250 (+30% of Ability Power) magic damage and slows the target champion's Movement Speed by 40% for 2 seconds (40 second cooldown, shared with other <font color='#9999FF'><a href='itembolt'>Hextech</a></font> items)."

它给我错误:

$(".button10").on('click', function reset() {    
    $.ajax({
        type: 'GET',
        url:RestApi,
        success:function(data3){
            var str = JSON.stringify(data3, undefined, 4);
            $("#myTextArea").html(str);
        },
    });
});

$(".button9").on('click', function reset() {
    $('#myTextArea').val('');
});

1 个答案:

答案 0 :(得分:0)

您显示的输入不是XML。 XML解析器将无法读取此内容。

使用HTML解析器,它们接受更广泛的输入。见http://lxml.de/parsing.html#parsing-html

from lxml import etree
from io import StringIO

test_string = "<stats>+40 Ability Power<br>+25 Magic Resist<br>+20% Cooldown Reduction<br><mana>+75% Base Mana Regen </mana></stats><br><br><unique>UNIQUE Passive:</unique> Gain 20% of the <a href='premitigation'><font color='#6666FF'><u>premitigation</u></font></a> damage dealt to champions as Blood Charges, up to <levelScale>100 - 250</levelScale>  max. Healing or shielding another ally consumes charges to heal them, up to the original effect amount.<br><unique>UNIQUE Passive - Harmony:</unique> Grants bonus % Base Health Regen equal to your bonus % Base Mana Regen.<br><br><rules>(Maximum amount of Blood Charges stored is based on level. Healing amplification is applied to the total heal value.)</rules>"
html_file = StringIO(test_string)

parser = etree.HTMLParser()
doc = etree.parse(html_file, parser)

print(doc)
# prints: <lxml.etree._ElementTree object at 0x03036A58>

之后,您可以使用lxml提供的所有方法搜索和修改文档树。

注意:StringIO仅在上面的示例中是必需的,以使字符串可以像文件一样使用。如果您已有文件,则不需要StringIO。只需直接使用该文件即可。

如果您实际上正在寻找网络抓取解决方案,请查看执行此操作的库。我会想到ScrapypyQuery,他们会为您完成所有解析,并提供更好的界面来访问页面上的数据。