XmlStarlet xml 到 csv 输出为“NaNNaNNaN”

XmlStarlet xml 到 csv 输出为“NaNNaNNaN”

我写了一个查询xmlstarlet sel -T -t -m badges/row -v "concat(@row, ',')" -n Badges.xml,输出重复如下:

NaNNaNNaN...

Badges.xml 文件中可能的行数。我正在关注这个:https://www.joyofdata.de/blog/transforming-xml-document-into-csv-using-xmlstarlet/将 xml 格式的数据转换为 CSV。有人明白这是怎么回事吗?

在此输入图像描述

编辑,以下是 XML 文件的一些示例行:

<?xml version="1.0" encoding="utf-8"?>
<badges>
 <row Id="1" UserId="1" Name="Autobiographer" Date="2016-08-02T15:56:07.133" 
  Class="3" TagBased="False" />
 <row Id="2" UserId="8" Name="Autobiographer" Date="2016-08-02T15:56:07.133" 
  Class="3" TagBased="False" />
 <row Id="3" UserId="9" Name="Autobiographer" Date="2016-08-02T15:56:07.133" 
  Class="3" TagBased="False" />
 <row Id="4" UserId="19" Name="Autobiographer" Date="2016-08-
  02T15:56:07.133" Class="3" TagBased="False" />
 <row Id="5" UserId="27" Name="Autobiographer" Date="2016-08-
  02T15:56:07.133" Class="3" TagBased="False" />

答案1

在XPATH 中@指向一个属性名称。要根据每个<row>节点的属性值生成 csv 记录,请使用以下方法:

xmlstarlet sel -T -t -m 'badges/row' -v \
'concat(@Id, ",", @UserId, ",", @Name, ",", translate(@Date," ",""), 
",", @Class, ",", @TagBased)' -n Badges.xml

输出:

1,1,Autobiographer,2016-08-02T15:56:07.133,3,False
2,8,Autobiographer,2016-08-02T15:56:07.133,3,False
3,9,Autobiographer,2016-08-02T15:56:07.133,3,False
4,19,Autobiographer,2016-08-02T15:56:07.133,3,False
5,27,Autobiographer,2016-08-02T15:56:07.133,3,False

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