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匹配 3 个模式（2 个静态，1 个变量）并更改变量 1

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匹配 3 个模式（2 个静态，1 个变量）并更改变量 1

我一生都无法解决这个问题，以为我已经解决了，但没有

我有一个 XML 文件，其中包含如下所示的条目

<compat-change description="Flag {@link android.content.Context#BIND_INCLUDE_CAPABILITIES} is used to pass while-in-use capabilities from client process to bound service. In targetSdkVersion R and above, if client is a TOP activity, when this flag is present, bound service gets all while-in-use capabilities; when this flag is not present, bound service gets no while-in-use capability from client." enableAfterTargetSdk="29" id="136274596" name="PROCESS_CAPABILITY_CHANGE_ID"/>

我需要匹配 id 和名称（始终是静态值并且以相同的顺序排列），但更改 Sdk 值（这是可变的）

Sdk="29" id="136274596" name="PROCESS_CAPABILITY"

我确实尝试过

sed -i '/Sdk=\"[0-9]\+\".*id="143937733".*name="PROCESS_CAPABILITY"/ {s/Sdk=\"[0-9]\+\"/Sdk=\"0\"/1;}'

任何建议都非常感激

答案1

您最好使用适当的 XML 工具xmlstarlet，例如

xmlstarlet ed -u '
  //compat-change[@id="136274596"][starts-with(@name,"PROCESS_CAPABILITY")]/@enableAfterTargetSdk
' -v 0 file.xml

前任。

$ xmlstarlet ed -u '//compat-change[@id="136274596"][starts-with(@name,"PROCESS_CAPABILITY")]/@enableAfterTargetSdk' -v 0 file.xml
<?xml version="1.0"?>
<compat-change description="Flag {@link android.content.Context#BIND_INCLUDE_CAPABILITIES} is used to pass while-in-use capabilities from client process to bound service. In targetSdkVersion R and above, if client is a TOP activity, when this flag is present, bound service gets all while-in-use capabilities; when this flag is not present, bound service gets no while-in-use capability from client." enableAfterTargetSdk="0" id="136274596" name="PROCESS_CAPABILITY_CHANGE_ID"/>

看如何在 XMLStarlet 中过滤多个属性？

答案2

使用sed

$ sed -E 's/(Sdk=")[^"]*(" id="136274596" name="PROCESS_CAPABILITY)/\10\2/' input_file
<compat-change description="Flag {@link android.content.Context#BIND_INCLUDE_CAPABILITIES} is used to pass while-in-use capabilities from client process to bound service. In targetSdkVersion R and above, if client is a TOP activity, when this flag is present, bound service gets all while-in-use capabilities; when this flag is not present, bound service gets no while-in-use capability from client." enableAfterTargetSdk="0" id="136274596" name="PROCESS_CAPABILITY_CHANGE_ID"/>

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