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android - 如何获取第一个 sed 的输出并将其用作第二个 sed 输入

问题描述

<acdb_ids>
    <device name="SND_DEVICE_OUT_SPEAKER" acdb_id="15"/>
    <device name="SND_DEVICE_OUT_SPEAKER_REVERSE" acdb_id="15"/>
    <!-- add by lifei for A2DP Dirac audio effect 20170413-->
    <device name="SND_DEVICE_OUT_BT_A2DP" acdb_id="10"/>
    <!-- add by lifei end-->
    <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" acdb_id="124"/>
    <device name="SND_DEVICE_IN_VOICE_REC_QMIC_FLUENCE" acdb_id="131"/>
    <device name="SND_DEVICE_IN_VOICE_REC_TMIC" acdb_id="131"/>
    <device name="SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE" acdb_id="132"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED" acdb_id="150"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED_VBAT" acdb_id="150"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_1" acdb_id="151"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_2" acdb_id="152"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_USB_HEADSET_MIC" acdb_id="133"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_MIC" acdb_id="143"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_STEREO_MIC" acdb_id="144"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_THREE_MIC" acdb_id="145"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_QUAD_MIC" acdb_id="146"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_HEADSET_MIC" acdb_id="147"/>
    <!-- #ifdef VENDOR_EDIT -->
    <!-- aditya.gunda@Multimedia, 2019/10/16, EIDQ-5951, fix low volume issue -->
    <device name="SND_DEVICE_IN_HANDSET_MIC_REC_SINGLE" acdb_id="4"/>
    <!-- #endif -->
</acdb_ids>

<bit_width_configs>
        <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" bit_width="24"/>
</bit_width_configs>

这些行在audio_platform_info .xml 中，所以我想做的是从 <acdb_ids> 中读取所有设备名称并将它们附加到 <bit_width_configs> 上。下面表示脚本执行后的预期输出。

<acdb_ids>
    <device name="SND_DEVICE_OUT_SPEAKER" acdb_id="15"/>
    <device name="SND_DEVICE_OUT_SPEAKER_REVERSE" acdb_id="15"/>
    <!-- add by lifei for A2DP Dirac audio effect 20170413-->
    <device name="SND_DEVICE_OUT_BT_A2DP" acdb_id="10"/>
    <!-- add by lifei end-->
    <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" acdb_id="124"/>
    <device name="SND_DEVICE_IN_VOICE_REC_QMIC_FLUENCE" acdb_id="131"/>
    <device name="SND_DEVICE_IN_VOICE_REC_TMIC" acdb_id="131"/>
    <device name="SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE" acdb_id="132"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED" acdb_id="150"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED_VBAT" acdb_id="150"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_1" acdb_id="151"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_2" acdb_id="152"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_USB_HEADSET_MIC" acdb_id="133"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_MIC" acdb_id="143"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_STEREO_MIC" acdb_id="144"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_THREE_MIC" acdb_id="145"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_QUAD_MIC" acdb_id="146"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_HEADSET_MIC" acdb_id="147"/>
    <!-- #ifdef VENDOR_EDIT -->
    <!-- aditya.gunda@Multimedia, 2019/10/16, EIDQ-5951, fix low volume issue -->
    <device name="SND_DEVICE_IN_HANDSET_MIC_REC_SINGLE" acdb_id="4"/>
    <!-- #endif -->
</acdb_ids>

<bit_width_configs>
    <device name="SND_DEVICE_OUT_SPEAKER" bit_width="24"/>
    <device name="SND_DEVICE_OUT_SPEAKER_REVERSE" bit_width="24"/>
    <device name="SND_DEVICE_OUT_BT_A2DP" bit_width="24"/>
    <device name="SND_DEVICE_OUT_SPEAKER_PROTECTED" bit_width="24"/>
    <device name="SND_DEVICE_IN_VOICE_REC_QMIC_FLUENCE" bit_width="24"/>
    <device name="SND_DEVICE_IN_VOICE_REC_TMIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE" bit_width="24"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED" bit_width="24"/>
    <device name="SND_DEVICE_OUT_VOICE_SPEAKER_2_PROTECTED_VBAT" bit_width="24"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_1" bit_width="24"/>
    <device name="SND_DEVICE_IN_CAPTURE_VI_FEEDBACK_MONO_2" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_USB_HEADSET_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_STEREO_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_THREE_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_QUAD_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_UNPROCESSED_HEADSET_MIC" bit_width="24"/>
    <device name="SND_DEVICE_IN_HANDSET_MIC_REC_SINGLE" bit_width="24"/>
</bit_width_configs>

所以我的问题是如何将这些输出从第一个 sed 命令附加到 <bit_width_configs> 上。

标签： androidbashsed

解决方案

这可能对您有用（GNU sed）：

sed -En '/<acdb_ids>/{:a;n;/<device/{s/ acdb.*//;H};/<\/acdb_ids/!ba;H;x;x}
         /<bit_width_configs/!b;p;n
         s/.* //;G;:b;s/^([^\n]*)(.*)"\n/\1\2 \1\n/;tb
         s/^.*\n\n(.*)\n.*/\1/p;n;p;q' file

概述：保存设备信息，打印开始标签bit_width_configs，将 bit_width 详细信息附加到详细信息行，打印它们和结束标签并退出。

打开扩展正则表达式并关闭隐式打印-En。

acdb_ids将开始标签和过滤设备信息（较少标签）匹配acdb_id到保留空间中。

匹配开始bit_width_configs标签，打印。

获取下一行并附加详细信息。

将 附加bit_width到每个详细信息行。

移除任何人工制品并打印所有细节。

获取并打印结束bit_width_configs标签。

退出处理。

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