alsamixer amixer到python字典格式

Question

alsamixer使用以下语法将其数据存储在文件中：

control.2 = {
    iface : MIXER
    name : 'DSP1 Rate'
    value:'16kHz'
    comment = {
        access 'read write'
        type ENUMERATED
        count 1
        item.0 'SYNCCLK rate'
        item.1 '8kHz'
        item.2 '16kHz'
        item.3 'ASYNCCLK rate'
    }

有没有一种将其转换为python字典的快速方法？允许从python脚本中读取它？

我尝试过使用pyalsaaudio和alsaaudio.mixers()一起查看控件的名称，但是使用alsa文件，您还可以看到可以为该控件设置的可用数据。

Answer 1

我整个下午都在做这个。希望它能解决你的问题：

#!/usr/bin/env python2.7
import re
import json


def jsonify(config='/var/lib/alsa/asound.state'):
    g = re.MULTILINE
    p1 = re.compile(r'((?:^|"[^"]+"|\'[^\']+\'|[\s:{}])+)([^\s{}]+)', g)
    p2 = re.compile(r'^(\s*\"[\w.]+"(?!\s*[\:]))', g)
    p3 = re.compile(r'([\"\}])\n(?!\s*\})', g)

    with open(config) as fh:
        context = fh.read()
        # replace all the quote with quotes
        context = context.replace("'", '"')
        # surround the name:value objects by quotes
        context = re.sub(p1, r'\g<1>"\g<2>"', context)
        # add a trailing comma after the values assignment
        context = re.sub(p2, r'\g<1>:', context)
        # add a colon before the values as a delimiter
        context = re.sub(p3, r'\g<1>,\n', context)

    return json.loads('{\n%s\n}' % context[:-2])


if __name__ == '__main__':
    print 'you should use it as module :D'