xrandr-verbose-parse

parse the output of the xrandr --verbose command

This module was based on substack's xrandr parser

example

var parse = require('xrandr-verbose-parse');
var exec = require('child_process').exec;
 
exec('xrandr --verbose', function (err, stdout) {
    var query = parse(stdout);
    console.log(JSON.stringify(query, null, 2));
});

the xrandr --verbose command produced this output:

Screen 0: minimum 320 x 200, current 1080 x 1920, maximum 2048 x 2048
HDMI-1 connected 1080x1920+0+0 (0x44) right (normal left inverted right x axis y axis) 477mm x 268mm
    Identifier: 0x42
    Timestamp:  96798461
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:    
    CRTC:       2
    CRTCs:      2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
    EDID: 
        00ffffffffffff001e6dd75801010101
        0115010380301b78ea9535a159579f27
        0e5054a54b00714f8180818fb3000101
        010101010101023a801871382d40582c
        4500dd0c1100001e000000fd00384b1e
        530f000a202020202020000000fc0049
        50533232340a202020202020000000ff
        000a2020202020202020202020200189
        02031df14a900403011412051f101323
        0907078301000065030c001000023a80
        1871382d40582c4500dd0c1100001e01
        1d8018711c1620582c2500dd0c110000
        9e011d007251d01e206e285500dd0c11
        00001e8c0ad08a20e02d10103e9600dd
        0c110000180000000000000000000000
        000000000000000000000000000000c2
  1920x1080 (0x44) 148.500MHz +HSync +VSync *current +preferred
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
  1920x1080 (0x45) 148.500MHz +HSync +VSync
        h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  56.25KHz
        v: height 1080 start 1084 end 1089 total 1125           clock  50.00Hz

and the parsed result is:

{
  "HDMI-1": {
    "connected": true,
    "orientation": "normal",
    "modes": [{
        "name": "1920x1080",
        "width": "1920",
        "height": "1080",
        "rate": 148.5,
        "optionals": "+HSync +VSync ",
        "current": true,
        "preferred": true,
        "dimensions": {
            "vertical": {
                "width": "1080",
                "start": "1084",
                "end": "1089",
                "total": "1125",
                "clock": 60
            },
            "horizontal": {
                "width": "1920",
                "start": "2008",
                "end": "2052",
                "total": "2200",
                "skew": "0",
                "clock": 67.5
            }
        }
    }],
    "index": 0,
    "width": 1920,
    "height": 1080,
    "left": 0,
    "top": 0
   }
}

methods

var parse = require('xrandr-verbose-parse')

parse(xrandrOutput)

Return the parsed output from a string full of the output from xrandr, xrandrOutput.

The return object is keyed by each output name.

install

With npm do:

npm install xrandr-verbose-parse

license

MIT