feat(interlaced): add interlaced boolean in mode objects

Author: Lionel Penaud

README.md

@@ -1,5 +1,55 @@
 # node-xrandr
 
-## Allow parsing of xrandr output
+An xrandr output parser
 
+## Usage
 
+```
+import xrandrParser from 'xrandr';
+
+exec('xrandr', (err, stdout) => {
+  console.log(xrandrParser(stdout));
+});
+```
+
+## Output
+
+```
+{
+  "DP1": {
+    "connected": false,
+    "modes": []
+  },
+  "HDMI1": {
+    "connected": true,
+    "modes": [
+      {
+        "current": true,
+        "native": true,
+        "height": 1080,
+        "rate": 60,
+        "width": 1920
+      },
+      {
+        "height": 1080,
+        "rate": 60,
+        "width": 1920,
+        "interlaced": true
+      },
+      {
+        "height": 1050,
+        "rate": 60,
+        "width": 1680
+      }
+    ]
+  },
+  "HDMI2": {
+    "connected": false,
+    "modes": []
+  },
+  "VIRTUAL1": {
+    "connected": false,
+    "modes": []
+  }
+}
+```

src/xrandr.js

@@ -39,6 +39,7 @@ export default function xrandrParser(input) {
         height: parseInt(parts[2], 10),
         rate: parseFloat(parts[3], 10)
       };
+      if (/^[0-9]+i$/.test(parts[2])) mode.interlaced = true;
       if (parts[4] === '+' || parts[5] === '+') mode.native = true;
       if (parts[4] === '*' || parts[5] === '*') mode.current = true;
       result[lastInterface].modes.push(mode);

test/fixtures/output1.json

@@ -16,7 +16,8 @@
       {
         "height": 1080,
         "rate": 60,
-        "width": 1920
+        "width": 1920,
+        "interlaced": true
       },
       {
         "height": 1050,
@@ -76,7 +77,8 @@
       {
         "height": 576,
         "rate": 50,
-        "width": 720
+        "width": 720,
+        "interlaced": true
       },
       {
         "height": 480,

test/fixtures/output3.json

@@ -15,7 +15,8 @@
       {
         "height": 1080,
         "rate": 60,
-        "width": 1920
+        "width": 1920,
+        "interlaced": true
       },
       {
         "height": 1050,
@@ -75,6 +76,7 @@
       },
       {
         "height": 576,
+        "interlaced": true,
         "rate": 50,
         "width": 720
       },