I've the following XML (consider it as normal text) :
<TextView
android:layout_width="15dp"
android:layout_height="match_parent"
android:textSize="1.5sp" />
I'm using the following code to extract numbers, for example 15 and 1.5:
let largeOutputResult = inputXML.replace(/(\d+)(sp|dp)/g, (_,num,end) => `${num*1.5}${end}`);
The issue I found is when I run the code, it extracts 15, 1 and 5, not 1.5, how I can fix that?
Thank you.
Include the decimal point in your regex (and say all the digits before it are also optional):
const text = `\
<ImageView
android:layout_width="15dp"
android:layout_height="match_parent"
android:layout_margin="1.5dp"
/>`;
const output = text.replace(/(\d*\.?\d+)(sp|dp)/g, (_, num, end) => `${num * 1.5}${end}`);
console.log(output);You could also get a match only without groups.
\d*\.?\d+(?=[sd]p\b)
Explanation
\d*\.?\d+ Match optional digits, optional dot and 1+ digits (if you don't want to match only a leading dot only, then you can use \d+(?:\.\d+)?(?= Positive lookahead
[sd]p\b Match either the words sp or dp to the right) close lookaheadconst inputXML = `<ImageView
android:layout_width="15dp"
android:layout_height="match_parent"
android:layout_margin="1.5dp"
/>`;
const largeOutputResult = inputXML.replace(/\d*\.?\d+(?=[sd]p\b)/g, m => m * 1.5);
console.log(largeOutputResult);