Updated regex pattern for better match

[jozjan]

Fix to match markdown img tag that contains:

1. space in the filename
2. alt and title

such as:

![arduino with a photoresistor](images/arduino with a photoresistor.png "Arduino Physical Layout")

that normally renders to:

<img src="images/arduino with a photoresistor.png" alt="arduino with a photoresistor" title="Arduino Physical Layout">

[juhasch]

Thanks. Yes, I guess the regex can definitely be improved.
In your approach you removed the ability to add additional parameters like width=50px.
Could you add that again ?

[jozjan]

Hi @juhasch , can you please give me an example of such situation?

I guess the simplified regex '<img\s+src="([^"]+)"' should only match the the img tag followed with a space and the src attribute with the image uri inside the quotes. No other character inside the img tag is being matched.
If such match is found, the regex.sub() will only replace the matched string - thus not touching other possible attributes such as alt, width, etc. in the remaining part of the img tag.
Maybe I am missing something :-/

[juhasch]

OK, I took a closer look. You are right, it works as it should.
I was thinking of something like <img src="myimage.jpg" width="50%" />