implement image width (percent) in pandoc markdown

[rwst]

To support image width specification in input languages like LaTeX,
a way to specify that value in pandoc markdown would be needed.
It will be sufficient to somehow give a percentage of the text width
as an integer between 1 and 100.

Proposed possibilities are (which would be best?):

![Caption](/path/to/file)@50
![Caption](/path/to/file @50)
![Caption]@50(/path/to/file)

No value assumes the default 100.

[rwst]

Depends on jgm/pandoc-types#3

[jgm]

Please see #261 and the wiki page linked there. How best to implement image width in markdown is a longstanding issue; there are some ideas discussed there.

[rwst]

Oh well, at least I have a working solution for myself.
Do what you want with it.

[shrutikapoor08]

Hi rwst, how did you implement the image size function? I am trying to do something similar in a python SCons file that is pretty much like a gpp preprocessor.

[mpickering]

Discussion continues on #261