Reading WAD files - sector sizes, vertex coordinates

[Pechudin]

Hello, is there a way to read a WAD file? I would be interested in a way to output a list of sectors with their sizes, or a data list which would say which vertex belongs to which sector (which would let me find the sector sizes in units squared - which is ultimately what I want). I looked at SLADE and I see tables with lists of linedefs and which vertices belong to it, but no which linedefs belong to which sectors (well, some lines to two sectors I guess). Is there a way to parlay this to a list of sectors and their sizes?

 

I guess there'd be complications with joined sectors. Also I think this would require me to familiarize myself with the structure of a WAD, and stuff like 'seg', 'subsector' and other stuff I see in SLADE.

[boris]

Everything about the formats is documented here: https://doomwiki.org/wiki/WAD

 

Also UDB comes with a script the computes area of the selected sectors.