Game
Robot Unlock
12 years ago

The long journey from character to AST... begins elsewhere


Since we’re in full compiler-compiler season I thought it would be appropriate for me to also provide a more educational example. This example illustrates how a very rudimentary* compiler works. In more detail, it shows what happens to your code after it’s been chopped into nice tokens. Then, it shows how, based on these tokens and the language’s grammar an AST is built and then decorated and, finally, how this tree is fed to an interpreter and results start popping up.

By rudimentary I mean that the language consists of simple arithmetic expressions. Below, you can find the compiler-demo. Just type stuff and be amazed!

If you want to find out more about the inner workings of this nifty thing, check this very nicely written article on CodeProject.

<div> Your input code:
7 + pi * (x - 10)
The environment:
{ “x” : 5, “pi” : 3 }
Output:
</div>



0 comments

Loading...

Next up

This Satuday we invite to watch another #speedpainting of our artist Daniel Faiad.

How great is this scene of #Pecaminosa?

#ScreenShotSaturday | #IndieDev | #DigitalArt

Bandana Dee the Dream Friend

"Thanks guys for endless hours of fun." 👍

(My first fan art. Read the article, please.)

#sonic #mario #photoshop

Successful landing

#screenshotsaturday

Today I was setting up the location of the first boss. His name is "Father" and he is the first of the Patagonians. His task is to guard the road to the House.🛡🗡 Bookmark pre-launch page🔖🔖🔖

https://www.kickstarter.com/projects/rdvindiegame/the-patagonian…

Protege el conocimiento, salva la historia. Guardian of Lore es un platformer 2D en el que debes luchar para mantener viva la memoria de la mitología latinoamericana. El juego llegará a Steam el 18 de mayo: https://steam.pm/app/1211740 #ScreenshotSaturday

Strange Umbrella

"Day to Day" (also check spud out here he's a great guy and writer: https://soundcloud.com/spudward)

Explosive domino effect