#FurryScript

1 messages · Page 2 of 1

harsh frost
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i need to finish jang lexer

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it doesnt support hex values

grave spire
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Rate my amazing first lexer

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From 1-67

harsh frost
grave spire
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Give me critique

harsh frost
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lemme go to my keyboard

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one sec

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how is the parser supposed to know the difference between " and '

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if im not wrong both are string

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but with different rules

grave spire
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i will split this into two cases then

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or

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i could just ignore it

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compeltely

harsh frost
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i will use orbls hxmini instead if you do that

grave spire
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does hxmini iven have interpolation checking

harsh frost
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but it works perfectly for modifying data

grave spire
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it doesnt

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even check

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the quotes

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it just removes them

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so whats the complaint

harsh frost
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im checking the code

grave spire
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ill do the same (:

harsh frost
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you know what

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both projects suck

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i will use kriptel hxon

grave spire
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bruh this is my first lexer

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and im doing it the hard way

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char by char

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instead of line by line

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im not making my own buffered reader

harsh frost
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💀💀💀💀💀💀

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💀💀💀💀💀💀💀💀💀💀💀💀💀💀💀💀💀💀💀

grave spire
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char by char works just fine

harsh frost
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yeah

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never do line by line

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tf are you saying

grave spire
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orbls is line by line

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it splits lines until its components

harsh frost
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im killing yall

grave spire
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your saying this like

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theres a book

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explaining

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how to write

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a fully functional lexer

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in haxe

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if there was

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id read it

harsh frost
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ive spent so much time studying programming languages, lexers, and parsers, and you guys come up with this crap

harsh frost
grave spire
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im doing this based on intuition and shitty logic

harsh frost
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nonono

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you know how to code

grave spire
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thats how programming works

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ah yes

harsh frost
grave spire
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idiot

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absolute idiot

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software development and programming are two different things

harsh frost
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bruuh

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bruuuuh

grave spire
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i can write code based on concepts

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but i cant design a whole system

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from scratch

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without reference

harsh frost
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ive used a rust tutorial

grave spire
harsh frost
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and applied what the tutorial says

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to haxe

grave spire
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then find a lexer

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tutorial

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fully

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functioning

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with step by step guide

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and example code

harsh frost
# grave spire then find a lexer

https://www.youtube.com/watch?v=8VB5TY1sIRo&list=PL_2VhOvlMk4UHGqYCLWc6GO8FaPl8fQTh

YouTube
tylerlaceby
How To Build A Programming Language From Scratch

This is the first part in a multipart ongoing series for building a minimal programming language in JavaScript. Today's video cover lexing and how to produce tokens needed for the parser stage.

Source code: https://github.com/tlaceby/guide-to-interpreters-series

If you want to follow along then please have a modern version of Deno installed a...

▶ Play video
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thats what i always send

grave spire
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this is just my logic

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but inside of a if statement

harsh frost
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😭

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i give up

grave spire
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im using lexer states

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to determine which chars

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to add to a string buffer

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based on conditions

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every line is a keystate

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then when it finds a =

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its a value state

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if it finds a # its a comment state

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a # cant be inside a keystate with a key

harsh frost
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your system doenst allow complex things.

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thats all what im saying

grave spire
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complex things like what

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i can always make a new state

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that state handles complex thigns

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inside of that state i can manually move the pos forward or backwards

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dependent on logic

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like []

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i can make a section state

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that appends all values inside of []

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to a sectionBuffer

harsh frost
grave spire
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inside of the value

harsh frost
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how do you will know if its a basic number like 12312312 or a hex number like 0x333

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both start with a number

grave spire
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detect if its a hex inside of appendValue

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if its start with 0x

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its mostly likely

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a hex

harsh frost
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and if not

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if a coding interviewer saw that, youd get fired, it doesnt matter if you understand complex concepts if you dont know the basics of coding

grave spire
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WHAT BASICS OF CODING

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there is no basics to a lexer

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im reading chars and converting them to tokens

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hxenv/Lexer.hx:144: 2
hxenv/Lexer.hx:144: 3
hxenv/Lexer.hx:144: 4
hxenv/Lexer.hx:144: 5
hxenv/Lexer.hx:276: Detected as hex:,819
hxenv/Lexer.hx:144: 6
hxenv/Lexer.hx:144: 7```
harsh frost
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you know, its useless talking to someone who doesnt want to listen, even alex gave you a "dude" after seeing your code

grave spire
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What do you want me to do

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I HAVE NO REFERENCE

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this is my only reference

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hxenv/Lexer.hx:144: 2
hxenv/Lexer.hx:144: 3
hxenv/Lexer.hx:144: 4
hxenv/Lexer.hx:144: 5
hxenv/Lexer.hx:144: 6
hxenv/Lexer.hx:144: 7
Main.hx:12: [Key(KEY),Equals,Value(VALUE),Comma,Comment(multiline),Newline,Value(VALUE2),Comma,Newline,Value(VALUE3),Newline,Newline,Key(KEY4),Equals,Value(VALUE4),Comment(test),Newline,Key(KEY5),Equals,Value(VALUE5),Comment(TEST),Newline,Eof]```
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it works.

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it has error handling

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its env file format

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simple syntax

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hxenv/Lexer.hx:144: 2
hxenv/Lexer.hx:93: characters 5-10 : Uncaught exception Cant have comment in multiline
hxenv/Lexer.hx:134: characters 6-22 : Called from here
hxenv/Lexer.hx:66: characters 3-13 : Called from here
Main.hx:12: characters 15-33 : Called from here```
grave spire
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"you dont know the basics of coding", "your system doesnt allow complex things"

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all vague

hoary thunder
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breaking my heart cro

harsh frost
hoary thunder
harsh frost
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do you forgive me? 🥹

hoary thunder
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yeah 🥹🥹🥹🥹

grave spire
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The lexer goes with the approach of delayed emission

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meaning it gets the context of the line

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and then builds the token based on flags

harsh frost
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niceiguess

grave spire
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for multiline support ill make it so it doesnt reset the value buffer until its no longer a multiline

harsh frost
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👍

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ihatelexers

grave spire
harsh frost
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wha

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thats my lexer

image.png
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damn how i had the energy to write thousands of lines of code

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😭

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this is my parser

image.png
grave spire
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write thousands of lines of code isnt hard

harsh frost
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i write a hundred lines a week

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sometimes a month

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that project was made in three days

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and im very happy with it

grave spire
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im so scared

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the wikapedia page of ASTs sucks

harsh frost
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yep it sucks

hoary thunder
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@harsh frost mf stealing code & comments 😔

his:
https://github.com/MonekyTheShep/HxEnv/blob/6b87692bb03e8aa24b72b0929cf2005635275f95/hxenv/Env.hx

mine:
https://github.com/hackx2/hxmini/blob/462131341df72e74f349c1328f2cdabe3a8e6258/mini/Ini.hx

GitHub
HxEnv/hxenv/Env.hx at 6b87692bb03e8aa24b72b0929cf2005635275f95 · M...

Env Parser. Contribute to MonekyTheShep/HxEnv development by creating an account on GitHub.

GitHub
hxmini/mini/Ini.hx at 462131341df72e74f349c1328f2cdabe3a8e6258 · h...

Haxelib for parsing data in the (ini/toml/cfg) format. - hackx2/hxmini

harsh frost
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dayum

hoary thunder
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this shit ain't real

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this guy loves to bitch abt me using underscores Infront of my variable names 😭

H7rscvx.png
harsh frost
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underscores are cool

hoary thunder
quiet marten
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Smh smh moneky blocked me

harsh frost
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wha