Chubek

package lexer

import (
	"fmt"
	"patina-lang/internal/token"
	"strings"
	"unicode/utf8"
)

const EOF rune = -1

Chubek

(* Core Structure *)
HelpFile        = FirstLine, { Section | FreeContent }, [ Modeline ] ;
FirstLine       = TagDef, Tab, Description, Newline ;
Section         = Heading, SeparatorLine, { Block } ;
FreeContent     = { Block } ;

(* Headings and Separators *)
Heading         = TextLine ;
SeparatorLine   = "=", "=", "=", { "=" }, Newline ;  (* Min 3 '=' *)
ColumnHeading   = Text, " ~", Newline ;

Chubek

#define PHI 0x585f14dULL

static inline uint32_t
_skiena_hash32 (const uint8_t *msg, size_t msg_len)
{
  static uint16_t rand_map[UCHAR_MAX] = {
    0x144, 0x1ab, 0x13c, 0x028, 0x1c3, 0x107, 0x193, 0x174, 0x00c, 0x160,
    0x142, 0x0fe, 0x01f, 0x1b0, 0x198, 0x160, 0x10f, 0x185, 0x015, 0x051,
    0x057, 0x138, 0x17e, 0x199, 0x1f5, 0x01e, 0x1f2, 0x01f, 0x174, 0x0b7,
    0x085, 0x0a5, 0x200, 0x14d, 0x188, 0x168, 0x1e4, 0x1ef, 0x15c, 0x14e,

Chubek

" Superscript
iabbrev <buffer> ^0 ⁰
iabbrev <buffer> ^1 ¹
iabbrev <buffer> ^2 ²
iabbrev <buffer> ^3 ³
iabbrev <buffer> ^4 ⁴
iabbrev <buffer> ^5 ⁵
iabbrev <buffer> ^6 ⁶
iabbrev <buffer> ^7 ⁷
iabbrev <buffer> ^8 ⁸

Chubek

Understanding Grammar Notations Used in PLT Textbooks ('Cheatsheet')

Chubak Bidpaa (Based on the 3rd edition of TDB, pages 198-199)

PLT textboks often use Greek and Latin letters to denote grammatic notations such as terminal, non-terminals, and other such concepts. For a beginner (like me!) it could be rather overwhelming. So I created this cheatsheet to be used as reference for any curious person or learners, alike.

Categories

Chubek

clemore_virtdev.c is the Linux virtual keyboard driver for my key remapper, Clemore.

After compiling it with this Makefile:

obj-m += clemore_virtdev.o

all:
	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

Chubek

I made this function to be able to render manpages with bat -lman --pager=most, but compile it with GROFF instead of mandoc(1).

It's very easy to prepare mandoc(1)-compiled manpages with bat(1). All you have to do is to filter it through col -xb.

But GROFF uses ESC[..;word ESC[... sequences (aka ANSI) so it's a bit hard.

My Fish function deansify takes a file either via STDIN or --file/-f and da-ANSI-fies it tou STDOUT.

Pretty simple. Now you can do zcat (man -w <manpage>) | groff -man -Tascii | deansify | bat -lman --pager=most (I highly recommend using most(1) as your default pager!).

Chubek

Thanks to everyone who's helping me!

Progress:

• Added regex parse function.

This project is [currently] called Provisio. It's a table-driven LL(1) parser generator, targeting C, written in Perl. It also a built-in lexer generator. That's what I'm focusing on first.

I'm burned out a lil bit because I've been working on, non-stop, for several weeks. The DFA/NFA facilities have been fully written. There's even a DFA minimizer!

I don't wanna use Thompson Construction for parsing the regex. It's so 1969! The syntax of its regex is mostly-compliant with ERE. It lacks the collation classes (like [[=ll=]] but it has character classes like [[:alpha:]]. It also has trails foo/bar and flags.

Chubek

Hey. I have three aliases in Fish for listing Nerd Fonts, the list is the result of lsnedfonts-nofilter. The aliases are:

# I realize this ain't 'good' by any means
        alias lsnerdfonts-nofilter="fc-list | grep NerdFont | cut -d'/' -f6 | cut -d':' -f1 | cu
t -d'-' -f1"
        alias lsnerdfonts-all="fc-list  | grep NerdFont | sed -E 's/NerdFont(Mono|Propo)//' | un
iq | cut -d'/' -f6 | cut -d':' -f1 | cut -d'-' -f1"
        alias lsnerdfonts-propo="fc-list  | grep NerdFontPropo | sed -E 's/NerdFontPropo//' | un
iq | cut -d'/' -f6 | cut -d':' -f1 | cut -d'-' -f1"

Chubek

def lcs_diff(seq1, seq2):
    m, n = len(seq1), len(seq2)
    dp = [[0] * (n + 1) for _ in range(m + 1)]
    
    # Build the DP table
    for i in range(1, m + 1):
        for j in range(1, n + 1):
            if seq1[i - 1] == seq2[j - 1]:
                dp[i][j] = dp[i - 1][j - 1] + 1
            else: