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C Compiler from Scratch

github.com Software & code Software projects Computer science Class of 2026-03 Hall of Fame
Screenshot of github.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 6 calendar years, with breakout response in 2 of them.

submissions
11
submitters
11
observed span
2019–2026
peak thread · 66 comments
484 pts
latest 20+ return · 2026-03-24
134 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

I've been sort of working on a compiler side project for years, and my observation of the materials out there is that they all seem to get caught up in bikeshedding. Parsing just isn't that hard of a problem, and with a vague understanding of what a recursive descent parser is, just about any reasonably-skilled developer can figure out how to write a good-enough parser. EBNF, parser generators, etc. is just noise, yet this is where every compiler tutorial I've…

Very cool! I can’t imagine writing everything in C, I’m currently learning this in OCaml which seems nicer for a project like this.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
649

reference only — not used in Hall rules or ranking

Total comments
85

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2019-12-23A Compiler Writing Journey – Self-Compiling C Subsetchubot40
2020-01-06C Compiler from ScratchFirst breakout · Best threadharel48466
2020-01-06A Compiler Writing Journeyhomarp10
2020-01-07A Compiler Writing Journey: Documenting a self-compiling compiler for a C subsetyarapavan40
2020-01-08A Compiler Writing Journeyingve20
2022-07-29A Compiler Writing Journeyagomez31440
2022-08-04A Compiler Writing Journeymemorable20
2022-11-29A Compiler Writing Journeydavikr30
2024-12-20A Compiler Writing Journeyjaprozs10
2025-10-26Acwj: A Compiler Writing Journeypykello100
2026-03-24A Compiler Writing JourneyHall induction · Latest 20+ point returnibobev13419