Building a Resilient Parser: Creating Syntax Trees and Diagnostics During Holiday Break
By
birdculture
Baker's choice. Dense with flavour, light on filler.
Summary
The author describes creating a toy parser during Christmas break, following a Resilient LL Parsing Tutorial approach. The parser focuses on producing syntax trees and diagnostics rather than bailing on first errors, though the author notes practical pitfalls like infinite loops/recursion that can occur with resilient parsing methods.
Key quotes
· 3 pulledI find myself writing yet another toy parser, as one does during a Christmas break.
Not because I need resilience, but mostly because I find producing a syntax tree and a collection of diagnostics a more natural fit for the problem than bailing out on the first error.
One practical pitfall with the approach is infinite loops/recursion.
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