Log Forensics: Patterns Without Regex
Parse raw log lines with Lua's own pattern matching to pull out structured fields and count errors per user, no regex library anywhere in sight.
What you'll be able to build
Parse raw log lines with Lua's own pattern matching to pull out structured fields and count errors per user, no regex library anywhere in sight. Along the way you pick up real, transferable Lua skills, not just this one project:
- multiline string literals [[ ]]
- string.gmatch with multiple captures
- Lua patterns (%u, %a, %s, character classes)
- counting into a frequency table
- filtering during iteration
- sorting keys for stable reports
A course like this one
Yours is built from your own placement, so module count and depth will differ. This map shows what a intermediate-level Lua learner building Log Forensics actually gets.
- Module 1: Values, tables, and output5 lessons
Builds the script for your log forensics.
- Module 2: Tables as data: arrays, records, and lookups5 lessons
Builds the table model workflow for your log forensics.
- Module 3: Control flow and truthiness5 lessons
Builds the function that powers your log forensics.
- Module 4: Functions, varargs, and errors5 lessons
Builds the reusable module for your log forensics.
- Module 5: Metatables, coroutines, and program design5 lessons
Builds the metatable behaviour for your log forensics.
- Module 6: Packaging and release readiness3 lessons
Builds the release package for your log forensics.
How the lessons actually work
Every lesson has you predict what a piece of Lua code will output before you run it, then run it for real in your browser and fix what you got wrong. Each module ends in a challenge gate with hidden tests, so you can't advance until your code actually works. The course closes with a capstone that assembles everything into Log Forensics, and a runnable proof page tied to your own code.
Common questions
How long does the Log Forensics: Patterns Without Regex course take?
about 7 hours, across 6 modules and 28 lessons, at roughly 15 minutes per lesson. Your own course may run shorter or longer, since it's sized to your placement result, not a fixed template.
Do I need experience?
Some. This is an intermediate-tier Lua project, so it assumes you're comfortable with Lua basics and pushes past them.
How much does it cost?
$15 one-time, no subscription. The first module is free, so you can see exactly how the course teaches before you pay for the rest.