gmi-lexer

This is a simple project of a Gemtext lexer in Lua.

This isn't robust: if you give it unexpected types, you'll get undefined behavior (it'll probably just error out).

I made this because i wasn't feeling okay, and i use programming as a coping mechanism.

using

Lexer.TypeId is an "enum" containing string keys that distinguish what type of line / thing something is as an Element.
Element is the superclass of all line types, they are logical types only and are defined in LuaLS annotations. All elements have the type field, one of TypeId.
Lexer.iterFromIter(function() -> string | nil) -> function() Element | nil returns an iterator that works on the output of another iterator, like io.lines.
Lexer.iterFromString(string) -> function() Element | nil returns an iterator that lexes a whole string, entire thing as one singular string.
Lexer.iterFromLines(string[]) -> function() Element | nil returns an iterator that lexes an array of individual lines.
Additionally, see lexer.lua for info on individual types
Lexer.version is a major point minor version string. i don't think anyone would want to use this for realsies but hey.

example

I also made a thing that reinterprets the stream of elements and outputs either a debug printout (with arg --lexer) or formatted nicely (80 column, with colors (unless with arg --no-style)). Run lua cli.lua for a demonstration.

hibiii/gmi-lexer

gmi-lexer

using

example