Supports:
- Closure syntax: `(x, y) => z`
- Shorthand for a single argument: `x => y`
- Function syntax: `let f(x) = y`
- Capturing of variables from the environment
- Error messages for too few / many passed arguments
Does not support:
- Named arguments
- Variadic arguments with `..`
- Identifiers are now evaluated as variables instead of being plain values
- Constants like `left` or `bold` are stored as dynamic values containing the respective rust types
- We now distinguish between arrays and dictionaries to make things more intuitive (at the cost of a bit more complex parsing)
- Spans were removed from collections (arrays, dictionaries), function arguments still have spans for the top-level values to enable good diagnostics
- In addition to syntax trees there are now `Value`s, which syntax trees can be evaluated into (e.g. the tree is `5+5` and the value is `10`)
- Parsing is completely pure, function calls are not parsed into nodes, but into simple call expressions, which are resolved later
- Functions aren't dynamic nodes anymore, but simply functions which receive their arguments as a table and the layouting context
- Functions may return any `Value`
- Layouting is powered by functions which return the new `Commands` value, which informs the layouting engine what to do
- When a function returns a non-`Commands` value, the layouter simply dumps the value into the document in monospace
- Removes font weight and width warnings for now, will be added again later
- Adds a bit hacky get_first function for tuples, will be refactored soon anyway
- Use fontdock for indexing fonts and querying
- Typst binary now automatically indexes and uses system fonts in addition to a fixed font folder!
- Removes subsetting support for now (was half-finished anyways, plan is to use harfbuzz for subsetting in the future)
- Adds font width configuration support
- Problems -> Diagnostics
- Position -> Pos
- offset_spans -> Offset trait
- Size -> Length (and some more size types renamed)
- Paper into its own module
- scope::Parser -> parsing::CallParser
- Create `Decorations` alias
- Remove lots of double newlines
- Switch from f32 to f64
