Tidy up library

5 files changed, 0 insertions, 537 deletions

diff --git a/library/src/utility/color.rs b/library/src/utility/color.rs
deleted file mode 100644
index 8bb12334..00000000
--- a/library/src/utility/color.rs
+++ /dev/null
@@ -1,66 +0,0 @@
-use std::str::FromStr;
-
-use crate::prelude::*;
-
-/// Create a grayscale color.
-pub fn luma(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Component(luma) = args.expect("gray component")?;
-    Ok(Value::Color(LumaColor::new(luma).into()))
-}
-
-/// Create an RGB(A) color.
-pub fn rgb(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    Ok(Value::Color(
-        if let Some(string) = args.find::<Spanned<EcoString>>()? {
-            match RgbaColor::from_str(&string.v) {
-                Ok(color) => color.into(),
-                Err(msg) => bail!(string.span, msg),
-            }
-        } else {
-            let Component(r) = args.expect("red component")?;
-            let Component(g) = args.expect("green component")?;
-            let Component(b) = args.expect("blue component")?;
-            let Component(a) = args.eat()?.unwrap_or(Component(255));
-            RgbaColor::new(r, g, b, a).into()
-        },
-    ))
-}
-
-/// Create a CMYK color.
-pub fn cmyk(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let RatioComponent(c) = args.expect("cyan component")?;
-    let RatioComponent(m) = args.expect("magenta component")?;
-    let RatioComponent(y) = args.expect("yellow component")?;
-    let RatioComponent(k) = args.expect("key component")?;
-    Ok(Value::Color(CmykColor::new(c, m, y, k).into()))
-}
-
-/// An integer or ratio component.
-struct Component(u8);
-
-castable! {
-    Component,
-    Expected: "integer or ratio",
-    Value::Int(v) => match v {
-        0 ..= 255 => Self(v as u8),
-        _ => Err("must be between 0 and 255")?,
-    },
-    Value::Ratio(v) => if (0.0 ..= 1.0).contains(&v.get()) {
-        Self((v.get() * 255.0).round() as u8)
-    } else {
-        Err("must be between 0% and 100%")?
-    },
-}
-
-/// A component that must be a ratio.
-struct RatioComponent(u8);
-
-castable! {
-    RatioComponent,
-    Expected: "ratio",
-    Value::Ratio(v) => if (0.0 ..= 1.0).contains(&v.get()) {
-        Self((v.get() * 255.0).round() as u8)
-    } else {
-        Err("must be between 0% and 100%")?
-    },
-}
diff --git a/library/src/utility/data.rs b/library/src/utility/data.rs
deleted file mode 100644
index 3edade55..00000000
--- a/library/src/utility/data.rs
+++ /dev/null
@@ -1,132 +0,0 @@
-use std::fmt::Write;
-
-use typst::diag::format_xml_like_error;
-
-use crate::prelude::*;
-
-/// Read structured data from a CSV file.
-pub fn csv(vm: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v: path, span } =
-        args.expect::<Spanned<EcoString>>("path to csv file")?;
-
-    let path = vm.locate(&path).at(span)?;
-    let data = vm.world.file(&path).at(span)?;
-
-    let mut builder = csv::ReaderBuilder::new();
-    builder.has_headers(false);
-
-    let mut reader = builder.from_reader(data.as_slice());
-    let mut vec = vec![];
-
-    for result in reader.records() {
-        let row = result.map_err(format_csv_error).at(span)?;
-        let array = row.iter().map(|field| Value::Str(field.into())).collect();
-        vec.push(Value::Array(array))
-    }
-
-    Ok(Value::Array(Array::from_vec(vec)))
-}
-
-/// Format the user-facing CSV error message.
-fn format_csv_error(error: csv::Error) -> String {
-    match error.kind() {
-        csv::ErrorKind::Utf8 { .. } => "file is not valid utf-8".into(),
-        csv::ErrorKind::UnequalLengths { pos, expected_len, len } => {
-            let mut msg = format!(
-                "failed to parse csv file: found {len} instead of {expected_len} fields"
-            );
-            if let Some(pos) = pos {
-                write!(msg, " in line {}", pos.line()).unwrap();
-            }
-            msg
-        }
-        _ => "failed to parse csv file".into(),
-    }
-}
-
-/// Read structured data from a JSON file.
-pub fn json(vm: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v: path, span } =
-        args.expect::<Spanned<EcoString>>("path to json file")?;
-
-    let path = vm.locate(&path).at(span)?;
-    let data = vm.world.file(&path).at(span)?;
-    let value: serde_json::Value =
-        serde_json::from_slice(&data).map_err(format_json_error).at(span)?;
-
-    Ok(convert_json(value))
-}
-
-/// Convert a JSON value to a Typst value.
-fn convert_json(value: serde_json::Value) -> Value {
-    match value {
-        serde_json::Value::Null => Value::None,
-        serde_json::Value::Bool(v) => Value::Bool(v),
-        serde_json::Value::Number(v) => match v.as_i64() {
-            Some(int) => Value::Int(int),
-            None => Value::Float(v.as_f64().unwrap_or(f64::NAN)),
-        },
-        serde_json::Value::String(v) => Value::Str(v.into()),
-        serde_json::Value::Array(v) => {
-            Value::Array(v.into_iter().map(convert_json).collect())
-        }
-        serde_json::Value::Object(v) => Value::Dict(
-            v.into_iter()
-                .map(|(key, value)| (key.into(), convert_json(value)))
-                .collect(),
-        ),
-    }
-}
-
-/// Format the user-facing JSON error message.
-fn format_json_error(error: serde_json::Error) -> String {
-    assert!(error.is_syntax() || error.is_eof());
-    format!(
-        "failed to parse json file: syntax error in line {}",
-        error.line()
-    )
-}
-
-/// Read structured data from an XML file.
-pub fn xml(vm: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v: path, span } =
-        args.expect::<Spanned<EcoString>>("path to xml file")?;
-
-    let path = vm.locate(&path).at(span)?;
-    let data = vm.world.file(&path).at(span)?;
-    let text = std::str::from_utf8(&data).map_err(FileError::from).at(span)?;
-
-    let document = roxmltree::Document::parse(text).map_err(format_xml_error).at(span)?;
-
-    Ok(convert_xml(document.root()))
-}
-
-/// Convert an XML node to a Typst value.
-fn convert_xml(node: roxmltree::Node) -> Value {
-    if node.is_text() {
-        return Value::Str(node.text().unwrap_or_default().into());
-    }
-
-    let children: Array = node.children().map(convert_xml).collect();
-    if node.is_root() {
-        return Value::Array(children);
-    }
-
-    let tag: Str = node.tag_name().name().into();
-    let attrs: Dict = node
-        .attributes()
-        .iter()
-        .map(|attr| (attr.name().into(), attr.value().into()))
-        .collect();
-
-    Value::Dict(dict! {
-        "tag" => tag,
-        "attrs" => attrs,
-        "children" => children,
-    })
-}
-
-/// Format the user-facing XML error message.
-fn format_xml_error(error: roxmltree::Error) -> String {
-    format_xml_like_error("xml file", error)
-}
diff --git a/library/src/utility/math.rs b/library/src/utility/math.rs
deleted file mode 100644
index dd37e8e7..00000000
--- a/library/src/utility/math.rs
+++ /dev/null
@@ -1,144 +0,0 @@
-use std::cmp::Ordering;
-
-use crate::prelude::*;
-
-/// Convert a value to an integer.
-pub fn int(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect("value")?;
-    Ok(Value::Int(match v {
-        Value::Bool(v) => v as i64,
-        Value::Int(v) => v,
-        Value::Float(v) => v as i64,
-        Value::Str(v) => match v.parse() {
-            Ok(v) => v,
-            Err(_) => bail!(span, "invalid integer"),
-        },
-        v => bail!(span, "cannot convert {} to integer", v.type_name()),
-    }))
-}
-
-/// Convert a value to a float.
-pub fn float(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect("value")?;
-    Ok(Value::Float(match v {
-        Value::Int(v) => v as f64,
-        Value::Float(v) => v,
-        Value::Str(v) => match v.parse() {
-            Ok(v) => v,
-            Err(_) => bail!(span, "invalid float"),
-        },
-        v => bail!(span, "cannot convert {} to float", v.type_name()),
-    }))
-}
-
-/// The absolute value of a numeric value.
-pub fn abs(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect("numeric value")?;
-    Ok(match v {
-        Value::Int(v) => Value::Int(v.abs()),
-        Value::Float(v) => Value::Float(v.abs()),
-        Value::Angle(v) => Value::Angle(v.abs()),
-        Value::Ratio(v) => Value::Ratio(v.abs()),
-        Value::Fraction(v) => Value::Fraction(v.abs()),
-        Value::Length(_) | Value::Relative(_) => {
-            bail!(span, "cannot take absolute value of a length")
-        }
-        v => bail!(span, "expected numeric value, found {}", v.type_name()),
-    })
-}
-
-/// The minimum of a sequence of values.
-pub fn min(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    minmax(args, Ordering::Less)
-}
-
-/// The maximum of a sequence of values.
-pub fn max(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    minmax(args, Ordering::Greater)
-}
-
-/// Find the minimum or maximum of a sequence of values.
-fn minmax(args: &mut Args, goal: Ordering) -> SourceResult<Value> {
-    let mut extremum = args.expect::<Value>("value")?;
-    for Spanned { v, span } in args.all::<Spanned<Value>>()? {
-        match v.partial_cmp(&extremum) {
-            Some(ordering) => {
-                if ordering == goal {
-                    extremum = v;
-                }
-            }
-            None => bail!(
-                span,
-                "cannot compare {} and {}",
-                extremum.type_name(),
-                v.type_name(),
-            ),
-        }
-    }
-    Ok(extremum)
-}
-
-/// Whether an integer is even.
-pub fn even(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    Ok(Value::Bool(args.expect::<i64>("integer")? % 2 == 0))
-}
-
-/// Whether an integer is odd.
-pub fn odd(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    Ok(Value::Bool(args.expect::<i64>("integer")? % 2 != 0))
-}
-
-/// The modulo of two numbers.
-pub fn mod_(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v: v1, span: span1 } = args.expect("integer or float")?;
-    let Spanned { v: v2, span: span2 } = args.expect("integer or float")?;
-
-    let (a, b) = match (v1, v2) {
-        (Value::Int(a), Value::Int(b)) => match a.checked_rem(b) {
-            Some(res) => return Ok(Value::Int(res)),
-            None => bail!(span2, "divisor must not be zero"),
-        },
-        (Value::Int(a), Value::Float(b)) => (a as f64, b),
-        (Value::Float(a), Value::Int(b)) => (a, b as f64),
-        (Value::Float(a), Value::Float(b)) => (a, b),
-        (Value::Int(_), b) | (Value::Float(_), b) => bail!(
-            span2,
-            format!("expected integer or float, found {}", b.type_name())
-        ),
-        (a, _) => bail!(
-            span1,
-            format!("expected integer or float, found {}", a.type_name())
-        ),
-    };
-
-    if b == 0.0 {
-        bail!(span2, "divisor must not be zero");
-    }
-
-    Ok(Value::Float(a % b))
-}
-
-/// Create a sequence of numbers.
-pub fn range(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let first = args.expect::<i64>("end")?;
-    let (start, end) = match args.eat::<i64>()? {
-        Some(second) => (first, second),
-        None => (0, first),
-    };
-
-    let step: i64 = match args.named("step")? {
-        Some(Spanned { v: 0, span }) => bail!(span, "step must not be zero"),
-        Some(Spanned { v, .. }) => v,
-        None => 1,
-    };
-
-    let mut x = start;
-    let mut seq = vec![];
-
-    while x.cmp(&end) == 0.cmp(&step) {
-        seq.push(Value::Int(x));
-        x += step;
-    }
-
-    Ok(Value::Array(Array::from_vec(seq)))
-}
diff --git a/library/src/utility/mod.rs b/library/src/utility/mod.rs
deleted file mode 100644
index 402944cd..00000000
--- a/library/src/utility/mod.rs
+++ /dev/null
@@ -1,54 +0,0 @@
-//! Computational utility functions.
-
-mod color;
-mod data;
-mod math;
-mod string;
-
-pub use color::*;
-pub use data::*;
-pub use math::*;
-pub use string::*;
-
-use comemo::Track;
-use typst::model::{Eval, Route, Scopes, Vm};
-use typst::syntax::Source;
-
-use crate::prelude::*;
-
-/// The name of a value's type.
-pub fn type_(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    Ok(args.expect::<Value>("value")?.type_name().into())
-}
-
-/// Ensure that a condition is fulfilled.
-pub fn assert(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect::<Spanned<bool>>("condition")?;
-    if !v {
-        bail!(span, "assertion failed");
-    }
-    Ok(Value::None)
-}
-
-/// Evaluate a string as Typst markup.
-pub fn eval(vm: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v: text, span } = args.expect::<Spanned<String>>("source")?;
-
-    // Parse the source and set a synthetic span for all nodes.
-    let source = Source::synthesized(text, span);
-    let ast = source.ast()?;
-
-    // Evaluate the source.
-    let std = &vm.world.config().scope;
-    let scopes = Scopes::new(Some(std));
-    let route = Route::default();
-    let mut sub = Vm::new(vm.world, route.track(), None, scopes);
-    let result = ast.eval(&mut sub);
-
-    // Handle control flow.
-    if let Some(flow) = sub.flow {
-        bail!(flow.forbidden());
-    }
-
-    Ok(Value::Content(result?))
-}
diff --git a/library/src/utility/string.rs b/library/src/utility/string.rs
deleted file mode 100644
index ed444d35..00000000
--- a/library/src/utility/string.rs
+++ /dev/null
@@ -1,141 +0,0 @@
-use typst::model::Regex;
-
-use crate::prelude::*;
-
-/// The string representation of a value.
-pub fn repr(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    Ok(args.expect::<Value>("value")?.repr().into())
-}
-
-/// Convert a value to a string.
-pub fn str(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect("value")?;
-    Ok(Value::Str(match v {
-        Value::Int(v) => format_str!("{}", v),
-        Value::Float(v) => format_str!("{}", v),
-        Value::Str(v) => v,
-        v => bail!(span, "cannot convert {} to string", v.type_name()),
-    }))
-}
-
-/// Create blind text.
-pub fn lorem(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let words: usize = args.expect("number of words")?;
-    Ok(Value::Str(lipsum::lipsum(words).into()))
-}
-
-/// Create a regular expression.
-pub fn regex(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    let Spanned { v, span } = args.expect::<Spanned<EcoString>>("regular expression")?;
-    Ok(Regex::new(&v).at(span)?.into())
-}
-
-/// Converts an integer into one or multiple letters.
-pub fn letter(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    numbered(Numbering::Letter, args)
-}
-
-/// Converts an integer into a roman numeral.
-pub fn roman(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    numbered(Numbering::Roman, args)
-}
-
-/// Convert a number into a symbol.
-pub fn symbol(_: &mut Vm, args: &mut Args) -> SourceResult<Value> {
-    numbered(Numbering::Symbol, args)
-}
-
-fn numbered(numbering: Numbering, args: &mut Args) -> SourceResult<Value> {
-    let n = args.expect::<usize>("non-negative integer")?;
-    Ok(Value::Str(numbering.apply(n).into()))
-}
-
-/// Allows to convert a number into letters, roman numerals and symbols.
-#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
-pub enum Numbering {
-    Arabic,
-    Letter,
-    Roman,
-    Symbol,
-}
-
-impl Numbering {
-    /// Apply the numbering to the given number.
-    pub fn apply(self, mut n: usize) -> EcoString {
-        match self {
-            Self::Arabic => {
-                format_eco!("{}", n)
-            }
-            Self::Letter => {
-                if n == 0 {
-                    return '-'.into();
-                }
-
-                n -= 1;
-
-                let mut letters = vec![];
-                loop {
-                    letters.push(b'a' + (n % 26) as u8);
-                    n /= 26;
-                    if n == 0 {
-                        break;
-                    }
-                }
-
-                letters.reverse();
-                String::from_utf8(letters).unwrap().into()
-            }
-            Self::Roman => {
-                if n == 0 {
-                    return 'N'.into();
-                }
-
-                // Adapted from Yann Villessuzanne's roman.rs under the Unlicense, at
-                // https://github.com/linfir/roman.rs/
-                let mut fmt = EcoString::new();
-                for &(name, value) in ROMANS {
-                    while n >= value {
-                        n -= value;
-                        fmt.push_str(name);
-                    }
-                }
-
-                fmt
-            }
-            Self::Symbol => {
-                if n == 0 {
-                    return '-'.into();
-                }
-
-                let symbol = SYMBOLS[(n - 1) % SYMBOLS.len()];
-                let amount = ((n - 1) / SYMBOLS.len()) + 1;
-                std::iter::repeat(symbol).take(amount).collect()
-            }
-        }
-    }
-}
-
-const ROMANS: &[(&str, usize)] = &[
-    ("M̅", 1000000),
-    ("D̅", 500000),
-    ("C̅", 100000),
-    ("L̅", 50000),
-    ("X̅", 10000),
-    ("V̅", 5000),
-    ("I̅V̅", 4000),
-    ("M", 1000),
-    ("CM", 900),
-    ("D", 500),
-    ("CD", 400),
-    ("C", 100),
-    ("XC", 90),
-    ("L", 50),
-    ("XL", 40),
-    ("X", 10),
-    ("IX", 9),
-    ("V", 5),
-    ("IV", 4),
-    ("I", 1),
-];
-
-const SYMBOLS: &[char] = &['*', '†', '‡', '§', '‖', '¶'];