Methods

4 files changed, 133 insertions, 171 deletions

diff --git a/src/library/utility/color.rs b/src/library/utility/color.rs
new file mode 100644
index 00000000..df24f615
--- /dev/null
+++ b/src/library/utility/color.rs
@@ -0,0 +1,58 @@
+use std::str::FromStr;
+
+use crate::library::prelude::*;
+
+/// Create an RGB(A) color.
+pub fn rgb(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    Ok(Value::from(
+        if let Some(string) = args.find::<Spanned<EcoString>>()? {
+            match RgbaColor::from_str(&string.v) {
+                Ok(color) => color,
+                Err(_) => bail!(string.span, "invalid hex string"),
+            }
+        } else {
+            struct Component(u8);
+
+            castable! {
+                Component,
+                Expected: "integer or relative",
+                Value::Int(v) => match v {
+                    0 ..= 255 => Self(v as u8),
+                    _ => Err("must be between 0 and 255")?,
+                },
+                Value::Relative(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%")?
+                },
+            }
+
+            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)
+        },
+    ))
+}
+
+/// Create a CMYK color.
+pub fn cmyk(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    struct Component(u8);
+
+    castable! {
+        Component,
+        Expected: "relative",
+        Value::Relative(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%")?
+        },
+    }
+
+    let Component(c) = args.expect("cyan component")?;
+    let Component(m) = args.expect("magenta component")?;
+    let Component(y) = args.expect("yellow component")?;
+    let Component(k) = args.expect("key component")?;
+    Ok(Value::Color(CmykColor::new(c, m, y, k).into()))
+}
diff --git a/src/library/utility/math.rs b/src/library/utility/math.rs
index e48af426..0aebc573 100644
--- a/src/library/utility/math.rs
+++ b/src/library/utility/math.rs
@@ -2,6 +2,35 @@ use std::cmp::Ordering;
 
 use crate::library::prelude::*;
 
+/// Convert a value to a integer.
+pub fn int(_: &mut Context, args: &mut Args) -> TypResult<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 Context, args: &mut Args) -> TypResult<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 Context, args: &mut Args) -> TypResult<Value> {
     let Spanned { v, span } = args.expect("numeric value")?;
diff --git a/src/library/utility/mod.rs b/src/library/utility/mod.rs
index d85c3f12..13220242 100644
--- a/src/library/utility/mod.rs
+++ b/src/library/utility/mod.rs
@@ -1,15 +1,19 @@
 //! Computational utility functions.
 
+mod color;
 mod math;
-mod numbering;
+mod string;
 
+pub use color::*;
 pub use math::*;
-pub use numbering::*;
-
-use std::str::FromStr;
+pub use string::*;
 
 use crate::library::prelude::*;
-use crate::library::text::{Case, TextNode};
+
+/// The name of a value's type.
+pub fn type_(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    Ok(args.expect::<Value>("value")?.type_name().into())
+}
 
 /// Ensure that a condition is fulfilled.
 pub fn assert(_: &mut Context, args: &mut Args) -> TypResult<Value> {
@@ -19,169 +23,3 @@ pub fn assert(_: &mut Context, args: &mut Args) -> TypResult<Value> {
     }
     Ok(Value::None)
 }
-
-/// The name of a value's type.
-pub fn type_(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    Ok(args.expect::<Value>("value")?.type_name().into())
-}
-
-/// The string representation of a value.
-pub fn repr(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    Ok(args.expect::<Value>("value")?.repr().into())
-}
-
-/// Join a sequence of values, optionally interspersing it with another value.
-pub fn join(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    let span = args.span;
-    let sep = args.named::<Value>("sep")?.unwrap_or(Value::None);
-
-    let mut result = Value::None;
-    let mut iter = args.all::<Value>()?.into_iter();
-
-    if let Some(first) = iter.next() {
-        result = first;
-    }
-
-    for value in iter {
-        result = result.join(sep.clone()).at(span)?;
-        result = result.join(value).at(span)?;
-    }
-
-    Ok(result)
-}
-
-/// Convert a value to a integer.
-pub fn int(_: &mut Context, args: &mut Args) -> TypResult<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 Context, args: &mut Args) -> TypResult<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()),
-    }))
-}
-
-/// Cconvert a value to a string.
-pub fn str(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    let Spanned { v, span } = args.expect("value")?;
-    Ok(Value::Str(match v {
-        Value::Int(v) => format_eco!("{}", v),
-        Value::Float(v) => format_eco!("{}", v),
-        Value::Str(v) => v,
-        v => bail!(span, "cannot convert {} to string", v.type_name()),
-    }))
-}
-
-/// Create an RGB(A) color.
-pub fn rgb(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    Ok(Value::from(
-        if let Some(string) = args.find::<Spanned<EcoString>>()? {
-            match RgbaColor::from_str(&string.v) {
-                Ok(color) => color,
-                Err(_) => bail!(string.span, "invalid hex string"),
-            }
-        } else {
-            struct Component(u8);
-
-            castable! {
-                Component,
-                Expected: "integer or relative",
-                Value::Int(v) => match v {
-                    0 ..= 255 => Self(v as u8),
-                    _ => Err("must be between 0 and 255")?,
-                },
-                Value::Relative(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%")?
-                },
-            }
-
-            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)
-        },
-    ))
-}
-
-/// Create a CMYK color.
-pub fn cmyk(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    struct Component(u8);
-
-    castable! {
-        Component,
-        Expected: "relative",
-        Value::Relative(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%")?
-        },
-    }
-
-    let Component(c) = args.expect("cyan component")?;
-    let Component(m) = args.expect("magenta component")?;
-    let Component(y) = args.expect("yellow component")?;
-    let Component(k) = args.expect("key component")?;
-    Ok(Value::Color(CmykColor::new(c, m, y, k).into()))
-}
-
-/// The length of a string, an array or a dictionary.
-pub fn len(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    let Spanned { v, span } = args.expect("collection")?;
-    Ok(Value::Int(match v {
-        Value::Str(v) => v.len() as i64,
-        Value::Array(v) => v.len(),
-        Value::Dict(v) => v.len(),
-        v => bail!(
-            span,
-            "expected string, array or dictionary, found {}",
-            v.type_name(),
-        ),
-    }))
-}
-
-/// Convert a string to lowercase.
-pub fn lower(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    case(Case::Lower, args)
-}
-
-/// Convert a string to uppercase.
-pub fn upper(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    case(Case::Upper, args)
-}
-
-/// Change the case of a string or content.
-fn case(case: Case, args: &mut Args) -> TypResult<Value> {
-    let Spanned { v, span } = args.expect("string or content")?;
-    Ok(match v {
-        Value::Str(v) => Value::Str(case.apply(&v).into()),
-        Value::Content(v) => Value::Content(v.styled(TextNode::CASE, Some(case))),
-        v => bail!(span, "expected string or content, found {}", v.type_name()),
-    })
-}
-
-/// The sorted version of an array.
-pub fn sorted(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    let Spanned { v, span } = args.expect::<Spanned<Array>>("array")?;
-    Ok(Value::Array(v.sorted().at(span)?))
-}
diff --git a/src/library/utility/numbering.rs b/src/library/utility/string.rs
index 0070873f..92d80be2 100644
--- a/src/library/utility/numbering.rs
+++ b/src/library/utility/string.rs
@@ -1,4 +1,41 @@
 use crate::library::prelude::*;
+use crate::library::text::{Case, TextNode};
+
+/// The string representation of a value.
+pub fn repr(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    Ok(args.expect::<Value>("value")?.repr().into())
+}
+
+/// Cconvert a value to a string.
+pub fn str(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    let Spanned { v, span } = args.expect("value")?;
+    Ok(Value::Str(match v {
+        Value::Int(v) => format_eco!("{}", v),
+        Value::Float(v) => format_eco!("{}", v),
+        Value::Str(v) => v,
+        v => bail!(span, "cannot convert {} to string", v.type_name()),
+    }))
+}
+
+/// Convert a string to lowercase.
+pub fn lower(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    case(Case::Lower, args)
+}
+
+/// Convert a string to uppercase.
+pub fn upper(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    case(Case::Upper, args)
+}
+
+/// Change the case of a string or content.
+fn case(case: Case, args: &mut Args) -> TypResult<Value> {
+    let Spanned { v, span } = args.expect("string or content")?;
+    Ok(match v {
+        Value::Str(v) => Value::Str(case.apply(&v).into()),
+        Value::Content(v) => Value::Content(v.styled(TextNode::CASE, Some(case))),
+        v => bail!(span, "expected string or content, found {}", v.type_name()),
+    })
+}
 
 /// Converts an integer into one or multiple letters.
 pub fn letter(_: &mut Context, args: &mut Args) -> TypResult<Value> {