A few predefined colors for testing

src/eval/scope.rs

@@ -1,10 +1,10 @@
 use std::cell::RefCell;
 use std::collections::HashMap;
-use std::fmt::{self, Debug, Formatter};
+use std::fmt::{self, Debug, Display, Formatter};
 use std::iter;
 use std::rc::Rc;
 
-use super::Value;
+use super::{AnyValue, EvalContext, FuncArgs, FuncValue, Type, Value};
 
 /// A slot where a variable is stored.
 pub type Slot = Rc<RefCell<Value>>;
@@ -100,6 +100,23 @@ impl Scope {
         self.values.insert(var.into(), Rc::new(cell));
     }
 
+    /// Define a constant function.
+    pub fn def_func<F>(&mut self, name: impl Into<String>, f: F)
+    where
+        F: Fn(&mut EvalContext, &mut FuncArgs) -> Value + 'static,
+    {
+        let name = name.into();
+        self.def_const(name.clone(), FuncValue::new(Some(name), f));
+    }
+
+    /// Define a constant variable with a value of variant `Value::Any`.
+    pub fn def_any<T>(&mut self, var: impl Into<String>, any: T)
+    where
+        T: Type + Debug + Display + Clone + PartialEq + 'static,
+    {
+        self.def_const(var, AnyValue::new(any))
+    }
+
     /// Define a mutable variable with a value.
     pub fn def_mut(&mut self, var: impl Into<String>, value: impl Into<Value>) {
         self.values.insert(var.into(), Rc::new(RefCell::new(value.into())));

src/eval/value.rs

@@ -6,7 +6,7 @@ use std::ops::Deref;
 use std::rc::Rc;
 
 use super::{EvalContext, NodeMap};
-use crate::color::Color;
+use crate::color::{Color, RgbaColor};
 use crate::exec::ExecContext;
 use crate::geom::{Angle, Length, Linear, Relative};
 use crate::syntax::{Span, Spanned, Tree};
@@ -622,6 +622,12 @@ impl From<&str> for Value {
     }
 }
 
+impl From<RgbaColor> for Value {
+    fn from(v: RgbaColor) -> Self {
+        Self::Color(Color::Rgba(v))
+    }
+}
+
 impl From<AnyValue> for Value {
     fn from(v: AnyValue) -> Self {
         Self::Any(v)

src/library/font.rs

@@ -39,16 +39,9 @@ use super::*;
 ///   - `italic`
 ///   - `oblique`
 /// - Type `font-weight`
-///   - `thin` (100)
-///   - `extralight` (200)
-///   - `light` (300)
 ///   - `regular` (400)
-///   - `medium` (500)
-///   - `semibold` (600)
 ///   - `bold` (700)
-///   - `extrabold` (800)
-///   - `black` (900)
-///   - coerces from `integer`
+///   - coerces from `integer`, between 100 and 900
 /// - Type `vertical-font-metric`
 ///   - `ascender`
 ///   - `cap-height`

src/library/mod.rs

@@ -33,9 +33,8 @@ pub use stack::*;
 
 use std::fmt::{self, Display, Formatter};
 
-use crate::eval::{
-    AnyValue, EvalContext, FuncArgs, FuncValue, Scope, TemplateValue, Value,
-};
+use crate::color::RgbaColor;
+use crate::eval::{EvalContext, FuncArgs, Scope, TemplateValue, Value};
 use crate::exec::{Exec, FontFamily};
 use crate::font::{FontStyle, FontWeight, VerticalFontMetric};
 use crate::geom::*;
@@ -45,80 +44,68 @@ use crate::syntax::{Node, Spanned};
 pub fn new() -> Scope {
     let mut std = Scope::new();
 
-    macro_rules! func {
-        ($name:expr, $func:expr) => {
-            std.def_const($name, FuncValue::new(Some($name.into()), $func))
-        };
-    }
-
-    macro_rules! constant {
-        ($var:expr, $any:expr) => {
-            std.def_const($var, AnyValue::new($any))
-        };
-    }
-
     // Syntax functions.
-    func!(Node::LINEBREAK, linebreak);
-    func!(Node::PARBREAK, parbreak);
-    func!(Node::STRONG, strong);
-    func!(Node::EMPH, emph);
-    func!(Node::HEADING, heading);
-    func!(Node::RAW, raw);
+    std.def_func(Node::LINEBREAK, linebreak);
+    std.def_func(Node::PARBREAK, parbreak);
+    std.def_func(Node::STRONG, strong);
+    std.def_func(Node::EMPH, emph);
+    std.def_func(Node::HEADING, heading);
+    std.def_func(Node::RAW, raw);
 
     // Library functions.
-    func!("align", align);
-    func!("circle", circle);
-    func!("ellipse", ellipse);
-    func!("font", font);
-    func!("h", h);
-    func!("image", image);
-    func!("lang", lang);
-    func!("max", max);
-    func!("min", min);
-    func!("pad", pad);
-    func!("page", page);
-    func!("pagebreak", pagebreak);
-    func!("par", par);
-    func!("rect", rect);
-    func!("repr", repr);
-    func!("rgb", rgb);
-    func!("square", square);
-    func!("stack", stack);
-    func!("type", type_);
-    func!("v", v);
+    std.def_func("align", align);
+    std.def_func("circle", circle);
+    std.def_func("ellipse", ellipse);
+    std.def_func("font", font);
+    std.def_func("h", h);
+    std.def_func("image", image);
+    std.def_func("lang", lang);
+    std.def_func("max", max);
+    std.def_func("min", min);
+    std.def_func("pad", pad);
+    std.def_func("page", page);
+    std.def_func("pagebreak", pagebreak);
+    std.def_func("par", par);
+    std.def_func("rect", rect);
+    std.def_func("repr", repr);
+    std.def_func("rgb", rgb);
+    std.def_func("square", square);
+    std.def_func("stack", stack);
+    std.def_func("type", type_);
+    std.def_func("v", v);
 
-    // Constants.
-    constant!("start", AlignValue::Start);
-    constant!("center", AlignValue::Center);
-    constant!("end", AlignValue::End);
-    constant!("left", AlignValue::Left);
-    constant!("right", AlignValue::Right);
-    constant!("top", AlignValue::Top);
-    constant!("bottom", AlignValue::Bottom);
-    constant!("ltr", Dir::LTR);
-    constant!("rtl", Dir::RTL);
-    constant!("ttb", Dir::TTB);
-    constant!("btt", Dir::BTT);
-    constant!("serif", FontFamily::Serif);
-    constant!("sans-serif", FontFamily::SansSerif);
-    constant!("monospace", FontFamily::Monospace);
-    constant!("normal", FontStyle::Normal);
-    constant!("italic", FontStyle::Italic);
-    constant!("oblique", FontStyle::Oblique);
-    constant!("thin", FontWeight::THIN);
-    constant!("extralight", FontWeight::EXTRALIGHT);
-    constant!("light", FontWeight::LIGHT);
-    constant!("regular", FontWeight::REGULAR);
-    constant!("medium", FontWeight::MEDIUM);
-    constant!("semibold", FontWeight::SEMIBOLD);
-    constant!("bold", FontWeight::BOLD);
-    constant!("extrabold", FontWeight::EXTRABOLD);
-    constant!("black", FontWeight::BLACK);
-    constant!("ascender", VerticalFontMetric::Ascender);
-    constant!("cap-height", VerticalFontMetric::CapHeight);
-    constant!("x-height", VerticalFontMetric::XHeight);
-    constant!("baseline", VerticalFontMetric::Baseline);
-    constant!("descender", VerticalFontMetric::Descender);
+    // Colors.
+    std.def_const("white", RgbaColor::WHITE);
+    std.def_const("black", RgbaColor::BLACK);
+    std.def_const("eastern", RgbaColor::new(0x23, 0x9D, 0xAD, 0xFF));
+    std.def_const("conifer", RgbaColor::new(0x9f, 0xEB, 0x52, 0xFF));
+    std.def_const("forest", RgbaColor::new(0x43, 0xA1, 0x27, 0xFF));
+
+    // Arbitrary constants.
+    std.def_any("start", AlignValue::Start);
+    std.def_any("center", AlignValue::Center);
+    std.def_any("end", AlignValue::End);
+    std.def_any("left", AlignValue::Left);
+    std.def_any("right", AlignValue::Right);
+    std.def_any("top", AlignValue::Top);
+    std.def_any("bottom", AlignValue::Bottom);
+    std.def_any("ltr", Dir::LTR);
+    std.def_any("rtl", Dir::RTL);
+    std.def_any("ttb", Dir::TTB);
+    std.def_any("btt", Dir::BTT);
+    std.def_any("serif", FontFamily::Serif);
+    std.def_any("sans-serif", FontFamily::SansSerif);
+    std.def_any("monospace", FontFamily::Monospace);
+    std.def_any("normal", FontStyle::Normal);
+    std.def_any("italic", FontStyle::Italic);
+    std.def_any("oblique", FontStyle::Oblique);
+    std.def_any("regular", FontWeight::REGULAR);
+    std.def_any("bold", FontWeight::BOLD);
+    std.def_any("ascender", VerticalFontMetric::Ascender);
+    std.def_any("cap-height", VerticalFontMetric::CapHeight);
+    std.def_any("x-height", VerticalFontMetric::XHeight);
+    std.def_any("baseline", VerticalFontMetric::Baseline);
+    std.def_any("descender", VerticalFontMetric::Descender);
 
     std
 }

tests/typ/code/let.typ

@@ -17,8 +17,8 @@
 
 ---
 // Syntax sugar for function definitions.
-#let background = #9feb52
-#let rect(body) = rect(width: 2cm, fill: background, pad(5pt, body))
+#let fill = conifer
+#let rect(body) = rect(width: 2cm, fill: fill, pad(5pt, body))
 #rect[Hi!]
 
 // Error: 13 expected body

tests/typ/library/basic.typ

@@ -22,4 +22,4 @@
 // Error: 3:11-3:11 missing argument: red component
 // Error: 2:11-2:11 missing argument: green component
 // Error: 1:11-1:11 missing argument: blue component
-#test(rgb(), #000000)
+#test(rgb(), black)

tests/typ/library/circle.typ

@@ -7,35 +7,35 @@ Auto-sized circle. \
 #circle(fill: #eb5278, align(center, center, [But, soft!]))
 
 Center-aligned rect in auto-sized circle.
-#circle(fill: #43a127)[
+#circle(fill: forest)[
     #align(center, center)
-    #rect(fill: #9feb52, pad(5pt)[But, soft!])
+    #rect(fill: conifer, pad(5pt)[But, soft!])
 ]
 
 100%-width rect in auto-sized circle. \
-#circle(fill: #43a127, rect(width: 100%, fill: #9feb52)[
+#circle(fill: forest, rect(width: 100%, fill: conifer)[
     But, soft! what light through yonder window breaks?
 ])
 
 Expanded by height.
-#circle(fill: #9feb52)[A \ B \ C]
+#circle(fill: conifer)[A \ B \ C]
 
 ---
 // Test relative sizing.
 #rect(width: 100%, height: 50pt, fill: #aaa)[
     #align(center, center)
     #font(color: #fff)
-    #circle(radius: 10pt, fill: #239DAD)[A]
-    #circle(height: 60%, fill: #239DAD)[B]
-    #circle(width: 20% + 20pt, fill: #239DAD)[C]
+    #circle(radius: 10pt, fill: eastern)[A]
+    #circle(height: 60%, fill: eastern)[B]
+    #circle(width: 20% + 20pt, fill: eastern)[C]
 ]
 
 ---
 // Radius wins over width and height.
 // Error: 2:23-2:34 unexpected argument
 // Error: 1:36-1:49 unexpected argument
-#circle(radius: 10pt, width: 50pt, height: 100pt, fill: #239DAD)
+#circle(radius: 10pt, width: 50pt, height: 100pt, fill: eastern)
 
 // Width wins over height.
 // Error: 22-34 unexpected argument
-#circle(width: 20pt, height: 50pt, fill: #239DAD)
+#circle(width: 20pt, height: 50pt, fill: eastern)

tests/typ/library/ellipse.typ

@@ -3,14 +3,14 @@
 ---
 100% rect in 100% ellipse in fixed rect. \
 #rect(width: 3cm, height: 2cm, fill: #2a631a)[
-    #ellipse(width: 100%, height: 100%, fill: #43a127)[
-        #rect(width: 100%, height: 100%, fill: #9feb52)[
+    #ellipse(width: 100%, height: 100%, fill: forest)[
+        #rect(width: 100%, height: 100%, fill: conifer)[
             #align(center, center)[Stuff inside an ellipse!]
         ]
     ]
 ]
 
 Auto-sized ellipse. \
-#ellipse(fill: #9feb52)[
+#ellipse(fill: conifer)[
     But, soft! what light through yonder window breaks?
 ]

tests/typ/library/font.typ

@@ -32,13 +32,13 @@ Emoji: 🐪, 🌋, 🏞
 ]
 
 // Colors.
-#font(color: #239DAD)[This is #font(color: #FA644B)[way more] colorful.]
+#font(color: eastern)[This is #font(color: #FA644B)[way more] colorful.]
 
 ---
 // Test top and bottom edge.
 
 #page(width: 170pt)
-#let try(top, bottom) = rect(fill: #9feb52)[
+#let try(top, bottom) = rect(fill: conifer)[
     #font(top-edge: top, bottom-edge: bottom)
     `From `#top` to `#bottom
 ]

tests/typ/library/pad.typ

@@ -5,7 +5,7 @@
 #pad(left: 10pt, [Indented!])
 
 // All sides together.
-#rect(fill: #9feb52,
+#rect(fill: conifer,
   pad(10pt, right: 20pt,
   rect(width: 20pt, height: 20pt, fill: #eb5278)))
 

tests/typ/library/rect.typ

@@ -6,7 +6,7 @@
 #page(width: 150pt)
 
 // Fit to text.
-#rect(fill: #9feb52)[Textbox]
+#rect(fill: conifer)[Textbox]
 
 // Empty with fixed width and height.
 #rect(width: 3cm, height: 12pt, fill: #CB4CED)

tests/typ/library/square.typ

@@ -2,7 +2,7 @@
 
 ---
 Auto-sized square. \
-#square(fill: #239DAD)[
+#square(fill: eastern)[
     #align(center)
     #pad(5pt)[
         #font(color: #fff, weight: bold)
@@ -19,13 +19,13 @@ Auto-sized square. \
 ---
 // Test height overflow.
 #page(width: 75pt, height: 100pt)
-#square(fill: #9feb52)[
+#square(fill: conifer)[
     But, soft! what light through yonder window breaks?
 ]
 
 ---
 // Test width overflow.
 #page(width: 100pt, height: 75pt)
-#square(fill: #9feb52)[
+#square(fill: conifer)[
     But, soft! what light through yonder window breaks?
 ]

tests/typ/library/stack.typ

@@ -4,6 +4,6 @@
 #let rect(width, color) = rect(width: width, height: 1cm, fill: color)
 #stack(
     rect(2cm, #2a631a),
-    rect(3cm, #43a127),
-    rect(1cm, #9feb52),
+    rect(3cm, forest),
+    rect(1cm, conifer),
 )

tests/typ/markup/basic.typ

@@ -3,7 +3,7 @@
 ---
 #let linebreak() = [
     // Inside the old line break definition is still active.
-    #square(length: 3pt, fill: #000) \
+    #square(length: 3pt, fill: black) \
 ]
 
 A \ B \ C