New syntax 💎

- Everything everywhere!
  - Blocks with curly braces: {}
  - Templates with brackets: []
  - Function templates with hashtag: `#[f]`
- Headings with equals sign: `= Introduction`

18 files changed, 223 insertions, 232 deletions

diff --git a/tests/full/typ/coma.typ b/tests/full/typ/coma.typ
index b7863fce..32990997 100644
--- a/tests/full/typ/coma.typ
+++ b/tests/full/typ/coma.typ
@@ -1,23 +1,23 @@
-[page width: 450pt, height: 300pt, margins: 1cm]
+#[page width: 450pt, height: 300pt, margins: 1cm]
 
-[box][
+#[box][
     *Technische Universität Berlin* \
     *Fakultät II, Institut for Mathematik* \
     Sekretariat MA \
     Dr. Max Mustermann \
     Ola Nordmann, John Doe
 ]
-[align right | box][*WiSe 2019/2020* \ Woche 3]
+#[align right | box][*WiSe 2019/2020* \ Woche 3]
 
-[v 6mm]
+#[v 6mm]
 
-[align center][
-    #### 3. Übungsblatt Computerorientierte Mathematik II [v 2mm]
-    *Abgabe: 03.05.2019* (bis 10:10 Uhr in MA 001) [v 2mm]
+#[align center][
+    ==== 3. Übungsblatt Computerorientierte Mathematik II #[v 2mm]
+    *Abgabe: 03.05.2019* (bis 10:10 Uhr in MA 001) #[v 2mm]
     *Alle Antworten sind zu beweisen.*
 ]
 
-*1. Aufgabe* [align right][(1 + 1 + 2 Punkte)]
+*1. Aufgabe* #[align right][(1 + 1 + 2 Punkte)]
 
 Ein _Binärbaum_ ist ein Wurzelbaum, in dem jeder Knoten ≤ 2 Kinder hat.
 Die Tiefe eines Knotens _v_ ist die Länge des eindeutigen Weges von der Wurzel
diff --git a/tests/lang/ref/bracket-call.png b/tests/lang/ref/bracket-call.png
index e8924484..fe7f2434 100644
--- a/tests/lang/ref/bracket-call.png
+++ b/tests/lang/ref/bracket-call.png
diff --git a/tests/lang/ref/headings.png b/tests/lang/ref/headings.png
index c8d83165..b1ad3366 100644
--- a/tests/lang/ref/headings.png
+++ b/tests/lang/ref/headings.png
diff --git a/tests/lang/typ/bracket-call.typ b/tests/lang/typ/bracket-call.typ
index 3d1fceb0..46757c45 100644
--- a/tests/lang/typ/bracket-call.typ
+++ b/tests/lang/typ/bracket-call.typ
@@ -1,25 +1,25 @@
 // Basic call, whitespace insignificant.
-[f], [ f ], [
+#[f], #[ f ], #[
     f
 ]
 
-[f bold]
+#[f bold]
 
-[f 1,]
+#[f 1,]
 
-[f a:2]
+#[f a:2]
 
-[f 1, a: (3, 4), 2, b: "5"]
+#[f 1, a: (3, 4), 2, b: "5"]
 
 ---
 // Body and no body.
-[f][[f]]
+#[f][#[f]]
 
 // Lots of potential bodies.
-[f][f][f]
+#[f][f]#[f]
 
 // Multi-paragraph body.
-[box][
+#[box][
     First
 
     Second
@@ -27,81 +27,81 @@
 
 ---
 // Chained.
-[f | f]
+#[f | f]
 
 // Multi-chain.
-[f|f|f]
+#[f|f|f]
 
 // With body.
-// Error: 1:6-1:7 expected identifier, found integer
-[f | 1 | box][💕]
+// Error: 1:7-1:8 expected identifier, found integer
+#[f | 1 | box][💕]
 
-// Error: 2:2-2:2 expected identifier
-// Error: 1:3-1:3 expected identifier
-[||f true]
+// Error: 2:3-2:3 expected identifier
+// Error: 1:4-1:4 expected identifier
+#[||f true]
 
-// Error: 1:6-1:6 expected identifier
-[f 1|]
+// Error: 1:7-1:7 expected identifier
+#[f 1|]
 
-// Error: 2:2-2:2 expected identifier
-// Error: 1:3-1:3 expected identifier
-[|][Nope]
+// Error: 2:3-2:3 expected identifier
+// Error: 1:4-1:4 expected identifier
+#[|][Nope]
 
-// Error: 2:5-2:5 expected closing paren
-// Error: 1:8-1:9 expected expression, found closing paren
-[f (|f )]
+// Error: 2:6-2:6 expected closing paren
+// Error: 1:9-1:10 expected expression, found closing paren
+#[f (|f )]
 
 // With actual functions.
-[box width: 1cm | image "res/rhino.png"]
+#[box width: 1cm | image "res/rhino.png"]
 
 ---
-// Error: 1:4-1:6 expected expression, found end of block comment
-[f */]
+// Error: 1:5-1:7 expected expression, found end of block comment
+#[f */]
 
-// Error: 1:7-1:8 expected expression, found colon
-[f a:1:]
+// Error: 1:8-1:9 expected expression, found colon
+#[f a:1:]
 
-// Error: 1:5-1:5 expected comma
-[f 1 2]
+// Error: 1:6-1:6 expected comma
+#[f 1 2]
 
-// Error: 2:4-2:5 expected identifier
-// Error: 1:6-1:6 expected expression
-[f 1:]
+// Error: 2:5-2:6 expected identifier
+// Error: 1:7-1:7 expected expression
+#[f 1:]
 
-// Error: 1:4-1:5 expected identifier
-[f 1:2]
+// Error: 1:5-1:6 expected identifier
+#[f 1:2]
 
-// Error: 1:4-1:7 expected identifier
-[f (x):1]
+// Error: 1:5-1:8 expected identifier
+#[f (x):1]
 
 ---
 // Ref: false
-// Error: 2:2-2:3 expected function, found string
+// Error: 2:3-2:4 expected function, found string
 #let x = "string"
-[x]
+#[x]
 
-// Error: 1:2-1:3 expected identifier, found invalid token
-[# 1]
+// Error: 1:3-1:4 expected identifier, found invalid token
+#[# 1]
 
 // Error: 4:1-4:1 expected identifier
 // Error: 3:1-3:1 expected closing bracket
-[
+#[
 
 ---
 // Ref: false
-// Error: 2:2-2:3 expected identifier, found closing paren
+// Error: 2:3-2:4 expected identifier, found closing paren
 // Error: 3:1-3:1 expected closing bracket
-[)
+#[)
 
 ---
 // Error: 3:1-3:1 expected closing bracket
-[f [*]
+#[f [*]
 
 ---
 // Error: 3:1-3:1 expected closing bracket
-[f][`a]`
+#[f][`a]`
 
 ---
 // Error: 3:1-3:1 expected quote
 // Error: 2:1-2:1 expected closing bracket
-[f "]
+#[f "]
diff --git a/tests/lang/typ/comments.typ b/tests/lang/typ/comments.typ
index 5118a05e..880e8c2b 100644
--- a/tests/lang/typ/comments.typ
+++ b/tests/lang/typ/comments.typ
@@ -8,7 +8,7 @@ C/*
 */D
 
 // Works in headers.
-[f /*1*/ a: "b" //
+#[f /*1*/ a: "b" //
 , 1]
 
 // End should not appear without start.
diff --git a/tests/lang/typ/emph-strong.typ b/tests/lang/typ/emph-strong.typ
index dcd17337..2f77c7bb 100644
--- a/tests/lang/typ/emph-strong.typ
+++ b/tests/lang/typ/emph-strong.typ
@@ -5,7 +5,7 @@ _Emph_ and *strong*!
 Pa_rtl_y emphasized or str*ength*ened.
 
 // Scoped to body.
-[box][*Sco_ped] to body.
+#[box][*Sco_ped] to body.
 
 // Unterminated is fine.
 _The End
diff --git a/tests/lang/typ/expressions.typ b/tests/lang/typ/expressions.typ
index da6c6f4f..eee40085 100644
--- a/tests/lang/typ/expressions.typ
+++ b/tests/lang/typ/expressions.typ
@@ -7,75 +7,75 @@
 #let error = +""
 
 // Paren call.
-[test f(1), "f(1)"]
-[test type(1), "integer"]
+#[test f(1), "f(1)"]
+#[test type(1), "integer"]
 
 // Unary operations.
-[test +1, 1]
-[test -1, 1-2]
-[test --1, 1]
+#[test +1, 1]
+#[test -1, 1-2]
+#[test --1, 1]
 
 // Math operations.
-[test "a" + "b", "ab"]
-[test 1-4, 3*-1]
-[test a * b, 8]
-[test 12pt/.4, 30pt]
-[test 1e+2-1e-2, 99.99]
+#[test "a" + "b", "ab"]
+#[test 1-4, 3*-1]
+#[test a * b, 8]
+#[test 12pt/.4, 30pt]
+#[test 1e+2-1e-2, 99.99]
 
 // Associativity.
-[test 1+2+3, 6]
-[test 1/2*3, 1.5]
+#[test 1+2+3, 6]
+#[test 1/2*3, 1.5]
 
 // Precedence.
-[test 1+2*-3, -5]
+#[test 1+2*-3, -5]
 
 // Short-circuiting logical operators.
-[test not "a" == "b", true]
-[test not 7 < 4 and 10 == 10, true]
-[test 3 < 2 or 4 < 5, true]
-[test false and false or true, true]
+#[test not "a" == "b", true]
+#[test not 7 < 4 and 10 == 10, true]
+#[test 3 < 2 or 4 < 5, true]
+#[test false and false or true, true]
 
 // Right-hand side not even evaluated.
-[test false and dont-care, false]
-[test true or dont-care, true]
+#[test false and dont-care, false]
+#[test true or dont-care, true]
 
 // Equality and inequality.
-[test "ab" == "a" + "b", true]
-[test [*Hi*] == [*Hi*], true]
-[test "a" != "a", false]
-[test [*] != [_], true]
-[test (1, 2, 3) == (1, 2) + (3,), true]
-[test () == (1,), false]
-[test (a: 1, b: 2) == (b: 2, a: 1), true]
-[test (:) == (a: 1), false]
-[test 1 == "hi", false]
-[test 1 == 1.0, true]
-[test 30% == 30% + 0cm, true]
-[test 1in == 0% + 72pt, true]
-[test 30% == 30% + 1cm, false]
+#[test "ab" == "a" + "b", true]
+#[test [*Hi*] == [*Hi*], true]
+#[test "a" != "a", false]
+#[test [*] != [_], true]
+#[test (1, 2, 3) == (1, 2) + (3,), true]
+#[test () == (1,), false]
+#[test (a: 1, b: 2) == (b: 2, a: 1), true]
+#[test (:) == (a: 1), false]
+#[test 1 == "hi", false]
+#[test 1 == 1.0, true]
+#[test 30% == 30% + 0cm, true]
+#[test 1in == 0% + 72pt, true]
+#[test 30% == 30% + 1cm, false]
 
 // Comparisons.
-[test 13 * 3 < 14 * 4, true]
-[test 5 < 10, true]
-[test 5 > 5, false]
-[test 5 <= 5, true]
-[test 5 <= 4, false]
-[test 45deg < 1rad, true]
+#[test 13 * 3 < 14 * 4, true]
+#[test 5 < 10, true]
+#[test 5 > 5, false]
+#[test 5 <= 5, true]
+#[test 5 <= 4, false]
+#[test 45deg < 1rad, true]
 
 // Assignment.
 #let x = "some"
 #let y = "some"
-[test (x = y = "") == none and x == none and y == "", true]
+#[test (x = y = "") == none and x == none and y == "", true]
 
 // Modify-assign operators.
 #let x = 0
-{ x = 10 }       [test x, 10]
-{ x -= 5 }       [test x, 5]
-{ x += 1 }       [test x, 6]
-{ x *= x }       [test x, 36]
-{ x /= 2.0 }     [test x, 18.0]
-{ x = "some" }   [test x, "some"]
-{ x += "thing" } [test x, "something"]
+{ x = 10 }       #[test x, 10]
+{ x -= 5 }       #[test x, 5]
+{ x += 1 }       #[test x, 6]
+{ x *= x }       #[test x, 36]
+{ x /= 2.0 }     #[test x, 18.0]
+{ x = "some" }   #[test x, "some"]
+{ x += "thing" } #[test x, "something"]
 
 // Error: 1:3-1:4 unknown variable
 { z = 1 }
@@ -94,21 +94,21 @@
 #let box = ""; { box = "hi" }
 
 // Parentheses.
-[test (a), 2]
-[test (2), 2]
-[test (1+2)*3, 9]
+#[test (a), 2]
+#[test (2), 2]
+#[test (1+2)*3, 9]
 
 // Error: 1:3-1:3 expected expression
 {-}
 
-// Error: 1:10-1:10 expected expression
-[test {1+}, 1]
+// Error: 1:11-1:11 expected expression
+#[test {1+}, 1]
 
-// Error: 1:10-1:10 expected expression
-[test {2*}, 2]
+// Error: 1:11-1:11 expected expression
+#[test {2*}, 2]
 
-// Error: 1:7-1:16 cannot apply '-' to boolean
-[test -not true, error]
+// Error: 1:8-1:17 cannot apply '-' to boolean
+#[test -not true, error]
 
 // Error: 1:2-1:8 cannot apply 'not' to array
 {not ()}
diff --git a/tests/lang/typ/headings.typ b/tests/lang/typ/headings.typ
index e63574ca..a1bb3753 100644
--- a/tests/lang/typ/headings.typ
+++ b/tests/lang/typ/headings.typ
@@ -1,48 +1,41 @@
 // Test different numbers of hashtags.
 
 // Valid levels.
-# One
-### Three
-###### Six
+= One
+=== Three
+====== Six
 
 // Too many hashtags.
 // Warning: 1:1-1:8 should not exceed depth 6
-####### Seven
+======= Seven
 
 ---
 // Test heading vs. no heading.
 
 // Parsed as headings if at start of the context.
-/**/ # Heading
-{[## Heading]}
-[box][### Heading]
+/**/ = Heading
+{[== Heading]}
+#[box][=== Heading]
 
 // Not at the start of the context.
-Text with # hashtag
+Text = with=sign
 
 // Escaped.
-\# No heading
-
-// Keyword.
-// Error: 1:1-1:6 unexpected invalid token
-#nope
-
-// Not parsed as a keyword, but neither as a heading.
-Nr#1
+\= No heading
 
 ---
 // Heading continuation over linebreak.
 
 // Code blocks continue heading.
-# This {
+= This {
     "continues"
 }
 
 // Function call continues heading.
-# [box][
+= #[box][
     This,
 ] too
 
 // Without some kind of block, headings end at a line break.
-# This
+= This
 not
diff --git a/tests/lang/typ/if.typ b/tests/lang/typ/if.typ
index ee466a8d..5fb46320 100644
--- a/tests/lang/typ/if.typ
+++ b/tests/lang/typ/if.typ
@@ -52,8 +52,7 @@ a#if x b#if (x)c
 a#if true [b] #else c
 
 // Lone else.
-// Error: 2:1-2:6 unexpected keyword `#else`
-// Error: 1:8-1:8 expected identifier
+// Error: 1:1-1:6 unexpected keyword `#else`
 #else []
 
 // Condition must be boolean. If it isn't, neither branch is evaluated.
diff --git a/tests/lang/typ/let.typ b/tests/lang/typ/let.typ
index b3eadeaa..52545b2f 100644
--- a/tests/lang/typ/let.typ
+++ b/tests/lang/typ/let.typ
@@ -1,10 +1,10 @@
 // Automatically initialized with `none`.
 #let x
-[test x, none]
+#[test x, none]
 
 // Initialized with `1`.
 #let y = 1
-[test y, 1]
+#[test y, 1]
 
 // Initialize with template, not terminated by semicolon in template.
 #let v = [Hello; there]
@@ -15,10 +15,10 @@
     2,
     3,
 )
-[test x, (1, 2, 3)]
+#[test x, (1, 2, 3)]
 
 // Multiple bindings in one line.
-#let x = "a"; #let y = "b"; [test x + y, "ab"]
+#let x = "a"; #let y = "b"; #[test x + y, "ab"]
 
 // Invalid name.
 // Error: 1:6-1:7 expected identifier, found integer
@@ -43,24 +43,24 @@ The Fi#let;rst
 
 // Terminated with just a line break.
 #let v = "a"
-The Second [test v, "a"]
+The Second #[test v, "a"]
 
 // Terminated with semicolon + line break.
 #let v = "a";
-The Third [test v, "a"]
+The Third #[test v, "a"]
 
 // Terminated with just a semicolon.
-The#let v = "a"; Fourth [test v, "a"]
+The#let v = "a"; Fourth #[test v, "a"]
 
 // Terminated by semicolon even though we are in a paren group.
 // Error: 2:25-2:25 expected expression
 // Error: 1:25-1:25 expected closing paren
-The#let array = (1, 2 + ;Fifth [test array, (1, 2)]
+The#let array = (1, 2 + ;Fifth #[test array, (1, 2)]
 
 // Not terminated.
 // Error: 1:16-1:16 expected semicolon or line break
-The#let v = "a"Sixth [test v, "a"]
+The#let v = "a"Sixth #[test v, "a"]
 
 // Not terminated.
 // Error: 1:16-1:16 expected semicolon or line break
-The#let v = "a" [test v, "a"] Seventh
+The#let v = "a" #[test v, "a"] Seventh
diff --git a/tests/lang/typ/raw.typ b/tests/lang/typ/raw.typ
index 2c0890ba..a1f796b5 100644
--- a/tests/lang/typ/raw.typ
+++ b/tests/lang/typ/raw.typ
@@ -1,4 +1,4 @@
-[font 8pt]
+#[font 8pt]
 
 // Typst syntax inside.
 `#let x = 1``[f 1]`
diff --git a/tests/lang/typ/values.typ b/tests/lang/typ/values.typ
index 55712c4d..53c2ea68 100644
--- a/tests/lang/typ/values.typ
+++ b/tests/lang/typ/values.typ
@@ -37,4 +37,4 @@
 {"a\n[]\"\u{1F680}string"} \
 
 // Templates.
-{[*{"Hi"} [f 1]*]}
+{[*{"Hi"} #[f 1]*]}
diff --git a/tests/library/typ/font.typ b/tests/library/typ/font.typ
index 4be98941..57761a8f 100644
--- a/tests/library/typ/font.typ
+++ b/tests/library/typ/font.typ
@@ -1,37 +1,37 @@
 // Test configuring font properties.
 
-[font "PT Sans", 10pt]
+#[font "PT Sans", 10pt]
 
 // Set same font size in three different ways.
-[font 20pt][A]
-[font 200%][A]
-[font 15pt + 50%][A]
+#[font 20pt][A]
+#[font 200%][A]
+#[font 15pt + 50%][A]
 
 // Do nothing.
-[font][Normal]
+#[font][Normal]
 
 // Set style (is available).
-[font style: italic][Italic]
+#[font style: italic][Italic]
 
 // Set weight (is available).
-[font weight: bold][Bold]
+#[font weight: bold][Bold]
 
 // Set stretch (not available, matching closest).
-[font stretch: ultra-condensed][Condensed]
+#[font stretch: ultra-condensed][Condensed]
 
-// Error: 1:7-1:12 unexpected argument
-[font false]
+// Error: 1:8-1:13 unexpected argument
+#[font false]
 
-// Error: 3:14-3:18 expected font style, found font weight
-// Error: 2:28-2:34 expected font weight, found string
-// Error: 1:43-1:44 expected font family or array of font families, found integer
-[font style: bold, weight: "thin", serif: 0]
+// Error: 3:15-3:19 expected font style, found font weight
+// Error: 2:29-2:35 expected font weight, found string
+// Error: 1:44-1:45 expected font family or array of font families, found integer
+#[font style: bold, weight: "thin", serif: 0]
 
-// Warning: 1:15-1:19 should be between 100 and 900
-[font weight: 2700]
+// Warning: 1:16-1:20 should be between 100 and 900
+#[font weight: 2700]
 
-// Error: 1:7-1:27 unexpected argument
-[font something: "invalid"]
+// Error: 1:8-1:28 unexpected argument
+#[font something: "invalid"]
 
 ---
 // Test font fallback and class definitions.
@@ -40,17 +40,17 @@
 Emoji: 🏀
 
 // CMU Serif + Noto Emoji.
-[font "CMU Serif", "Noto Emoji"][
+#[font "CMU Serif", "Noto Emoji"][
     Emoji: 🏀
 ]
 
 // Class definitions.
-[font serif: ("CMU Serif", "Latin Modern Math", "Noto Emoji")]
-[font serif][
+#[font serif: ("CMU Serif", "Latin Modern Math", "Noto Emoji")]
+#[font serif][
     Math: ∫ α + β ➗ 3
 ]
 
 // Class definition reused.
-[font sans-serif: "Noto Emoji"]
-[font sans-serif: ("Archivo", sans-serif)]
+#[font sans-serif: "Noto Emoji"]
+#[font sans-serif: ("Archivo", sans-serif)]
 New sans-serif. 🚀
diff --git a/tests/library/typ/hv.typ b/tests/library/typ/hv.typ
index 36a6d242..67c04a12 100644
--- a/tests/library/typ/hv.typ
+++ b/tests/library/typ/hv.typ
@@ -1,22 +1,22 @@
 // Ends paragraphs.
-Tightly [v -5pt] packed
+Tightly #[v -5pt] packed
 
 // Eating up soft spacing.
-Inv [h 0pt] isible
+Inv #[h 0pt] isible
 
 // Multiple spacings in a row.
-Add [h 10pt] [h 10pt] up
+Add #[h 10pt] #[h 10pt] up
 
 // Relative to font size.
-Relative [h 100%] spacing
+Relative #[h 100%] spacing
 
 // Missing spacing.
-// Error: 1:11-1:11 missing argument: spacing
-Totally [h] ignored
+// Error: 1:12-1:12 missing argument: spacing
+Totally #[h] ignored
 
 // Swapped axes.
-[page main-dir: rtl, cross-dir: ttb, height: 80pt][
-    1 [h 1cm] 2
+#[page main-dir: rtl, cross-dir: ttb, height: 80pt][
+    1 #[h 1cm] 2
 
-    3 [v 1cm] 4 [v -1cm] 5
+    3 #[v 1cm] 4 #[v -1cm] 5
 ]
diff --git a/tests/library/typ/image.typ b/tests/library/typ/image.typ
index 2e7b1eb5..a1e886dd 100644
--- a/tests/library/typ/image.typ
+++ b/tests/library/typ/image.typ
@@ -1,39 +1,39 @@
 // Test loading different image formats.
 
 // Load an RGBA PNG image.
-[image "res/rhino.png"]
-[pagebreak]
+#[image "res/rhino.png"]
+#[pagebreak]
 
 // Load an RGB JPEG image.
-[image "res/tiger.jpg"]
+#[image "res/tiger.jpg"]
 
-// Error: 1:8-1:29 failed to load image
-[image "path/does/not/exist"]
+// Error: 1:9-1:30 failed to load image
+#[image "path/does/not/exist"]
 
-// Error: 1:8-1:29 failed to load image
-[image "typ/image-error.typ"]
+// Error: 1:9-1:30 failed to load image
+#[image "typ/image-error.typ"]
 
 ---
 // Test configuring the size and fitting behaviour of images.
 
 // Fit to width of page.
-[image "res/rhino.png"]
+#[image "res/rhino.png"]
 
 // Fit to height of page.
-[page height: 40pt][
-    [image "res/rhino.png"]
+#[page height: 40pt][
+    #[image "res/rhino.png"]
 ]
 
 // Set width explicitly.
-[image "res/rhino.png", width: 50pt]
+#[image "res/rhino.png", width: 50pt]
 
 // Set height explicitly.
-[image "res/rhino.png", height: 50pt]
+#[image "res/rhino.png", height: 50pt]
 
 // Set width and height explicitly and force stretching.
-[image "res/rhino.png", width: 25pt, height: 50pt]
+#[image "res/rhino.png", width: 25pt, height: 50pt]
 
 // Make sure the bounding-box of the image is correct.
-[align bottom, right][
-    [image "res/tiger.jpg", width: 60pt]
+#[align bottom, right][
+    #[image "res/tiger.jpg", width: 60pt]
 ]
diff --git a/tests/library/typ/page.typ b/tests/library/typ/page.typ
index 9eeddc93..97100ae9 100644
--- a/tests/library/typ/page.typ
+++ b/tests/library/typ/page.typ
@@ -1,54 +1,53 @@
 // Test configuring page sizes and margins.
 
 // Set width and height.
-[page width: 120pt, height: 120pt]
-[page width: 40pt][High]
-[page height: 40pt][Wide]
+#[page width: 120pt, height: 120pt]
+#[page width: 40pt][High]
+#[page height: 40pt][Wide]
 
 // Set all margins at once.
-[page margins: 30pt][
-    [align top, left][TL]
-    [align bottom, right][BR]
+#[page margins: 30pt][
+    #[align top, left][TL]
+    #[align bottom, right][BR]
 ]
 
 // Set individual margins.
-[page height: 40pt]
-[page left: 0pt   | align left][Left]
-[page right: 0pt  | align right][Right]
-[page top: 0pt    | align top][Top]
-[page bottom: 0pt | align bottom][Bottom]
+#[page height: 40pt]
+#[page left: 0pt   | align left][Left]
+#[page right: 0pt  | align right][Right]
+#[page top: 0pt    | align top][Top]
+#[page bottom: 0pt | align bottom][Bottom]
 
 // Ensure that specific margins override general margins.
-[page margins: 0pt, left: 20pt][Overriden]
+#[page margins: 0pt, left: 20pt][Overriden]
 
-// Error: 1:7-1:18 unknown variable
-[page nonexistant]
+// Error: 1:8-1:19 unknown variable
+#[page nonexistant]
 
-// Error: 1:17-1:20 aligned axis
-[page main-dir: ltr]
+// Error: 1:18-1:21 aligned axis
+#[page main-dir: ltr]
 
 // Flipped predefined paper.
-[page "a11", flip: true][Flipped A11]
+#[page "a11", flip: true][Flipped A11]
 
 // Flipped custom page size.
-[page width: 40pt, height: 120pt]
-[page flip: true]
+#[page width: 40pt, height: 120pt]
+#[page flip: true]
 Wide
 
 // Test changing the layouting directions of pages.
-
-[page height: 50pt, main-dir: btt, cross-dir: rtl]
+#[page height: 50pt, main-dir: btt, cross-dir: rtl]
 Right to left!
 
 ---
 // Test a combination of pages with bodies and normal content.
 
-[page height: 50pt]
+#[page height: 50pt]
 
-[page][First]
-[page][Second]
-[pagebreak]
+#[page][First]
+#[page][Second]
+#[pagebreak]
 Fourth
-[page][]
+#[page][]
 Sixth
-[page][Seventh and last]
+#[page][Seventh and last]
diff --git a/tests/library/typ/pagebreak.typ b/tests/library/typ/pagebreak.typ
index 2f539ce0..08dd9c7b 100644
--- a/tests/library/typ/pagebreak.typ
+++ b/tests/library/typ/pagebreak.typ
@@ -1,3 +1,3 @@
 First of two
-[pagebreak]
-[page height: 40pt]
+#[pagebreak]
+#[page height: 40pt]
diff --git a/tests/library/typ/rgb.typ b/tests/library/typ/rgb.typ
index f778b2d1..e7b40518 100644
--- a/tests/library/typ/rgb.typ
+++ b/tests/library/typ/rgb.typ
@@ -1,17 +1,17 @@
 // Check the output.
-[rgb 0.0, 0.3, 0.7]
+#[rgb 0.0, 0.3, 0.7]
 
 // Alpha channel.
-[rgb 1.0, 0.0, 0.0, 0.5]
+#[rgb 1.0, 0.0, 0.0, 0.5]
 
-// Warning: 2:6-2:9 should be between 0.0 and 1.0
-// Warning: 1:11-1:15 should be between 0.0 and 1.0
-[rgb -30, 15.5, 0.5]
+// Warning: 2:7-2:10 should be between 0.0 and 1.0
+// Warning: 1:12-1:16 should be between 0.0 and 1.0
+#[rgb -30, 15.5, 0.5]
 
-// Error: 1:6-1:10 missing argument: blue component
-[rgb 0, 1]
+// Error: 1:7-1:11 missing argument: blue component
+#[rgb 0, 1]
 
-// Error: 3:5-3:5 missing argument: red component
-// Error: 2:5-2:5 missing argument: green component
-// Error: 1:5-1:5 missing argument: blue component
-[rgb]
+// Error: 3:6-3:6 missing argument: red component
+// Error: 2:6-2:6 missing argument: green component
+// Error: 1:6-1:6 missing argument: blue component
+#[rgb]