Text replacement show rules

7 files changed, 79 insertions, 7 deletions

diff --git a/tests/ref/graphics/shape-rect.png b/tests/ref/graphics/shape-rect.png
index 5bbaf3db..5ba78f97 100644
--- a/tests/ref/graphics/shape-rect.png
+++ b/tests/ref/graphics/shape-rect.png
diff --git a/tests/ref/style/show-text.png b/tests/ref/style/show-text.png
new file mode 100644
index 00000000..53c9d132
--- /dev/null
+++ b/tests/ref/style/show-text.png
diff --git a/tests/typ/graphics/shape-rect.typ b/tests/typ/graphics/shape-rect.typ
index a29550b5..5495da8c 100644
--- a/tests/typ/graphics/shape-rect.typ
+++ b/tests/typ/graphics/shape-rect.typ
@@ -41,16 +41,16 @@
 
 ---
 // Outset padding.
+#set raw(lang: "rust")
 #show node: raw as [
-  #set text("IBM Plex Mono", 8pt)
-  #h(.7em, weak: true)
-  #rect(radius: 3pt, outset: (y: 3pt, x: 2.5pt), fill: rgb(239, 241, 243))[{node.text}]
-  #h(.7em, weak: true)
+  #set text(8pt)
+  #h(5.6pt, weak: true)
+  #rect(radius: 3pt, outset: (y: 3pt, x: 2.5pt), fill: rgb(239, 241, 243), node)
+  #h(5.6pt, weak: true)
 ]
 
-Use the `*const ptr` pointer.
+Use the `*const T` pointer or the `&mut T` reference.
 
 ---
 // Error: 15-38 unexpected key "cake"
 #rect(radius: (left: 10pt, cake: 5pt))
-
diff --git a/tests/typ/style/show-node.typ b/tests/typ/style/show-node.typ
index 4fcee9aa..07c30f19 100644
--- a/tests/typ/style/show-node.typ
+++ b/tests/typ/style/show-node.typ
@@ -63,5 +63,9 @@ Another text.
 #show _: upper as {}
 
 ---
+// Error: 7-10 expected function, string or regular expression, found color
+#show red as []
+
+---
 // Error: 2-16 set, show and wrap are only allowed directly in markup
 {show list as a}
diff --git a/tests/typ/style/show-recursive.typ b/tests/typ/style/show-recursive.typ
index 423bbd80..9e93739c 100644
--- a/tests/typ/style/show-recursive.typ
+++ b/tests/typ/style/show-recursive.typ
@@ -43,7 +43,7 @@
 
 ---
 // Test multi-recursion with nested lists.
-#set rect(padding: 2pt)
+#set rect(inset: 2pt)
 #show v: list as rect(stroke: blue, v)
 #show v: list as rect(stroke: red, v)
 
diff --git a/tests/typ/style/show-text.typ b/tests/typ/style/show-text.typ
new file mode 100644
index 00000000..3bc116f5
--- /dev/null
+++ b/tests/typ/style/show-text.typ
@@ -0,0 +1,58 @@
+// Test text replacement show rules.
+
+---
+// Test classic example.
+#set text("Roboto")
+#show phrase: "Der Spiegel" as text(smallcaps: true, [#phrase])
+Die Zeitung Der Spiegel existiert.
+
+---
+// Another classic example.
+#show "TeX" as [T#h(-0.145em)#move(dy: 0.233em)[E]#h(-0.135em)X]
+#show name: regex("(Lua)?(La)?TeX") as box(text("Latin Modern Roman")[#name])
+
+TeX, LaTeX, LuaTeX and LuaLaTeX!
+
+---
+// Test out-of-order guarding.
+#show "Good" as [Typst!]
+#show "Typst" as [Fun!]
+#show "Fun" as [Good!]
+#show enum as []
+
+Good \
+Fun \
+Typst \
+
+---
+// Test that replacements happen exactly once.
+#show "A" as [BB]
+#show "B" as [CC]
+AA (8)
+
+---
+// Test caseless match and word boundaries.
+#show regex("(?i)\bworld\b") as [🌍]
+
+Treeworld, the World of worlds, is a world.
+
+---
+// This is a fun one.
+#set par(justify: true)
+#show letter: regex("\S") as rect(inset: 2pt)[#upper(letter)]
+#lorem(5)
+
+---
+// See also: https://github.com/mTvare6/hello-world.rs
+#show it: regex("(?i)rust") as [#it (🚀)]
+Rust is memory-safe and blazingly fast. Let's rewrite everything in rust.
+
+---
+// Replace worlds but only in lists.
+#show node: list as [
+  #show "World" as [🌎]
+  #node
+]
+
+World
+- World
diff --git a/tests/typ/utility/regex.typ b/tests/typ/utility/regex.typ
new file mode 100644
index 00000000..4cc7d1ea
--- /dev/null
+++ b/tests/typ/utility/regex.typ
@@ -0,0 +1,10 @@
+// Test regexes.
+// Ref: false
+
+---
+{
+  let re = regex("(La)?TeX")
+  test(re.matches("La"), false)
+  test(re.matches("TeX"), true)
+  test(re.matches("LaTeX"), true)
+}