Test: the idle place test waits for the link scan in real time

tests_place::a_file_placed_while_idle_follows_its_changes failed at random in CI (twice on 2026-10-11): while the link scan ran on its worker thread, the test's clock moved on by whole simulated seconds per 5 ms of real time, so on a busy machine the 10 simulated seconds ran out before the scan had read the changed file. The clock now waits for the scan (up to 20 real seconds).
Merge pull request #1213 from storytold/fix/1197-compound-holes
2026-10-11 22:02:50 +07:00 · 2026-10-11 22:02:36 +07:00 · 2026-10-11 21:32:23 +07:00 · 2026-10-11 20:57:47 +07:00 · 2026-10-11 20:47:46 +07:00 · 2026-10-11 20:07:03 +07:00
28 changed files with 318 additions and 41 deletions
@@ -35,7 +35,7 @@ jobs:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - name: Build and test in a FreeBSD VM
        uses: vmactions/freebsd-vm@c46abacb49f09938ca4e1702d15d836285d694cc # v1
@@ -68,12 +68,12 @@ jobs:
    timeout-minutes: 150
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR in the VM).
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR in the VM).
      # Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - name: Package in a FreeBSD VM
        uses: vmactions/freebsd-vm@c46abacb49f09938ca4e1702d15d836285d694cc
@@ -72,12 +72,12 @@ jobs:
      VECTORCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
      # step). Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - uses: dtolnay/rust-toolchain@stable
        with:
@@ -131,12 +131,12 @@ jobs:
      VECTORCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
      # step). Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - uses: dtolnay/rust-toolchain@stable
        with:
@@ -192,12 +192,12 @@ jobs:
      NFPM_VERSION: 2.47.0
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
      # step). Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - name: Install build and packaging tools
        run: |
@@ -293,12 +293,12 @@ jobs:
      VECTORCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR in the VM).
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR in the VM).
      # Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - uses: dtolnay/rust-toolchain@stable
        if: inputs.version != ''
@@ -345,12 +345,12 @@ jobs:
      TRUNK_VERSION: 0.21.14
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
      # step). Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - uses: dtolnay/rust-toolchain@stable
        with:
@@ -391,12 +391,12 @@ jobs:
      VECTORCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
    steps:
      - uses: actions/checkout@v7
-      # Japanese UI/document fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
+      # Japanese, Chinese, Arabic and Thai fonts, embedded by crates/text/build.rs (CRAFT_FONTS_DIR on the build
      # step). Bump the commit deliberately; see craftrules standards/fonts.md.
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          repository: storytold/craft-fonts
-          ref: abb83316d96aa59c1cf64784289e378fe9fa5695
+          ref: 3d9ab3a132ed0eff457e424226a435a901da30d3
          path: craft-fonts
      - uses: dtolnay/rust-toolchain@stable
        with:
@@ -1860,11 +1860,32 @@ checksum = "d56e28588da92eee5c3201a6eff33fabdd49b62269c8938d4ff050ce4d900deb"
 dependencies = [
 "displaydoc",
 "litemap",
+ "serde",
 "tinystr",
 "writeable",
 "zerovec",
 ]

+[[package]]
+name = "icu_locale_fallback"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "251af8e57c9400e3eb58242fe5b8b1152b2a64fdf4cf632f923c38ccee6f2fa9"
+dependencies = [
+ "icu_locale_core",
+ "icu_locale_fallback_data",
+ "icu_provider",
+ "potential_utf",
+ "tinystr",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_locale_fallback_data"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "decf2a22ec8fa68f1a0c1129a3f8583f8f8bc24e8b9ccbe98ead99f62a4dc3a8"
+
 [[package]]
 name = "icu_normalizer"
 version = "2.3.0"
@@ -1914,6 +1935,8 @@ checksum = "d27bbb9d3abbefac45d55f647c9de1d44aafcd1186eb91879afef17c396c3e73"
 dependencies = [
 "displaydoc",
 "icu_locale_core",
+ "serde",
+ "stable_deref_trait",
 "writeable",
 "yoke",
 "zerofrom",
@@ -1921,6 +1944,29 @@ dependencies = [
 "zerovec",
 ]

+[[package]]
+name = "icu_segmenter"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82d07aafccd67af15d02512a6adf5896fbc5ed00f2e99b471d2efa14016db3db"
+dependencies = [
+ "core_maths",
+ "icu_collections",
+ "icu_locale_fallback",
+ "icu_provider",
+ "icu_segmenter_data",
+ "potential_utf",
+ "smallvec",
+ "utf8_iter",
+ "zerovec",
+]
+
+[[package]]
+name = "icu_segmenter_data"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae293c039020f9ec10710af98d29ce6aa2051486638b49c9a6409f3b4a9e98ad"
+
 [[package]]
 name = "idna"
 version = "1.1.0"
@@ -3152,6 +3198,8 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d83eb9bc6d8e5cf568e7a1101d60ee05e81ed50ea106026f3d18deeb046d7661"
 dependencies = [
+ "serde_core",
+ "writeable",
 "zerovec",
 ]

@@ -4133,6 +4181,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b1e27c91459209c2986af3dcf603a5a74a4368754ce37414f59acc971167f643"
 dependencies = [
 "displaydoc",
+ "serde_core",
 "zerovec",
 ]

@@ -4806,6 +4855,7 @@ name = "vectorcraft-text"
 version = "0.9.0"
 dependencies = [
 "harfrust 0.13.3",
+ "icu_segmenter",
 "kurbo 0.13.1",
 "log",
 "skrifa 0.47.0",
@@ -6184,6 +6234,7 @@ dependencies = [
 "displaydoc",
 "yoke",
 "zerofrom",
+ "zerovec",
 ]

 [[package]]
@@ -6192,6 +6243,7 @@ version = "0.11.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bb0464e17806c1d976d5cba29399c7f08e516e279e2ba493f63123b5fca67dd8"
 dependencies = [
+ "serde",
 "yoke",
 "zerofrom",
 "zerovec-derive",
@@ -127,7 +127,7 @@ Ranked; detail in [docs/roadmap.md](docs/roadmap.md) and [docs/gaps.md](docs/gap

 | Date | What landed |
 |---|---|
-| 2026-10-11 | Effect › Brush Strokes: Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e (G2). Command parameters from agents and files checked before anything changes (paint, place, cuts, dashes, crop, asset ids, anchors, paths, distort; #984–#999); command dialogs keep whole numbers whole, so Create Object Mosaic takes the tiles typed (#1000); stepper arrows take Shift (×10) and Ctrl/Cmd (÷10) like the arrow keys (#991). Exports and Rasterize supersample Art Optimized edges, so shapes meeting edge to edge leave no seam (#983). Character and paragraph styles take leading, kerning, mojikumi and the other attributes left out at their defaults (#1001). Drawing, typing and pasting with no layer shown and unlocked is refused instead of adding art to a hidden or locked layer (#1002). MCP `add_text` gives type on or in a path the colour asked for (#1003). MCP `screenshot` of a connected app renders the artboard asked for (#1004). `vectorcraft-cli run` ends quietly when its reader closes early (#1005). Select › All on Active Artboard selects on the artboard made active, not always the first (#1006). Reverse Gradient keeps off-centre midpoints, mirrored (#1007). A polar grid with no radial dividers draws none (#1008). Use Precise Cursors also covers the Pen's join pointer (#1009). SVGs with one absolute and one unitless root side import at their size, unstretched (#1010). DXF US survey inches, yards and miles open at their size and name (#1011). A file placed into a document with no other links follows its first change even while the app sits idle (#1031). PDF import keeps the style a font name says when the file doesn't embed the font (#1023). Shift selects ruler guides and art together, and Delete removes both (#1022). Open filled paths are hit by their fill on every side, the rotate cursor bows around the corner it is at, the flip icons match their flips, the Color Picker previews on the selection, and Properties › Transform reaches Scale Corners and Scale Strokes & Effects (#1036). Offset Path and the other booleans finish on outlines where the sweep used to loop until memory ran out (linesweeper 0.5, #1028). Floating panel groups stack into sets that move together, collapse to their tabs and dock as extra dock columns that scroll (#1020). Ruler guides live on layers: listed in the Layers panel, shown, hidden, locked, duplicated, merged and deleted with their layer, and moved between layers (#1021). A `.ai` whose editing data uses global process colours (`Xk`/`XK`) or pattern fills keeps its sublayers: the colours come in as global swatches at their tint, the patterns as pattern swatches (#1025). A `.ai` in PostScript form opens through its layers, read from the program itself, also when it names the prolog defining its operators without including it, as Rhino and other CAD apps write it (#1027). A fill or stroke chosen while the Type tool has characters selected colours just those characters (#1063). Scaled type shows its scaled font size, leading, baseline shift and horizontal scale in the Character panel, and a size typed there is the size you get (#1034). Character panel menu › Proportional Metrics sets Japanese and Chinese full-width glyphs on the font's proportional widths in horizontal type (#966). Align, Distribute, Move, Arrange, Lock, Hide, Ungroup and other Object commands that would change nothing no longer record an undo step or mark the document changed (#1060). Spot colours defined in Lab open with their Lab values from `.ai` and PDF files, instead of as wrong RGB colours or their CMYK equivalents (#1032). Build scripts leave a generated source they wouldn't change untouched, so the next build doesn't compile most of the workspace again where file times lose their sub-second part (#1051). A fill colour recolours the gradient mesh point last clicked with the Mesh tool or Direct Selection, and a Mesh tool click on a mesh's point selects that mesh (#1052). The All Tools drawer stays two tools wide instead of filling a wide window (#1054). Text Wrap's Make, Release and Options refuse a list of object ids with a malformed or unknown id instead of skipping it (#1055). A freeform gradient line with a malformed point index is refused instead of being shortened to the indices that are valid (#1056). The Corners dialog (`ui.corners`) refuses a malformed object id or a listed anchor that isn't a corner instead of editing the selection or the other corners (#1057). New View refuses a centre that isn't exactly [x, y] and a rotation that isn't a number, instead of trimming the one and saving the other as 0° (#1058). The command sweeps try junk scale, spacing and artboard values too, which they had skipped since before those bugs were fixed (#1059). EPS and PostScript `arc` and `arcn` with huge angles no longer hang the import, and an arc whose angles are whole turns apart is empty, as the PostScript reference defines it (#1062). Align and DisLine truncated
+| 2026-10-11 | Effect › Brush Strokes: Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e (G2). Command parameters from agents and files checked before anything changes (paint, place, cuts, dashes, crop, asset ids, anchors, paths, distort; #984–#999); command dialogs keep whole numbers whole, so Create Object Mosaic takes the tiles typed (#1000); stepper arrows take Shift (×10) and Ctrl/Cmd (÷10) like the arrow keys (#991). Exports and Rasterize supersample Art Optimized edges, so shapes meeting edge to edge leave no seam (#983). Character and paragraph styles take leading, kerning, mojikumi and the other attributes left out at their defaults (#1001). Drawing, typing and pasting with no layer shown and unlocked is refused instead of adding art to a hidden or locked layer (#1002). MCP `add_text` gives type on or in a path the colour asked for (#1003). MCP `screenshot` of a connected app renders the artboard asked for (#1004). `vectorcraft-cli run` ends quietly when its reader closes early (#1005). Select › All on Active Artboard selects on the artboard made active, not always the first (#1006). Reverse Gradient keeps off-centre midpoints, mirrored (#1007). A polar grid with no radial dividers draws none (#1008). Use Precise Cursors also covers the Pen's join pointer (#1009). SVGs with one absolute and one unitless root side import at their size, unstretched (#1010). DXF US survey inches, yards and miles open at their size and name (#1011). A file placed into a document with no other links follows its first change even while the app sits idle (#1031). PDF import keeps the style a font name says when the file doesn't embed the font (#1023). Shift selects ruler guides and art together, and Delete removes both (#1022). Open filled paths are hit by their fill on every side, the rotate cursor bows around the corner it is at, the flip icons match their flips, the Color Picker previews on the selection, and Properties › Transform reaches Scale Corners and Scale Strokes & Effects (#1036). Offset Path and the other booleans finish on outlines where the sweep used to loop until memory ran out (linesweeper 0.5, #1028). Floating panel groups stack into sets that move together, collapse to their tabs and dock as extra dock columns that scroll (#1020). Ruler guides live on layers: listed in the Layers panel, shown, hidden, locked, duplicated, merged and deleted with their layer, and moved between layers (#1021). A `.ai` whose editing data uses global process colours (`Xk`/`XK`) or pattern fills keeps its sublayers: the colours come in as global swatches at their tint, the patterns as pattern swatches (#1025). A `.ai` in PostScript form opens through its layers, read from the program itself, also when it names the prolog defining its operators without including it, as Rhino and other CAD apps write it (#1027). A fill or stroke chosen while the Type tool has characters selected colours just those characters (#1063). Scaled type shows its scaled font size, leading, baseline shift and horizontal scale in the Character panel, and a size typed there is the size you get (#1034). Character panel menu › Proportional Metrics sets Japanese and Chinese full-width glyphs on the font's proportional widths in horizontal type (#966). Align, Distribute, Move, Arrange, Lock, Hide, Ungroup and other Object commands that would change nothing no longer record an undo step or mark the document changed (#1060). Spot colours defined in Lab open with their Lab values from `.ai` and PDF files, instead of as wrong RGB colours or their CMYK equivalents (#1032). Build scripts leave a generated source they wouldn't change untouched, so the next build doesn't compile most of the workspace again where file times lose their sub-second part (#1051). A fill colour recolours the gradient mesh point last clicked with the Mesh tool or Direct Selection, and a Mesh tool click on a mesh's point selects that mesh (#1052). The All Tools drawer stays two tools wide instead of filling a wide window (#1054). Text Wrap's Make, Release and Options refuse a list of object ids with a malformed or unknown id instead of skipping it (#1055). A freeform gradient line with a malformed point index is refused instead of being shortened to the indices that are valid (#1056). The Corners dialog (`ui.corners`) refuses a malformed object id or a listed anchor that isn't a corner instead of editing the selection or the other corners (#1057). New View refuses a centre that isn't exactly [x, y] and a rotation that isn't a number, instead of trimming the one and saving the other as 0° (#1058). The command sweeps try junk scale, spacing and artboard values too, which they had skipped since before those bugs were fixed (#1059). EPS and PostScript `arc` and `arcn` with huge angles no longer hang the import, and an arc whose angles are whole turns apart is empty, as the PostScript reference defines it (#1062). Align and DisLine truncated
 | 2026-10-10 | Initial live Revolve (Effect › 3D and Materials, #846, #605), in its own `three-d` crate. Progress docs re-measured and restructured to the craftrules standard (this page, `docs/target-app-parity.md`, `gaps.md`, `ui-parity.md`, the format, hardware, localization, effects and type checklists). Same day: v0.8.0; Effect › Distort, Pixelate and Texture filters (13); German interface; Variables (data merge); Graph Type value axes and tick marks; restart when the first frame never reaches the screen (#964) |
 | 2026-10-09 | Radial Blur, Smart Blur, Unsharp Mask (gap 2 begins); 340 commits, the busiest day |
 | 2026-10-08 | v0.5.0–v0.7.0; community contributions: Pen and shape-tool modifiers, Layers, Artboards, Japanese composition, Hebrew/Arabic type, interface languages, saved selections |
@@ -652,11 +652,19 @@ fn compound_make(s: &mut Session, _: &Value) -> Result<Value> {
            d.remove(*id)?;
        }
        let ch = d.node_mut(cid).and_then(|n| n.children_mut()).ok_or(EngineError::NoNode(cid))?;
-        for mut p in paths {
+        // The paths in front run against the backmost one, so where they overlap it they cut holes
+        // under the non-zero fill rule (#1197).
+        let direction = |n: &Node| n.path_data().and_then(|pd| pd.subpaths.first()).map_or(0.0, |sp| sp.signed_area().signum());
+        let back = paths.first().map_or(0.0, |p| direction(p));
+        for (i, mut p) in paths.into_iter().enumerate() {
            let pn = Arc::make_mut(&mut p);
            pn.appearance = Appearance::default();
-            if let NodeKind::Path { live, .. } = &mut pn.kind {
+            let flip = i > 0 && back != 0.0 && direction(pn) == back;
+            if let NodeKind::Path { path, live, .. } = &mut pn.kind {
                *live = None;
+                if flip {
+                    path.reverse();
+                }
            }
            ch.push(p);
        }
@@ -1699,3 +1699,19 @@ fn file_list_lists_a_folder_within_the_read_root() {
    assert!(s.execute("file.list", &json!({})).is_err());
    let _ = std::fs::remove_dir_all(base);
 }
+
+/// #1197: Make Compound Path cuts holes where the paths in front overlap the backmost one, also
+/// when they were drawn running the same way.
+#[test]
+fn a_compound_path_has_holes_where_its_paths_overlap() {
+    let mut s = session();
+    let square = rect(&mut s, 0.0, 0.0, 100.0, 100.0);
+    let diamond = NodeId(s.execute("path.create", &json!({"d": "M50 -20 L120 50 L50 120 L-20 50 Z"})).unwrap()["id"].as_u64().unwrap());
+    s.execute("select.set", &json!({"ids": [square.0, diamond.0]})).unwrap();
+    let c = NodeId(s.execute("object.compoundPath.make", &json!({})).unwrap()["id"].as_u64().unwrap());
+    let hit =
+        |x: f64, y: f64| vectorcraft_doc::hit::hit_test(&s.doc().unwrap().doc, Point::new(x, y), Default::default()).map(|h| h.top_object(None));
+    assert_eq!(hit(50.0, 50.0), None, "the overlap is a hole");
+    assert_eq!(hit(3.0, 3.0), Some(c), "the square's corner is filled");
+    assert_eq!(hit(110.0, 50.0), Some(c), "the diamond's point outside the square is filled");
+}
@@ -21,6 +21,10 @@ subsetter = { version = "0.2", default-features = false, features = ["variable-f
 unicode-bidi = "0.3.18"
 unicode-general-category = "1"
 unicode-script = "0.5"
+# Word boundaries in scripts written without spaces between words (Thai, Lao, Khmer, Myanmar), where
+# lines may break: ICU4X's line segmenter (Unicode-3.0, as icu_properties already in the build),
+# with its dictionaries on the desktop and its far smaller LSTM models on the web.
+icu_segmenter = "2.3"
 # Grapheme clusters (a Thai consonant with its vowel and tone marks, an accented letter, an emoji
 # sequence) for caret movement; MIT OR Apache-2.0, already in the build.
 unicode-segmentation = "1.13"
@@ -1,8 +1,8 @@
 //! Fonts from the optional craft-fonts build input (<https://github.com/storytold/craft-fonts>).
 //!
 //! Built with `CRAFT_FONTS_DIR=<craft-fonts checkout>`, [`CRAFT_FONTS`] holds every font in its
-//! manifest (Japanese UI and document fonts, and Arabic fonts); built without it, it is empty and Japanese
-//! text falls back to the installed system fonts. Release builds always set it. See `build.rs`
+//! manifest (Japanese UI and document fonts, Arabic fonts and Noto Sans Thai); built without it,
+//! it is empty and that text falls back to the installed system fonts. Release builds always set it. See `build.rs`
 //! and craftrules `standards/fonts.md`.

 /// A font from the optional craft-fonts build input (empty unless built with `CRAFT_FONTS_DIR`).
@@ -39,6 +39,10 @@ impl CraftFont {
    pub fn is_arabic(&self) -> bool {
        self.scripts.contains(&"Arab")
    }
+    /// Is the font for Thai text?
+    pub fn is_thai(&self) -> bool {
+        self.scripts.contains(&"Thai")
+    }
    /// A serif (Mincho) family, for document text.
    pub fn is_mincho(&self) -> bool {
        self.family.contains("Mincho")
@@ -63,11 +67,13 @@ pub fn japanese_document_fonts() -> Vec<&'static CraftFont> {

 /// The craft-fonts faces the document font database loads: the Japanese ones in
 /// [`japanese_document_fonts`] order, then the Arabic ones in manifest order (Noto Sans Arabic
-/// first: the fallback for Arabic text; the other families are picked by name). Empty when built
-/// without craft-fonts.
+/// first: the fallback for Arabic text; the other families are picked by name), then the Thai ones
+/// (Noto Sans Thai: the fallback for Thai text where no Thai font is installed, and on the web).
+/// Empty when built without craft-fonts.
 pub fn document_fonts() -> Vec<&'static CraftFont> {
    let mut v = japanese_document_fonts();
    v.extend(CRAFT_FONTS.iter().filter(|f| f.is_arabic() && !f.is_japanese()));
+    v.extend(CRAFT_FONTS.iter().filter(|f| f.is_thai() && !f.is_japanese() && !f.is_arabic()));
    v
 }

@@ -104,8 +110,10 @@ mod tests {
            assert!(name.ends_with(".ttf") || name.ends_with(".otf"), "{}", w.url);
            assert!(w.integrity.starts_with("sha256-") && w.integrity.len() == "sha256-".len() + 44, "{}", w.integrity);
        }
+        // The fallbacks the first frame may need: Noto Sans Arabic and Noto Sans Thai, where the
+        // checkout has them.
        let startup: Vec<_> = WEB_FONTS.iter().filter(|w| w.startup).map(|w| w.family).collect();
-        let noto = CRAFT_FONTS.iter().any(|f| f.family == "Noto Sans Arabic");
-        assert_eq!(startup, if noto { vec!["Noto Sans Arabic"] } else { vec![] });
+        let expected: Vec<_> = ["Noto Sans Arabic", "Noto Sans Thai"].into_iter().filter(|n| CRAFT_FONTS.iter().any(|f| f.family == *n)).collect();
+        assert_eq!(startup, expected);
    }
 }
@@ -205,32 +205,49 @@ pub fn next_cluster(s: &str, i: usize) -> usize {
    GraphemeCursor::new(i, s.len(), true).next_boundary(s, 0).ok().flatten().unwrap_or(s.len())
 }

+/// Part of a word: a letter, digit or mark (Thai vowel and tone marks, combining accents), an
+/// underscore or an apostrophe.
 fn is_word_char(c: char) -> bool {
-    c.is_alphanumeric() || c == '_' || c == '\'' || c == '’'
+    use unicode_general_category::{GeneralCategory as G, get_general_category};
+    c.is_alphanumeric() || matches!(c, '_' | '\'' | '’') || matches!(get_general_category(c), G::NonspacingMark | G::SpacingMark | G::EnclosingMark)
 }

-/// Start of the previous word (Cmd/Alt+Left).
+/// Is byte `b` of `s` (with `breaks`, its [`crate::shape::unspaced_word_breaks`]) a boundary
+/// between two words of Thai, Lao, Khmer or Myanmar, which no space separates?
+fn inner_word_break(s: &str, breaks: &[usize], b: usize) -> bool {
+    use crate::shape::is_unspaced_script;
+    breaks.binary_search(&b).is_ok()
+        && s.get(b..).and_then(|t| t.chars().next()).is_some_and(is_unspaced_script)
+        && s.get(..b).and_then(|t| t.chars().next_back()).is_some_and(is_unspaced_script)
+}
+
+/// Start of the previous word (Cmd/Alt+Left). Thai (Lao, Khmer, Myanmar) words end where their
+/// script's word boundaries are, spaces or not.
 pub fn prev_word(s: &str, i: usize) -> usize {
    let i = floor_char(s, i);
+    let breaks = crate::shape::unspaced_word_breaks(s);
    let chars: Vec<(usize, char)> = s[..i].char_indices().collect();
    let mut k = chars.len();
    while k > 0 && !is_word_char(chars[k - 1].1) {
        k -= 1;
    }
-    while k > 0 && is_word_char(chars[k - 1].1) {
+    let end = k;
+    while k > 0 && is_word_char(chars[k - 1].1) && !(k < end && inner_word_break(s, &breaks, chars[k].0)) {
        k -= 1;
    }
    chars.get(k).map(|c| c.0).unwrap_or(i)
 }

-/// End of the next word (Cmd/Alt+Right).
+/// End of the next word (Cmd/Alt+Right): see [`prev_word`].
 pub fn next_word(s: &str, i: usize) -> usize {
    let i = floor_char(s, i);
+    let breaks = crate::shape::unspaced_word_breaks(s);
    let mut it = s[i..].char_indices().peekable();
    while it.peek().is_some_and(|(_, c)| !is_word_char(*c)) {
        it.next();
    }
-    while it.peek().is_some_and(|(_, c)| is_word_char(*c)) {
+    let start = it.peek().map(|(k, _)| i + k);
+    while it.peek().is_some_and(|(k, c)| is_word_char(*c) && !(Some(i + k) != start && inner_word_break(s, &breaks, i + k))) {
        it.next();
    }
    it.peek().map(|(k, _)| i + k).unwrap_or(s.len())
@@ -260,16 +277,18 @@ pub fn word_at(s: &str, i: usize) -> Range<usize> {
    if k == 2 {
        return at..at + c.len_utf8();
    }
+    // Thai (Lao, Khmer, Myanmar) words also end where their script's word boundaries are.
+    let breaks = if k == 0 { crate::shape::unspaced_word_breaks(s) } else { vec![] };
    let mut a = at;
    for (p, d) in s[..at].char_indices().rev() {
-        if class(d) != k {
+        if class(d) != k || inner_word_break(s, &breaks, a) {
            break;
        }
        a = p;
    }
    let mut b = at;
    for (p, d) in s[at..].char_indices() {
-        if class(d) != k {
+        if class(d) != k || (b > at && inner_word_break(s, &breaks, b)) {
            break;
        }
        b = at + p + d.len_utf8();
@@ -574,10 +574,12 @@ impl FontClass {
        [FontClass::Serif, FontClass::Sans, FontClass::Rounded, FontClass::Script, FontClass::Monospaced, FontClass::Decorative];
 }

-/// What a font menu filters on: whether a family sets Japanese, and its kind.
+/// What a font menu filters on: whether a family sets Japanese or Thai, and its kind.
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
 pub struct FontTraits {
    pub japanese: bool,
+    /// Its character map has Thai (ก and า).
+    pub thai: bool,
    pub class: FontClass,
 }

@@ -595,6 +597,7 @@ impl FontTraits {
        };
        // Hiragana (bit 49) or Katakana (bit 50) in the Unicode ranges, or the JIS code page.
        let japanese = ranges2 & (0b11 << 17) != 0 || codepages & (1 << 17) != 0 || has_japanese_name;
+        let thai = ['\u{0E01}', '\u{0E32}'].iter().all(|c| font.charmap().map(*c).is_some());
        let family_type = panose.first().copied().unwrap_or(0);
        let serif_style = panose.get(1).copied().unwrap_or(0);
        let proportion = panose.get(3).copied().unwrap_or(0);
@@ -692,7 +695,7 @@ impl FontTraits {
        } else {
            FontClass::Other
        };
-        FontTraits { japanese, class }
+        FontTraits { japanese, thai, class }
    }
 }

@@ -13,7 +13,8 @@ use crate::composer::{Breakpoint, Params, compose};
 use crate::fontdb::FontDb;
 use crate::hyphen::hyphen_points;
 use crate::shape::{
-    Punct, SGlyph, Tcy, cap_x_heights, hyphen_glyph, is_cjk, no_line_end, no_line_start, punct, shape_range, soft_line_start, style_metrics,
+    Punct, SGlyph, Tcy, cap_x_heights, hyphen_glyph, is_cjk, mark_word_ends, no_line_end, no_line_start, punct, shape_range, soft_line_start,
+    style_metrics,
 };
 use crate::{Composer, FirstBaseline, InlineGlyph, LayoutOptions, LineInfo, OtFeatures, PositionedGlyph, TextLayout, VerticalAlign};

@@ -1184,6 +1185,7 @@ mod wrapping_tests {
                ch,
                tcy: None,
                inline: None,
+                word_end: false,
                lead: 0.0,
                proportional: false,
                vpal: None,
@@ -1442,6 +1444,8 @@ fn flow(cx: &mut Ctx<'_>, paras: &[Range<usize>], t: &TextObject, regions: Optio
        let bidi = para_bidi(text.get(pr.clone()).unwrap_or_default(), para.direction);
        let rtl = is_rtl(bidi.as_ref());
        let mut sg = cx.shape_para(pr.clone(), bidi.as_ref());
+        // Thai, Lao, Khmer and Myanmar break lines between words, not at spaces.
+        mark_word_ends(text.get(pr.clone()).unwrap_or_default(), pr.start, &mut sg);
        // Japanese composition: consecutive punctuation shares one half-em space.
        let compressed = if para.mojikumi == Mojikumi::LineEndHalf { compress_punctuation(&mut sg) } else { vec![] };
        // …and a quarter em between Japanese and Latin text.
@@ -59,6 +59,9 @@ pub(crate) struct SGlyph {
    pub level: Level,
    /// An inline graphic ([`vectorcraft_doc::TextRun::inline`]) standing in for a glyph.
    pub inline: Option<InlineBox>,
+    /// A word of a script written without spaces (Thai, Lao, Khmer, Myanmar) ends after the
+    /// glyph's cluster, so a line may break there ([`mark_word_ends`]).
+    pub word_end: bool,
 }

 /// How `vpal` moves an upright glyph in vertical type and changes its length down the column, in
@@ -102,7 +105,7 @@ impl SGlyph {
    }
    /// A line may break after this glyph.
    pub fn break_after(&self) -> bool {
-        self.is_space() || matches!(self.ch, '-' | '\u{2010}' | '\u{2013}' | '\u{2014}' | '/' | SOFT_HYPHEN) || is_cjk(self.ch)
+        self.is_space() || self.word_end || matches!(self.ch, '-' | '\u{2010}' | '\u{2013}' | '\u{2014}' | '/' | SOFT_HYPHEN) || is_cjk(self.ch)
    }
    /// A soft (discretionary) hyphen: invisible unless a line breaks after it.
    pub fn is_soft_hyphen(&self) -> bool {
@@ -232,6 +235,43 @@ pub(crate) fn punct(c: char) -> Option<Punct> {
    }
 }

+/// Is `c` of a script written without spaces between words, whose line breaks need a model of its
+/// words: Thai, Lao, Khmer or Myanmar (UAX #14's class SA)?
+pub(crate) fn is_unspaced_script(c: char) -> bool {
+    matches!(c.script(), Script::Thai | Script::Lao | Script::Khmer | Script::Myanmar)
+}
+
+/// The byte offsets of `text` where a word of Thai, Lao, Khmer or Myanmar starts or ends: where a
+/// line may break, and where the caret stops word by word, in text without spaces between words.
+/// They come from ICU4X's line segmenter (its dictionaries on the desktop, its far smaller LSTM
+/// models on the web); empty when `text` has none of those scripts. Offsets elsewhere (around
+/// other text) are UAX #14's breaks.
+pub(crate) fn unspaced_word_breaks(text: &str) -> Vec<usize> {
+    #[cfg(not(target_arch = "wasm32"))]
+    static SEGMENTER: std::sync::LazyLock<icu_segmenter::LineSegmenterBorrowed<'static>> =
+        std::sync::LazyLock::new(|| icu_segmenter::LineSegmenter::new_dictionary(Default::default()));
+    #[cfg(target_arch = "wasm32")]
+    static SEGMENTER: std::sync::LazyLock<icu_segmenter::LineSegmenterBorrowed<'static>> =
+        std::sync::LazyLock::new(|| icu_segmenter::LineSegmenter::new_auto(Default::default()));
+    if !text.chars().any(is_unspaced_script) {
+        return vec![];
+    }
+    SEGMENTER.segment_str(text).collect()
+}
+
+/// Mark the glyphs of `sg` (shaped from `text`, which starts at byte `start` of the text the
+/// glyphs index) after which a word of Thai, Lao, Khmer or Myanmar ends ([`unspaced_word_breaks`]);
+/// other text keeps its own breaks.
+pub(crate) fn mark_word_ends(text: &str, start: usize, sg: &mut [SGlyph]) {
+    let breaks: Vec<usize> = unspaced_word_breaks(text).into_iter().map(|b| b + start).collect();
+    if breaks.is_empty() {
+        return;
+    }
+    for g in sg.iter_mut().filter(|g| g.inline.is_none() && is_unspaced_script(g.ch)) {
+        g.word_end = breaks.binary_search(&(g.byte + g.len)).is_ok();
+    }
+}
+
 pub(crate) fn is_cjk(c: char) -> bool {
    matches!(c as u32, 0x2E80..=0x9FFF | 0xAC00..=0xD7AF | 0xF900..=0xFAFF | 0xFF00..=0xFFEF | 0x20000..=0x2FFFF)
 }
@@ -446,6 +486,7 @@ fn inline_glyph(face: &Arc<FontFace>, st: &CharStyle, art: &InlineArt, run: usiz
        // RTL text like any other glyph once the line is reordered.
        level,
        inline: Some(InlineBox { art: drawn, xf }),
+        word_end: false,
    }
 }

@@ -614,6 +655,7 @@ fn shape_segment(text: &str, context: &Range<usize>, seg: &Segment, feats: &OtFe
            vpal: vpal.get(gi).copied().flatten(),
            level: *level,
            inline: None,
+            word_end: false,
        });
    }
 }
@@ -728,3 +728,58 @@ fn burasagari_leaves_latin_commas_and_full_stops_inside_the_line() {
        }
    }
 }
+
+/// With craft-fonts and no installed fonts (the web), Thai is set in Noto Sans Thai, not as empty
+/// boxes. Skipped when built without craft-fonts or with a checkout that has no Thai font.
+#[test]
+fn thai_without_installed_fonts_takes_the_craft_fonts_thai_font() {
+    if !crate::CRAFT_FONTS.iter().any(|f| f.is_thai()) {
+        eprintln!("skipping: no Thai font in craft-fonts (set CRAFT_FONTS_DIR to a checkout that has one)");
+        return;
+    }
+    let l = layout(db(), &point("ภาษาไทย", style(20.0)));
+    assert!(!l.glyphs.is_empty() && l.glyphs.iter().all(|g| g.gid != 0), "no .notdef");
+    let families: Vec<String> = l.glyphs.iter().filter_map(|g| db().face_by_id(g.font_id)).map(|f| f.family.clone()).collect();
+    assert!(families.iter().all(|f| f == "Noto Sans Thai"), "{families:?}");
+}
+
+/// Thai is written without spaces between words: area type breaks its lines between words (as a
+/// model of Thai words finds them), never inside a word nor before a vowel or tone mark.
+#[test]
+fn thai_lines_break_between_words() {
+    let text = "สวัสดีครับ ภาษาไทยง่ายนิดเดียว";
+    // Narrower than the shortest words: each line holds one word.
+    let l = layout(db(), &area(text, style(12.0), Rect::new(0.0, 0.0, 70.0, 2000.0), Justify::Left));
+    let lines: Vec<&str> = l.lines.iter().map(|ln| &text[ln.start..ln.end]).collect();
+    assert!(lines.len() >= 3, "{lines:?}");
+    // Its words: สวัสดี ครับ, ภาษา ไทย ง่าย นิดเดียว ("hello", "the Thai language is very easy").
+    let words = ["สวัสดี", "ครับ ", "ภาษา", "ไทย", "ง่าย", "นิดเดียว"];
+    let ends: Vec<usize> = words
+        .iter()
+        .scan(0, |at, w| {
+            *at += w.len();
+            Some(*at)
+        })
+        .collect();
+    assert_eq!(ends.last(), Some(&text.len()));
+    for ln in &l.lines {
+        assert!(ends.contains(&ln.end), "a line ends inside a word: {lines:?}");
+    }
+    for w in l.lines.windows(2) {
+        assert_eq!(w[0].end, w[1].start, "lines tile the text");
+    }
+    let mark = |c: char| matches!(c, '\u{0E31}' | '\u{0E34}'..='\u{0E3A}' | '\u{0E47}'..='\u{0E4E}');
+    assert!(lines.iter().all(|s| s.chars().next().is_some_and(|c| !mark(c))), "a line starts with a mark: {lines:?}");
+}
+
+/// The desktop's dictionaries keep loanwords whole that a smaller model splits: โปรแกรม
+/// ("program").
+#[test]
+fn thai_loanwords_stay_whole() {
+    let text = "ยินดีต้อนรับสู่โปรแกรมวาดภาพเวกเตอร์";
+    let l = layout(db(), &area(text, style(12.0), Rect::new(0.0, 0.0, 70.0, 2000.0), Justify::Left));
+    let lines: Vec<&str> = l.lines.iter().map(|ln| &text[ln.start..ln.end]).collect();
+    // No line ends inside the word, whatever the Thai font's widths put beside it.
+    let word = text.find("โปรแกรม").unwrap();
+    assert!(l.lines.iter().all(|ln| ln.end <= word || ln.end >= word + "โปรแกรม".len()), "{lines:?}");
+}
@@ -805,3 +805,22 @@ fn caret_moves_over_whole_clusters() {
    assert_eq!((edit::prev_cluster(s, 6), edit::next_cluster(s, 6)), (3, 12));
    assert_eq!((edit::next_cluster("", 0), edit::prev_cluster("ab", 99)), (0, 1));
 }
+
+/// Word steps and double-click stop between Thai words, which no space separates: ภาษา|ไทย|ง่าย.
+#[test]
+fn thai_words_are_words_to_the_caret() {
+    let s = "ภาษาไทยง่าย ok";
+    let (thai, easy) = ("ภาษา".len(), "ภาษาไทย".len());
+    let end = "ภาษาไทยง่าย".len();
+    assert_eq!(edit::next_word(s, 0), thai);
+    assert_eq!(edit::next_word(s, thai), easy);
+    assert_eq!(edit::next_word(s, easy), end);
+    assert_eq!(edit::prev_word(s, end), easy);
+    assert_eq!(edit::prev_word(s, easy), thai);
+    assert_eq!(edit::prev_word(s, thai), 0);
+    assert_eq!(edit::word_at(s, thai + 3), thai..easy, "double-click inside ไทย");
+    assert_eq!(edit::word_at(s, 0), 0..thai);
+    // Latin keeps its words.
+    assert_eq!(edit::word_at(s, s.len() - 1), end + 1..s.len());
+    assert_eq!(edit::next_word("hello world", 0), 5);
+}
@@ -4,6 +4,7 @@
 #   background = fetched after the app starts (fonts users pick by name)
 # Read by build.rs (the WEB_FONTS table) and `cargo xtask web-fonts` (copies the files, a Trunk hook).
 startup | Noto Sans Arabic | Regular
+startup | Noto Sans Thai | Regular
 background | Cairo | Regular
 background | Tajawal | ExtraLight
 background | Tajawal | Light
@@ -84,17 +84,29 @@ const SAMPLES_PER_FRAME: usize = 4;
 const MAX_PENDING: usize = 8;
 /// What a sample shows when the font lacks the selected text's characters (or there is none).
 const FALLBACK_SAMPLE: &str = "Sample";
-/// The script filter's choices: all, Japanese, Latin.
-const SCRIPTS: usize = 3;
+/// The script filter's choices: all, Japanese, Latin, Thai.
+const SCRIPTS: usize = 4;

 fn script_label(i: usize) -> &'static str {
    match i {
        1 => tl!("Japanese"),
        2 => tl!("Latin"),
+        3 => tl!("Thai"),
        _ => tl!("All Scripts"),
    }
 }

+/// Does a family of `traits` pass script filter `script` ([`SCRIPTS`])? Latin: neither Japanese
+/// nor Thai.
+fn script_matches(script: usize, traits: vectorcraft_text::FontTraits) -> bool {
+    match script {
+        1 => traits.japanese,
+        2 => !traits.japanese && !traits.thai,
+        3 => traits.thai,
+        _ => true,
+    }
+}
+
 fn class_label(c: FontClass) -> &'static str {
    match c {
        FontClass::Serif => tl!("Serif / Mincho"),
@@ -283,7 +295,7 @@ fn list(ui: &mut Ui, state_id: egui::Id, st: &mut MenuState, current: &str, samp
                return true;
            }
            let traits = db.family_traits(f);
-            (st.script == 0 || (st.script == 1) == traits.japanese) && st.class.is_none_or(|c| c == traits.class)
+            script_matches(st.script, traits) && st.class.is_none_or(|c| c == traits.class)
        };
        let mut rows: Vec<Row> = vec![];
        for f in db.menu_family_list().iter().filter(|f| wanted(f)) {
@@ -748,6 +760,21 @@ pub(crate) fn sample_text(app: &VectorcraftApp) -> Option<String> {

 #[cfg(test)]
 mod tests {
+
+    /// The script filter: Thai lists families with Thai; Latin, those with neither Thai nor
+    /// Japanese.
+    #[test]
+    fn the_thai_filter_lists_fonts_with_thai() {
+        use vectorcraft_text::FontTraits;
+        let (thai, japanese, latin) =
+            (FontTraits { thai: true, ..Default::default() }, FontTraits { japanese: true, ..Default::default() }, FontTraits::default());
+        let passing = |t: FontTraits| (0..super::SCRIPTS).filter(|s| super::script_matches(*s, t)).collect::<Vec<_>>();
+        assert_eq!(passing(thai), [0, 3]);
+        assert_eq!(passing(japanese), [0, 1]);
+        assert_eq!(passing(latin), [0, 2]);
+        assert_eq!(super::script_label(3), "Thai");
+    }
+
    use super::{Row, remap_highlight};

    fn family(name: &str) -> Row {
@@ -1323,6 +1323,7 @@
 	Last Effect…	Letzter Effekt…
 	Last Page	Letzte Seite
 	Latin	Lateinisch
+	Thai	Thai
 	Latin Extended	Lateinisch, erweitert
 	Latin-1 Supplement	Lateinisch-1, Ergänzung
 	Layer	Ebene
@@ -1341,6 +1341,7 @@
 	Last Effect…	Último efecto…
 	Last Page	Última página
 	Latin	Latín
+	Thai	Tailandés
 	Latin Extended	Latín extendido
 	Latin-1 Supplement	Suplemento Latín-1
 	Layer	Capa
@@ -1340,6 +1340,7 @@
 	Last Effect…	Dernier effet…
 	Last Page	Dernière page
 	Latin	Latin
+	Thai	Thaï
 	Latin Extended	Latin étendu
 	Latin-1 Supplement	Supplément Latin-1
 	Layer	Calque
@@ -1341,6 +1341,7 @@
 	Last Effect…	Ultimo effetto…
 	Last Page	Ultima pagina
 	Latin	Latino
+	Thai	Thailandese
 	Latin Extended	Latino esteso
 	Latin-1 Supplement	Supplemento Latino-1
 	Layer	Livello
@@ -48,6 +48,7 @@
 	Hard	強い禁則
 	Soft	弱い禁則
 	Latin	欧文
+	Thai	タイ文字
 	Monospaced	等幅
 	Roman Baseline	欧文ベースライン
 	Rounded	丸ゴシック
@@ -1339,6 +1339,7 @@
 	Last Effect…	Последний эффект…
 	Last Page	Последняя страница
 	Latin	Латиница
+	Thai	Тайская
 	Latin Extended	Расширенная латиница
 	Latin-1 Supplement	Дополнение Latin-1
 	Layer	Слой
@@ -1335,6 +1335,7 @@
 	Last Effect…	Останній ефект…
 	Last Page	Остання сторінка
 	Latin	Латиниця
+	Thai	Тайська
 	Latin Extended	Розширена латиниця
 	Latin-1 Supplement	Додаток Latin-1
 	Layer	Шар
@@ -3417,6 +3417,7 @@
 	Graphics: {adapter}	显卡：{adapter}
 	Japanese	日文
 	Latin	拉丁文
+	Thai	泰文
 	Layer Options	图层选项
 	Layers Panel Options	图层面板选项
 	Monospaced	等宽
@@ -1316,6 +1316,7 @@
 	Last Effect…	最後一次效果…
 	Last Page	最後一頁
 	Latin	拉丁文
+	Thai	泰文
 	Latin Extended	拉丁文擴充
 	Latin-1 Supplement	拉丁文-1 補充
 	Layer	圖層
@@ -614,6 +614,7 @@ fn frame_at(app: &mut VectorcraftApp, ctx: &egui::Context, time: f64) -> std::ti
 /// for) or until `done` → whether it was.
 fn idle(app: &mut VectorcraftApp, ctx: &egui::Context, time: &mut f64, secs: f64, done: &dyn Fn(&VectorcraftApp) -> bool) -> bool {
    let end = *time + secs;
+    let real_end = std::time::Instant::now() + std::time::Duration::from_secs(20);
    loop {
        let wait = frame_at(app, ctx, *time);
        if done(app) {
@@ -624,9 +625,11 @@ fn idle(app: &mut VectorcraftApp, ctx: &egui::Context, time: &mut f64, secs: f64
            *time = end;
            return false;
        }
-        if app.session.link_scan.is_some() {
-            // The look runs on a worker thread, in real time.
+        // The look runs on a worker thread, in real time: the clock waits for it, else a busy
+        // machine's slow look outlasts the simulated seconds and the test fails at random.
+        if app.session.link_scan.is_some() && std::time::Instant::now() < real_end {
            std::thread::sleep(std::time::Duration::from_millis(5));
+            continue;
        }
        *time = next;
    }
@@ -133,6 +133,8 @@ CRAFT_FONTS_DIR="$PWD/../craft-fonts" cargo xtask ci   # also runs the Japanese-
  embed everywhere, was 8.7 MB, so the web build is still smaller than before.
 - Document text: the Japanese faces join the font database after the bundled fonts (Mincho first),
  so they are the fallback for Japanese after the requested font; installed system fonts come after.
+  Noto Sans Thai (when the checkout has it) is the fallback for Thai where no Thai font is
+  installed, and the web build fetches it before the app starts (`crates/text/web-fonts.txt`).
 - UI: `theme::install_fonts` adds them at the end of every egui family (BIZ UDPGothic first), after
  the UI fonts and before the installed fonts `ui_fonts.rs` discovers for other scripts.
 - Tests that need Japanese glyphs skip with a message when built without craft-fonts. The FreeBSD
@@ -1,6 +1,6 @@
 # Type parity

-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (the caret steps over whole clusters such as Thai consonants with their marks; Thai typed in a font without Thai falls back to a font made for Thai; earlier: Proportional Metrics in vertical type, `vpal`, #966) · **Target:** Adobe Illustrator 2026 (30.x)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-11 · **Change:** minor (the font menu's script filter lists Thai fonts; Thai, Lao, Khmer and Myanmar lines break between words; the caret steps over whole clusters such as Thai consonants with their marks; Thai typed in a font without Thai falls back to a font made for Thai; earlier: Proportional Metrics in vertical type, `vpal`, #966) · **Target:** Adobe Illustrator 2026 (30.x)

 Type is Illustrator's largest single area by use (weight 13 of 105 across "Type core" and "Type advanced" in
 [target-app-parity.md](target-app-parity.md)). This checklist lists the features one by one. Status is from the
@@ -26,6 +26,7 @@ against Illustrator's public documentation; **estimated** unless noted.
 | Character size and horizontal scale after object/group scaling | done | #1034: fields and setters compensate the stored affine; point size follows the transformed em-height axis, not the glyph ink bounds. Range edits, keyboard increments, leading and baseline shift use document points; rotation, reflection and shear remain editable. |
 | Preserve font sizes while scaling a group | missing | Separate enhancement; scaling still scales text with the other artwork. |
 | OpenType panel, Glyphs panel, alternates | done | Highlight Alternate Glyphs preference unused (#394) |
+| Font menu: samples, live preview, filters, favourites; font matching by any name; Find Font | done | #339; script filter: Japanese, Latin, Thai |
 | Font menu: samples, live preview, filters, favourites; font matching by any name; Find Font | done | #339 |
 | Missing glyphs set in an installed font made for their script (Thai, Lao, Khmer, Myanmar first; then any font that has them) | done | Thai: Leelawadee UI, Tahoma, Thonburi, Sukhumvit Set, Noto Sans Thai, TLWG |
 | Variable fonts | partial | named instances as styles; axis sliders missing |
@@ -41,6 +42,7 @@ against Illustrator's public documentation; **estimated** unless noted.
 | Touch Type tool | missing | listed in the toolbar, not implemented |
 | Retype (identify fonts in outlines/images) | missing | Illustrator's uses a cloud model |
 | Snap to Glyph | missing | menu stub |
+| Thai, Lao, Khmer, Myanmar: shaping (marks, reordering), lines broken between words, word-by-word caret and double-click | done | words found by ICU4X's line segmenter: dictionaries on the desktop, LSTM models on the web |
 | Middle Eastern: bidirectional layout, Paragraph Direction | done | |
 | Middle Eastern: Character Direction, digit types, kashidas, Middle Eastern composers, split caret | missing | |
 | CJK: input methods (marked text, candidate window) | done | |
@@ -53,6 +55,9 @@ against Illustrator's public documentation; **estimated** unless noted.

 | Date | Change | Summary |
 |---|---|---|
+| 2026-10-11 | minor | Thai, Lao, Khmer and Myanmar words for the caret (Ctrl/Alt+arrows) and double-click; combining marks count as part of a word; score unchanged (estimated) |
+| 2026-10-11 | minor | Font menu: a Thai script filter beside Japanese and Latin; score unchanged (estimated) |
+| 2026-10-11 | minor | Thai, Lao, Khmer and Myanmar text breaks its lines between words (ICU4X line segmenter) instead of only at spaces; score unchanged (estimated) |
 | 2026-10-11 | minor | The Type tool's arrows and Delete move by grapheme cluster, never between a Thai consonant and its vowel or tone marks; score unchanged (estimated) |
 | 2026-10-11 | minor | Thai (Lao, Khmer, Myanmar) missing from the font in use falls back to an installed font made for the script instead of whichever face covering it loaded first; score unchanged (estimated) |
 | 2026-10-11 | minor | Proportional Metrics done: `palt` in horizontal type, `vpal` in vertical type (#966, #1082); ruby and manual tate-chu-yoko still missing |
Author	SHA1	Message	Date
bflatastic	6f4049494d	Test: the idle place test waits for the link scan in real time tests_place::a_file_placed_while_idle_follows_its_changes failed at random in CI (twice on 2026-10-11): while the link scan ran on its worker thread, the test's clock moved on by whole simulated seconds per 5 ms of real time, so on a busy machine the 10 simulated seconds ran out before the scan had read the changed file. The clock now waits for the scan (up to 20 real seconds).	2026-10-11 22:02:50 +07:00
BFlat	29bad213f8	Merge pull request #1213 from storytold/fix/1197-compound-holes #1197: Make Compound Path cuts holes where paths overlap	2026-10-11 22:02:36 +07:00
bflatastic	7f35522b15	#1197 : Make Compound Path cuts holes where paths overlap Make Compound Path kept each path's direction under the non-zero fill rule, so a shape drawn inside or across another, running the same way, left the overlap filled instead of making a hole. The paths in front of the backmost one now run against it, so where they overlap it they cut holes, as users expect from a compound path.	2026-10-11 21:32:23 +07:00
BFlat	3b60d0ceb6	Merge pull request #1204 from storytold/ci/craft-fonts-pin Release: embed the current craft-fonts (Thai, Arabic, Chinese)	2026-10-11 20:57:47 +07:00
bflatasticandClaude Opus 5.5	947b294f87	Release: embed the current craft-fonts (Thai, Arabic, Chinese) Releases pinned craft-fonts at its first commit, with the Japanese fonts only. The pin moves to its current main, as PdfCraft, LightCraft and WordCraft have moved theirs: desktop builds embed Noto Sans Thai, Noto Sans Arabic and Noto Sans CJK SC too (the web build still embeds only the UI font and fetches Thai and Arabic beside the wasm). Packages already copy every embedded font's licence. The Thai loanword test no longer assumes the bundled fonts' widths: it checks that no line ends inside โปรแกรม, whichever Thai font sets it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-11 20:47:46 +07:00
BFlat	434b47d9c4	Merge pull request #1195 from storytold/fix/thai-word-navigation Type: the caret and double-click take Thai word by word	2026-10-11 20:07:03 +07:00
bflatasticandClaude Opus 5.5	a08ca07c69	Type: the caret and double-click take Thai word by word Ctrl/Alt+arrows and double-click treated a run of Thai (Lao, Khmer, Myanmar) without spaces as one word, and stopped at a word's tone and vowel marks, which didn't count as part of a word. They now stop at the word boundaries the line segmenter finds in those scripts (shared with line breaking, so no more data ships), and combining marks count as part of a word, also for combining accents in other scripts. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-11 20:06:39 +07:00
BFlat	d17c07f343	Merge pull request #1191 from storytold/fix/thai-craft-font Type: Noto Sans Thai from craft-fonts is the Thai fallback, on the web too	2026-10-11 19:52:51 +07:00
bflatasticandClaude Opus 5.5	70e99987e9	Type: Noto Sans Thai from craft-fonts is the Thai fallback, on the web too The web build has no installed fonts, so Thai there showed as empty boxes. With a craft-fonts checkout that has Noto Sans Thai, its Thai font joins the document font database after the Arabic ones (the fallback for Thai where no Thai font is installed) and the web build fetches it before the app starts, as it does Noto Sans Arabic. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-11 19:52:08 +07:00
BFlat	7a85f6050d	Merge pull request #1190 from storytold/fix/thai-font-filter Font menu: a Thai script filter	2026-10-11 19:51:53 +07:00
bflatasticandClaude Opus 5.5	cc2f45b129	Font menu: a Thai script filter The font menu's script filter offered Japanese and Latin only, so Thai fonts had to be found by name among every installed family. It now has Thai too: the families whose character map has Thai. Latin lists the families with neither Japanese nor Thai. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-11 19:51:32 +07:00
BFlat	fe8af48fa7	Merge pull request #1188 from storytold/fix/thai-line-breaks Type: Thai, Lao, Khmer and Myanmar lines break between words	2026-10-11 19:33:29 +07:00
bflatasticandClaude Opus 5.5	5a855971aa	Type: Thai, Lao, Khmer and Myanmar lines break between words These scripts don't separate words with spaces, and lines only broke at spaces, hyphens and CJK characters, so a Thai paragraph in area type ran on to the next space (or was cut wherever it overflowed). Each paragraph's glyphs now carry the word ends ICU4X's line segmenter finds in text of those scripts (its dictionaries on the desktop, its far smaller LSTM models on the web), and a line may break after them as after a space. Other text keeps its own breaks, and clusters (a consonant with its vowel and tone marks) still never split. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-11 19:31:37 +07:00
BFlat	36494d0385	Merge pull request #1187 from storytold/docs/type-parity-status Docs: type parity has one status line again	2026-10-11 19:30:25 +07:00