Merge pull request #7081 from dotCooCoo/fix/svg-rtl-text-anchor

SVG: right-to-left text with text-anchor start or end opens at its directional edge

docs/target-app-parity.md

@@ -1532,6 +1532,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
     A function-based PDF shading (type 1) whose colour changes along one axis only, as a browser writes a repeating linear gradient, comes in as a linear gradient over its domain, each hard colour change two stops at one offset; one whose colour changes in two directions comes in as its average colour, with a warning. Either paints only over the shading's domain. Both came in as a flat grey that wasn't in the file (#3621). Each such shading is read once per import, and all of them within one budget of 200,000 function evaluations, so a file filling thousands of paths with long functions still opens in about a second (it took minutes); past the budget they come in as their average colour, then grey, with a warning.
     A gap between glyphs of two sizes is measured against the smaller one, so a word set beside a much larger one with no space glyph between them (a browser's margin between two sizes, as in `≤ 4` and a small `hours`) keeps its word space (#3623).
     SVG import's style cascade, used for hidden objects, non-scaling strokes and type, tests each element only against the `<style>` rules for its id, its classes and its element name, and the rules whose selector ends in none of these (`*`, `[x]`).
+    SVG import places right-to-left point type and type on a path as [SVG 2's `text-anchor`](https://www.w3.org/TR/SVG2/text.html#TextAnchoringProperties) says: with `direction: rtl`, `start` puts the right edge of the text at its position (on a path, the text ends at `startOffset`) and `end` puts the left edge there. Each line and each absolutely placed chunk is anchored by the `text-anchor` and `direction` of the element holding its first character, a `<tspan>`'s own included, and each line starts at its own `x`. An absolutely placed chunk is anchored by the left and right edges of its glyphs as they are drawn, so a chunk of several right-to-left characters, whose first character is drawn at its right, sits on its anchor too. A letter-spaced right-to-left line keeps the tracking of all its letters inside the advance it anchors (`rtl_point_text_start_and_end_use_directional_edges`, `rtl_type_on_a_path_starts_at_its_directional_edge`, `rtl_letter_spaced_lines_stay_on_their_anchor`, `rtl_lines_use_each_chunk_first_character_direction_and_anchor`, `each_line_starts_at_its_own_x`, `absolutely_placed_chunks_use_their_own_rtl_anchor` and `absolutely_placed_rtl_chunks_of_several_characters_anchor_by_their_visual_edges` in `crates/svg/tests/it/import_text.rs`).
     A `.svgz` file copied in a file manager pastes as its art, as a copied `.svg` file does.
     SVG export (Save As, Export As, Export for Screens, Asset Export and the clipboard share the writer) writes simple shapes as SVG basic shapes, as the reference app does (an ellipse is an `ellipse` tag until an anchor is added, [forum](https://community.adobe.com/t5/illustrator-discussions/trouble-exporting-shape-with-points-to-svg/td-p/10720325); rectangles come out as `<rect>` and `<polygon>`, [forum](https://community.adobe.com/t5/illustrator-discussions/force-svg-export-using-all-lt-rect-gt/td-p/11282378)): an axis-aligned rectangle as `<rect>`, a circle or ellipse drawn with four standard arcs as `<circle>`/`<ellipse>`, a straight line as `<line>`, and other straight-segment paths as `<polygon>`/`<polyline>`, at the written precision (#4652). A rectangle or ellipse with a dashed stroke, whose dashes would start elsewhere, a turned ellipse, curves and compound paths stay `<path>`. `crates/svg/tests/it/basic_shapes.rs` checks each element, that the picture renders as the canvas does and that the geometry reimports.
     At a precision of 9 decimals or fewer, SVG export writes each number from an integer when the integer rounds it as the decimal formatter does; the formatter still writes values halfway between two written numbers and values too large for the integer. Exporting one path of 200,000 anchors takes a median of 43.4 ms instead of 167.0 ms on Windows 11, and 20,000 rectangles 81.4 ms instead of 141.4 ms, with the same SVG (`crates/svg/src/lib.rs`).