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.ai import: a re-encoded font's own encoding pairs decode its type

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In the legacy format, `TZ` makes a re-encoded font from an existing one
and can give it encoding pairs of its own, which change only that font's
encoding. Its `useDefault` operand says whether the file's `TE` encoding
also applies to the font (Adobe Illustrator File Format Specification
7.0, section 3.3.1,
https://13thmonkey.org/documentation/fonts/AI7FileFormat.pdf). The
reader skipped the body of `%AI3_BeginEncoding` sections and ignored
`TZ`, so every string was decoded with `TE`'s encoding.

Strings in a re-encoded font are now decoded with its own pairs, then
with `TE`'s encoding when `useDefault` is 1, and as Windows-1252 for the
codes left. Strings in other fonts keep `TE`'s encoding. The reader
reads `TZ` in the body of an `%AI3_BeginEncoding` section and wherever
else it appears in the script, with or without the direction operand
and the Multiple Master weight vector. The font names are the last two
names, and only numbers and the weight vector may follow them; the
reader does not use a `TZ` of another shape. The first `TZ` for a font
is used.

`TZ`'s font names also map the re-encoded font to the font it was made
from, as the `%AI3_BeginEncoding` comment does. Type in a re-encoded
font that no such comment names now opens in the font `TZ` names; when
both name the font, the first one read is used.
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2026-11-05 19:40:58 +07:00
committed by bflatastic
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commit 7973439cc2
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@@ -122,6 +122,9 @@ private editing data. VectorCraft:
without the prolog opens since #1027, its legacy type (`To` … `TO`) since #868. Graphs (`%_Gs` … `%_GS`)
come in as their drawn art, as plain groups, paths and type, without their data or settings, with a note.
without the prolog opens since #1027, its legacy type (`To` … `TO`) since #868, with its paragraphs' letter
and word spacing (`TC`, `TW`), hanging punctuation (`Tq`) and hyphenation (`Th`). Its type in a font
re-encoded with encoding pairs of its own (`TZ`) is decoded with those pairs, and with the file's encoding
(`TE`) for the codes they leave out unless the `TZ` sets `useDefault` to 0. Its patterns in
and word spacing (`TC`, `TW`), hanging punctuation (`Tq`) and hyphenation (`Th`); its special characters
(`TS`) join the story, and end render (`Te`) and pop text matrix (`TM`) are read and ignored. Its patterns in
the version 7 form (a list of `@` and `&` layers, `_ &` for the tile's background) open as pattern swatches,