Dylan M. TaylorandSimon Koch-Sultan 9ab7768771 Add craft-rtf: RTF tokenizer, code pages, and a reader and writer for a small model (#890) ...

* Add craft-rtf: RTF tokenizer, text decoding, and a reader and writer for a small model

The tokenizing rules, code pages, multibyte decoding, dates and escaping come
from WordCraft's RTF reader and writer. The model (paragraphs with outline
level and indent, character formatting, tables) covers what DesignCraft's text
import, DeckCraft's outline import and export and PdfCraft's export use.

An unpaired UTF-16 surrogate in \u reads as U+FFFD and a high surrogate pairs
only with the very next \u, as storytold/wordcraft#6105 describes for Word.

* craft-rtf: a symbol font's bytes are its own codes

A font with \fcharset2 (Symbol, Wingdings) has no letters: a byte from 0x80
reads as U+F000 + the byte instead of a letter of the document's code page.
The symbol page applies to body text only, a symbol default font's page does
not apply to text in a font chosen with \f, \plain makes the default font's
page current again, and a code page an entry names with \cpg is kept.

Ported from storytold/wordcraft#6014.

* craft-rtf: alignment, indents, spacing, superscript and subscript; NUL is not text

The model and both directions gain what DesignCraft's RTF export writes:
\ql \qc \qr \qj, \ri, \fi, \sb, \sa, \super, \sub, \nosupersub.
A \u0 or \'00 no longer puts a NUL into the text.

---------

Co-authored-by: Simon Koch-Sultan <126534658+scks1@users.noreply.github.com>

2026-11-11 17:26:57 -05:00

..

read_write.rs

Add craft-rtf: RTF tokenizer, code pages, and a reader and writer for a small model (#890)

2026-11-11 17:26:57 -05:00