mirror of
https://github.com/storytold/designcraft.git
synced 2026-10-28 20:26:57 -06:00
Shao Wenbin
c861a9f75e
Port the CJK1 and AR1 changes from 3ecdb78 and de83cdc onto current main. Resolve translation and font-stack conflicts by retaining main localization and craft-fonts integration while preserving all typesetting code, tests, and documentation. Validation: all six CI gates passed, including 616 tests and WASM checks.
92 lines
3.8 KiB
Rust
92 lines
3.8 KiB
Rust
//! OpenType features as the Character panel's OpenType menu offers them, kept in a character
|
||
//! format's `otf_features` tag list (`"dlig"` on, `"-calt"` off).
|
||
|
||
/// On/off features: (tag, menu label, IDML attribute).
|
||
pub const TOGGLES: &[(&str, &str, &str)] = &[
|
||
("dlig", "Discretionary Ligatures", "OTFDiscretionaryLigature"),
|
||
("frac", "Fractions", "OTFFraction"),
|
||
("ordn", "Ordinal", "OTFOrdinal"),
|
||
("swsh", "Swash", "OTFSwash"),
|
||
("titl", "Titling Alternates", "OTFTitling"),
|
||
("calt", "Contextual Alternates", "OTFContextualAlternate"),
|
||
("zero", "Slashed Zero", "OTFSlashedZero"),
|
||
("palt", "Proportional Metrics", "OTFProportionalMetrics"),
|
||
("hkna", "Horizontal Kana", "OTFHVKana"),
|
||
("locl", "Localized Forms", "OTFLocale"),
|
||
("mark", "Mark Positioning", "OTFMark"),
|
||
("hist", "Historical Forms", "OTFHistorical"),
|
||
("salt", "Stylistic Alternates", "OTFStylisticAlternate"),
|
||
("jalt", "Justification Alternates", "OTFJustificationAlternate"),
|
||
("ital", "Roman Italics", "OTFRomanItalics"),
|
||
];
|
||
|
||
/// Figure styles: (id, menu label, tags, IDML value).
|
||
pub const FIGURES: &[(&str, &str, &[&str], &str)] = &[
|
||
("tabularLining", "Tabular Lining", &["tnum", "lnum"], "TabularLining"),
|
||
("proportionalOldstyle", "Proportional Oldstyle", &["pnum", "onum"], "ProportionalOldstyle"),
|
||
("proportionalLining", "Proportional Lining", &["pnum", "lnum"], "ProportionalLining"),
|
||
("tabularOldstyle", "Tabular Oldstyle", &["tnum", "onum"], "TabularOldstyle"),
|
||
("default", "Default Figure Style", &[], "Default"),
|
||
];
|
||
|
||
/// Features shaping turns on by itself: "off" is an explicit `-tag`.
|
||
fn default_on(tag: &str) -> bool {
|
||
matches!(tag, "calt" | "locl" | "mark")
|
||
}
|
||
|
||
pub fn is_on(list: &[String], tag: &str) -> bool {
|
||
if default_on(tag) { !list.iter().any(|t| t.strip_prefix('-') == Some(tag)) } else { list.iter().any(|t| t == tag) }
|
||
}
|
||
|
||
pub fn set(list: &mut Vec<String>, tag: &str, on: bool) {
|
||
list.retain(|t| t != tag && t.strip_prefix('-') != Some(tag));
|
||
if on != default_on(tag) {
|
||
list.push(if on { tag.to_string() } else { format!("-{tag}") });
|
||
}
|
||
}
|
||
|
||
/// The figure style id of a tag list ("default" when none matches).
|
||
pub fn figures(list: &[String]) -> &'static str {
|
||
FIGURES.iter().find(|(_, _, tags, _)| !tags.is_empty() && tags.iter().all(|t| list.iter().any(|x| x == t))).map_or("default", |f| f.0)
|
||
}
|
||
|
||
pub fn set_figures(list: &mut Vec<String>, id: &str) -> bool {
|
||
let Some((_, _, tags, _)) = FIGURES.iter().find(|f| f.0 == id) else { return false };
|
||
list.retain(|t| !matches!(t.as_str(), "tnum" | "pnum" | "lnum" | "onum"));
|
||
list.extend(tags.iter().map(|t| t.to_string()));
|
||
true
|
||
}
|
||
|
||
/// Stylistic sets 1–20 as a bit mask (bit 0 = ss01), IDML's `OTFStylisticSets`.
|
||
pub fn stylistic_sets(list: &[String]) -> u32 {
|
||
list.iter().filter_map(|t| t.strip_prefix("ss")?.parse::<u32>().ok()).filter(|n| (1..=20).contains(n)).fold(0, |m, n| m | 1 << (n - 1))
|
||
}
|
||
|
||
pub fn set_stylistic_sets(list: &mut Vec<String>, mask: u32) {
|
||
list.retain(|t| !(t.len() == 4 && t.starts_with("ss") && t[2..].parse::<u32>().is_ok()));
|
||
list.extend((1..=20).filter(|n| mask & (1 << (n - 1)) != 0).map(|n| format!("ss{n:02}")));
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use super::*;
|
||
|
||
#[test]
|
||
fn toggles_figures_and_sets() {
|
||
let mut l: Vec<String> = vec![];
|
||
assert!(is_on(&l, "calt") && !is_on(&l, "dlig"));
|
||
set(&mut l, "dlig", true);
|
||
set(&mut l, "calt", false);
|
||
assert_eq!(l, ["dlig", "-calt"]);
|
||
set(&mut l, "calt", true);
|
||
assert_eq!(l, ["dlig"]);
|
||
assert!(set_figures(&mut l, "tabularOldstyle"));
|
||
assert_eq!(figures(&l), "tabularOldstyle");
|
||
set_figures(&mut l, "default");
|
||
assert_eq!(figures(&l), "default");
|
||
set_stylistic_sets(&mut l, 0b101);
|
||
assert_eq!(stylistic_sets(&l), 0b101);
|
||
assert!(l.contains(&"ss03".to_string()));
|
||
}
|
||
}
|