mirror of https://github.com/stelzo/typst.git
91 lines
2.4 KiB
Rust
91 lines
2.4 KiB
Rust
//! Capabilities for IDE support.
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mod complete;
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mod highlight;
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mod tooltip;
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pub use complete::*;
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pub use highlight::*;
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pub use tooltip::*;
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use std::fmt::Write;
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use crate::font::{FontInfo, FontStyle};
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/// Extract the first sentence of plain text of a piece of documentation.
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///
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/// Removes Markdown formatting.
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fn plain_docs_sentence(docs: &str) -> String {
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let mut s = unscanny::Scanner::new(docs);
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let mut output = String::new();
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let mut link = false;
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while let Some(c) = s.eat() {
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match c {
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'`' => {
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let mut raw = s.eat_until('`');
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if (raw.starts_with('{') && raw.ends_with('}'))
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|| (raw.starts_with('[') && raw.ends_with(']'))
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{
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raw = &raw[1..raw.len() - 1];
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}
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s.eat();
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output.push('`');
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output.push_str(raw);
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output.push('`');
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}
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'[' => link = true,
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']' if link => {
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if s.eat_if('(') {
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s.eat_until(')');
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s.eat();
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} else if s.eat_if('[') {
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s.eat_until(']');
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s.eat();
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}
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link = false
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}
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'*' | '_' => {}
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'.' => {
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output.push('.');
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break;
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}
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_ => output.push(c),
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}
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}
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output
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}
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/// Create a short description of a font family.
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pub fn summarize_font_family<'a>(variants: impl Iterator<Item = &'a FontInfo>) -> String {
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let mut infos: Vec<_> = variants.collect();
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infos.sort_by_key(|info| info.variant);
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let mut has_italic = false;
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let mut min_weight = u16::MAX;
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let mut max_weight = 0;
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for info in &infos {
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let weight = info.variant.weight.to_number();
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has_italic |= info.variant.style == FontStyle::Italic;
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min_weight = min_weight.min(weight);
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max_weight = min_weight.max(weight);
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}
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let count = infos.len();
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let s = if count == 1 { "" } else { "s" };
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let mut detail = format!("{count} variant{s}.");
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if min_weight == max_weight {
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write!(detail, " Weight {min_weight}.").unwrap();
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} else {
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write!(detail, " Weights {min_weight}–{max_weight}.").unwrap();
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}
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if has_italic {
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detail.push_str(" Has italics.");
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}
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detail
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}
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