mirror of
https://github.com/typst/typst
synced 2025-05-14 17:15:28 +08:00
1100 lines
38 KiB
Rust
1100 lines
38 KiB
Rust
use std::collections::HashMap;
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use std::ffi::OsStr;
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use std::fmt::{self, Debug, Formatter};
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use std::hash::{Hash, Hasher};
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use std::num::NonZeroUsize;
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use std::path::Path;
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use std::sync::{Arc, LazyLock};
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use comemo::Tracked;
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use ecow::{eco_format, EcoString, EcoVec};
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use hayagriva::archive::ArchivedStyle;
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use hayagriva::io::BibLaTeXError;
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use hayagriva::{
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citationberg, BibliographyDriver, BibliographyRequest, CitationItem, CitationRequest,
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SpecificLocator,
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};
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use indexmap::IndexMap;
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use smallvec::{smallvec, SmallVec};
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use typed_arena::Arena;
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use typst_syntax::{Span, Spanned};
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use typst_utils::{LazyHash, NonZeroExt, PicoStr};
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use crate::diag::{bail, error, At, FileError, HintedStrResult, SourceResult, StrResult};
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use crate::engine::Engine;
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use crate::foundations::{
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cast, elem, ty, Args, Array, Bytes, CastInfo, Content, FromValue, IntoValue, Label,
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NativeElement, Packed, Reflect, Repr, Scope, Show, ShowSet, Smart, Str, StyleChain,
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Styles, Synthesize, Type, Value,
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};
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use crate::introspection::{Introspector, Locatable, Location};
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use crate::layout::{
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BlockBody, BlockElem, Em, GridCell, GridChild, GridElem, GridItem, HElem, PadElem,
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Sizing, TrackSizings, VElem,
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};
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use crate::model::{
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CitationForm, CiteGroup, Destination, FootnoteElem, HeadingElem, LinkElem, ParElem,
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Url,
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};
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use crate::routines::{EvalMode, Routines};
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use crate::text::{
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FontStyle, Lang, LocalName, Region, SubElem, SuperElem, TextElem, WeightDelta,
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};
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use crate::World;
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/// A bibliography / reference listing.
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///
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/// You can create a new bibliography by calling this function with a path
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/// to a bibliography file in either one of two formats:
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///
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/// - A Hayagriva `.yml` file. Hayagriva is a new bibliography file format
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/// designed for use with Typst. Visit its
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/// [documentation](https://github.com/typst/hayagriva/blob/main/docs/file-format.md)
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/// for more details.
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/// - A BibLaTeX `.bib` file.
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///
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/// As soon as you add a bibliography somewhere in your document, you can start
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/// citing things with reference syntax (`[@key]`) or explicit calls to the
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/// [citation]($cite) function (`[#cite(<key>)]`). The bibliography will only
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/// show entries for works that were referenced in the document.
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///
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/// # Styles
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/// Typst offers a wide selection of built-in
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/// [citation and bibliography styles]($bibliography.style). Beyond those, you
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/// can add and use custom [CSL](https://citationstyles.org/) (Citation Style
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/// Language) files. Wondering which style to use? Here are some good defaults
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/// based on what discipline you're working in:
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///
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/// | Fields | Typical Styles |
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/// |-----------------|--------------------------------------------------------|
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/// | Engineering, IT | `{"ieee"}` |
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/// | Psychology, Life Sciences | `{"apa"}` |
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/// | Social sciences | `{"chicago-author-date"}` |
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/// | Humanities | `{"mla"}`, `{"chicago-notes"}`, `{"harvard-cite-them-right"}` |
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/// | Economics | `{"harvard-cite-them-right"}` |
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/// | Physics | `{"american-physics-society"}` |
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///
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/// # Example
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/// ```example
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/// This was already noted by
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/// pirates long ago. @arrgh
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///
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/// Multiple sources say ...
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/// @arrgh @netwok.
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///
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/// #bibliography("works.bib")
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/// ```
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#[elem(Locatable, Synthesize, Show, ShowSet, LocalName)]
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pub struct BibliographyElem {
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/// Path(s) to Hayagriva `.yml` and/or BibLaTeX `.bib` files.
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#[required]
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#[parse(
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let (paths, bibliography) = Bibliography::parse(engine, args)?;
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paths
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)]
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pub path: BibliographyPaths,
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/// The title of the bibliography.
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///
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/// - When set to `{auto}`, an appropriate title for the
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/// [text language]($text.lang) will be used. This is the default.
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/// - When set to `{none}`, the bibliography will not have a title.
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/// - A custom title can be set by passing content.
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///
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/// The bibliography's heading will not be numbered by default, but you can
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/// force it to be with a show-set rule:
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/// `{show bibliography: set heading(numbering: "1.")}`
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pub title: Smart<Option<Content>>,
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/// Whether to include all works from the given bibliography files, even
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/// those that weren't cited in the document.
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///
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/// To selectively add individual cited works without showing them, you can
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/// also use the `cite` function with [`form`]($cite.form) set to `{none}`.
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#[default(false)]
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pub full: bool,
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/// The bibliography style.
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///
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/// Should be either one of the built-in styles (see below) or a path to
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/// a [CSL file](https://citationstyles.org/). Some of the styles listed
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/// below appear twice, once with their full name and once with a short
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/// alias.
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#[parse(CslStyle::parse(engine, args)?)]
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#[default(CslStyle::from_name("ieee").unwrap())]
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pub style: CslStyle,
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/// The loaded bibliography.
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#[internal]
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#[required]
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#[parse(bibliography)]
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pub bibliography: Bibliography,
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/// The language setting where the bibliography is.
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#[internal]
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#[synthesized]
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pub lang: Lang,
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/// The region setting where the bibliography is.
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#[internal]
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#[synthesized]
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pub region: Option<Region>,
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}
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/// A list of bibliography file paths.
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#[derive(Debug, Default, Clone, Eq, PartialEq, Hash)]
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pub struct BibliographyPaths(Vec<EcoString>);
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cast! {
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BibliographyPaths,
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self => self.0.into_value(),
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v: EcoString => Self(vec![v]),
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v: Array => Self(v.into_iter().map(Value::cast).collect::<HintedStrResult<_>>()?),
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}
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impl BibliographyElem {
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/// Find the document's bibliography.
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pub fn find(introspector: Tracked<Introspector>) -> StrResult<Packed<Self>> {
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let query = introspector.query(&Self::elem().select());
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let mut iter = query.iter();
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let Some(elem) = iter.next() else {
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bail!("the document does not contain a bibliography");
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};
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if iter.next().is_some() {
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bail!("multiple bibliographies are not yet supported");
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}
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Ok(elem.to_packed::<Self>().unwrap().clone())
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}
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/// Whether the bibliography contains the given key.
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pub fn has(engine: &Engine, key: impl Into<PicoStr>) -> bool {
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let key = key.into();
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engine
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.introspector
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.query(&Self::elem().select())
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.iter()
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.any(|elem| elem.to_packed::<Self>().unwrap().bibliography().has(key))
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}
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/// Find all bibliography keys.
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pub fn keys(introspector: Tracked<Introspector>) -> Vec<(Label, Option<EcoString>)> {
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let mut vec = vec![];
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for elem in introspector.query(&Self::elem().select()).iter() {
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let this = elem.to_packed::<Self>().unwrap();
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for (key, entry) in this.bibliography().iter() {
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let detail = entry.title().map(|title| title.value.to_str().into());
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vec.push((Label::new(key), detail))
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}
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}
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vec
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}
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}
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impl Synthesize for Packed<BibliographyElem> {
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fn synthesize(&mut self, _: &mut Engine, styles: StyleChain) -> SourceResult<()> {
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let elem = self.as_mut();
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elem.push_lang(TextElem::lang_in(styles));
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elem.push_region(TextElem::region_in(styles));
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Ok(())
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}
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}
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impl Show for Packed<BibliographyElem> {
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#[typst_macros::time(name = "bibliography", span = self.span())]
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fn show(&self, engine: &mut Engine, styles: StyleChain) -> SourceResult<Content> {
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const COLUMN_GUTTER: Em = Em::new(0.65);
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const INDENT: Em = Em::new(1.5);
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let mut seq = vec![];
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if let Some(title) = self.title(styles).unwrap_or_else(|| {
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Some(TextElem::packed(Self::local_name_in(styles)).spanned(self.span()))
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}) {
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seq.push(
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HeadingElem::new(title)
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.with_depth(NonZeroUsize::ONE)
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.pack()
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.spanned(self.span()),
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);
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}
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let span = self.span();
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let works = Works::generate(engine).at(span)?;
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let references = works
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.references
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.as_ref()
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.ok_or("CSL style is not suitable for bibliographies")
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.at(span)?;
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let row_gutter = ParElem::spacing_in(styles);
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let row_gutter_elem = VElem::new(row_gutter.into()).with_weak(true).pack();
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if references.iter().any(|(prefix, _)| prefix.is_some()) {
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let mut cells = vec![];
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for (prefix, reference) in references {
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cells.push(GridChild::Item(GridItem::Cell(
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Packed::new(GridCell::new(prefix.clone().unwrap_or_default()))
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.spanned(span),
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)));
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cells.push(GridChild::Item(GridItem::Cell(
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Packed::new(GridCell::new(reference.clone())).spanned(span),
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)));
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}
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seq.push(
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GridElem::new(cells)
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.with_columns(TrackSizings(smallvec![Sizing::Auto; 2]))
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.with_column_gutter(TrackSizings(smallvec![COLUMN_GUTTER.into()]))
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.with_row_gutter(TrackSizings(smallvec![row_gutter.into()]))
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.pack()
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.spanned(self.span()),
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);
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} else {
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for (i, (_, reference)) in references.iter().enumerate() {
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if i > 0 {
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seq.push(row_gutter_elem.clone());
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}
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seq.push(reference.clone());
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}
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}
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let mut content = Content::sequence(seq);
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if works.hanging_indent {
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content = content.styled(ParElem::set_hanging_indent(INDENT.into()));
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}
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Ok(content)
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}
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}
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impl ShowSet for Packed<BibliographyElem> {
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fn show_set(&self, _: StyleChain) -> Styles {
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const INDENT: Em = Em::new(1.0);
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let mut out = Styles::new();
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out.set(HeadingElem::set_numbering(None));
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out.set(PadElem::set_left(INDENT.into()));
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out
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}
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}
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impl LocalName for Packed<BibliographyElem> {
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const KEY: &'static str = "bibliography";
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}
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/// A loaded bibliography.
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#[derive(Clone, PartialEq)]
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pub struct Bibliography {
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map: Arc<IndexMap<PicoStr, hayagriva::Entry>>,
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hash: u128,
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}
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impl Bibliography {
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/// Parse the bibliography argument.
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fn parse(
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engine: &mut Engine,
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args: &mut Args,
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) -> SourceResult<(BibliographyPaths, Bibliography)> {
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let Spanned { v: paths, span } =
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args.expect::<Spanned<BibliographyPaths>>("path to bibliography file")?;
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// Load bibliography files.
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let data = paths
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.0
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.iter()
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.map(|path| {
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let id = span.resolve_path(path).at(span)?;
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engine.world.file(id).at(span)
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})
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.collect::<SourceResult<Vec<Bytes>>>()?;
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// Parse.
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let bibliography = Self::load(&paths, &data).at(span)?;
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Ok((paths, bibliography))
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}
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/// Load bibliography entries from paths.
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#[comemo::memoize]
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#[typst_macros::time(name = "load bibliography")]
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fn load(paths: &BibliographyPaths, data: &[Bytes]) -> StrResult<Bibliography> {
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let mut map = IndexMap::new();
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let mut duplicates = Vec::<EcoString>::new();
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// We might have multiple bib/yaml files
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for (path, bytes) in paths.0.iter().zip(data) {
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let src = std::str::from_utf8(bytes).map_err(FileError::from)?;
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let ext = Path::new(path.as_str())
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.extension()
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.and_then(OsStr::to_str)
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.unwrap_or_default();
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let library = match ext.to_lowercase().as_str() {
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"yml" | "yaml" => hayagriva::io::from_yaml_str(src)
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.map_err(|err| eco_format!("failed to parse YAML ({err})"))?,
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"bib" => hayagriva::io::from_biblatex_str(src)
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.map_err(|errors| format_biblatex_error(path, src, errors))?,
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_ => bail!("unknown bibliography format (must be .yml/.yaml or .bib)"),
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};
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for entry in library {
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match map.entry(PicoStr::intern(entry.key())) {
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indexmap::map::Entry::Vacant(vacant) => {
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vacant.insert(entry);
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}
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indexmap::map::Entry::Occupied(_) => {
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duplicates.push(entry.key().into());
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}
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}
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}
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}
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if !duplicates.is_empty() {
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bail!("duplicate bibliography keys: {}", duplicates.join(", "));
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}
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Ok(Bibliography {
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map: Arc::new(map),
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hash: typst_utils::hash128(data),
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})
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}
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fn has(&self, key: impl Into<PicoStr>) -> bool {
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self.map.contains_key(&key.into())
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}
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fn iter(&self) -> impl Iterator<Item = (PicoStr, &hayagriva::Entry)> {
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self.map.iter().map(|(&k, v)| (k, v))
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}
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}
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impl Debug for Bibliography {
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fn fmt(&self, f: &mut Formatter) -> fmt::Result {
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f.debug_set().entries(self.map.keys()).finish()
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}
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}
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impl Hash for Bibliography {
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fn hash<H: Hasher>(&self, state: &mut H) {
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self.hash.hash(state);
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}
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}
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/// Format a BibLaTeX loading error.
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fn format_biblatex_error(path: &str, src: &str, errors: Vec<BibLaTeXError>) -> EcoString {
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let Some(error) = errors.first() else {
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return eco_format!("failed to parse BibLaTeX file ({path})");
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};
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let (span, msg) = match error {
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BibLaTeXError::Parse(error) => (&error.span, error.kind.to_string()),
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BibLaTeXError::Type(error) => (&error.span, error.kind.to_string()),
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};
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let line = src.get(..span.start).unwrap_or_default().lines().count();
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eco_format!("failed to parse BibLaTeX file ({path}:{line}: {msg})")
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}
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/// A loaded CSL style.
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#[ty(cast)]
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#[derive(Debug, Clone, PartialEq, Hash)]
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pub struct CslStyle {
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name: Option<EcoString>,
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style: Arc<LazyHash<citationberg::IndependentStyle>>,
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}
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impl CslStyle {
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/// Parse the style argument.
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pub fn parse(engine: &mut Engine, args: &mut Args) -> SourceResult<Option<CslStyle>> {
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let Some(Spanned { v: string, span }) =
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args.named::<Spanned<EcoString>>("style")?
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else {
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return Ok(None);
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};
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Ok(Some(Self::parse_impl(engine, &string, span).at(span)?))
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}
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/// Parse the style argument with `Smart`.
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pub fn parse_smart(
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engine: &mut Engine,
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args: &mut Args,
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) -> SourceResult<Option<Smart<CslStyle>>> {
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let Some(Spanned { v: smart, span }) =
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args.named::<Spanned<Smart<EcoString>>>("style")?
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else {
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return Ok(None);
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};
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Ok(Some(match smart {
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Smart::Auto => Smart::Auto,
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Smart::Custom(string) => {
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Smart::Custom(Self::parse_impl(engine, &string, span).at(span)?)
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}
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}))
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}
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/// Parse internally.
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fn parse_impl(engine: &mut Engine, string: &str, span: Span) -> StrResult<CslStyle> {
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let ext = Path::new(string)
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.extension()
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.and_then(OsStr::to_str)
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.unwrap_or_default()
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.to_lowercase();
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if ext == "csl" {
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let id = span.resolve_path(string)?;
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let data = engine.world.file(id)?;
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CslStyle::from_data(&data)
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} else {
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CslStyle::from_name(string)
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}
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}
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/// Load a built-in CSL style.
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#[comemo::memoize]
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pub fn from_name(name: &str) -> StrResult<CslStyle> {
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match hayagriva::archive::ArchivedStyle::by_name(name).map(ArchivedStyle::get) {
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Some(citationberg::Style::Independent(style)) => Ok(Self {
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name: Some(name.into()),
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style: Arc::new(LazyHash::new(style)),
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}),
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_ => bail!("unknown style: `{name}`"),
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}
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}
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/// Load a CSL style from file contents.
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#[comemo::memoize]
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pub fn from_data(data: &Bytes) -> StrResult<CslStyle> {
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let text = std::str::from_utf8(data.as_slice()).map_err(FileError::from)?;
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citationberg::IndependentStyle::from_xml(text)
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.map(|style| Self { name: None, style: Arc::new(LazyHash::new(style)) })
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.map_err(|err| eco_format!("failed to load CSL style ({err})"))
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}
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/// Get the underlying independent style.
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pub fn get(&self) -> &citationberg::IndependentStyle {
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self.style.as_ref()
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}
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}
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|
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// This Reflect impl is technically a bit wrong because it doesn't say what
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// FromValue and IntoValue really do. Instead, it says what the `style` argument
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// on `bibliography` and `cite` expect (through manual parsing).
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impl Reflect for CslStyle {
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#[comemo::memoize]
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fn input() -> CastInfo {
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let ty = std::iter::once(CastInfo::Type(Type::of::<Str>()));
|
|
let options = hayagriva::archive::ArchivedStyle::all().iter().map(|name| {
|
|
CastInfo::Value(name.names()[0].into_value(), name.display_name())
|
|
});
|
|
CastInfo::Union(ty.chain(options).collect())
|
|
}
|
|
|
|
fn output() -> CastInfo {
|
|
EcoString::output()
|
|
}
|
|
|
|
fn castable(value: &Value) -> bool {
|
|
if let Value::Dyn(dynamic) = &value {
|
|
if dynamic.is::<Self>() {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
false
|
|
}
|
|
}
|
|
|
|
impl FromValue for CslStyle {
|
|
fn from_value(value: Value) -> HintedStrResult<Self> {
|
|
if let Value::Dyn(dynamic) = &value {
|
|
if let Some(concrete) = dynamic.downcast::<Self>() {
|
|
return Ok(concrete.clone());
|
|
}
|
|
}
|
|
|
|
Err(<Self as Reflect>::error(&value))
|
|
}
|
|
}
|
|
|
|
impl IntoValue for CslStyle {
|
|
fn into_value(self) -> Value {
|
|
Value::dynamic(self)
|
|
}
|
|
}
|
|
|
|
impl Repr for CslStyle {
|
|
fn repr(&self) -> EcoString {
|
|
self.name
|
|
.as_ref()
|
|
.map(|name| name.repr())
|
|
.unwrap_or_else(|| "..".into())
|
|
}
|
|
}
|
|
|
|
/// Fully formatted citations and references, generated once (through
|
|
/// memoization) for the whole document. This setup is necessary because
|
|
/// citation formatting is inherently stateful and we need access to all
|
|
/// citations to do it.
|
|
pub(super) struct Works {
|
|
/// Maps from the location of a citation group to its rendered content.
|
|
pub citations: HashMap<Location, SourceResult<Content>>,
|
|
/// Lists all references in the bibliography, with optional prefix, or
|
|
/// `None` if the citation style can't be used for bibliographies.
|
|
pub references: Option<Vec<(Option<Content>, Content)>>,
|
|
/// Whether the bibliography should have hanging indent.
|
|
pub hanging_indent: bool,
|
|
}
|
|
|
|
impl Works {
|
|
/// Generate all citations and the whole bibliography.
|
|
pub fn generate(engine: &Engine) -> StrResult<Arc<Works>> {
|
|
Self::generate_impl(engine.routines, engine.world, engine.introspector)
|
|
}
|
|
|
|
/// The internal implementation of [`Works::generate`].
|
|
#[comemo::memoize]
|
|
fn generate_impl(
|
|
routines: &Routines,
|
|
world: Tracked<dyn World + '_>,
|
|
introspector: Tracked<Introspector>,
|
|
) -> StrResult<Arc<Works>> {
|
|
let mut generator = Generator::new(routines, world, introspector)?;
|
|
let rendered = generator.drive();
|
|
let works = generator.display(&rendered)?;
|
|
Ok(Arc::new(works))
|
|
}
|
|
}
|
|
|
|
/// Context for generating the bibliography.
|
|
struct Generator<'a> {
|
|
/// The routines that is used to evaluate mathematical material in citations.
|
|
routines: &'a Routines,
|
|
/// The world that is used to evaluate mathematical material in citations.
|
|
world: Tracked<'a, dyn World + 'a>,
|
|
/// The document's bibliography.
|
|
bibliography: Packed<BibliographyElem>,
|
|
/// The document's citation groups.
|
|
groups: EcoVec<Content>,
|
|
/// Details about each group that are accumulated while driving hayagriva's
|
|
/// bibliography driver and needed when processing hayagriva's output.
|
|
infos: Vec<GroupInfo>,
|
|
/// Citations with unresolved keys.
|
|
failures: HashMap<Location, SourceResult<Content>>,
|
|
}
|
|
|
|
/// Details about a group of merged citations. All citations are put into groups
|
|
/// of adjacent ones (e.g., `@foo @bar` will merge into a group of length two).
|
|
/// Even single citations will be put into groups of length ones.
|
|
struct GroupInfo {
|
|
/// The group's location.
|
|
location: Location,
|
|
/// The group's span.
|
|
span: Span,
|
|
/// Whether the group should be displayed in a footnote.
|
|
footnote: bool,
|
|
/// Details about the groups citations.
|
|
subinfos: SmallVec<[CiteInfo; 1]>,
|
|
}
|
|
|
|
/// Details about a citation item in a request.
|
|
struct CiteInfo {
|
|
/// The citation's key.
|
|
key: Label,
|
|
/// The citation's supplement.
|
|
supplement: Option<Content>,
|
|
/// Whether this citation was hidden.
|
|
hidden: bool,
|
|
}
|
|
|
|
impl<'a> Generator<'a> {
|
|
/// Create a new generator.
|
|
fn new(
|
|
routines: &'a Routines,
|
|
world: Tracked<'a, dyn World + 'a>,
|
|
introspector: Tracked<Introspector>,
|
|
) -> StrResult<Self> {
|
|
let bibliography = BibliographyElem::find(introspector)?;
|
|
let groups = introspector.query(&CiteGroup::elem().select());
|
|
let infos = Vec::with_capacity(groups.len());
|
|
Ok(Self {
|
|
routines,
|
|
world,
|
|
bibliography,
|
|
groups,
|
|
infos,
|
|
failures: HashMap::new(),
|
|
})
|
|
}
|
|
|
|
/// Drives hayagriva's citation driver.
|
|
fn drive(&mut self) -> hayagriva::Rendered {
|
|
static LOCALES: LazyLock<Vec<citationberg::Locale>> =
|
|
LazyLock::new(hayagriva::archive::locales);
|
|
|
|
let database = self.bibliography.bibliography();
|
|
let bibliography_style = self.bibliography.style(StyleChain::default());
|
|
let styles = Arena::new();
|
|
|
|
// Process all citation groups.
|
|
let mut driver = BibliographyDriver::new();
|
|
for elem in &self.groups {
|
|
let group = elem.to_packed::<CiteGroup>().unwrap();
|
|
let location = elem.location().unwrap();
|
|
let children = group.children();
|
|
|
|
// Groups should never be empty.
|
|
let Some(first) = children.first() else { continue };
|
|
|
|
let mut subinfos = SmallVec::with_capacity(children.len());
|
|
let mut items = Vec::with_capacity(children.len());
|
|
let mut errors = EcoVec::new();
|
|
let mut normal = true;
|
|
|
|
// Create infos and items for each child in the group.
|
|
for child in children {
|
|
let key = *child.key();
|
|
let Some(entry) = database.map.get(&key.into_inner()) else {
|
|
errors.push(error!(
|
|
child.span(),
|
|
"key `{}` does not exist in the bibliography",
|
|
key.resolve()
|
|
));
|
|
continue;
|
|
};
|
|
|
|
let supplement = child.supplement(StyleChain::default());
|
|
let locator = supplement.as_ref().map(|_| {
|
|
SpecificLocator(
|
|
citationberg::taxonomy::Locator::Custom,
|
|
hayagriva::LocatorPayload::Transparent,
|
|
)
|
|
});
|
|
|
|
let mut hidden = false;
|
|
let special_form = match child.form(StyleChain::default()) {
|
|
None => {
|
|
hidden = true;
|
|
None
|
|
}
|
|
Some(CitationForm::Normal) => None,
|
|
Some(CitationForm::Prose) => Some(hayagriva::CitePurpose::Prose),
|
|
Some(CitationForm::Full) => Some(hayagriva::CitePurpose::Full),
|
|
Some(CitationForm::Author) => Some(hayagriva::CitePurpose::Author),
|
|
Some(CitationForm::Year) => Some(hayagriva::CitePurpose::Year),
|
|
};
|
|
|
|
normal &= special_form.is_none();
|
|
subinfos.push(CiteInfo { key, supplement, hidden });
|
|
items.push(CitationItem::new(entry, locator, None, hidden, special_form));
|
|
}
|
|
|
|
if !errors.is_empty() {
|
|
self.failures.insert(location, Err(errors));
|
|
continue;
|
|
}
|
|
|
|
let style = match first.style(StyleChain::default()) {
|
|
Smart::Auto => &bibliography_style.style,
|
|
Smart::Custom(style) => styles.alloc(style.style),
|
|
};
|
|
|
|
self.infos.push(GroupInfo {
|
|
location,
|
|
subinfos,
|
|
span: first.span(),
|
|
footnote: normal
|
|
&& style.settings.class == citationberg::StyleClass::Note,
|
|
});
|
|
|
|
driver.citation(CitationRequest::new(
|
|
items,
|
|
style,
|
|
Some(locale(
|
|
first.lang().copied().unwrap_or(Lang::ENGLISH),
|
|
first.region().copied().flatten(),
|
|
)),
|
|
&LOCALES,
|
|
None,
|
|
));
|
|
}
|
|
|
|
let locale = locale(
|
|
self.bibliography.lang().copied().unwrap_or(Lang::ENGLISH),
|
|
self.bibliography.region().copied().flatten(),
|
|
);
|
|
|
|
// Add hidden items for everything if we should print the whole
|
|
// bibliography.
|
|
if self.bibliography.full(StyleChain::default()) {
|
|
for entry in database.map.values() {
|
|
driver.citation(CitationRequest::new(
|
|
vec![CitationItem::new(entry, None, None, true, None)],
|
|
bibliography_style.get(),
|
|
Some(locale.clone()),
|
|
&LOCALES,
|
|
None,
|
|
));
|
|
}
|
|
}
|
|
|
|
driver.finish(BibliographyRequest {
|
|
style: bibliography_style.get(),
|
|
locale: Some(locale),
|
|
locale_files: &LOCALES,
|
|
})
|
|
}
|
|
|
|
/// Displays hayagriva's output as content for the citations and references.
|
|
fn display(&mut self, rendered: &hayagriva::Rendered) -> StrResult<Works> {
|
|
let citations = self.display_citations(rendered)?;
|
|
let references = self.display_references(rendered)?;
|
|
let hanging_indent =
|
|
rendered.bibliography.as_ref().is_some_and(|b| b.hanging_indent);
|
|
Ok(Works { citations, references, hanging_indent })
|
|
}
|
|
|
|
/// Display the citation groups.
|
|
fn display_citations(
|
|
&mut self,
|
|
rendered: &hayagriva::Rendered,
|
|
) -> StrResult<HashMap<Location, SourceResult<Content>>> {
|
|
// Determine for each citation key where in the bibliography it is,
|
|
// so that we can link there.
|
|
let mut links = HashMap::new();
|
|
if let Some(bibliography) = &rendered.bibliography {
|
|
let location = self.bibliography.location().unwrap();
|
|
for (k, item) in bibliography.items.iter().enumerate() {
|
|
links.insert(item.key.as_str(), location.variant(k + 1));
|
|
}
|
|
}
|
|
|
|
let mut output = std::mem::take(&mut self.failures);
|
|
for (info, citation) in self.infos.iter().zip(&rendered.citations) {
|
|
let supplement = |i: usize| info.subinfos.get(i)?.supplement.clone();
|
|
let link = |i: usize| {
|
|
links.get(info.subinfos.get(i)?.key.resolve().as_str()).copied()
|
|
};
|
|
|
|
let renderer = ElemRenderer {
|
|
routines: self.routines,
|
|
world: self.world,
|
|
span: info.span,
|
|
supplement: &supplement,
|
|
link: &link,
|
|
};
|
|
|
|
let content = if info.subinfos.iter().all(|sub| sub.hidden) {
|
|
Content::empty()
|
|
} else {
|
|
let mut content = renderer.display_elem_children(
|
|
&citation.citation,
|
|
&mut None,
|
|
true,
|
|
)?;
|
|
|
|
if info.footnote {
|
|
content = FootnoteElem::with_content(content).pack();
|
|
}
|
|
|
|
content
|
|
};
|
|
|
|
output.insert(info.location, Ok(content));
|
|
}
|
|
|
|
Ok(output)
|
|
}
|
|
|
|
/// Display the bibliography references.
|
|
#[allow(clippy::type_complexity)]
|
|
fn display_references(
|
|
&self,
|
|
rendered: &hayagriva::Rendered,
|
|
) -> StrResult<Option<Vec<(Option<Content>, Content)>>> {
|
|
let Some(rendered) = &rendered.bibliography else { return Ok(None) };
|
|
|
|
// Determine for each citation key where it first occurred, so that we
|
|
// can link there.
|
|
let mut first_occurrences = HashMap::new();
|
|
for info in &self.infos {
|
|
for subinfo in &info.subinfos {
|
|
let key = subinfo.key.resolve();
|
|
first_occurrences.entry(key).or_insert(info.location);
|
|
}
|
|
}
|
|
|
|
// The location of the bibliography.
|
|
let location = self.bibliography.location().unwrap();
|
|
|
|
let mut output = vec![];
|
|
for (k, item) in rendered.items.iter().enumerate() {
|
|
let renderer = ElemRenderer {
|
|
routines: self.routines,
|
|
world: self.world,
|
|
span: self.bibliography.span(),
|
|
supplement: &|_| None,
|
|
link: &|_| None,
|
|
};
|
|
|
|
// Each reference is assigned a manually created well-known location
|
|
// that is derived from the bibliography's location. This way,
|
|
// citations can link to them.
|
|
let backlink = location.variant(k + 1);
|
|
|
|
// Render the first field.
|
|
let mut prefix = item
|
|
.first_field
|
|
.as_ref()
|
|
.map(|elem| {
|
|
let mut content =
|
|
renderer.display_elem_child(elem, &mut None, false)?;
|
|
if let Some(location) = first_occurrences.get(item.key.as_str()) {
|
|
let dest = Destination::Location(*location);
|
|
content = content.linked(dest);
|
|
}
|
|
StrResult::Ok(content)
|
|
})
|
|
.transpose()?;
|
|
|
|
// Render the main reference content.
|
|
let mut reference =
|
|
renderer.display_elem_children(&item.content, &mut prefix, false)?;
|
|
|
|
// Attach a backlink to either the prefix or the reference so that
|
|
// we can link to the bibliography entry.
|
|
prefix.as_mut().unwrap_or(&mut reference).set_location(backlink);
|
|
|
|
output.push((prefix, reference));
|
|
}
|
|
|
|
Ok(Some(output))
|
|
}
|
|
}
|
|
|
|
/// Renders hayagriva elements into content.
|
|
struct ElemRenderer<'a> {
|
|
/// The routines that is used to evaluate mathematical material in citations.
|
|
routines: &'a Routines,
|
|
/// The world that is used to evaluate mathematical material.
|
|
world: Tracked<'a, dyn World + 'a>,
|
|
/// The span that is attached to all of the resulting content.
|
|
span: Span,
|
|
/// Resolves the supplement of i-th citation in the request.
|
|
supplement: &'a dyn Fn(usize) -> Option<Content>,
|
|
/// Resolves where the i-th citation in the request should link to.
|
|
link: &'a dyn Fn(usize) -> Option<Location>,
|
|
}
|
|
|
|
impl ElemRenderer<'_> {
|
|
/// Display rendered hayagriva elements.
|
|
///
|
|
/// The `prefix` can be a separate content storage where `left-margin`
|
|
/// elements will be accumulated into.
|
|
///
|
|
/// `is_citation` dictates whether whitespace at the start of the citation
|
|
/// will be eliminated. Some CSL styles yield whitespace at the start of
|
|
/// their citations, which should instead be handled by Typst.
|
|
fn display_elem_children(
|
|
&self,
|
|
elems: &hayagriva::ElemChildren,
|
|
prefix: &mut Option<Content>,
|
|
is_citation: bool,
|
|
) -> StrResult<Content> {
|
|
Ok(Content::sequence(
|
|
elems
|
|
.0
|
|
.iter()
|
|
.enumerate()
|
|
.map(|(i, elem)| {
|
|
self.display_elem_child(elem, prefix, is_citation && i == 0)
|
|
})
|
|
.collect::<StrResult<Vec<_>>>()?,
|
|
))
|
|
}
|
|
|
|
/// Display a rendered hayagriva element.
|
|
fn display_elem_child(
|
|
&self,
|
|
elem: &hayagriva::ElemChild,
|
|
prefix: &mut Option<Content>,
|
|
trim_start: bool,
|
|
) -> StrResult<Content> {
|
|
Ok(match elem {
|
|
hayagriva::ElemChild::Text(formatted) => {
|
|
self.display_formatted(formatted, trim_start)
|
|
}
|
|
hayagriva::ElemChild::Elem(elem) => self.display_elem(elem, prefix)?,
|
|
hayagriva::ElemChild::Markup(markup) => self.display_math(markup),
|
|
hayagriva::ElemChild::Link { text, url } => self.display_link(text, url)?,
|
|
hayagriva::ElemChild::Transparent { cite_idx, format } => {
|
|
self.display_transparent(*cite_idx, format)
|
|
}
|
|
})
|
|
}
|
|
|
|
/// Display a block-level element.
|
|
fn display_elem(
|
|
&self,
|
|
elem: &hayagriva::Elem,
|
|
prefix: &mut Option<Content>,
|
|
) -> StrResult<Content> {
|
|
use citationberg::Display;
|
|
|
|
let block_level = matches!(elem.display, Some(Display::Block | Display::Indent));
|
|
|
|
let mut suf_prefix = None;
|
|
let mut content = self.display_elem_children(
|
|
&elem.children,
|
|
if block_level { &mut suf_prefix } else { prefix },
|
|
false,
|
|
)?;
|
|
|
|
if let Some(prefix) = suf_prefix {
|
|
const COLUMN_GUTTER: Em = Em::new(0.65);
|
|
content = GridElem::new(vec![
|
|
GridChild::Item(GridItem::Cell(
|
|
Packed::new(GridCell::new(prefix)).spanned(self.span),
|
|
)),
|
|
GridChild::Item(GridItem::Cell(
|
|
Packed::new(GridCell::new(content)).spanned(self.span),
|
|
)),
|
|
])
|
|
.with_columns(TrackSizings(smallvec![Sizing::Auto; 2]))
|
|
.with_column_gutter(TrackSizings(smallvec![COLUMN_GUTTER.into()]))
|
|
.pack()
|
|
.spanned(self.span);
|
|
}
|
|
|
|
match elem.display {
|
|
Some(Display::Block) => {
|
|
content = BlockElem::new()
|
|
.with_body(Some(BlockBody::Content(content)))
|
|
.pack()
|
|
.spanned(self.span);
|
|
}
|
|
Some(Display::Indent) => {
|
|
content = PadElem::new(content).pack().spanned(self.span);
|
|
}
|
|
Some(Display::LeftMargin) => {
|
|
*prefix.get_or_insert_with(Default::default) += content;
|
|
return Ok(Content::empty());
|
|
}
|
|
_ => {}
|
|
}
|
|
|
|
if let Some(hayagriva::ElemMeta::Entry(i)) = elem.meta {
|
|
if let Some(location) = (self.link)(i) {
|
|
let dest = Destination::Location(location);
|
|
content = content.linked(dest);
|
|
}
|
|
}
|
|
|
|
Ok(content)
|
|
}
|
|
|
|
/// Display math.
|
|
fn display_math(&self, math: &str) -> Content {
|
|
(self.routines.eval_string)(
|
|
self.routines,
|
|
self.world,
|
|
math,
|
|
self.span,
|
|
EvalMode::Math,
|
|
Scope::new(),
|
|
)
|
|
.map(Value::display)
|
|
.unwrap_or_else(|_| TextElem::packed(math).spanned(self.span))
|
|
}
|
|
|
|
/// Display a link.
|
|
fn display_link(&self, text: &hayagriva::Formatted, url: &str) -> StrResult<Content> {
|
|
let dest = Destination::Url(Url::new(url)?);
|
|
Ok(LinkElem::new(dest.into(), self.display_formatted(text, false))
|
|
.pack()
|
|
.spanned(self.span))
|
|
}
|
|
|
|
/// Display transparent pass-through content.
|
|
fn display_transparent(&self, i: usize, format: &hayagriva::Formatting) -> Content {
|
|
let content = (self.supplement)(i).unwrap_or_default();
|
|
apply_formatting(content, format)
|
|
}
|
|
|
|
/// Display formatted hayagriva text as content.
|
|
fn display_formatted(
|
|
&self,
|
|
formatted: &hayagriva::Formatted,
|
|
trim_start: bool,
|
|
) -> Content {
|
|
let formatted_text = if trim_start {
|
|
formatted.text.trim_start()
|
|
} else {
|
|
formatted.text.as_str()
|
|
};
|
|
|
|
let content = TextElem::packed(formatted_text).spanned(self.span);
|
|
apply_formatting(content, &formatted.formatting)
|
|
}
|
|
}
|
|
|
|
/// Applies formatting to content.
|
|
fn apply_formatting(mut content: Content, format: &hayagriva::Formatting) -> Content {
|
|
match format.font_style {
|
|
citationberg::FontStyle::Normal => {}
|
|
citationberg::FontStyle::Italic => {
|
|
content = content.styled(TextElem::set_style(FontStyle::Italic));
|
|
}
|
|
}
|
|
|
|
match format.font_variant {
|
|
citationberg::FontVariant::Normal => {}
|
|
citationberg::FontVariant::SmallCaps => {
|
|
content = content.styled(TextElem::set_smallcaps(true));
|
|
}
|
|
}
|
|
|
|
match format.font_weight {
|
|
citationberg::FontWeight::Normal => {}
|
|
citationberg::FontWeight::Bold => {
|
|
content = content.styled(TextElem::set_delta(WeightDelta(300)));
|
|
}
|
|
citationberg::FontWeight::Light => {
|
|
content = content.styled(TextElem::set_delta(WeightDelta(-100)));
|
|
}
|
|
}
|
|
|
|
match format.text_decoration {
|
|
citationberg::TextDecoration::None => {}
|
|
citationberg::TextDecoration::Underline => {
|
|
content = content.underlined();
|
|
}
|
|
}
|
|
|
|
let span = content.span();
|
|
match format.vertical_align {
|
|
citationberg::VerticalAlign::None => {}
|
|
citationberg::VerticalAlign::Baseline => {}
|
|
citationberg::VerticalAlign::Sup => {
|
|
// Add zero-width weak spacing to make the superscript "sticky".
|
|
content = HElem::hole().pack() + SuperElem::new(content).pack().spanned(span);
|
|
}
|
|
citationberg::VerticalAlign::Sub => {
|
|
content = HElem::hole().pack() + SubElem::new(content).pack().spanned(span);
|
|
}
|
|
}
|
|
|
|
content
|
|
}
|
|
|
|
/// Create a locale code from language and optionally region.
|
|
fn locale(lang: Lang, region: Option<Region>) -> citationberg::LocaleCode {
|
|
let mut value = String::with_capacity(5);
|
|
value.push_str(lang.as_str());
|
|
if let Some(region) = region {
|
|
value.push('-');
|
|
value.push_str(region.as_str())
|
|
}
|
|
citationberg::LocaleCode(value)
|
|
}
|