diff options
Diffstat (limited to 'src/model/library.rs')
| -rw-r--r-- | src/model/library.rs | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/src/model/library.rs b/src/model/library.rs deleted file mode 100644 index 8ef22f10..00000000 --- a/src/model/library.rs +++ /dev/null @@ -1,144 +0,0 @@ -use std::fmt::{self, Debug, Formatter}; -use std::hash::{Hash, Hasher}; -use std::num::NonZeroUsize; - -use ecow::EcoString; -use once_cell::sync::OnceCell; - -use super::{Content, Module, NodeId, StyleChain, StyleMap, Vt}; -use crate::diag::SourceResult; -use crate::doc::Document; -use crate::geom::{Abs, Dir}; -use crate::util::hash128; - -/// Definition of Typst's standard library. -#[derive(Debug, Clone, Hash)] -pub struct Library { - /// The scope containing definitions that are available everywhere. - pub global: Module, - /// The scope containing definitions available in math mode. - pub math: Module, - /// The default properties for page size, font selection and so on. - pub styles: StyleMap, - /// Defines which standard library items fulfill which syntactical roles. - pub items: LangItems, -} - -/// Definition of library items the language is aware of. -#[derive(Clone)] -pub struct LangItems { - /// The root layout function. - pub layout: - fn(vt: &mut Vt, content: &Content, styles: StyleChain) -> SourceResult<Document>, - /// Access the em size. - pub em: fn(StyleChain) -> Abs, - /// Access the text direction. - pub dir: fn(StyleChain) -> Dir, - /// Whitespace. - pub space: fn() -> Content, - /// A forced line break: `\`. - pub linebreak: fn() -> Content, - /// Plain text without markup. - pub text: fn(text: EcoString) -> Content, - /// The id of the text node. - pub text_id: NodeId, - /// Get the string if this is a text node. - pub text_str: fn(&Content) -> Option<&str>, - /// A smart quote: `'` or `"`. - pub smart_quote: fn(double: bool) -> Content, - /// A paragraph break. - pub parbreak: fn() -> Content, - /// Strong content: `*Strong*`. - pub strong: fn(body: Content) -> Content, - /// Emphasized content: `_Emphasized_`. - pub emph: fn(body: Content) -> Content, - /// Raw text with optional syntax highlighting: `` `...` ``. - pub raw: fn(text: EcoString, tag: Option<EcoString>, block: bool) -> Content, - /// A hyperlink: `https://typst.org`. - pub link: fn(url: EcoString) -> Content, - /// A reference: `@target`. - pub ref_: fn(target: EcoString) -> Content, - /// A section heading: `= Introduction`. - pub heading: fn(level: NonZeroUsize, body: Content) -> Content, - /// An item in a bullet list: `- ...`. - pub list_item: fn(body: Content) -> Content, - /// An item in an enumeration (numbered list): `+ ...` or `1. ...`. - pub enum_item: fn(number: Option<NonZeroUsize>, body: Content) -> Content, - /// An item in a term list: `/ Term: Details`. - pub term_item: fn(term: Content, description: Content) -> Content, - /// A mathematical formula: `$x$`, `$ x^2 $`. - pub formula: fn(body: Content, block: bool) -> Content, - /// An alignment point in a formula: `&`. - pub math_align_point: fn() -> Content, - /// Matched delimiters surrounding math in a formula: `[x + y]`. - pub math_delimited: fn(open: Content, body: Content, close: Content) -> Content, - /// A base with optional attachments in a formula: `a_1^2`. - pub math_attach: - fn(base: Content, bottom: Option<Content>, top: Option<Content>) -> Content, - /// A base with an accent: `arrow(x)`. - pub math_accent: fn(base: Content, accent: char) -> Content, - /// A fraction in a formula: `x/2`. - pub math_frac: fn(num: Content, denom: Content) -> Content, -} - -impl Debug for LangItems { - fn fmt(&self, f: &mut Formatter) -> fmt::Result { - f.pad("LangItems { .. }") - } -} - -impl Hash for LangItems { - fn hash<H: Hasher>(&self, state: &mut H) { - (self.layout as usize).hash(state); - (self.em as usize).hash(state); - (self.dir as usize).hash(state); - self.space.hash(state); - self.linebreak.hash(state); - self.text.hash(state); - self.text_id.hash(state); - (self.text_str as usize).hash(state); - self.smart_quote.hash(state); - self.parbreak.hash(state); - self.strong.hash(state); - self.emph.hash(state); - self.raw.hash(state); - self.link.hash(state); - self.ref_.hash(state); - self.heading.hash(state); - self.list_item.hash(state); - self.enum_item.hash(state); - self.term_item.hash(state); - self.formula.hash(state); - self.math_align_point.hash(state); - self.math_delimited.hash(state); - self.math_attach.hash(state); - self.math_accent.hash(state); - self.math_frac.hash(state); - } -} - -/// Global storage for lang items. -#[doc(hidden)] -pub static LANG_ITEMS: OnceCell<LangItems> = OnceCell::new(); - -/// Set the lang items. This is a hack :( -/// -/// Passing the lang items everywhere they are needed (especially the text node -/// related things) is very painful. By storing them globally, in theory, we -/// break incremental, but only when different sets of lang items are used in -/// the same program. For this reason, if this function is called multiple -/// times, the items must be the same. -pub fn set_lang_items(items: LangItems) { - if let Err(items) = LANG_ITEMS.set(items) { - let first = hash128(LANG_ITEMS.get().unwrap()); - let second = hash128(&items); - assert_eq!(first, second, "set differing lang items"); - } -} - -/// Access a lang item. -macro_rules! item { - ($name:ident) => { - $crate::model::LANG_ITEMS.get().unwrap().$name - }; -} |
