40 lines
1 KiB
Rust
40 lines
1 KiB
Rust
//! Book preprocessing.
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pub use self::index::IndexPreprocessor;
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pub use self::links::LinkPreprocessor;
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mod index;
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mod links;
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use book::Book;
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use config::Config;
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use errors::*;
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use std::path::PathBuf;
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/// Extra information for a `Preprocessor` to give them more context when
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/// processing a book.
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pub struct PreprocessorContext {
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/// The location of the book directory on disk.
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pub root: PathBuf,
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/// The book configuration (`book.toml`).
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pub config: Config,
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}
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impl PreprocessorContext {
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/// Create a new `PreprocessorContext`.
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pub(crate) fn new(root: PathBuf, config: Config) -> Self {
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PreprocessorContext { root, config }
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}
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}
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/// An operation which is run immediately after loading a book into memory and
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/// before it gets rendered.
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pub trait Preprocessor {
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/// Get the `Preprocessor`'s name.
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fn name(&self) -> &str;
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/// Run this `Preprocessor`, allowing it to update the book before it is
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/// given to a renderer.
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fn run(&self, ctx: &PreprocessorContext, book: &mut Book) -> Result<()>;
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}
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