diff --git a/.gitignore b/.gitignore
index 564055b328f2..62bf91f0305a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
/book/
-/target/
+target/
+po/messages.pot
diff --git a/TRANSLATIONS.md b/TRANSLATIONS.md
new file mode 100644
index 000000000000..606ba2106927
--- /dev/null
+++ b/TRANSLATIONS.md
@@ -0,0 +1,116 @@
+# Translations of Comprehensive Rust 🦀
+
+We would love to have your help with translating the course into other
+languages! We use the [Gettext] system for translations. This means that you
+don't modify the Markdown files directly: instead you modify `.po` files in a
+`po/` directory. The `.po` files are small text-based translation databases.
+
+There is a `.po` file for each language. They are named after the [ISO 639]
+language codes: Danish would go into `po/da.po`, Korean would go into
+`po/ko.po`, etc. The `.po` files contain all the English text plus the
+translations. They are initialized from a `messages.pot` file (a PO template)
+which contains only the English text.
+
+We will show how to update and manipulate the `.po` and `.pot` files using the
+GNU Gettext utilities below.
+
+[Gettext]: https://www.gnu.org/software/gettext/manual/html_node/index.html
+[ISO 639]: https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
+
+## I18n Helpers
+
+We use two helpers for the translations:
+
+* `mdbook-xgettext`: This program extracts the English text. It is an mdbook
+ renderer.
+* `mdbook-gettext`: This program translates the book into a target language. It
+ is an mdbook preprocessor.
+
+Install both helpers with the following command from the root of the course:
+
+```shell
+$ cargo install --path i18n-helpers
+```
+
+## Creating and Updating Translations
+
+First, you need to know how to update the `.pot` and `.po` files.
+
+As a general rule, you should never touch the auto-generated `po/messages.pot`
+file. You should also not edit the `msgid` entries in a `po/xx.po` file. If you
+find mistakes, you need to update the original English text instead. The fixes
+to the English text will flow into the `.po` files the next time the translators
+update them.
+
+### Generating the PO Template
+
+To extract the original English text and generate a `messages.pot` file, you run
+`mdbook` with a special renderer:
+
+```shell
+$ MDBOOK_OUTPUT='{"xgettext": {}}' \
+ mdbook build -d po
+```
+
+You will find the generated POT file as `po/messages.pot`.
+
+### Initialize a New Translation
+
+To start a new translation, first generate the `po/messages.pot` file. Then use
+`msginit` to create a `xx.po` file for the fictional `xx` language:
+
+```shell
+$ msginit -i po/messages.pot -l xx -o po/xx.po
+```
+
+You can also simply copy `po/messages.pot` to `po/xx.po`. Then update the file
+header (the first entry with `msgid ""`) to the correct language.
+
+### Updating an Existing Translation
+
+As the English text changes, translations gradually become outdated. To update
+the `po/xx.po` file with new messages, first extract the English text into a
+`po/messages.pot` template file. Then run
+
+```shell
+$ msgmerge --update po/xx.po po/messages.pot
+```
+
+Unchanged messages will stay intact, deleted messages are marked as old, and
+updated messages are marked "fuzzy". A fuzzy entry will reuse the previous
+translation: you should then go over it and update it as necessary before you
+remove the fuzzy marker.
+
+## Using Translations
+
+This will show you how to use the translations to generate localized HTML
+output.
+
+## Building a Translation
+
+To use the `po/xx.po` file for your output, run the following command:
+
+```shell
+$ MDBOOK_BOOK__LANGUAGE=xx \
+ MDBOOK_PREPROCESSOR__GETTEXT__PO_FILE=po/xx.po \
+ MDBOOK_PREPROCESSOR__GETTEXT__RENDERERS='["html"]' \
+ MDBOOK_PREPROCESSOR__GETTEXT__BEFORE='["svgbob"]' \
+ mdbook build -d book/xx
+```
+
+This will update the book's language to `xx`, it will make the `mdbook-gettext`
+preprocessor become active and tell it to use the `po/xx.po` file, and finally
+it will redirect the output to `book/xx`.
+
+## Serving a Translation
+
+Like normal, you can use `mdbook serve` to view your translation as you work on
+it. You use the same command as with `mdbook build` above, but additionally
+we'll tell `mdbook` to watch the `po/` directory for changes:
+
+```shell
+$ MDBOOK_BOOK__LANGUAGE=xx \
+ MDBOOK_PREPROCESSOR__GETTEXT__PO_FILE=po/xx.po
+ MDBOOK_BUILD__EXTRA_WATCH_DIRS='["po"]'
+ mdbook serve -d book/xx
+```
diff --git a/book.toml b/book.toml
index 32e858438f91..252e5085ea1e 100644
--- a/book.toml
+++ b/book.toml
@@ -8,7 +8,14 @@ title = "Comprehensive Rust 🦀"
[rust]
edition = "2021"
+[preprocessor.links]
+renderers = ["html"]
+
+[preprocessor.index]
+renderers = ["html"]
+
[preprocessor.svgbob]
+renderers = ["html"]
class = "bob"
[output.html]
diff --git a/i18n-helpers/Cargo.lock b/i18n-helpers/Cargo.lock
new file mode 100644
index 000000000000..90697099311d
--- /dev/null
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diff --git a/i18n-helpers/Cargo.toml b/i18n-helpers/Cargo.toml
new file mode 100644
index 000000000000..adc750292d39
--- /dev/null
+++ b/i18n-helpers/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "i18n-helpers"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[dependencies]
+anyhow = "1.0.68"
+mdbook = "0.4.25"
+once_cell = "1.17.0"
+polib = "0.1.0"
+regex = "1.7.0"
+semver = "1.0.16"
+serde_json = "1.0.91"
diff --git a/i18n-helpers/src/bin/mdbook-gettext.rs b/i18n-helpers/src/bin/mdbook-gettext.rs
new file mode 100644
index 000000000000..7c14a8319f30
--- /dev/null
+++ b/i18n-helpers/src/bin/mdbook-gettext.rs
@@ -0,0 +1,230 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! `gettext` for `mdbook`
+//!
+//! This program works like `gettext`, meaning it will translate
+//! strings in your book.
+//!
+//! The translations come from GNU Gettext `xx.po` files. You must set
+//! preprocessor.gettext.po-file to the PO file to use. If unset, a
+//! warning is issued while building the book.
+//!
+//! See `TRANSLATIONS.md` in the repository root for more information.
+
+use anyhow::{anyhow, Context};
+use i18n_helpers::extract_paragraphs;
+use mdbook::book::Book;
+use mdbook::preprocess::{CmdPreprocessor, PreprocessorContext};
+use mdbook::BookItem;
+use polib::catalog::Catalog;
+use polib::po_file;
+use semver::{Version, VersionReq};
+use std::io;
+use std::path::Path;
+use std::process;
+
+fn translate(text: &str, catalog: &Catalog) -> String {
+ let mut output = String::with_capacity(text.len());
+ let mut target_lineno = 1;
+
+ for (lineno, paragraph) in extract_paragraphs(text) {
+ // Fill in blank lines between paragraphs. This is important
+ // for code blocks where blank lines are significant.
+ while target_lineno < lineno {
+ output.push('\n');
+ target_lineno += 1;
+ }
+ // Subtract 1 because the paragraph is missing a final '\n'
+ // due to the splitting in `extract_paragraphs`.
+ target_lineno += paragraph.lines().count() - 1;
+
+ let translated = catalog
+ .find_message(paragraph)
+ .and_then(|msg| msg.get_msgstr().ok())
+ .filter(|msgstr| !msgstr.is_empty())
+ .map(|msgstr| msgstr.as_str())
+ .unwrap_or(paragraph);
+ output.push_str(translated);
+ }
+
+ let suffix = &text[text.trim_end_matches('\n').len()..];
+ output.push_str(suffix);
+ output
+}
+
+fn translate_book(ctx: &PreprocessorContext, mut book: Book) -> anyhow::Result<Book> {
+ let cfg = ctx
+ .config
+ .get_preprocessor("gettext")
+ .ok_or_else(|| anyhow!("Could not read preprocessor.gettext configuration"))?;
+ let path = cfg
+ .get("po-file")
+ .ok_or_else(|| anyhow!("Missing preprocessor.gettext.po-file config value"))?
+ .as_str()
+ .ok_or_else(|| anyhow!("Expected a string for preprocessor.gettext.po-file"))?;
+ let catalog = po_file::parse(Path::new(path))
+ .map_err(|err| anyhow!("{err}"))
+ .with_context(|| format!("Could not parse {path} as PO file"))?;
+
+ book.for_each_mut(|item| match item {
+ BookItem::Chapter(ch) => {
+ ch.content = translate(&ch.content, &catalog);
+ ch.name = translate(&ch.name, &catalog);
+ }
+ BookItem::Separator => {}
+ BookItem::PartTitle(title) => {
+ *title = translate(title, &catalog);
+ }
+ });
+
+ Ok(book)
+}
+
+fn preprocess() -> anyhow::Result<()> {
+ let (ctx, book) = CmdPreprocessor::parse_input(io::stdin())?;
+ let book_version = Version::parse(&ctx.mdbook_version)?;
+ let version_req = VersionReq::parse(mdbook::MDBOOK_VERSION)?;
+ if !version_req.matches(&book_version) {
+ eprintln!(
+ "Warning: The gettext preprocessor was built against \
+ mdbook version {}, but we're being called from version {}",
+ mdbook::MDBOOK_VERSION,
+ ctx.mdbook_version
+ );
+ }
+
+ let translated_book = translate_book(&ctx, book)?;
+ serde_json::to_writer(io::stdout(), &translated_book)?;
+
+ Ok(())
+}
+
+fn main() -> anyhow::Result<()> {
+ if std::env::args().len() == 3 {
+ assert_eq!(std::env::args().nth(1).as_deref(), Some("supports"));
+ // Signal that we support all renderers.
+ process::exit(0);
+ }
+
+ preprocess()
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use polib::message::Message;
+
+ fn create_catalog(translations: &[(&str, &str)]) -> Catalog {
+ let mut catalog = Catalog::new();
+ for (msgid, msgstr) in translations {
+ let message = Message::new_singular("", "", "", "", msgid, msgstr);
+ catalog.add_message(message);
+ }
+ catalog
+ }
+
+ #[test]
+ fn test_translate_single_line() {
+ let catalog = create_catalog(&[("foo bar", "FOO BAR")]);
+ assert_eq!(translate("foo bar", &catalog), "FOO BAR");
+ }
+
+ #[test]
+ fn test_translate_single_paragraph() {
+ let catalog = create_catalog(&[("foo bar", "FOO BAR")]);
+ assert_eq!(translate("foo bar\n", &catalog), "FOO BAR\n");
+ }
+
+ #[test]
+ fn test_translate_paragraph_with_leading_newlines() {
+ let catalog = create_catalog(&[("foo bar", "FOO BAR")]);
+ assert_eq!(translate("\n\n\nfoo bar\n", &catalog), "\n\n\nFOO BAR\n");
+ }
+
+ #[test]
+ fn test_translate_paragraph_with_trailing_newlines() {
+ let catalog = create_catalog(&[("foo bar", "FOO BAR")]);
+ assert_eq!(translate("foo bar\n\n\n", &catalog), "FOO BAR\n\n\n");
+ }
+
+ #[test]
+ fn test_translate_multiple_paragraphs() {
+ let catalog = create_catalog(&[("foo bar", "FOO BAR")]);
+ assert_eq!(
+ translate(
+ "first paragraph\n\
+ \n\
+ foo bar\n\
+ \n\
+ last paragraph\n",
+ &catalog
+ ),
+ "first paragraph\n\
+ \n\
+ FOO BAR\n\
+ \n\
+ last paragraph\n"
+ );
+ }
+
+ #[test]
+ fn test_translate_multiple_paragraphs_extra_newlines() {
+ // Notice how the translated paragraphs have more lines.
+ let catalog = create_catalog(&[
+ (
+ "first\n\
+ paragraph",
+ "FIRST\n\
+ TRANSLATED\n\
+ PARAGRAPH",
+ ),
+ (
+ "last\n\
+ paragraph",
+ "LAST\n\
+ TRANSLATED\n\
+ PARAGRAPH",
+ ),
+ ]);
+ // Paragraph separation is kept intact while translating.
+ assert_eq!(
+ translate(
+ "\n\
+ first\n\
+ paragraph\n\
+ \n\
+ \n\
+ \n\
+ last\n\
+ paragraph\n\
+ \n\
+ \n",
+ &catalog
+ ),
+ "\n\
+ FIRST\n\
+ TRANSLATED\n\
+ PARAGRAPH\n\
+ \n\
+ \n\
+ \n\
+ LAST\n\
+ TRANSLATED\n\
+ PARAGRAPH\n\
+ \n\
+ \n"
+ );
+ }
+}
diff --git a/i18n-helpers/src/bin/mdbook-xgettext.rs b/i18n-helpers/src/bin/mdbook-xgettext.rs
new file mode 100644
index 000000000000..22d7570b0e40
--- /dev/null
+++ b/i18n-helpers/src/bin/mdbook-xgettext.rs
@@ -0,0 +1,124 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! `xgettext` for `mdbook`
+//!
+//! This program works like `xgettext`, meaning it will extract
+//! translatable strings from your book. The strings are saved in a
+//! GNU Gettext `messages.pot` file in your build directory (typically
+//! `po/messages.pot`).
+//!
+//! See `TRANSLATIONS.md` in the repository root for more information.
+
+use anyhow::{anyhow, Context};
+use mdbook::renderer::RenderContext;
+use mdbook::BookItem;
+use polib::catalog::Catalog;
+use polib::message::Message;
+use std::fs;
+use std::io;
+
+fn add_message(catalog: &mut Catalog, msgid: &str, source: &str) {
+ let sources = match catalog.find_message(msgid) {
+ Some(msg) => format!("{}\n{}", msg.source, source),
+ None => String::from(source),
+ };
+ let message = Message::new_singular("", &sources, "", "", msgid, "");
+
+ // Carefully update the existing message or add a new one. It's an
+ // error to create a catalog with duplicate msgids.
+ match catalog.find_message_index(msgid) {
+ Some(&idx) => catalog.update_message_by_index(idx, message).unwrap(),
+ None => catalog.add_message(message),
+ }
+}
+
+fn create_catalog(ctx: &RenderContext) -> anyhow::Result<Catalog> {
+ let mut catalog = Catalog::new();
+ if let Some(title) = &ctx.config.book.title {
+ catalog.metadata.project_id_version = String::from(title);
+ }
+ if let Some(lang) = &ctx.config.book.language {
+ catalog.metadata.language = String::from(lang);
+ }
+ catalog.metadata.mime_version = String::from("1.0");
+ catalog.metadata.content_type = String::from("text/plain; charset=UTF-8");
+ catalog.metadata.content_transfer_encoding = String::from("8bit");
+
+ let summary_path = ctx.config.book.src.join("SUMMARY.md");
+ let summary = std::fs::read_to_string(ctx.root.join(&summary_path))?;
+
+ // First, add all chapter names and part titles from SUMMARY.md.
+ // The book items are in order of the summary, so we can assign
+ // correct line numbers for duplicate lines by tracking the index
+ // of our last search.
+ let mut last_idx = 0;
+ for item in ctx.book.iter() {
+ let line = match item {
+ BookItem::Chapter(chapter) => &chapter.name,
+ BookItem::PartTitle(title) => title,
+ BookItem::Separator => continue,
+ };
+
+ let idx = summary[last_idx..].find(line).ok_or_else(|| {
+ anyhow!("Could not find {line:?} in SUMMARY.md (from offset {last_idx})")
+ })?;
+ last_idx += idx;
+ let lineno = summary[..last_idx].lines().count();
+ let source = format!("{}:{}", summary_path.display(), lineno);
+ add_message(&mut catalog, line, &source);
+ }
+
+ // Next, we add the chapter contents.
+ for item in ctx.book.iter() {
+ if let BookItem::Chapter(chapter) = item {
+ let path = match &chapter.path {
+ Some(path) => ctx.config.book.src.join(path),
+ None => continue,
+ };
+ for (lineno, paragraph) in i18n_helpers::extract_paragraphs(&chapter.content)
+ {
+ let source = format!("{}:{}", path.display(), lineno);
+ add_message(&mut catalog, paragraph, &source);
+ }
+ }
+ }
+
+ Ok(catalog)
+}
+
+fn main() -> anyhow::Result<()> {
+ let ctx = RenderContext::from_json(&mut io::stdin()).context("Parsing stdin")?;
+ let cfg = ctx
+ .config
+ .get_renderer("xgettext")
+ .ok_or_else(|| anyhow!("Could not read output.xgettext configuration"))?;
+ let path = cfg
+ .get("pot-file")
+ .ok_or_else(|| anyhow!("Missing output.xgettext.pot-file config value"))?
+ .as_str()
+ .ok_or_else(|| anyhow!("Expected a string for output.xgettext.pot-file"))?;
+ fs::create_dir_all(&ctx.destination)
+ .with_context(|| format!("Could not create {}", ctx.destination.display()))?;
+ let output_path = ctx.destination.join(path);
+ if output_path.exists() {
+ fs::remove_file(&output_path)
+ .with_context(|| format!("Removing {}", output_path.display()))?
+ }
+ let catalog = create_catalog(&ctx).context("Extracting messages")?;
+ polib::po_file::write(&catalog, &output_path)
+ .with_context(|| format!("Writing messages to {}", output_path.display()))?;
+
+ Ok(())
+}
diff --git a/i18n-helpers/src/lib.rs b/i18n-helpers/src/lib.rs
new file mode 100644
index 000000000000..d16ef1fc33ec
--- /dev/null
+++ b/i18n-helpers/src/lib.rs
@@ -0,0 +1,106 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use once_cell::sync::Lazy;
+use regex::Regex;
+
+static PARAGRAPH_SEPARATOR: Lazy<Regex> = Lazy::new(|| Regex::new(r"\n\n+").unwrap());
+
+/// Extract paragraphs from text.
+///
+/// Paragraphs are separated by at least two newlines. Returns an
+/// iterator over line numbers (starting from 1) and paragraphs.
+pub fn extract_paragraphs(text: &str) -> impl Iterator<Item = (usize, &str)> {
+ // TODO: This could be made more sophisticated by parsing the
+ // Markdown and stripping off the markup characters.
+ //
+ // As an example, a header like "## My heading" could become just
+ // "My heading" in the `.pot` file. Similarly, paragraphs could be
+ // unfolded and list items could be translated one-by-one.
+
+ // Skip over leading empty lines.
+ let trimmed = text.trim_start_matches('\n');
+ let mut matches = PARAGRAPH_SEPARATOR.find_iter(trimmed);
+ let mut lineno = 1 + text.len() - trimmed.len();
+ let mut last = 0;
+
+ std::iter::from_fn(move || match matches.next() {
+ Some(m) => {
+ let result = (lineno, &trimmed[last..m.start()]);
+ lineno += trimmed[last..m.end()].lines().count();
+ last = m.end();
+ Some(result)
+ }
+ None => {
+ if last < trimmed.len() {
+ let result = (lineno, trimmed[last..].trim_end_matches('\n'));
+ last = trimmed.len();
+ Some(result)
+ } else {
+ None
+ }
+ }
+ })
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ macro_rules! assert_iter_eq {
+ ($left_iter:expr, $right:expr) => {
+ assert_eq!($left_iter.collect::<Vec<_>>(), $right)
+ };
+ }
+
+ #[test]
+ fn test_extract_paragraphs_empty() {
+ assert_iter_eq!(extract_paragraphs(""), vec![]);
+ }
+
+ #[test]
+ fn test_extract_paragraphs_single_line() {
+ assert_iter_eq!(
+ extract_paragraphs("This is a paragraph."),
+ vec![(1, "This is a paragraph.")]
+ );
+ }
+
+ #[test]
+ fn test_extract_paragraphs_simple() {
+ assert_iter_eq!(
+ extract_paragraphs("This is\nthe first\nparagraph.\n\nSecond paragraph."),
+ vec![
+ (1, "This is\nthe first\nparagraph."),
+ (5, "Second paragraph.")
+ ]
+ );
+ }
+
+ #[test]
+ fn test_extract_paragraphs_leading_newlines() {
+ assert_iter_eq!(
+ extract_paragraphs("\n\n\nThis is\na paragraph."),
+ vec![(4, "This is\na paragraph.")]
+ );
+ }
+
+ #[test]
+ fn test_extract_paragraphs_trailing_newlines() {
+ assert_iter_eq!(
+ extract_paragraphs("This is\na paragraph.\n\n\n"),
+ vec![(1, "This is\na paragraph.")]
+ );
+ }
+}
diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index e42dbf56f1bb..7a9aa65781dd 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -26,19 +26,19 @@
- [References](basic-syntax/references.md)
- [Dangling References](basic-syntax/references-dangling.md)
- [Slices](basic-syntax/slices.md)
- - [`String` vs `str`](basic-syntax/string-slices.md)
+ - [String vs str](basic-syntax/string-slices.md)
- [Functions](basic-syntax/functions.md)
- [Methods](basic-syntax/methods.md)
- [Overloading](basic-syntax/functions-interlude.md)
- [Exercises](exercises/day-1/morning.md)
- [Implicit Conversions](exercises/day-1/implicit-conversions.md)
- - [Arrays and `for` Loops](exercises/day-1/for-loops.md)
+ - [Arrays and for Loops](exercises/day-1/for-loops.md)
# Day 1: Afternoon
- [Variables](basic-syntax/variables.md)
- [Type Inference](basic-syntax/type-inference.md)
- - [`static` & `const`](basic-syntax/static-and-const.md))
+ - [static & const](basic-syntax/static-and-const.md))
- [Scopes and Shadowing](basic-syntax/scopes-shadowing.md)
- [Memory Management](memory-management.md)
- [Stack vs Heap](memory-management/stack-vs-heap.md)
@@ -91,23 +91,23 @@
- [Control Flow](control-flow.md)
- [Blocks](control-flow/blocks.md)
- - [`if` expressions](control-flow/if-expressions.md)
- - [`if let` expressions](control-flow/if-let-expressions.md)
- - [`while` expressions](control-flow/while-expressions.md)
- - [`while let` expressions](control-flow/while-let-expressions.md)
- - [`for` expressions](control-flow/for-expressions.md)
- - [`loop` expressions](control-flow/loop-expressions.md)
- - [`match` expressions](control-flow/match-expressions.md)
- - [`break` & `continue`](control-flow/break-continue.md)
+ - [if expressions](control-flow/if-expressions.md)
+ - [if let expressions](control-flow/if-let-expressions.md)
+ - [while expressions](control-flow/while-expressions.md)
+ - [while let expressions](control-flow/while-let-expressions.md)
+ - [for expressions](control-flow/for-expressions.md)
+ - [loop expressions](control-flow/loop-expressions.md)
+ - [match expressions](control-flow/match-expressions.md)
+ - [break & continue](control-flow/break-continue.md)
- [Standard Library](std.md)
- - [`String`](std/string.md)
- - [`Option` and `Result`](std/option-result.md)
- - [`Vec`](std/vec.md)
- - [`HashMap`](std/hashmap.md)
- - [`Box`](std/box.md)
- - [`Recursive Data Types`](std/box-recursive.md)
- - [`Niche Optimization`](std/box-niche.md)
- - [`Rc`](std/rc.md)
+ - [String](std/string.md)
+ - [Option and Result](std/option-result.md)
+ - [Vec](std/vec.md)
+ - [HashMap](std/hashmap.md)
+ - [Box](std/box.md)
+ - [Recursive Data Types](std/box-recursive.md)
+ - [Niche Optimization](std/box-niche.md)
+ - [Rc](std/rc.md)
- [Modules](modules.md)
- [Visibility](modules/visibility.md)
- [Paths](modules/paths.md)
@@ -126,16 +126,16 @@
- [Deriving Traits](traits/deriving-traits.md)
- [Default Methods](traits/default-methods.md)
- [Important Traits](traits/important-traits.md)
- - [`Iterator`](traits/iterator.md)
- - [`From` and `Into`](traits/from-into.md)
- - [`Read` and `Write`](traits/read-write.md)
- - [`Add`, `Mul`, ...](traits/operators.md)
- - [`Drop`](traits/drop.md)
+ - [Iterator](traits/iterator.md)
+ - [From and Into](traits/from-into.md)
+ - [Read and Write](traits/read-write.md)
+ - [Add, Mul, ...](traits/operators.md)
+ - [Drop](traits/drop.md)
- [Generics](generics.md)
- [Generic Data Types](generics/data-types.md)
- [Generic Methods](generics/methods.md)
- [Trait Bounds](generics/trait-bounds.md)
- - [`impl Trait`](generics/impl-trait.md)
+ - [impl Trait](generics/impl-trait.md)
- [Closures](generics/closures.md)
- [Monomorphization](generics/monomorphization.md)
- [Trait Objects](generics/trait-objects.md)
@@ -148,7 +148,7 @@
- [Panics](error-handling/panics.md)
- [Catching Stack Unwinding](error-handling/panic-unwind.md)
- [Structured Error Handling](error-handling/result.md)
- - [Propagating Errors with `?`](error-handling/try-operator.md)
+ - [Propagating Errors with ?](error-handling/try-operator.md)
- [Converting Error Types](error-handling/converting-error-types.md)
- [Deriving Error Enums](error-handling/deriving-error-enums.md)
- [Adding Context to Errors](error-handling/error-contexts.md)
@@ -179,12 +179,12 @@
- [Unbounded Channels](concurrency/channels/unbounded.md)
- [Bounded Channels](concurrency/channels/bounded.md)
- [Shared State](concurrency/shared_state.md)
- - [`Arc`](concurrency/shared_state/arc.md)
- - [`Mutex`](concurrency/shared_state/mutex.md)
+ - [Arc](concurrency/shared_state/arc.md)
+ - [Mutex](concurrency/shared_state/mutex.md)
- [Example](concurrency/shared_state/example.md)
- - [`Send` and `Sync`](concurrency/send-sync.md)
- - [`Send`](concurrency/send-sync/send.md)
- - [`Sync`](concurrency/send-sync/sync.md)
+ - [Send and Sync](concurrency/send-sync.md)
+ - [Send](concurrency/send-sync/send.md)
+ - [Sync](concurrency/send-sync/sync.md)
- [Examples](concurrency/send-sync/examples.md)
- [Exercises](exercises/day-4/morning.md)
- [Dining Philosophers](exercises/day-4/dining-philosophers.md)