this project loosely implements the Web Browser Engineering book in rust.
- enter key does not work in location bar yet, so click “go” or press tab-enter or tab-space
- no arrow keys or page up/down keys yet, so use the mouse wheel or similar to scroll
- redirects currently panic! (redirects are common for http → https and trailing slashes)
nix-shell --run 'cargo fmt && cargo run --release -- https://browser.engineering'- build environment vars
- WBE_FONT_PATH (required) = path to your default font
- WBE_FONT_PATH_B (required) = path to that font in bold
- WBE_FONT_PATH_I (required) = path to that font in italic
- WBE_FONT_PATH_BI (required) = path to that font in bold italic
- WBE_TIMING_MODE (optional) = if present, quit after first layout
- WBE_DEBUG_RWLOCK (optional) = if present, print backtraces of RwLock acquisitions
- runtime environment vars
- RUST_BACKTRACE (optional) = set to 1 or full to print backtraces of panics
- RUST_LOG (optional) = configure logging in tracing_subscriber::EnvFilter
- e.g. RUST_LOG=info,wbe=debug,wbe::layout=trace
- WINIT_X11_SCALE_FACTOR (optional) = set the ratio of real pixels to css px
- location bar with double buffering
- async load/parse/layout
- incremental load/parse/layout
- html parser
- correct handling of end-tag-with-attributes error
- correct handling of end-tag-with-trailing-solidus error
- text inside <style> is RAWTEXT
- text inside <script> is RAWTEXT (technically should be its own unique thing for <!--)
- implicit </p> when opening any tag in (p, table, form, h1, h2, h3, h4, h5, h6)
- implicit </li> when opening <li>
- implicit </dt> when opening any tag in (dt, dd)
- implicit </dd> when opening any tag in (dt, dd)
- implicit </tr> when opening <tr>
- implicit </td></tr> when opening <tr>
- implicit </th></tr> when opening <tr>
- implicit </td> when opening any tag in (td, th)
- implicit </th> when opening any tag in (td, th)
- layout
- simultaneous wrapping of english and chinese via uax #29
- chapter 1, downloading web pages
- exercise: http/1.1 and user-agent
- exercise: file url scheme
- exercise: data url scheme
-
exercise: body tag filter - exercise: entities
- exercise: view-source
- exercise: compression
- exercise: redirects
- exercise: caching
- chapter 2, drawing to the screen
-
exercise: line breaks - exercise: mouse wheel
- exercise: emoji
- exercise: resizing
- exercise: zoom
-
- chapter 3, formatting text
- word by word
- styling text
- text of different sizes
- exercise: centered text
- exercise: superscripts
- exercise: soft hyphens
- exercise: small caps
- exercise: preformatted text
- chapter 4, constructing a document tree
- handling author errors (implicit <html/head/body>)
- exercise: comments
- exercise: paragraphs
- exercise: scripts
- exercise: quoted attributes
- exercise: syntax highlighting
- chapter 5, laying out pages
- backgrounds
- exercise: links bar (hardcoded nav.links style)
- exercise: hidden head
- exercise: bullets
- exercise: scrollbar
- exercise: table of contents (hardcoded nav#toc style)
- exercise: anonymous block boxes
- exercise: run-ins (presentational hints for h6)
- chapter 6: applying user styles
- the style attribute
- applying style sheets
- <link rel=stylesheet>
- cascading
- inherited styles
- exercise: fonts
- exercise: width
- exercise: height
- exercise: class selectors
- exercise: display
- exercise: shorthand properties
- exercise: fast descendant selectors
- exercise: selector sequences (compound selectors)
- exercise: important
- exercise: ancestor selectors
- exercise: inline style sheets