utsikt

utsikt reads an html file off jakel, parses it into a tree, applies a subset of css, lays the result out and paints it into a window. it is an ordinary ring-3 program in a kakel tavla, started with start utsikt.elf, and it draws every pixel itself.

there is no networking, by decision. verk, the network stack, is the last subsystem moonshot will get. until then a page is a file.

html

the parser is forgiving. unclosed paragraphs, stray end tags and unknown elements still give a page rather than nothing. headings, paragraphs, lists, tables, pre, links, images and the common inline elements all have a default style.

css

colours, backgrounds, text size and weight, alignment, block and inline, margins and padding. selectors are a type (p), a class (.lead), both (p.lead), comma-separated lists of those, and a descendant selector of two (.note code). specificity counts the way css counts it, and vertical margins collapse. a selector utsikt cannot represent is dropped whole rather than applied in part.

layout

a line breaks only where a space was, so a word in bold followed by a full stop stays together. a table is a grid of equal-width columns. an image is a sprite in the format pensel saves, placed in the line like a word. text is set in the kernel's own font, so a page and the shell beside it look the same.

links

a click on a link loads the file it names, resolved from the root, and Backspace goes back. a link to another host is left alone. a strip along the bottom of the window says which file is open. a page's memory is given back to lager when the next one has loaded, so following links costs nothing that stays.

scripts

utsikt will not run javascript. it has an interface instead, where a scripting engine registers the <script type> it runs and reaches the page only through a small set of calls. the engine moonshot uses is glimt.

its own repository

utsikt is developed in github.com/cofflang/utsikt, and moonshot carries a copy of it in programs/utsikt/. contributions go to utsikt.