Files
jason.woltje 9353675d1c webui: a WYSIWYG Markdown editor in the Console docs view, built from reviewable source (row 154, Q168, #1648)
Jason's Q168: a visual editor for the Console's project documents,
held to row 148's rendering rules.

Library. ProseMirror with prosemirror-markdown and markdown-it, chosen
in the phase 1 library report (LIBRARY.md, REPORT.md in the packet).
packages/webui/third_party/editor/ holds 19 upstream packages as source,
byte for byte, each with its license, plus NOTICE and PROVENANCE.json.

Build. packages/webui/editor/ holds the model, view, entry and
build.mjs. esbuild 0.28.2 is an exact devDependency of packages/webui
with its own lock; editor/toolchain.mjs checks the version and the
binary's sha256 before any build. MOSAIC_REQUIRE_EDITOR_BUILD=1 turns a
missing or different esbuild into a failure, and the rebuild test then
checks the committed src/public/editor.js and editor.css match a fresh
build. The built bundle is committed under Mos's conditions
(mos-0755, mos-0765).

Console. The docs view gets Visual and Source modes. A save still
writes Markdown through the existing project write path, with the same
stale-base and read-only handling. A mode switch reuses the draft and
reads nothing from the project. Links and images keep row 148's
target rules, and no raw HTML runs. serve.mjs serves /editor.js and
/editor.css; index.html loads them.

Owner Researcher, brief docs/plans/2026-10-16_q168-wysiwyg-editor.md.
Round 5 is a rebase onto d88613bac (row 155); only docs/TOOLS.md,
webui/README.md, public/bus.js and serve.mjs differ from the round
before. Reviewers on candidate manifest 3a4bc21c...3b05: Dewey
(security) approve 29027, Filbert approve 29026. Mos's decision 123 go
for public.diff 902f0244 (handwritten part ea59079e): mos-0824. Sage gate
on 72c3fa598 with MOSAIC_REQUIRE_EDITOR_BUILD=1: GATE_PASSED 25/25
(node 2397, selftests 422), 22:07:29Z to 22:13:50Z; the rebuild test
ran and passed.

Nothing live.
2026-10-18 17:14:39 -05:00

113 lines
2.8 KiB
JavaScript

/* eslint-disable no-bitwise */
const decodeCache = {}
function getDecodeCache (exclude) {
let cache = decodeCache[exclude]
if (cache) { return cache }
cache = decodeCache[exclude] = []
for (let i = 0; i < 128; i++) {
const ch = String.fromCharCode(i)
cache.push(ch)
}
for (let i = 0; i < exclude.length; i++) {
const ch = exclude.charCodeAt(i)
cache[ch] = '%' + ('0' + ch.toString(16).toUpperCase()).slice(-2)
}
return cache
}
// Decode percent-encoded string.
//
function decode (string, exclude) {
if (typeof exclude !== 'string') {
exclude = decode.defaultChars
}
const cache = getDecodeCache(exclude)
return string.replace(/(%[a-f0-9]{2})+/gi, function (seq) {
let result = ''
for (let i = 0, l = seq.length; i < l; i += 3) {
const b1 = parseInt(seq.slice(i + 1, i + 3), 16)
if (b1 < 0x80) {
result += cache[b1]
continue
}
if ((b1 & 0xE0) === 0xC0 && (i + 3 < l)) {
// 110xxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16)
if ((b2 & 0xC0) === 0x80) {
const chr = ((b1 << 6) & 0x7C0) | (b2 & 0x3F)
if (chr < 0x80) {
result += '\ufffd\ufffd'
} else {
result += String.fromCharCode(chr)
}
i += 3
continue
}
}
if ((b1 & 0xF0) === 0xE0 && (i + 6 < l)) {
// 1110xxxx 10xxxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16)
const b3 = parseInt(seq.slice(i + 7, i + 9), 16)
if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
const chr = ((b1 << 12) & 0xF000) | ((b2 << 6) & 0xFC0) | (b3 & 0x3F)
if (chr < 0x800 || (chr >= 0xD800 && chr <= 0xDFFF)) {
result += '\ufffd\ufffd\ufffd'
} else {
result += String.fromCharCode(chr)
}
i += 6
continue
}
}
if ((b1 & 0xF8) === 0xF0 && (i + 9 < l)) {
// 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16)
const b3 = parseInt(seq.slice(i + 7, i + 9), 16)
const b4 = parseInt(seq.slice(i + 10, i + 12), 16)
if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80 && (b4 & 0xC0) === 0x80) {
let chr = ((b1 << 18) & 0x1C0000) | ((b2 << 12) & 0x3F000) | ((b3 << 6) & 0xFC0) | (b4 & 0x3F)
if (chr < 0x10000 || chr > 0x10FFFF) {
result += '\ufffd\ufffd\ufffd\ufffd'
} else {
chr -= 0x10000
result += String.fromCharCode(0xD800 + (chr >> 10), 0xDC00 + (chr & 0x3FF))
}
i += 9
continue
}
}
result += '\ufffd'
}
return result
})
}
decode.defaultChars = ';/?:@&=+$,#'
decode.componentChars = ''
export default decode