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mikupad.html
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<!doctype html>
<meta charset="utf-8">
<!-- mikupad by Anon
--
-- To the extent possible under law, the person who associated CC0 with
-- mikupad has waived all copyright and related or neighboring rights
-- to mikupad.
--
-- You should have received a copy of the CC0 legalcode along with this
-- work. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-->
<title>mikupad</title>
<script type="importmap">
{
"imports": {
"react": "https://esm.sh/react@18",
"react-dom/client": "https://esm.sh/react-dom@18/client?external=react",
"htm/react": "https://esm.sh/htm@3/react?external=react&react=18",
"event-iterator": "https://esm.sh/[email protected]"
}
}
</script>
<style>
html {
--color-miku: #009bb3;
--color-base-0: oklch(0.20 0.02 60);
--color-base-10: color-mix(in oklch, var(--color-base-100) 10%, var(--color-base-0));
--color-base-20: color-mix(in oklch, var(--color-base-100) 20%, var(--color-base-0));
--color-base-30: color-mix(in oklch, var(--color-base-100) 30%, var(--color-base-0));
--color-base-40: color-mix(in oklch, var(--color-base-100) 40%, var(--color-base-0));
--color-base-50: color-mix(in oklch, var(--color-base-100) 50%, var(--color-base-0));
--color-base-60: color-mix(in oklch, var(--color-base-100) 60%, var(--color-base-0));
--color-base-70: color-mix(in oklch, var(--color-base-100) 70%, var(--color-base-0));
--color-base-80: color-mix(in oklch, var(--color-base-100) 80%, var(--color-base-0));
--color-base-90: color-mix(in oklch, var(--color-base-100) 90%, var(--color-base-0));
--color-base-100: oklch(0.95 0.04 70);
--color-dark: var(--color-base-0);
--color-light: var(--color-base-100);
font-family: serif;
font-size: 16px;
min-height: 100%;
display: flex;
flex-direction: column;
accent-color: var(--color-base-30);
background: var(--color-base-20);
color: var(--color-base-0);
}
html.dark-mode {
--color-base-0: oklch(0.95 0.04 30);
--color-base-10: color-mix(in oklch, var(--color-base-100) 10%, var(--color-base-0));
--color-base-20: color-mix(in oklch, var(--color-base-100) 80%, var(--color-base-0));
--color-base-30: color-mix(in oklch, var(--color-base-100) 70%, var(--color-base-0));
--color-base-40: color-mix(in oklch, var(--color-base-100) 60%, var(--color-base-0));
--color-base-50: color-mix(in oklch, var(--color-base-100) 50%, var(--color-base-0));
--color-base-60: color-mix(in oklch, var(--color-base-100) 40%, var(--color-base-0));
--color-base-70: color-mix(in oklch, var(--color-base-100) 30%, var(--color-base-0));
--color-base-80: color-mix(in oklch, var(--color-base-100) 20%, var(--color-base-0));
--color-base-90: color-mix(in oklch, var(--color-base-100) 10%, var(--color-base-0));
--color-base-100: oklch(0.20 0.02 30);
--color-dark: var(--color-base-100);
--color-light: var(--color-base-0);
}
body {
margin: 0;
display: flex;
flex: auto;
flex-direction: row;
}
#prompt-container {
position: relative;
font-size: 1.125rem;
max-width: 36em;
margin-right: auto;
margin-left: auto;
flex: 1;
display: flex;
flex-direction: column;
}
#prompt-area, #prompt-overlay {
flex: 1;
border: none;
outline: none;
resize: none;
background: var(--color-base-100);
color: var(--color-base-10);
padding: 2em 3em;
margin: 0;
scrollbar-gutter: stable;
font: inherit;
}
#prompt-overlay {
white-space: pre-wrap;
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
background: transparent;
color: transparent;
pointer-events: none;
overflow: auto;
}
#prompt-container:hover #prompt-overlay > .machine {
background: color-mix(in srgb, var(--color-miku) 10%, transparent);
}
#prompt-container #prompt-overlay > .machine.erase {
background: color-mix(in srgb, #FF0000 10%, transparent);
}
#prompt-container #prompt-overlay > .machine.current {
border-radius: 3px;
outline: 1px solid var(--color-base-50);
outline-offset: 1px;
}
#probs {
position: absolute;
background: var(--color-base-30);
top: var(--probs-top);
left: var(--probs-left);
display: flex;
transform: translate(-50%, -100%);
border-radius: 5px;
box-shadow: 0 1px 1px 1px #00000033;
/*transition: top 0.2s, left 0.2s;*/
}
#probs > button {
cursor: pointer;
background: transparent;
color: var(--color-light);
border-radius: 0;
padding: 2px 3px;
display: flex;
flex-direction: column;
flex: none;
font-size: 0.875rem;
}
#probs > button:first-child {
border-radius: 5px 0 0 5px;
padding-left: 6px;
}
#probs > button:last-child {
border-radius: 0 5px 5px 0;
padding-right: 6px;
}
#probs > button:hover {
background: var(--color-base-40);
}
#probs > button:active {
background: var(--color-base-50);
}
#probs > button > .prob {
font-size: 0.75rem;
}
#sidebar {
width: 250px;
background: var(--color-base-50);
color: var(--color-light);
padding: 4px 8px;
display: flex;
flex-direction: column;
gap: 4px;
overflow: auto;
}
.sidebar-hbox {
flex: none;
display: grid;
grid: auto / auto-flow minmax(min-content, 1fr);
gap: 8px;
}
.sidebar-vbox {
flex: none;
display: grid;
grid: auto / minmax(min-content, 1fr) auto-flow;
gap: 4px;
}
.InputBox, .SelectBox {
display: flex;
flex-direction: column;
font-size: 0.75rem;
padding: 0 8px;
}
.InputBox > input, .SelectBox > select {
appearance: none;
border: none;
outline: none;
width: 100%;
box-sizing: content-box;
font: inherit;
font-size: 1rem;
padding: 4px 8px;
margin: 0 -8px;
border-radius: 2px;
color: inherit;
background: var(--color-base-30);
flex: none;
}
.InputBox > input:read-only {
background: var(--color-base-60);
}
.InputBox > input:focus-visible {
outline: 1px solid var(--color-base-0);
}
.SelectBox > select:disabled {
background: var(--color-base-60);
}
.Checkbox {
margin: 0 5px 0 0;
vertical-align: middle;
}
.InputBox > input.mixed-content {
outline: 1px solid yellow;
}
.tooltip {
position: relative;
}
.tooltip .tooltiptext {
pointer-events: none;
width: 95%;
background-color: #000000AA;
color: var(--color-light);
text-align: center;
padding: 5px 4px;
margin: 0 -8px;
border-radius: 6px;
opacity: 0;
transition: opacity 0.3s;
position: absolute;
z-index: 1;
transform: translate(0, -75%);
}
.tooltip:hover .tooltiptext {
opacity: 1;
}
.error-text {
width: max-content;
text-align: center;
background: #4E3534;
border-radius: 4px;
color: #FF8080;
margin-left: auto;
margin-right: auto;
padding: 2px 10px;
}
button {
appearance: none;
border: none;
outline: none;
font: inherit;
padding: 4px 8px;
color: inherit;
background: var(--color-base-30);
border-radius: 2px;
}
button:hover {
background: var(--color-base-40);
}
button:active {
background: var(--color-base-50);
}
button:disabled {
background: var(--color-base-60);
}
button:focus-visible {
outline: 1px solid var(--color-base-0);
}
button.processing {
outline: 1px solid rgba(255, 255, 255, 0.5);
animation: .5s ease-out infinite alternate processing;
}
@keyframes processing {
from { outline-width: 0px; }
to { outline-width: 4px; }
}
button.completing {
outline: 1px solid limegreen;
animation: .5s ease-out infinite alternate completing;
}
@keyframes completing {
from { outline-width: 0px; }
to { outline-width: 4px; }
}
.buttons {
display: flex;
gap: 8px;
justify-content: center;
}
.buttons .shorts {
line-height: 0;
}
.buttons .shorts > button {
height: 100%;
}
</style>
<script type="module">
import { useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
import { createRoot } from 'react-dom/client';
import { html } from 'htm/react';
import { EventIterator } from 'event-iterator';
// Polyfill for piece of shit Chromium
if (!(Symbol.asyncIterator in ReadableStream.prototype)) {
ReadableStream.prototype[Symbol.asyncIterator] = async function* () {
const reader = this.getReader();
try {
for (;;) {
const { done, value } = await reader.read();
if (done)
return;
yield value;
}
} finally {
reader.releaseLock();
}
};
}
export async function getTokenCount({ endpoint, endpointAPI, signal, ...options }) {
switch (endpointAPI) {
case 0: // llama.cpp
return await llamaCppTokenCount({ endpoint, signal, ...options });
case 1: // oobabooga
return await oobaTokenCount({ endpoint, signal, ...options });
case 2: // koboldcpp
return await koboldCppTokenCount({ endpoint, signal, ...options });
}
}
export async function* completion({ endpoint, endpointAPI, signal, ...options }) {
if (options['seed'] === -1)
delete options['seed'];
switch (endpointAPI) {
case 0: // llama.cpp
return yield* await llamaCppCompletion({ endpoint, signal, ...options });
case 1: // oobabooga
return yield* await oobaCompletion({ endpoint, signal, ...options });
case 2: // koboldcpp
return yield* await koboldCppCompletion({ endpoint, signal, ...options });
}
}
export async function abortCompletion({ endpoint, endpointAPI }) {
switch (endpointAPI) {
case 1: // oobabooga
try {
return await oobaAbortCompletion({ endpoint });
} catch (e) {
reportError(e);
break; // do nothing.
}
case 2: // koboldcpp
return await koboldCppAbortCompletion({ endpoint });
}
}
// Function to parse text/event-stream data and yield JSON objects
async function* parseEventStream(eventStream) {
let buf = '';
let ignoreNextLf = false;
for await (let chunk of eventStream.pipeThrough(new TextDecoderStream())) {
// A CRLF could be split between chunks, so if the last chunk ended in
// CR and this chunk started with LF, trim the LF
if (ignoreNextLf && /^\n/.test(chunk)) {
chunk = chunk.slice(1);
}
ignoreNextLf = /\r$/.test(chunk);
// Event streams must be parsed line-by-line (ending in CR, LF, or CRLF)
const lines = (buf + chunk).split(/\n|\r\n?/);
buf = lines.pop();
let type, data;
for (const line of lines) {
if (!line) {
// We only emit message-type events for now (and assume JSON)
if (data && (type || 'message') === 'message') {
const json = JSON.parse(data);
// Both Chrome and Firefox suck at debugging
// text/event-stream, so make it easier by logging events
console.log('event', json);
yield json;
}
type = undefined;
data = undefined;
continue;
}
const { name, value } = /^(?<name>.*?)(?:: ?(?<value>.*))?$/s.exec(line).groups;
switch (name) {
case 'event':
type = (value ?? '');
break;
case 'data':
data = data === undefined ? (value ?? '') : `${data}\n${value}`;
break;
}
}
}
}
async function llamaCppTokenCount({ endpoint, signal, ...options }) {
const res = await fetch(new URL('/tokenize', endpoint), {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(options),
signal,
});
if (!res.ok)
throw new Error(`HTTP ${res.status}`);
const { tokens } = await res.json();
return tokens.length + 1; // + 1 for BOS, I guess.
}
async function* llamaCppCompletion({ endpoint, signal, ...options }) {
const res = await fetch(new URL('/completion', endpoint), {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
...options,
stream: true,
}),
signal,
});
if (!res.ok)
throw new Error(`HTTP ${res.status}`);
return yield* await parseEventStream(res.body);
}
async function oobaTokenCount({ endpoint, signal, ...options }) {
endpoint = `http:${endpoint.split(":")[1]}:5000`; // HACK!
const res = await fetch(new URL('/api/v1/token-count', endpoint), {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
prompt: options.content
}),
signal,
});
if (!res.ok)
throw new Error(`HTTP ${res.status}`);
const { results } = await res.json();
return results[0].tokens;
}
function oobaConvertOptions(options) {
const swapOption = (lhs, rhs) => {
if (lhs in options) {
options[rhs] = options[lhs];
delete options[lhs];
}
};
if (options.n_predict === -1) {
options.n_predict = 1024;
}
swapOption("n_ctx", "truncation_length");
swapOption("n_predict", "max_new_tokens");
swapOption("repeat_penalty", "repetition_penalty");
swapOption("repeat_last_n", "repetition_penalty_range");
swapOption("ignore_eos", "ban_eos_token");
swapOption("stop", "stopping_strings");
return options;
}
async function* oobaCompletion({ endpoint, signal, ...options }) {
const ws = new WebSocket(new URL('/api/v1/stream', endpoint));
let connected = false;
ws.onopen = () => {
connected = true;
ws.send(JSON.stringify(oobaConvertOptions(options)));
};
const wsStream = () => new EventIterator(
queue => {
ws.onmessage = queue.push;
ws.onclose = queue.stop;
ws.onerror = (e) => queue.fail(new Error(connected ? "WebSocket Error" : "Failed to connect"));
if (signal) {
signal.addEventListener("abort", queue.stop);
}
return () => {
ws.close();
if (signal) {
signal.removeEventListener("abort", queue.stop);
}
}
}
);
for await (const event of wsStream()) {
const data = JSON.parse(event.data);
console.log('event', data);
if (data.event === "text_stream") {
yield { content: data.text };
} else if (data.event === "stream_end") {
break;
}
}
}
async function oobaAbortCompletion({ endpoint }) {
endpoint = `http:${endpoint.split(":")[1]}:5000`; // HACK!
await fetch(new URL('/api/v1/stop-stream', endpoint), {
method: 'POST',
});
}
async function koboldCppTokenCount({ endpoint, signal, ...options }) {
const res = await fetch(new URL('/api/extra/tokencount', endpoint), {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
prompt: options.content
}),
signal,
});
if (!res.ok)
throw new Error(`HTTP ${res.status}`);
const { value } = await res.json();
return value;
}
function koboldCppConvertOptions(options) {
const swapOption = (lhs, rhs) => {
if (lhs in options) {
options[rhs] = options[lhs];
delete options[lhs];
}
};
if (options.n_predict === -1) {
options.n_predict = 1024;
}
swapOption("n_ctx", "max_context_length");
swapOption("n_predict", "max_length");
swapOption("repeat_penalty", "rep_pen");
swapOption("repeat_last_n", "rep_pen_range");
swapOption("tfs_z", "tfs");
swapOption("typical_p", "typical");
swapOption("seed", "sampler_seed");
swapOption("stop", "stop_sequence");
return options;
}
async function* koboldCppCompletion({ endpoint, signal, ...options }) {
const res = await fetch(new URL('/api/extra/generate/stream', endpoint), {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({
...koboldCppConvertOptions(options),
stream: true,
}),
signal,
});
if (!res.ok)
throw new Error(`HTTP ${res.status}`);
for await (const chunk of parseEventStream(res.body)) {
yield { content: chunk.token };
}
}
async function koboldCppAbortCompletion({ endpoint }) {
await fetch(new URL('/api/extra/abort', endpoint), {
method: 'POST',
});
}
function InputBox({ label, tooltip, value, type, onValueChange, ...props }) {
return html`
<label className="InputBox ${tooltip ? 'tooltip' : ''}">
${label}
<input
type=${type || 'text'}
value=${value}
size="1"
onChange=${({ target }) => {
let value = type === 'number' ? target.valueAsNumber : target.value;
if (props.inputmode === 'numeric') {
props.pattern = '^-?[0-9]*$';
if (value && !isNaN(+value))
value = +target.value;
}
if (props.pattern && !new RegExp(props.pattern).test(value))
return;
onValueChange(value);
}}
...${props}/>
${tooltip && html`
<span class="tooltiptext">
${tooltip}
</span>
`}
</label>`;
}
function SelectBox({ label, value, onValueChange, options, ...props }) {
return html`
<label className="SelectBox">
${label}
<select
value=${value}
onChange=${({ target }) => onValueChange(JSON.parse(target.value))}
...${props}>
${options.map(o => html`<option
key=${JSON.stringify(o.value)}
value=${JSON.stringify(o.value)}>${o.name}</option>`)}
</select>
</label>`;
}
function Checkbox({ label, value, onValueChange, ...props }) {
return html`
<label className="Checkbox">
<input
type="checkbox"
checked=${value}
onChange=${({ target }) => onValueChange(target.checked)}
...${props}/>
${label}
</label>`;
}
const defaultPrompt = `[INST] <<SYS>>
You are a talented writing assistant. Always respond by incorporating the instructions into expertly written prose that is highly detailed, evocative, vivid and engaging.
<</SYS>>
Write a story about Hatsune Miku and Kagamine Rin. [/INST] Sure, how about this:
Chapter 1
`;
function joinPrompt(prompt) {
return prompt.map(p => p.content).join('');
}
function replaceUnprintableBytes(inputString) {
// Define a regular expression to match unprintable bytes
const unprintableBytesRegex = /[\0-\x1F\x7F-\x9F\xAD\u0378\u0379\u037F-\u0383\u038B\u038D\u03A2\u0528-\u0530\u0557\u0558\u0560\u0588\u058B-\u058E\u0590\u05C8-\u05CF\u05EB-\u05EF\u05F5-\u0605\u061C\u061D\u06DD\u070E\u070F\u074B\u074C\u07B2-\u07BF\u07FB-\u07FF\u082E\u082F\u083F\u085C\u085D\u085F-\u089F\u08A1\u08AD-\u08E3\u08FF\u0978\u0980\u0984\u098D\u098E\u0991\u0992\u09A9\u09B1\u09B3-\u09B5\u09BA\u09BB\u09C5\u09C6\u09C9\u09CA\u09CF-\u09D6\u09D8-\u09DB\u09DE\u09E4\u09E5\u09FC-\u0A00\u0A04\u0A0B-\u0A0E\u0A11\u0A12\u0A29\u0A31\u0A34\u0A37\u0A3A\u0A3B\u0A3D\u0A43-\u0A46\u0A49\u0A4A\u0A4E-\u0A50\u0A52-\u0A58\u0A5D\u0A5F-\u0A65\u0A76-\u0A80\u0A84\u0A8E\u0A92\u0AA9\u0AB1\u0AB4\u0ABA\u0ABB\u0AC6\u0ACA\u0ACE\u0ACF\u0AD1-\u0ADF\u0AE4\u0AE5\u0AF2-\u0B00\u0B04\u0B0D\u0B0E\u0B11\u0B12\u0B29\u0B31\u0B34\u0B3A\u0B3B\u0B45\u0B46\u0B49\u0B4A\u0B4E-\u0B55\u0B58-\u0B5B\u0B5E\u0B64\u0B65\u0B78-\u0B81\u0B84\u0B8B-\u0B8D\u0B91\u0B96-\u0B98\u0B9B\u0B9D\u0BA0-\u0BA2\u0BA5-\u0BA7\u0BAB-\u0BAD\u0BBA-\u0BBD\u0BC3-\u0BC5\u0BC9\u0BCE\u0BCF\u0BD1-\u0BD6\u0BD8-\u0BE5\u0BFB-\u0C00\u0C04\u0C0D\u0C11\u0C29\u0C34\u0C3A-\u0C3C\u0C45\u0C49\u0C4E-\u0C54\u0C57\u0C5A-\u0C5F\u0C64\u0C65\u0C70-\u0C77\u0C80\u0C81\u0C84\u0C8D\u0C91\u0CA9\u0CB4\u0CBA\u0CBB\u0CC5\u0CC9\u0CCE-\u0CD4\u0CD7-\u0CDD\u0CDF\u0CE4\u0CE5\u0CF0\u0CF3-\u0D01\u0D04\u0D0D\u0D11\u0D3B\u0D3C\u0D45\u0D49\u0D4F-\u0D56\u0D58-\u0D5F\u0D64\u0D65\u0D76-\u0D78\u0D80\u0D81\u0D84\u0D97-\u0D99\u0DB2\u0DBC\u0DBE\u0DBF\u0DC7-\u0DC9\u0DCB-\u0DCE\u0DD5\u0DD7\u0DE0-\u0DF1\u0DF5-\u0E00\u0E3B-\u0E3E\u0E5C-\u0E80\u0E83\u0E85\u0E86\u0E89\u0E8B\u0E8C\u0E8E-\u0E93\u0E98\u0EA0\u0EA4\u0EA6\u0EA8\u0EA9\u0EAC\u0EBA\u0EBE\u0EBF\u0EC5\u0EC7\u0ECE\u0ECF\u0EDA\u0EDB\u0EE0-\u0EFF\u0F48\u0F6D-\u0F70\u0F98\u0FBD\u0FCD\u0FDB-\u0FFF\u10C6\u10C8-\u10CC\u10CE\u10CF\u1249\u124E\u124F\u1257\u1259\u125E\u125F\u1289\u128E\u128F\u12B1\u12B6\u12B7\u12BF\u12C1\u12C6\u12C7\u12D7\u1311\u1316\u1317\u135B\u135C\u137D-\u137F\u139A-\u139F\u13F5-\u13FF\u169D-\u169F\u16F1-\u16FF\u170D\u1715-\u171F\u1737-\u173F\u1754-\u175F\u176D\u1771\u1774-\u177F\u17DE\u17DF\u17EA-\u17EF\u17FA-\u17FF\u180F\u181A-\u181F\u1878-\u187F\u18AB-\u18AF\u18F6-\u18FF\u191D-\u191F\u192C-\u192F\u193C-\u193F\u1941-\u1943\u196E\u196F\u1975-\u197F\u19AC-\u19AF\u19CA-\u19CF\u19DB-\u19DD\u1A1C\u1A1D\u1A5F\u1A7D\u1A7E\u1A8A-\u1A8F\u1A9A-\u1A9F\u1AAE-\u1AFF\u1B4C-\u1B4F\u1B7D-\u1B7F\u1BF4-\u1BFB\u1C38-\u1C3A\u1C4A-\u1C4C\u1C80-\u1CBF\u1CC8-\u1CCF\u1CF7-\u1CFF\u1DE7-\u1DFB\u1F16\u1F17\u1F1E\u1F1F\u1F46\u1F47\u1F4E\u1F4F\u1F58\u1F5A\u1F5C\u1F5E\u1F7E\u1F7F\u1FB5\u1FC5\u1FD4\u1FD5\u1FDC\u1FF0\u1FF1\u1FF5\u1FFF\u200B-\u200F\u202A-\u202E\u2060-\u206F\u2072\u2073\u208F\u209D-\u209F\u20BB-\u20CF\u20F1-\u20FF\u218A-\u218F\u23F4-\u23FF\u2427-\u243F\u244B-\u245F\u2700\u2B4D-\u2B4F\u2B5A-\u2BFF\u2C2F\u2C5F\u2CF4-\u2CF8\u2D26\u2D28-\u2D2C\u2D2E\u2D2F\u2D68-\u2D6E\u2D71-\u2D7E\u2D97-\u2D9F\u2DA7\u2DAF\u2DB7\u2DBF\u2DC7\u2DCF\u2DD7\u2DDF\u2E3C-\u2E7F\u2E9A\u2EF4-\u2EFF\u2FD6-\u2FEF\u2FFC-\u2FFF\u3040\u3097\u3098\u3100-\u3104\u312E-\u3130\u318F\u31BB-\u31BF\u31E4-\u31EF\u321F\u32FF\u4DB6-\u4DBF\u9FCD-\u9FFF\uA48D-\uA48F\uA4C7-\uA4CF\uA62C-\uA63F\uA698-\uA69E\uA6F8-\uA6FF\uA78F\uA794-\uA79F\uA7AB-\uA7F7\uA82C-\uA82F\uA83A-\uA83F\uA878-\uA87F\uA8C5-\uA8CD\uA8DA-\uA8DF\uA8FC-\uA8FF\uA954-\uA95E\uA97D-\uA97F\uA9CE\uA9DA-\uA9DD\uA9E0-\uA9FF\uAA37-\uAA3F\uAA4E\uAA4F\uAA5A\uAA5B\uAA7C-\uAA7F\uAAC3-\uAADA\uAAF7-\uAB00\uAB07\uAB08\uAB0F\uAB10\uAB17-\uAB1F\uAB27\uAB2F-\uABBF\uABEE\uABEF\uABFA-\uABFF\uD7A4-\uD7AF\uD7C7-\uD7CA\uD7FC-\uF8FF\uFA6E\uFA6F\uFADA-\uFAFF\uFB07-\uFB12\uFB18-\uFB1C\uFB37\uFB3D\uFB3F\uFB42\uFB45\uFBC2-\uFBD2\uFD40-\uFD4F\uFD90\uFD91\uFDC8-\uFDEF\uFDFE\uFDFF\uFE1A-\uFE1F\uFE27-\uFE2F\uFE53\uFE67\uFE6C-\uFE6F\uFE75\uFEFD-\uFF00\uFFBF-\uFFC1\uFFC8\uFFC9\uFFD0\uFFD1\uFFD8\uFFD9\uFFDD-\uFFDF\uFFE7\uFFEF-\uFFFB\uFFFE\uFFFF]/g;
// Replace unprintable bytes with their character codes
const replacedString = inputString.replace(unprintableBytesRegex, (match) => {
const charCode = match.charCodeAt(0);
return `<0x${charCode.toString(16).toUpperCase().padStart(2, '0')}>`;
});
return replacedString;
}
function usePersistentState(name, initialState) {
let savedState;
try {
savedState = useMemo(() => JSON.parse(localStorage.getItem(name)), []);
} catch (e) {
reportError(e);
savedState = null;
}
const [value, setValue] = useState(savedState == null ? initialState : savedState);
return [value, (newValue) => {
if (typeof newValue === 'function') {
setValue(v => {
newValue = newValue(v);
localStorage.setItem(name, JSON.stringify(newValue));
return newValue;
});
} else {
localStorage.setItem(name, JSON.stringify(newValue));
setValue(newValue);
}
}]
}
function resetPersistence() {
if (!window.confirm("Are you sure you want to reset all the presets and the prompt? This action can't be undone."))
return;
localStorage.clear();
location.reload();
}
function exportPersistence() {
var element = document.createElement('a');
element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(JSON.stringify(localStorage)));
element.setAttribute('download', `mikupad_session.json`);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
function importPersistence() {
const fileInput = document.createElement("input");
fileInput.type = 'file';
fileInput.style.display = 'none';
fileInput.onchange = (e) => {
const file = e.target.files[0];
if (!file)
return;
const reader = new FileReader();
reader.onload = (e) => {
const contents = e.target.result;
fileInput.func(contents);
}
reader.readAsText(file);
};
fileInput.func = (text) => {
const data = JSON.parse(text);
Object.keys(data).forEach((k) => {
localStorage.setItem(k, data[k]);
});
location.reload();
};
document.body.appendChild(fileInput);
fileInput.click();
document.body.removeChild(fileInput);
}
export function App() {
const promptArea = useRef();
const promptOverlay = useRef();
const undoStack = useRef([]);
const redoStack = useRef([]);
const probsDelayTimer = useRef();
const [currentPromptChunk, setCurrentPromptChunk] = useState(undefined);
const [undoHovered, setUndoHovered] = useState(false);
const [showProbs, setShowProbs] = useState(true);
const [cancel, setCancel] = useState(null);
const [darkMode, setDarkMode] = usePersistentState('darkMode', false);
const [endpoint, setEndpoint] = usePersistentState('endpoint', 'http://localhost:8080');
const [endpointAPI, setEndpointAPI] = usePersistentState('endpointAPI', 0);
const [promptChunks, setPromptChunks] = usePersistentState('prompt', [{ type: 'user', content: defaultPrompt }]);
const [seed, setSeed] = usePersistentState('seed', -1);
const [maxPredictTokens, setMaxPredictTokens] = usePersistentState('maxPredictTokens', -1);
const [temperature, setTemperature] = usePersistentState('temperature', 0.7); // llama.cpp default 0.8
const [repeatPenalty, setRepeatPenalty] = usePersistentState('repeatPenalty', 1.1);
const [repeatLastN, setRepeatLastN] = usePersistentState('repeatLastN', 256); // llama.cpp default 64
const [penalizeNl, setPenalizeNl] = usePersistentState('penalizeNl', true);
const [presencePenalty, setPresencePenalty] = usePersistentState('presencePenalty', 0);
const [frequencyPenalty, setFrequencyPenalty] = usePersistentState('frequencyPenalty', 0);
const [topK, setTopK] = usePersistentState('topK', 40);
const [topP, setTopP] = usePersistentState('topP', 0.95);
const [typicalP, setTypicalP] = usePersistentState('typicalP', 1);
const [tfsZ, setTfsZ] = usePersistentState('tfsZ', 1);
const [mirostat, setMirostat] = usePersistentState('mirostat', 2); // llama.cpp default 0
const [mirostatTau, setMirostatTau] = usePersistentState('mirostatTau', 5.0);
const [mirostatEta, setMirostatEta] = usePersistentState('mirostatEta', 0.1);
const [ignoreEos, setIgnoreEos] = usePersistentState('ignoreEos', false);
const [tokens, setTokens] = useState(0);
const [predictStartTokens, setPredictStartTokens] = useState(0);
const [lastError, setLastError] = useState(undefined);
const promptText = useMemo(() => joinPrompt(promptChunks), [promptChunks]);
// Update dark mode on the first render.
useMemo(() => !darkMode || switchDarkMode(darkMode, true), []);
async function predict(prompt = promptText, chunkCount = promptChunks.length) {
if (cancel) {
cancel?.();
// llama.cpp server sometimes generates gibberish if we stop and
// restart right away (???)
let cancelled = false;
setCancel(() => () => cancelled = true);
await new Promise(resolve => setTimeout(resolve, 500));
if (cancelled)
return;
}
const ac = new AbortController();
const cancelThis = () => {
abortCompletion({ endpoint, endpointAPI });
ac.abort();
};
setCancel(() => cancelThis);
setLastError(undefined);
let predictedChunkCount = 0;
try {
// sometimes "getTokenCount" can take a while because the server is busy
// so let's set the predictStartTokens beforehand.
setPredictStartTokens(tokens);
const tokenCount = await getTokenCount({
endpoint,
endpointAPI,
content: ` ${prompt}`,
signal: ac.signal,
});
setTokens(tokenCount);
setPredictStartTokens(tokenCount);
while (undoStack.current.at(-1) >= chunkCount)
undoStack.current.pop();
undoStack.current.push(chunkCount);
redoStack.current = [];
setUndoHovered(false);
for await (const chunk of completion({
endpoint,
endpointAPI,
prompt,
seed,
temperature,
repeat_penalty: repeatPenalty,
repeat_last_n: repeatLastN,
penalize_nl: penalizeNl,
presence_penalty: presencePenalty,
frequency_penalty: frequencyPenalty,
mirostat,
...(mirostat ? {
mirostat_tau: mirostatTau,
mirostat_eta: mirostatEta,
} : {
top_k: topK,
top_p: topP,
typical_p: typicalP,
tfs_z: tfsZ,
}),
ignore_eos: ignoreEos,
n_predict: maxPredictTokens,
n_probs: 10,
signal: ac.signal,
})) {
ac.signal.throwIfAborted();
if (!chunk.content)
continue;
setPromptChunks(p => [...p, chunk]);
setTokens(t => t + (chunk?.completion_probabilities?.length ?? 1));
chunkCount += 1;
}
} catch (e) {
if (e.name !== 'AbortError') {
reportError(e);
setLastError(e.toString());
}
return false;
} finally {
setCancel(c => c === cancelThis ? null : c);
if (undoStack.current.at(-1) === chunkCount)
undoStack.current.pop();
}
}
function undo() {
if (!undoStack.current.length)
return;
redoStack.current.push(promptChunks.slice(undoStack.current.at(-1)));
setPromptChunks(p => p.slice(0, undoStack.current.pop()));
}
function redo() {
if (!redoStack.current.length)
return;
undoStack.current.push(promptChunks.length);
setPromptChunks(p => [...p, ...redoStack.current.pop()]);
setUndoHovered(false);
}
useEffect(() => {
const adjustProbsPosition = () => {
const probsElement = document.getElementById('probs');
if (!probsElement) return;
probsElement.style.display = '';
probsElement.style.setProperty('--probs-top', `${currentPromptChunk.top}px`);
probsElement.style.setProperty('--probs-left', `${currentPromptChunk.left}px`);
const probsRect = probsElement.getBoundingClientRect();
const viewportWidth = window.innerWidth || document.documentElement.clientWidth;
const viewportHeight = window.innerHeight || document.documentElement.clientHeight;
// Adjust left position if element goes off-screen on the right
if (probsRect.right > viewportWidth) {
const newLeft = viewportWidth - probsRect.width / 2;
probsElement.style.setProperty('--probs-left', `${newLeft}px`);
}
// Adjust right position if element goes off-screen on the left
if (probsRect.left < 0) {
probsElement.style.setProperty('--probs-left', `${probsRect.width / 2}px`);
}
};
if (currentPromptChunk && showProbs) {
setTimeout(() => {
adjustProbsPosition();
});
}
}, [currentPromptChunk, showProbs]);
// Update the textarea in an uncontrolled way so the user doesn't lose their
// selection or cursor position during prediction
useEffect(() => {
const elem = promptArea.current;
if (elem.value === promptText) {
return;
} else if (promptText.startsWith(elem.value)) {
const oldHeight = elem.scrollHeight;
const atBottom = (elem.scrollTarget ?? elem.scrollTop) + elem.clientHeight + 1 > oldHeight;
const oldLen = elem.value.length;
elem.setRangeText(promptText.slice(oldLen), oldLen, oldLen, 'preserve');
const newHeight = elem.scrollHeight;
if (atBottom && oldHeight !== newHeight) {
elem.scrollTarget = newHeight - elem.clientHeight;
elem.scrollTo({
top: newHeight - elem.clientHeight,
behavior: 'smooth',
});
}
} else {
elem.value = promptText;
}
}, [promptText]);
useEffect(() => {
if (cancel)
return;
const ac = new AbortController();
const to = setTimeout(async () => {
try {
const tokenCount = await getTokenCount({
endpoint,
endpointAPI,
content: ` ${promptText}`,
signal: ac.signal,
});
setTokens(tokenCount);
} catch (e) {
if (e.name !== 'AbortError')
reportError(e);
}
}, 500);
ac.signal.addEventListener('abort', () => clearTimeout(to));
return () => ac.abort();
}, [promptText, cancel, endpoint, endpointAPI]);
useEffect(() => {
function onKeyDown(e) {
const { altKey, ctrlKey, shiftKey, key, defaultPrevented } = e;
if (defaultPrevented)
return;
switch (`${altKey}:${ctrlKey}:${shiftKey}:${key}`) {
case 'false:false:true:Enter':
case 'false:true:false:Enter':
predict();
break;
case 'false:false:false:Escape':
cancel();
break;
default:
return;
}
e.preventDefault();
}
window.addEventListener('keydown', onKeyDown);
return () => window.removeEventListener('keydown', onKeyDown);
}, [predict, cancel]);
function onInput({ target }) {
setPromptChunks(oldPrompt => {
const start = [];
const end = [];
const oldPromptLength = oldPrompt.length;
oldPrompt = [...oldPrompt];
let newValue = target.value;
while (oldPrompt.length) {
const chunk = oldPrompt[0];
if (!newValue.startsWith(chunk.content))