server : implement json-schema-to-grammar.mjs & add grammar param in the UI (#2588)
* server : implement json-schema-to-grammar.mjs by follow python impl * server : add grammar support in chat.mjs * server : implement grammer param in the UI * server : generate .hpp * server : remove trailing whitespaces * server : generate .hpp * server : fix sort of prop pairs * server : optimize regex & iteration
This commit is contained in:
Jhen-Jie Hong authored and GitHub committed
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+3208
-2593
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@@ -1,5 +1,34 @@
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import * as readline from 'node:readline'
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import { stdin, stdout } from 'node:process'
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import { readFileSync } from 'node:fs'
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import { SchemaConverter } from './public/json-schema-to-grammar.mjs'
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const args = process.argv.slice(2);
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const grammarJsonSchemaFile = args.find(
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(_, index) => args[index - 1] === "--grammar-json-schema"
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);
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const grammarFile = args.find((_, index) => args[index - 1] === "--grammar");
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// Example usage: function,arguments
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const grammarJsonSchemaPropOrder = args.find(
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(_, index) => args[index - 1] === "--grammar-json-schema-prop-order"
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);
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const propOrder = grammarJsonSchemaPropOrder
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? grammarJsonSchemaPropOrder
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.split(",")
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.reduce((acc, cur, index) => ({ ...acc, [cur]: index }), {})
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: {};
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let grammar = null
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if (grammarJsonSchemaFile) {
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const schema = JSON.parse(readFileSync(grammarJsonSchemaFile, 'utf-8'))
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const converter = new SchemaConverter(propOrder)
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converter.visit(schema, '')
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grammar = converter.formatGrammar()
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}
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if (grammarFile) {
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grammar = readFileSync(grammarFile, 'utf-8')
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}
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const API_URL = 'http://127.0.0.1:8080'
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@@ -48,6 +77,7 @@ async function chat_completion(question) {
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n_keep: n_keep,
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n_predict: 256,
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stop: ["\n### Human:"], // stop completion after generating this
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grammar,
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stream: true,
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})
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})
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@@ -0,0 +1,311 @@
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unsigned char json_schema_to_grammar_mjs[] = {
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};
|
||||
unsigned int json_schema_to_grammar_mjs_len = 3695;
|
||||
@@ -141,6 +141,7 @@
|
||||
} from '/index.js';
|
||||
|
||||
import { llama } from '/completion.js';
|
||||
import { SchemaConverter } from '/json-schema-to-grammar.mjs';
|
||||
|
||||
const session = signal({
|
||||
prompt: "This is a conversation between user and llama, a friendly chatbot. respond in simple markdown.",
|
||||
@@ -166,6 +167,7 @@
|
||||
mirostat: 0, // 0/1/2
|
||||
mirostat_tau: 5, // target entropy
|
||||
mirostat_eta: 0.1, // learning rate
|
||||
grammar: null,
|
||||
})
|
||||
|
||||
const llamaStats = signal(null)
|
||||
@@ -304,6 +306,26 @@
|
||||
const updateParamsFloat = (el) => params.value = { ...params.value, [el.target.name]: parseFloat(el.target.value) }
|
||||
const updateParamsInt = (el) => params.value = { ...params.value, [el.target.name]: Math.floor(parseFloat(el.target.value)) }
|
||||
|
||||
const grammarJsonSchemaPropOrder = signal('')
|
||||
const updateGrammarJsonSchemaPropOrder = (el) => grammarJsonSchemaPropOrder.value = el.target.value
|
||||
const convertJSONSchemaGrammar = () => {
|
||||
try {
|
||||
const schema = JSON.parse(params.value.grammar)
|
||||
const converter = new SchemaConverter(
|
||||
grammarJsonSchemaPropOrder.value
|
||||
.split(',')
|
||||
.reduce((acc, cur, i) => ({...acc, [cur.trim()]: i}), {})
|
||||
)
|
||||
converter.visit(schema, '')
|
||||
params.value = {
|
||||
...params.value,
|
||||
grammar: converter.formatGrammar(),
|
||||
}
|
||||
} catch (e) {
|
||||
alert(`Convert failed: ${e.message}`)
|
||||
}
|
||||
}
|
||||
|
||||
const FloatField = ({label, max, min, name, step, value}) => {
|
||||
return html`
|
||||
<div>
|
||||
@@ -355,6 +377,13 @@
|
||||
<label for="template">Chat history template</label>
|
||||
<textarea id="template" name="historyTemplate" value="${session.value.historyTemplate}" rows=1 oninput=${updateSession}/>
|
||||
</div>
|
||||
|
||||
<div>
|
||||
<label for="template">Grammar</label>
|
||||
<textarea id="grammar" name="grammar" placeholder="Use gbnf or JSON Schema+convert" value="${params.value.grammar}" rows=4 oninput=${updateParams}/>
|
||||
<input type="text" name="prop-order" placeholder="order: prop1,prop2,prop3" oninput=${updateGrammarJsonSchemaPropOrder} />
|
||||
<button type="button" onclick=${convertJSONSchemaGrammar}>Convert JSON Schema</button>
|
||||
</div>
|
||||
</fieldset>
|
||||
|
||||
<fieldset class="two">
|
||||
|
||||
@@ -1 +1 @@
|
||||
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0===n.n){t.s=n;break}}}function d(t){let n,e=t.s;while(void 0!==e){const t=e.p;if(-1===e.i){e.S.U(e);if(void 0!==t)t.n=e.n;if(void 0!==e.n)e.n.p=t}else n=e;e.S.n=e.r;if(void 0!==e.r)e.r=void 0;e=t}t.s=n}function v(t){c.call(this,void 0);this.x=t;this.s=void 0;this.g=l-1;this.f=4}(v.prototype=new c).h=function(){this.f&=-3;if(1&this.f)return!1;if(32==(36&this.f))return!0;this.f&=-5;if(this.g===l)return!0;this.g=l;this.f|=1;if(this.i>0&&!a(this)){this.f&=-2;return!0}const t=i;try{p(this);i=this;const t=this.x();if(16&this.f||this.v!==t||0===this.i){this.v=t;this.f&=-17;this.i++}}catch(t){this.v=t;this.f|=16;this.i++}i=t;d(this);this.f&=-2;return!0};v.prototype.S=function(t){if(void 0===this.t){this.f|=36;for(let t=this.s;void 0!==t;t=t.n)t.S.S(t)}c.prototype.S.call(this,t)};v.prototype.U=function(t){if(void 0!==this.t){c.prototype.U.call(this,t);if(void 0===this.t){this.f&=-33;for(let t=this.s;void 0!==t;t=t.n)t.S.U(t)}}};v.prototype.N=function(){if(!(2&this.f)){this.f|=6;for(let 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b.bind(this,n)};k.prototype.N=function(){if(!(2&this.f)){this.f|=2;this.o=_;_=this}};k.prototype.d=function(){this.f|=8;if(!(1&this.f))g(this)};function S(t){const n=new k(t);try{n.c()}catch(t){n.d();throw t}return n.d.bind(n)}var x,w,C,E,U,H,N,P,$,D={},T=[],V=/acit|ex(?:s|g|n|p|$)|rph|grid|ows|mnc|ntw|ine[ch]|zoo|^ord|itera/i,A=Array.isArray;function F(t,n){for(var e in n)t[e]=n[e];return t}function M(t){var n=t.parentNode;n&&n.removeChild(t)}function W(t,n,e){var i,_,o,r={};for(o in n)"key"==o?i=n[o]:"ref"==o?_=n[o]:r[o]=n[o];if(arguments.length>2&&(r.children=arguments.length>3?x.call(arguments,2):e),"function"==typeof t&&null!=t.defaultProps)for(o in t.defaultProps)void 0===r[o]&&(r[o]=t.defaultProps[o]);return O(t,r,i,_,null)}function O(t,n,e,i,_){var o={type:t,props:n,key:e,ref:i,__k:null,__:null,__b:0,__e:null,__d:void 0,__c:null,__h:null,constructor:void 0,__v:null==_?++C:_};return null==_&&null!=w.vnode&&w.vnode(o),o}function L(){return{current:null}}function R(t){return t.children}function I(t,n){this.props=t,thiLine truncated
|
||||
@@ -0,0 +1,112 @@
|
||||
const SPACE_RULE = '" "?';
|
||||
|
||||
const PRIMITIVE_RULES = {
|
||||
boolean: '("true" | "false") space',
|
||||
number: '("-"? ([0-9] | [1-9] [0-9]*)) ("." [0-9]+)? ([eE] [-+]? [0-9]+)? space',
|
||||
integer: '("-"? ([0-9] | [1-9] [0-9]*)) space',
|
||||
string: ` "\\"" (
|
||||
[^"\\\\] |
|
||||
"\\\\" (["\\\\/bfnrt] | "u" [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F])
|
||||
)* "\\"" space`,
|
||||
null: '"null" space',
|
||||
};
|
||||
|
||||
const INVALID_RULE_CHARS_RE = /[^\dA-Za-z-]+/g;
|
||||
const GRAMMAR_LITERAL_ESCAPE_RE = /[\n\r"]/g;
|
||||
const GRAMMAR_LITERAL_ESCAPES = {'\r': '\\r', '\n': '\\n', '"': '\\"'};
|
||||
|
||||
export class SchemaConverter {
|
||||
constructor(propOrder) {
|
||||
this._propOrder = propOrder || {};
|
||||
this._rules = new Map();
|
||||
this._rules.set('space', SPACE_RULE);
|
||||
}
|
||||
|
||||
_formatLiteral(literal) {
|
||||
const escaped = JSON.stringify(literal).replace(
|
||||
GRAMMAR_LITERAL_ESCAPE_RE,
|
||||
m => GRAMMAR_LITERAL_ESCAPES[m]
|
||||
);
|
||||
return `"${escaped}"`;
|
||||
}
|
||||
|
||||
_addRule(name, rule) {
|
||||
let escName = name.replace(INVALID_RULE_CHARS_RE, '-');
|
||||
let key = escName;
|
||||
|
||||
if (this._rules.has(escName)) {
|
||||
if (this._rules.get(escName) === rule) {
|
||||
return key;
|
||||
}
|
||||
|
||||
let i = 0;
|
||||
while (this._rules.has(`${escName}${i}`)) {
|
||||
i += 1;
|
||||
}
|
||||
key = `${escName}${i}`;
|
||||
}
|
||||
|
||||
this._rules.set(key, rule);
|
||||
return key;
|
||||
}
|
||||
|
||||
visit(schema, name) {
|
||||
const schemaType = schema.type;
|
||||
const ruleName = name || 'root';
|
||||
|
||||
if (schema.oneOf || schema.anyOf) {
|
||||
const rule = (schema.oneOf || schema.anyOf).map((altSchema, i) =>
|
||||
this.visit(altSchema, `${name}${name ? "-" : ""}${i}`)
|
||||
).join(' | ');
|
||||
|
||||
return this._addRule(ruleName, rule);
|
||||
} else if ('const' in schema) {
|
||||
return this._addRule(ruleName, this._formatLiteral(schema.const));
|
||||
} else if ('enum' in schema) {
|
||||
const rule = schema.enum.map(v => this._formatLiteral(v)).join(' | ');
|
||||
return this._addRule(ruleName, rule);
|
||||
} else if (schemaType === 'object' && 'properties' in schema) {
|
||||
// TODO: `required` keyword (from python implementation)
|
||||
const propOrder = this._propOrder;
|
||||
const propPairs = Object.entries(schema.properties).sort((a, b) => {
|
||||
// sort by position in prop_order (if specified) then by key
|
||||
const orderA = typeof propOrder[a[0]] === 'number' ? propOrder[a[0]] : Infinity;
|
||||
const orderB = typeof propOrder[b[0]] === 'number' ? propOrder[b[0]] : Infinity;
|
||||
return orderA - orderB || a[0].localeCompare(b[0]);
|
||||
});
|
||||
|
||||
let rule = '"{" space';
|
||||
propPairs.forEach(([propName, propSchema], i) => {
|
||||
const propRuleName = this.visit(propSchema, `${name}${name ? "-" : ""}${propName}`);
|
||||
if (i > 0) {
|
||||
rule += ' "," space';
|
||||
}
|
||||
rule += ` ${this._formatLiteral(propName)} space ":" space ${propRuleName}`;
|
||||
});
|
||||
rule += ' "}" space';
|
||||
|
||||
return this._addRule(ruleName, rule);
|
||||
} else if (schemaType === 'array' && 'items' in schema) {
|
||||
// TODO `prefixItems` keyword (from python implementation)
|
||||
const itemRuleName = this.visit(schema.items, `${name}${name ? "-" : ""}item`);
|
||||
const rule = `"[" space (${itemRuleName} ("," space ${itemRuleName})*)? "]" space`;
|
||||
return this._addRule(ruleName, rule);
|
||||
} else {
|
||||
if (!PRIMITIVE_RULES[schemaType]) {
|
||||
throw new Error(`Unrecognized schema: ${JSON.stringify(schema)}`);
|
||||
}
|
||||
return this._addRule(
|
||||
ruleName === 'root' ? 'root' : schemaType,
|
||||
PRIMITIVE_RULES[schemaType]
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
formatGrammar() {
|
||||
let grammar = '';
|
||||
this._rules.forEach((rule, name) => {
|
||||
grammar += `${name} ::= ${rule}\n`;
|
||||
});
|
||||
return grammar;
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user