@langchain/core
Version:
Core LangChain.js abstractions and schemas
255 lines (253 loc) • 10.1 kB
JavaScript
const require_errorMessages = require('../errorMessages.cjs');
//#region src/utils/zod-to-json-schema/parsers/string.ts
let emojiRegex = void 0;
/**
* Generated from the regular expressions found here as of 2024-05-22:
* https://github.com/colinhacks/zod/blob/master/src/types.ts.
*
* Expressions with /i flag have been changed accordingly.
*/
const zodPatterns = {
cuid: /^[cC][^\s-]{8,}$/,
cuid2: /^[0-9a-z]+$/,
ulid: /^[0-9A-HJKMNP-TV-Z]{26}$/,
email: /^(?!\.)(?!.*\.\.)([a-zA-Z0-9_'+\-\.]*)[a-zA-Z0-9_+-]@([a-zA-Z0-9][a-zA-Z0-9\-]*\.)+[a-zA-Z]{2,}$/,
emoji: () => {
if (emojiRegex === void 0) emojiRegex = RegExp("^(\\p{Extended_Pictographic}|\\p{Emoji_Component})+$", "u");
return emojiRegex;
},
uuid: /^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$/,
ipv4: /^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$/,
ipv4Cidr: /^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\/(3[0-2]|[12]?[0-9])$/,
ipv6: /^(([a-f0-9]{1,4}:){7}|::([a-f0-9]{1,4}:){0,6}|([a-f0-9]{1,4}:){1}:([a-f0-9]{1,4}:){0,5}|([a-f0-9]{1,4}:){2}:([a-f0-9]{1,4}:){0,4}|([a-f0-9]{1,4}:){3}:([a-f0-9]{1,4}:){0,3}|([a-f0-9]{1,4}:){4}:([a-f0-9]{1,4}:){0,2}|([a-f0-9]{1,4}:){5}:([a-f0-9]{1,4}:){0,1})([a-f0-9]{1,4}|(((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2}))\.){3}((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2})))$/,
ipv6Cidr: /^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\/(12[0-8]|1[01][0-9]|[1-9]?[0-9])$/,
base64: /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/,
base64url: /^([0-9a-zA-Z-_]{4})*(([0-9a-zA-Z-_]{2}(==)?)|([0-9a-zA-Z-_]{3}(=)?))?$/,
nanoid: /^[a-zA-Z0-9_-]{21}$/,
jwt: /^[A-Za-z0-9-_]+\.[A-Za-z0-9-_]+\.[A-Za-z0-9-_]*$/
};
function parseStringDef(def, refs) {
const res = { type: "string" };
if (def.checks) for (const check of def.checks) switch (check.kind) {
case "min":
require_errorMessages.setResponseValueAndErrors(res, "minLength", typeof res.minLength === "number" ? Math.max(res.minLength, check.value) : check.value, check.message, refs);
break;
case "max":
require_errorMessages.setResponseValueAndErrors(res, "maxLength", typeof res.maxLength === "number" ? Math.min(res.maxLength, check.value) : check.value, check.message, refs);
break;
case "email":
switch (refs.emailStrategy) {
case "format:email":
addFormat(res, "email", check.message, refs);
break;
case "format:idn-email":
addFormat(res, "idn-email", check.message, refs);
break;
case "pattern:zod":
addPattern(res, zodPatterns.email, check.message, refs);
break;
}
break;
case "url":
addFormat(res, "uri", check.message, refs);
break;
case "uuid":
addFormat(res, "uuid", check.message, refs);
break;
case "regex":
addPattern(res, check.regex, check.message, refs);
break;
case "cuid":
addPattern(res, zodPatterns.cuid, check.message, refs);
break;
case "cuid2":
addPattern(res, zodPatterns.cuid2, check.message, refs);
break;
case "startsWith":
addPattern(res, RegExp(`^${escapeLiteralCheckValue(check.value, refs)}`), check.message, refs);
break;
case "endsWith":
addPattern(res, RegExp(`${escapeLiteralCheckValue(check.value, refs)}$`), check.message, refs);
break;
case "datetime":
addFormat(res, "date-time", check.message, refs);
break;
case "date":
addFormat(res, "date", check.message, refs);
break;
case "time":
addFormat(res, "time", check.message, refs);
break;
case "duration":
addFormat(res, "duration", check.message, refs);
break;
case "length":
require_errorMessages.setResponseValueAndErrors(res, "minLength", typeof res.minLength === "number" ? Math.max(res.minLength, check.value) : check.value, check.message, refs);
require_errorMessages.setResponseValueAndErrors(res, "maxLength", typeof res.maxLength === "number" ? Math.min(res.maxLength, check.value) : check.value, check.message, refs);
break;
case "includes":
addPattern(res, RegExp(escapeLiteralCheckValue(check.value, refs)), check.message, refs);
break;
case "ip":
if (check.version !== "v6") addFormat(res, "ipv4", check.message, refs);
if (check.version !== "v4") addFormat(res, "ipv6", check.message, refs);
break;
case "base64url":
addPattern(res, zodPatterns.base64url, check.message, refs);
break;
case "jwt":
addPattern(res, zodPatterns.jwt, check.message, refs);
break;
case "cidr":
if (check.version !== "v6") addPattern(res, zodPatterns.ipv4Cidr, check.message, refs);
if (check.version !== "v4") addPattern(res, zodPatterns.ipv6Cidr, check.message, refs);
break;
case "emoji":
addPattern(res, zodPatterns.emoji(), check.message, refs);
break;
case "ulid":
addPattern(res, zodPatterns.ulid, check.message, refs);
break;
case "base64":
switch (refs.base64Strategy) {
case "format:binary":
addFormat(res, "binary", check.message, refs);
break;
case "contentEncoding:base64":
require_errorMessages.setResponseValueAndErrors(res, "contentEncoding", "base64", check.message, refs);
break;
case "pattern:zod":
addPattern(res, zodPatterns.base64, check.message, refs);
break;
}
break;
case "nanoid":
addPattern(res, zodPatterns.nanoid, check.message, refs);
break;
case "toLowerCase":
case "toUpperCase":
case "trim": break;
default:
/* c8 ignore next */
((_) => {})(check);
}
return res;
}
function escapeLiteralCheckValue(literal, refs) {
return refs.patternStrategy === "escape" ? escapeNonAlphaNumeric(literal) : literal;
}
const ALPHA_NUMERIC = /* @__PURE__ */ new Set("ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvxyz0123456789");
function escapeNonAlphaNumeric(source) {
let result = "";
for (let i = 0; i < source.length; i++) {
if (!ALPHA_NUMERIC.has(source[i])) result += "\\";
result += source[i];
}
return result;
}
function addFormat(schema, value, message, refs) {
if (schema.format || schema.anyOf?.some((x) => x.format)) {
if (!schema.anyOf) schema.anyOf = [];
if (schema.format) {
schema.anyOf.push({
format: schema.format,
...schema.errorMessage && refs.errorMessages && { errorMessage: { format: schema.errorMessage.format } }
});
delete schema.format;
if (schema.errorMessage) {
delete schema.errorMessage.format;
if (Object.keys(schema.errorMessage).length === 0) delete schema.errorMessage;
}
}
schema.anyOf.push({
format: value,
...message && refs.errorMessages && { errorMessage: { format: message } }
});
} else require_errorMessages.setResponseValueAndErrors(schema, "format", value, message, refs);
}
function addPattern(schema, regex, message, refs) {
if (schema.pattern || schema.allOf?.some((x) => x.pattern)) {
if (!schema.allOf) schema.allOf = [];
if (schema.pattern) {
schema.allOf.push({
pattern: schema.pattern,
...schema.errorMessage && refs.errorMessages && { errorMessage: { pattern: schema.errorMessage.pattern } }
});
delete schema.pattern;
if (schema.errorMessage) {
delete schema.errorMessage.pattern;
if (Object.keys(schema.errorMessage).length === 0) delete schema.errorMessage;
}
}
schema.allOf.push({
pattern: stringifyRegExpWithFlags(regex, refs),
...message && refs.errorMessages && { errorMessage: { pattern: message } }
});
} else require_errorMessages.setResponseValueAndErrors(schema, "pattern", stringifyRegExpWithFlags(regex, refs), message, refs);
}
function stringifyRegExpWithFlags(regex, refs) {
if (!refs.applyRegexFlags || !regex.flags) return regex.source;
const flags = {
i: regex.flags.includes("i"),
m: regex.flags.includes("m"),
s: regex.flags.includes("s")
};
const source = flags.i ? regex.source.toLowerCase() : regex.source;
let pattern = "";
let isEscaped = false;
let inCharGroup = false;
let inCharRange = false;
for (let i = 0; i < source.length; i++) {
if (isEscaped) {
pattern += source[i];
isEscaped = false;
continue;
}
if (flags.i) {
if (inCharGroup) {
if (source[i].match(/[a-z]/)) {
if (inCharRange) {
pattern += source[i];
pattern += `${source[i - 2]}-${source[i]}`.toUpperCase();
inCharRange = false;
} else if (source[i + 1] === "-" && source[i + 2]?.match(/[a-z]/)) {
pattern += source[i];
inCharRange = true;
} else pattern += `${source[i]}${source[i].toUpperCase()}`;
continue;
}
} else if (source[i].match(/[a-z]/)) {
pattern += `[${source[i]}${source[i].toUpperCase()}]`;
continue;
}
}
if (flags.m) {
if (source[i] === "^") {
pattern += `(^|(?<=[\r\n]))`;
continue;
} else if (source[i] === "$") {
pattern += `($|(?=[\r\n]))`;
continue;
}
}
if (flags.s && source[i] === ".") {
pattern += inCharGroup ? `${source[i]}\r\n` : `[${source[i]}\r\n]`;
continue;
}
pattern += source[i];
if (source[i] === "\\") isEscaped = true;
else if (inCharGroup && source[i] === "]") inCharGroup = false;
else if (!inCharGroup && source[i] === "[") inCharGroup = true;
}
try {
new RegExp(pattern);
} catch {
console.warn(`Could not convert regex pattern at ${refs.currentPath.join("/")} to a flag-independent form! Falling back to the flag-ignorant source`);
return regex.source;
}
return pattern;
}
//#endregion
exports.parseStringDef = parseStringDef;
exports.zodPatterns = zodPatterns;
//# sourceMappingURL=string.cjs.map