87 lines
4.1 KiB
JavaScript
87 lines
4.1 KiB
JavaScript
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
|
|
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
|
|
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
|
|
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
|
|
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
|
|
const dedent = createDedent({});
|
|
export default dedent;
|
|
function createDedent(options) {
|
|
dedent.withOptions = newOptions => createDedent(_objectSpread(_objectSpread({}, options), newOptions));
|
|
return dedent;
|
|
function dedent(strings, ...values) {
|
|
const raw = typeof strings === "string" ? [strings] : strings.raw;
|
|
const {
|
|
alignValues = false,
|
|
escapeSpecialCharacters = Array.isArray(strings),
|
|
trimWhitespace = true
|
|
} = options;
|
|
|
|
// first, perform interpolation
|
|
let result = "";
|
|
for (let i = 0; i < raw.length; i++) {
|
|
let next = raw[i];
|
|
if (escapeSpecialCharacters) {
|
|
// handle escaped newlines, backticks, and interpolation characters
|
|
next = next.replace(/\\\n[ \t]*/g, "").replace(/\\`/g, "`").replace(/\\\$/g, "$").replace(/\\\{/g, "{");
|
|
}
|
|
result += next;
|
|
if (i < values.length) {
|
|
const value = alignValues ? alignValue(values[i], result) : values[i];
|
|
|
|
// eslint-disable-next-line @typescript-eslint/restrict-plus-operands
|
|
result += value;
|
|
}
|
|
}
|
|
|
|
// now strip indentation
|
|
const lines = result.split("\n");
|
|
let mindent = null;
|
|
for (const l of lines) {
|
|
const m = l.match(/^(\s+)\S+/);
|
|
if (m) {
|
|
const indent = m[1].length;
|
|
if (!mindent) {
|
|
// this is the first indented line
|
|
mindent = indent;
|
|
} else {
|
|
mindent = Math.min(mindent, indent);
|
|
}
|
|
}
|
|
}
|
|
if (mindent !== null) {
|
|
const m = mindent; // appease TypeScript
|
|
result = lines
|
|
// https://github.com/typescript-eslint/typescript-eslint/issues/7140
|
|
// eslint-disable-next-line @typescript-eslint/prefer-string-starts-ends-with
|
|
.map(l => l[0] === " " || l[0] === "\t" ? l.slice(m) : l).join("\n");
|
|
}
|
|
|
|
// dedent eats leading and trailing whitespace too
|
|
if (trimWhitespace) {
|
|
result = result.trim();
|
|
}
|
|
|
|
// handle escaped newlines at the end to ensure they don't get stripped too
|
|
if (escapeSpecialCharacters) {
|
|
result = result.replace(/\\n/g, "\n");
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adjusts the indentation of a multi-line interpolated value to match the current line.
|
|
*/
|
|
function alignValue(value, precedingText) {
|
|
if (typeof value !== "string" || !value.includes("\n")) {
|
|
return value;
|
|
}
|
|
const currentLine = precedingText.slice(precedingText.lastIndexOf("\n") + 1);
|
|
const indentMatch = currentLine.match(/^(\s+)/);
|
|
if (indentMatch) {
|
|
const indent = indentMatch[1];
|
|
return value.replace(/\n/g, `\n${indent}`);
|
|
}
|
|
return value;
|
|
}
|