yahoo-finance2
Version:
JS API for Yahoo Finance
81 lines (80 loc) • 2.98 kB
JavaScript
;
// Copyright 2018-2025 the Deno authors. MIT license.
// Copyright the Browserify authors. MIT License.
// Ported from https://github.com/browserify/path-browserify/
// This module is browser compatible.
Object.defineProperty(exports, "__esModule", { value: true });
exports.normalizeString = normalizeString;
const constants_js_1 = require("./constants.js");
// Resolves . and .. elements in a path with directory names
function normalizeString(path, allowAboveRoot, separator, isPathSeparator) {
let res = "";
let lastSegmentLength = 0;
let lastSlash = -1;
let dots = 0;
let code;
for (let i = 0; i <= path.length; ++i) {
if (i < path.length)
code = path.charCodeAt(i);
else if (isPathSeparator(code))
break;
else
code = constants_js_1.CHAR_FORWARD_SLASH;
if (isPathSeparator(code)) {
if (lastSlash === i - 1 || dots === 1) {
// NOOP
}
else if (lastSlash !== i - 1 && dots === 2) {
if (res.length < 2 ||
lastSegmentLength !== 2 ||
res.charCodeAt(res.length - 1) !== constants_js_1.CHAR_DOT ||
res.charCodeAt(res.length - 2) !== constants_js_1.CHAR_DOT) {
if (res.length > 2) {
const lastSlashIndex = res.lastIndexOf(separator);
if (lastSlashIndex === -1) {
res = "";
lastSegmentLength = 0;
}
else {
res = res.slice(0, lastSlashIndex);
lastSegmentLength = res.length - 1 - res.lastIndexOf(separator);
}
lastSlash = i;
dots = 0;
continue;
}
else if (res.length === 2 || res.length === 1) {
res = "";
lastSegmentLength = 0;
lastSlash = i;
dots = 0;
continue;
}
}
if (allowAboveRoot) {
if (res.length > 0)
res += `${separator}..`;
else
res = "..";
lastSegmentLength = 2;
}
}
else {
if (res.length > 0)
res += separator + path.slice(lastSlash + 1, i);
else
res = path.slice(lastSlash + 1, i);
lastSegmentLength = i - lastSlash - 1;
}
lastSlash = i;
dots = 0;
}
else if (code === constants_js_1.CHAR_DOT && dots !== -1) {
++dots;
}
else {
dots = -1;
}
}
return res;
}