一号店(yhd.com)单价助手，补全了商品列表中有些商品没标单价的信息，帮助你在1号店(yihaodian)找到最划算的商品
// ==UserScript==
// @name 一号店单价助手
// @namespace http://greasyfork.org/
// @version 1.01
// @description 一号店(yhd.com)单价助手，补全了商品列表中有些商品没标单价的信息，帮助你在1号店(yihaodian)找到最划算的商品
// @author Yarmu
// @match *://list.yhd.com/*
// @match *://search.yhd.com/*
// @grant GM_setValue
// @grant GM_getValue
// @supportURL http://greasyfork.org/zh-CN/users/41708-yarmu
// ==/UserScript==
(function() {
var enabled = GM_getValue('yhd_price_tip_enabled', true);
addListPriceButton(enabled);
if (enabled) {
addPriceTipListener('.proPrice', addListPriceTip, 1000);
}
})();
function addPriceTipListener(tag, func, time) {
var eachCallFunc = function() {
$(tag).each(function() {
if (!$(this).attr('priceTip')) {
$(this).attr('priceTip', '1');
func.call(this);
}
});
};
eachCallFunc();
if (time) {
setInterval(eachCallFunc, time);
}
}
function addListPriceTip() {
var infoItem = $(this).find('.num');
if (infoItem.length === 0) infoItem = $(this).find('.price');
var price = infoItem.attr('yhdprice');
console.log(price);
if (!price) return;
var capacity = infoItem.attr('diapernum');
var unitType = infoItem.attr('productunit');
var unitItem = $(this).find('.unit_price');
console.log([price, capacity, unitType, unitItem.length]);
if (capacity && unitType && unitItem.length) return;
var titleItem = $(this).parent().find('.proName a');
if(titleItem.length === 0) titleItem = $(this).parent().find('.title a');
var title = titleItem.text().trim();
price = parseFloat(price);
capacity = parseFloat(capacity);
var unit;
if (!isNaN(capacity) && capacity > 0 && unitType && unitItem.length === 0) {
if (unitType == '4') {
unitType = 'L';
capacity /= 1000;
price /= capacity;
} else {
unitType = '500g';
capacity /= 500;
price /= capacity;
}
unit = {
price: Math.round(price * 100) / 100,
capacity: Math.round(capacity * 10000) / 10000,
unit: unitType
};
} else {
unit = getUnit(title, price);
if (unit === null) return;
}
var htm = '(¥' + unit.price + '/' + unit.unit + ')';
if (unit.tip) {
title = '( 助手估重: ' + unit.capacity + unit.unit + ' = ' + unit.tip + ' )\n' + title;
titleItem.attr('title', title);
}
if (!unitItem.length) {
unitItem = $('<span class="unit_price"></span>');
$(this).append(unitItem);
}
unitItem.html(htm);
}
function addListPriceButton(isEnabled) {
var button = $('#priceTipButton');
if (button.length > 0) return;
button = $('<a' + (isEnabled? ' class="cur"': '') + ' href="javascript:void(0);">单价助手</a>');
$('.sort_b').append(button);
button.click(function() {
GM_setValue('yhd_price_tip_enabled', !isEnabled);
$(this).attr('class', (!isEnabled? 'cur': ''));
location.reload();
});
}
function getUnit(title, price) {
if (!title) return null;
if (price <= 0) return null;
//处理包含：和送的情况
if (title.match(/：|[)）】]送/)){
var titles = title.split(/：|[)）】]送/);
for (var t=0; t<titles.length; ++t) {
var res = getUnit(titles[t], price);
if (res) return res;
}
}
var regQuant = "个只瓶罐听桶提卷包袋件盒箱组副份盆盘碗支";
var regWeigh = "g|kg|ml|l|千克|克|斤|公斤|毫升|升";
var regFloat = "\\d+\\.?\\d*?(?:\\s*-\\s*\\d+\\.?\\d*?)?";
//处理有总重量的情况
var reg0 = new RegExp('(?:[总净]重量?约?|\\s约)\\s*('+regFloat+')\\s*('+regWeigh+')', 'g');
var pos0 = {i: 0, pCap: 1, pUnit: 2, pCount: 3};
//处理数量前置的情况
var reg1 = new RegExp('(\\d+)\\s*['+regQuant+']?\\s*[*x×'+regQuant+']\\s*('+regFloat+')\\s*('+regWeigh+')', 'ig');
var pos1 = {i: 1, pCap: 2, pUnit: 3, pCount: 1};
//处理数量后置的情况
var reg2 = new RegExp('('+regFloat+')\\s*('+regWeigh+')(?:\\s*\\/?[\\u4e00-\\u9fa5]*)((?:\\s*[*x×'+regQuant+']\\s*\\d+[\\u4e00-\\u9fa5]?)*)', 'ig');
var pos2 = {i: 2, pCap: 1, pUnit: 2, pCount: 3};
var reg, pos;
//处理有括号的情况
var name = title.replace(/[(（【][^)）】]+?(\)|）|】|$)/g, '');
if (reg0.test(title)) {
name = title; reg = reg0; pos = pos0;
} else if (reg1.test(name)) {
reg = reg1; pos = pos1;
} else if (reg2.test(name)) {
reg = reg2; pos = pos2;
} else if (reg1.test(title)) {
name = title; reg = reg1; pos = pos1;
} else {
name = title; reg = reg2; pos = pos2;
}
//处理套装的情况
var isOnlyOne = !/[+＋送和]/i.test(name);
var match = null;
var cap = 0, count = 0, lastMul = 1;
var un = '', tip = '';
reg.lastIndex = 0;
while ((match = reg.exec(name))) {
var capacity;
var caps = match[pos.pCap].split('-');
if (caps.length == 2) {
capacity = (parseFloat(caps[0].trim()) + parseFloat(caps[1].trim()))/2;
} else {
capacity = parseFloat(match[pos.pCap].trim());
}
if (match.length > 3 && match[pos.pCount]) {
var multiple = match[pos.pCount].match(/\d+/g);
if (multiple) for (var i=0; i<multiple.length; ++i) {
lastMul = parseInt(multiple[i]);
capacity *= lastMul;
}
}
if (capacity <= 0) {
continue;
}
var unit = match[pos.pUnit].toLowerCase();
if (unit === 'g' || unit === '克') {
capacity /= 500;
unit = '500g';
} else if (unit === 'kg' || unit === '千克' || unit === '公斤') {
capacity *= 2;
unit = '500g';
} else if (unit === '斤') {
//capacity /= 2;
unit = '500g';
} else if (unit === 'ml' || unit === '毫升') {
capacity /= 1000;
unit = 'L';
} else if (unit === 'l' || unit === '升') {
unit = 'L';
}
if (un === '' || un === unit) {
//处理重复出现的情况
if (isOnlyOne) {
if (capacity > cap) {
tip = ''; cap = 0; count = 0;
} else {
continue;
}
}
un = unit;
tip += match[0] + ' ';
cap += capacity;
++count;
}
}
//处理数量在其他位置的情况
if (count == 1 && pos.i !== 0) {
var regZhn = '两一二三四五六七八九十';
var regMul = '(?:[^*x×满\\d])\\s*(\\d+|['+regZhn+'])['+regQuant+'](?!\\d+折|松)';
reg = new RegExp(regMul, 'i');
match = reg.exec(title);
if (match) {
var mul = regZhn.indexOf(match[1]);
if (mul == -1) mul = parseInt(match[1]);
else if (mul === 0) mul = 2;
if (lastMul != mul) {
cap *= mul;
tip += match[0].substr(1, match[0].length-1).trim();
}
}
}
if (cap > 0) {
var unitPrice = parseFloat(price) / cap;
//如果单价>2000元或<0.5元，太大或太小不显示
if (unitPrice > 2000 || unitPrice < 0.5) return null;
else return {
capacity: Math.round(cap * 10000) / 10000,
unit: un,
price: Math.round(unitPrice * 100) / 100,
tip: tip.trim()
};
} else return null;
}