Posted in Javascript onJuly 02, 2013
此文为计算新浪Weibo的消息长度的方法. 就是 (发言请遵守社区公约,还可以输入119字).
var getMessageLength = (function() { var byteLength = function(b) { if(typeof b == "undefined") { return 0; } var a = b.match(/[^\x00-\x80]/g); return(b.length + (!a ? 0 : a.length)); }; return function(message) { message = message || ''; message = message.replace(/\r\n/g, "\n"); var c = 41, d = 140, e = 20, f = message, g = message.match(/http:\/\/[a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+([-A-Z0-9a-z_\$\.\+\!\*\(\)\/,:;@&=\?\~\#\%]*)*/gi) || [], h = 0; for(var i = 0, j = g.length; i < j; i++) { var k = byteLength(g[i]); if(/^(http:\/\/t.cn)/.test(g[i])) { continue; } /^(http:\/\/)+(t.sina.com.cn|t.sina.cn)/.test(g[i]) || /^(http:\/\/)+(weibo.com|weibo.cn)/.test(g[i]) ? h += k <= c ? k : k <= d ? e : k - d + e : h += k <= d ? e : k - d + e; f = f.replace(g[i], ""); } var l = Math.ceil((h + byteLength(f)) / 2); return l; }; })();
getMessageLength('昨天电脑的硬盘坏了,我发邮件给美国国家安全局,他们竟然不肯把备份的内容发给我!'); //39
计算新浪Weibo消息长度(还可以输入119字)
声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
Reply on: @reply_date@
@reply_contents@