2011

究竟要有多少个明天
才能够到达
在眼前 宽敞的道路
那遥远的彼方…
如果在途中停止
那梦想 就会到此结束
不管是多长的路程
都会有个开始
TRUE ROAD

张开的手掌
无法装下任何沙粒
但是只要用力 握紧拳头
就可以不放弃任何事情继续下去
从少年时期
一直 无法忘记
我愿望的沙粒
什么都没有变
如今也还在

有些时候 雨会倾盆
风也会吹起
即使心被悲伤沾满
即使迷失了方向…
找得见的光芒
要到处去寻找
微笑着的朋友 就在身边
将手伸出
TRUE FRIEND

有些人的手掌
一直都非常温暖
将一起生活的这段日子
照得如同太阳一般
流眼泪这件事
并不是什么害羞的事情
我愿望的沙粒
为了让花绽开
下起了雨

如同世界的人数
手掌和愿望也那么多
如果开始相信
那么就不会有争执…
TRUE LIFE

自己的手掌
究竟紧握着些什么？
放松 如果将手掌打开
就能看见当时下定的决心
为了成为大人
如同溢出来般的疑问
为什么会活着？
问一问沙粒
我为什么在这儿…

Disclaimer: This article is not and does not intend to be an introduction to the Go programming language.

Recently I’ve been learning the Go language created by Googlers, it’s a nice and elegant new language that seems to have a bright future.

Coming from a PHP background, there are a few things that I totally don’t understand (initially). PHP is a loosely typed programming language, you can convert int to string anytime anywhere and convert back as well. It’s the first time I meet up with a static typing language, that caused me quite some trouble in the beginning but I have been getting used to it ever since (and maybe beginning to appreciate it as well).

Besides that I have totally no concept about pointers as well, I’ve dealt them a little in PHP but in other languages like C, C++ it’s all about pointers. That makes it difficult for me. Luckily, Go has very little to do with pointers, I was quite relieved when I knew about that.

PHP array equivalence

Well, there are arrays in Go, but they’re different from PHP. For instance, to create an array one can do something like this:

It is possible to append to an array directly with $array[] and you don’t have to initialize nor declare the length of the array before you use it. In Go it’s a totally different thing (basically, in all other languages it is a totally different thing), you need to declare and initialize the array before use.

Note that you can’t just append items to arrays with tmpArray[], you have to specify an index. But what if I don’t know exactly how big my array is gonna be? That’s when you should use slice. A slice allows you to dynamically extend your arrays, and make it as long as possible.

Note that I declared and initialized a tmpArray with 0 length, then I looped 10 times and added items to it. But I suppose that this operation is expensive because if you need to extend the slice’s size it will initialize a new slice with the larger length, copy all items over and give it back to you, so it’s always good to either determine how large you need the slice to be before you begin.

What about associative arrays? Associative arrays in PHP are extremely useful and I personally use them all the time. In Go however, they aren’t called arrays, they’re maps.

To initialize a map, you do make(map[string]string), code example as below:

Notice that you can assign new items right away. If you want to assign when you declare the variable, you can do so:

A very handy and useful functionality in Go.

Regular Expressions In Go

I can’t cover too much in this area, as I have also yet to explore on regular expressions in Go yet. But I can provide some basic information on how to use regular expressions in Go.

In PHP, we do preg_match("/([a-zA-Z0-9]+)/", $string, $results) to find all alphanumeric characters. The equivalence in Go is the following:

You then have all the matches in match, which is an array of type [][]string, all the match results are stored in match[1] just like in php. Besides FindStringSubmatch, there are still a lot of functions you should read the documentation.

isset()

Performing an operation on an uninitialized variable will cause the whole program to terminate immediately. PHP has a useful function called isset(), but how do we use the equivalent on Go?

It turns out, in Go, assignments actually return 2 variables. The 2nd variable indicates if the operation is a success. So if you’re not sure whether the variable notSet is set or not, do the following:

Conclusion

The only painful part of transitioning from PHP to Go is that every time you make some changes you have to recompile it to see the effect. In PHP you just have to tap Cmd+R in your browser to see the changes in effect. Besides that, resources on the Go programming language is still scarce and libraries aren’t quite available yet.

Other than that, I don’t see any reasons why we shouldn’t use Go.

photo © 2008 Smithsonian Institution | more info (via: Wylio)“洒满天空的星星当中
哪一颗是最耀眼的？”即使被这样问道
也必定没有人能够回答
黑暗的前方有着这里看不见的光芒
舞台的角落里，持续挣扎
在充满遗憾、空虚的青春时期

少女们啊
黎明就快要来了
梦想中的未来从现在开始
wow wow

少女们啊什么也别放弃
抛弃所有悲伤的事情
用全力 全力去奔跑

能够照进人的眼帘的星星和
无法让人留意的星星
这其中到底
有什么差别？
是连光也无法到达的距离呢
还是因为云的关系呢
想要得到一个答案

无法像想象那样生活
那样的自己
如果因失意而感到恐慌的话
那么就给自己一个推力吧

懊恼的过程中
会不知不觉变强
今日的泪水将成为明日的力量
wow wow

懊恼的时候也要向前踏一步
若是止步的话一切就在那儿结束了
加油 加油 要相信自己的力量

少女们啊
黎明就快要来了
梦想中的未来从现在开始
wow wow

少女们啊什么也别放弃
抛弃所有悲伤的事情
用全力 全力去奔跑

这个世界上任何事情都是相对的，有最受注目的，也有完全没有受到任何人注意的。即使是目前最耀眼的星星，也必定经过或者将经历一段完全没有人注目的时期。这种时候，秉持着自己的信念，相信自己的力量，继续往前走是最重要的。要是因为觉得没有希望而放弃，那么一切就真的没有希望了。在这世上，任何事情都是被允许的，只要你想要那个结果，那么就做出自己的行动，自己去争取。

即使第一次没有成功，也不表示下一次会失败。或许有些事情不允许重来，但是事事都有例外，只看自己要不要争取。来到这个世界上已经 19 年了，一路走过来，发现自己许多事情想做，却没有去做，一路懊悔下来，已经不知有多少件了。如果想要的话，就要自己付出，自己行动。实现的力量已经在你的手上，只是看你想不想或者要不要去用而已。

SWL final was yesterday, it was both an exciting match and disappointing match at the same time. While I was considered neutral (as in, not supporting either of the team), I was rooting for KT to win. KT dominated much of the SWL rounds 3 and 4. However yesterday’s match was unexpectedly one-sided, as SKT’s s2 pulled off a 3-kill, KT Flash only made 1-kill before falling to Bisu.

Had KT’s coach sent more reliable players (as in not sending a Zerg to fight a Zerg), or calculated/make strategies according to map order, should Flash ever fall early he should still be able to pull off at least 2 kills. KT does have both skilled and experience players, it is not like the whole match is dependent on Flash’s performance. Of course, Flash’s performance yesterday was terrific, absolutely first class, but that was only his reactions to his opponent’s build. Had he not been Flash, he would have dropped the game in the first 5 minutes. But most of the times in team games, strategy > skills.

If KT does not learn and continues thinking of Flash as the final boss, they can continue inheriting the “Kong” line. No problem for me of course.