backtracking

However, backtracking is computationally expensive and can easily get out of hand if you're not careful.

然而，回溯计算代价昂贵，如果你不够小心的话容易失控。

At this point, the atomic group will kick in. The engine will discard all backtracking positions.

此时，最小组团就发挥作用了：正则引擎会放弃所有回溯位置。

As I said, there's a lot of backtracking in the story, which may serve to confuse some but is really important to the storyline .

就象我所说的，在整个故事中有不少的“倒带”的把戏，也许会让不少观众感到困惑，但却对主线非常的重要。

Each time the regex finds an intermediate tag and exits a lookahead, it throws away all backtracking positions from within the lookahead.

正则表达式每次找到一个中间标签就退出一个前瞻，它在前瞻过程中丢弃所有回溯位置。

However, the firm is now backtracking and has changed the wording of its original advertisement.

然而，IBM已经收回前言，改变了原始广告的措辞。

The company is backtracking from its more expensive plans.

这家公司在逐步放弃种种耗资较大的计划。

To help you catch runaway backtracking early, always test your regexes with long strings that contain partial matches.

为帮助你早日把握回溯失控，总是用包含特殊匹配的长字符串测试你的正则表达式。

in an unfamiliar climbing area , take extra care when locating crabs , backtracking if necessary , or asking locals for approach beta.

在不熟悉的区域，要更加小心确认自己的位置，必要时多询问当地的攀岩者，或者是退回原处重新找路。

"Dingle-dork, " Ronnie muttered to himself, then started backtracking up the grade.

“这个乳臭未干的傻瓜，”罗尼一边小声嘀咕着，一边再次拾级而上。

Speaking generally, European governments have been disappointed by Obama's backtracking on Israeli settlement expansion.

基本上，欧洲各国一直很失望奥巴马在以色列扩建犹太人定居点一事上的退缩。

Tuesday's expected announcement is certain to be welcomed by green groups though they will fear further backtracking in years to come.

预期中的财政部公告肯定会受绿色团体的欢迎，尽管他们担心财政部会在未来的几年内反悔。

Next up is a deeper look into a key feature of the matching process in step 3: backtracking.

接下来我们深入剖析第三步中匹配过程的关键点：回溯。

So far, there's no risk of runaway backtracking, despite the nested * quantifiers.

到目前为止还没有回溯失控的危险，尽管遇到了嵌套量词*。

He spent much of Tuesday backtracking but still calling for corporate titans to take responsibility for grievous errors in judgment.

他周二花了很多时间改变言论，但还是要求公司巨头们为判断上的严重错误承担责任。

This secures the end of the dart. Backtracking can also be used to secure the end of the dart.

这样可保证省道终端不松散。加固缝也可用来缉缝省道总端。

Of course, the planet really isn't backtracking; it just looks as though it is.

当然，它并不是真的倒退运行了，只是看起来如此而已。

Eight queens problem is an ancient and well-known problem, backtracking algorithm is a typical example.

八皇后问题，是一个古老而著名的问题，是回溯算法的典型例题。

A double-star combination like (a|b*)* is a sure-fire recipe for catastrophic backtracking.

像（a|b*）*这样的双星号组合，是灾难式回溯的保证。

The Opposition NDP used question period Thursday to attack the Liberals for backtracking on the deal with the veterans.

反对党新民主党周四期间使用的问题，攻击就处理回溯与退伍军人的自由党。

A special backtracking is used to automatically correct some errors happened in forward tracking. A trace figure of the c. . .

一种特殊的后向追踪可以修改和纠正前向追踪里出现的错误，并以轨迹图的方式显示最后的追踪结果。