将拼写的数字转换为数字 [英] Convert spelled out number to number

问题描述

在Objective-C / Cocoa中，有没有办法将拼写出来的单词转换为多种语言的 NSNumber 或同等语言？

Is there a way, in Objective-C/Cocoa, to convert spelled out words to an NSNumber or equivalent in multiple languages?

例如：

将三个转换为 code>或将 ocho 转换为 8 （西班牙语）。

convert three to 3 or convert ocho to 8 (Spanish).

也略有不同，但 3 1/2 到 3.5

我可以编写我自己的代码来做到这一点，但我希望有一个内置的方法来做到这一点。

I could write my own code to do this, but I was hoping there was a built-in way to do this. Getting the translations of every number in several languages is something I'd like to avoid.

推荐答案

NSNumberFormatter 可以从文本转换为数字：

NSNumberFormatter can convert from text to numbers:

NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
formatter.numberStyle = NSNumberFormatterSpellOutStyle;

NSLog(@"%@", [formatter numberFromString:@"thirty-four"]);
NSLog(@"%@", [formatter numberFromString:@"three point five"]);

formatter.locale = [[NSLocale alloc]initWithLocaleIdentifier:[NSLocale localeIdentifierFromComponents:@{NSLocaleLanguageCode: @"es"}]];

NSLog(@"%@", [formatter numberFromString:@"ocho"]);

它可以处理的问题有严重的限制（它不会自动检测语言，如果你偏离预期格式（例如，三十四而不是三十四），分数等），但对于窄域，它似乎做这项工作。

There are serious limitations as to what it can handle (it doesn't auto detect languages, if you deviate from the expected format (e.g. "thirty four" instead of "thirty-four"), fractions, etc.), but for the narrow domain, it appears to do the job.

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