double-byte

Block users from entering double-byte characters in textboxes [closed]

由 半城伤御伤魂 提交于 2020-01-07 08:46:31
问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed last year . I want users to prevent entering double-byte characters in input fields. Following code will allow users to enter a-z or A-Z. I want users to prevent entering double-byte characters like Korean, Chinese etc. But users should be allowed to enter Spanish characters since those are not double-byte

How to compare and convert emoji characters in C#

由 北城以北 提交于 2019-12-09 10:51:33
问题 I am trying to figure out how to check if a string contains a specfic emoji. For example, look at the following two emoji: Bicyclist: http://unicode.org/emoji/charts/full-emoji-list.html#1f6b4 US Flag: http://unicode.org/emoji/charts/full-emoji-list.html#1f1fa_1f1f8 Bicyclist is U+1F6B4 , and the US flag is U+1F1FA U+1F1F8 . However, the emoji to check for are provided to me in an array like this, with just the numerical value in strings: var checkFor = new string[] {"1F6B4","1F1FA-1F1F8"};

How to compare and convert emoji characters in C#

由 二次信任 提交于 2019-12-03 13:40:01
I am trying to figure out how to check if a string contains a specfic emoji. For example, look at the following two emoji: Bicyclist: http://unicode.org/emoji/charts/full-emoji-list.html#1f6b4 US Flag: http://unicode.org/emoji/charts/full-emoji-list.html#1f1fa_1f1f8 Bicyclist is U+1F6B4 , and the US flag is U+1F1FA U+1F1F8 . However, the emoji to check for are provided to me in an array like this, with just the numerical value in strings: var checkFor = new string[] {"1F6B4","1F1FA-1F1F8"}; How can I convert those array values into actual unicode characters and check to see if a string

Convert (doublebyte) string to Hex

由 徘徊边缘 提交于 2019-11-30 18:12:51
问题 Let's say I have the word "Russian" written in Cyrillic. This is would be the quivalent of the following in Hex: Русский My question is: how do I write a function which will go from "Russian" in Cyrillic to it's hex value as above? Could this same function work also for singel byte characters? 回答1: The 〹 thingies are called HTML Entities. In PHP there is a function that can create these: mb_encode_numericentityDocs, it's part of the Multibyte String extension (Demo): $cyrillic = 'русский';

How to find whether a particular string has unicode characters (esp. Double Byte characters)

由 落爺英雄遲暮 提交于 2019-11-28 20:20:09
To be more precise, I need to know whether (and if possible, how) I can find whether a given string has double byte characters or not. Basically, I need to open a pop-up to display a given text which can contain double byte characters, like Chinese or Japanese. In this case, we need to adjust the window size than it would be for English or ASCII. Anyone has a clue? pcorcoran JavaScript holds text internally as UCS-2, which can encode a fairly extensive subset of Unicode. But that's not really germane to your question. One solution might be to loop through the string and examine the character

How to find whether a particular string has unicode characters (esp. Double Byte characters)

由 送分小仙女□ 提交于 2019-11-27 13:03:51
问题 To be more precise, I need to know whether (and if possible, how) I can find whether a given string has double byte characters or not. Basically, I need to open a pop-up to display a given text which can contain double byte characters, like Chinese or Japanese. In this case, we need to adjust the window size than it would be for English or ASCII. Anyone has a clue? 回答1: JavaScript holds text internally as UCS-2, which can encode a fairly extensive subset of Unicode. But that's not really
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