latin1

How to read a binary file with FileReader in order to hash it with SHA-256 in CryptoJS?

由 梦想与她 提交于 2019-11-27 07:09:34
问题 how do I convert a UTF-8 string to Latin1 encoded string using javascript? Here is what I am trying to do: I get a file, split that in chunks by reading as arraybuffer then, I parse the arraybuffer as string and passing it to cryptoJS for hash computation using following code: cryptosha256 = CryptoJS.algo.SHA256.create(); cryptosha256.update(text); hash = cryptosha256.finalize(); It all works well for a text file. I get problems when using the code for hashing a non-text files (image/.wmv

How to detect UTF-8 characters in a Latin1 encoded column - MySQL

由 强颜欢笑 提交于 2019-11-26 21:48:32
I am about to undertake the tedious and gotcha-laden task of converting a database from Latin1 to UTF-8. At this point I simply want to check what sort of data I have stored in my tables, as that will determine what approach I should use to convert the data. Specifically, I want to check if I have UTF-8 characters in the Latin1 columns, what would be the best way to do this? If only a few rows are affected, then I can just fix this manually. Option 1. Perform a MySQL dump and use Perl to search for UTF-8 characters? Option 2. Use MySQL CHAR_LENGTH to find rows with multi-byte characters? e.g.

Differences between utf8 and latin1

由 ∥☆過路亽．° 提交于 2019-11-26 15:47:34
what is the difference between utf8 and latin1? UTF-8 is prepared for world domination, Latin1 isn't. If you're trying to store non-Latin characters like Chinese, Japanese, Hebrew, Russian, etc using Latin1 encoding, then they will end up as mojibake . You may find the introductory text of this article useful (and even more if you know a bit Java). Note that full 4-byte UTF-8 support was only introduced in MySQL 5.5. Before that version, it only goes up to 3 bytes per character, not 4 bytes per character. So, it supported only the BMP plane and not e.g. the Emoji plane. If you want full 4-byte

How to detect UTF-8 characters in a Latin1 encoded column - MySQL

由 眉间皱痕 提交于 2019-11-26 08:03:33
问题 I am about to undertake the tedious and gotcha-laden task of converting a database from Latin1 to UTF-8. At this point I simply want to check what sort of data I have stored in my tables, as that will determine what approach I should use to convert the data. Specifically, I want to check if I have UTF-8 characters in the Latin1 columns, what would be the best way to do this? If only a few rows are affected, then I can just fix this manually. Option 1. Perform a MySQL dump and use Perl to

Differences between utf8 and latin1

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-11-26 04:37:16
问题 what is the difference between utf8 and latin1? 回答1: UTF-8 is prepared for world domination, Latin1 isn't. If you're trying to store non-Latin characters like Chinese, Japanese, Hebrew, Russian, etc using Latin1 encoding, then they will end up as mojibake. You may find the introductory text of this article useful (and even more if you know a bit Java). Note that full 4-byte UTF-8 support was only introduced in MySQL 5.5. Before that version, it only goes up to 3 bytes per character, not 4
订阅 latin1