MySQLã®æ–‡å—コードをutf8mb4ã«å¤‰æ›´ - QiitaDeleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article?
utf8_unicode_ci ã«å¯¾ã™ã‚‹æ—¥æœ¬ã®é–‹ç™ºè€…ã®è¦‹è§£ - ã‹ã¿ã½ã‚ーる
RailsãŒMySQLã®collationをサーãƒãƒ¼å´ã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®utf8_general_ciã‹ã‚‰utf8_unicode_ciã«ã‚ã–ã‚ã–変ãˆã¦ã‚‹ã®ã©ã†ã›å¤§ã—ãŸç†ç”±ã˜ã‚ƒãªã„ã ã‚ã¨æ€ã£ã¦æŽ˜ã£ã¦ã¿ãŸã‚‰ã‚„ã£ã±ã‚Šå¤§ã—ãŸç†ç”±ã˜ã‚ƒãªã‹ã£ãŸâ€¦ https://t.co/6NeetGhTF0— Ryuta Kamizono (@kamipo) April 18, 2014 Railsã§collationã¨ã—ã¦utf8_unicode_ci(Railsã®DEFAULT_COLLATION)ãŒæŽ¡ç”¨ã•ã‚Œã‚‹ã®ã¯charsetãŒæœªæŒ‡å®šã‚‚ã—ãã¯utf8(Railsã®DEFAULT_CHARSET)ã®ã¨ãã ã‘ã§ã€utf8mb4ã«ã™ã‚‹ã“ã¨ã¨ã‹ã¯å…¨ã考慮ã•ã‚Œã¦ãªã„。— Ryuta Kamizono (@kamipo) April 19, 2014 @frsyuki MySQLã®charset utf8ã®ã¨ãã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆ
Perl UTF-8 crash course
I’ve been seeing the occurrences of perl programmers not understanding perl’s very simple (and sometimes buggy but easily fixable) handling of Unicode strings. I confess I had the same misunderstanding until 6–7 years ago, and don’t want everyone to repeat the same mistake. Let’s forget what you know for 5 minutes, and take this simple course. 1. print($a, $b) and print($a . $b); Let’s forget, for
perl - 最速ã®UTF-8処ç†æ³• : 404 Blog Not Found
2013å¹´03月04æ—¥14:45 カテゴリTipsLightweight Languages perl - 最速ã®UTF-8処ç†æ³• Perl Cookbook (English, Kindle Ed.) Christiansen / Torkington [邦訳: Perlクックブック] ã¨ã„ã†ã‚ã‘ã§è§£èª¬ã€‚ 2013/03/04:Unicode::UTF8 ãŒã‚¬ãƒçˆ†é€Ÿã™ãŽã‚‹ - bayashi.net encode より decode ã®ãŒå·®ãŒå¤§ãã„æ„Ÿã˜ã€‚encode ã ã‘ã ã¨ã€æ–‡å—列長ããªã‚‹ã¨ Encode ã®æ–¹ãŒé€Ÿã„ã£ã½ã„。 ã¾ãšã¯æ”¹ã‚ã¦æ¤œè¨¼ã—ã¦ã¿ã¾ã—ょã†ã€‚ https://gist.github.com/dankogai/5079930 確ã‹ã«ãã®é€šã‚Šã«ãªã£ã¦ã„ã¾ã™ã€‚Unicode::UTF8ã¯Encodeã¯ãŠã‚ã‹Perl組ã¿è¾¼ã¿ã®utf8::decodeより高速ãªã®ã‹(æ–‡å—列をコピ
perl - use utf8; #ã£ã¦ä½•ã ? : 404 Blog Not Found
2009å¹´06月15æ—¥07:00 カテゴリLightweight Languages perl - use utf8; #ã£ã¦ä½•ã ? id:otsuneã«å»ºè¨äºˆå®šãƒ•ãƒ©ã‚°ãŒãŸã¦ã‚‰ã‚Œã¦ã„ãŸã®ã§ã€‚ 冬通りã«æ¶ˆãˆè¡Œã制æœã‚¬ãƒ¼ãƒ«ã¯ã€å¤¢ç‰©èªžã«ãƒªã‚¢ãƒ«ã‚’求ã‚ãªã„。 - subtech Perl ã® utf8 関係ãŒæœªã å…¨ãç†è§£ã§ããªã„。ã‚ã‹ã‚‰ãªã„ã“ã¨ãŒã‚ã‹ã‚‰ãªã„ã®ã§æ•´ç† use utf8ã¯ã„ã¤ãƒ•ãƒ©ã‚°ã‚’ãŸã¦ã‚‹ã‹ use utf8 ã—ã¦ã¦ã‚‚フラグãŸãŸãªã„ã“ã¨ãŒã‚る…… ã“ã‚Œã¯ã€ä»¥ä¸‹ã®å®Ÿä¾‹ã‚’見ã¦ã„ãŸã ãã®ãŒä¸€ç•ªã‚ˆã„ã ã‚ã†ã€‚ #!/usr/bin/perl use strict; use warnings; use utf8 (); sub check_flag{ my $str = shift; print qq("$str" ), utf8::is_utf8($str) ? 'is' : 'IS NOT',
Perl 㧠utf8 化ã‘ã—ãŸã¨ãã«ã©ã†ã—ãŸã‚‰ã„ã„ã‹ - TokuLog 改メ tokuhirom’s blog
Blog Search when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${entry.path} [in template "__entry.ftlh" at line 3, column 25] - Reached through: #include "__entry.ftlh" [in template "entry.ftlh" at
UTF8 フラグã‚ã‚Œã“ã‚Œ - daily dayflower
UTF8 フラグã«ã¤ã„ã¦ã‚ã‹ã£ã¦ã‚‹ã¤ã‚‚ã‚Šã ã£ãŸã‚“ã§ã™ãŒï¼Œutf8::is_utf8 considered harmful - Bulknews::Subtech - subtech ã‚’èªã‚“ã§æ··ä¹±ã—ãŸã®ã§ï¼Œè‡ªåˆ†ãªã‚Šã«ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚é–“é•ã„ãŒã‚ã‚Šã¾ã—ãŸã‚‰ã”指摘よã‚ã—ã。 ã¾ã¨ã‚ スカラー変数ã®å†…部表象ã®çŠ¶æ…‹ã‚’示ã™ã‚‚ã®ã¨ã—㦠UTF8 フラグã¨ã„ã†ã‚‚ã®ãŒã‚ã‚‹ スカラー変数ã¯ï¼ˆãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ç‰ã¯åˆ¥ã¨ã—ã¦ï¼‰ä¸‹è¨˜ã®ã‚‚ã®ã‚’æ ¼ç´ã§ãã‚‹ (A) æ–‡å—列（内部表象: UTF-8） (B) æ–‡å—列（内部表象: ISO-8859-1） (C) ãƒã‚¤ãƒŠãƒªåˆ— 純粋ãªãƒã‚¤ãƒŠãƒªã‚¹ãƒˆãƒªãƒ¼ãƒ （画åƒãƒ•ã‚¡ã‚¤ãƒ«ç‰ï¼‰ã‹ã‚‚ã—ã‚Œãªã„ã—， UTF-8 octet stream ã‹ã‚‚ã—ã‚Œãªã„ã—， CP932 octet stream ã‹ã‚‚ã—ã‚Œãªã„ã—，etc, etc ... Perl ã¯ï¼ˆå¾Œæ–¹äº’æ›æ€§ç¢ºä¿ãªã©ã®ç†ç”±ã‹ã‚‰ï¼‰ISO-8859-1
404 Blog Not Found:perl - utf8::is_utf8("\x{ff}") == 0
2008å¹´02月18æ—¥10:00 カテゴリLightweight Languages perl - utf8::is_utf8("\x{ff}") == 0 ã¡ã‚‡ã†ã©ã„ã„機会ãªã®ã§ã€Perl 5.8以é™ã«ãŠã‘ã‚‹utf8フラグã®ç«‹ã¡æ–¹ã‚’。 unknownplace.org - 2008/02/17 - utf8::is_utf8 ã¨ã„ã†ã“ã¨ã§ã€"\x{6751}\x{702c}\x{5927}\x{8f14}" ãªã©ã¨ã„ã†Data::Dumper表記ã§ã‹ãªã‚‰ãšã—ã‚‚ utf-8フラグãŒãŸã¤ã‚ã‘ã˜ã‚ƒãªã„。ã¨ã„ã†ã“ã¨ãŒã„ã„ãŸã‹ã£ãŸã‚“ã ã¨æ€ã†ã®ã ã‘ã‚Œã©ã€ \x{UUUUUU}ã¨utf8 flag ã¾ãšã¯ã‚¯ã‚¤ã‚ºã§ã™ã€‚以下ãŒã©ã†å‡ºåŠ›ã•ã‚Œã‚‹ã‹ã‚’ç”ãˆãªã•ã„。 sub pfrag{ print utf8::is_utf8($_[0]) ? 1 : 0, "\n" } pfrag "Hell\xC3, worl
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