I think the error occurs if the input encoding of the file is different from the preferred encoding of your environment. Example: in is UTF-8 $ LANG=de_DE.UTF-8 sed ‘s/.*| //’ < in X Y $ LANG=de_DE.iso88591 sed ‘s/.*| //’ < in X Y UTF-8 can safely be interpreted as ISO-8859-1, you’ll get strange characters but … Read more
yes, %c will print a single char: printf(“%c”, ‘h’); also, putchar/putc will work too. From “man putchar”: #include <stdio.h> int fputc(int c, FILE *stream); int putc(int c, FILE *stream); int putchar(int c); * fputc() writes the character c, cast to an unsigned char, to stream. * putc() is equivalent to fputc() except that it may … Read more
If you need MySQL to support 4-byte UTF-8 characters (which is normally considered part of UTF-8), you need to use the character set utf8mb4, not utf8. utf8mb4 was first supported in MySQL 5.5.3.
Reason for Infinite loop: cin goes into a failed state and that makes it ignore further calls to it, till the error flag and buffer are reset. cin.clear(); cin.ignore(100, ‘\n’); //100 –> asks cin to discard 100 characters from the input stream. Check if input is numeric: In your code, even a non-int type gets … Read more
$str = preg_replace(‘/[^\00-\255]+/u’, ”, $str);
In Swift 2.0, toInt(), etc., have been replaced with initializers. (In this case, Int(someString).) Because not all strings can be converted to ints, this initializer is failable, which means it returns an optional int (Int?) instead of just an Int. The best thing to do is unwrap this optional using if let. I’m not sure … Read more
You can try RuneCountInString from the utf8 package. returns the number of runes in p that, as illustrated in this script: the length of “World” might be 6 (when written in Chinese: “世界”), but the rune count of “世界” is 2: package main import “fmt” import “unicode/utf8” func main() { fmt.Println(“Hello, 世界”, len(“世界”), utf8.RuneCountInString(“世界”)) } … Read more
You could use the substr function to return a substring starting from the 5th character: $str = “The quick brown fox jumps over the lazy dog.” $str2 = substr($str, 4); // “quick brown fox jumps over the lazy dog.”
The Core Foundation function CFStringTransform() has transformations that determine the Unicode standard name for special characters. Example: let c : Character = “😄” let cfstr = NSMutableString(string: String(c)) as CFMutableString var range = CFRangeMake(0, CFStringGetLength(cfstr)) CFStringTransform(cfstr, &range, kCFStringTransformToUnicodeName, false) print(cfstr) Output: \N{SMILING FACE WITH OPEN MOUTH AND SMILING EYES} See http://nshipster.com/cfstringtransform/ for more information about … Read more