uemacs/utf8.h

#ifndef UTF8_H
#define UTF8_H

typedef unsigned int unicode_t;

unsigned utf8_to_unicode(char *line, unsigned index, unsigned len, unicode_t *res);
unsigned unicode_to_utf8(unsigned int c, char *utf8);

static inline int is_beginning_utf8(unsigned char c)
{
	return (c & 0xc0) != 0x80;
}

#endif
Split up the utf8 helper functions into a file of their own Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2012-07-10 23:21:35 +00:00			`#ifndef UTF8_H`
			`#define UTF8_H`

			`typedef unsigned int unicode_t;`

			`unsigned utf8_to_unicode(char line, unsigned index, unsigned len, unicode_t res);`
			`unsigned unicode_to_utf8(unsigned int c, char *utf8);`

Make cursor movement (largely) understand UTF-8 character boundaries Ok, so it may do odd things if it's not truly utf-8, and when moving up and down lines that have utf-8 the cursor moves oddly (because the byte offset within the line stays constant, rather than the character offset), but with this you can actually open the UTF8 example file and move around it, and at least some of the movement makes sense. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2012-07-10 23:40:36 +00:00			`static inline int is_beginning_utf8(unsigned char c)`
			`{`
			`return (c & 0xc0) != 0x80;`
			`}`

Split up the utf8 helper functions into a file of their own Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2012-07-10 23:21:35 +00:00			`#endif`