1 files changed, 75 insertions, 0 deletions
diff --git a/engines/sludge/CommonCode/utf8.h b/engines/sludge/CommonCode/utf8.h
new file mode 100644
index 0000000000..85989eec37
--- /dev/null
+++ b/engines/sludge/CommonCode/utf8.h
@@ -0,0 +1,75 @@
+#include <stdint.h>
+#include <stdarg.h>
+
+/* is c the start of a utf8 sequence? */
+#define isutf(c) (((c)&0xC0)!=0x80)
+
+/* convert UTF-8 data to wide character */
+int u8_toucs(uint32_t *dest, int sz, char *src, int srcsz);
+
+/* the opposite conversion */
+int u8_toutf8(char *dest, int sz, uint32_t *src, int srcsz);
+
+/* single character to UTF-8 */
+int u8_wc_toutf8(char *dest, uint32_t ch);
+
+/* character number to byte offset */
+int u8_offset(char *str, int charnum);
+
+/* byte offset to character number */
+int u8_charnum(char *s, int offset);
+
+/* return next character, updating an index variable */
+uint32_t u8_nextchar(const char *s, int *i);
+
+/* move to next character */
+void u8_inc(char *s, int *i);
+
+/* move to previous character */
+void u8_dec(char *s, int *i);
+
+/* returns length of next utf-8 sequence */
+int u8_seqlen(char *s);
+
+/* assuming src points to the character after a backslash, read an
+   escape sequence, storing the result in dest and returning the number of
+   input characters processed */
+int u8_read_escape_sequence(char *src, uint32_t *dest);
+
+/* given a wide character, convert it to an ASCII escape sequence stored in
+   buf, where buf is "sz" bytes. returns the number of characters output. */
+int u8_escape_wchar(char *buf, int sz, uint32_t ch);
+
+/* convert a string "src" containing escape sequences to UTF-8 */
+int u8_unescape(char *buf, int sz, char *src);
+
+/* convert UTF-8 "src" to ASCII with escape sequences.
+   if escape_quotes is nonzero, quote characters will be preceded by
+   backslashes as well. */
+int u8_escape(char *buf, int sz, char *src, int escape_quotes);
+
+/* utility predicates used by the above */
+int octal_digit(char c);
+int hex_digit(char c);
+
+/* return a pointer to the first occurrence of ch in s, or NULL if not
+   found. character index of found character returned in *charn. */
+char *u8_strchr(char *s, uint32_t ch, int *charn);
+
+/* same as the above, but searches a buffer of a given size instead of
+   a NUL-terminated string. */
+char *u8_memchr(char *s, uint32_t ch, size_t sz, int *charn);
+
+/* count the number of characters in a UTF-8 string */
+int u8_strlen(char *s);
+
+int u8_is_locale_utf8(char *locale);
+
+/* printf where the format string and arguments may be in UTF-8.
+   you can avoid this function and just use ordinary printf() if the current
+   locale is UTF-8. */
+int u8_vprintf(char *fmt, va_list ap);
+int u8_printf(char *fmt, ...);
+
+
+int u8_isvalid(const char *input);