38   next (const uint8_t *text,  in next()
47     hb_codepoint_t c = *text++;  in next()
54 	if (likely (text < end &&  in next()
55 		    (t1 = text[0] - 0x80u) <= 0x3Fu))  in next()
58 	  text++;  in next()
66 	if (likely (1 < end - text &&  in next()
67 		    (t1 = text[0] - 0x80u) <= 0x3Fu &&  in next()
68 		    (t2 = text[1] - 0x80u) <= 0x3Fu))  in next()
73 	  text += 2;  in next()
81 	if (likely (2 < end - text &&  in next()
82 		    (t1 = text[0] - 0x80u) <= 0x3Fu &&  in next()
83 		    (t2 = text[1] - 0x80u) <= 0x3Fu &&  in next()
84 		    (t3 = text[2] - 0x80u) <= 0x3Fu))  in next()
89 	  text += 3;  in next()
99     return text;  in next()
103     return text;  in next()
107   prev (const uint8_t *text,  in prev()
112     const uint8_t *end = text--;  in prev()
113     while (start < text && (*text & 0xc0) == 0x80 && end - text < 4)  in prev()
114       text--;  in prev()
116     if (likely (next (text, end, unicode, replacement) == end))  in prev()
117       return text;  in prev()
124   strlen (const uint8_t *text)  in strlen()
126     return ::strlen ((const char *) text);  in strlen()
136   next (const uint16_t *text,  in next()
141     hb_codepoint_t c = *text++;  in next()
146       return text;  in next()
149     if (likely (c <= 0xDBFFu && text < end))  in next()
152       hb_codepoint_t l = *text;  in next()
157 	 text++;  in next()
158 	 return text;  in next()
164     return text;  in next()
168   prev (const uint16_t *text,  in prev()
173     hb_codepoint_t c = *--text;  in prev()
178       return text;  in prev()
181     if (likely (c >= 0xDC00u && start < text))  in prev()
184       hb_codepoint_t h = text[-1];  in prev()
189         text--;  in prev()
190         return text;  in prev()
196     return text;  in prev()
201   strlen (const uint16_t *text)  in strlen()
204     while (*text++) l++;  in strlen()
216   next (const uint32_t *text,  in next()
221     hb_codepoint_t c = *unicode = *text++;  in next()
224     return text;  in next()
228   prev (const uint32_t *text,  in prev()
233     hb_codepoint_t c = *unicode = *--text;  in prev()
236     return text;  in prev()
240   strlen (const uint32_t *text)  in strlen()
243     while (*text++) l++;  in strlen()
254   next (const uint8_t *text,  in next()
259     *unicode = *text++;  in next()
260     return text;  in next()
264   prev (const uint8_t *text,  in prev()
269     *unicode = *--text;  in prev()
270     return text;  in prev()
274   strlen (const uint8_t *text)  in strlen()
277     while (*text++) l++;  in strlen()