297 static bool escape_passthrough(unsigned char c, char **dst, char *end)  in escape_passthrough()  argument
302 		*out = c;  in escape_passthrough()
307 static bool escape_space(unsigned char c, char **dst, char *end)  in escape_space()  argument
312 	switch (c) {  in escape_space()
343 static bool escape_special(unsigned char c, char **dst, char *end)  in escape_special()  argument
348 	switch (c) {  in escape_special()
373 static bool escape_null(unsigned char c, char **dst, char *end)  in escape_null()  argument
377 	if (c)  in escape_null()
391 static bool escape_octal(unsigned char c, char **dst, char *end)  in escape_octal()  argument
399 		*out = ((c >> 6) & 0x07) + '0';  in escape_octal()
402 		*out = ((c >> 3) & 0x07) + '0';  in escape_octal()
405 		*out = ((c >> 0) & 0x07) + '0';  in escape_octal()
412 static bool escape_hex(unsigned char c, char **dst, char *end)  in escape_hex()  argument
423 		*out = hex_asc_hi(c);  in escape_hex()
426 		*out = hex_asc_lo(c);  in escape_hex()
495 		unsigned char c = *src++;  in string_escape_mem()  local
508 		if ((flags & ESCAPE_NP && isprint(c)) ||  in string_escape_mem()
509 		    (is_dict && !strchr(esc, c))) {  in string_escape_mem()
512 			if (flags & ESCAPE_SPACE && escape_space(c, &p, end))  in string_escape_mem()
515 			if (flags & ESCAPE_SPECIAL && escape_special(c, &p, end))  in string_escape_mem()
518 			if (flags & ESCAPE_NULL && escape_null(c, &p, end))  in string_escape_mem()
522 			if (flags & ESCAPE_OCTAL && escape_octal(c, &p, end))  in string_escape_mem()
525 			if (flags & ESCAPE_HEX && escape_hex(c, &p, end))  in string_escape_mem()
529 		escape_passthrough(c, &p, end);  in string_escape_mem()