303 static bool escape_passthrough(unsigned char c, char **dst, char *end)  in escape_passthrough()  argument
308 		*out = c;  in escape_passthrough()
313 static bool escape_space(unsigned char c, char **dst, char *end)  in escape_space()  argument
318 	switch (c) {  in escape_space()
349 static bool escape_special(unsigned char c, char **dst, char *end)  in escape_special()  argument
354 	switch (c) {  in escape_special()
379 static bool escape_null(unsigned char c, char **dst, char *end)  in escape_null()  argument
383 	if (c)  in escape_null()
397 static bool escape_octal(unsigned char c, char **dst, char *end)  in escape_octal()  argument
405 		*out = ((c >> 6) & 0x07) + '0';  in escape_octal()
408 		*out = ((c >> 3) & 0x07) + '0';  in escape_octal()
411 		*out = ((c >> 0) & 0x07) + '0';  in escape_octal()
418 static bool escape_hex(unsigned char c, char **dst, char *end)  in escape_hex()  argument
429 		*out = hex_asc_hi(c);  in escape_hex()
432 		*out = hex_asc_lo(c);  in escape_hex()
505 		unsigned char c = *src++;  in string_escape_mem()  local
518 		if ((flags & ESCAPE_NP && isprint(c)) ||  in string_escape_mem()
519 		    (is_dict && !strchr(only, c))) {  in string_escape_mem()
522 			if (flags & ESCAPE_SPACE && escape_space(c, &p, end))  in string_escape_mem()
525 			if (flags & ESCAPE_SPECIAL && escape_special(c, &p, end))  in string_escape_mem()
528 			if (flags & ESCAPE_NULL && escape_null(c, &p, end))  in string_escape_mem()
532 			if (flags & ESCAPE_OCTAL && escape_octal(c, &p, end))  in string_escape_mem()
535 			if (flags & ESCAPE_HEX && escape_hex(c, &p, end))  in string_escape_mem()
539 		escape_passthrough(c, &p, end);  in string_escape_mem()
553 		unsigned char c = *src++;  in string_escape_mem_ascii()  local
555 		if (!isprint(c) || !isascii(c) || c == '"' || c == '\\')  in string_escape_mem_ascii()
556 			escape_hex(c, &p, end);  in string_escape_mem_ascii()
558 			escape_passthrough(c, &p, end);  in string_escape_mem_ascii()