u-boot/common/cli_hush_upstream.c

560 	 * possibly empty one: word"", wo''rd etc. */
1776 /* Inlined for common case of non-empty buffer.
1782 	/* Buffer empty */
1907  * except for handlers set to '' (empty string).
3288 /* Valid only if we know o_string is not empty */
3531 		/* We have empty slot at list[n], reuse without growth */
3534 		debug_printf_list("list[%d]=%d string_start=%d (empty slot)\n",
4584 			{ /* empty block to pair "if ... else" */ }
4979 	 * Typically it's empty, but for function defs,
5076 	/* empty ()/{} or parse error? */
5542 			 * the result will be empty).
5589 				/* The pattern can't be empty.
6538  * 1 - ended with IFS char, else 0 (this includes case of empty str).
6587 		/* Case "v=' a'; echo ''$v": we do need to finalize empty word: */
6983 	/* Null pattern never matches, including if "var" is empty */
7298 			/* If expansion will be empty, do not even evaluate len */
7494 		 * expand to nothing (not even an empty string),
7511 			cant_be_null |= first_ch; /* do it for "$@" _now_, when we know it's not empty */
7517 						/* this argv[] is not empty and not last:
7636 	if (output->length == o_get_last_ptr(output, n) /* expansion is empty */
7841 	/* Reset all sigs to default except ones with empty traps */
7846 			continue; /* empty trap: has to remain SIG_IGN */
7847 		/* sig has non-empty trap, reset it: */
7885 		pp = &argv[3]; /* used as pointer to empty environment */
8017 	/* Why we need empty flag?
8019 	 * empty command in `` should still set $? to 0.
8023 	bool empty = 1;
8051 				/* This stream isn't empty */
8052 				empty = 0;
8055 			if (!pipe_list && empty)
8072 		empty = 0;
10019 		/* If someone gives us an empty string: `cmd with empty output` */
11341 			/* -c 'script' (no params): prevent empty $0 */
11770  * if it has non-empty trap:
11776  * if it has non-empty trap:
11780  * if it has non-empty trap: