WishList


+ DATE & TIME: An /D switch to display only the date/time, but don't

loop, don't even display the prompt.



+ time.c: parsetime(): Make this function really _parse_ the time, but

not setting the DOS time. This would make it available for other

uses in the future.



+ All these number scanning loops could be replaced strtol() or a self-made

function.



+ PROMPT: expansion of environment variables



+ COMMAND definitely requires a getopt()-like function and/or some

	command line scanning functions. Every internal command

	performs its own scanning with its own rules, that's bad.

	Those functions could include (wild guess):

		struct ScannerContext {

			char *line;

			char *currp;	/* points to the remaining unchanged line */

			char *optArgument;

			char *optNextCharacter;	/* != NULL where to read nxt opt from */

		};



		struct ScannerContext sc;

		int opt;

		char *p;



		void scInit(&sc, rest);

		do {

			while((opt = scOption(&sc)) != EOF) {

				printf("Next option: %c", opt);

				if(sc.optArgument)

					printf(" with argument: '%s'", sc.optArgument);

				putchar('\n');

			}



			while((p = scToken(&sc)) != NULL) {

				printf("Next non-option argument: '%s'\n", p);

			}

		} while(!scEOF(&sc));



		scEOF(sc) := *sc.currp != 0;



		Because only few internal commands break up all their command

		line, the main(argc, argv)-style would not work efficiently.



		Or just some functions th‘t:

		1) skip numerous whitespaces

		2) skip one word honoring quotes and options, e.g.

			skipword("word/o") word return a poi to '/'

		3) scanning option strings and its arguments

		4) check if the next word is a given one (case-insentive

			match of a string and check for a word boundary behind it)
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