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mp
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help.c
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C/C++ Source or Header
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1991-04-18
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75 lines
/**************************************************************************
* help.c: Functions for giving help to the user.
* Part of MP, the MIDI Playground.
*
* Author: Daniel Barrett
* Version: See the file "version.h".
* Copyright: None! This program is in the Public Domain.
* Please share it with others.
***************************************************************************/
#include "mp.h"
#include "version.h"
/* Print a detailed help message. */
void Help(char *progName)
{
FILE *fp = stderr;
fprintf(fp, "MIDI Playground (%s), version %s, by Daniel Barrett."
" 100%% Public Domain!\n",
progName, VERSION);
fprintf(fp,
"Usage: %s -%c<FORMAT> -%c<FORMAT> [-%c infile] [-%c outfile]\n",
progName,
OPT_INPUT, OPT_OUTPUT, OPT_INFILE, OPT_OUTFILE);
fprintf(fp,
"The program quits at end-of-file, or when ^C is pressed.\n");
fprintf(fp, "\nThe flags may appear in any order:\n");
fprintf(fp, "\t-%c\tSpecify the input format. [MANDATORY]\n",
OPT_INPUT);
fprintf(fp, "\t-%c\tSpecify the output format. [MANDATORY]\n",
OPT_OUTPUT);
fprintf(fp, "\t\t\"-%c\" and \"-%c\" must EACH be followed by",
OPT_INPUT, OPT_OUTPUT);
fprintf(fp, " exactly one of:\n");
fprintf(fp, "\t\t\t%c\tText (readable by humans).\n", OPT_TEXT);
fprintf(fp, "\t\t\t%c\tBinary data (for files).\n", OPT_BINARY);
fprintf(fp, "\t\t\t%c\tMIDI (using MIDI port).\n", OPT_MIDI);
fprintf(fp, "\t-%c\tGet data from this file. [Default=keyboard]\n",
OPT_INFILE);
fprintf(fp, "\t-%c\tPut data into this file. [Default=screen]\n",
OPT_OUTFILE);
fprintf(fp, "\nExamples:\n");
fprintf(fp, "\t%s -%c%c -%c%c -%c data\t%s\n",
progName,
OPT_INPUT, OPT_MIDI, OPT_OUTPUT, OPT_BINARY,
OPT_OUTFILE,
"Read MIDI & put it into binary file \"data\".");
fprintf(fp,
"\t%s -%c%c -%c%c\t\tRead typed text, send to MIDI (fun!).\n",
progName,
OPT_INPUT, OPT_TEXT, OPT_OUTPUT, OPT_MIDI);
fprintf(fp, "\n\"%s -%c%c\" understands decimal, octal, hex,",
progName, OPT_INPUT, OPT_TEXT);
fprintf(fp, " binary, characters, and strings.\n");
fprintf(fp, "For details, type %c while in \"-%c%c\" mode.\n",
HELP_SYMBOL, OPT_INPUT, OPT_TEXT);
}
/* Tell the user how to get more help. */
void BegForUsage(char *progName)
{
fprintf(stderr, "Please type \"%s ?\" for instructions.\n",
progName);
}