Add support for providing full filename on command line

This fixes an issue I had using the tool with filename completion by allowing the user to provide the .mid extension when specifying the base filename. It will strip that off before processing.

Author: unwiredben

midi2tones.c

@@ -58,6 +58,7 @@
 *
 *     midi2tones chopin
 *
+*
 *  It will create a file in the same directory called "chopin.c" which contains
 *  the C-language statement to intiialize an array called "score" with the bytestream.
 *
@@ -72,6 +73,9 @@
 *  The <basefilename> is the base name, without an extension, for the input and
 *  output files. It can contain directory path information, or not.
 *
+*  If the <basefilename> provided by the user ends in .mid, that will be stripped off
+*  before being used.
+*
 *  The input file is <basefilename>.mid  The output filename(s)
 *  are the base file name with .c, .bin, and/or .log extensions.
 *
@@ -239,6 +243,7 @@
 * The MIT License (MIT)
 * Original work Copyright (c) 2011,2013,2015,2016, Len Shustek
 * Modified work Copyright (c) 2016, Scott Allen
+* Modified work Copyright (c) 2020, Ben Combee
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
@@ -325,8 +330,11 @@
 *     -Prevent unnecessary "note off" commands from being generated by delaying
 *      them until we see if a "note on" is generated before the next wait.
 *      Ported from MIDITONES V1.14
+* 17 October 2020, Ben Combee, V1.0.1
+*     -Support user providing full name of MIDI file on command line by stripping
+*      off the .mid suffix if provided
 */
-#define VERSION "1.0.0"
+#define VERSION "1.0.1"
 
 /*--------------------------------------------------------------------------------------------
 
@@ -1176,13 +1184,14 @@ int main (int argc, char *argv[]) {
    char *filebasename;
 #define MAXPATH 120
    char filename[MAXPATH];
+   int filenamelen;
    int tracknum;
    int earliest_tracknum;
    unsigned long earliest_time;
    int notes_skipped = 0;
    char *text;
 
-   printf ("MIDI2TONES V%s\n(C) 2011-2016 Len Shustek\n(C) 2016 Scott Allen\n", VERSION);
+   printf ("MIDI2TONES V%s\n(C) 2011-2016 Len Shustek\n(C) 2016 Scott Allen\n(C) 2020 Ben Combee", VERSION);
    if (argc == 1) {             /* no arguments */
       SayUsage (argv[0]);
       return 1;
@@ -1198,6 +1207,13 @@ int main (int argc, char *argv[]) {
    }
    filebasename = argv[argno];
 
+/* strip off trailing .mid if provided by user */
+
+   filenamelen = strlength(filebasename);
+   if (filenamelen > 4 && charcmp(filebasename + filenamelen - 4, ".mid")) {
+      filebasename[filenamelen - 4] = 0;
+   }
+
 /* if alternate output format, overide options with required values */
    if (alt_out) {
       num_tonegens = 1;