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Allow user to set start and end of unicode chars #196

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Allow user to set start and end of unicode chars #196

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e3eba2c
add ability for a user to use any unicode set
JamesOsborn-SE Oct 11, 2024
1bb10a7
fix check for enough letters between Minimum and Maximum unicode.
JamesOsborn-SE Oct 11, 2024
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20 changes: 19 additions & 1 deletion cmatrix.c
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,8 @@ void usage(void) {
printf(" -m: lambda mode\n");
printf(" -k: Characters change while scrolling. (Works without -o opt.)\n");
printf(" -t [tty]: Set tty to use\n");
printf(" -A [Unicode]: Set minimum Unicode (use 0x16A0 for runes)\n");
printf(" -Z [Unicode]: Set maximum Unicode (0x16FF for runes)\n");
}

void version(void) {
Expand Down Expand Up @@ -333,13 +335,15 @@ int main(int argc, char *argv[]) {
int changes = 0;
char *msg = "";
char *tty = NULL;
int userrandmin = 33;
int userhighnum = 123;

srand((unsigned) time(NULL));
setlocale(LC_ALL, "");

/* Many thanks to morph- ([email protected]) for this getopt patch */
opterr = 0;
while ((optchr = getopt(argc, argv, "abBcfhlLnrosmxkVM:u:C:t:")) != EOF) {
while ((optchr = getopt(argc, argv, "abBcfhlLnrosmxkVM:u:C:t:A:Z:")) != EOF) {
switch (optchr) {
case 's':
screensaver = 1;
Expand All @@ -355,6 +359,13 @@ int main(int argc, char *argv[]) {
case 'B':
bold = 2;
break;
case 'A':
if (optarg)
userrandmin = (int)strtol(optarg, NULL, 16);
break;
case 'Z':
userhighnum = (int)strtol(optarg, NULL, 16);
break;
case 'C':
if (!strcasecmp(optarg, "green")) {
mcolor = COLOR_GREEN;
Expand Down Expand Up @@ -444,6 +455,10 @@ int main(int argc, char *argv[]) {
setenv("TERM", "linux", 1);
#endif
}
if ((userrandmin!=33 || userhighnum!=123) && (userhighnum - userrandmin<1)) {
fprintf(stderr, "%d is not enough letters between Minimum and Maximum unicode.\n", userhighnum - userrandmin);
exit(EXIT_FAILURE);
}
if (tty) {
FILE *ftty = fopen(tty, "r+");
if (!ftty) {
Expand Down Expand Up @@ -532,6 +547,9 @@ if (console) {
} else if (console || xwindow) {
randmin = 166;
highnum = 217;
} else if (userrandmin!=33 || userhighnum!=123) {
randmin = userrandmin;
highnum = userhighnum;
} else {
randmin = 33;
highnum = 123;
Expand Down