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#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
const char *types[11] = { "di", "ln", "so", "pi", "ex", "bd", "cd", "su", "sg",
"tw", "ow" };
const char col[8] = "abcdefgh";
int tolscolors(char *);
int tols_colors(char *);
void usage(void);
char numtocol(char, bool);
int
main(int argc, char **argv)
{
if (argc != 2)
usage();
if (strchr(argv[1], '='))
return tolscolors(argv[1]);
else
return tols_colors(argv[1]);
/* NOTREACHED */
return 0;
}
int
tolscolors(char *dircolor)
{
char *color, *ent, *buf, *val, *val2;
char out[22] = "xxxxxxxxxxxxxxxxxxxxxx";
bool bold = false;
while ((ent = buf = strsep(&dircolor, ":")) != NULL) {
for (int i = 0; i < 11; i++) {
if (strncmp(ent, types[i], strlen(types[i])) == 0) {
bold = false;
while ((val = strsep(&buf, "=")) != NULL) {
while ((val2 = strsep(&val, ";")) !=
NULL) {
if (strcmp(val2, "01") == 0) {
bold = true;
} else if (val2[0] == '3') {
out[2 * i] = numtocol(
val2[1], bold);
} else if (val2[0] == '4') {
out[2 * i + 1] =
numtocol(
val2[1], NULL);
}
}
}
}
}
}
printf("%s\n", out);
return 0;
}
char
numtocol(char c, bool bold)
{
char buf = col[strtol(&c, NULL, 10)];
if (bold)
return toupper(buf);
else
return buf;
}
int
tols_colors(char *lscolors)
{
char *ls_out;
strcpy(ls_out, "");
for (int i = 0; i < 11; i++) {
if (lscolors[2 * i] == 'x' && lscolors[2 * i + 1] == 'x')
continue;
sprintf(ls_out + strlen(ls_out), "%s=", types[i]);
if (isupper(lscolors[2 * i]))
sprintf(ls_out + strlen(ls_out), "01;");
if (tolower(lscolors[2 * i]) == 'x')
sprintf(ls_out + strlen(ls_out), "00");
else if (tolower(lscolors[2 * i] != 'x'))
sprintf(ls_out + strlen(ls_out), "3%i", (int)(strchr(col, tolower(lscolors[2 * i])) - col));
if (tolower(lscolors[2 * i + 1]) != 'x')
sprintf(ls_out + strlen(ls_out), ";4%i", (int)(strchr(col, tolower(lscolors[2 * i])) - col));
sprintf(ls_out + strlen(ls_out), ":");
}
printf("%s\n", ls_out);
return 0;
}
void
usage(void)
{
(void)fprintf(stderr, "%s\n", "usage: lscolors format_code ");
exit(EX_USAGE);
}
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