add colour to ls

lib/ansi-colour.h

@@ -0,0 +1,80 @@
+/*
+ * This is free and unencumbered software released into the public domain.
+ *
+ * For more information, please refer to <https://unlicense.org>
+ */
+
+//https://gist.github.com/RabaDabaDoba/145049536f815903c79944599c6f952a
+
+//Regular text
+#define BLK "\e[0;30m"
+#define RED "\e[0;31m"
+#define GRN "\e[0;32m"
+#define YEL "\e[0;33m"
+#define BLU "\e[0;34m"
+#define MAG "\e[0;35m"
+#define CYN "\e[0;36m"
+#define WHT "\e[0;37m"
+
+//Regular bold text
+#define BBLK "\e[1;30m"
+#define BRED "\e[1;31m"
+#define BGRN "\e[1;32m"
+#define BYEL "\e[1;33m"
+#define BBLU "\e[1;34m"
+#define BMAG "\e[1;35m"
+#define BCYN "\e[1;36m"
+#define BWHT "\e[1;37m"
+
+//Regular underline text
+#define UBLK "\e[4;30m"
+#define URED "\e[4;31m"
+#define UGRN "\e[4;32m"
+#define UYEL "\e[4;33m"
+#define UBLU "\e[4;34m"
+#define UMAG "\e[4;35m"
+#define UCYN "\e[4;36m"
+#define UWHT "\e[4;37m"
+
+//Regular background
+#define BLKB "\e[40m"
+#define REDB "\e[41m"
+#define GRNB "\e[42m"
+#define YELB "\e[43m"
+#define BLUB "\e[44m"
+#define MAGB "\e[45m"
+#define CYNB "\e[46m"
+#define WHTB "\e[47m"
+
+//High intensty background 
+#define BLKHB "\e[0;100m"
+#define REDHB "\e[0;101m"
+#define GRNHB "\e[0;102m"
+#define YELHB "\e[0;103m"
+#define BLUHB "\e[0;104m"
+#define MAGHB "\e[0;105m"
+#define CYNHB "\e[0;106m"
+#define WHTHB "\e[0;107m"
+
+//High intensty text
+#define HBLK "\e[0;90m"
+#define HRED "\e[0;91m"
+#define HGRN "\e[0;92m"
+#define HYEL "\e[0;93m"
+#define HBLU "\e[0;94m"
+#define HMAG "\e[0;95m"
+#define HCYN "\e[0;96m"
+#define HWHT "\e[0;97m"
+
+//Bold high intensity text
+#define BHBLK "\e[1;90m"
+#define BHRED "\e[1;91m"
+#define BHGRN "\e[1;92m"
+#define BHYEL "\e[1;93m"
+#define BHBLU "\e[1;94m"
+#define BHMAG "\e[1;95m"
+#define BHCYN "\e[1;96m"
+#define BHWHT "\e[1;97m"
+
+//Reset
+#define reset "\e[0m"

src/ls.c

@@ -6,6 +6,10 @@
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "ansi-colour.h"
 
 /*
 ls - print all files and directories in working directory
@@ -26,6 +30,19 @@ int cmp(const void *a, const void *b){
     return strcmp(*(const char **)a, *(const char **)b);
 }
 
+//https://stackoverflow.com/a/4553076
+bool isRegularFile(const char *path)
+{
+    struct stat path_stat;
+    lstat(path, &path_stat);
+    return S_ISREG(path_stat.st_mode);
+}
+
+int printBool(bool cond) {
+	printf("%s\n", cond ? "true" : "false");
+	return 0;
+}
+
 //lots o' code ~~stolen~~ borrowed from https://pubs.opengroup.org/onlinepubs/9699919799/functions/readdir.html
 int main(int argc, char** argv) {
 	bool colour = false;
@@ -83,10 +100,26 @@ int main(int argc, char** argv) {
 	do {
 		char* dirname = dp->d_name;
 		if (!startsWithChar(dirname, '.') || showdot == true) {
-			len += 1 + strlen(dirname) + strlen(" ");
-			out = (char*) realloc(out, len);
-			strcat(out, dirname);
-			strcat(out, " ");
+			if (colour == false) {
+				len += 1 + strlen(dirname) + strlen(" ");
+				out = (char*) realloc(out, len);
+				strcat(out, dirname);
+				strcat(out, " ");
+			} else {
+				if (isRegularFile(dirname) == true) {
+					len += 1 + strlen(dirname) + strlen(" ");
+					out = (char*) realloc(out, len);
+					strcat(out, dirname);
+					strcat(out, " ");
+				} else {
+					len += 1 + strlen(dirname) + strlen(" ") + strlen(BLU) + strlen(reset);
+					out = (char*) realloc(out, len);
+					strcat(out, BLU);
+					strcat(out, dirname);
+					strcat(out, reset);
+					strcat(out, " ");
+				}
+			}
 		}
 	} while ((dp = readdir(dirp)) != NULL);
 	char *word, *words[strlen(out)/2+1];