[browser] Implemented endless command-oriented UI

1 files changed, 63 insertions, 22 deletions

diff --git a/browser.c b/browser.c
index 22d4b90..84d3b17 100644
--- a/browser.c
+++ b/browser.c
@@ -93,6 +93,59 @@ void renderPage(const sds page, const struct md_syntax* syntax, int* *matches, i
 	sdsfree(toPrint);
 }
 
+#define MAX_LEN_COMMAND 16
+#define COMMAND_FORMAT ": %16s"
+
+int handleCLI(sds authority, sds *address, const sds page, int* *anchorIndecies, int *anchorCount) {
+	// Get a line
+	char line[1024];
+	fgets(line, 1024, stdin);
+
+	// Nothing
+	if (line[0] == '\0') {
+		printf("Please enter a valid command!\n");
+		return 0;
+	}
+
+	// Number or URL
+	if (line[0] != ':') {
+		// Index of anchor
+		if (strchr(line, '/') == NULL) {
+			int gotoIndex = 0;
+			sscanf(line, "%d", &gotoIndex);
+
+			if (gotoIndex < 0 || gotoIndex >= *anchorCount) {
+				printf("Invalid anchor index!\n");
+				return 0;
+			}
+
+			char* newplace = strchr(page + (*anchorIndecies)[gotoIndex], '(') + 1;
+			sdsfree(*address);
+			*address = sdscatlen(sdsdup(authority), newplace, strchr(newplace, ')') - newplace);
+		}
+		// New address
+		else {
+			sdsfree(*address);
+			*address = sdsnewlen(line, strlen(line)-1 /* skip newline */);
+		}
+		return 0;
+	}
+
+	// Special command
+	
+	// Get command name and it's arguments
+	// Currently no command takes arguments
+	char name[MAX_LEN_COMMAND+1] = { '\0' };
+	int argsAssigned = sscanf(line, COMMAND_FORMAT, name);
+
+	if (streq(name, "quit") || streq(name, "exit")) {
+		return 1;
+	}
+
+	printf("Invalid command %s!\n", name);
+	return 0;
+}
+
 int main(int argc, char* argv[]) {
 	/*
 	 * Compile regexes used in rendering
@@ -108,45 +161,33 @@ int main(int argc, char* argv[]) {
 	 */
 
 	sds page;
-	sds address = sdsnew(argv[1]);
+	sds authority = sdsnew(argv[1]);
+	sds address = sdsdup(authority);
 
 	int* anchorIndecies = NULL;
 	int anchorCount = 0;
 
-	int gotoIndex = 0;
-	int count = 0;
-
-	while (count < 2) {
+	int stopProgram = 0;
+	while (!stopProgram) {
 		/*
 		 * Get the page
 		 */
 
+		printf("\033[30;107m%s\033[0m\n", address);
 		page = get_page("127.0.0.1", "8080", address);
 		renderPage(page, &md, &anchorIndecies, &anchorCount);
 
 		/*
 		 * Handle user input
 		 */
-
-		scanf("%d", &gotoIndex);
-
-		if (gotoIndex < anchorCount) {
-			char* newplace = strchr(page + anchorIndecies[gotoIndex], '(') + 1;
-			sdsfree(address);
-			address = sdscatlen(sdsnew(argv[1]), newplace, strchr(newplace, ')') - newplace);
-
-			free(anchorIndecies);
-			anchorCount = 0;
-		}
-		else {
-			printf("error\n");
-		}
-
+		stopProgram = handleCLI(authority, &address, page, &anchorIndecies, &anchorCount);
+		free(anchorIndecies);
+		anchorIndecies = NULL;
+		anchorCount = 0;
 		sdsfree(page);
-		count++;
 	}
 
 	regfree(&md.anchor);
-	free(anchorIndecies);
 	sdsfree(address);
+	sdsfree(authority);
 }