gmni

commit d5421dd9e0039b128be37d7b2925932633a31c90
parent 4f04fb45e267cb2e6a189b60e83d703b85104c72
Author: Ondřej Fiala <temp.xanomes@volny.cz>
Date:   Sat,  5 Feb 2022 12:44:52 +0100

gmnlm: strip control sequences from plaintext rendering

Diffstat:
M
src/gmnlm.c
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gmnlm.c b/src/gmnlm.c
@@ -1012,7 +1012,6 @@ repeat:
 static bool
 display_plaintext(struct browser *browser, struct gemini_response *resp)
 {
-	// TODO: Strip ANSI escape sequences
 	struct winsize ws;
 	int row = 0, col = 0;
 	ioctl(fileno(browser->tty), TIOCGWINSZ, &ws);
@@ -1027,6 +1026,11 @@ display_plaintext(struct browser *browser, struct gemini_response *resp)
 		if (n < 0) {
 			n = 0;
 		}
+		for (int i = 0; i < n; i++) {
+			if (iscntrl(buf[i]) && (buf[i] < '\t' || buf[i] > '\v')) {
+				buf[i] = '.';
+			}
+		}
 		ssize_t w = 0;
 		while (w < (ssize_t)n) {
 			ssize_t x = fwrite(&buf[w], 1, n - w, browser->tty);