Don't rely on implementation details of bufio

Previously we modified internal fields of bufio::memstream to make it
readable, which is bad. This commit uses bufio::fixed to read from a
strio::stream.

1 files changed, 12 insertions, 9 deletions

diff --git a/main.ha b/main.ha
index 42e7039..f66c67f 100644
--- a/main.ha
+++ b/main.ha
@@ -24,6 +24,7 @@ use fs;
 use os;
 use strconv;
 use strings;
+use strio;
 use time;
 use unix::poll;
 use unix::tty;
@@ -200,9 +201,9 @@ type state = enum {
 fn parse_srt(file: io::handle) []subtitle = {
 	let subtitles: []subtitle = [];
 	let current = subtitle { ... };
-	let content = bufio::dynamic(io::mode::RDWR);
+	let content = strio::dynamic();
 	defer io::close(&content)!;
-	io::writeall(&content, strings::toutf8("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<root>\n"))!;
+	fmt::fprint(&content, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<root>\n")!;
 	let state = state::INDEX;
 
 	for (let nr = 0; true; nr += 1) {
@@ -239,14 +240,16 @@ fn parse_srt(file: io::handle) []subtitle = {
 			state = state::TEXT;
 		case state::TEXT =>
 			if (len(line) > 0) {
-				io::writeall(&content, strings::toutf8(line))!;
-				io::writeall(&content, strings::toutf8("\n"))!;
+				fmt::fprintf(&content, "{}\n", line)!;
 				continue;
 			};
 
-			io::writeall(&content, strings::toutf8("</root>"))!;
-			content.pos = 0;
-			current.text = match (parse_text(&content)) {
+			fmt::fprint(&content, "</root>")!;
+			let buf = bufio::fixed(
+				strings::toutf8(strio::string(&content)),
+				io::mode::READ,
+			);
+			current.text = match (parse_text(&buf)) {
 			case let t: []text =>
 				yield t;
 			case let err: io::error =>
@@ -258,8 +261,8 @@ fn parse_srt(file: io::handle) []subtitle = {
 			append(subtitles, current);
 			current = subtitle { ... };
 
-			bufio::reset(&content);
-			io::writeall(&content, strings::toutf8("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<root>\n"))!;
+			strio::reset(&content);
+			fmt::fprint(&content, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<root>\n")!;
 
 			state = state::INDEX;
 		};