From 650778580c74876ef5635398d6b1c490a6130194 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Mon, 9 Nov 2020 00:44:43 +0100
Subject: make BI (bold+italic) work

---
 tea.c | 51 +++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 45 insertions(+), 6 deletions(-)

diff --git a/tea.c b/tea.c
index 0865a35..5c60ce9 100644
--- a/tea.c
+++ b/tea.c
@@ -234,19 +234,44 @@ int main() {
 			read(ttyfd, &c, 1);
 			switch (c) {
 			case 'b':
-				if (bold) break;
+bold:
+				if (bold && italic) {
+					bold = false;
+					italic = false;
+					goto italic;
+				}
+				if (bold && !italic) goto roman;
 				addc('\\'); hide();
 				addc('f'); hide();
-				addc('B'); hide();
+				if (italic) {
+					addc('('); hide();
+					addc('B'); hide();
+					addc('I'); hide();
+				} else {
+					addc('B'); hide();
+				}
 				bold = true;
 				break;
+italic:
 			case 'i':
-				if (italic) break;
+				if (italic && bold) {
+					italic = false;
+					bold = false;
+					goto bold;
+				}
+				if (italic && !bold) goto roman;
 				addc('\\'); hide();
 				addc('f'); hide();
-				addc('I'); hide();
+				if (bold) {
+					addc('('); hide();
+					addc('B'); hide();
+					addc('I'); hide();
+				} else {
+					addc('I'); hide();
+				}
 				italic = true;
 				break;
+roman:
 			case 'r':
 			case ' ':
 				if (!bold && !italic) break;
@@ -283,6 +308,12 @@ int main() {
 					bold = false;
 				if (src[src_l] = 'I')
 					italic = false;
+				if (src[src_l] = 'R') {
+					if ((types[src_l-3] & BOLD) == BOLD)
+						bold = true;
+					if ((types[src_l-3] & ITALIC) == ITALIC)
+						italic = true;
+				}
 			}
 			while (types[src_l] == HIDDEN)
 				delc();
@@ -292,12 +323,20 @@ int main() {
 		default:
 			if (iscntrl(c)) break;
 			prn(CSI "0m");
+			types[src_l] &= ~BOLD;
+			types[src_l] &= ~ITALIC;
 			if (x == 1 && c == '.') dot = true;
 			addc(c);
 			if (x > w) breakline();
-			if (bold) prn(CSI "1m");
 			if (dot) prn(CSI "2m");
-			if (italic) prn(CSI "3m");
+			if (bold) {
+				prn(CSI "1m");
+				types[src_l] |= BOLD;
+			}
+			if (italic) {
+				prn(CSI "3m");
+				types[src_l] |= ITALIC;
+			}
 			prn("%c", c);
 			x++;
 			break;
-- 
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