From 182a6d99fd550e2106298a19b542bdf940621ed1 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Thu, 24 Nov 2016 00:13:10 +0900
Subject: [PATCH] [ncurses6] Support italics

---
 src/ansi.go        | 12 +++++++-----
 src/tui/ncurses.go |  3 ++-
 src/tui/tcell.go   |  1 +
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/ansi.go b/src/ansi.go
index 427f7f4c..f8fe56a1 100644
--- a/src/ansi.go
+++ b/src/ansi.go
@@ -143,15 +143,17 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 				case 49:
 					state.bg = -1
 				case 1:
-					state.attr = tui.Bold
+					state.attr = state.attr | tui.Bold
 				case 2:
-					state.attr = tui.Dim
+					state.attr = state.attr | tui.Dim
+				case 3:
+					state.attr = state.attr | tui.Italic
 				case 4:
-					state.attr = tui.Underline
+					state.attr = state.attr | tui.Underline
 				case 5:
-					state.attr = tui.Blink
+					state.attr = state.attr | tui.Blink
 				case 7:
-					state.attr = tui.Reverse
+					state.attr = state.attr | tui.Reverse
 				case 0:
 					init()
 				default:
diff --git a/src/tui/ncurses.go b/src/tui/ncurses.go
index ac75513a..6e9ddb41 100644
--- a/src/tui/ncurses.go
+++ b/src/tui/ncurses.go
@@ -30,7 +30,7 @@ import (
 )
 
 type ColorPair int16
-type Attr C.int
+type Attr C.uint
 type WindowImpl C.WINDOW
 
 const (
@@ -39,6 +39,7 @@ const (
 	Blink          = C.A_BLINK
 	Reverse        = C.A_REVERSE
 	Underline      = C.A_UNDERLINE
+	Italic         = C.A_VERTICAL << 1 // FIXME
 )
 
 const (
diff --git a/src/tui/tcell.go b/src/tui/tcell.go
index efa112a9..3fe1161d 100644
--- a/src/tui/tcell.go
+++ b/src/tui/tcell.go
@@ -48,6 +48,7 @@ const (
 	Blink          = Attr(tcell.AttrBlink)
 	Reverse        = Attr(tcell.AttrReverse)
 	Underline      = Attr(tcell.AttrUnderline)
+	Italic         = Attr(tcell.AttrNone) // Not supported
 )
 
 const (