From ef918c5aec86303dd4bf546fe68581d9fbf176f7 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Mon, 20 Apr 2020 23:57:51 -0700
Subject: [PATCH] Added support/comments for more escape sequences.

---
 Lua/lbtui.c    | 3 +++
 Python/btui.py | 5 ++++-
 btui.h         | 7 +++++++
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Lua/lbtui.c b/Lua/lbtui.c
index 44c8a58..a794113 100644
--- a/Lua/lbtui.c
+++ b/Lua/lbtui.c
@@ -423,6 +423,9 @@ static struct {
     {"bg_cyan",              BTUI_BG_NORMAL},
     {"bg_white",             BTUI_BG_NORMAL},
     {"bg_normal",            BTUI_BG_NORMAL},
+    {"framed",               BTUI_NO_FRAMED_OR_ENCIRCLED},
+    {"encircled",            BTUI_NO_FRAMED_OR_ENCIRCLED},
+    {"overlined",            BTUI_NO_OVERLINED},
     {NULL,                   0}
 };
 
diff --git a/Python/btui.py b/Python/btui.py
index d940e58..a574bcc 100644
--- a/Python/btui.py
+++ b/Python/btui.py
@@ -98,7 +98,10 @@ BTUI_INVERSE_ATTRS = {
     "bg_cyan":              attr('BTUI_BG_NORMAL'),
     "bg_white":             attr('BTUI_BG_NORMAL'),
     "bg_normal":            attr('BTUI_BG_NORMAL'),
-};
+    "framed":               attr('BTUI_NO_FRAMED_OR_ENCIRCLED'),
+    "encircled":            attr('BTUI_NO_FRAMED_OR_ENCIRCLED'),
+    "overlined":            attr('BTUI_NO_OVERLINED'),
+}
 
 
 class BTUI:
diff --git a/btui.h b/btui.h
index c2cbb8b..e8f2aff 100644
--- a/btui.h
+++ b/btui.h
@@ -111,12 +111,14 @@ const attr_t BTUI_BLINK_FAST           = 1ul << 6;
 const attr_t BTUI_REVERSE              = 1ul << 7;
 const attr_t BTUI_CONCEAL              = 1ul << 8;
 const attr_t BTUI_STRIKETHROUGH        = 1ul << 9;
+// 10-19: alternative fonts
 const attr_t BTUI_FRAKTUR              = 1ul << 20;
 const attr_t BTUI_DOUBLE_UNDERLINE     = 1ul << 21;
 const attr_t BTUI_NO_BOLD_OR_FAINT     = 1ul << 22;
 const attr_t BTUI_NO_ITALIC_OR_FRAKTUR = 1ul << 23;
 const attr_t BTUI_NO_UNDERLINE         = 1ul << 24;
 const attr_t BTUI_NO_BLINK             = 1ul << 25;
+// 26: reserved
 const attr_t BTUI_NO_REVERSE           = 1ul << 27;
 const attr_t BTUI_NO_CONCEAL           = 1ul << 28;
 const attr_t BTUI_NO_STRIKETHROUGH     = 1ul << 29;
@@ -140,9 +142,14 @@ const attr_t BTUI_BG_CYAN              = 1ul << 46;
 const attr_t BTUI_BG_WHITE             = 1ul << 47;
 // 48: 256/24bit color
 const attr_t BTUI_BG_NORMAL            = 1ul << 49;
+// 50: Inverse of 26 (reserved)
 const attr_t BTUI_FRAMED               = 1ul << 51;
 const attr_t BTUI_ENCIRCLED            = 1ul << 52;
 const attr_t BTUI_OVERLINED            = 1ul << 53;
+const attr_t BTUI_NO_FRAMED_OR_ENCIRCLED = 1ul << 54;
+const attr_t BTUI_NO_OVERLINED        = 1ul << 55;
+// 56-59: reserved
+// 60-65: Ideogram stuff
 
 
 // BTUI object: