From 999b45b28c157418c20a9a8cd9219db6ce0beac7 Mon Sep 17 00:00:00 2001
From: Gokul Soumya
Date: Sat, 9 Jul 2022 03:35:06 +0530
Subject: Support different kinds of underline rendering

Adds four new  modifiers that can be used in themes:

- undercurled
- underdashed
- underdotted
- double-underline
---
 helix-tui/src/backend/crossterm.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'helix-tui')

diff --git a/helix-tui/src/backend/crossterm.rs b/helix-tui/src/backend/crossterm.rs
index eff098b3..252036f3 100644
--- a/helix-tui/src/backend/crossterm.rs
+++ b/helix-tui/src/backend/crossterm.rs
@@ -153,7 +153,7 @@ impl ModifierDiff {
         if removed.contains(Modifier::ITALIC) {
             map_error(queue!(w, SetAttribute(CAttribute::NoItalic)))?;
         }
-        if removed.contains(Modifier::UNDERLINED) {
+        if removed.intersects(Modifier::ANY_UNDERLINE) {
             map_error(queue!(w, SetAttribute(CAttribute::NoUnderline)))?;
         }
         if removed.contains(Modifier::DIM) {
@@ -179,6 +179,18 @@ impl ModifierDiff {
         if added.contains(Modifier::UNDERLINED) {
             map_error(queue!(w, SetAttribute(CAttribute::Underlined)))?;
         }
+        if added.contains(Modifier::UNDERCURLED) {
+            map_error(queue!(w, SetAttribute(CAttribute::Undercurled)))?;
+        }
+        if added.contains(Modifier::UNDERDOTTED) {
+            map_error(queue!(w, SetAttribute(CAttribute::Underdotted)))?;
+        }
+        if added.contains(Modifier::UNDERDASHED) {
+            map_error(queue!(w, SetAttribute(CAttribute::Underdashed)))?;
+        }
+        if added.contains(Modifier::DOUBLE_UNDERLINED) {
+            map_error(queue!(w, SetAttribute(CAttribute::DoubleUnderlined)))?;
+        }
         if added.contains(Modifier::DIM) {
             map_error(queue!(w, SetAttribute(CAttribute::Dim)))?;
         }
-- 
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