add undercurl patch

1 files changed, 3 insertions, 0 deletions

diff --git a/st.h b/st.h
index cb9aa30..2e4ecd9 100644
--- a/st.h
+++ b/st.h
@@ -39,6 +39,7 @@ enum glyph_attribute {
 	ATTR_SELECTED   = 1 << 12,
         ATTR_BOXDRAW    = 1 << 13,
 	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
+	ATTR_DIRTYUNDERLINE = 1 << 15,
 };
 
 enum selection_mode {
@@ -70,6 +71,8 @@ typedef struct {
 	ushort mode;      /* attribute flags */
 	uint32_t fg;      /* foreground  */
 	uint32_t bg;      /* background  */
+	int ustyle;	  /* underline style */
+	int ucolor[3];    /* underline color */
 } Glyph;
 
 typedef Glyph *Line;