set and unset dirty flag as appropriate on undo/redo

1 files changed, 4 insertions, 2 deletions

diff --git a/txt.h b/txt.h
index 148369e..f17728a 100644
--- a/txt.h
+++ b/txt.h
@@ -22,7 +22,10 @@ typedef struct {
 	u32 n, c;
 } TxtBuf;
 
-typedef DYNARR(TxtPiece)  TxtPieceTbl;
+typedef struct {
+	DYNARR(TxtPiece);
+	int dirty;
+} TxtPieceTbl;
 
 typedef struct {
 	struct Txt *t;
@@ -40,7 +43,6 @@ typedef struct Txt {
 	TxtHist hist;
 	TxtBuf buf[2];
 	u32 len;
-	int dirty;
 } Txt;
 
 /* text buffer manipulation */