shithub: rio

Download patch

ref: 47176077d8ba8fdedafc56c1f02c99ddba48d463
parent: a9e909fe0e23030d2d682e084b14df34bb52f55d
author: glenda <glenda@cirno>
date: Fri Mar 21 23:51:56 EDT 2025 

refactor history


--- a/wind.c
+++ b/wind.c
@@ -21,33 +21,26 @@
 	if(nr <= 0)
 		return;
 		
-	s = runemalloc(nr);
-	runemove(s, r, nr);
-	
 	if(w->nhistory > 0 && nr == w->historylens[0] && 
-	   memcmp(s, w->history[0], nr*sizeof(Rune)) == 0) {
-		free(s);
+	   memcmp(r, w->history[0], nr*sizeof(Rune)) == 0)
 		return;
-	}
 	
+	s = runemalloc(nr);
+	runemove(s, r, nr);
+	
 	if(w->nhistory == w->maxhistory) {
 		free(w->history[w->maxhistory-1]);
-		w->nhistory--;
+	} else {
+		w->nhistory++;
 	}
 	
-	if(w->history == nil) {
-		w->history = emalloc(w->maxhistory * sizeof(Rune*));
-		w->historylens = emalloc(w->maxhistory * sizeof(int));
-	}
-		
-	for(i = w->nhistory; i > 0; i--) {
+	for(i = w->nhistory-1; i > 0; i--) {
 		w->history[i] = w->history[i-1];
 		w->historylens[i] = w->historylens[i-1];
 	}
-		
+	
 	w->history[0] = s;
 	w->historylens[0] = nr;
-	w->nhistory++;
 	w->histpos = -1;
 }
 
@@ -1418,8 +1411,8 @@
 	Rectangle r;
 
 	w = emalloc(sizeof(Window));
-	w->history = nil;
-	w->historylens = nil;
+	w->history = emalloc(w->maxhistory * sizeof(Rune*));
+	w->historylens = emalloc(w->maxhistory * sizeof(int));
 	w->nhistory = 0;
 	w->maxhistory = 100;
 	w->histpos = -1;