From 7ca3295e318f797d79b84f9650baa95d8c8d7ad6 Mon Sep 17 00:00:00 2001
From: Uko Kokņevičs
Date: Sun, 25 Feb 2024 04:14:45 +0200
Subject: Don't bother saving buffers like *scratch*

---
 src/Buffer.zig | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

(limited to 'src/Buffer.zig')

diff --git a/src/Buffer.zig b/src/Buffer.zig
index 555ad1d..ce27d95 100644
--- a/src/Buffer.zig
+++ b/src/Buffer.zig
@@ -25,7 +25,7 @@ rx: usize,
 rowoff: usize,
 coloff: usize,
 
-dirty: bool,
+edited: bool,
 
 config: Config,
 syntax: ?Syntax,
@@ -52,7 +52,7 @@ pub fn init(allocator: Allocator, name: []const u8) !Buffer {
         .rowoff = 0,
         .coloff = 0,
 
-        .dirty = false,
+        .edited = false,
 
         .config = config,
         .syntax = null,
@@ -161,14 +161,14 @@ pub fn deleteChar(self: *Buffer) !void {
     }
 
     if (self.cx < self.rows.items[self.cy].data.items.len) {
-        self.dirty = true;
+        self.edited = true;
         try self.rows.items[self.cy].deleteChar(self, self.cx);
     } else {
         if (self.cy == self.rows.items.len - 1) {
             return;
         }
 
-        self.dirty = true;
+        self.edited = true;
         try self.rows.items[self.cy].appendString(self, self.rows.items[self.cy + 1].data.items);
         self.deleteRow(self.cy + 1);
     }
@@ -179,7 +179,7 @@ pub fn deleteAllRows(self: *Buffer) void {
         return;
     }
 
-    self.dirty = true;
+    self.edited = true;
     while (self.rows.popOrNull()) |row| {
         row.deinit();
     }
@@ -201,7 +201,7 @@ pub fn deleteRow(self: *Buffer, at: usize) void {
         return;
     }
 
-    self.dirty = true;
+    self.edited = true;
 
     self.rows.orderedRemove(at).deinit();
     var i = at;
@@ -291,7 +291,7 @@ pub fn drawStatusBar(self: Buffer, writer: anytype, screencols: usize) !void {
         try self.allocator.dupe(u8, self.short_name);
     defer self.allocator.free(name);
 
-    const modified = if (self.dirty)
+    const modified = if (self.isDirty())
         @as([]const u8, " (modified)")
     else
         @as([]const u8, "");
@@ -437,7 +437,7 @@ pub fn insertChar(self: *Buffer, char: u8) !void {
     try self.rows.items[self.cy].insertChar(self, self.cx, char);
     self.cx += 1;
 
-    self.dirty = true;
+    self.edited = true;
 }
 
 pub fn insertNChars(self: *Buffer, char: u8, count: usize) !void {
@@ -448,7 +448,7 @@ pub fn insertNChars(self: *Buffer, char: u8, count: usize) !void {
 }
 
 pub fn insertNewline(self: *Buffer) !void {
-    self.dirty = true;
+    self.edited = true;
 
     if (self.cx == 0) {
         try self.insertRow(self.cy, "");
@@ -484,7 +484,17 @@ pub fn insertRow(self: *Buffer, at: usize, data: []const u8) !void {
     }
     try self.rows.items[at].update(self);
 
-    self.dirty = true;
+    self.edited = true;
+}
+
+pub fn isDirty(self: Buffer) bool {
+    if (self.short_name.len > 0) {
+        if (self.short_name[0] == '*' and self.short_name[self.short_name.len-1] == '*') {
+            return false;
+        }
+    }
+
+    return self.edited;
 }
 
 pub fn killLine(self: *Buffer) !void {
@@ -496,7 +506,7 @@ pub fn killLine(self: *Buffer) !void {
     if (self.cx == row.data.items.len) {
         return self.deleteChar();
     } else {
-        self.dirty = true;
+        self.edited = true;
         try row.data.resize(self.cx);
         return row.update(self);
     }
@@ -672,7 +682,7 @@ pub fn save(self: *Buffer, editor: *Editor) !void {
     };
 
     try editor.setStatusMessage("Saved to '{s}'", .{file_path});
-    self.dirty = false;
+    self.edited = false;
 }
 
 pub fn scroll(self: *Buffer, screenrows: usize, screencols: usize) void {
-- 
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