completed save/load feature

1 files changed, 23 insertions, 86 deletions

diff --git a/source/app.d b/source/app.d
index 52074b1..1d04fc9 100644
--- a/source/app.d
+++ b/source/app.d
@@ -78,12 +78,11 @@ void main()
                 file.writefln!"%s %s"(disp.y, disp.x);
                 file.writefln!"%d"(rocks);
                 overlay.save(file);
+                disp.print();
             }
             catch (Exception e)
             {
-                // TODO: log the error in a user-visible way
             }
-            disp.print();
             break;
         case 'l':
             auto filename = stdscr.readquery("Load:");
@@ -114,81 +113,6 @@ void main()
     }
 }
 
-import std.range.interfaces : InputRange;
-
-class Reader : InputRange!char
-{
-
-    private int _front;
-    private bool _empty;
-    // Might could be implemented with a larger getnstr
-
-    this()
-    {
-        _front = getch();
-    }
-
-    char moveFront()
-    in
-    {
-        assert(!_empty);
-    }
-    do
-    {
-        auto ret = front();
-        popFront();
-        return ret;
-    }
-
-    @property char front()
-    in
-    {
-        assert(!_empty);
-    }
-    do
-    {
-        return cast(char) _front;
-    }
-
-    void popFront()
-    in
-    {
-        assert(!_empty);
-    }
-    do
-    {
-        _front = getch();
-        if (_front == -1)
-            _empty = true;
-    }
-
-    @property bool empty()
-    {
-        return _empty;
-    }
-
-    int opApply(scope int delegate(char) run)
-    {
-        for (; !_empty; popFront())
-        {
-            if (run(front()))
-                return 1;
-        }
-
-        return 0;
-    }
-
-    int opApply(scope int delegate(size_t, char) run)
-    {
-        for (size_t i = 0; !_empty; popFront(), i++)
-        {
-            if (run(i, front()))
-                return 1;
-        }
-        return 0;
-    }
-}
-
 string readquery(WINDOW* stdscr, string query)
 {
     import std.range : replicate;
@@ -202,19 +126,32 @@ string readquery(WINDOW* stdscr, string query)
     mvprintw(height, 0, toStringz(query ~ " ".replicate(width - query.length)));
     move(height, cast(int) query.length + 1);
 
-    echo();
     scrollok(stdscr, false);
-    auto build = appender!string;
+    auto build = appender!(char[]);
 
-    auto reader = new Reader();
-
-    while (!reader.empty && reader.front != '\r')
+    int p = cast(int) query.length + 1;
+    while (auto ch = getch())
     {
-        build ~= reader.front;
-        reader.popFront;
+        if (ch == '\r' || ch == EOF)
+            break;
+        if (ch == '\b' || ch == KEY_BACKSPACE || ch == 127)
+        {
+            if (build[].length > 0)
+            {
+                p--;
+                mvaddch(height, p, ' ');
+                build.shrinkTo(build[].length - 1);
+                move(height, p);
+            }
+        }
+        else
+        {
+            build ~= cast(char) ch;
+            addch(ch);
+            p++;
+        }
     }
-    noecho();
     scrollok(stdscr, true);
 
-    return build.data;
+    return cast(string) build[];
 }