Add basic program

3 files changed, 114 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..765d08a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.o
+zigcurses
+zig_cache
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..0bbfd98
--- /dev/null
+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2020 Josias Allestad <justjosias@tutanota.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/curses.zig b/curses.zig
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index 0000000..cc700c5
--- /dev/null
+++ b/curses.zig
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+const std = @import("std");
+const os = std.os;
+const warn = std.debug.warn;
+const termios = os.termios;
+const ascii = std.ascii;
+
+const STDIN_FILENO = 0;
+
+// I need to figure out how to implement this
+//pub fn CTRL_KEY(k: u8) u8 {
+//    return ((k) & 0x1f);
+//}
+
+const Window = struct {
+    original: termios,
+
+    pub fn init() !Window {
+        var original_termios = try os.tcgetattr(STDIN_FILENO);
+        var raw = original_termios;
+
+        raw.iflag &= ~(@as(u8, os.BRKINT) | @as(u16, os.ICRNL) |
+                           @as(u8, os.INPCK) | @as(u8, os.ISTRIP) | @as(u16, os.IXON));
+        raw.oflag &= ~(@as(u8, os.OPOST));
+        raw.cflag |= (os.CS8);
+        raw.lflag &= ~(@as(u8, os.ECHO) | @as(u8, os.ICANON) |
+                           @as(u16, os.IEXTEN) | @as(u8, os.ISIG));
+
+        // My attempt at VTIME and VMIN
+        raw.cc[5] = 0;
+        raw.cc[7] = 1;
+
+        try os.tcsetattr(STDIN_FILENO, os.TCSA.FLUSH, raw);
+
+        return Window{
+            .original = original_termios,
+        };
+    }
+
+    pub fn end(self: Window) !void {
+        try os.tcsetattr(0, os.TCSA.FLUSH, self.original);
+    }
+};
+
+test "Window open and close" {
+    var window = try Window.init();
+    try window.end();
+}
+
+pub fn readKey() !u8 {
+    const in_stream = std.io.getStdOut().inStream();
+    var c: u8 = try in_stream.readByte();
+    return c;
+}
+
+test "try to read a key" {
+    var window = try Window.init();
+
+    warn("\r\nEnter a key: ", .{});
+    var c: u8 = try readKey();
+    warn("You entered: {}\n", .{c});
+    
+    try window.end();
+}
+
+// An example for main -- to be moved to an example directory
+pub fn main() !void {
+    const in_stream = std.io.getStdOut().inStream();
+
+    var w = try Window.init();
+    while (true) {
+        var c: u8 = undefined;
+        c = try in_stream.readByte();
+
+        if (ascii.isCntrl(c)) {
+            warn("It's control! {}\r\n", .{c});
+        } else {
+            warn("{}\r\n", .{c});
+        }
+
+        if (ascii.isCntrl(c) and c == 'q') {
+            break;
+        }
+        //warn("{}\n", .{CTRL_KEY(c)});
+        if (c == 17) {
+            break;
+        }
+    }
+
+    try w.end();
+}