1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
const std = @import("std");
const interpreter = @import("interpreter.zig");
const io = @import("io.zig");
const spoon = @import("spoon");
var term: spoon.Term = undefined;
var args: [][:0]u8 = undefined;
var intp: *interpreter.Interpreter = undefined;
pub fn main() anyerror!void {
//--- befunge initialization ----------------------------------------------
var gpa = std.heap.GeneralPurposeAllocator(.{}){};
defer std.debug.assert(!gpa.deinit());
args = try std.process.argsAlloc(gpa.allocator());
defer std.process.argsFree(gpa.allocator(), args);
if (args.len < 2) {
std.debug.print("Usage: {s} <b98_file_to_run>\n", .{args[0]});
std.os.exit(1);
}
var file = try std.fs.cwd().openFile(args[1], .{});
defer file.close();
const env: []const [*:0]const u8 = std.os.environ;
intp = try interpreter.Interpreter.init(gpa.allocator(), file.reader(), null, args, env[0..]);
defer intp.deinit();
var ioContext = io.context(std.io.getStdIn().reader(), std.io.getStdOut().writer()); // TODO io functions for tui
//--- Term initialization -------------------------------------------------
try term.init(.{});
defer term.deinit();
try std.os.sigaction(std.os.SIG.WINCH, &std.os.Sigaction{
.handler = .{ .handler = handleSigWinch },
.mask = std.os.empty_sigset,
.flags = 0,
}, null);
var fds: [1]std.os.pollfd = undefined;
fds[0] = .{
.fd = term.tty.handle,
.events = std.os.POLL.IN,
.revents = undefined,
};
try term.uncook(.{});
defer term.cook() catch {};
//--- Main loop -----------------------------------------------------------
try term.fetchSize();
try term.setWindowTitle("zigfunge98-tui", .{});
try render();
var buf: [16]u8 = undefined;
var done = false;
while (!done) {
_ = try std.os.poll(&fds, -1);
const read = try term.readInput(&buf);
var it = spoon.inputParser(buf[0..read]);
while (it.next()) |in| {
if (in.eqlDescription("escape") or in.eqlDescription("q")) {
done = true;
break;
} else if (in.eqlDescription("s")) {
if (try intp.step(&ioContext)) |code| {
try term.cook();
term.deinit();
intp.deinit();
file.close();
std.process.argsFree(gpa.allocator(), args);
std.debug.assert(!gpa.deinit());
std.os.exit(@intCast(u8, code));
}
try render();
}
}
}
}
fn handleSigWinch(_: c_int) callconv(.C) void {
term.fetchSize() catch {};
render() catch {};
}
fn render() !void {
var rc = try term.getRenderContext();
defer rc.done() catch {};
try rc.clear();
if (term.width < 80 or term.height < 24) {
try rc.setAttribute(.{ .fg = .red, .bold = true });
try rc.writeAllWrapping("Terminal too small!");
return;
}
try rc.moveCursorTo(0, 0);
var filename = rc.restrictedPaddingWriter(term.width);
try filename.writer().print("{s} | steps:{d}", .{ args[1], 0 });
try rc.moveCursorTo(2, 0);
try rc.setAttribute(.{ .fg = .green, .reverse = true });
var stack = rc.restrictedPaddingWriter(16);
try stack.writer().writeAll("---- Stack ----");
try rc.setAttribute(.{ .fg = .green, .reverse = false });
var n: usize = 0;
while (n < intp.pointer.ss.toss.data.items.len) : (n += 1) {
try rc.moveCursorTo(3 + n, 0);
var s = rc.restrictedPaddingWriter(16);
const v = intp.pointer.ss.toss.data.items[n];
if (v >= 32 and v < 127) {
try s.writer().print("{c} - {d}", .{ @intCast(u8, v), v });
} else {
try s.writer().print("{d}", .{v});
}
}
try rc.moveCursorTo(2, 18);
try rc.setAttribute(.{ .fg = .blue, .reverse = true });
var fieldTitle = rc.restrictedPaddingWriter(term.width - 17);
const size = intp.field.getSize();
try fieldTitle.writer().print("Funge field | top left corner:({d},{d}) size:{d}x{d}", .{ size[0], size[1], size[2], size[3] });
try fieldTitle.pad();
try rc.setAttribute(.{ .fg = .blue, .reverse = false });
var y: usize = 0; // TODO negative lines
while (y < @min(@intCast(usize, size[3]), term.height - 3)) : (y += 1) {
var field = rc.restrictedPaddingWriter(term.width - 17);
const line = intp.field.lines.items[y];
var x: usize = 0;
if (line.x >= 0) {
try rc.moveCursorTo(y + 3, 18 + @intCast(usize, line.x));
} else {
try rc.moveCursorTo(y + 3, 18); // TODO negative columns
}
while (x < @min(line.data.items.len, term.width - 18)) : (x += 1) {
var reset = false;
if (x + @intCast(usize, line.x) == intp.pointer.x and y == intp.pointer.y) { // TODO negatives
try rc.setAttribute(.{ .fg = .red, .reverse = true });
reset = true;
}
if (line.data.items[x] >= 32 and line.data.items[x] < 127) {
try field.writer().print("{c}", .{@intCast(u8, line.data.items[x])});
} else {
try field.writer().writeAll("®");
}
if (reset) {
try rc.setAttribute(.{ .fg = .blue, .reverse = false });
}
}
}
}
|
