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const std = @import("std");
const testing = std.testing;
const expect = testing.expect;
pub const io = @import("../zisp/io.zig");
pub const value = @import("../zisp/value.zig");
pub const Value = value.Value;
fn parse(str: []const u8) Value {
var fbs = std.io.fixedBufferStream(str);
return io.parser.parse(fbs.reader().any());
}
test "parse empty" {
try expect(parse("").eq(value.eof));
try expect(parse(";").eq(value.eof));
try expect(parse(";~").eq(value.eof));
try expect(parse(" ;").eq(value.eof));
try expect(parse(" ;~").eq(value.eof));
try expect(parse("; ").eq(value.eof));
try expect(parse(";~ ").eq(value.eof));
try expect(parse(";\n").eq(value.eof));
try expect(parse(";\n ").eq(value.eof));
try expect(parse(";~foo").eq(value.eof));
try expect(parse(";~foo ").eq(value.eof));
try expect(parse(";~foo;").eq(value.eof));
try expect(parse(";~foo ;").eq(value.eof));
try expect(parse("\t\r\n ;foo\n;~(\nbar\n)").eq(value.eof));
}
test "parse short bare string" {
const str = value.sstr.pack;
try expect(parse(".").eq(str(".")));
try expect(parse("..").eq(str("..")));
try expect(parse("...").eq(str("...")));
try expect(parse(".a.b").eq(str(".a.b")));
try expect(parse("+0.1").eq(str("+0.1")));
try expect(parse("-0.1").eq(str("-0.1")));
try expect(parse("10.1").eq(str("10.1")));
try expect(parse("|x()|").eq(str("x()")));
try expect(parse("|{\\|}|").eq(str("{|}")));
try expect(parse("foobar").eq(str("foobar")));
try expect(parse("!$%&*+").eq(str("!$%&*+")));
try expect(parse("-/<=>?").eq(str("-/<=>?")));
try expect(parse("@^_~00").eq(str("@^_~00")));
}
test "parse long bare string" {
const str = value.istr.intern;
try expect(parse("foobarbaz").eq(str("foobarbaz")));
try expect(parse(".foo.bar.baz").eq(str(".foo.bar.baz")));
try expect(parse("+foo.bar.baz").eq(str("+foo.bar.baz")));
try expect(parse("-foo.bar.baz").eq(str("-foo.bar.baz")));
try expect(parse("0foo.bar.baz").eq(str("0foo.bar.baz")));
try expect(parse("!$%&*+-/<=>?@^_~").eq(str("!$%&*+-/<=>?@^_~")));
try expect(parse("|foo\\x20bar\\x0abaz|").eq(str("foo bar\nbaz")));
}
test "parse" {
const val = parse("foo");
try testing.expect(value.sstr.check(val));
const s = value.sstr.unpack(val);
try testing.expectEqualStrings("foo", s.slice());
}
test "parse2" {
const val = parse(
\\ ;; Testing some crazy datum comments
\\ ;~"bar"([x #"y"]{##`,'z}) #"foo"
\\ ;; end
);
const r = value.rune.unpack(value.pair.car(val));
try testing.expectEqualStrings("HASH", r.slice());
const s = value.pair.cdr(value.pair.cdr(val));
try testing.expect(value.sstr.check(s));
const f = value.sstr.unpack(s);
try testing.expectEqualStrings("foo", f.slice());
}
test "parse3" {
const val = parse(
\\(foo ;~x ;~(x y) ;~x #bar [#x #"baz"] 'bat)
);
const car = value.pair.car;
const cdr = value.pair.cdr;
const e1 = car(val);
const e2 = car(cdr(val));
const e3 = car(cdr(cdr(val)));
const e4 = car(cdr(cdr(cdr(val))));
try testing.expect(value.sstr.check(e1));
try testing.expect(value.rune.check(e2));
try testing.expect(value.pair.check(e3) != null);
try testing.expect(value.pair.check(e4) != null);
}
test "parse4" {
const val = parse("(foo . ;~x bar ;~y)");
const s = value.sstr.unpack(value.pair.car(val));
try testing.expectEqualStrings("foo", s.slice());
const f = value.sstr.unpack(value.pair.cdr(val));
try testing.expectEqualStrings("bar", f.slice());
}
test "unparse" {
var gpa: std.heap.GeneralPurposeAllocator(.{}) = .init;
var out: std.ArrayList(u8) = .init(gpa.allocator());
const w = out.writer();
const v = parse("#foo");
try io.unparser.unparse(w, v);
try testing.expectEqualStrings("#foo", try out.toOwnedSlice());
}
test "unparse2" {
var gpa: std.heap.GeneralPurposeAllocator(.{}) = .init;
var out: std.ArrayList(u8) = .init(gpa.allocator());
const w = out.writer();
const v = parse("#{foo bar['x]}");
try io.unparser.unparse(w, v);
try testing.expectEqualStrings(
"(#HASH #BRACE foo (#JOIN bar #SQUARE (#QUOTE . x)))",
try out.toOwnedSlice(),
);
}
fn writeParseResult(str: []const u8) !void {
const w = std.io.getStdErr().writer();
const v = parse(str);
try io.unparser.unparse(w, v);
try w.writeByte('\n');
}
test "unparse3" {
try writeParseResult("#{foo bar['x](y)(z)}");
}
test "unparse4" {
try writeParseResult("(foo ;~bar)");
}
test "unparse5" {
try writeParseResult("(;~foo foo ;~bar . ;~bar bar ;~bar)");
}
test "unparse6" {
try writeParseResult("(foo bar ... baz bat.(qux))");
}
test "unparse7" {
try writeParseResult("#`(#,(->keyword (syntax->datum #'sym)) . in)");
}
fn parseBench(path: []const u8, iters: usize) !void {
const file = try std.fs.cwd().openFile(path, .{});
defer file.close();
var sfa = io.parser.DefaultSfa.init(std.heap.smp_allocator);
var parser = try io.parser.initSfa(&sfa);
defer parser.deinit();
var timer = try std.time.Timer.start();
for (0..iters) |i| {
_ = i;
var br = std.io.bufferedReader(file.reader());
const reader = br.reader().any();
// const reader = file.reader().any();
var v: Value = undefined;
while (true) {
// std.debug.print("hihi {s}\n", .{path});
v = parser.run(reader) catch |e| {
std.debug.print("\nfile pos: {}\n", .{
try file.getPos(),
});
return e;
};
// try io.unparser.unparse(std.io.getStdOut().writer().any(), v);
if (value.eof.eq(v)) {
break;
}
}
try file.seekTo(0);
}
const ns: f64 = @floatFromInt(timer.lap());
const secs = ns / 1_000_000_000;
std.debug.print(
"parse {s} x {}: {d:.3}s\n",
.{ path, iters, secs },
);
}
test "parse bench" {
try parseBench("src/test/data/parser-test-1.scm", 200);
try parseBench("src/test/data/parser-test-2.scm", 800);
//try parseBench("src/test/data/parser-torture.scm", 1);
}
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