diff --git a/lexers/embedded/hare.xml b/lexers/embedded/hare.xml
index 424cf7638..a1f110312 100644
--- a/lexers/embedded/hare.xml
+++ b/lexers/embedded/hare.xml
@@ -7,17 +7,11 @@
   </config>
   <rules>
     <state name="whitespace">
-      <rule pattern="^use\s.+;">
-        <token type="CommentPreproc"/>
+      <rule pattern="[\s\n]+">
+        <token type="TextWhitespace"/>
       </rule>
       <rule pattern="@[a-z]+">
-        <token type="CommentPreproc"/>
-      </rule>
-      <rule pattern="\n">
-        <token type="Text"/>
-      </rule>
-      <rule pattern="\s+">
-        <token type="Text"/>
+        <token type="NameDecorator"/>
       </rule>
       <rule pattern="//.*\n">
         <token type="CommentSingle"/>
@@ -64,6 +58,9 @@
       <rule pattern="[()\[\],.{};]">
         <token type="Punctuation"/>
       </rule>
+      <rule pattern="use\b">
+        <token type="KeywordNamespace"/>
+      </rule>
       <rule pattern="(_|align|break|const|continue|else|enum|export|for|if|return|size|static|struct|offset|union|fn|free|assert|abort|alloc|let|len|def|type|match|switch|case|append|delete|insert|defer|yield|vastart|vaarg|vaend)\b">
         <token type="Keyword"/>
       </rule>
diff --git a/lexers/testdata/hare.actual b/lexers/testdata/hare.actual
new file mode 100644
index 000000000..f15054ebc
--- /dev/null
+++ b/lexers/testdata/hare.actual
@@ -0,0 +1,66 @@
+use bufio;
+use fmt;
+use io;
+use linux::timerfd;
+use os;
+use os::exec;
+use time;
+use unix::poll;
+
+type period = struct {
+	comment: str,
+	duration: time::duration,
+};
+
+const periods: [_]period = [
+	period { comment = "Time to start working!", duration = 25 * time::MINUTE },
+	period { comment = "Time to start resting!", duration = 5 * time::MINUTE  },
+	period { comment = "Time to start working!", duration = 25 * time::MINUTE },
+	period { comment = "Time to start resting!", duration = 5 * time::MINUTE  },
+	period { comment = "Time to start working!", duration = 25 * time::MINUTE },
+	period { comment = "Time to start resting!", duration = 5 * time::MINUTE  },
+	period { comment = "Time to start working!", duration = 25 * time::MINUTE },
+	period { comment = "Time to take a nap!"   , duration = 15 * time::MINUTE },
+];
+
+export fn main() void = {
+	for (let i = 0z, paused = false; true; i = (i + 1) % len(periods)) {
+		let period = periods[i];
+
+		let cmd = exec::cmd("notify-send", "--", "theo", period.comment)!;
+		exec::start(&cmd)!;
+
+		let tfd = timerfd::new(time::clock::MONOTONIC, timerfd::new_flag::NONE)!;
+		defer {
+			timerfd::unset(tfd)!;
+			io::close(tfd)!;
+		};
+		timerfd::set(tfd, time::SECOND: timerfd::interval, timerfd::set_flag::NONE)!;
+
+		let fds = [poll::pollfd { fd = tfd, events = poll::event::POLLIN, ... }, poll::pollfd { fd = os::stdin_file, events = poll::event::POLLIN, ... }];
+
+		for (let remaining = period.duration; remaining >= 0; poll::poll(fds, poll::INDEF)!) {
+			if (fds[1].revents != 0) {
+				match (bufio::read_line(os::stdin_file)) {
+					case let arr: []u8 => free(arr);
+					case => void;
+				};
+
+				paused = !paused;
+			};
+
+			if (paused) {
+				// TODO: just disable timer instead of sleeping.
+				time::sleep(time::SECOND);
+				continue;
+			};
+
+			if (fds[0].revents != 0) {
+				timerfd::read(tfd)!;
+				remaining -= time::SECOND;
+				let remaining_secs = remaining / time::SECOND;
+				fmt::printfln("{} ({:02}:{:02} remaining)", period.comment, remaining_secs / 60, remaining_secs % 60)!;
+			};
+		};
+	};
+};
diff --git a/lexers/testdata/hare.expected b/lexers/testdata/hare.expected
new file mode 100644
index 000000000..dc7f75075
--- /dev/null
+++ b/lexers/testdata/hare.expected
@@ -0,0 +1,747 @@
+[
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"bufio"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"fmt"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"io"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"linux"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"os"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"os"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"exec"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"KeywordNamespace","value":"use"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"unix"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"poll"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\n"},
+  {"type":"Keyword","value":"type"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Keyword","value":"struct"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"comment"},
+  {"type":"Operator","value":":"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"KeywordType","value":"str"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"duration"},
+  {"type":"Operator","value":":"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"duration"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\n"},
+  {"type":"Keyword","value":"const"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"periods"},
+  {"type":"Operator","value":":"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"["},
+  {"type":"Keyword","value":"_"},
+  {"type":"Punctuation","value":"]"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"["},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start working!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"25"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start resting!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"5"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":"  "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start working!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"25"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start resting!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"5"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":"  "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start working!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"25"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start resting!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"5"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":"  "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to start working!\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"25"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"comment"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"Time to take a nap!\""},
+  {"type":"TextWhitespace","value":"   "},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"duration"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"15"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"*"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MINUTE"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"Punctuation","value":"];"},
+  {"type":"TextWhitespace","value":"\n\n"},
+  {"type":"Keyword","value":"export"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Keyword","value":"fn"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"main"},
+  {"type":"Punctuation","value":"()"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"KeywordType","value":"void"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Keyword","value":"for"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"i"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"0z"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"paused"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"NameBuiltin","value":"false"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"NameBuiltin","value":"true"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"i"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"i"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"+"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"1"},
+  {"type":"Punctuation","value":")"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"%"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Keyword","value":"len"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"periods"},
+  {"type":"Punctuation","value":"))"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"period"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"periods"},
+  {"type":"Punctuation","value":"["},
+  {"type":"Name","value":"i"},
+  {"type":"Punctuation","value":"];"},
+  {"type":"TextWhitespace","value":"\n\n\t\t"},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"cmd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"exec"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"cmd"},
+  {"type":"Punctuation","value":"("},
+  {"type":"LiteralString","value":"\"notify-send\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"--\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralString","value":"\"theo\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"period"},
+  {"type":"Punctuation","value":"."},
+  {"type":"Name","value":"comment"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Name","value":"exec"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"start"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Operator","value":"\u0026"},
+  {"type":"Name","value":"cmd"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\n\t\t"},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"tfd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"new"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"clock"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"MONOTONIC"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"new_flag"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"NONE"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Keyword","value":"defer"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"unset"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"tfd"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Name","value":"io"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"close"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"tfd"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"set"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"tfd"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"SECOND"},
+  {"type":"Operator","value":":"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"interval"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"set_flag"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"NONE"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\n\t\t"},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"fds"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"["},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"pollfd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"fd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"tfd"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"events"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"event"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"POLLIN"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"..."},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"},"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"pollfd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"fd"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"os"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"stdin_file"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"events"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"event"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"POLLIN"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"..."},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"}];"},
+  {"type":"TextWhitespace","value":"\n\n\t\t"},
+  {"type":"Keyword","value":"for"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"period"},
+  {"type":"Punctuation","value":"."},
+  {"type":"Name","value":"duration"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"\u003e="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"0"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"poll"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"fds"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"poll"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"INDEF"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":")"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Keyword","value":"if"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"fds"},
+  {"type":"Punctuation","value":"["},
+  {"type":"LiteralNumberInteger","value":"1"},
+  {"type":"Punctuation","value":"]."},
+  {"type":"Name","value":"revents"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"!="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"0"},
+  {"type":"Punctuation","value":")"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Keyword","value":"match"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"bufio"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"read_line"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"os"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"stdin_file"},
+  {"type":"Punctuation","value":"))"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t\t"},
+  {"type":"Keyword","value":"case"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"arr"},
+  {"type":"Operator","value":":"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"[]"},
+  {"type":"KeywordType","value":"u8"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"=\u003e"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Keyword","value":"free"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"arr"},
+  {"type":"Punctuation","value":");"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t\t"},
+  {"type":"Keyword","value":"case"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"=\u003e"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"KeywordType","value":"void"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\n\t\t\t\t"},
+  {"type":"Name","value":"paused"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"!"},
+  {"type":"Name","value":"paused"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\n\t\t\t"},
+  {"type":"Keyword","value":"if"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"paused"},
+  {"type":"Punctuation","value":")"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"CommentSingle","value":"// TODO: just disable timer instead of sleeping.\n"},
+  {"type":"TextWhitespace","value":"\t\t\t\t"},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"sleep"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"SECOND"},
+  {"type":"Punctuation","value":");"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Keyword","value":"continue"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\n\t\t\t"},
+  {"type":"Keyword","value":"if"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"fds"},
+  {"type":"Punctuation","value":"["},
+  {"type":"LiteralNumberInteger","value":"0"},
+  {"type":"Punctuation","value":"]."},
+  {"type":"Name","value":"revents"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"!="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"0"},
+  {"type":"Punctuation","value":")"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Punctuation","value":"{"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Name","value":"timerfd"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"read"},
+  {"type":"Punctuation","value":"("},
+  {"type":"Name","value":"tfd"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Name","value":"remaining"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"-="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"SECOND"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Keyword","value":"let"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining_secs"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"="},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"/"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"time"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"SECOND"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t\t"},
+  {"type":"Name","value":"fmt"},
+  {"type":"Operator","value":"::"},
+  {"type":"Name","value":"printfln"},
+  {"type":"Punctuation","value":"("},
+  {"type":"LiteralString","value":"\"{} ({:02}:{:02} remaining)\""},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"period"},
+  {"type":"Punctuation","value":"."},
+  {"type":"Name","value":"comment"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining_secs"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"/"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"60"},
+  {"type":"Punctuation","value":","},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Name","value":"remaining_secs"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"Operator","value":"%"},
+  {"type":"TextWhitespace","value":" "},
+  {"type":"LiteralNumberInteger","value":"60"},
+  {"type":"Punctuation","value":")"},
+  {"type":"Operator","value":"!"},
+  {"type":"Punctuation","value":";"},
+  {"type":"TextWhitespace","value":"\n\t\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\t\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n\t"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n"},
+  {"type":"Punctuation","value":"};"},
+  {"type":"TextWhitespace","value":"\n"}
+]