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add multiline comment support

This commit is contained in:
Luna 2019-06-04 17:40:13 -03:00
parent 1e47b29685
commit 8a9522d954
1 changed files with 21 additions and 8 deletions
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29
src/scanner.zig
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@ -153,7 +153,7 @@ pub const Scanner = struct {
}
fn peekNext(self: *Scanner) u8 {
if (self.current + 1 >= self.source.len) return 0;
if (self.current > self.source.len) return 0;
return self.source[self.current];
}
@ -246,14 +246,27 @@ pub const Scanner = struct {
'>' => self.makeMatchToken('=', .GreaterEqual, .Greater),
'/' => blk: {
if (self.peekNext() == '/') {
while (self.peek() != '\n' and !self.isAtEnd()) {
_ = self.advance();
}
var next = self.peekNext();
switch (next) {
'/' => blk2: {
while (self.peek() != '\n' and !self.isAtEnd()) {
_ = self.advance();
}
break :blk null;
} else {
break :blk self.makeToken(.Slash);
return null;
},
'*' => blk2: {
while (self.peek() != '*' or self.peekNext() != '/') {
_ = self.advance();
}
// consume the ending slash
_ = self.advance();
return null;
},
else => break :blk self.makeToken(.Slash),
}
},