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-rw-r--r--src/z/parser/lexer.zig14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/z/parser/lexer.zig b/src/z/parser/lexer.zig
index d9a2868..40e1209 100644
--- a/src/z/parser/lexer.zig
+++ b/src/z/parser/lexer.zig
@@ -69,6 +69,20 @@ pub fn Lexer(TokenKind: type) type {
return null;
}
+ pub fn consume(self: *Self) !u8 {
+ return (try self.consumeTo(1))[0];
+ }
+
+ pub fn consumeTo(self: *Self, n: usize) ![]const u8 {
+ if (n <= self.buffer.len) {
+ const slice = self.buffer[0..n];
+ self.buffer = self.buffer[n..];
+ return slice;
+ } else {
+ return Error.EndOfBuffer;
+ }
+ }
+
pub fn skip(self: *Self) !void {
return self.skipTo(1);
}