Commit | Line | Data |
---|---|---|
dea4d055 MW |
1 | (in-package #:sod) |
2 | ||
3 | (defun try-parse* (parser string) | |
4 | (call-with-module-environment | |
5 | (lambda () | |
6 | (let* ((char-scanner (make-string-scanner string)) | |
7 | (scanner (make-instance 'sod-token-scanner | |
8 | :char-scanner char-scanner))) | |
9 | (funcall parser scanner))))) | |
10 | ||
11 | (defmacro try-parse ((scanner string) &body parser) | |
12 | `(try-parse* (lambda (,scanner) | |
13 | (with-parser-context | |
14 | (token-scanner-context :scanner ,scanner) | |
15 | ,@parser)) | |
16 | ,string)) |