branch: master
commit fd7796141dc0a9d378a501a70d441967fbe0b094
Author: Junpeng Qiu <qjpchm...@gmail.com>
Commit: Junpeng Qiu <qjpchm...@gmail.com>
Add a few simple API
---
parsec.el | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/parsec.el b/parsec.el
index faf2614..d6283a0 100644
--- a/parsec.el
+++ b/parsec.el
@@ -105,6 +105,9 @@
(defalias 'parsec-eof 'parsec-eob)
+(defun parsec-eol-or-eof ()
+ (parsec-or (parsec-eol) (parsec-eof)))
+
(defun parsec-re (regexp)
(if (looking-at regexp)
(progn (goto-char (match-end 0))
@@ -112,9 +115,37 @@
(parsec-stop :expected regexp
:found (parsec-eof-or-char-as-string))))
+(defun parsec-make-alternatives (chars)
+ (let ((regex-head "")
+ (regex-str "")
+ (regex-end "")
+ contains-caret-p)
+ (dolist (c chars)
+ (cond
+ ((char-equal c ?\]) (setq regex-head "]"))
+ ((char-equal c ?-) (setq regex-end "-"))
+ ((char-equal c ?^) (setq contains-caret-p t))
+ (t (setq regex-str (concat regex-str (char-to-string c))))))
+ (if (and contains-caret-p
+ (string-equal regex-end "-")
+ (string-equal regex-head "")
+ (string-equal regex-str ""))
+ (setq regex-end "-^")
+ (setq regex-str (concat regex-str "^")))
+ (concat regex-head regex-str regex-end)))
+
+(defun parsec-one-of (&rest chars)
+ (parsec-re (format "[%s]" (parsec-make-alternatives chars))))
+
+(defun parsec-none-of (&rest chars)
+ (parsec-re (format "[^%s]" (parsec-make-alternatives chars))))
+
(defsubst parsec-str (str)
(parsec-re (regexp-quote str)))
+(defsubst parsec-string (str)
+ (mapc (lambda (c) (parsec-ch c)) str))
+
(defsubst parsec-num (num &rest args)
(parsec-re (regexp-quote (number-to-string num))))
