diff options
Diffstat (limited to 'lisp/gnus/parse-time.el')
| -rw-r--r-- | lisp/gnus/parse-time.el | 117 |
1 files changed, 66 insertions, 51 deletions
diff --git a/lisp/gnus/parse-time.el b/lisp/gnus/parse-time.el index 64c768c74d7..d00325131a9 100644 --- a/lisp/gnus/parse-time.el +++ b/lisp/gnus/parse-time.el @@ -1,6 +1,6 @@ ;;; parse-time.el --- Parsing time strings -;; Copyright (C) 1996 by Free Software Foundation, Inc. +;; Copyright (C) 1996, 2000 by Free Software Foundation, Inc. ;; Author: Erik Naggum <erik@naggum.no> ;; Keywords: util @@ -36,12 +36,10 @@ ;;; Code: -(eval-when-compile (require 'cl)) ;and ah ain't kiddin' 'bout it +(eval-when-compile (require 'cl)) ;and ah ain't kiddin' 'bout it -(put 'parse-time-syntax 'char-table-extra-slots 0) - -(defvar parse-time-syntax (make-char-table 'parse-time-syntax)) -(defvar parse-time-digits (make-char-table 'parse-time-syntax)) +(defvar parse-time-syntax (make-vector 256 nil)) +(defvar parse-time-digits (make-vector 256 nil)) ;; Byte-compiler warnings (defvar elt) @@ -49,18 +47,18 @@ (unless (aref parse-time-digits ?0) (loop for i from ?0 to ?9 - do (set-char-table-range parse-time-digits i (- i ?0)))) + do (aset parse-time-digits i (- i ?0)))) (unless (aref parse-time-syntax ?0) (loop for i from ?0 to ?9 - do (set-char-table-range parse-time-syntax i ?0)) + do (aset parse-time-syntax i ?0)) (loop for i from ?A to ?Z - do (set-char-table-range parse-time-syntax i ?A)) + do (aset parse-time-syntax i ?A)) (loop for i from ?a to ?z - do (set-char-table-range parse-time-syntax i ?a)) - (set-char-table-range parse-time-syntax ?+ 1) - (set-char-table-range parse-time-syntax ?- -1) - (set-char-table-range parse-time-syntax ?: ?d) + do (aset parse-time-syntax i ?a)) + (aset parse-time-syntax ?+ 1) + (aset parse-time-syntax ?- -1) + (aset parse-time-syntax ?: ?d) ) (defsubst digit-char-p (char) @@ -89,7 +87,8 @@ (setq integer (+ (* integer 10) digit) index (1+ index))) (if (/= index end) - (signal 'parse-error `("not an integer" ,(substring string (or start 0) end))) + (signal 'parse-error `("not an integer" + ,(substring string (or start 0) end))) (* sign integer)))))) (defun parse-time-tokenize (string) @@ -114,24 +113,24 @@ list))) (nreverse list))) -(defvar parse-time-months '(("Jan" . 1) ("Feb" . 2) ("Mar" . 3) - ("Apr" . 4) ("May" . 5) ("Jun" . 6) - ("Jul" . 7) ("Aug" . 8) ("Sep" . 9) - ("Oct" . 10) ("Nov" . 11) ("Dec" . 12))) -(defvar parse-time-weekdays '(("Sun" . 0) ("Mon" . 1) ("Tue" . 2) - ("Wed" . 3) ("Thu" . 4) ("Fri" . 5) ("Sat" . 6))) -(defvar parse-time-zoneinfo `(("Z" 0) ("UT" 0) ("GMT" 0) - ("PST" ,(* -8 3600)) ("PDT" ,(* -7 3600) t) - ("MST" ,(* -7 3600)) ("MDT" ,(* -6 3600) t) - ("CST" ,(* -6 3600)) ("CDT" ,(* -5 3600) t) - ("EST" ,(* -5 3600)) ("EDT" ,(* -4 3600) t)) +(defvar parse-time-months '(("jan" . 1) ("feb" . 2) ("mar" . 3) + ("apr" . 4) ("may" . 5) ("jun" . 6) + ("jul" . 7) ("aug" . 8) ("sep" . 9) + ("oct" . 10) ("nov" . 11) ("dec" . 12))) +(defvar parse-time-weekdays '(("sun" . 0) ("mon" . 1) ("tue" . 2) + ("wed" . 3) ("thu" . 4) ("fri" . 5) ("sat" . 6))) +(defvar parse-time-zoneinfo `(("z" 0) ("ut" 0) ("gmt" 0) + ("pst" ,(* -8 3600)) ("pdt" ,(* -7 3600) t) + ("mst" ,(* -7 3600)) ("mdt" ,(* -6 3600) t) + ("cst" ,(* -6 3600)) ("cdt" ,(* -5 3600) t) + ("est" ,(* -5 3600)) ("edt" ,(* -4 3600) t)) "(zoneinfo seconds-off daylight-savings-time-p)") (defvar parse-time-rules `(((6) parse-time-weekdays) ((3) (1 31)) ((4) parse-time-months) - ((5) (1970 2038)) + ((5) (100 4038)) ((2 1 0) ,#'(lambda () (and (stringp elt) (= (length elt) 8) @@ -150,20 +149,34 @@ (* 60 (parse-integer elt 1 3))) (if (= (aref elt 0) ?-) -1 1)))) ((5 4 3) - ,#'(lambda () (and (stringp elt) (= (length elt) 10) (= (aref elt 4) ?-) (= (aref elt 7) ?-))) + ,#'(lambda () (and (stringp elt) + (= (length elt) 10) + (= (aref elt 4) ?-) + (= (aref elt 7) ?-))) [0 4] [5 7] [8 10]) - ((2 1) + ((2 1 0) ,#'(lambda () (and (stringp elt) (= (length elt) 5) (= (aref elt 2) ?:))) - [0 2] [3 5]) - ((5) (70 99) ,#'(lambda () (+ 1900 elt)))) + [0 2] [3 5] ,#'(lambda () 0)) + ((2 1 0) + ,#'(lambda () (and (stringp elt) + (= (length elt) 4) + (= (aref elt 1) ?:))) + [0 1] [2 4] ,#'(lambda () 0)) + ((2 1 0) + ,#'(lambda () (and (stringp elt) + (= (length elt) 7) + (= (aref elt 1) ?:))) + [0 1] [2 4] [5 7]) + ((5) (50 110) ,#'(lambda () (+ 1900 elt))) + ((5) (0 49) ,#'(lambda () (+ 2000 elt)))) "(slots predicate extractor...)") (defun parse-time-string (string) "Parse the time-string STRING into (SEC MIN HOUR DAY MON YEAR DOW DST TZ). The values are identical to those of `decode-time', but any values that are unknown are returned as nil." - (let ((time (list nil nil nil nil nil nil nil nil nil nil)) - (temp (parse-time-tokenize string))) + (let ((time (list nil nil nil nil nil nil nil nil nil)) + (temp (parse-time-tokenize (downcase string)))) (while temp (let ((elt (pop temp)) (rules parse-time-rules) @@ -173,25 +186,27 @@ unknown are returned as nil." (slots (pop rule)) (predicate (pop rule)) (val)) - (if (and (not (nth (car slots) time)) ;not already set - (setq val (cond ((and (consp predicate) - (not (eq (car predicate) 'lambda))) - (and (numberp elt) - (<= (car predicate) elt) - (<= elt (cadr predicate)) - elt)) - ((symbolp predicate) - (cdr (assoc elt (symbol-value predicate)))) - ((funcall predicate))))) - (progn - (setq exit t) - (while slots - (let ((new-val (and rule - (let ((this (pop rule))) - (if (vectorp this) - (parse-integer elt (aref this 0) (aref this 1)) - (funcall this)))))) - (rplaca (nthcdr (pop slots) time) (or new-val val)))))))))) + (when (and (not (nth (car slots) time)) ;not already set + (setq val (cond ((and (consp predicate) + (not (eq (car predicate) + 'lambda))) + (and (numberp elt) + (<= (car predicate) elt) + (<= elt (cadr predicate)) + elt)) + ((symbolp predicate) + (cdr (assoc elt + (symbol-value predicate)))) + ((funcall predicate))))) + (setq exit t) + (while slots + (let ((new-val (and rule + (let ((this (pop rule))) + (if (vectorp this) + (parse-integer + elt (aref this 0) (aref this 1)) + (funcall this)))))) + (rplaca (nthcdr (pop slots) time) (or new-val val))))))))) time)) (provide 'parse-time) |