mirror/emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2024-12-23 10:34:07 +00:00
Code Issues Releases Activity

Initial revision

Browse Source
This commit is contained in:
Richard M. Stallman 1993-05-19 21:11:06 +00:00
parent f629b14cc1
commit a47a5be5e7
2 changed files with 374 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
lisp/tcp.el Normal file
View File

@ -0,0 +1,68 @@
;;; TCP/IP stream emulation for GNU Emacs
;; Copyright (C) 1988, 1989, 1993 Free Software Foundation, Inc.
;;; Author: Masanobu Umeda
;;; Maintainer: umerin@mse.kyutech.ac.jp
;; This file is part of GNU Emacs.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY. No author or distributor
;; accepts responsibility to anyone for the consequences of using it
;; or for whether it serves any particular purpose or works at all,
;; unless he says so in writing. Refer to the GNU Emacs General Public
;; License for full details.
;; Everyone is granted permission to copy, modify and redistribute
;; GNU Emacs, but only under the conditions described in the
;; GNU Emacs General Public License. A copy of this license is
;; supposed to have been given to you along with GNU Emacs so you
;; can know your rights and responsibilities. It should be in a
;; file named COPYING. Among other things, the copyright notice
;; and this notice must be preserved on all copies.
;; Notes on TCP package:
;;
;; This package provides a TCP/IP stream emulation for GNU Emacs. If
;; the function `open-network-stream' is not defined in Emacs, but
;; your operating system has a capability of network stream
;; connection, this tcp package can be used for communicating with
;; NNTP server.
;;
;; The tcp package runs inferior process which actually does the role
;; of `open-network-stream'. The program `tcp' provided with this
;; package can be used for such purpose. Before loading the package,
;; compile `tcp.c' and install it as `tcp' in a directory in the emacs
;; search path. If you modify `tcp.c', please send diffs to the author
;; of GNUS. I'll include some of them in the next releases.
(provide 'tcp)
(defvar tcp-program-name "tcp"
"*The name of the program emulating open-network-stream function.")
(defun open-network-stream (name buffer host service)
"Open a TCP connection for a service to a host.
Returns a subprocess-object to represent the connection.
Input and output work as for subprocesses; `delete-process' closes it.
Args are NAME BUFFER HOST SERVICE.
NAME is name for process. It is modified if necessary to make it unique.
BUFFER is the buffer (or buffer-name) to associate with the process.
Process output goes at end of that buffer, unless you specify
an output stream or filter function to handle the output.
BUFFER may be also nil, meaning that this process is not associated
with any buffer
Third arg is name of the host to connect to.
Fourth arg SERVICE is name of the service desired, or an integer
specifying a port number to connect to."
(let ((proc (start-process name buffer
tcp-program-name
host
(if (stringp service)
service
(int-to-string service))
)))
(process-kill-without-query proc)
;; Return process
proc
))

306
lisp/timezone.el Normal file
View File

@ -0,0 +1,306 @@
;;; Timezone package for GNU Emacs
;; Copyright(C) 1990, 1991, 1992 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Code:
(provide 'timezone)
(defvar timezone-world-timezones
'(("PST" . -800)
("PDT" . -700)
("MST" . -700)
("MDT" . -600)
("CST" . -600)
("CDT" . -500)
("EST" . -500)
("EDT" . -400)
("AST" . -400) ;by <clamen@CS.CMU.EDU>
("NST" . -330) ;by <clamen@CS.CMU.EDU>
("GMT" . +000)
("BST" . +100)
("MET" . +100)
("EET" . +200)
("JST" . +900)
("GMT+1" . +100) ("GMT+2" . +200) ("GMT+3" . +300)
("GMT+4" . +400) ("GMT+5" . +500) ("GMT+6" . +600)
("GMT+7" . +700) ("GMT+8" . +800) ("GMT+9" . +900)
("GMT+10" . +1000) ("GMT+11" . +1100) ("GMT+12" . +1200) ("GMT+13" . +1300)
("GMT-1" . -100) ("GMT-2" . -200) ("GMT-3" . -300)
("GMT-4" . -400) ("GMT-5" . -500) ("GMT-6" . -600)
("GMT-7" . -700) ("GMT-8" . -800) ("GMT-9" . -900)
("GMT-10" . -1000) ("GMT-11" . -1100) ("GMT-12" . -1200))
"*Time differentials of timezone from GMT in hour.")
(defvar timezone-months-assoc
'(("JAN" . 1)("FEB" . 2)("MAR" . 3)
("APR" . 4)("MAY" . 5)("JUN" . 6)
("JUL" . 7)("AUG" . 8)("SEP" . 9)
("OCT" . 10)("NOV" . 11)("DEC" . 12))
"Alist of first three letters of a month and its numerical representation.")
(defun timezone-make-date-arpa-standard (date &optional local timezone)
"Convert DATE to an arpanet standard date.
Optional 1st argumetn LOCAL specifies the default local timezone of the DATE.
Optional 2nd argument TIMEZONE specifies a timezone to be represented in."
(let* ((date (timezone-parse-date date))
(year (string-to-int (aref date 0)))
(month (string-to-int (aref date 1)))
(day (string-to-int (aref date 2)))
(time (timezone-parse-time (aref date 3)))
(hour (string-to-int (aref time 0)))
(minute (string-to-int (aref time 1)))
(second (string-to-int (aref time 2)))
(local (or (aref date 4) local)) ;Use original if defined
(timezone (or timezone local))
(diff (- (timezone-zone-to-minute timezone)
(timezone-zone-to-minute local)))
(new (timezone-fix-time year month day
hour (+ minute diff) second)))
(timezone-make-arpa-date (aref new 0) (aref new 1) (aref new 2)
(timezone-make-time-string
(aref new 3) (aref new 4) (aref new 5))
timezone)
))
(defun timezone-make-date-sortable (date &optional local timezone)
"Convert DATE to a sortable date string.
Optional 1st argumetn LOCAL specifies the default local timezone of the DATE.
Optional 2nd argument TIMEZONE specifies a timezone to be represented in."
(let* ((date (timezone-parse-date date))
(year (string-to-int (aref date 0)))
(month (string-to-int (aref date 1)))
(day (string-to-int (aref date 2)))
(time (timezone-parse-time (aref date 3)))
(hour (string-to-int (aref time 0)))
(minute (string-to-int (aref time 1)))
(second (string-to-int (aref time 2)))
(local (or (aref date 4) local)) ;Use original if defined
(timezone (or timezone local))
(diff (- (timezone-zone-to-minute timezone)
(timezone-zone-to-minute local)))
(new (timezone-fix-time year month day
hour (+ minute diff) second)))
(timezone-make-sortable-date (aref new 0) (aref new 1) (aref new 2)
(timezone-make-time-string
(aref new 3) (aref new 4) (aref new 5)))
))
;;
;; Parsers and Constructors of Date and Time
;;
(defun timezone-make-arpa-date (year month day time &optional timezone)
"Make arpanet standard date string from YEAR, MONTH, DAY, and TIME.
Optional argument TIMEZONE specifies a time zone."
(format "%02d %s %4d %s%s"
day
(capitalize (car (rassq month timezone-months-assoc)))
;;(- year (* (/ year 100) 100)) ;1990 -> 90
(if (< year 100) (+ year 1900) year) ;90->1990
time
(if timezone (concat " " timezone) "")
))
(defun timezone-make-sortable-date (year month day time)
"Make sortable date string from YEAR, MONTH, DAY, and TIME."
(format "%4d%02d%02d%s"
;;(- year (* (/ year 100) 100)) ;1990 -> 90
(if (< year 100) (+ year 1900) year) ;90->1990
month day time))
(defun timezone-make-time-string (hour minute second)
"Make time string from HOUR, MINUTE, and SECOND."
(format "%02d:%02d:%02d" hour minute second))
(defun timezone-parse-date (date)
"Parse DATE and return a vector [year month day time timezone].
19 is prepended to year if necessary. Timezone may be NIL if nothing.
Understand the following styles:
(1) 14 Apr 89 03:20[:12] [GMT]
(2) Fri, 17 Mar 89 4:01[:33] [GMT]
(3) Mon Jan 16 16:12[:37] [GMT] 1989
(4) 6 May 1992 1641-JST (Wednesday)"
(let ((date (or date ""))
(year nil)
(month nil)
(day nil)
(time nil)
(zone nil)) ;This may be nil.
(cond ((string-match
"\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\'" date)
;; Styles: (1) and (2) without timezone
(setq year 3 month 2 day 1 time 4 zone nil))
((string-match
"\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
;; Styles: (1) and (2) with timezone and buggy timezone
(setq year 3 month 2 day 1 time 4 zone 5))
((string-match
"\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]+\\([0-9]+\\)" date)
;; Styles: (3) without timezone
(setq year 4 month 1 day 2 time 3 zone nil))
((string-match
"\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+:[0-9:]+\\)[ \t]+\\([-+a-zA-Z0-9]+\\)[ \t]+\\([0-9]+\\)" date)
;; Styles: (3) with timezoen
(setq year 5 month 1 day 2 time 3 zone 4))
((string-match
"\\([0-9]+\\)[ \t]+\\([^ \t,]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+\\)[ \t]*\\([-+a-zA-Z0-9]+\\)" date)
;; Styles: (4) with timezone
(setq year 3 month 2 day 1 time 4 zone 5))
)
(if year
(progn
(setq year
(substring date (match-beginning year) (match-end year)))
;; It is now Dec 1992. 8 years before the end of the World.
(if (< (length year) 4)
(setq year (concat "19" (substring year -2 nil))))
(setq month
(int-to-string
(cdr
(assoc
(upcase
;; Don't use `match-end' in order to take 3
;; letters from the beginning.
(substring date
(match-beginning month)
(+ (match-beginning month) 3)))
timezone-months-assoc))))
(setq day
(substring date (match-beginning day) (match-end day)))
(setq time
(substring date (match-beginning time) (match-end time)))))
(if zone
(setq zone
(substring date (match-beginning zone) (match-end zone))))
;; Return a vector.
(if year
(vector year month day time zone)
(vector "0" "0" "0" "0" nil))
))
(defun timezone-parse-time (time)
"Parse TIME (HH:MM:SS) and return a vector [hour minute second].
Recognize HH:MM:SS, HH:MM, HHMMSS, HHMM."
(let ((time (or time ""))
(hour nil)
(minute nil)
(second nil))
(cond ((string-match "\\`\\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\)\\'" time)
;; HH:MM:SS
(setq hour 1 minute 2 second 3))
((string-match "\\`\\([0-9]+\\):\\([0-9]+\\)\\'" time)
;; HH:MM
(setq hour 1 minute 2 second nil))
((string-match "\\`\\([0-9][0-9]\\)\\([0-9][0-9]\\)\\([0-9][0-9]\\)\\'" time)
;; HHMMSS
(setq hour 1 minute 2 second 3))
((string-match "\\`\\([0-9][0-9]\\)\\([0-9][0-9]\\)\\'" time)
;; HHMM
(setq hour 1 minute 2 second nil))
)
;; Return [hour minute second]
(vector
(if hour
(substring time (match-beginning hour) (match-end hour)) "0")
(if minute
(substring time (match-beginning minute) (match-end minute)) "0")
(if second
(substring time (match-beginning second) (match-end second)) "0"))
))
;; Miscellaneous
(defun timezone-zone-to-minute (timezone)
"Translate TIMEZONE (in zone name or integer) to integer minute."
(if timezone
(progn
(setq timezone
(or (cdr (assoc (upcase timezone) timezone-world-timezones))
;; +900
timezone))
(if (stringp timezone)
(setq timezone (string-to-int timezone)))
;; Taking account of minute in timezone.
;; HHMM -> MM
;;(+ (* 60 (/ timezone 100)) (% timezone 100))
;; ANSI C compliance about truncation of integer division
;; by eggert@twinsun.com (Paul Eggert)
(let* ((abszone (max timezone (- timezone)))
(minutes (+ (* 60 (/ abszone 100)) (% abszone 100))))
(if (< timezone 0) (- minutes) minutes)))
0))
(defun timezone-fix-time (year month day hour minute second)
"Fix date and time."
;; MINUTE may be larger than 60 or smaller than -60.
(let ((hour-fix
(if (< minute 0)
;;(/ (- minute 59) 60) (/ minute 60)
;; ANSI C compliance about truncation of integer division
;; by eggert@twinsun.com (Paul Eggert)
(- (/ (- 59 minute) 60)) (/ minute 60))))
(setq hour (+ hour hour-fix))
(setq minute (- minute (* 60 hour-fix))))
;; HOUR may be larger than 24 or smaller than 0.
(cond ((<= 24 hour) ;24 -> 00
(setq hour (- hour 24))
(setq day (1+ day))
(if (< (timezone-last-day-of-month month year) day)
(progn
(setq month (1+ month))
(setq day 1)
(if (< 12 month)
(progn
(setq month 1)
(setq year (1+ year))
))
)))
((> 0 hour)
(setq hour (+ hour 24))
(setq day (1- day))
(if (> 1 day)
(progn
(setq month (1- month))
(if (> 1 month)
(progn
(setq month 12)
(setq year (1- year))
))
(setq day (timezone-last-day-of-month month year))
)))
)
(vector year month day hour minute second))
;; Partly copied from Calendar program by Edward M. Reingold.
;; Thanks a lot.
(defun timezone-last-day-of-month (month year)
"The last day in MONTH during YEAR."
(if (and (= month 2) (timezone-leap-year-p year))
29
(aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month))))
(defun timezone-leap-year-p (year)
"Returns t if YEAR is a Gregorian leap year."
(or (and (zerop (% year 4))
(not (zerop (% year 100))))
(zerop (% year 400))))