558 lines
23 KiB
EmacsLisp
558 lines
23 KiB
EmacsLisp
;;; log4e.el --- provide logging framework for elisp
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;; Copyright (C) 2013 Hiroaki Otsu
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;; Author: Hiroaki Otsu <ootsuhiroaki@gmail.com>
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;; Keywords: log
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;; URL: https://github.com/aki2o/log4e
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;; Version: 0.4.1
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; This extension provides logging framework for elisp.
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;;
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;; For detail, see <https://github.com/aki2o/log4e/blob/master/README.md>
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;;
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;; Enjoy!!!
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;;; Code:
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(require 'cl-lib)
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(require 'rx)
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(defconst log4e-log-level-alist '((fatal . 6)
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(error . 5)
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(warn . 4)
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(info . 3)
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(debug . 2)
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(trace . 1))
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"Alist of log level value.")
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(defconst log4e-default-logging-function-name-alist '((fatal . "log-fatal")
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(error . "log-error")
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(warn . "log-warn")
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(info . "log-info")
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(debug . "log-debug")
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(trace . "log-trace"))
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"Alist of logging function name at default.")
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(defmacro log4e--def-symmaker (symnm)
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`(progn
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(defsubst ,(intern (concat "log4e--make-symbol-" symnm)) (prefix)
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(intern (concat ,(format "log4e--%s-" symnm) prefix)))))
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(log4e--def-symmaker "log-buffer")
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(log4e--def-symmaker "msg-buffer")
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(log4e--def-symmaker "log-template")
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(log4e--def-symmaker "time-template")
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(log4e--def-symmaker "min-level")
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(log4e--def-symmaker "max-level")
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(log4e--def-symmaker "toggle-logging")
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(log4e--def-symmaker "toggle-debugging")
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(log4e--def-symmaker "buffer-coding-system")
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(log4e--def-symmaker "author-mail-address")
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(defmacro log4e--def-level-logger (prefix suffix level)
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(let ((argform (if suffix
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'(msg &rest msgargs)
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'(level msg &rest msgargs)))
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(buff (log4e--make-symbol-log-buffer prefix))
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(msgbuff (log4e--make-symbol-msg-buffer prefix))
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(codsys (log4e--make-symbol-buffer-coding-system prefix))
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(logtmpl (log4e--make-symbol-log-template prefix))
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(timetmpl (log4e--make-symbol-time-template prefix))
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(minlvl (log4e--make-symbol-min-level prefix))
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(maxlvl (log4e--make-symbol-max-level prefix))
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(logging-p (log4e--make-symbol-toggle-logging prefix)))
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`(progn
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;; Define logging function
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(defun ,(intern (concat prefix "--" (or suffix "log"))) ,argform
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,(format "Do logging for %s level log.
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%sMSG/MSGARGS are passed to `format'."
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(if suffix level "any")
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(if suffix "" "LEVEL is symbol that is one of trace debug info warn error fatal.\n"))
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(let ((log4e--current-msg-buffer ,msgbuff))
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,(if suffix
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`(apply 'log4e--logging ,buff ,codsys ,logtmpl ,timetmpl ,minlvl ,maxlvl ,logging-p ',level msg msgargs)
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`(apply 'log4e--logging ,buff ,codsys ,logtmpl ,timetmpl ,minlvl ,maxlvl ,logging-p level msg msgargs))))
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;; Define logging macro
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(defmacro ,(intern (concat prefix "--" (or suffix "log") "*")) ,argform
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,(format "Do logging for %s level log.
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%sMSG/MSGARGS are passed to `format'.
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Evaluation of MSGARGS is invoked only if %s level log should be printed."
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(if suffix level "any")
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(if suffix "" "LEVEL is symbol that is one of trace debug info warn error fatal.\n")
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(if suffix level "the"))
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(let (,@(if suffix (list `(level ',level)) '())
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(buff (log4e--make-symbol-log-buffer ,prefix))
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(msgbuff (log4e--make-symbol-msg-buffer ,prefix))
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(codsys (log4e--make-symbol-buffer-coding-system ,prefix))
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(logtmpl (log4e--make-symbol-log-template ,prefix))
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(timetmpl (log4e--make-symbol-time-template ,prefix))
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(minlvl (log4e--make-symbol-min-level ,prefix))
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(maxlvl (log4e--make-symbol-max-level ,prefix))
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(logging-p (log4e--make-symbol-toggle-logging ,prefix)))
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`(let ((log4e--current-msg-buffer ,msgbuff))
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(when (and ,logging-p
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(log4e--logging-level-p ,minlvl ,maxlvl ',level))
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(log4e--logging ,buff ,codsys ,logtmpl ,timetmpl ,minlvl ,maxlvl ,logging-p ',level ,msg ,@msgargs)))))
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)))
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(defsubst log4e--logging-level-p (minlevel maxlevel currlevel)
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(let ((minlvlvalue (or (assoc-default minlevel log4e-log-level-alist)
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1))
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(maxlvlvalue (or (assoc-default maxlevel log4e-log-level-alist)
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6))
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(currlvlvalue (or (assoc-default currlevel log4e-log-level-alist)
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0)))
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(and (>= currlvlvalue minlvlvalue)
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(<= currlvlvalue maxlvlvalue))))
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(defsubst log4e--get-or-create-log-buffer (buffnm &optional codesys)
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(or (get-buffer buffnm)
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(let ((buff (get-buffer-create buffnm)))
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(with-current-buffer buff
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(log4e-mode)
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(when codesys
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(setq buffer-file-coding-system codesys)))
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buff)))
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(defvar log4e--regexp-msg-format
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(rx-to-string `(and "%"
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(* (any "+#-0")) ; flags
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(* (any "0-9")) ; width
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(? "." (+ (any "0-9"))) ; precision
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(any "a-zA-Z"))))
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(defsubst log4e--insert-log (logtmpl timetmpl level msg msgargs propertize-p)
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(let ((timetext (format-time-string timetmpl))
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(lvltext (format "%-05s" (upcase (symbol-name level))))
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(buffer-read-only nil))
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(when propertize-p
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(put-text-property 0 (length timetext) 'face 'font-lock-doc-face timetext)
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(put-text-property 0 (length lvltext) 'face 'font-lock-keyword-face lvltext))
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(let* ((logtext logtmpl)
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(logtext (replace-regexp-in-string "%t" timetext logtext))
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(logtext (replace-regexp-in-string "%l" lvltext logtext))
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(logtext (replace-regexp-in-string "%m" msg logtext))
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(begin (point)))
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(insert logtext "\n")
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(when propertize-p
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(put-text-property begin (+ begin 1) 'log4e--level level))
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(cl-loop initially (goto-char begin)
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while (and msgargs
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(re-search-forward log4e--regexp-msg-format nil t))
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do (let* ((currtype (match-string-no-properties 0))
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(currarg (pop msgargs))
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(failfmt nil)
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(currtext (condition-case e
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(format currtype currarg)
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(error (setq failfmt t)
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(format "=%s=" (error-message-string e))))))
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(save-match-data
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(when propertize-p
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(ignore-errors
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(cond (failfmt (put-text-property 0 (length currtext) 'face 'font-lock-warning-face currtext))
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(t (put-text-property 0 (length currtext) 'face 'font-lock-string-face currtext))))))
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(replace-match currtext t t)))
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(goto-char begin))))
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(defvar log4e--current-msg-buffer nil)
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;; We needs this signature be stay for other compiled plugins using old version
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(defun log4e--logging (buffnm codsys logtmpl timetmpl minlevel maxlevel logging-p level msg &rest msgargs)
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(when (and logging-p
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(log4e--logging-level-p minlevel maxlevel level))
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(save-match-data
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(with-current-buffer (log4e--get-or-create-log-buffer buffnm codsys)
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(goto-char (point-max))
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(let* ((buffer-read-only nil)
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(begin (point))
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(currlog (progn
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(log4e--insert-log logtmpl timetmpl level msg msgargs t)
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(goto-char (point-max))
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(buffer-substring-no-properties begin (point))))
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(msgbuf (or (when (and log4e--current-msg-buffer
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(not (eq log4e--current-msg-buffer t)))
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(ignore-errors (get-buffer log4e--current-msg-buffer)))
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log4e--current-msg-buffer)))
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(when msgbuf
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(let ((standard-output (if (buffer-live-p msgbuf)
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msgbuf
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standard-output)))
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(princ currlog))))
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nil))))
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(defun log4e--get-current-log-line-level ()
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(save-excursion
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(beginning-of-line)
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(get-text-property (point) 'log4e--level)))
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;; We needs this signature be stay for other plugins compiled with this old version
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(defun log4e--clear-log (buffnm)
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(with-current-buffer (log4e--get-or-create-log-buffer buffnm)
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(setq buffer-read-only nil)
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(erase-buffer)))
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;; We needs this signature be stay for other plugins compiled with this old version
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(defun log4e--open-log (buffnm)
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(let* ((buff (get-buffer buffnm)))
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(if (not (buffer-live-p buff))
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(message "[Log4E] Not exist log buffer.")
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(with-current-buffer buff
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(setq buffer-read-only t))
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(pop-to-buffer buff))))
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;; We needs this signature be stay for other plugins compiled with this old version
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(defun log4e--open-log-if-debug (buffnm dbg)
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(when dbg
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(log4e--open-log buffnm)))
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;; (defun log4e--send-report-if-not-debug (buffnm dbg addr prefix)
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;; (let* ((buff (get-buffer buffnm)))
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;; (when (and (not dbg)
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;; (stringp addr)
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;; (buffer-live-p buff))
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;; (reporter-submit-bug-report addr prefix nil nil nil nil))))
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(defmacro log4e:deflogger (prefix msgtmpl timetmpl &optional log-function-name-custom-alist)
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"Define the functions of logging for your elisp.
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Specification:
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The following features are provided by evaluating this.
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- do logging for each log level.
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- set max and min log level.
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- switch logging.
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- switch debugging.
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- open and clear log buffer.
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- send bug report for you.
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For details, see Functions section.
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Argument:
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- PREFIX is string as your elisp prefix.
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- MSGTMPL is string as format of log.
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- %t : Replaced with time string. About it, see TIMETMPL argument.
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- %l : Replaced with log level that's TRACE, DEBUG, INFO, WARN, ERROR, FATAL.
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- %m : Replaced with log message that passed by you.
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- TIMETMPL is string as format of time that's passed to `format-time-string'.
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- LOG-FUNCTION-NAME-CUSTOM-ALIST is alist as the function name of logging.
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- If this value is nil, define the following functions.
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yourprefix--log-trace
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yourprefix--log-debug
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...
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yourprefix--log-fatal
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- If you want to custom the name of them, give like the following value.
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\\='((fatal . \"fatal\")
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(error . \"error\")
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(warn . \"warn\")
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(info . \"info\")
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(debug . \"debug\")
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(trace . \"trace\"))
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Then, define the following functions.
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yourprefix--trace
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yourprefix--debug
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...
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yourprefix--fatal
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Functions:
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List all functions defined below. PREFIX is your prefix.
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- PREFIX--log-fatal ... #1
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- PREFIX--log-error ... #1
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- PREFIX--log-warn ... #1
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- PREFIX--log-info ... #1
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- PREFIX--log-debug ... #1
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- PREFIX--log-trace ... #1
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- PREFIX--log-fatal* ... #2
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- PREFIX--log-error* ... #2
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- PREFIX--log-warn* ... #2
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- PREFIX--log-info* ... #2
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- PREFIX--log-debug* ... #2
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- PREFIX--log-trace* ... #2
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- PREFIX--log
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- PREFIX--log-set-level
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- PREFIX--log-enable-logging ... #3
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- PREFIX--log-disable-logging ... #3
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- PREFIX--log-enable-messaging ... #3
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- PREFIX--log-disable-messaging ... #3
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- PREFIX--log-enable-debugging ... #3
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- PREFIX--log-disable-debugging ... #3
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- PREFIX--log-debugging-p
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- PREFIX--log-set-coding-system
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- PREFIX--log-set-author-mail-address
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- PREFIX--log-clear-log ... #3
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- PREFIX--log-open-log ... #3
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- PREFIX--log-open-log-if-debug
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#1 : You can customize this name
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#2 : Name is a #1 name + \"*\"
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#3 : This is command
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Example:
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;; If you develop elisp that has prefix \"hoge\",
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;; write and eval the following sexp in your elisp file.
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(require \\='log4e)
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(log4e:deflogger \"hoge\" \"%t [%l] %m\" \"%H:%M:%S\")
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;; Eval the following
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(hoge--log-enable-logging)
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;; Then, write the following
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(defun hoge-do-hoge (hoge)
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(if (not (stringp hoge))
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(hoge--log-fatal \"failed do hoge : hoge is %s\" hoge)
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(hoge--log-debug \"start do hoge about %s\" hoge)
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(message \"hoge!\")
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(hoge--log-info \"done hoge about %s\" hoge)))
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;; Eval the following
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(hoge-do-hoge \"HOGEGE\")
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;; Do M-x hoge--log-open-log
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;; Open the buffer which name is \" *log4e-hoge*\". The buffer string is below
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12:34:56 [INFO ] done hoge about HOGEGE
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;; Eval the following
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(hoge--log-set-level \\='trace)
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(hoge-do-hoge \"FUGAGA\")
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;; Do M-x hoge--log-open-log
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;; Open the buffer. its string is below
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12:34:56 [INFO ] done hoge about HOGEGE
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12:35:43 [DEBUG] start do hoge about FUGAGA
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12:35:43 [INFO ] done hoge about FUGAGA
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"
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(declare (indent 0))
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(if (or (not (stringp prefix)) (string= prefix "")
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(not (stringp msgtmpl)) (string= msgtmpl "")
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(not (stringp timetmpl)) (string= timetmpl ""))
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(message "[LOG4E] invalid argument of deflogger")
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(let* ((bufsym (log4e--make-symbol-log-buffer prefix))
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(msgbufsym (log4e--make-symbol-msg-buffer prefix))
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(logtmplsym (log4e--make-symbol-log-template prefix))
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(timetmplsym (log4e--make-symbol-time-template prefix))
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(minlvlsym (log4e--make-symbol-min-level prefix))
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(maxlvlsym (log4e--make-symbol-max-level prefix))
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(tglsym (log4e--make-symbol-toggle-logging prefix))
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(dbgsym (log4e--make-symbol-toggle-debugging prefix))
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(codsyssym (log4e--make-symbol-buffer-coding-system prefix))
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(addrsym (log4e--make-symbol-author-mail-address prefix))
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(funcnm-alist (cl-loop with custom-alist = (car (cdr log-function-name-custom-alist))
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for lvl in '(fatal error warn info debug trace)
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for lvlpair = (assq lvl custom-alist)
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for fname = (or (cdr-safe lvlpair) "")
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collect (or (if (string-match "\*" fname)
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(progn
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(message "[LOG4E] ignore %s level name in log-function-name-custom-alist. can't use '*' for the name." lvl)
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nil)
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lvlpair)
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(assq lvl log4e-default-logging-function-name-alist)))))
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`(progn
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;; Define variable for prefix
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(defvar ,bufsym (format " *log4e-%s*" ,prefix))
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(defvar ,logtmplsym ,msgtmpl)
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(defvar ,timetmplsym ,timetmpl)
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(defvar ,minlvlsym 'info)
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(defvar ,maxlvlsym 'fatal)
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(defvar ,tglsym nil)
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(defvar ,msgbufsym nil)
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(defvar ,dbgsym nil)
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(defvar ,codsyssym nil)
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(defvar ,addrsym nil)
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;; Define level set function
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(defun ,(intern (concat prefix "--log-set-level")) (minlevel &optional maxlevel)
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"Set range for doing logging.
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MINLEVEL is symbol of lowest level for doing logging. its default is \\='info.
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MAXLEVEL is symbol of highest level for doing logging. its default is \\='fatal."
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(setq ,minlvlsym minlevel)
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(setq ,maxlvlsym maxlevel))
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;; Define logging toggle function
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(defun ,(intern (concat prefix "--log-enable-logging")) ()
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"Enable logging by logging functions."
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(interactive)
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(setq ,tglsym t))
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(defun ,(intern (concat prefix "--log-disable-logging")) ()
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"Disable logging by logging functions."
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(interactive)
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(setq ,tglsym nil))
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;; Define messaging toggle function
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(defun ,(intern (concat prefix "--log-enable-messaging")) (&optional buffer)
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"Enable dump the log into other buffer by logging functions.
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BUFFER is a buffer dumped log into. nil means *Messages* buffer."
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(interactive)
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(setq ,msgbufsym (or buffer t)))
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(defun ,(intern (concat prefix "--log-disable-messaging")) ()
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"Disable dump the log into other buffer by logging functions."
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(interactive)
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(setq ,msgbufsym nil))
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;; Define debugging toggle function
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(defun ,(intern (concat prefix "--log-enable-debugging")) ()
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"Enable debugging and logging.
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`PREFIX--log-debugging-p' will return t."
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(interactive)
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(setq ,tglsym t)
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(setq ,dbgsym t))
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(defun ,(intern (concat prefix "--log-disable-debugging")) ()
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"Disable debugging.
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`PREFIX--log-debugging-p' will return nil."
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(interactive)
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(setq ,dbgsym nil))
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(defun ,(intern (concat prefix "--log-debugging-p")) ()
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,dbgsym)
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;; Define coding system set funtion
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(defun ,(intern (concat prefix "--log-set-coding-system")) (coding-system)
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"Set charset and linefeed of LOG-BUFFER.
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CODING-SYSTEM is symbol for setting to `buffer-file-coding-system'.
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LOG-BUFFER is a buffer which name is \" *log4e-PREFIX*\"."
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(setq ,codsyssym coding-system))
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;; ;; Define author mail set function
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;; (defun ,(intern (concat prefix "--log-set-author-mail-address")) (before-atmark after-atmark)
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;; "Set mail address of author for elisp that has PREFIX. This value is used SEND-REPORT.
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;; BEFORE-ATMARK is string as part of mail address. If your address is \"hoge@example.co.jp\", it is \"hoge\".
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;; AFTER-ATMARK is string as part of mail address. If your address is \"hoge@example.co.jp\", it is \"example.co.jp\".
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;; SEND-REPORT is `PREFIX--log-send-report-if-not-debug'."
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;; (setq ,addrsym (concat before-atmark "@" after-atmark)))
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;; Define log buffer handle function
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(defun ,(intern (concat prefix "--log-clear-log")) ()
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|
"Clear buffer string of buffer which name is \" *log4e-PREFIX*\"."
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|
(interactive)
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|
(log4e--clear-log ,bufsym))
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|
(defun ,(intern (concat prefix "--log-open-log")) ()
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|
"Open buffer which name is \" *log4e-PREFIX*\"."
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|
(interactive)
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|
(log4e--open-log ,bufsym))
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|
(defun ,(intern (concat prefix "--log-open-log-if-debug")) ()
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|
"Open buffer which name is \" *log4e-PREFIX*\" if debugging is enabled."
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|
(log4e--open-log-if-debug ,bufsym ,dbgsym))
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|
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;; ;; Define report send function
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|
;; (defun ,(intern (concat prefix "--log-send-report-if-not-debug")) ()
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|
;; "Send bug report to author if debugging is disabled.
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|
|
|
;; The author mailaddress is set by `PREFIX--log-set-author-mail-address'.
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|
;; About the way of sending bug report, see `reporter-submit-bug-report'."
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|
;; (log4e--send-report-if-not-debug ,bufsym ,dbgsym ,addrsym ,prefix))
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|
|
|
;; Define each level logging function
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|
(log4e--def-level-logger ,prefix nil nil)
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|
(log4e--def-level-logger ,prefix ,(assoc-default 'fatal funcnm-alist) fatal)
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|
(log4e--def-level-logger ,prefix ,(assoc-default 'error funcnm-alist) error)
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|
(log4e--def-level-logger ,prefix ,(assoc-default 'warn funcnm-alist) warn)
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|
(log4e--def-level-logger ,prefix ,(assoc-default 'info funcnm-alist) info)
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|
(log4e--def-level-logger ,prefix ,(assoc-default 'debug funcnm-alist) debug)
|
|
(log4e--def-level-logger ,prefix ,(assoc-default 'trace funcnm-alist) trace)
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|
|
|
))))
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|
|
|
|
|
;;;###autoload
|
|
(define-derived-mode log4e-mode view-mode "Log4E"
|
|
"Major mode for browsing a buffer made by log4e.
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|
|
|
\\<log4e-mode-map>
|
|
\\{log4e-mode-map}"
|
|
(define-key log4e-mode-map (kbd "J") 'log4e:next-log)
|
|
(define-key log4e-mode-map (kbd "K") 'log4e:previous-log))
|
|
|
|
(defun log4e:next-log ()
|
|
"Move to start of next log on log4e-mode."
|
|
(interactive)
|
|
(let* ((level))
|
|
(while (and (not level)
|
|
(< (point) (point-max)))
|
|
(forward-line 1)
|
|
(setq level (log4e--get-current-log-line-level)))
|
|
level))
|
|
|
|
(defun log4e:previous-log ()
|
|
"Move to start of previous log on log4e-mode."
|
|
(interactive)
|
|
(let* ((level))
|
|
(while (and (not level)
|
|
(> (point) (point-min)))
|
|
(forward-line -1)
|
|
(setq level (log4e--get-current-log-line-level)))
|
|
level))
|
|
|
|
;;;###autoload
|
|
(defun log4e:insert-start-log-quickly ()
|
|
"Insert logging statment for trace level log at start of current function/macro."
|
|
(interactive)
|
|
(let* ((fstartpt (when (re-search-backward "(\\(?:defun\\|defmacro\\|defsubst\\)\\*? +\\([^ ]+\\) +(\\([^)]*\\))" nil t)
|
|
(point)))
|
|
(fncnm (when fstartpt (match-string-no-properties 1)))
|
|
(argtext (when fstartpt (match-string-no-properties 2)))
|
|
(prefix (save-excursion
|
|
(goto-char (point-min))
|
|
(cl-loop while (re-search-forward "(log4e:deflogger[ \n]+\"\\([^\"]+\\)\"" nil t)
|
|
for prefix = (match-string-no-properties 1)
|
|
for currface = (get-text-property (match-beginning 0) 'face)
|
|
if (not (eq currface 'font-lock-comment-face))
|
|
return prefix))))
|
|
(when (and fstartpt prefix)
|
|
(let* ((fncnm (replace-regexp-in-string (concat "\\`" prefix "[^a-zA-Z0-9]+") "" fncnm))
|
|
(fncnm (replace-regexp-in-string "-" " " fncnm))
|
|
(argtext (replace-regexp-in-string "\n" " " argtext))
|
|
(argtext (replace-regexp-in-string "^ +" "" argtext))
|
|
(argtext (replace-regexp-in-string " +$" "" argtext))
|
|
(args (split-string argtext " +"))
|
|
(args (cl-loop for arg in args
|
|
if (and (not (string= arg ""))
|
|
(not (string-match "\\`&" arg)))
|
|
collect arg))
|
|
(logtext (cl-loop with ret = (format "start %s." fncnm)
|
|
for arg in args
|
|
do (setq ret (concat ret " " arg "[%s]"))
|
|
finally return ret))
|
|
(sexpformat (cl-loop with ret = "(%s--log 'trace \"%s\""
|
|
for arg in args
|
|
do (setq ret (concat ret " %s"))
|
|
finally return (concat ret ")")))
|
|
(inserttext (apply 'format sexpformat prefix logtext args)))
|
|
(forward-char)
|
|
(forward-sexp 3)
|
|
(when (re-search-forward "\\=[ \n]+\"" nil t)
|
|
(forward-char -1)
|
|
(forward-sexp))
|
|
(newline-and-indent)
|
|
(insert inserttext)))))
|
|
|
|
|
|
(provide 'log4e)
|
|
;;; log4e.el ends here
|