diff options
| -rw-r--r-- | doc/rt-liber.texinfo | 927 | ||||
| -rw-r--r-- | rt-liber.info | 2042 |
2 files changed, 2969 insertions, 0 deletions
diff --git a/doc/rt-liber.texinfo b/doc/rt-liber.texinfo new file mode 100644 index 0000000..b8cb1f5 --- /dev/null +++ b/doc/rt-liber.texinfo @@ -0,0 +1,927 @@ +\input texinfo @c -*-texinfo-*- +@c %**start of header +@setfilename rt-liber.info +@settitle The rt-liberation Manual +@c %**end of header + +@c History: This manual was started on the 6th of April 2009. Yoni +@c Rabkin (yrk@gnu.org) is the primary author. + +@dircategory Emacs +@direntry +* rt-liberation: (rt-liber). Emacs Interface to RT +@end direntry + + +@copying + @copyright{} 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2020 Free Software Foundation, Inc. + +@quotation +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no +Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A +copy of the license is included in the section entitled ``GNU Free +Documentation License''. +@end quotation +@end copying + + +@c For printed material +@titlepage +@title The rt-liberation Manual +@page +@vskip 0pt plus 1filll +@insertcopying +@end titlepage +@contents +@c END For printed material + + +@ifnottex +@node Top, Introduction, (dir), (dir) +@top The rt-liberation Manual + +This is the Manual for the rt-liberation system + +@insertcopying + +@menu +* Introduction:: Introduction to rt-liberation. +* Installation:: Setup rt-liberation to work on the system. + +Using rt-liberation +* Queries:: Retrieve particular tickets from the server. +* Ticket Browser:: Browse the query results. +* Ticket Viewer:: Interface to query results. + +Extensions +* Gnus Integration:: Sending email to the RT server via Gnus. +* Tracking Updates:: Keeping up to date with ticket changes. +* Batch Operations:: Performing operations on batches of tickets. +* Local Storage:: Associate arbitrary data with tickets. + +Copying and license +* Copying:: The GNU General Public License gives you + permission to redistribute rt-liberation + on certain terms; it also explains that + there is no warranty. + +* The GNU FDL:: The license for this documentation. + +Indices +* Concept Index:: +* Function Index:: +* Variable Index:: +* Keybinding Index:: + +@detailmenu + --- The Detailed Node Listing --- + +Queries + +* Query Compiler:: Compiling Emacs Lisp to TicketSQL. +* Query Language:: A description of the Sexp-based language. + +Ticket Browser + +* Ticket Browser Display:: How tickets are displayed in the browser. +* Ticket Browser Sorting:: How tickets are sorted in the browser. +* Ticket Browser Filtering:: How to filter tickets out of the browser. +* Multiple Ticket Browsers:: More than one ticket browser buffer. + +@end detailmenu +@end menu + +@end ifnottex + + +@c -------------------------------------------------- +@node Introduction +@chapter Introduction +@cindex introduction + +rt-liberation is a GNU/Emacs package for working with the Request +Tracker (henceforth abbreviated as just ``RT'') software from Best +Practical Solutions. RT has an interactive Web interface, a command +line interface (the ``RT CLI''), and a REST interface. rt-liberation +uses the RT REST interface to communicate with the RT server. + +rt-liberation allows sending search queries to the RT server, browsing +the resulting tickets, viewing the tickets' contents and performing +operations on the tickets. + + +@c -------------------------------------------------- +@node Installation +@chapter Installation +@cindex installation + +rt-liberation is available via GNU ELPA. + +If you install rt-liberation manually instead you'll need to tell +Emacs where to find it, and tell Emacs to load the package: + +@lisp +(add-to-list 'load-path "/PATH/TO/rt-liberation/") +@end lisp + +@lisp +(require 'rt-liberation) +@end lisp + + +rt-liberation needs to be configured in your ~/.emacs, an ~/.rt-liber +file, or similar. + +Tell rt-liberation where to find the RT server's REST interface: + +@lisp +(setq rt-liber-rest-url "rt.example.org") +@end lisp + +rt-liberation can issue a command to ``take'' a ticket (that is, +assign it to yourself). For this the variable @var{rt-liber-username} +must be set: + +@lisp +(setq rt-liber-username "someuser") +@end lisp + +rt-liberation can also launch a Web browser to visit a ticket. For +that to work the base URL needs to be set in +@var{rt-liber-base-url}. For example: + +(setq rt-liber-base-url "https://rt.foo.org/") + + +@c -------------------------------------------------- +@node Queries +@chapter Queries +@cindex queries + +A typical RT server is meant to manage a large amount of tickets. Much +more that would be convenient to view all at once. Instead queries are +used to view only a subset of the tickets on the server. + +rt-liberation has its own Sexp-based query language which maps to RT's +TicketSQL language. + +@menu +* Query Compiler:: Compiling Emacs Lisp to TicketSQL. +* Query Language:: A description of the Sexp-based language. +@end menu + + +@c -------------------------------------------------- +@node Query Compiler +@section Query Compiler +@cindex query compiler + +In order to browse and view tickets a list of needs to be requested +from the RT server. Typically the tickets answer some kind of +criteria, for example ``tickets no older than a week owned by me which +have \``foobar\'' in their subject line''. In RT these criteria are +formulated with ``TicketSQL'' queries; a structured query language +specific to RT. + +rt-liberation provides a query compiler function to compile Emacs Lisp +symbolic expressions into TicketSQL. The query compiler supports a +number of TicketSQL tokens. + + +@c -------------------------------------------------- +@node Query Language +@section Query Language +@cindex query language + +rt-liberation's Sexp-based query language covers a portion of the +TicketSQL language. Here are some of the supported TicketSQL tokens: +Boolean tokens as a means of combining query subsections: ``and'', ``or'', +``not''. LIKE attribute tokens: ``subject'', ``content''. + +For example here is a query with both Boolean and LIKE tokens: + +@lisp +(rt-liber-compile-query + (and (queue "bugs") + (content "gnu"))) + +==> "Queue = 'bugs' AND Content LIKE 'gnu'" +@end lisp + +We can also express negation (note that the compiler produces "!=" and +"NOT LIKE" for negation depending on the context): + +@lisp +(rt-liber-compile-query + (and (queue "bugs") + (not (owner "Nobody")) + (not (content "sprigz")) + (status "new"))) + +==> "Queue = 'licensing' AND Owner != 'Nobody' \ + AND Content NOT LIKE 'sprigz' AND Status = 'new'" +@end lisp + +Attribute tokens which match an attribute to a specific field such as: +``owner'', ``status'' and ``queue''. Temporal tokens which limit the search +results to tickets within a certain time interval: ``created'' and +``lastupdated''. Note that temporal keywords such as ``created'' always +accept two arguments: BEFORE and AFTER. When either BEFORE or AFTER +aren't needed, use NIL instead. + +One of the advantages of being able to express the TicketSQL queries +as Emacs Lisp is to be able to express queries using Emacs Lisp +functions. + +Here is a slightly more involved example to illustrate: + +@lisp +(rt-liber-compile-query + (and (queue "bugs") + (owner "me@@myaddress.com") + (status "open") + (lastupdated nil + (format-time-string + "%Y-%m-%d" + (seconds-to-time + (- (time-to-seconds (current-time)) + (* 60 60 24 7))))))) + +==> "Queue = 'bugs' AND Owner = 'me@@myaddress.com' AND Status = 'open' AND LastUpdated > '2009-03-30'" +@end lisp + + +Here is an example of how the ticket browser and compiler can be used +in function calls: + +@lisp +(defun rt-liber-display-ticket (ticket-id) + "Display ticket with TICKET-ID in the ticket-browser." + (interactive "MTicket ID: ") + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (id ticket-id))))) +@end lisp + + +@c -------------------------------------------------- +@node Ticket Browser +@chapter Ticket Browser +@cindex ticket browser + +The ticket browser is a special buffer which provides a convenient +interface to the results of a server query. The ticket browser can be +started by invoking: (rt-liber-browse-query QUERY), where QUERY is a +TicketSQL query. The TicketSQL query can be entered manually as a +string or as the return value of the query compiler. + +@deffn Function rt-liber-browse-query QUERY &optional NEW +Runs QUERY against the server and launches the browser. + +If NEW is non-nil then the query results will be displayed in a new +buffer, otherwise the query results will override the contents of the +existing ticket browser buffer. If NEW is a string then that will be +the name of the new buffer. +@end deffn + +The TicketSQL query can be the return value of the query compiler. For +example: + +@lisp +(rt-liber-browse-query + (rt-liber-compile-query + (and (queue "bugs") + (content "gnu"))) +@end lisp + + +Since the return value of the query compiler is just a TicketSQL +string, the following is equivalent: + +@lisp +(rt-liber-browse-query "Queue = 'bugs' AND Content LIKE 'gnu'") +@end lisp + +The ticket browser defines a number of commands: + +@table @kbd +@item q +@kindex q (ticket browser) +@findex rt-liber-browser-mode-quit +Bury the ticket browser buffer. + +@item n +@kindex n (ticket browser) +@findex rt-liber-next-ticket-in-browser +Move point to the next ticket. + +@item p +@kindex p (ticket browser) +@findex rt-liber-previous-ticket-in-browser +Move point to the previous ticket. + +@item RET +@kindex RET (ticket browser) +@findex rt-liber-display-ticket-at-point +Visit the ticket at point in the @xref{Ticket Viewer}. + +@item g +@kindex g (ticket browser) +@findex revert-buffer +Refresh the contents of the browser buffer. + +@item G +@kindex G (ticket browser) +@findex rt-liber-browser-refresh-and-return +Refresh the contents of the browser buffer. Return point to the +current ticket after the refresh (if possible). + +@item s +@kindex s (ticket browser) +@findex rt-liber-browser-mark-as-spam +Mark the ticket as spam. + +@item S +@kindex S (ticket browser) +@findex rt-liber-multi-delete-spam +Delete marked tickets as spam (requires rt-liberation-multi package). + +@item a +@kindex a (ticket browser) +@findex rt-liber-browser-assign +Assign the ticket to a user. + +@item r +@kindex r (ticket browser) +@findex rt-liber-browser-resolve +Mark the ticket as ``resolved''. + +@item o +@kindex o (ticket browser) +@findex rt-liber-browser-open +Mark the ticket as ``open''. + +@item t +@kindex t (ticket browser) +@findex rt-liber-browser-take-ticket-at-point +Assign the ticket at point to @var{rt-liber-username}. + +@item SPC +@kindex SPC (ticket browser) +@findex scroll-up +Scroll the text of the ticket browser upward. + +@item DEL +@kindex DEL (ticket browser) +@findex scroll-down +Scroll the text of the ticket browser downward. + +@item m +@kindex m (ticket browser) +@findex rt-liber-browser-move +Move the ticket to a different queue. + +@item P +@kindex P (ticket browser) +@findex rt-liber-browser-prioritize +Set the numerical priority level of the ticket at point. + +@end table + +@menu +* Ticket Browser Display:: How tickets are displayed in the browser. +* Ticket Browser Sorting:: How tickets are sorted in the browser. +* Ticket Browser Filtering:: How to filter tickets out of the browser. +* Multiple Ticket Browsers:: More than one ticket browser buffer. +@end menu + + +@c -------------------------------------------------- +@node Ticket Browser Display +@section Ticket Browser Display +@cindex ticket browser display function + +The ticket browser displays the tickets in the browser by calling +@dfn{rt-liber-ticketlist-browser-redraw-f} which can be changed and +customized. Any implementation of +@dfn{rt-liber-ticketlist-browser-redraw-f} must leave point at the end +of the ticket text. + +The ticket data itself can be displayed using rt-liberation ticket +format string %-sequences: + +@table @asis +@item %i +ID number of the ticket in the RT database. +@item %s +Subject line. +@item %c +Ticket creation time. The format to display the time is specified in +the variable @var{rt-liber-browser-time-format-string}. +@item %S +Ticket status (``open'', ``new'' etc.) +@item %r +Whether the ticket is resolved. +@item %R +Requestor/s +@item %C +Creator of the ticket. +@item %o +Owner of the ticket. +@item %q +The queue originating the ticket. +@item %p +The numerical priority of the ticket +@end table + +Here is an example implementation of +@dfn{rt-liber-ticketlist-browser-redraw-f} showing the use of the +%-sequences. Note the use of text properties to add color to ticket +text. The use of text properties as opposed to font-locking is meant +to ease customization because otherwise any change in ticket display +would break the font-locking regular expressions. + +@lisp +(defun rt-liber-ticketlist-browser-redraw-f (ticket) + "Display TICKET." + (insert (rt-liber-format "[%c] %i" ticket)) + (add-text-properties (point-at-bol) + (point-at-eol) + '(face rt-liber-ticket-face)) + (newline) + (insert (rt-liber-format " [%S] %s" ticket)) + (newline) + (insert (rt-liber-format " %o <== %R" ticket))) +@end lisp + +The function @dfn{rt-liber-high-priority-p} can be used to apply a +different face or text to a ticket if it is high priority. A ticket is +considered high priority if its value is strictly higher than +@var{rt-liber-browser-priority-cutoff} + + +@c -------------------------------------------------- +@node Ticket Browser Sorting +@section Ticket Browser Sorting +@cindex ticket browser sorting + +The tickets in the browser are displayed by default in reverse +chronological order. Ticket sorting is done by a call to +@dfn{rt-liber-browser-default-sorting-function}. + +Other sorting orders can be used by binding +@dfn{rt-liber-browser-default-sorting-function} to a different +function. To ease writing such functions rt-liberation provides two +predicate functions to perform comparisons between ticket objects: + +@defun rt-liber-lex-lessthan-p a b field +Return true if A is lexicographically less than B in FIELD. + +Here is an example of sorting tickets lexicographically by owner name +using @dfn{rt-liber-lex-lessthan-p} (note that you can feed +@dfn{rt-liber-lex-lessthan-p} a date/time string and it will sort it +just fine except that it wouldn't make any sense): + +@lisp +(defun rt-liber-sort-by-owner (ticket-list) + "Sort TICKET-LIST lexicographically by owner." + (rt-liber-sort-ticket-list + ticket-list + #'(lambda (a b) + (rt-liber-lex-lessthan-p a b "Owner")))) +@end lisp + +@end defun + +@defun rt-liber-time-lessthan-p a b field +Return t if A is chronologically less than B in FIELD. + +Here is an example of sorting tickets lexicographically by owner name +using @dfn{rt-liber-time-lessthan-p} (note that feeding +@dfn{rt-liber-time-lessthan-p} anything but a date/time string, in +this case ``Created'' contains a date, will result in an error being +signaled). + +@lisp +(defun rt-liber-sort-by-time-created (ticket-list) + "Sort TICKET-LIST in reverse chronological order." + (reverse + (rt-liber-sort-ticket-list + ticket-list + #'(lambda (a b) + (rt-liber-time-lessthan-p a b "Created"))))) +@end lisp + +@end defun + + +@c ------------------------------------------------------------------- +@node Ticket Browser Filtering +@section Ticket Browser Filtering +@cindex ticket browser filtering filter + +The Ticket Browser can also filter out (that is, not display) certain +tickets based on particular criteria. This probably shouldn't be used +instead of a properly formed RT query, but when used in conjunction +with correctly formulated queries it becomes a powerful tool. + +During ticket display processing the Ticket Browser will call the +function pointed to by @var{rt-liber-browser-default-filter-function} +on each ticket, passing the function the ticket alist as a single +argument. The function is set by default to +@dfn{rt-liber-default-filter-f}, which is a function which will +display all tickets and filter none. + +If any tickets are filtered, the Ticket Browser will display the +filtered ticket count at the bottom ticket listing. + +Here is a simple example of how to filter out all of the tickets which +have a status of ``deleted''. + +First we define a custom filter function. Note how it accepts a single +argument, which is the ticket alist, and returns nil if the ticket is +to be filtered. + +@lisp +(defun rt-liber-browser-deleted-filter (ticket) + (not + (and ticket + (string= (cdr (assoc "Status" ticket)) + "deleted")))) +@end lisp + +Then we assign that function to be our default filtering function: + +@lisp +(setq rt-liber-browser-default-filter-function + 'rt-liber-browser-deleted-filter) +@end lisp + + +@c ------------------------------------------------------------------- +@node Multiple Ticket Browsers +@section Multiple Ticket Browsers +@cindex ticket browser multiple buffer + +It is sometimes useful to rename the ticket browser buffer to +something more informative than the default +@var{rt-liber-browser-buffer-name}, especially if there are multiple +ticket browsers. + +Changing a ticket browser's name can be done normally with +`rename-buffer', but it is also possible to name the ticket browser +when it is created. In the following example two ticket browser +buffers will be created displaying the query results and named +``*updated by supervisor*'' and ``*new tickets*'' respectively: + +@lisp +(defun rt-liber-daily-rounds () + (interactive) + + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (owner "lem.e.tweakit") + (status "open") + (lastupdatedby "molly.manager"))) + "*updated by supervisor*") + + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (owner "Nobody") + (status "new"))) + "*new tickets*")) +@end lisp + + +@c -------------------------------------------------- +@node Ticket Viewer +@chapter Ticket Viewer +@cindex ticket viewer + +The ticket viewer is an interface for viewing the contents of a +ticket. It provides font-locking to make reading the contents easier +via @var{rt-liber-viewer-font-lock-keywords} and a number of +key-bindings. + +The ticket viewer provides key-bindings to help compose emails to send +to the RT email interface. The key-bindings for composing email +described below are generic, what actually happens when you invoke +them depends on the email-backend system you have installed into +rt-liberation. @file{rt-liberation-gnus.el} provides integration with +Gnus, @xref{Gnus Integration}. + +Setting @var{rt-liber-jump-to-latest} to `t' will cause the viewer to +automatically scroll to the latest comment in a ticket when that +ticket is visited. By default @var{rt-liber-jump-to-latest} is set to +`nil'. + +When in the ticket viewer buffer, invoking +@dfn{rt-liber-viewer-take-ticket} will ``take'' the ticket. + +@table @kbd + +@item q +@kindex q (ticket viewer) +@findex rt-liber-viewer-mode-quit +Bury the ticket viewer buffer. + +@item n +@kindex n (ticket viewer) +@findex rt-liber-next-section-in-viewer +Move point to the next section in ticket. + +@item N +@kindex N (ticket viewer) +@findex rt-liber-jump-to-latest-correspondence +Move point to the newest correspondence section, if any. + +@item p +@kindex p (ticket viewer) +@findex rt-liber-previous-section-in-viewer +Move point to the previous section in ticket. + +@item V +@kindex V (ticket viewer) +@findex rt-liber-viewer-visit-in-browser +Visit the current ticket in a Web browser. + +@item m +@kindex m (ticket viewer) +@findex rt-liber-viewer-answer +Compose an answer to the current ticket. + +@item M +@kindex M (ticket viewer) +@findex rt-liber-viewer-answer-this +Compose an answer to the current ticket. The content section around +point will be inserted into the email body and commented out. + +@item t +@kindex t (ticket viewer) +@findex rt-liber-viewer-answer-provisionally +Compose a provisional answer to the current ticket. + +@item T +@kindex t (ticket viewer) +@findex rt-liber-viewer-answer-provisionally-this +Compose a provisional answer to the current ticket. The content +section around point will be inserted into the email body and +commented out. + +@item F +@kindex F (ticket viewer) +@findex rt-liber-viewer-answer-verbatim-this +Compose an answer to the current ticket. The content section around +point will be inserted into the email body verbatim. + +@item c +@kindex c (ticket viewer) +@findex rt-liber-viewer-comment +Compose a comment for the current ticket. + +@item C +@kindex C (ticket viewer) +@findex rt-liber-viewer-comment-this +Comment on the ticket using the current context + +@item g +@kindex g (ticket viewer) +@findex revert-buffer +Refresh and redisplay the current ticket. + +@item SPC +@kindex SPC (ticket viewer) +@findex scroll-up +Scroll text of ticket viewer upward. + +@item DEL +@kindex DEL (ticket viewer) +@findex scroll-down +Scroll text of ticket viewer downward. + +@item h +@kindex h (ticket viewer) +@findex rt-liber-viewer-show-ticket-browser +Display the associated ticket in the ticket browser. + +@end table + + +@c -------------------------------------------------- +@node Gnus Integration +@chapter Gnus Integration +@cindex Gnus Integration + +The file @file{rt-liberation-gnus.el} implements integration with Gnus +for composing emails. To enable the feature, `require' it after +loading rt-liberation: + +@lisp +(require 'rt-liberation-gnus) +@end lisp + +In order for rt-liberation-gnus to be useful a few variables need to +be specialized. The following is example code which sets these +variables. Below is a thorough description of those variables. + +@lisp +(setq rt-liber-gnus-comment-address "our-rtserver-comment@@ourserver.org" + rt-liber-gnus-address "our-rtserver@@ourserver.org" + rt-liber-gnus-subject-name "ourserver.org") +@end lisp + +@defopt rt-liber-gnus-address +@var{rt-liber-gnus-address} is the email address which is configured +in the RT server email interface for sending a response to the +ticket's requestor. +@end defopt +@defopt rt-liber-gnus-comment-address +@var{rt-liber-gnus-comment-address} is the email address which is +configured in the RT server email interface for adding a comment under +the ticket in question. +@end defopt +@defopt rt-liber-gnus-subject-name +@var{rt-liber-gnus-subject-name} is a string, typically included at +the beginning of the square brackets in the subject. The string is a +part of the subject line which helps the RT server recognize the +email. +@end defopt + +Gnus posting styles controlled by @var{gnus-posting-styles} can be +customized for rt-liberation-gnus by using the variable +@var{rt-liber-gnus-p}, which is only non-nil when rt-liberation-gnus +launches a Gnus message buffer. + +Here is example code which uses @var{rt-liber-gnus-p} to override the +signature in the default posting style with one special to +rt-liberation. Headers can be added and removed in a similar manner. + +@lisp +(setq gnus-posting-styles + '((".*" + (name "Lemm E. Hackitt") + (address "Lemm@@hack.it") + (signature-file "~/sig.txt") + ("X-Ethics" "Use GNU")) + (rt-liber-gnus-p + (signature-file "~/rt-liber-sig.txt")))) +@end lisp + + +Once rt-liberation-gnus is loaded and customized the key-bindings in +the Viewer will be able to call into it, @xref{Ticket Viewer}. + + +@c -------------------------------------------------- +@node Tracking Updates +@chapter Tracking Updates +@cindex Tracking Updates + +The functions in @file{rt-liberation-update.el} help keep up with +updates to the ticket database. To enable the feature, `require' it +after loading rt-liberation: + +@lisp +(require 'rt-liberation-update) +@end lisp + +Then set @var{rt-liber-update-default-queue} to be the name of the +queue to watch for updates. For example: + +@lisp +(setq rt-liber-update-default-queue "complaints") +@end lisp + +@defun rt-liber-update &optional no-update +@code{rt-liber-update} is an interactive function which runs a query +against the RT server asking for the tickets which have been updated +since the time @code{rt-liber-update} was last run (each time it runs, +it leaves a time-stamp). If no time-stamp is found, for instance when +you run @code{rt-liber-update} for the first time, today's date is +used. + +With the NO-UPDATE prefix, @code{rt-liber-update} will not update the +time-stamp so that the next invocation will produce the same result. +@end defun + + +@c -------------------------------------------------- +@node Batch Operations +@chapter Batch Operations +@cindex Batch Operations + +The extension @file{rt-liberation-multi.el} implements performing +batch operations on groups of tickets. It works in two stages: First +mark an arbitrary number of tickets within the same buffer then call a +batch operation function on them. The batch operation functions work +the same way as function which work on single tickets only that they +iterate through all of the marked tickets. + +To enable batch operations first load @file{rt-liberation-multi.el}: + +@lisp +(require 'rt-liberation-storage) +@end lisp + +@table @kbd +@item M +@kindex M (ticket browser) +@findex rt-liber-mark-ticket-at-point +Mark the ticket at point for future action. If the ticket at point is +already marked then unmark it. +@end table + +@defun rt-liber-multi-set-status-open +Set the status of all the marked tickets to ``open''. +@end defun + +@defun rt-liber-multi-set-status-resolved +Set the status of all the marked tickets to ``resolved. +@end defun + +@defun rt-liber-multi-assign name +Assign all of the marked tickets to NAME. +@end defun + +@defun rt-liber-multi-flag-as-spam-and-delete +Set the status of all the marked tickets to ``is-spam'' and delete. +@end defun + + +@c -------------------------------------------------- +@node Local Storage +@chapter Local Storage +@cindex Local Storage + +@file{rt-liberation-storage.el} implements associating arbitrary +ancillary data with tickets. The data is stored locally and is not +sent to the RT server. + +To enable local storage first load @file{rt-liberation-storage.el}: + +@lisp +(require 'rt-liberation-storage) +@end lisp + +Then enable the display of ancillary data with: + +@lisp +(setq rt-liber-anc-p t) +@end lisp + +The associated data is edited and displayed in the ticket browser with +the following command key: + +@table @kbd +@item A +@kindex A (ticket browser) +@findex rt-liber-browser-ancillary-text +Associate text with the ticket at point. You will be prompted to enter +a string of text. +@end table + +Once text is associated with a ticket it will be displayed alongside +that ticket in the ticket browser. This particular feature lends +itself to creating private annotations about tickets. + +The implementation distributed with rt-liberation allows associating +text with tickets but is not limited to text. The same implementation +can be extended to associate any arbitrary data with any ticket. + + +@c -------------------------------------------------- +@c including the relevant licenses +@include gpl.texi +@include fdl.texi + + +@c -------------------------------------------------- +@node Concept Index +@unnumbered Concept Index +@printindex cp + + +@c -------------------------------------------------- +@node Function Index +@unnumbered Function Index +@printindex fn + + +@c -------------------------------------------------- +@node Variable Index +@unnumbered Variable Index +@printindex vr + + +@c -------------------------------------------------- +@node Keybinding Index +@unnumbered Keybinding Index +@printindex ky + + +@bye diff --git a/rt-liber.info b/rt-liber.info new file mode 100644 index 0000000..f712b66 --- /dev/null +++ b/rt-liber.info @@ -0,0 +1,2042 @@ +This is rt-liber.info, produced by makeinfo version 6.1 from +rt-liber.texinfo. + +(C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2020 Free Software +Foundation, Inc. + + Permission is granted to copy, distribute and/or modify this + document under the terms of the GNU Free Documentation License, + Version 1.2 or any later version published by the Free Software + Foundation; with no Invariant Sections, no Front-Cover Texts, and + no Back-Cover Texts. A copy of the license is included in the + section entitled "GNU Free Documentation License". +INFO-DIR-SECTION Emacs +START-INFO-DIR-ENTRY +* rt-liberation: (rt-liber). Emacs Interface to RT +END-INFO-DIR-ENTRY + + +File: rt-liber.info, Node: Top, Next: Introduction, Prev: (dir), Up: (dir) + +The rt-liberation Manual +************************ + +This is the Manual for the rt-liberation system + + (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2020 Free Software +Foundation, Inc. + + Permission is granted to copy, distribute and/or modify this + document under the terms of the GNU Free Documentation License, + Version 1.2 or any later version published by the Free Software + Foundation; with no Invariant Sections, no Front-Cover Texts, and + no Back-Cover Texts. A copy of the license is included in the + section entitled "GNU Free Documentation License". + +* Menu: + +* Introduction:: Introduction to rt-liberation. +* Installation:: Setup rt-liberation to work on the system. + +Using rt-liberation +* Queries:: Retrieve particular tickets from the server. +* Ticket Browser:: Browse the query results. +* Ticket Viewer:: Interface to query results. + +Extensions +* Gnus Integration:: Sending email to the RT server via Gnus. +* Tracking Updates:: Keeping up to date with ticket changes. +* Batch Operations:: Performing operations on batches of tickets. +* Local Storage:: Associate arbitrary data with tickets. + +Copying and license +* Copying:: The GNU General Public License gives you + permission to redistribute rt-liberation + on certain terms; it also explains that + there is no warranty. + +* The GNU FDL:: The license for this documentation. + +Indices +* Concept Index:: +* Function Index:: +* Variable Index:: +* Keybinding Index:: + + -- The Detailed Node Listing -- + +Queries + +* Query Compiler:: Compiling Emacs Lisp to TicketSQL. +* Query Language:: A description of the Sexp-based language. + +Ticket Browser + +* Ticket Browser Display:: How tickets are displayed in the browser. +* Ticket Browser Sorting:: How tickets are sorted in the browser. +* Ticket Browser Filtering:: How to filter tickets out of the browser. +* Multiple Ticket Browsers:: More than one ticket browser buffer. + + + +File: rt-liber.info, Node: Introduction, Next: Installation, Up: Top + +1 Introduction +************** + +rt-liberation is a GNU/Emacs package for working with the Request +Tracker (henceforth abbreviated as just "RT") software from Best +Practical Solutions. RT has an interactive Web interface, a command +line interface (the "RT CLI"), and a REST interface. rt-liberation uses +the RT REST interface to communicate with the RT server. + + rt-liberation allows sending search queries to the RT server, +browsing the resulting tickets, viewing the tickets' contents and +performing operations on the tickets. + + +File: rt-liber.info, Node: Installation, Next: Queries, Prev: Introduction, Up: Top + +2 Installation +************** + +rt-liberation is available via GNU ELPA. + + If you install rt-liberation manually instead you'll need to tell +Emacs where to find it, and tell Emacs to load the package: + + (add-to-list 'load-path "/PATH/TO/rt-liberation/") + + (require 'rt-liberation) + + rt-liberation needs to be configured in your ~/.emacs, an ~/.rt-liber +file, or similar. + + Tell rt-liberation where to find the RT server's REST interface: + + (setq rt-liber-rest-url "rt.example.org") + + rt-liberation can issue a command to "take" a ticket (that is, assign +it to yourself). For this the variable RT-LIBER-USERNAME must be set: + + (setq rt-liber-username "someuser") + + rt-liberation can also launch a Web browser to visit a ticket. For +that to work the base URL needs to be set in RT-LIBER-BASE-URL. For +example: + + (setq rt-liber-base-url "https://rt.foo.org/") + + +File: rt-liber.info, Node: Queries, Next: Ticket Browser, Prev: Installation, Up: Top + +3 Queries +********* + +A typical RT server is meant to manage a large amount of tickets. Much +more that would be convenient to view all at once. Instead queries are +used to view only a subset of the tickets on the server. + + rt-liberation has its own Sexp-based query language which maps to +RT's TicketSQL language. + +* Menu: + +* Query Compiler:: Compiling Emacs Lisp to TicketSQL. +* Query Language:: A description of the Sexp-based language. + + +File: rt-liber.info, Node: Query Compiler, Next: Query Language, Up: Queries + +3.1 Query Compiler +================== + +In order to browse and view tickets a list of needs to be requested from +the RT server. Typically the tickets answer some kind of criteria, for +example "tickets no older than a week owned by me which have \"foobar\" +in their subject line". In RT these criteria are formulated with +"TicketSQL" queries; a structured query language specific to RT. + + rt-liberation provides a query compiler function to compile Emacs +Lisp symbolic expressions into TicketSQL. The query compiler supports a +number of TicketSQL tokens. + + +File: rt-liber.info, Node: Query Language, Prev: Query Compiler, Up: Queries + +3.2 Query Language +================== + +rt-liberation's Sexp-based query language covers a portion of the +TicketSQL language. Here are some of the supported TicketSQL tokens: +Boolean tokens as a means of combining query subsections: "and", "or", +"not". LIKE attribute tokens: "subject", "content". + + For example here is a query with both Boolean and LIKE tokens: + + (rt-liber-compile-query + (and (queue "bugs") + (content "gnu"))) + + ==> "Queue = 'bugs' AND Content LIKE 'gnu'" + + We can also express negation (note that the compiler produces "!=" +and "NOT LIKE" for negation depending on the context): + + (rt-liber-compile-query + (and (queue "bugs") + (not (owner "Nobody")) + (not (content "sprigz")) + (status "new"))) + + ==> "Queue = 'licensing' AND Owner != 'Nobody' \ + AND Content NOT LIKE 'sprigz' AND Status = 'new'" + + Attribute tokens which match an attribute to a specific field such +as: "owner", "status" and "queue". Temporal tokens which limit the +search results to tickets within a certain time interval: "created" and +"lastupdated". Note that temporal keywords such as "created" always +accept two arguments: BEFORE and AFTER. When either BEFORE or AFTER +aren't needed, use NIL instead. + + One of the advantages of being able to express the TicketSQL queries +as Emacs Lisp is to be able to express queries using Emacs Lisp +functions. + + Here is a slightly more involved example to illustrate: + + (rt-liber-compile-query + (and (queue "bugs") + (owner "me@myaddress.com") + (status "open") + (lastupdated nil + (format-time-string + "%Y-%m-%d" + (seconds-to-time + (- (time-to-seconds (current-time)) + (* 60 60 24 7))))))) + + ==> "Queue = 'bugs' AND Owner = 'me@myaddress.com' AND Status = 'open' AND LastUpdated > '2009-03-30'" + + Here is an example of how the ticket browser and compiler can be used +in function calls: + + (defun rt-liber-display-ticket (ticket-id) + "Display ticket with TICKET-ID in the ticket-browser." + (interactive "MTicket ID: ") + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (id ticket-id))))) + + +File: rt-liber.info, Node: Ticket Browser, Next: Ticket Viewer, Prev: Queries, Up: Top + +4 Ticket Browser +**************** + +The ticket browser is a special buffer which provides a convenient +interface to the results of a server query. The ticket browser can be +started by invoking: (rt-liber-browse-query QUERY), where QUERY is a +TicketSQL query. The TicketSQL query can be entered manually as a +string or as the return value of the query compiler. + + -- Function: rt-liber-browse-query QUERY &optional NEW + Runs QUERY against the server and launches the browser. + + If NEW is non-nil then the query results will be displayed in a new + buffer, otherwise the query results will override the contents of + the existing ticket browser buffer. If NEW is a string then that + will be the name of the new buffer. + + The TicketSQL query can be the return value of the query compiler. +For example: + + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "bugs") + (content "gnu"))) + + Since the return value of the query compiler is just a TicketSQL +string, the following is equivalent: + + (rt-liber-browse-query "Queue = 'bugs' AND Content LIKE 'gnu'") + + The ticket browser defines a number of commands: + +'q' + Bury the ticket browser buffer. + +'n' + Move point to the next ticket. + +'p' + Move point to the previous ticket. + +'RET' + Visit the ticket at point in the *Note Ticket Viewer::. + +'g' + Refresh the contents of the browser buffer. + +'G' + Refresh the contents of the browser buffer. Return point to the + current ticket after the refresh (if possible). + +'s' + Mark the ticket as spam. + +'S' + Delete marked tickets as spam (requires rt-liberation-multi + package). + +'a' + Assign the ticket to a user. + +'r' + Mark the ticket as "resolved". + +'o' + Mark the ticket as "open". + +'t' + Assign the ticket at point to RT-LIBER-USERNAME. + +'SPC' + Scroll the text of the ticket browser upward. + +'DEL' + Scroll the text of the ticket browser downward. + +'m' + Move the ticket to a different queue. + +'P' + Set the numerical priority level of the ticket at point. + +* Menu: + +* Ticket Browser Display:: How tickets are displayed in the browser. +* Ticket Browser Sorting:: How tickets are sorted in the browser. +* Ticket Browser Filtering:: How to filter tickets out of the browser. +* Multiple Ticket Browsers:: More than one ticket browser buffer. + + +File: rt-liber.info, Node: Ticket Browser Display, Next: Ticket Browser Sorting, Up: Ticket Browser + +4.1 Ticket Browser Display +========================== + +The ticket browser displays the tickets in the browser by calling +"rt-liber-ticketlist-browser-redraw-f" which can be changed and +customized. Any implementation of +"rt-liber-ticketlist-browser-redraw-f" must leave point at the end of +the ticket text. + + The ticket data itself can be displayed using rt-liberation ticket +format string %-sequences: + +%i + ID number of the ticket in the RT database. +%s + Subject line. +%c + Ticket creation time. The format to display the time is specified + in the variable RT-LIBER-BROWSER-TIME-FORMAT-STRING. +%S + Ticket status ("open", "new" etc.) +%r + Whether the ticket is resolved. +%R + Requestor/s +%C + Creator of the ticket. +%o + Owner of the ticket. +%q + The queue originating the ticket. +%p + The numerical priority of the ticket + + Here is an example implementation of +"rt-liber-ticketlist-browser-redraw-f" showing the use of the +%-sequences. Note the use of text properties to add color to ticket +text. The use of text properties as opposed to font-locking is meant to +ease customization because otherwise any change in ticket display would +break the font-locking regular expressions. + + (defun rt-liber-ticketlist-browser-redraw-f (ticket) + "Display TICKET." + (insert (rt-liber-format "[%c] %i" ticket)) + (add-text-properties (point-at-bol) + (point-at-eol) + '(face rt-liber-ticket-face)) + (newline) + (insert (rt-liber-format " [%S] %s" ticket)) + (newline) + (insert (rt-liber-format " %o <== %R" ticket))) + + The function "rt-liber-high-priority-p" can be used to apply a +different face or text to a ticket if it is high priority. A ticket is +considered high priority if its value is strictly higher than +RT-LIBER-BROWSER-PRIORITY-CUTOFF + + +File: rt-liber.info, Node: Ticket Browser Sorting, Next: Ticket Browser Filtering, Prev: Ticket Browser Display, Up: Ticket Browser + +4.2 Ticket Browser Sorting +========================== + +The tickets in the browser are displayed by default in reverse +chronological order. Ticket sorting is done by a call to +"rt-liber-browser-default-sorting-function". + + Other sorting orders can be used by binding +"rt-liber-browser-default-sorting-function" to a different function. To +ease writing such functions rt-liberation provides two predicate +functions to perform comparisons between ticket objects: + + -- Function: rt-liber-lex-lessthan-p a b field + Return true if A is lexicographically less than B in FIELD. + + Here is an example of sorting tickets lexicographically by owner + name using "rt-liber-lex-lessthan-p" (note that you can feed + "rt-liber-lex-lessthan-p" a date/time string and it will sort it + just fine except that it wouldn't make any sense): + + (defun rt-liber-sort-by-owner (ticket-list) + "Sort TICKET-LIST lexicographically by owner." + (rt-liber-sort-ticket-list + ticket-list + #'(lambda (a b) + (rt-liber-lex-lessthan-p a b "Owner")))) + + -- Function: rt-liber-time-lessthan-p a b field + Return t if A is chronologically less than B in FIELD. + + Here is an example of sorting tickets lexicographically by owner + name using "rt-liber-time-lessthan-p" (note that feeding + "rt-liber-time-lessthan-p" anything but a date/time string, in this + case "Created" contains a date, will result in an error being + signaled). + + (defun rt-liber-sort-by-time-created (ticket-list) + "Sort TICKET-LIST in reverse chronological order." + (reverse + (rt-liber-sort-ticket-list + ticket-list + #'(lambda (a b) + (rt-liber-time-lessthan-p a b "Created"))))) + + +File: rt-liber.info, Node: Ticket Browser Filtering, Next: Multiple Ticket Browsers, Prev: Ticket Browser Sorting, Up: Ticket Browser + +4.3 Ticket Browser Filtering +============================ + +The Ticket Browser can also filter out (that is, not display) certain +tickets based on particular criteria. This probably shouldn't be used +instead of a properly formed RT query, but when used in conjunction with +correctly formulated queries it becomes a powerful tool. + + During ticket display processing the Ticket Browser will call the +function pointed to by RT-LIBER-BROWSER-DEFAULT-FILTER-FUNCTION on each +ticket, passing the function the ticket alist as a single argument. The +function is set by default to "rt-liber-default-filter-f", which is a +function which will display all tickets and filter none. + + If any tickets are filtered, the Ticket Browser will display the +filtered ticket count at the bottom ticket listing. + + Here is a simple example of how to filter out all of the tickets +which have a status of "deleted". + + First we define a custom filter function. Note how it accepts a +single argument, which is the ticket alist, and returns nil if the +ticket is to be filtered. + + (defun rt-liber-browser-deleted-filter (ticket) + (not + (and ticket + (string= (cdr (assoc "Status" ticket)) + "deleted")))) + + Then we assign that function to be our default filtering function: + + (setq rt-liber-browser-default-filter-function + 'rt-liber-browser-deleted-filter) + + +File: rt-liber.info, Node: Multiple Ticket Browsers, Prev: Ticket Browser Filtering, Up: Ticket Browser + +4.4 Multiple Ticket Browsers +============================ + +It is sometimes useful to rename the ticket browser buffer to something +more informative than the default RT-LIBER-BROWSER-BUFFER-NAME, +especially if there are multiple ticket browsers. + + Changing a ticket browser's name can be done normally with +'rename-buffer', but it is also possible to name the ticket browser when +it is created. In the following example two ticket browser buffers will +be created displaying the query results and named "*updated by +supervisor*" and "*new tickets*" respectively: + + (defun rt-liber-daily-rounds () + (interactive) + + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (owner "lem.e.tweakit") + (status "open") + (lastupdatedby "molly.manager"))) + "*updated by supervisor*") + + (rt-liber-browse-query + (rt-liber-compile-query + (and (queue "complaints") + (owner "Nobody") + (status "new"))) + "*new tickets*")) + + +File: rt-liber.info, Node: Ticket Viewer, Next: Gnus Integration, Prev: Ticket Browser, Up: Top + +5 Ticket Viewer +*************** + +The ticket viewer is an interface for viewing the contents of a ticket. +It provides font-locking to make reading the contents easier via +RT-LIBER-VIEWER-FONT-LOCK-KEYWORDS and a number of key-bindings. + + The ticket viewer provides key-bindings to help compose emails to +send to the RT email interface. The key-bindings for composing email +described below are generic, what actually happens when you invoke them +depends on the email-backend system you have installed into +rt-liberation. 'rt-liberation-gnus.el' provides integration with Gnus, +*Note Gnus Integration::. + + Setting RT-LIBER-JUMP-TO-LATEST to 't' will cause the viewer to +automatically scroll to the latest comment in a ticket when that ticket +is visited. By default RT-LIBER-JUMP-TO-LATEST is set to 'nil'. + + When in the ticket viewer buffer, invoking +"rt-liber-viewer-take-ticket" will "take" the ticket. + +'q' + Bury the ticket viewer buffer. + +'n' + Move point to the next section in ticket. + +'N' + Move point to the newest correspondence section, if any. + +'p' + Move point to the previous section in ticket. + +'V' + Visit the current ticket in a Web browser. + +'m' + Compose an answer to the current ticket. + +'M' + Compose an answer to the current ticket. The content section + around point will be inserted into the email body and commented + out. + +'t' + Compose a provisional answer to the current ticket. + +'T' + Compose a provisional answer to the current ticket. The content + section around point will be inserted into the email body and + commented out. + +'F' + Compose an answer to the current ticket. The content section + around point will be inserted into the email body verbatim. + +'c' + Compose a comment for the current ticket. + +'C' + Comment on the ticket using the current context + +'g' + Refresh and redisplay the current ticket. + +'SPC' + Scroll text of ticket viewer upward. + +'DEL' + Scroll text of ticket viewer downward. + +'h' + Display the associated ticket in the ticket browser. + + +File: rt-liber.info, Node: Gnus Integration, Next: Tracking Updates, Prev: Ticket Viewer, Up: Top + +6 Gnus Integration +****************** + +The file 'rt-liberation-gnus.el' implements integration with Gnus for +composing emails. To enable the feature, 'require' it after loading +rt-liberation: + + (require 'rt-liberation-gnus) + + In order for rt-liberation-gnus to be useful a few variables need to +be specialized. The following is example code which sets these +variables. Below is a thorough description of those variables. + + (setq rt-liber-gnus-comment-address "our-rtserver-comment@ourserver.org" + rt-liber-gnus-address "our-rtserver@ourserver.org" + rt-liber-gnus-subject-name "ourserver.org") + + -- User Option: rt-liber-gnus-address + RT-LIBER-GNUS-ADDRESS is the email address which is configured in + the RT server email interface for sending a response to the + ticket's requestor. + -- User Option: rt-liber-gnus-comment-address + RT-LIBER-GNUS-COMMENT-ADDRESS is the email address which is + configured in the RT server email interface for adding a comment + under the ticket in question. + -- User Option: rt-liber-gnus-subject-name + RT-LIBER-GNUS-SUBJECT-NAME is a string, typically included at the + beginning of the square brackets in the subject. The string is a + part of the subject line which helps the RT server recognize the + email. + + Gnus posting styles controlled by GNUS-POSTING-STYLES can be +customized for rt-liberation-gnus by using the variable RT-LIBER-GNUS-P, +which is only non-nil when rt-liberation-gnus launches a Gnus message +buffer. + + Here is example code which uses RT-LIBER-GNUS-P to override the +signature in the default posting style with one special to +rt-liberation. Headers can be added and removed in a similar manner. + + (setq gnus-posting-styles + '((".*" + (name "Lemm E. Hackitt") + (address "Lemm@hack.it") + (signature-file "~/sig.txt") + ("X-Ethics" "Use GNU")) + (rt-liber-gnus-p + (signature-file "~/rt-liber-sig.txt")))) + + Once rt-liberation-gnus is loaded and customized the key-bindings in +the Viewer will be able to call into it, *Note Ticket Viewer::. + + +File: rt-liber.info, Node: Tracking Updates, Next: Batch Operations, Prev: Gnus Integration, Up: Top + +7 Tracking Updates +****************** + +The functions in 'rt-liberation-update.el' help keep up with updates to +the ticket database. To enable the feature, 'require' it after loading +rt-liberation: + + (require 'rt-liberation-update) + + Then set RT-LIBER-UPDATE-DEFAULT-QUEUE to be the name of the queue to +watch for updates. For example: + + (setq rt-liber-update-default-queue "complaints") + + -- Function: rt-liber-update &optional no-update + 'rt-liber-update' is an interactive function which runs a query + against the RT server asking for the tickets which have been + updated since the time 'rt-liber-update' was last run (each time it + runs, it leaves a time-stamp). If no time-stamp is found, for + instance when you run 'rt-liber-update' for the first time, today's + date is used. + + With the NO-UPDATE prefix, 'rt-liber-update' will not update the + time-stamp so that the next invocation will produce the same + result. + + +File: rt-liber.info, Node: Batch Operations, Next: Local Storage, Prev: Tracking Updates, Up: Top + +8 Batch Operations +****************** + +The extension 'rt-liberation-multi.el' implements performing batch +operations on groups of tickets. It works in two stages: First mark an +arbitrary number of tickets within the same buffer then call a batch +operation function on them. The batch operation functions work the same +way as function which work on single tickets only that they iterate +through all of the marked tickets. + + To enable batch operations first load 'rt-liberation-multi.el': + + (require 'rt-liberation-storage) + +'M' + Mark the ticket at point for future action. If the ticket at point + is already marked then unmark it. + + -- Function: rt-liber-multi-set-status-open + Set the status of all the marked tickets to "open". + + -- Function: rt-liber-multi-set-status-resolved + Set the status of all the marked tickets to "resolved. + + -- Function: rt-liber-multi-assign name + Assign all of the marked tickets to NAME. + + -- Function: rt-liber-multi-flag-as-spam-and-delete + Set the status of all the marked tickets to "is-spam" and delete. + + +File: rt-liber.info, Node: Local Storage, Next: Copying, Prev: Batch Operations, Up: Top + +9 Local Storage +*************** + +'rt-liberation-storage.el' implements associating arbitrary ancillary +data with tickets. The data is stored locally and is not sent to the RT +server. + + To enable local storage first load 'rt-liberation-storage.el': + + (require 'rt-liberation-storage) + + Then enable the display of ancillary data with: + + (setq rt-liber-anc-p t) + + The associated data is edited and displayed in the ticket browser +with the following command key: + +'A' + Associate text with the ticket at point. You will be prompted to + enter a string of text. + + Once text is associated with a ticket it will be displayed alongside +that ticket in the ticket browser. This particular feature lends itself +to creating private annotations about tickets. + + The implementation distributed with rt-liberation allows associating +text with tickets but is not limited to text. The same implementation +can be extended to associate any arbitrary data with any ticket. + + +File: rt-liber.info, Node: Copying, Next: The GNU FDL, Prev: Local Storage, Up: Top + +10 The GNU General Public License. +********************************** + + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> + + Everyone is permitted to copy and distribute verbatim copies of this + license document, but changing it is not allowed. + +Preamble +======== + +The GNU General Public License is a free, copyleft license for software +and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + + To protect your rights, we need to prevent others from denying you +these rights or asking you to surrender the rights. Therefore, you have +certain responsibilities if you distribute copies of the software, or if +you modify it: responsibilities to respect the freedom of others. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must pass on to the recipients the same +freedoms that you received. You must make sure that they, too, receive +or can get the source code. And you must show them these terms so they +know their rights. + + Developers that use the GNU GPL protect your rights with two steps: +(1) assert copyright on the software, and (2) offer you this License +giving you legal permission to copy, distribute and/or modify it. + + For the developers' and authors' protection, the GPL clearly explains +that there is no warranty for this free software. For both users' and +authors' sake, the GPL requires that modified versions be marked as +changed, so that their problems will not be attributed erroneously to +authors of previous versions. + + Some devices are designed to deny users access to install or run +modified versions of the software inside them, although the manufacturer +can do so. This is fundamentally incompatible with the aim of +protecting users' freedom to change the software. The systematic +pattern of such abuse occurs in the area of products for individuals to +use, which is precisely where it is most unacceptable. Therefore, we +have designed this version of the GPL to prohibit the practice for those +products. If such problems arise substantially in other domains, we +stand ready to extend this provision to those domains in future versions +of the GPL, as needed to protect the freedom of users. + + Finally, every program is threatened constantly by software patents. +States should not allow patents to restrict development and use of +software on general-purpose computers, but in those that do, we wish to +avoid the special danger that patents applied to a free program could +make it effectively proprietary. To prevent this, the GPL assures that +patents cannot be used to render the program non-free. + + The precise terms and conditions for copying, distribution and +modification follow. + +TERMS AND CONDITIONS +==================== + + 0. Definitions. + + "This License" refers to version 3 of the GNU General Public + License. + + "Copyright" also means copyright-like laws that apply to other + kinds of works, such as semiconductor masks. + + "The Program" refers to any copyrightable work licensed under this + License. Each licensee is addressed as "you". "Licensees" and + "recipients" may be individuals or organizations. + + To "modify" a work means to copy from or adapt all or part of the + work in a fashion requiring copyright permission, other than the + making of an exact copy. The resulting work is called a "modified + version" of the earlier work or a work "based on" the earlier work. + + A "covered work" means either the unmodified Program or a work + based on the Program. + + To "propagate" a work means to do anything with it that, without + permission, would make you directly or secondarily liable for + infringement under applicable copyright law, except executing it on + a computer or modifying a private copy. Propagation includes + copying, distribution (with or without modification), making + available to the public, and in some countries other activities as + well. + + To "convey" a work means any kind of propagation that enables other + parties to make or receive copies. Mere interaction with a user + through a computer network, with no transfer of a copy, is not + conveying. + + An interactive user interface displays "Appropriate Legal Notices" + to the extent that it includes a convenient and prominently visible + feature that (1) displays an appropriate copyright notice, and (2) + tells the user that there is no warranty for the work (except to + the extent that warranties are provided), that licensees may convey + the work under this License, and how to view a copy of this + License. If the interface presents a list of user commands or + options, such as a menu, a prominent item in the list meets this + criterion. + + 1. Source Code. + + The "source code" for a work means the preferred form of the work + for making modifications to it. "Object code" means any non-source + form of a work. + + A "Standard Interface" means an interface that either is an + official standard defined by a recognized standards body, or, in + the case of interfaces specified for a particular programming + language, one that is widely used among developers working in that + language. + + The "System Libraries" of an executable work include anything, + other than the work as a whole, that (a) is included in the normal + form of packaging a Major Component, but which is not part of that + Major Component, and (b) serves only to enable use of the work with + that Major Component, or to implement a Standard Interface for + which an implementation is available to the public in source code + form. A "Major Component", in this context, means a major + essential component (kernel, window system, and so on) of the + specific operating system (if any) on which the executable work + runs, or a compiler used to produce the work, or an object code + interpreter used to run it. + + The "Corresponding Source" for a work in object code form means all + the source code needed to generate, install, and (for an executable + work) run the object code and to modify the work, including scripts + to control those activities. However, it does not include the + work's System Libraries, or general-purpose tools or generally + available free programs which are used unmodified in performing + those activities but which are not part of the work. For example, + Corresponding Source includes interface definition files associated + with source files for the work, and the source code for shared + libraries and dynamically linked subprograms that the work is + specifically designed to require, such as by intimate data + communication or control flow between those subprograms and other + parts of the work. + + The Corresponding Source need not include anything that users can + regenerate automatically from other parts of the Corresponding + Source. + + The Corresponding Source for a work in source code form is that + same work. + + 2. Basic Permissions. + + All rights granted under this License are granted for the term of + copyright on the Program, and are irrevocable provided the stated + conditions are met. This License explicitly affirms your unlimited + permission to run the unmodified Program. The output from running + a covered work is covered by this License only if the output, given + its content, constitutes a covered work. This License acknowledges + your rights of fair use or other equivalent, as provided by + copyright law. + + You may make, run and propagate covered works that you do not + convey, without conditions so long as your license otherwise + remains in force. You may convey covered works to others for the + sole purpose of having them make modifications exclusively for you, + or provide you with facilities for running those works, provided + that you comply with the terms of this License in conveying all + material for which you do not control copyright. Those thus making + or running the covered works for you must do so exclusively on your + behalf, under your direction and control, on terms that prohibit + them from making any copies of your copyrighted material outside + their relationship with you. + + Conveying under any other circumstances is permitted solely under + the conditions stated below. Sublicensing is not allowed; section + 10 makes it unnecessary. + + 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + + No covered work shall be deemed part of an effective technological + measure under any applicable law fulfilling obligations under + article 11 of the WIPO copyright treaty adopted on 20 December + 1996, or similar laws prohibiting or restricting circumvention of + such measures. + + When you convey a covered work, you waive any legal power to forbid + circumvention of technological measures to the extent such + circumvention is effected by exercising rights under this License + with respect to the covered work, and you disclaim any intention to + limit operation or modification of the work as a means of + enforcing, against the work's users, your or third parties' legal + rights to forbid circumvention of technological measures. + + 4. Conveying Verbatim Copies. + + You may convey verbatim copies of the Program's source code as you + receive it, in any medium, provided that you conspicuously and + appropriately publish on each copy an appropriate copyright notice; + keep intact all notices stating that this License and any + non-permissive terms added in accord with section 7 apply to the + code; keep intact all notices of the absence of any warranty; and + give all recipients a copy of this License along with the Program. + + You may charge any price or no price for each copy that you convey, + and you may offer support or warranty protection for a fee. + + 5. Conveying Modified Source Versions. + + You may convey a work based on the Program, or the modifications to + produce it from the Program, in the form of source code under the + terms of section 4, provided that you also meet all of these + conditions: + + a. The work must carry prominent notices stating that you + modified it, and giving a relevant date. + + b. The work must carry prominent notices stating that it is + released under this License and any conditions added under + section 7. This requirement modifies the requirement in + section 4 to "keep intact all notices". + + c. You must license the entire work, as a whole, under this + License to anyone who comes into possession of a copy. This + License will therefore apply, along with any applicable + section 7 additional terms, to the whole of the work, and all + its parts, regardless of how they are packaged. This License + gives no permission to license the work in any other way, but + it does not invalidate such permission if you have separately + received it. + + d. If the work has interactive user interfaces, each must display + Appropriate Legal Notices; however, if the Program has + interactive interfaces that do not display Appropriate Legal + Notices, your work need not make them do so. + + A compilation of a covered work with other separate and independent + works, which are not by their nature extensions of the covered + work, and which are not combined with it such as to form a larger + program, in or on a volume of a storage or distribution medium, is + called an "aggregate" if the compilation and its resulting + copyright are not used to limit the access or legal rights of the + compilation's users beyond what the individual works permit. + Inclusion of a covered work in an aggregate does not cause this + License to apply to the other parts of the aggregate. + + 6. Conveying Non-Source Forms. + + You may convey a covered work in object code form under the terms + of sections 4 and 5, provided that you also convey the + machine-readable Corresponding Source under the terms of this + License, in one of these ways: + + a. Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by the + Corresponding Source fixed on a durable physical medium + customarily used for software interchange. + + b. Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by a + written offer, valid for at least three years and valid for as + long as you offer spare parts or customer support for that + product model, to give anyone who possesses the object code + either (1) a copy of the Corresponding Source for all the + software in the product that is covered by this License, on a + durable physical medium customarily used for software + interchange, for a price no more than your reasonable cost of + physically performing this conveying of source, or (2) access + to copy the Corresponding Source from a network server at no + charge. + + c. Convey individual copies of the object code with a copy of the + written offer to provide the Corresponding Source. This + alternative is allowed only occasionally and noncommercially, + and only if you received the object code with such an offer, + in accord with subsection 6b. + + d. Convey the object code by offering access from a designated + place (gratis or for a charge), and offer equivalent access to + the Corresponding Source in the same way through the same + place at no further charge. You need not require recipients + to copy the Corresponding Source along with the object code. + If the place to copy the object code is a network server, the + Corresponding Source may be on a different server (operated by + you or a third party) that supports equivalent copying + facilities, provided you maintain clear directions next to the + object code saying where to find the Corresponding Source. + Regardless of what server hosts the Corresponding Source, you + remain obligated to ensure that it is available for as long as + needed to satisfy these requirements. + + e. Convey the object code using peer-to-peer transmission, + provided you inform other peers where the object code and + Corresponding Source of the work are being offered to the + general public at no charge under subsection 6d. + + A separable portion of the object code, whose source code is + excluded from the Corresponding Source as a System Library, need + not be included in conveying the object code work. + + A "User Product" is either (1) a "consumer product", which means + any tangible personal property which is normally used for personal, + family, or household purposes, or (2) anything designed or sold for + incorporation into a dwelling. In determining whether a product is + a consumer product, doubtful cases shall be resolved in favor of + coverage. For a particular product received by a particular user, + "normally used" refers to a typical or common use of that class of + product, regardless of the status of the particular user or of the + way in which the particular user actually uses, or expects or is + expected to use, the product. A product is a consumer product + regardless of whether the product has substantial commercial, + industrial or non-consumer uses, unless such uses represent the + only significant mode of use of the product. + + "Installation Information" for a User Product means any methods, + procedures, authorization keys, or other information required to + install and execute modified versions of a covered work in that + User Product from a modified version of its Corresponding Source. + The information must suffice to ensure that the continued + functioning of the modified object code is in no case prevented or + interfered with solely because modification has been made. + + If you convey an object code work under this section in, or with, + or specifically for use in, a User Product, and the conveying + occurs as part of a transaction in which the right of possession + and use of the User Product is transferred to the recipient in + perpetuity or for a fixed term (regardless of how the transaction + is characterized), the Corresponding Source conveyed under this + section must be accompanied by the Installation Information. But + this requirement does not apply if neither you nor any third party + retains the ability to install modified object code on the User + Product (for example, the work has been installed in ROM). + + The requirement to provide Installation Information does not + include a requirement to continue to provide support service, + warranty, or updates for a work that has been modified or installed + by the recipient, or for the User Product in which it has been + modified or installed. Access to a network may be denied when the + modification itself materially and adversely affects the operation + of the network or violates the rules and protocols for + communication across the network. + + Corresponding Source conveyed, and Installation Information + provided, in accord with this section must be in a format that is + publicly documented (and with an implementation available to the + public in source code form), and must require no special password + or key for unpacking, reading or copying. + + 7. Additional Terms. + + "Additional permissions" are terms that supplement the terms of + this License by making exceptions from one or more of its + conditions. Additional permissions that are applicable to the + entire Program shall be treated as though they were included in + this License, to the extent that they are valid under applicable + law. If additional permissions apply only to part of the Program, + that part may be used separately under those permissions, but the + entire Program remains governed by this License without regard to + the additional permissions. + + When you convey a copy of a covered work, you may at your option + remove any additional permissions from that copy, or from any part + of it. (Additional permissions may be written to require their own + removal in certain cases when you modify the work.) You may place + additional permissions on material, added by you to a covered work, + for which you have or can give appropriate copyright permission. + + Notwithstanding any other provision of this License, for material + you add to a covered work, you may (if authorized by the copyright + holders of that material) supplement the terms of this License with + terms: + + a. Disclaiming warranty or limiting liability differently from + the terms of sections 15 and 16 of this License; or + + b. Requiring preservation of specified reasonable legal notices + or author attributions in that material or in the Appropriate + Legal Notices displayed by works containing it; or + + c. Prohibiting misrepresentation of the origin of that material, + or requiring that modified versions of such material be marked + in reasonable ways as different from the original version; or + + d. Limiting the use for publicity purposes of names of licensors + or authors of the material; or + + e. Declining to grant rights under trademark law for use of some + trade names, trademarks, or service marks; or + + f. Requiring indemnification of licensors and authors of that + material by anyone who conveys the material (or modified + versions of it) with contractual assumptions of liability to + the recipient, for any liability that these contractual + assumptions directly impose on those licensors and authors. + + All other non-permissive additional terms are considered "further + restrictions" within the meaning of section 10. If the Program as + you received it, or any part of it, contains a notice stating that + it is governed by this License along with a term that is a further + restriction, you may remove that term. If a license document + contains a further restriction but permits relicensing or conveying + under this License, you may add to a covered work material governed + by the terms of that license document, provided that the further + restriction does not survive such relicensing or conveying. + + If you add terms to a covered work in accord with this section, you + must place, in the relevant source files, a statement of the + additional terms that apply to those files, or a notice indicating + where to find the applicable terms. + + Additional terms, permissive or non-permissive, may be stated in + the form of a separately written license, or stated as exceptions; + the above requirements apply either way. + + 8. Termination. + + You may not propagate or modify a covered work except as expressly + provided under this License. Any attempt otherwise to propagate or + modify it is void, and will automatically terminate your rights + under this License (including any patent licenses granted under the + third paragraph of section 11). + + However, if you cease all violation of this License, then your + license from a particular copyright holder is reinstated (a) + provisionally, unless and until the copyright holder explicitly and + finally terminates your license, and (b) permanently, if the + copyright holder fails to notify you of the violation by some + reasonable means prior to 60 days after the cessation. + + Moreover, your license from a particular copyright holder is + reinstated permanently if the copyright holder notifies you of the + violation by some reasonable means, this is the first time you have + received notice of violation of this License (for any work) from + that copyright holder, and you cure the violation prior to 30 days + after your receipt of the notice. + + Termination of your rights under this section does not terminate + the licenses of parties who have received copies or rights from you + under this License. If your rights have been terminated and not + permanently reinstated, you do not qualify to receive new licenses + for the same material under section 10. + + 9. Acceptance Not Required for Having Copies. + + You are not required to accept this License in order to receive or + run a copy of the Program. Ancillary propagation of a covered work + occurring solely as a consequence of using peer-to-peer + transmission to receive a copy likewise does not require + acceptance. However, nothing other than this License grants you + permission to propagate or modify any covered work. These actions + infringe copyright if you do not accept this License. Therefore, + by modifying or propagating a covered work, you indicate your + acceptance of this License to do so. + + 10. Automatic Licensing of Downstream Recipients. + + Each time you convey a covered work, the recipient automatically + receives a license from the original licensors, to run, modify and + propagate that work, subject to this License. You are not + responsible for enforcing compliance by third parties with this + License. + + An "entity transaction" is a transaction transferring control of an + organization, or substantially all assets of one, or subdividing an + organization, or merging organizations. If propagation of a + covered work results from an entity transaction, each party to that + transaction who receives a copy of the work also receives whatever + licenses to the work the party's predecessor in interest had or + could give under the previous paragraph, plus a right to possession + of the Corresponding Source of the work from the predecessor in + interest, if the predecessor has it or can get it with reasonable + efforts. + + You may not impose any further restrictions on the exercise of the + rights granted or affirmed under this License. For example, you + may not impose a license fee, royalty, or other charge for exercise + of rights granted under this License, and you may not initiate + litigation (including a cross-claim or counterclaim in a lawsuit) + alleging that any patent claim is infringed by making, using, + selling, offering for sale, or importing the Program or any portion + of it. + + 11. Patents. + + A "contributor" is a copyright holder who authorizes use under this + License of the Program or a work on which the Program is based. + The work thus licensed is called the contributor's "contributor + version". + + A contributor's "essential patent claims" are all patent claims + owned or controlled by the contributor, whether already acquired or + hereafter acquired, that would be infringed by some manner, + permitted by this License, of making, using, or selling its + contributor version, but do not include claims that would be + infringed only as a consequence of further modification of the + contributor version. For purposes of this definition, "control" + includes the right to grant patent sublicenses in a manner + consistent with the requirements of this License. + + Each contributor grants you a non-exclusive, worldwide, + royalty-free patent license under the contributor's essential + patent claims, to make, use, sell, offer for sale, import and + otherwise run, modify and propagate the contents of its contributor + version. + + In the following three paragraphs, a "patent license" is any + express agreement or commitment, however denominated, not to + enforce a patent (such as an express permission to practice a + patent or covenant not to sue for patent infringement). To "grant" + such a patent license to a party means to make such an agreement or + commitment not to enforce a patent against the party. + + If you convey a covered work, knowingly relying on a patent + license, and the Corresponding Source of the work is not available + for anyone to copy, free of charge and under the terms of this + License, through a publicly available network server or other + readily accessible means, then you must either (1) cause the + Corresponding Source to be so available, or (2) arrange to deprive + yourself of the benefit of the patent license for this particular + work, or (3) arrange, in a manner consistent with the requirements + of this License, to extend the patent license to downstream + recipients. "Knowingly relying" means you have actual knowledge + that, but for the patent license, your conveying the covered work + in a country, or your recipient's use of the covered work in a + country, would infringe one or more identifiable patents in that + country that you have reason to believe are valid. + + If, pursuant to or in connection with a single transaction or + arrangement, you convey, or propagate by procuring conveyance of, a + covered work, and grant a patent license to some of the parties + receiving the covered work authorizing them to use, propagate, + modify or convey a specific copy of the covered work, then the + patent license you grant is automatically extended to all + recipients of the covered work and works based on it. + + A patent license is "discriminatory" if it does not include within + the scope of its coverage, prohibits the exercise of, or is + conditioned on the non-exercise of one or more of the rights that + are specifically granted under this License. You may not convey a + covered work if you are a party to an arrangement with a third + party that is in the business of distributing software, under which + you make payment to the third party based on the extent of your + activity of conveying the work, and under which the third party + grants, to any of the parties who would receive the covered work + from you, a discriminatory patent license (a) in connection with + copies of the covered work conveyed by you (or copies made from + those copies), or (b) primarily for and in connection with specific + products or compilations that contain the covered work, unless you + entered into that arrangement, or that patent license was granted, + prior to 28 March 2007. + + Nothing in this License shall be construed as excluding or limiting + any implied license or other defenses to infringement that may + otherwise be available to you under applicable patent law. + + 12. No Surrender of Others' Freedom. + + If conditions are imposed on you (whether by court order, agreement + or otherwise) that contradict the conditions of this License, they + do not excuse you from the conditions of this License. If you + cannot convey a covered work so as to satisfy simultaneously your + obligations under this License and any other pertinent obligations, + then as a consequence you may not convey it at all. For example, + if you agree to terms that obligate you to collect a royalty for + further conveying from those to whom you convey the Program, the + only way you could satisfy both those terms and this License would + be to refrain entirely from conveying the Program. + + 13. Use with the GNU Affero General Public License. + + Notwithstanding any other provision of this License, you have + permission to link or combine any covered work with a work licensed + under version 3 of the GNU Affero General Public License into a + single combined work, and to convey the resulting work. The terms + of this License will continue to apply to the part which is the + covered work, but the special requirements of the GNU Affero + General Public License, section 13, concerning interaction through + a network will apply to the combination as such. + + 14. Revised Versions of this License. + + The Free Software Foundation may publish revised and/or new + versions of the GNU General Public License from time to time. Such + new versions will be similar in spirit to the present version, but + may differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the + Program specifies that a certain numbered version of the GNU + General Public License "or any later version" applies to it, you + have the option of following the terms and conditions either of + that numbered version or of any later version published by the Free + Software Foundation. If the Program does not specify a version + number of the GNU General Public License, you may choose any + version ever published by the Free Software Foundation. + + If the Program specifies that a proxy can decide which future + versions of the GNU General Public License can be used, that + proxy's public statement of acceptance of a version permanently + authorizes you to choose that version for the Program. + + Later license versions may give you additional or different + permissions. However, no additional obligations are imposed on any + author or copyright holder as a result of your choosing to follow a + later version. + + 15. Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY + APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE + COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" + WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE + RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. + SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL + NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN + WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES + AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR + DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR + CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE + THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA + BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD + PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER + PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF + THE POSSIBILITY OF SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided + above cannot be given local legal effect according to their terms, + reviewing courts shall apply local law that most closely + approximates an absolute waiver of all civil liability in + connection with the Program, unless a warranty or assumption of + liability accompanies a copy of the Program in return for a fee. + +END OF TERMS AND CONDITIONS +=========================== + +How to Apply These Terms to Your New Programs +============================================= + +If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these +terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least the +"copyright" line and a pointer to where the full notice is found. + + ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES. + Copyright (C) YEAR NAME OF AUTHOR + + This program 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 3 of the License, or (at + your option) any later version. + + This program 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 this program. If not, see <https://www.gnu.org/licenses/>. + + Also add information on how to contact you by electronic and paper +mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + PROGRAM Copyright (C) YEAR NAME OF AUTHOR + This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type 'show c' for details. + + The hypothetical commands 'show w' and 'show c' should show the +appropriate parts of the General Public License. Of course, your +program's commands might be different; for a GUI interface, you would +use an "about box". + + You should also get your employer (if you work as a programmer) or +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. For more information on this, and how to apply and follow +the GNU GPL, see <https://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your +program into proprietary programs. If your program is a subroutine +library, you may consider it more useful to permit linking proprietary +applications with the library. If this is what you want to do, use the +GNU Lesser General Public License instead of this License. But first, +please read <https://www.gnu.org/licenses/why-not-lgpl.html>. + + +File: rt-liber.info, Node: The GNU FDL, Next: Concept Index, Prev: Copying, Up: Top + +11 GNU Free Documentation License +********************************* + + Version 1.2, November 2002 + + Copyright (C) 2000,2001,2002 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA + + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + 0. PREAMBLE + + The purpose of this License is to make a manual, textbook, or other + functional and useful document "free" in the sense of freedom: to + assure everyone the effective freedom to copy and redistribute it, + with or without modifying it, either commercially or + noncommercially. Secondarily, this License preserves for the + author and publisher a way to get credit for their work, while not + being considered responsible for modifications made by others. + + This License is a kind of "copyleft", which means that derivative + works of the document must themselves be free in the same sense. + It complements the GNU General Public License, which is a copyleft + license designed for free software. + + We have designed this License in order to use it for manuals for + free software, because free software needs free documentation: a + free program should come with manuals providing the same freedoms + that the software does. But this License is not limited to + software manuals; it can be used for any textual work, regardless + of subject matter or whether it is published as a printed book. We + recommend this License principally for works whose purpose is + instruction or reference. + + 1. APPLICABILITY AND DEFINITIONS + + This License applies to any manual or other work, in any medium, + that contains a notice placed by the copyright holder saying it can + be distributed under the terms of this License. Such a notice + grants a world-wide, royalty-free license, unlimited in duration, + to use that work under the conditions stated herein. The + "Document", below, refers to any such manual or work. Any member + of the public is a licensee, and is addressed as "you". You accept + the license if you copy, modify or distribute the work in a way + requiring permission under copyright law. + + A "Modified Version" of the Document means any work containing the + Document or a portion of it, either copied verbatim, or with + modifications and/or translated into another language. + + A "Secondary Section" is a named appendix or a front-matter section + of the Document that deals exclusively with the relationship of the + publishers or authors of the Document to the Document's overall + subject (or to related matters) and contains nothing that could + fall directly within that overall subject. (Thus, if the Document + is in part a textbook of mathematics, a Secondary Section may not + explain any mathematics.) The relationship could be a matter of + historical connection with the subject or with related matters, or + of legal, commercial, philosophical, ethical or political position + regarding them. + + The "Invariant Sections" are certain Secondary Sections whose + titles are designated, as being those of Invariant Sections, in the + notice that says that the Document is released under this License. + If a section does not fit the above definition of Secondary then it + is not allowed to be designated as Invariant. The Document may + contain zero Invariant Sections. If the Document does not identify + any Invariant Sections then there are none. + + The "Cover Texts" are certain short passages of text that are + listed, as Front-Cover Texts or Back-Cover Texts, in the notice + that says that the Document is released under this License. A + Front-Cover Text may be at most 5 words, and a Back-Cover Text may + be at most 25 words. + + A "Transparent" copy of the Document means a machine-readable copy, + represented in a format whose specification is available to the + general public, that is suitable for revising the document + straightforwardly with generic text editors or (for images composed + of pixels) generic paint programs or (for drawings) some widely + available drawing editor, and that is suitable for input to text + formatters or for automatic translation to a variety of formats + suitable for input to text formatters. A copy made in an otherwise + Transparent file format whose markup, or absence of markup, has + been arranged to thwart or discourage subsequent modification by + readers is not Transparent. An image format is not Transparent if + used for any substantial amount of text. A copy that is not + "Transparent" is called "Opaque". + + Examples of suitable formats for Transparent copies include plain + ASCII without markup, Texinfo input format, LaTeX input format, + SGML or XML using a publicly available DTD, and standard-conforming + simple HTML, PostScript or PDF designed for human modification. + Examples of transparent image formats include PNG, XCF and JPG. + Opaque formats include proprietary formats that can be read and + edited only by proprietary word processors, SGML or XML for which + the DTD and/or processing tools are not generally available, and + the machine-generated HTML, PostScript or PDF produced by some word + processors for output purposes only. + + The "Title Page" means, for a printed book, the title page itself, + plus such following pages as are needed to hold, legibly, the + material this License requires to appear in the title page. For + works in formats which do not have any title page as such, "Title + Page" means the text near the most prominent appearance of the + work's title, preceding the beginning of the body of the text. + + A section "Entitled XYZ" means a named subunit of the Document + whose title either is precisely XYZ or contains XYZ in parentheses + following text that translates XYZ in another language. (Here XYZ + stands for a specific section name mentioned below, such as + "Acknowledgements", "Dedications", "Endorsements", or "History".) + To "Preserve the Title" of such a section when you modify the + Document means that it remains a section "Entitled XYZ" according + to this definition. + + The Document may include Warranty Disclaimers next to the notice + which states that this License applies to the Document. These + Warranty Disclaimers are considered to be included by reference in + this License, but only as regards disclaiming warranties: any other + implication that these Warranty Disclaimers may have is void and + has no effect on the meaning of this License. + + 2. VERBATIM COPYING + + You may copy and distribute the Document in any medium, either + commercially or noncommercially, provided that this License, the + copyright notices, and the license notice saying this License + applies to the Document are reproduced in all copies, and that you + add no other conditions whatsoever to those of this License. You + may not use technical measures to obstruct or control the reading + or further copying of the copies you make or distribute. However, + you may accept compensation in exchange for copies. If you + distribute a large enough number of copies you must also follow the + conditions in section 3. + + You may also lend copies, under the same conditions stated above, + and you may publicly display copies. + + 3. COPYING IN QUANTITY + + If you publish printed copies (or copies in media that commonly + have printed covers) of the Document, numbering more than 100, and + the Document's license notice requires Cover Texts, you must + enclose the copies in covers that carry, clearly and legibly, all + these Cover Texts: Front-Cover Texts on the front cover, and + Back-Cover Texts on the back cover. Both covers must also clearly + and legibly identify you as the publisher of these copies. The + front cover must present the full title with all words of the title + equally prominent and visible. You may add other material on the + covers in addition. Copying with changes limited to the covers, as + long as they preserve the title of the Document and satisfy these + conditions, can be treated as verbatim copying in other respects. + + If the required texts for either cover are too voluminous to fit + legibly, you should put the first ones listed (as many as fit + reasonably) on the actual cover, and continue the rest onto + adjacent pages. + + If you publish or distribute Opaque copies of the Document + numbering more than 100, you must either include a machine-readable + Transparent copy along with each Opaque copy, or state in or with + each Opaque copy a computer-network location from which the general + network-using public has access to download using public-standard + network protocols a complete Transparent copy of the Document, free + of added material. If you use the latter option, you must take + reasonably prudent steps, when you begin distribution of Opaque + copies in quantity, to ensure that this Transparent copy will + remain thus accessible at the stated location until at least one + year after the last time you distribute an Opaque copy (directly or + through your agents or retailers) of that edition to the public. + + It is requested, but not required, that you contact the authors of + the Document well before redistributing any large number of copies, + to give them a chance to provide you with an updated version of the + Document. + + 4. MODIFICATIONS + + You may copy and distribute a Modified Version of the Document + under the conditions of sections 2 and 3 above, provided that you + release the Modified Version under precisely this License, with the + Modified Version filling the role of the Document, thus licensing + distribution and modification of the Modified Version to whoever + possesses a copy of it. In addition, you must do these things in + the Modified Version: + + A. Use in the Title Page (and on the covers, if any) a title + distinct from that of the Document, and from those of previous + versions (which should, if there were any, be listed in the + History section of the Document). You may use the same title + as a previous version if the original publisher of that + version gives permission. + + B. List on the Title Page, as authors, one or more persons or + entities responsible for authorship of the modifications in + the Modified Version, together with at least five of the + principal authors of the Document (all of its principal + authors, if it has fewer than five), unless they release you + from this requirement. + + C. State on the Title page the name of the publisher of the + Modified Version, as the publisher. + + D. Preserve all the copyright notices of the Document. + + E. Add an appropriate copyright notice for your modifications + adjacent to the other copyright notices. + + F. Include, immediately after the copyright notices, a license + notice giving the public permission to use the Modified + Version under the terms of this License, in the form shown in + the Addendum below. + + G. Preserve in that license notice the full lists of Invariant + Sections and required Cover Texts given in the Document's + license notice. + + H. Include an unaltered copy of this License. + + I. Preserve the section Entitled "History", Preserve its Title, + and add to it an item stating at least the title, year, new + authors, and publisher of the Modified Version as given on the + Title Page. If there is no section Entitled "History" in the + Document, create one stating the title, year, authors, and + publisher of the Document as given on its Title Page, then add + an item describing the Modified Version as stated in the + previous sentence. + + J. Preserve the network location, if any, given in the Document + for public access to a Transparent copy of the Document, and + likewise the network locations given in the Document for + previous versions it was based on. These may be placed in the + "History" section. You may omit a network location for a work + that was published at least four years before the Document + itself, or if the original publisher of the version it refers + to gives permission. + + K. For any section Entitled "Acknowledgements" or "Dedications", + Preserve the Title of the section, and preserve in the section + all the substance and tone of each of the contributor + acknowledgements and/or dedications given therein. + + L. Preserve all the Invariant Sections of the Document, unaltered + in their text and in their titles. Section numbers or the + equivalent are not considered part of the section titles. + + M. Delete any section Entitled "Endorsements". Such a section + may not be included in the Modified Version. + + N. Do not retitle any existing section to be Entitled + "Endorsements" or to conflict in title with any Invariant + Section. + + O. Preserve any Warranty Disclaimers. + + If the Modified Version includes new front-matter sections or + appendices that qualify as Secondary Sections and contain no + material copied from the Document, you may at your option designate + some or all of these sections as invariant. To do this, add their + titles to the list of Invariant Sections in the Modified Version's + license notice. These titles must be distinct from any other + section titles. + + You may add a section Entitled "Endorsements", provided it contains + nothing but endorsements of your Modified Version by various + parties--for example, statements of peer review or that the text + has been approved by an organization as the authoritative + definition of a standard. + + You may add a passage of up to five words as a Front-Cover Text, + and a passage of up to 25 words as a Back-Cover Text, to the end of + the list of Cover Texts in the Modified Version. Only one passage + of Front-Cover Text and one of Back-Cover Text may be added by (or + through arrangements made by) any one entity. If the Document + already includes a cover text for the same cover, previously added + by you or by arrangement made by the same entity you are acting on + behalf of, you may not add another; but you may replace the old + one, on explicit permission from the previous publisher that added + the old one. + + The author(s) and publisher(s) of the Document do not by this + License give permission to use their names for publicity for or to + assert or imply endorsement of any Modified Version. + + 5. COMBINING DOCUMENTS + + You may combine the Document with other documents released under + this License, under the terms defined in section 4 above for + modified versions, provided that you include in the combination all + of the Invariant Sections of all of the original documents, + unmodified, and list them all as Invariant Sections of your + combined work in its license notice, and that you preserve all + their Warranty Disclaimers. + + The combined work need only contain one copy of this License, and + multiple identical Invariant Sections may be replaced with a single + copy. If there are multiple Invariant Sections with the same name + but different contents, make the title of each such section unique + by adding at the end of it, in parentheses, the name of the + original author or publisher of that section if known, or else a + unique number. Make the same adjustment to the section titles in + the list of Invariant Sections in the license notice of the + combined work. + + In the combination, you must combine any sections Entitled + "History" in the various original documents, forming one section + Entitled "History"; likewise combine any sections Entitled + "Acknowledgements", and any sections Entitled "Dedications". You + must delete all sections Entitled "Endorsements." + + 6. COLLECTIONS OF DOCUMENTS + + You may make a collection consisting of the Document and other + documents released under this License, and replace the individual + copies of this License in the various documents with a single copy + that is included in the collection, provided that you follow the + rules of this License for verbatim copying of each of the documents + in all other respects. + + You may extract a single document from such a collection, and + distribute it individually under this License, provided you insert + a copy of this License into the extracted document, and follow this + License in all other respects regarding verbatim copying of that + document. + + 7. AGGREGATION WITH INDEPENDENT WORKS + + A compilation of the Document or its derivatives with other + separate and independent documents or works, in or on a volume of a + storage or distribution medium, is called an "aggregate" if the + copyright resulting from the compilation is not used to limit the + legal rights of the compilation's users beyond what the individual + works permit. When the Document is included in an aggregate, this + License does not apply to the other works in the aggregate which + are not themselves derivative works of the Document. + + If the Cover Text requirement of section 3 is applicable to these + copies of the Document, then if the Document is less than one half + of the entire aggregate, the Document's Cover Texts may be placed + on covers that bracket the Document within the aggregate, or the + electronic equivalent of covers if the Document is in electronic + form. Otherwise they must appear on printed covers that bracket + the whole aggregate. + + 8. TRANSLATION + + Translation is considered a kind of modification, so you may + distribute translations of the Document under the terms of section + 4. Replacing Invariant Sections with translations requires special + permission from their copyright holders, but you may include + translations of some or all Invariant Sections in addition to the + original versions of these Invariant Sections. You may include a + translation of this License, and all the license notices in the + Document, and any Warranty Disclaimers, provided that you also + include the original English version of this License and the + original versions of those notices and disclaimers. In case of a + disagreement between the translation and the original version of + this License or a notice or disclaimer, the original version will + prevail. + + If a section in the Document is Entitled "Acknowledgements", + "Dedications", or "History", the requirement (section 4) to + Preserve its Title (section 1) will typically require changing the + actual title. + + 9. TERMINATION + + You may not copy, modify, sublicense, or distribute the Document + except as expressly provided for under this License. Any other + attempt to copy, modify, sublicense or distribute the Document is + void, and will automatically terminate your rights under this + License. However, parties who have received copies, or rights, + from you under this License will not have their licenses terminated + so long as such parties remain in full compliance. + + 10. FUTURE REVISIONS OF THIS LICENSE + + The Free Software Foundation may publish new, revised versions of + the GNU Free Documentation License from time to time. Such new + versions will be similar in spirit to the present version, but may + differ in detail to address new problems or concerns. See + <http://www.gnu.org/copyleft/>. + + Each version of the License is given a distinguishing version + number. If the Document specifies that a particular numbered + version of this License "or any later version" applies to it, you + have the option of following the terms and conditions either of + that specified version or of any later version that has been + published (not as a draft) by the Free Software Foundation. If the + Document does not specify a version number of this License, you may + choose any version ever published (not as a draft) by the Free + Software Foundation. + +11.1 ADDENDUM: How to use this License for your documents +========================================================= + +To use this License in a document you have written, include a copy of +the License in the document and put the following copyright and license +notices just after the title page: + + Copyright (C) YEAR YOUR NAME. + Permission is granted to copy, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.2 + or any later version published by the Free Software Foundation; + with no Invariant Sections, no Front-Cover Texts, and no Back-Cover + Texts. A copy of the license is included in the section entitled ``GNU + Free Documentation License''. + + If you have Invariant Sections, Front-Cover Texts and Back-Cover +Texts, replace the "with...Texts." line with this: + + with the Invariant Sections being LIST THEIR TITLES, with + the Front-Cover Texts being LIST, and with the Back-Cover Texts + being LIST. + + If you have Invariant Sections without Cover Texts, or some other +combination of the three, merge those two alternatives to suit the +situation. + + If your document contains nontrivial examples of program code, we +recommend releasing these examples in parallel under your choice of free +software license, such as the GNU General Public License, to permit +their use in free software. + + +File: rt-liber.info, Node: Concept Index, Next: Function Index, Prev: The GNU FDL, Up: Top + +Concept Index +************* + + +* Menu: + +* Batch Operations: Batch Operations. (line 6) +* FDL, GNU Free Documentation License: The GNU FDL. (line 6) +* Gnus Integration: Gnus Integration. (line 6) +* installation: Installation. (line 6) +* introduction: Introduction. (line 6) +* Local Storage: Local Storage. (line 6) +* queries: Queries. (line 6) +* query compiler: Query Compiler. (line 6) +* query language: Query Language. (line 6) +* ticket browser: Ticket Browser. (line 6) +* ticket browser display function: Ticket Browser Display. + (line 6) +* ticket browser filtering filter: Ticket Browser Filtering. + (line 6) +* ticket browser multiple buffer: Multiple Ticket Browsers. + (line 6) +* ticket browser sorting: Ticket Browser Sorting. + (line 6) +* ticket viewer: Ticket Viewer. (line 6) +* Tracking Updates: Tracking Updates. (line 6) + + +File: rt-liber.info, Node: Function Index, Next: Variable Index, Prev: Concept Index, Up: Top + +Function Index +************** + + +* Menu: + +* revert-buffer: Ticket Browser. (line 48) +* revert-buffer <1>: Ticket Viewer. (line 66) +* rt-liber-browse-query: Ticket Browser. (line 12) +* rt-liber-browser-ancillary-text: Local Storage. (line 22) +* rt-liber-browser-assign: Ticket Browser. (line 62) +* rt-liber-browser-mark-as-spam: Ticket Browser. (line 55) +* rt-liber-browser-mode-quit: Ticket Browser. (line 36) +* rt-liber-browser-move: Ticket Browser. (line 80) +* rt-liber-browser-open: Ticket Browser. (line 68) +* rt-liber-browser-prioritize: Ticket Browser. (line 83) +* rt-liber-browser-refresh-and-return: Ticket Browser. (line 51) +* rt-liber-browser-resolve: Ticket Browser. (line 65) +* rt-liber-browser-take-ticket-at-point: Ticket Browser. (line 71) +* rt-liber-display-ticket-at-point: Ticket Browser. (line 45) +* rt-liber-jump-to-latest-correspondence: Ticket Viewer. (line 31) +* rt-liber-lex-lessthan-p: Ticket Browser Sorting. + (line 15) +* rt-liber-mark-ticket-at-point: Batch Operations. (line 18) +* rt-liber-multi-assign: Batch Operations. (line 27) +* rt-liber-multi-delete-spam: Ticket Browser. (line 58) +* rt-liber-multi-flag-as-spam-and-delete: Batch Operations. (line 30) +* rt-liber-multi-set-status-open: Batch Operations. (line 21) +* rt-liber-multi-set-status-resolved: Batch Operations. (line 24) +* rt-liber-next-section-in-viewer: Ticket Viewer. (line 28) +* rt-liber-next-ticket-in-browser: Ticket Browser. (line 39) +* rt-liber-previous-section-in-viewer: Ticket Viewer. (line 34) +* rt-liber-previous-ticket-in-browser: Ticket Browser. (line 42) +* rt-liber-time-lessthan-p: Ticket Browser Sorting. + (line 30) +* rt-liber-update: Tracking Updates. (line 17) +* rt-liber-viewer-answer: Ticket Viewer. (line 40) +* rt-liber-viewer-answer-provisionally: Ticket Viewer. (line 48) +* rt-liber-viewer-answer-provisionally-this: Ticket Viewer. (line 51) +* rt-liber-viewer-answer-this: Ticket Viewer. (line 43) +* rt-liber-viewer-answer-verbatim-this: Ticket Viewer. (line 56) +* rt-liber-viewer-comment: Ticket Viewer. (line 60) +* rt-liber-viewer-comment-this: Ticket Viewer. (line 63) +* rt-liber-viewer-mode-quit: Ticket Viewer. (line 25) +* rt-liber-viewer-show-ticket-browser: Ticket Viewer. (line 75) +* rt-liber-viewer-visit-in-browser: Ticket Viewer. (line 37) +* scroll-down: Ticket Browser. (line 77) +* scroll-down <1>: Ticket Viewer. (line 72) +* scroll-up: Ticket Browser. (line 74) +* scroll-up <1>: Ticket Viewer. (line 69) + + +File: rt-liber.info, Node: Variable Index, Next: Keybinding Index, Prev: Function Index, Up: Top + +Variable Index +************** + + +* Menu: + +* rt-liber-gnus-address: Gnus Integration. (line 20) +* rt-liber-gnus-comment-address: Gnus Integration. (line 24) +* rt-liber-gnus-subject-name: Gnus Integration. (line 28) + + +File: rt-liber.info, Node: Keybinding Index, Prev: Variable Index, Up: Top + +Keybinding Index +**************** + + +* Menu: + +* a (ticket browser): Ticket Browser. (line 62) +* A (ticket browser): Local Storage. (line 22) +* c (ticket viewer): Ticket Viewer. (line 60) +* C (ticket viewer): Ticket Viewer. (line 63) +* DEL (ticket browser): Ticket Browser. (line 77) +* DEL (ticket viewer): Ticket Viewer. (line 72) +* F (ticket viewer): Ticket Viewer. (line 56) +* g (ticket browser): Ticket Browser. (line 48) +* G (ticket browser): Ticket Browser. (line 51) +* g (ticket viewer): Ticket Viewer. (line 66) +* h (ticket viewer): Ticket Viewer. (line 75) +* m (ticket browser): Ticket Browser. (line 80) +* M (ticket browser): Batch Operations. (line 18) +* m (ticket viewer): Ticket Viewer. (line 40) +* M (ticket viewer): Ticket Viewer. (line 43) +* n (ticket browser): Ticket Browser. (line 39) +* n (ticket viewer): Ticket Viewer. (line 28) +* N (ticket viewer): Ticket Viewer. (line 31) +* o (ticket browser): Ticket Browser. (line 68) +* p (ticket browser): Ticket Browser. (line 42) +* P (ticket browser): Ticket Browser. (line 83) +* p (ticket viewer): Ticket Viewer. (line 34) +* q (ticket browser): Ticket Browser. (line 36) +* q (ticket viewer): Ticket Viewer. (line 25) +* r (ticket browser): Ticket Browser. (line 65) +* RET (ticket browser): Ticket Browser. (line 45) +* s (ticket browser): Ticket Browser. (line 55) +* S (ticket browser): Ticket Browser. (line 58) +* SPC (ticket browser): Ticket Browser. (line 74) +* SPC (ticket viewer): Ticket Viewer. (line 69) +* t (ticket browser): Ticket Browser. (line 71) +* t (ticket viewer): Ticket Viewer. (line 48) +* t (ticket viewer) <1>: Ticket Viewer. (line 51) +* V (ticket viewer): Ticket Viewer. (line 37) + + + +Tag Table: +Node: Top680 +Node: Introduction2956 +Node: Installation3563 +Node: Queries4542 +Node: Query Compiler5104 +Node: Query Language5745 +Node: Ticket Browser8184 +Node: Ticket Browser Display10656 +Node: Ticket Browser Sorting12647 +Node: Ticket Browser Filtering14597 +Node: Multiple Ticket Browsers16140 +Node: Ticket Viewer17309 +Node: Gnus Integration19481 +Node: Tracking Updates21769 +Node: Batch Operations22846 +Node: Local Storage24026 +Node: Copying25104 +Node: The GNU FDL62653 +Node: Concept Index85045 +Node: Function Index86626 +Node: Variable Index89976 +Node: Keybinding Index90352 + +End Tag Table |