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(MS-DOS File Names): Remove section about backslashes and case-insensitivity
in file names (moved to the main manual). (MS-DOS Printing): Move most of the text to the main manual.
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Eli Zaretskii
parent
270c669252
commit
7dfdf46520
1 changed files with 8 additions and 138 deletions
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@ -3316,7 +3316,7 @@ Windows).
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* Mouse: MS-DOS Mouse. Mouse conventions on MS-DOS.
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* Display: MS-DOS Display. Fonts, frames and display size on MS-DOS.
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* Files: MS-DOS File Names. File name conventions on MS-DOS.
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* Printing: MS-DOS Printing. How to specify the printer on MS-DOS.
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* Printing: MS-DOS Printing. Printing specifics on MS-DOS.
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* I18N: MS-DOS and MULE. Support for internationalization on MS-DOS.
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* Processes: MS-DOS Processes. Running subprocesses on MS-DOS.
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@end menu
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@ -3534,11 +3534,6 @@ other frames to the new dimensions.
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@cindex file names under MS-DOS
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@cindex init file, default name under MS-DOS
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MS-DOS normally uses a backslash, @samp{\}, to separate name units
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within a file name, instead of the slash used on other systems. Emacs
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on MS-DOS permits use of either slash or backslash, and also knows
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about drive letters in file names.
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On MS-DOS, file names are case-insensitive and limited to eight
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characters, plus optionally a period and three more characters. Emacs
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knows enough about these limitations to handle file names that were
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@ -3593,55 +3588,14 @@ using an actual directory named @file{/dev} on any disk.
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@section Printing and MS-DOS
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Printing commands, such as @code{lpr-buffer}
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(@pxref{Printing,,,emacs, the Emacs Manual }) and
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(@pxref{Printing,,,emacs, the Emacs Manual}) and
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@code{ps-print-buffer} (@pxref{PostScript,,,emacs, the Emacs Manual})
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can work in MS-DOS and MS-Windows by sending the output to one of the
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printer ports, if a Posix-style @code{lpr} program is unavailable.
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The same Emacs variables control printing on all systems, but in some
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cases they have different default values on MS-DOS and MS-Windows.
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can work on MS-DOS by sending the output to one of the printer ports,
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if a Posix-style @code{lpr} program is unavailable. The same Emacs
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variables control printing on all systems, but in some cases they have
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different default values on MS-DOS.
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@vindex printer-name @r{(MS-DOS)}
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If you want to use your local printer, printing on it in the usual DOS
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manner, then set the Lisp variable @code{lpr-command} to @code{""} (its
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default value) and @code{printer-name} to the name of the printer
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port---for example, @code{"PRN"}, the usual local printer port (that's
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the default), or @code{"LPT2"}, or @code{"COM1"} for a serial printer.
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You can also set @code{printer-name} to a file name, in which case
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``printed'' output is actually appended to that file. If you set
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@code{printer-name} to @code{"NUL"}, printed output is silently
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discarded (sent to the system null device).
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On MS-Windows, when the Windows network software is installed, you can
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also use a printer shared by another machine by setting
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@code{printer-name} to the UNC share name for that printer---for example,
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@code{"//joes_pc/hp4si"}. (It doesn't matter whether you use forward
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slashes or backslashes here.) To find out the names of shared printers,
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run the command @samp{net view} at a DOS command prompt to obtain a list
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of servers, and @samp{net view @var{server-name}} to see the names of printers
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(and directories) shared by that server. Alternatively, click the
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@samp{Network Neighborhood} icon on your desktop, and look for machines
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which share their printers via the network.
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@cindex @samp{net use}, and printing on MS-Windows
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@cindex networked printers (MS-Windows)
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If the printer doesn't appear in the output of @samp{net view}, or
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if setting @code{printer-name} to the UNC share name doesn't produce a
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hardcopy on that printer, you can use the @samp{net use} command to
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connect a local print port such as @code{"LPT2"} to the networked
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printer. For example, typing @kbd{net use LPT2:
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\\joes_pc\hp4si}@footnote{
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Note that the @samp{net use} command requires the UNC share name to be
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typed with the Windows-style backslashes, while the value of
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@code{printer-name} can be set with either forward- or backslashes.}
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causes Windows to @dfn{capture} the LPT2 port and redirect the printed
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material to the printer connected to the machine @code{joes_pc}.
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After this command, setting @code{printer-name} to @code{"LPT2"}
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should produce the hardcopy on the networked printer.
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With some varieties of Windows network software, you can instruct
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Windows to capture a specific printer port such as @code{"LPT2"}, and
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redirect it to a networked printer via the @w{@code{Control
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Panel->Printers}} applet instead of @samp{net use}.
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@xref{MS-Windows Printing,,,emacs, the Emacs Manual}, for details.
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Some printers expect DOS codepage encoding of non-@acronym{ASCII} text, even
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though they are connected to a Windows machine which uses a different
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@ -3655,95 +3609,11 @@ M-x lpr-region RET} will print the region while converting it to the
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codepage 850 encoding. You may need to create the @code{cp@var{nnn}}
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coding system with @kbd{M-x codepage-setup}.
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If you set @code{printer-name} to a file name, it's best to use an
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absolute file name. Emacs changes the working directory according to
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the default directory of the current buffer, so if the file name in
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@code{printer-name} is relative, you will end up with several such
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files, each one in the directory of the buffer from which the printing
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was done.
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@findex print-buffer @r{(MS-DOS)}
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@findex print-region @r{(MS-DOS)}
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@vindex lpr-headers-switches @r{(MS-DOS)}
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The commands @code{print-buffer} and @code{print-region} call the
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@code{pr} program, or use special switches to the @code{lpr} program, to
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produce headers on each printed page. MS-DOS and MS-Windows don't
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normally have these programs, so by default, the variable
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@code{lpr-headers-switches} is set so that the requests to print page
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headers are silently ignored. Thus, @code{print-buffer} and
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@code{print-region} produce the same output as @code{lpr-buffer} and
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@code{lpr-region}, respectively. If you do have a suitable @code{pr}
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program (for example, from GNU Textutils), set
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@code{lpr-headers-switches} to @code{nil}; Emacs will then call
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@code{pr} to produce the page headers, and print the resulting output as
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specified by @code{printer-name}.
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@vindex print-region-function @r{(MS-DOS)}
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@cindex lpr usage under MS-DOS
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@vindex lpr-command @r{(MS-DOS)}
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@vindex lpr-switches @r{(MS-DOS)}
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Finally, if you do have an @code{lpr} work-alike, you can set the
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variable @code{lpr-command} to @code{"lpr"}. Then Emacs will use
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@code{lpr} for printing, as on other systems. (If the name of the
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program isn't @code{lpr}, set @code{lpr-command} to specify where to
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find it.) The variable @code{lpr-switches} has its standard meaning
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when @code{lpr-command} is not @code{""}. If the variable
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@code{printer-name} has a string value, it is used as the value for the
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@code{-P} option to @code{lpr}, as on Unix.
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@findex ps-print-buffer @r{(MS-DOS)}
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@findex ps-spool-buffer @r{(MS-DOS)}
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@vindex ps-printer-name @r{(MS-DOS)}
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@vindex ps-lpr-command @r{(MS-DOS)}
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@vindex ps-lpr-switches @r{(MS-DOS)}
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A parallel set of variables, @code{ps-lpr-command},
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@code{ps-lpr-switches}, and @code{ps-printer-name} (@pxref{PostScript
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Variables,,,emacs, the Emacs Manual}), defines how PostScript files
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should be printed. These variables are used in the same way as the
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corresponding variables described above for non-PostScript printing.
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Thus, the value of @code{ps-printer-name} is used as the name of the
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device (or file) to which PostScript output is sent, just as
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@code{printer-name} is used for non-PostScript printing. (There are
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two distinct sets of variables in case you have two printers attached
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to two different ports, and only one of them is a PostScript printer.)
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The default value of the variable @code{ps-lpr-command} is @code{""},
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which causes PostScript output to be sent to the printer port specified
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by @code{ps-printer-name}, but @code{ps-lpr-command} can also be set to
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the name of a program which will accept PostScript files. Thus, if you
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have a non-PostScript printer, you can set this variable to the name of
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a PostScript interpreter program (such as Ghostscript). Any switches
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that need to be passed to the interpreter program are specified using
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@code{ps-lpr-switches}. (If the value of @code{ps-printer-name} is a
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string, it will be added to the list of switches as the value for the
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@code{-P} option. This is probably only useful if you are using
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@code{lpr}, so when using an interpreter typically you would set
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@code{ps-printer-name} to something other than a string so it is
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ignored.)
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For example, to use Ghostscript for printing on an Epson printer
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connected to the @samp{LPT2} port, put this in your @file{_emacs} file:
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@example
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(setq ps-printer-name t) ; Ghostscript doesn't understand -P
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(setq ps-lpr-command "c:/gs/gs386")
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(setq ps-lpr-switches '("-q" "-dNOPAUSE"
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"-sDEVICE=epson"
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"-r240x72"
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"-sOutputFile=LPT2"
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"-Ic:/gs"))
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@end example
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@noindent
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(This assumes that Ghostscript is installed in the @file{"c:/gs"}
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directory.)
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@vindex dos-printer
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@vindex dos-ps-printer
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For backwards compatibility, the value of @code{dos-printer}
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(@code{dos-ps-printer}), if it has a value, overrides the value of
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@code{printer-name} (@code{ps-printer-name}), on MS-DOS and MS-Windows
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only.
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@code{printer-name} (@code{ps-printer-name}), on MS-DOS.
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@node MS-DOS and MULE
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