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# Copyright (c) 1991 Bell Communications Research, Inc. (Bellcore)
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# Permission to use, copy, modify, and distribute this material
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# for any purpose and without fee is hereby granted, provided
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# that the above copyright notice and this permission notice
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# appear in all copies, and that the name of Bellcore not be
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# used in advertising or publicity pertaining to this
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# material without the specific, prior written permission
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# of an authorized representative of Bellcore. BELLCORE
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# MAKES NO REPRESENTATIONS ABOUT THE ACCURACY OR SUITABILITY
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# OF THIS MATERIAL FOR ANY PURPOSE. IT IS PROVIDED "AS IS",
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# WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.
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# Prototype Mailcap file
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# Note that support for text & multipart are "built in" to metamail,
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# as are rudimentary support for message, and application.
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# However, any of these may be overridden in mailcap.
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# Note that users may override or extend this with a .mailcap
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# file in their own directory. However, there is NO NEED
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# for them to copy entries from this file, as metamail will
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# pick up entries from both the system and personal mailcap files.
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# NOTE: This file has been heavily modified for use as an example
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# configuration file for Lynx
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# In the samples given test=test -n "$DISPLAY" is used to
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# determine if the current session is X capable by checking
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# for the existence of a DISPLAY environment variable.
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# Lynx actually uses a getenv() call for DISPLAY (DECW$DISPLAY
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# on VMS) when it encounters test=test -n "$DISPLAY" or
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# test=test -z "$DISPLAY" in a viewer assignment, instead of
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# spawning to execute "test" via a system() call, i.e., those
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# two strings, respectively, are handled equivalently to the
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# :XWINDOWS and :NON_XWINDOWS flags for VIEWER: assignments
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# in lynx.cfg. Any system without the DISPLAY (or DECW$DISPLAY)
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# environment variable will be assumed to be Non-X.
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# You can append a ';' followed by "q=#.#", e.g., ; q=0.002
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# to set the quality parameter for the Content-Type, which can be
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# included in the Accept: header Lynx sends to http servers (the
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# default quality value is 1.0, and Lynx appends the parameter
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# to the Content-Type only if the value is less than 1.0).
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# You can append a ';' followed by "mxb=#", e.g., ; mxb=1000000
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# to set the maxbytes parameter for the Content-Type, which can be
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# included in the Accept: header Lynx sends to http servers (the
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# default maxbytes value is 0, meaning no maximum, and Lynx appends
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# the parameter to the Content-Type only if the value exceeds 0).
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# The following line is for sites where xv understands jpeg but xloadimage
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# the test line specifies that this viewer should only be used if
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# the display variable is set.
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image/jpeg; xv %s; test=test -n "$DISPLAY"
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# The following sends all other image subtypes to xloadimage
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#image/*; xloadimage %s; ; test=test -n "$DISPLAY"
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# The following sends all other image subtypes to xv
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image/*; xv %s; ; test=test -n "$DISPLAY"
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# If you have an interactive Postscript interpreter, you should think carefully
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# before replacing lpr with it in the following line, because PostScript
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# can be an enormous security hole. It is RELATIVELY harmless
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# when sent to the printer...
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# This one is for NON-X
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#application/postscript; lpr %s \; echo SENT FILE TO PRINTER; ;test=test -z "$DISPLAY"
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# This one is for X. It's already the default via src/HTInit.c.
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#application/postscript; ghostview %s; ; test=test -n "$DISPLAY"
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# The following should be commented out if you do NOT have safe-tcl
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# and should be uncommented if you DO have safe-tcl
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#application/safe-tcl; swish -safe -messaging -f %s
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# A common problem with the mailcap mechanism is getting differential
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# behavior from different programs. This problem is compounded by the fact
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# that some programs, notably Mosaic, do not implement the "test" clause in
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# mailcap files. If you are using Lynx and X Mosaic together you should
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# place all X-centric entries before non-X entries. X Mosaic will use
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# whichever entry is defined first so further entries will be ignored.
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# Lynx exports the environment variable LYNX_VERSION, so it can be tested
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# by scripts to determine if Lynx is running or not. However, the string
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# test=test -n "$LYNX_VERSION"
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# is handled simply as a flag which yields success when Lynx encounters it
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# in the mailcap file (i.e., Lynx does not bother to execute "test" via a
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# system() call to find out if it's running, because it obviously is).
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# Inclusion of the string for that test can be used to prevent other
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# software which reads the mailcap file from acting on assignments intended
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# only for Lynx. The string
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# test=test -z "$LYNX_VERSION"
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# similarly is treated by Lynx simply as a flag which yields failure.
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samples/mailcap
