140 lines
2.9 KiB
Text
140 lines
2.9 KiB
Text
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.TH MOTHRA 1
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.SH NAME
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mothra \- retrieve World-Wide Web files
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.SH SYNOPSIS
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.B mothra
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[
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.B -m
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.I mtpt
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] [
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.I url
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]
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.SH DESCRIPTION
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.I Mothra
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retrieves and displays files from the World-Wide Web,
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by name or through hypertext links.
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Web names, called URLs, have a peculiar syntax:
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.IP
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.EX
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http://netlib.att.com/netlib/1127/www/1127.html
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http://akebono.stanford.edu:80/yahoo/
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http://www.teleport.com/~crowell/
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ftp://ftp.gmd.de/music/scores/harrington/Harrington.readme
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.EE
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.PP
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The part up to the first colon gives the protocol for
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retrieving the file.
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.BR http: ,
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Hyper-Text Transfer
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Protocol, is the usual way of accessing web files.
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.B ftp:
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and
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.B gopher:
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are standard Internet services.
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.PD
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.PP
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.B //
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begins the Internet address of the server where the file resides.
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The address may contain a colon and a TCP port
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number, which overrides the
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default port number for the service. Next comes a
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file name. Finally, the file name may be followed by
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.B #
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and a string giving a label within the file where the
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display should begin.
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.PP
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.I Mothra
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starts with the
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.I url
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given on the command line, defaulting to
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the environment variable
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.BR $url .
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.PP
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Mothra uses
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.IR webfs (4)
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to retrive the url data. The mountpoint, default is
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.B /mnt/web,
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can be changed with the
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.BR -b
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.I mtpt .
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.PP
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The display contains the last message from
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.I mothra,
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a box where typed commands appear,
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a scrollable list of previously visited files,
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the title and URL of the current file,
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and the scrollable text of the current file.
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.PP
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Button 1 selects and displays a file, either from the list
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of previously visited pages or from a link (indicated
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by underlined text or a boxed image) in the
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current file. Button 2 shows the URL of a file,
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but does not retrieve or display it.
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Button 3 pops up a menu of commands:
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.TF save\ back
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.TP
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.B save back
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Place a link to the current file in a `back list'
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for future reference.
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.TP
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.B get back
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Retrieve and display the back list.
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.TP
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.B fix cmap
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Adjust the display's color map so that images will
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have correct colors.
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.TP
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.B exit
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Ask for confirmation and quit.
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.PD
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.PP
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The typed commands are:
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.TF save\ back
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.TP
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.BI g " url
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Get the page with the given URL.
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.TP
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.BI s " file
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Save the current file in the given
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.I file.
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.TP
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.B q
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Quit.
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.TP
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.B ?
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.TP
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.B h
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Get help.
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.PD
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.PP
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When
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.I mothra
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retrieves a file that is not an
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HTML document (for example a GIF or JPEG
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image), it will start up an appropriate viewer, for example
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.B fb/9v
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(see
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.IR 9v (9.1))
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for image files.
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.SH FILES
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.B $home/lib/mothra/back.html
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the back list
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.br
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.B $home/lib/mothra/mothra.url
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log of visited URLs
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.br
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.B $home/lib/mothra/mothra.err
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log of error messages, including HTML syntax errors
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.SH SOURCE
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.B /sys/src/cmd/mothra
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.SH "SEE ALSO"
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.IR webfs (4)
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.SH BUGS
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Files are saved in the form received,
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not in the form suggested by the name in an
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.B s
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command.
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.br
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.I Mothra
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is distributed in a preliminary state; it has more than its share of bugs.
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