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=head1 NAME
botch-graph2text - for each vertex in a graph print a formatted line on standard output
=head1 SYNOPSIS
=over
=item B<botch-graph2text> [options] [I<ingraph>] formatstring
=back
=head1 DESCRIPTION
Given a B<formatstring> of the form C<{attr1} {attr2}...>, print a line with
this format for every vertex in the graph, replacing C<{attr}> placeholders
with the value of the attribute C<"attr"> for that vertex. If no attribute with
name C<"attr"> was found, then the placeholder C<{XXX}> remains in the output
string. To write a literal opening or closing curly brace, type them twice,
respectively. The special placeholder C<{__ID__}> is replaced with the vertex
identifier.
If the positional arguments is omitted, then read GraphML or dot from standard
input. Passing a '-' as either argument, explicitly specifies to read the
input from standard input. The input graph type will be determined
automatically.
=head1 OPTIONS
=over 4
=item B<-h, --help>
Display help.
=item B<--vertex=>I<VERT>
This option picks the set of vertices that will be output. The VERT argument is
a key/value pair (separated by a colon) of a graph attribute and its value. By
default (without this option), all vertices of the graph are considered.
The special key C<__ID__> allows one to select the unique vertex identifier.
This option can be specified more than once. The final set of vertices is
chosen such that all vertices match all key/value pairs. Multiple B<--vertex>
options thus form a logical conjunction (they are AND-ed together).
=item B<-v, --verbose>
Be verbose.
=back
=head1 EXAMPLE
Find all source packages that build depend on C<texlive-binaries:amd64 (=2015.20150524.37493-5)>.
Using package selection and reverse dependency cone computation by ceve:
dose-ceve -r "texlive-binaries:amd64 (= 2015.20150524.37493-5)" --deb-native-arch=amd64 -G pkg -T grml deb://Packages debsrc://Sources \
| botch-graph-sources - - \
| botch-graph2text - "{realpackage} (= {realversion})" --vertex type:src \
| sort
Using package selection and ancestor vertex computation by botch:
dose-ceve --deb-native-arch=amd64 -G pkg -T grml deb://Packages debsrc://Sources \
| botch-graph-ancestors - - --target realpackage:texlive-binaries:amd64 realversion:2015.20150524.37493-5 \
| botch-graph-sources - - \
| botch-graph2text - "{realpackage} (= {realversion})" --vertex type:src \
| sort
=head1 BUGS
See L<http://bugs.debian.org/botch>.
=head1 SEE ALSO
Debian doc-base Manual F</usr/share/doc/botch/wiki/Home.html>
=head1 AUTHOR
This man page was written by Johannes Schauer. Botch is written by Johannes
Schauer and Pietro Abate.
=head1 COPYRIGHT
Copyright 2012-2014 Johannes Schauer, Pietro Abate
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option) any
later version. A special linking exception to the GNU Lesser General Public
License applies to this library, see the COPYING file for more information.
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