ppgen — generates a pretty-print table from an SDF syntax definition
ppgen
[-A]
[-a]
[-t]
[-i file | --input file]
[-o file | --output file]
[-b]
[-S | --silent]
[--verbose level]
[-k level | --keep level]
[-h | -? | --help]
[--about]
[--version]
ppgen generates from an SDF syntax definition a pretty-print table with an entry for each context-free syntax production with a constructor annotation.
Typically, it is necessary to edit the pretty-print table to add appropriate Box markup to the entries. In a package using make the modified result should be saved under a different name to avoid overwriting it.
Format Options
-AInput is a parse tree.
-aInput as an abstract syntax tree.
-tOutput should be an abstract syntax tree.
Common Input/Output Options
-i file
The input term given by the file name file
In the absence of the -i option, input
will be read from stdin.
-o file
The output will be written to the file given by the file name
file
In the absence of the -o option,
output will be written to stdout.
-bThe output will be written in the binary (BAF) ATerm format.
ATerms in the BAF format require a lot less space than ones in the TAF format, but the Java ATerm library does not currently support baf ATerms. ATerms in the baf format is the preferred format of exchange between Stratego tools.
Common Debugging Options
--about
See --version.
-h, -?, --helpDisplay usage information.
--keep int
Keep intermediate results produced by the internal stages in the
pretty-printing process. This is only useful for debugging. A high
value of int indicates increased eagerness
for keeping intermediate results.
Default setting is 0, indicating that no intermediates will be kept.
-S, --silent
Silent execution. Same as --verbose .
0
--verbose int
Set verbosity level to numerical value int. The
higher the number, the more information about pp-aterm's inner workings are
printed.
Alternatively, int can be set to either of the
following verbosity levels, given in increasing order of verbosity:
emergency, alert, critical,
error, warning, notice,
info, debug, vomit.
--versionDisplays the tool name and version.
Copyright (C) 2002-2005 Eelco Visser <visser@acm.org>
This library 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 2 of the License, or (at your option) any later version.