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This directory contains the source code of the pidl (Perl IDL)
compiler.
pidl.pl is the main file of pidl.
Pidl works by building a parse tree from a .pidl file (a simple
dump of it's internal parse tree) or a .idl file
(a file format mostly like the IDL file format midl uses).
The IDL file parser is in idl.yp (a yacc file converted to
perl code by yapp)
After a parse tree is present, pidl will call one of it's backends
(which one depends on the options given on the command-line). Here is
a list of current backends:
client.pm - Generates client call functions in C
dump.pm - Converts the parse tree back to an IDL file
eparser.pm - Generates a parser for the ethereal network sniffer
header.pm - Generates a header file with structures
parser.pm - Generates pull/push functions for parsing
server.pm - Generates server side implementation in C
template.pm - Generates stubs in C for server implementation
validator.pm - Validates the parse tree
Other files in this directory are:
tables.pl - Generates a table of available interfaces from a list of IDL files
util.pm - Misc utility functions used by *.pm and pidl.pl
Tips for hacking on pidl:
- Look at the pidl's parse tree by using the --keep option and looking
at the generated .pidl file.
- The various backends have a lot in common, if you don't understand how one
implements something, look at the others
- See pidl(1) and the documentation on midl
- See 'info bison' and yapp(1) for information on the file format of idl.yp
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