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H2PH(1) Perl Programmers Reference Guide H2PH(1)
NAME
h2ph - convert .h C header files to .ph Perl header files
SYNOPSIS
h2ph [-d destination directory] [-r â”│ -a] [-l] [headerfiles]
DESCRIPTION
h2ph converts any C header files specified to the corresponding Perl header file
format. It is most easily run while in /usr/include:
cd /usr/include; h2ph * sys/*
or
cd /usr/include; h2ph * sys/* arpa/* netinet/*
or
cd /usr/include; h2ph -r -l .
The output files are placed in the hierarchy rooted at Perl’s architecture depen-
dent library directory. You can specify a different hierarchy with a -d switch.
If run with no arguments, filters standard input to standard output.
OPTIONS
-d destination_dir
Put the resulting .ph files beneath destination_dir, instead of beneath the
default Perl library location ($Config{’installsitsearch’}).
-r Run recursively; if any of headerfiles are directories, then run h2ph on all
files in those directories (and their subdirectories, etc.). -r and -a are
mutually exclusive.
-a Run automagically; convert headerfiles, as well as any .h files which they
include. This option will search for .h files in all directories which your C
compiler ordinarily uses. -a and -r are mutually exclusive.
-l Symbolic links will be replicated in the destination directory. If -l is not
specified, then links are skipped over.
-h Put ‘‘hints’’ in the .ph files which will help in locating problems with h2ph.
In those cases when you require a .ph file containing syntax errors, instead of
the cryptic
[ some error condition ] at (eval mmm) line nnn
you will see the slightly more helpful
[ some error condition ] at filename.ph line nnn
However, the .ph files almost double in size when built using -h.
-D Include the code from the .h file as a comment in the .ph file. This is pri-
marily used for debugging h2ph.
-Q ‘‘Quiet’’ mode; don’t print out the names of the files being converted.
ENVIRONMENT
No environment variables are used.
FILES
/usr/include/*.h
/usr/include/sys/*.h
etc.
AUTHOR
Larry Wall
SEE ALSO
perl(1)
DIAGNOSTICS
The usual warnings if it can’t read or write the files involved.
BUGS
Doesn’t construct the %sizeof array for you.
It doesn’t handle all C constructs, but it does attempt to isolate definitions
inside evals so that you can get at the definitions that it can translate.
It’s only intended as a rough tool. You may need to dicker with the files pro-
duced.
You have to run this program by hand; it’s not run as part of the Perl installa-
tion.
Doesn’t handle complicated expressions built piecemeal, a la:
enum {
FIRST_VALUE,
SECOND_VALUE,
#ifdef ABC
THIRD_VALUE
#endif
};
Doesn’t necessarily locate all of your C compiler’s internally-defined symbols.
perl v5.8.6 2006-03-13 H2PH(1)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache/1.3.41 (Unix) PHP/5.2.5 mod_perl/1.30 mod_gzip/1.3.26.1a
Under GNU General Public License
2009-01-09 06:49 @38.103.63.58 CrawledBy CCBot/1.0 (+http://www.commoncrawl.org/bot.html)