Daftar Isi

• NAME
• SYNOPSIS
• DESCRIPTION
• OPTIONS
• ENVIRONMENT
• FILES
• AUTHOR
• SEE ALSO
• DIAGNOSTICS
• BUGS

NAME

h2ph - convert .h C header files to .ph Perl header files

SYNOPSIS

h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]

DESCRIPTION

h2phconverts any C header files specified to the corresponding Perl header fileformat.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'sarchitecture dependent library directory. You can specify a differenthierarchy 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 ofbeneath the default Perl library location ($Config{'installsitearch'}).

• -r

  Run recursively; if any of headerfiles are directories, then run h2phon all files in those directories (and their subdirectories, etc.). -rand -a are mutually exclusive.

• -a

  Run automagically; convert headerfiles, as well as any .h fileswhich they include. This option will search for .h files in alldirectories which your C compiler ordinarily uses. -a and -r aremutually exclusive.

• -l

  Symbolic links will be replicated in the destination directory. If -lis not specified, then links are skipped over.

• -h

  Put 'hints' in the .ph files which will help in locating problems withh2ph. In those cases when you require a .ph file containing syntaxerrors, 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 primarily 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 isolatedefinitions inside evals so that you can get at the definitionsthat it can translate.

It's only intended as a rough tool.You may need to dicker with the files produced.

You have to run this program by hand; it's not run as part of the Perlinstallation.

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-definedsymbols.