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/* GNU m4 -- A simple macro processor
Copyright (C) 1999, 2000, 2006, 2007, 2008, 2010 Free Software
Foundation, Inc.
This file is part of GNU M4.
GNU M4 is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GNU M4 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
/* Build using only the exported interfaces, unless NDEBUG is set, in
which case use private symbols to speed things up as much as possible. */
#ifndef NDEBUG
# include <m4/m4module.h>
#else
# include "m4private.h"
#endif
#undef PACKAGE
#include "perlxsi.c" /* Perl stuff */
#undef try
#undef _
/* Rename exported symbols for dlpreload()ing. */
#define m4_builtin_table perl_LTX_m4_builtin_table
#define m4_macro_table perl_LTX_m4_macro_table
/* function macros blind side minargs maxargs */
#define builtin_functions \
BUILTIN (perleval, false, false, false, 0, -1 ) \
#define BUILTIN(handler, macros, blind, side, min, max) M4BUILTIN (handler)
builtin_functions
#undef BUILTIN
const m4_builtin m4_builtin_table[] =
{
#define BUILTIN(handler, macros, blind, side, min, max) \
M4BUILTIN_ENTRY (handler, #handler, macros, blind, side, min, max)
builtin_functions
#undef BUILTIN
{ NULL, NULL, 0, 0, 0 },
};
/* A table for mapping m4 symbol names to simple expansion text. */
const m4_macro m4_macro_table[] =
{
/* name text min max */
{ "__perleval__", "", 0, 0 },
{ NULL, NULL, 0, 0 },
};
static PerlInterpreter *my_perl;
M4INIT_HANDLER (perl)
{
const lt_dlinfo *info = 0;
char *embedding[] = { "", "-e", "0" };
if (module)
info = lt_dlgetinfo (module);
/* Start up a perl parser, when loaded for the first time. */
if (info && (info->ref_count == 1))
{
my_perl = perl_alloc ();
perl_construct (my_perl);
perl_parse (my_perl, xs_init, 3, embedding, NULL);
perl_run (my_perl);
}
}
M4FINISH_HANDLER (perl)
{
const lt_dlinfo *info = 0;
if (module)
info = lt_dlgetinfo (module);
/* Recycle the perl parser, when unloaded for the last time. */
if (info && (info->ref_count == 1))
{
perl_destruct (my_perl);
perl_free (my_perl);
}
}
/**
* perleval([PERLCODE], [...])
**/
M4BUILTIN_HANDLER (perleval)
{
SV *val;
size_t i;
for (i = 1; i < argc; i++)
{
if (i > 1)
obstack_1grow (obs, ',');
val = perl_eval_pv (M4ARG (i), true);
m4_shipout_string (context, obs, SvPV (val, PL_na), SIZE_MAX, false);
}
}
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