Adding upstream version 2:9.1.0016.upstream/2%9.1.0016

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1968 insertions, 0 deletions

diff --git a/src/if_perl.xs b/src/if_perl.xs
new file mode 100644
index 0000000..dd504d3
--- /dev/null
+++ b/src/if_perl.xs
@@ -0,0 +1,1968 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved	by Bram Moolenaar
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+/*
+ * if_perl.xs: Main code for Perl interface support.
+ *		Mostly written by Sven Verdoolaege.
+ */
+
+#define _memory_h	/* avoid memset redeclaration */
+#define IN_PERL_FILE	/* don't include if_perl.pro from proto.h */
+
+/*
+ * Currently 32-bit version of ActivePerl is built with VC6 (or MinGW since
+ * ActivePerl 5.18).
+ * (http://community.activestate.com/faq/windows-compilers-perl-modules)
+ * It means that time_t should be 32-bit. However the default size of
+ * time_t is 64-bit since VC8. So we have to define _USE_32BIT_TIME_T.
+ */
+#if defined(WIN32) && !defined(_WIN64)
+# define _USE_32BIT_TIME_T
+#endif
+
+#include "vim.h"
+
+#ifdef _MSC_VER
+// Work around for using MSVC and ActivePerl 5.18.
+# define __inline__ __inline
+// Work around for using MSVC and Strawberry Perl 5.30.
+# define __builtin_expect(expr, val) (expr)
+// Work around for using MSVC and Strawberry Perl 5.32.
+# define NO_THREAD_SAFE_LOCALE
+#endif
+
+#if defined(MSWIN) && defined(DYNAMIC_PERL)
+// Work around for warning C4273 (inconsistent DLL linkage).
+# define PERL_EXT_RE_BUILD
+#endif
+
+#ifdef __GNUC__
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wunused-variable"
+#endif
+
+#include <EXTERN.h>
+#include <perl.h>
+#include <XSUB.h>
+#if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+# include <perliol.h>
+#endif
+
+/* Workaround for perl < 5.8.7 */
+#ifndef PERLIO_FUNCS_DECL
+# ifdef PERLIO_FUNCS_CONST
+#  define PERLIO_FUNCS_DECL(funcs) const PerlIO_funcs funcs
+#  define PERLIO_FUNCS_CAST(funcs) (PerlIO_funcs*)(funcs)
+# else
+#  define PERLIO_FUNCS_DECL(funcs) PerlIO_funcs funcs
+#  define PERLIO_FUNCS_CAST(funcs) (funcs)
+# endif
+#endif
+#ifndef SvREFCNT_inc_void_NN
+# define SvREFCNT_inc_void_NN SvREFCNT_inc
+#endif
+
+/*
+ * Work around clashes between Perl and Vim namespace.	proto.h doesn't
+ * include if_perl.pro and perlsfio.pro when IN_PERL_FILE is defined, because
+ * we need the CV typedef.  proto.h can't be moved to after including
+ * if_perl.h, because we get all sorts of name clashes then.
+ */
+#ifndef PROTO
+# ifndef __MINGW32__
+#  include "proto/if_perl.pro"
+#  include "proto/if_perlsfio.pro"
+# endif
+#endif
+
+// Perl compatibility stuff. This should ensure compatibility with older
+// versions of Perl.
+#ifndef PERL_VERSION
+# include <patchlevel.h>
+# define PERL_REVISION   5
+# define PERL_VERSION    PATCHLEVEL
+# define PERL_SUBVERSION SUBVERSION
+#endif
+
+
+// Work around for ActivePerl 5.20.3+: Avoid generating (g)vim.lib.
+#if defined(ACTIVEPERL_VERSION) && (ACTIVEPERL_VERSION >= 2003) \
+	&& defined(MSWIN) && defined(USE_DYNAMIC_LOADING)
+# undef XS_EXTERNAL
+# define XS_EXTERNAL(name) XSPROTO(name)
+#endif
+
+/*
+ * Quoting Jan Dubois of Active State:
+ *    ActivePerl build 822 still identifies itself as 5.8.8 but already
+ *    contains many of the changes from the upcoming Perl 5.8.9 release.
+ *
+ * The changes include addition of two symbols (Perl_sv_2iv_flags,
+ * Perl_newXS_flags) not present in earlier releases.
+ *
+ * Jan Dubois suggested the following guarding scheme.
+ *
+ * Active State defined ACTIVEPERL_VERSION as a string in versions before
+ * 5.8.8; and so the comparison to 822 below needs to be guarded.
+ */
+#if (PERL_REVISION == 5) && (PERL_VERSION == 8) && (PERL_SUBVERSION >= 8)
+# if (ACTIVEPERL_VERSION >= 822) || (PERL_SUBVERSION >= 9)
+#  define PERL589_OR_LATER
+# endif
+#endif
+#if (PERL_REVISION == 5) && (PERL_VERSION >= 9)
+# define PERL589_OR_LATER
+#endif
+
+#if (PERL_REVISION == 5) && ((PERL_VERSION > 10) || \
+    (PERL_VERSION == 10) && (PERL_SUBVERSION >= 1))
+# define PERL5101_OR_LATER
+#endif
+
+#ifndef pTHX
+# define pTHX void
+# define pTHX_
+#endif
+
+#ifndef EXTERN_C
+# define EXTERN_C
+#endif
+
+// Suppress Infinite warnings when compiling XS modules under macOS 12 Monterey.
+#if defined(__clang__) && defined(__clang_major__) && __clang_major__ > 11
+# pragma clang diagnostic ignored "-Wcompound-token-split-by-macro"
+#endif
+
+/* Compatibility hacks over */
+
+static PerlInterpreter *perl_interp = NULL;
+static void xs_init(pTHX);
+static void VIM_init(void);
+EXTERN_C void boot_DynaLoader(pTHX_ CV*);
+
+/*
+ * For dynamic linked perl.
+ */
+#if defined(DYNAMIC_PERL) || defined(PROTO)
+
+# ifndef DYNAMIC_PERL /* just generating prototypes */
+#  ifdef MSWIN
+typedef int HANDLE;
+#  endif
+typedef int XSINIT_t;
+typedef int XSUBADDR_t;
+# endif
+# ifndef USE_ITHREADS
+typedef int perl_key;
+# endif
+
+# ifdef MSWIN
+#  define PERL_PROC FARPROC
+#  define load_dll vimLoadLib
+#  define symbol_from_dll GetProcAddress
+#  define close_dll FreeLibrary
+#  define load_dll_error GetWin32Error
+# else
+#  include <dlfcn.h>
+#  define HANDLE void*
+#  define PERL_PROC void*
+#  define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
+#  define symbol_from_dll dlsym
+#  define close_dll dlclose
+#  define load_dll_error dlerror
+# endif
+/*
+ * Wrapper defines
+ */
+# define perl_alloc dll_perl_alloc
+# define perl_construct dll_perl_construct
+# define perl_parse dll_perl_parse
+# define perl_run dll_perl_run
+# define perl_destruct dll_perl_destruct
+# define perl_free dll_perl_free
+# if defined(WIN32) || ((PERL_REVISION == 5) && (PERL_VERSION < 38))
+#  define Perl_get_context dll_Perl_get_context
+# endif
+# define Perl_croak dll_Perl_croak
+# ifdef PERL5101_OR_LATER
+#  define Perl_croak_xs_usage dll_Perl_croak_xs_usage
+# endif
+# ifndef PROTO
+#  ifdef PERL_IMPLICIT_CONTEXT
+#   define Perl_croak_nocontext dll_Perl_croak_nocontext
+#  endif
+#  define Perl_call_argv dll_Perl_call_argv
+#  define Perl_call_pv dll_Perl_call_pv
+#  define Perl_eval_sv dll_Perl_eval_sv
+#  define Perl_get_sv dll_Perl_get_sv
+#  define Perl_eval_pv dll_Perl_eval_pv
+#  define Perl_call_method dll_Perl_call_method
+# endif
+# define Perl_dowantarray dll_Perl_dowantarray
+# define Perl_free_tmps dll_Perl_free_tmps
+# define Perl_gv_stashpv dll_Perl_gv_stashpv
+# define Perl_markstack_grow dll_Perl_markstack_grow
+# define Perl_mg_find dll_Perl_mg_find
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 28)
+#  define Perl_mg_get dll_Perl_mg_get
+# endif
+# define Perl_newXS dll_Perl_newXS
+# define Perl_newSV dll_Perl_newSV
+# define Perl_newSViv dll_Perl_newSViv
+# define Perl_newSVpv dll_Perl_newSVpv
+# define Perl_pop_scope dll_Perl_pop_scope
+# define Perl_push_scope dll_Perl_push_scope
+# define Perl_save_int dll_Perl_save_int
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 20)
+#  define Perl_save_strlen dll_Perl_save_strlen
+# endif
+# define Perl_stack_grow dll_Perl_stack_grow
+# define Perl_set_context dll_Perl_set_context
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  define Perl_sv_2bool_flags dll_Perl_sv_2bool_flags
+#  if (PERL_REVISION == 5) && (PERL_VERSION < 22)
+#   define Perl_xs_apiversion_bootcheck dll_Perl_xs_apiversion_bootcheck
+#  endif
+# else
+#  define Perl_sv_2bool dll_Perl_sv_2bool
+# endif
+# define Perl_sv_2iv dll_Perl_sv_2iv
+# define Perl_sv_2mortal dll_Perl_sv_2mortal
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+#  define Perl_sv_2pv_flags dll_Perl_sv_2pv_flags
+#  define Perl_sv_2pv_nolen dll_Perl_sv_2pv_nolen
+# else
+#  define Perl_sv_2pv dll_Perl_sv_2pv
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 32)
+#  define Perl_sv_2pvbyte_flags dll_Perl_sv_2pvbyte_flags
+# endif
+# define Perl_sv_2pvbyte dll_Perl_sv_2pvbyte
+# define Perl_sv_bless dll_Perl_sv_bless
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+#  define Perl_sv_catpvn_flags dll_Perl_sv_catpvn_flags
+# else
+#  define Perl_sv_catpvn dll_Perl_sv_catpvn
+# endif
+# ifdef PERL589_OR_LATER
+#  define Perl_sv_2iv_flags dll_Perl_sv_2iv_flags
+#  define Perl_newXS_flags dll_Perl_newXS_flags
+# endif
+# define Perl_sv_free dll_Perl_sv_free
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 10)
+#  define Perl_sv_free2 dll_Perl_sv_free2
+# endif
+# define Perl_sv_isa dll_Perl_sv_isa
+# define Perl_sv_magic dll_Perl_sv_magic
+# define Perl_sv_setiv dll_Perl_sv_setiv
+# define Perl_sv_setpv dll_Perl_sv_setpv
+# define Perl_sv_setpvn dll_Perl_sv_setpvn
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+#  define Perl_sv_setsv_flags dll_Perl_sv_setsv_flags
+# else
+#  define Perl_sv_setsv dll_Perl_sv_setsv
+# endif
+# define Perl_sv_upgrade dll_Perl_sv_upgrade
+# define Perl_Tstack_sp_ptr dll_Perl_Tstack_sp_ptr
+# define Perl_Top_ptr dll_Perl_Top_ptr
+# define Perl_Tstack_base_ptr dll_Perl_Tstack_base_ptr
+# define Perl_Tstack_max_ptr dll_Perl_Tstack_max_ptr
+# define Perl_Ttmps_ix_ptr dll_Perl_Ttmps_ix_ptr
+# define Perl_Ttmps_floor_ptr dll_Perl_Ttmps_floor_ptr
+# define Perl_Tmarkstack_ptr_ptr dll_Perl_Tmarkstack_ptr_ptr
+# define Perl_Tmarkstack_max_ptr dll_Perl_Tmarkstack_max_ptr
+# define Perl_TSv_ptr dll_Perl_TSv_ptr
+# define Perl_TXpv_ptr dll_Perl_TXpv_ptr
+# define Perl_Tna_ptr dll_Perl_Tna_ptr
+# define Perl_Idefgv_ptr dll_Perl_Idefgv_ptr
+# define Perl_Ierrgv_ptr dll_Perl_Ierrgv_ptr
+# define Perl_Isv_yes_ptr dll_Perl_Isv_yes_ptr
+# define boot_DynaLoader dll_boot_DynaLoader
+# define Perl_Gthr_key_ptr dll_Perl_Gthr_key_ptr
+
+# define Perl_sys_init dll_Perl_sys_init
+# define Perl_sys_term dll_Perl_sys_term
+# define Perl_ISv_ptr dll_Perl_ISv_ptr
+# define Perl_Istack_max_ptr dll_Perl_Istack_max_ptr
+# define Perl_Istack_base_ptr dll_Perl_Istack_base_ptr
+# define Perl_Itmps_ix_ptr dll_Perl_Itmps_ix_ptr
+# define Perl_Itmps_floor_ptr dll_Perl_Itmps_floor_ptr
+# define Perl_IXpv_ptr dll_Perl_IXpv_ptr
+# define Perl_Ina_ptr dll_Perl_Ina_ptr
+# define Perl_Imarkstack_ptr_ptr dll_Perl_Imarkstack_ptr_ptr
+# define Perl_Imarkstack_max_ptr dll_Perl_Imarkstack_max_ptr
+# define Perl_Istack_sp_ptr dll_Perl_Istack_sp_ptr
+# define Perl_Iop_ptr dll_Perl_Iop_ptr
+# define Perl_call_list dll_Perl_call_list
+# define Perl_Iscopestack_ix_ptr dll_Perl_Iscopestack_ix_ptr
+# define Perl_Iunitcheckav_ptr dll_Perl_Iunitcheckav_ptr
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 22)
+#  define Perl_xs_handshake dll_Perl_xs_handshake
+#  define Perl_xs_boot_epilog dll_Perl_xs_boot_epilog
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  ifdef USE_ITHREADS
+#   define PL_thr_key *dll_PL_thr_key
+#  endif
+# endif
+# ifdef PERL_USE_THREAD_LOCAL
+#  define PL_current_context *dll_PL_current_context
+# endif
+# define Perl_hv_iternext_flags dll_Perl_hv_iternext_flags
+# define Perl_hv_iterinit dll_Perl_hv_iterinit
+# define Perl_hv_iterkey dll_Perl_hv_iterkey
+# define Perl_hv_iterval dll_Perl_hv_iterval
+# define Perl_av_fetch dll_Perl_av_fetch
+# define Perl_av_len dll_Perl_av_len
+# define Perl_sv_2nv_flags dll_Perl_sv_2nv_flags
+# if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+#  define PerlIOBase_pushed dll_PerlIOBase_pushed
+#  define PerlIO_define_layer dll_PerlIO_define_layer
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 24)
+#  define Perl_savetmps dll_Perl_savetmps
+# endif
+
+/*
+ * Declare HANDLE for perl.dll and function pointers.
+ */
+static HANDLE hPerlLib = NULL;
+
+static PerlInterpreter* (*perl_alloc)(void);
+static void (*perl_construct)(PerlInterpreter*);
+static void (*perl_destruct)(PerlInterpreter*);
+static void (*perl_free)(PerlInterpreter*);
+static int (*perl_run)(PerlInterpreter*);
+static int (*perl_parse)(PerlInterpreter*, XSINIT_t, int, char**, char**);
+# if defined(WIN32) || ((PERL_REVISION == 5) && (PERL_VERSION < 38))
+static void* (*Perl_get_context)(void);
+# endif
+static void (*Perl_croak)(pTHX_ const char*, ...) __attribute__noreturn__;
+# ifdef PERL5101_OR_LATER
+/* Perl-5.18 has a different Perl_croak_xs_usage signature. */
+#  if (PERL_REVISION == 5) && (PERL_VERSION >= 18)
+static void (*Perl_croak_xs_usage)(const CV *const, const char *const params)
+						    __attribute__noreturn__;
+#  else
+static void (*Perl_croak_xs_usage)(pTHX_ const CV *const, const char *const params)
+						    __attribute__noreturn__;
+#  endif
+# endif
+# ifdef PERL_IMPLICIT_CONTEXT
+static void (*Perl_croak_nocontext)(const char*, ...) __attribute__noreturn__;
+# endif
+static I32 (*Perl_dowantarray)(pTHX);
+static void (*Perl_free_tmps)(pTHX);
+static HV* (*Perl_gv_stashpv)(pTHX_ const char*, I32);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 22)
+static I32* (*Perl_markstack_grow)(pTHX);
+# else
+static void (*Perl_markstack_grow)(pTHX);
+# endif
+static MAGIC* (*Perl_mg_find)(pTHX_ SV*, int);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 28)
+static int (*Perl_mg_get)(pTHX_ SV*);
+# endif
+static CV* (*Perl_newXS)(pTHX_ char*, XSUBADDR_t, char*);
+static SV* (*Perl_newSV)(pTHX_ STRLEN);
+static SV* (*Perl_newSViv)(pTHX_ IV);
+static SV* (*Perl_newSVpv)(pTHX_ const char*, STRLEN);
+static I32 (*Perl_call_argv)(pTHX_ const char*, I32, char**);
+static I32 (*Perl_call_pv)(pTHX_ const char*, I32);
+static I32 (*Perl_eval_sv)(pTHX_ SV*, I32);
+static SV* (*Perl_get_sv)(pTHX_ const char*, I32);
+static SV* (*Perl_eval_pv)(pTHX_ const char*, I32);
+static SV* (*Perl_call_method)(pTHX_ const char*, I32);
+static void (*Perl_pop_scope)(pTHX);
+static void (*Perl_push_scope)(pTHX);
+static void (*Perl_save_int)(pTHX_ int*);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 20)
+static void (*Perl_save_strlen)(pTHX_ STRLEN* ptr);
+# endif
+static SV** (*Perl_stack_grow)(pTHX_ SV**, SV**p, int);
+static SV** (*Perl_set_context)(void*);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+static bool (*Perl_sv_2bool_flags)(pTHX_ SV*, I32);
+#  if (PERL_REVISION == 5) && (PERL_VERSION < 22)
+static void (*Perl_xs_apiversion_bootcheck)(pTHX_ SV *module, const char *api_p, STRLEN api_len);
+#  endif
+# else
+static bool (*Perl_sv_2bool)(pTHX_ SV*);
+# endif
+static IV (*Perl_sv_2iv)(pTHX_ SV*);
+static SV* (*Perl_sv_2mortal)(pTHX_ SV*);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+static char* (*Perl_sv_2pv_flags)(pTHX_ SV*, STRLEN* const, const U32);
+static char* (*Perl_sv_2pv_nolen)(pTHX_ SV*);
+# else
+static char* (*Perl_sv_2pv)(pTHX_ SV*, STRLEN*);
+# endif
+static char* (*Perl_sv_2pvbyte)(pTHX_ SV*, STRLEN*);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 32)
+static char* (*Perl_sv_2pvbyte_flags)(pTHX_ SV*, STRLEN* const, const U32);
+# endif
+static SV* (*Perl_sv_bless)(pTHX_ SV*, HV*);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+static void (*Perl_sv_catpvn_flags)(pTHX_ SV* , const char*, STRLEN, I32);
+# else
+static void (*Perl_sv_catpvn)(pTHX_ SV*, const char*, STRLEN);
+# endif
+# ifdef PERL589_OR_LATER
+static IV (*Perl_sv_2iv_flags)(pTHX_ SV* sv, I32 flags);
+static CV * (*Perl_newXS_flags)(pTHX_ const char *name, XSUBADDR_t subaddr, const char *const filename, const char *const proto, U32 flags);
+# endif
+static void (*Perl_sv_free)(pTHX_ SV*);
+static int (*Perl_sv_isa)(pTHX_ SV*, const char*);
+static void (*Perl_sv_magic)(pTHX_ SV*, SV*, int, const char*, I32);
+static void (*Perl_sv_setiv)(pTHX_ SV*, IV);
+static void (*Perl_sv_setpv)(pTHX_ SV*, const char*);
+static void (*Perl_sv_setpvn)(pTHX_ SV*, const char*, STRLEN);
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+static void (*Perl_sv_setsv_flags)(pTHX_ SV*, SV*, I32);
+# else
+static void (*Perl_sv_setsv)(pTHX_ SV*, SV*);
+# endif
+static bool (*Perl_sv_upgrade)(pTHX_ SV*, U32);
+# if (PERL_REVISION == 5) && (PERL_VERSION < 10)
+static SV*** (*Perl_Tstack_sp_ptr)(register PerlInterpreter*);
+static OP** (*Perl_Top_ptr)(register PerlInterpreter*);
+static SV*** (*Perl_Tstack_base_ptr)(register PerlInterpreter*);
+static SV*** (*Perl_Tstack_max_ptr)(register PerlInterpreter*);
+static I32* (*Perl_Ttmps_ix_ptr)(register PerlInterpreter*);
+static I32* (*Perl_Ttmps_floor_ptr)(register PerlInterpreter*);
+static I32** (*Perl_Tmarkstack_ptr_ptr)(register PerlInterpreter*);
+static I32** (*Perl_Tmarkstack_max_ptr)(register PerlInterpreter*);
+static SV** (*Perl_TSv_ptr)(register PerlInterpreter*);
+static XPV** (*Perl_TXpv_ptr)(register PerlInterpreter*);
+static STRLEN* (*Perl_Tna_ptr)(register PerlInterpreter*);
+# else
+/* Perl-5.18 has a different Perl_sv_free2 signature. */
+#  if (PERL_REVISION == 5) && (PERL_VERSION >= 18)
+static void (*Perl_sv_free2)(pTHX_ SV*, const U32);
+#  else
+static void (*Perl_sv_free2)(pTHX_ SV*);
+#  endif
+static void (*Perl_sys_init)(int* argc, char*** argv);
+static void (*Perl_sys_term)(void);
+static void (*Perl_call_list)(pTHX_ I32, AV*);
+#  if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  else
+static SV** (*Perl_ISv_ptr)(register PerlInterpreter*);
+static SV*** (*Perl_Istack_max_ptr)(register PerlInterpreter*);
+static SV*** (*Perl_Istack_base_ptr)(register PerlInterpreter*);
+static XPV** (*Perl_IXpv_ptr)(register PerlInterpreter*);
+static I32* (*Perl_Itmps_ix_ptr)(register PerlInterpreter*);
+static I32* (*Perl_Itmps_floor_ptr)(register PerlInterpreter*);
+static STRLEN* (*Perl_Ina_ptr)(register PerlInterpreter*);
+static I32** (*Perl_Imarkstack_ptr_ptr)(register PerlInterpreter*);
+static I32** (*Perl_Imarkstack_max_ptr)(register PerlInterpreter*);
+static SV*** (*Perl_Istack_sp_ptr)(register PerlInterpreter*);
+static OP** (*Perl_Iop_ptr)(register PerlInterpreter*);
+static I32* (*Perl_Iscopestack_ix_ptr)(register PerlInterpreter*);
+static AV** (*Perl_Iunitcheckav_ptr)(register PerlInterpreter*);
+#  endif
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 22)
+static I32 (*Perl_xs_handshake)(const U32, void *, const char *, ...);
+static void (*Perl_xs_boot_epilog)(pTHX_ const U32);
+# endif
+
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  ifdef USE_ITHREADS
+static perl_key* dll_PL_thr_key;
+#  endif
+# else
+static GV** (*Perl_Idefgv_ptr)(register PerlInterpreter*);
+static GV** (*Perl_Ierrgv_ptr)(register PerlInterpreter*);
+static SV* (*Perl_Isv_yes_ptr)(register PerlInterpreter*);
+static perl_key* (*Perl_Gthr_key_ptr)_((pTHX));
+# endif
+# ifdef PERL_USE_THREAD_LOCAL
+static void** dll_PL_current_context;
+# endif
+static void (*boot_DynaLoader)_((pTHX_ CV*));
+static HE * (*Perl_hv_iternext_flags)(pTHX_ HV *, I32);
+static I32 (*Perl_hv_iterinit)(pTHX_ HV *);
+static char * (*Perl_hv_iterkey)(pTHX_ HE *, I32 *);
+static SV * (*Perl_hv_iterval)(pTHX_ HV *, HE *);
+static SV** (*Perl_av_fetch)(pTHX_ AV *, SSize_t, I32);
+static SSize_t (*Perl_av_len)(pTHX_ AV *);
+static NV (*Perl_sv_2nv_flags)(pTHX_ SV *const, const I32);
+# if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+static IV (*PerlIOBase_pushed)(pTHX_ PerlIO *, const char *, SV *, PerlIO_funcs *);
+static void (*PerlIO_define_layer)(pTHX_ PerlIO_funcs *);
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 24)
+static void (*Perl_savetmps)(pTHX);
+# endif
+
+/*
+ * Table of name to function pointer of perl.
+ */
+static struct {
+    char* name;
+    PERL_PROC* ptr;
+} perl_funcname_table[] = {
+    {"perl_alloc", (PERL_PROC*)&perl_alloc},
+    {"perl_construct", (PERL_PROC*)&perl_construct},
+    {"perl_destruct", (PERL_PROC*)&perl_destruct},
+    {"perl_free", (PERL_PROC*)&perl_free},
+    {"perl_run", (PERL_PROC*)&perl_run},
+    {"perl_parse", (PERL_PROC*)&perl_parse},
+# if defined(WIN32) || ((PERL_REVISION == 5) && (PERL_VERSION < 38))
+    {"Perl_get_context", (PERL_PROC*)&Perl_get_context},
+# endif
+    {"Perl_croak", (PERL_PROC*)&Perl_croak},
+# ifdef PERL5101_OR_LATER
+    {"Perl_croak_xs_usage", (PERL_PROC*)&Perl_croak_xs_usage},
+# endif
+# ifdef PERL_IMPLICIT_CONTEXT
+    {"Perl_croak_nocontext", (PERL_PROC*)&Perl_croak_nocontext},
+# endif
+    {"Perl_dowantarray", (PERL_PROC*)&Perl_dowantarray},
+    {"Perl_free_tmps", (PERL_PROC*)&Perl_free_tmps},
+    {"Perl_gv_stashpv", (PERL_PROC*)&Perl_gv_stashpv},
+    {"Perl_markstack_grow", (PERL_PROC*)&Perl_markstack_grow},
+    {"Perl_mg_find", (PERL_PROC*)&Perl_mg_find},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 28)
+    {"Perl_mg_get", (PERL_PROC*)&Perl_mg_get},
+# endif
+    {"Perl_newXS", (PERL_PROC*)&Perl_newXS},
+    {"Perl_newSV", (PERL_PROC*)&Perl_newSV},
+    {"Perl_newSViv", (PERL_PROC*)&Perl_newSViv},
+    {"Perl_newSVpv", (PERL_PROC*)&Perl_newSVpv},
+    {"Perl_call_argv", (PERL_PROC*)&Perl_call_argv},
+    {"Perl_call_pv", (PERL_PROC*)&Perl_call_pv},
+    {"Perl_eval_sv", (PERL_PROC*)&Perl_eval_sv},
+    {"Perl_get_sv", (PERL_PROC*)&Perl_get_sv},
+    {"Perl_eval_pv", (PERL_PROC*)&Perl_eval_pv},
+    {"Perl_call_method", (PERL_PROC*)&Perl_call_method},
+    {"Perl_pop_scope", (PERL_PROC*)&Perl_pop_scope},
+    {"Perl_push_scope", (PERL_PROC*)&Perl_push_scope},
+    {"Perl_save_int", (PERL_PROC*)&Perl_save_int},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 20)
+    {"Perl_save_strlen", (PERL_PROC*)&Perl_save_strlen},
+# endif
+    {"Perl_stack_grow", (PERL_PROC*)&Perl_stack_grow},
+    {"Perl_set_context", (PERL_PROC*)&Perl_set_context},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+    {"Perl_sv_2bool_flags", (PERL_PROC*)&Perl_sv_2bool_flags},
+#  if (PERL_REVISION == 5) && (PERL_VERSION < 22)
+    {"Perl_xs_apiversion_bootcheck",(PERL_PROC*)&Perl_xs_apiversion_bootcheck},
+#  endif
+# else
+    {"Perl_sv_2bool", (PERL_PROC*)&Perl_sv_2bool},
+# endif
+    {"Perl_sv_2iv", (PERL_PROC*)&Perl_sv_2iv},
+    {"Perl_sv_2mortal", (PERL_PROC*)&Perl_sv_2mortal},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+    {"Perl_sv_2pv_flags", (PERL_PROC*)&Perl_sv_2pv_flags},
+    {"Perl_sv_2pv_nolen", (PERL_PROC*)&Perl_sv_2pv_nolen},
+# else
+    {"Perl_sv_2pv", (PERL_PROC*)&Perl_sv_2pv},
+# endif
+    {"Perl_sv_2pvbyte", (PERL_PROC*)&Perl_sv_2pvbyte},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 32)
+    {"Perl_sv_2pvbyte_flags", (PERL_PROC*)&Perl_sv_2pvbyte_flags},
+# endif
+# ifdef PERL589_OR_LATER
+    {"Perl_sv_2iv_flags", (PERL_PROC*)&Perl_sv_2iv_flags},
+    {"Perl_newXS_flags", (PERL_PROC*)&Perl_newXS_flags},
+# endif
+    {"Perl_sv_bless", (PERL_PROC*)&Perl_sv_bless},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+    {"Perl_sv_catpvn_flags", (PERL_PROC*)&Perl_sv_catpvn_flags},
+# else
+    {"Perl_sv_catpvn", (PERL_PROC*)&Perl_sv_catpvn},
+# endif
+    {"Perl_sv_free", (PERL_PROC*)&Perl_sv_free},
+    {"Perl_sv_isa", (PERL_PROC*)&Perl_sv_isa},
+    {"Perl_sv_magic", (PERL_PROC*)&Perl_sv_magic},
+    {"Perl_sv_setiv", (PERL_PROC*)&Perl_sv_setiv},
+    {"Perl_sv_setpv", (PERL_PROC*)&Perl_sv_setpv},
+    {"Perl_sv_setpvn", (PERL_PROC*)&Perl_sv_setpvn},
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+    {"Perl_sv_setsv_flags", (PERL_PROC*)&Perl_sv_setsv_flags},
+# else
+    {"Perl_sv_setsv", (PERL_PROC*)&Perl_sv_setsv},
+# endif
+    {"Perl_sv_upgrade", (PERL_PROC*)&Perl_sv_upgrade},
+# if (PERL_REVISION == 5) && (PERL_VERSION < 10)
+    {"Perl_Tstack_sp_ptr", (PERL_PROC*)&Perl_Tstack_sp_ptr},
+    {"Perl_Top_ptr", (PERL_PROC*)&Perl_Top_ptr},
+    {"Perl_Tstack_base_ptr", (PERL_PROC*)&Perl_Tstack_base_ptr},
+    {"Perl_Tstack_max_ptr", (PERL_PROC*)&Perl_Tstack_max_ptr},
+    {"Perl_Ttmps_ix_ptr", (PERL_PROC*)&Perl_Ttmps_ix_ptr},
+    {"Perl_Ttmps_floor_ptr", (PERL_PROC*)&Perl_Ttmps_floor_ptr},
+    {"Perl_Tmarkstack_ptr_ptr", (PERL_PROC*)&Perl_Tmarkstack_ptr_ptr},
+    {"Perl_Tmarkstack_max_ptr", (PERL_PROC*)&Perl_Tmarkstack_max_ptr},
+    {"Perl_TSv_ptr", (PERL_PROC*)&Perl_TSv_ptr},
+    {"Perl_TXpv_ptr", (PERL_PROC*)&Perl_TXpv_ptr},
+    {"Perl_Tna_ptr", (PERL_PROC*)&Perl_Tna_ptr},
+# else
+    {"Perl_sv_free2", (PERL_PROC*)&Perl_sv_free2},
+    {"Perl_sys_init", (PERL_PROC*)&Perl_sys_init},
+    {"Perl_sys_term", (PERL_PROC*)&Perl_sys_term},
+    {"Perl_call_list", (PERL_PROC*)&Perl_call_list},
+#  if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  else
+    {"Perl_ISv_ptr", (PERL_PROC*)&Perl_ISv_ptr},
+    {"Perl_Istack_max_ptr", (PERL_PROC*)&Perl_Istack_max_ptr},
+    {"Perl_Istack_base_ptr", (PERL_PROC*)&Perl_Istack_base_ptr},
+    {"Perl_IXpv_ptr", (PERL_PROC*)&Perl_IXpv_ptr},
+    {"Perl_Itmps_ix_ptr", (PERL_PROC*)&Perl_Itmps_ix_ptr},
+    {"Perl_Itmps_floor_ptr", (PERL_PROC*)&Perl_Itmps_floor_ptr},
+    {"Perl_Ina_ptr", (PERL_PROC*)&Perl_Ina_ptr},
+    {"Perl_Imarkstack_ptr_ptr", (PERL_PROC*)&Perl_Imarkstack_ptr_ptr},
+    {"Perl_Imarkstack_max_ptr", (PERL_PROC*)&Perl_Imarkstack_max_ptr},
+    {"Perl_Istack_sp_ptr", (PERL_PROC*)&Perl_Istack_sp_ptr},
+    {"Perl_Iop_ptr", (PERL_PROC*)&Perl_Iop_ptr},
+    {"Perl_Iscopestack_ix_ptr", (PERL_PROC*)&Perl_Iscopestack_ix_ptr},
+    {"Perl_Iunitcheckav_ptr", (PERL_PROC*)&Perl_Iunitcheckav_ptr},
+#  endif
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 22)
+    {"Perl_xs_handshake", (PERL_PROC*)&Perl_xs_handshake},
+    {"Perl_xs_boot_epilog", (PERL_PROC*)&Perl_xs_boot_epilog},
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  ifdef USE_ITHREADS
+    {"PL_thr_key", (PERL_PROC*)&dll_PL_thr_key},
+#  endif
+# ifdef PERL_USE_THREAD_LOCAL
+    {"PL_current_context", (PERL_PROC*)&dll_PL_current_context},
+# endif
+# else
+    {"Perl_Idefgv_ptr", (PERL_PROC*)&Perl_Idefgv_ptr},
+    {"Perl_Ierrgv_ptr", (PERL_PROC*)&Perl_Ierrgv_ptr},
+    {"Perl_Isv_yes_ptr", (PERL_PROC*)&Perl_Isv_yes_ptr},
+    {"Perl_Gthr_key_ptr", (PERL_PROC*)&Perl_Gthr_key_ptr},
+# endif
+    {"boot_DynaLoader", (PERL_PROC*)&boot_DynaLoader},
+    {"Perl_hv_iternext_flags", (PERL_PROC*)&Perl_hv_iternext_flags},
+    {"Perl_hv_iterinit", (PERL_PROC*)&Perl_hv_iterinit},
+    {"Perl_hv_iterkey", (PERL_PROC*)&Perl_hv_iterkey},
+    {"Perl_hv_iterval", (PERL_PROC*)&Perl_hv_iterval},
+    {"Perl_av_fetch", (PERL_PROC*)&Perl_av_fetch},
+    {"Perl_av_len", (PERL_PROC*)&Perl_av_len},
+    {"Perl_sv_2nv_flags", (PERL_PROC*)&Perl_sv_2nv_flags},
+# if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+    {"PerlIOBase_pushed", (PERL_PROC*)&PerlIOBase_pushed},
+    {"PerlIO_define_layer", (PERL_PROC*)&PerlIO_define_layer},
+# endif
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 24)
+    {"Perl_savetmps", (PERL_PROC*)&Perl_savetmps},
+# endif
+    {"", NULL},
+};
+
+# if (PERL_REVISION == 5) && (PERL_VERSION <= 30)
+// In 5.30, GIMME_V requires linking to Perl_block_gimme() instead of being
+// completely inline. Just use the deprecated GIMME for simplicity.
+#  undef GIMME_V
+#  define GIMME_V GIMME
+# endif
+
+/*
+ * Make all runtime-links of perl.
+ *
+ * 1. Get module handle using dlopen() or vimLoadLib().
+ * 2. Get pointer to perl function by GetProcAddress.
+ * 3. Repeat 2, until get all functions will be used.
+ *
+ * Parameter 'libname' provides name of DLL.
+ * Return OK or FAIL.
+ */
+    static int
+perl_runtime_link_init(char *libname, int verbose)
+{
+    int i;
+
+    if (hPerlLib != NULL)
+	return OK;
+    if ((hPerlLib = load_dll(libname)) == NULL)
+    {
+	if (verbose)
+	    semsg(_("E370: Could not load library %s"), libname);
+	return FAIL;
+    }
+    for (i = 0; perl_funcname_table[i].ptr; ++i)
+    {
+	if (!(*perl_funcname_table[i].ptr = symbol_from_dll(hPerlLib,
+			perl_funcname_table[i].name)))
+	{
+	    close_dll(hPerlLib);
+	    hPerlLib = NULL;
+	    if (verbose)
+		semsg((const char *)_(e_could_not_load_library_function_str), perl_funcname_table[i].name);
+	    return FAIL;
+	}
+    }
+    return OK;
+}
+
+/*
+ * If runtime-link-perl(DLL) was loaded successfully, return TRUE.
+ * There were no DLL loaded, return FALSE.
+ */
+    int
+perl_enabled(int verbose)
+{
+    return perl_runtime_link_init((char *)p_perldll, verbose) == OK;
+}
+#endif /* DYNAMIC_PERL */
+
+#if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+static void vim_IOLayer_init(void);
+#endif
+
+/*
+ * perl_init(): initialize perl interpreter
+ * We have to call perl_parse to initialize some structures,
+ * there's nothing to actually parse.
+ */
+    static void
+perl_init(void)
+{
+    char *bootargs[] = { "VI", NULL };
+    int argc = 3;
+    static char *argv[] = { "", "-e", "" };
+
+#if (PERL_REVISION == 5) && (PERL_VERSION >= 10)
+    Perl_sys_init(&argc, (char***)&argv);
+#endif
+    perl_interp = perl_alloc();
+    perl_construct(perl_interp);
+    perl_parse(perl_interp, xs_init, argc, argv, 0);
+    perl_call_argv("VIM::bootstrap", (long)G_DISCARD, bootargs);
+    VIM_init();
+#ifdef USE_SFIO
+    sfdisc(PerlIO_stdout(), sfdcnewvim());
+    sfdisc(PerlIO_stderr(), sfdcnewvim());
+    sfsetbuf(PerlIO_stdout(), NULL, 0);
+    sfsetbuf(PerlIO_stderr(), NULL, 0);
+#elif defined(PERLIO_LAYERS)
+    vim_IOLayer_init();
+#endif
+}
+
+/*
+ * Clean up after ourselves.
+ */
+    void
+perl_end(void)
+{
+    if (perl_interp)
+    {
+	perl_run(perl_interp);
+	perl_destruct(perl_interp);
+	perl_free(perl_interp);
+	perl_interp = NULL;
+#if (PERL_REVISION == 5) && (PERL_VERSION >= 10)
+	Perl_sys_term();
+#endif
+    }
+}
+
+/*
+ * msg_split(): send a message to the message handling routines
+ * split at '\n' first though.
+ */
+    void
+msg_split(
+    char_u	*s,
+    int		attr)	/* highlighting attributes */
+{
+    char *next;
+    char *token = (char *)s;
+
+    while ((next = strchr(token, '\n')) && !got_int)
+    {
+	*next++ = '\0';			/* replace \n with \0 */
+	msg_attr(token, attr);
+	token = next;
+    }
+    if (*token && !got_int)
+	msg_attr(token, attr);
+}
+
+#ifndef FEAT_EVAL
+/*
+ * This stub is needed because an "#ifdef FEAT_EVAL" around Eval() doesn't
+ * work properly.
+ */
+    char_u *
+eval_to_string(
+    char_u	*arg UNUSED,
+    int		convert UNUSED,
+    int		use_simple_function UNUSED)
+{
+    return NULL;
+}
+#endif
+
+/*
+ * Create a new reference to an SV pointing to the SCR structure
+ * The b_perl_private/w_perl_private part of the SCR structure points to the
+ * SV, so there can only be one such SV for a particular SCR structure.  When
+ * the last reference has gone (DESTROY is called),
+ * b_perl_private/w_perl_private is reset; When the screen goes away before
+ * all references are gone, the value of the SV is reset;
+ * any subsequent use of any of those reference will produce
+ * a warning. (see typemap)
+ */
+
+    static SV *
+newWINrv(SV *rv, win_T *ptr)
+{
+    sv_upgrade(rv, SVt_RV);
+    if (ptr->w_perl_private == NULL)
+    {
+	ptr->w_perl_private = newSV(0);
+	sv_setiv(ptr->w_perl_private, PTR2IV(ptr));
+    }
+    SvREFCNT_inc_void_NN(ptr->w_perl_private);
+    SvRV(rv) = ptr->w_perl_private;
+    SvROK_on(rv);
+    return sv_bless(rv, gv_stashpv("VIWIN", TRUE));
+}
+
+    static SV *
+newBUFrv(SV *rv, buf_T *ptr)
+{
+    sv_upgrade(rv, SVt_RV);
+    if (ptr->b_perl_private == NULL)
+    {
+	ptr->b_perl_private = newSV(0);
+	sv_setiv(ptr->b_perl_private, PTR2IV(ptr));
+    }
+    SvREFCNT_inc_void_NN(ptr->b_perl_private);
+    SvRV(rv) = ptr->b_perl_private;
+    SvROK_on(rv);
+    return sv_bless(rv, gv_stashpv("VIBUF", TRUE));
+}
+
+#if 0
+SV *__sv_save[1024];
+int __sv_save_ix;
+#  define D_Save_Sv(sv) do { if (__sv_save_ix < 1024) __sv_save[__sv_save_ix++] = (sv); } while (0)
+#else
+#  define D_Save_Sv(sv) NOOP
+#endif
+
+/*
+ * perl_win_free
+ *	Remove all references to the window to be destroyed
+ */
+    void
+perl_win_free(win_T *wp)
+{
+    if (wp->w_perl_private && perl_interp != NULL)
+    {
+	SV *sv = (SV*)wp->w_perl_private;
+	D_Save_Sv(sv);
+	sv_setiv(sv, 0);
+	SvREFCNT_dec(sv);
+    }
+    wp->w_perl_private = NULL;
+}
+
+    void
+perl_buf_free(buf_T *bp)
+{
+    if (bp->b_perl_private && perl_interp != NULL)
+    {
+	SV *sv = (SV *)bp->b_perl_private;
+	D_Save_Sv(sv);
+	sv_setiv(sv, 0);
+	SvREFCNT_dec(sv);
+    }
+    bp->b_perl_private = NULL;
+}
+
+#ifndef PROTO
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+I32 cur_val(pTHX_ IV iv, SV *sv);
+# else
+I32 cur_val(IV iv, SV *sv);
+# endif
+
+/*
+ * Handler for the magic variables $main::curwin and $main::curbuf.
+ * The handler is put into the magic vtbl for these variables.
+ * (This is effectively a C-level equivalent of a tied variable).
+ * There is no "set" function as the variables are read-only.
+ */
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 8)
+I32 cur_val(pTHX_ IV iv, SV *sv)
+# else
+I32 cur_val(IV iv, SV *sv)
+# endif
+{
+    SV *rv;
+
+    if (iv == 0)
+	rv = newWINrv(newSV(0), curwin);
+    else
+	rv = newBUFrv(newSV(0), curbuf);
+
+    if (SvRV(sv) != SvRV(rv))
+	// XXX: This magic variable is a bit confusing...
+	// Is currently refcounted ?
+	sv_setsv(sv, rv);
+
+    SvREFCNT_dec(rv);
+
+    return 0;
+}
+#endif /* !PROTO */
+
+struct ufuncs cw_funcs = { cur_val, 0, 0 };
+struct ufuncs cb_funcs = { cur_val, 0, 1 };
+
+/*
+ * VIM_init(): Vim-specific initialisation.
+ * Make the magical main::curwin and main::curbuf variables
+ */
+    static void
+VIM_init(void)
+{
+    static char cw[] = "main::curwin";
+    static char cb[] = "main::curbuf";
+    SV *sv;
+
+    sv = perl_get_sv(cw, TRUE);
+    sv_magic(sv, NULL, 'U', (char *)&cw_funcs, sizeof(cw_funcs));
+    SvREADONLY_on(sv);
+
+    sv = perl_get_sv(cb, TRUE);
+    sv_magic(sv, NULL, 'U', (char *)&cb_funcs, sizeof(cb_funcs));
+    SvREADONLY_on(sv);
+
+    /*
+     * Setup the Safe compartment.
+     * It shouldn't be a fatal error if the Safe module is missing.
+     * XXX: Only shares the 'Msg' routine (which has to be called
+     * like 'Msg(...)').
+     */
+    (void)perl_eval_pv( "if ( eval( 'require Safe' ) ) { $VIM::safe = Safe->new(); $VIM::safe->share_from( 'VIM', ['Msg'] ); }", G_DISCARD | G_VOID );
+
+}
+
+#ifdef DYNAMIC_PERL
+static char *e_noperl = N_("Sorry, this command is disabled: the Perl library could not be loaded.");
+#endif
+
+/*
+ * ":perl"
+ */
+    void
+ex_perl(exarg_T *eap)
+{
+    char	*err;
+    char	*script;
+    STRLEN	length;
+    SV		*sv;
+#ifdef HAVE_SANDBOX
+    SV		*safe;
+#endif
+
+    script = (char *)script_get(eap, eap->arg);
+    if (eap->skip)
+    {
+	vim_free(script);
+	return;
+    }
+
+    if (perl_interp == NULL)
+    {
+#ifdef DYNAMIC_PERL
+	if (!perl_enabled(TRUE))
+	{
+	    emsg(_(e_noperl));
+	    vim_free(script);
+	    return;
+	}
+#endif
+	perl_init();
+    }
+
+    {
+    dSP;
+    ENTER;
+    SAVETMPS;
+
+    if (script == NULL)
+	sv = newSVpv((char *)eap->arg, 0);
+    else
+    {
+	sv = newSVpv(script, 0);
+	vim_free(script);
+    }
+
+    if (sandbox || secure)
+    {
+	safe = perl_get_sv("VIM::safe", FALSE);
+# ifndef MAKE_TEST  /* avoid a warning for unreachable code */
+	if (safe == NULL || !SvTRUE(safe))
+	    emsg(_(e_perl_evaluation_forbidden_in_sandbox_without_safe_module));
+	else
+# endif
+	{
+	    PUSHMARK(SP);
+	    XPUSHs(safe);
+	    XPUSHs(sv);
+	    PUTBACK;
+	    perl_call_method("reval", G_DISCARD);
+	}
+    }
+    else
+	perl_eval_sv(sv, G_DISCARD | G_NOARGS);
+
+    SvREFCNT_dec(sv);
+
+    err = SvPV(GvSV(PL_errgv), length);
+
+    FREETMPS;
+    LEAVE;
+
+    if (!length)
+	return;
+
+    msg_split((char_u *)err, highlight_attr[HLF_E]);
+    return;
+    }
+}
+
+    static int
+replace_line(linenr_T *line, linenr_T *end)
+{
+    char *str;
+
+    if (SvOK(GvSV(PL_defgv)))
+    {
+	str = SvPV(GvSV(PL_defgv), PL_na);
+	ml_replace(*line, (char_u *)str, 1);
+	changed_bytes(*line, 0);
+    }
+    else
+    {
+	ml_delete(*line);
+	deleted_lines_mark(*line, 1L);
+	--(*end);
+	--(*line);
+    }
+    return OK;
+}
+
+static struct ref_map_S {
+    void *vim_ref;
+    SV   *perl_ref;
+    struct ref_map_S *next;
+} *ref_map = NULL;
+
+    static void
+ref_map_free(void)
+{
+    struct ref_map_S *tofree;
+    struct ref_map_S *refs = ref_map;
+
+    while (refs) {
+	tofree = refs;
+	refs = refs->next;
+	vim_free(tofree);
+    }
+    ref_map = NULL;
+}
+
+    static struct ref_map_S *
+ref_map_find_SV(SV *const sv)
+{
+    struct ref_map_S *refs = ref_map;
+    int count = 350;
+
+    while (refs) {
+	if (refs->perl_ref == sv)
+	    break;
+	refs = refs->next;
+	count--;
+    }
+
+    if (!refs && count > 0) {
+	refs = (struct ref_map_S *)alloc(sizeof(struct ref_map_S));
+	if (!refs)
+	    return NULL;
+	refs->perl_ref = sv;
+	refs->vim_ref = NULL;
+	refs->next = ref_map;
+	ref_map = refs;
+    }
+
+    return refs;
+}
+
+    static int
+perl_to_vim(SV *sv, typval_T *rettv)
+{
+    if (SvROK(sv))
+	sv = SvRV(sv);
+
+    switch (SvTYPE(sv)) {
+	case SVt_NULL:
+	    break;
+	case SVt_NV:	/* float */
+	    rettv->v_type	= VAR_FLOAT;
+	    rettv->vval.v_float = SvNV(sv);
+	    break;
+	case SVt_IV:	/* integer */
+	    if (!SvROK(sv)) { /* references should be string */
+		rettv->vval.v_number = SvIV(sv);
+		break;
+	    }
+	    /* FALLTHROUGH */
+	case SVt_PV:	/* string */
+	{
+	    size_t  len		= 0;
+	    char *  str_from	= SvPV(sv, len);
+	    char_u *str_to	= (char_u*)alloc(
+				      (unsigned)(sizeof(char_u) * (len + 1)));
+
+	    if (str_to) {
+		str_to[len] = '\0';
+
+		while (len--) {
+		    if (str_from[len] == '\0')
+			str_to[len] = '\n';
+		    else
+			str_to[len] = str_from[len];
+		}
+	    }
+
+	    rettv->v_type	    = VAR_STRING;
+	    rettv->vval.v_string    = str_to;
+	    break;
+	}
+	case SVt_PVAV:	/* list */
+	{
+	    SSize_t		size;
+	    listitem_T *	item;
+	    SV **		item2;
+	    list_T *		list;
+	    struct ref_map_S *	refs;
+
+	    if ((refs = ref_map_find_SV(sv)) == NULL)
+		return FAIL;
+
+	    if (refs->vim_ref)
+		list = (list_T *) refs->vim_ref;
+	    else
+	    {
+		if ((list = list_alloc()) == NULL)
+		    return FAIL;
+		refs->vim_ref = list;
+
+		for (size = av_len((AV*)sv); size >= 0; size--)
+		{
+		    if ((item = listitem_alloc()) == NULL)
+			break;
+
+		    item->li_tv.v_type		= VAR_NUMBER;
+		    item->li_tv.v_lock		= 0;
+		    item->li_tv.vval.v_number	= 0;
+		    list_insert(list, item, list->lv_first);
+
+		    item2 = av_fetch((AV *)sv, size, 0);
+
+		    if (item2 == NULL || *item2 == NULL ||
+				    perl_to_vim(*item2, &item->li_tv) == FAIL)
+			break;
+		}
+	    }
+
+	    rettv_list_set(rettv, list);
+	    break;
+	}
+	case SVt_PVHV:	/* dictionary */
+	{
+	    HE *		entry;
+	    I32			key_len;
+	    char *		key;
+	    dictitem_T *	item;
+	    SV *		item2;
+	    dict_T *		dict;
+	    struct ref_map_S *	refs;
+
+	    if ((refs = ref_map_find_SV(sv)) == NULL)
+		return FAIL;
+
+	    if (refs->vim_ref)
+		dict = (dict_T *) refs->vim_ref;
+	    else
+	    {
+
+		if ((dict = dict_alloc()) == NULL)
+		    return FAIL;
+		refs->vim_ref = dict;
+
+		hv_iterinit((HV *)sv);
+
+		for (entry = hv_iternext((HV *)sv); entry; entry = hv_iternext((HV *)sv))
+		{
+		    key_len = 0;
+		    key = hv_iterkey(entry, &key_len);
+
+		    if (!key || !key_len || strlen(key) < (size_t)key_len) {
+			semsg("Malformed key Dictionary '%s'", key && *key ? key : "(empty)");
+			break;
+		    }
+
+		    if ((item = dictitem_alloc((char_u *)key)) == NULL)
+			break;
+		    item->di_tv.v_type = VAR_NUMBER;
+		    item->di_tv.vval.v_number = 0;
+
+		    if (dict_add(dict, item) == FAIL) {
+			dictitem_free(item);
+			break;
+		    }
+		    item2 = hv_iterval((HV *)sv, entry);
+		    if (item2 == NULL || perl_to_vim(item2, &item->di_tv) == FAIL)
+			break;
+		}
+	    }
+
+	    rettv_dict_set(rettv, dict);
+	    break;
+	}
+	default:	/* not convertible */
+	{
+	    char *val	    = SvPV_nolen(sv);
+	    rettv->v_type   = VAR_STRING;
+	    rettv->vval.v_string = val ? vim_strsave((char_u *)val) : NULL;
+	    break;
+	}
+    }
+    return OK;
+}
+
+/*
+ * "perleval()"
+ */
+    void
+do_perleval(char_u *str, typval_T *rettv)
+{
+    char	*err = NULL;
+    STRLEN	err_len = 0;
+    SV		*sv = NULL;
+#ifdef HAVE_SANDBOX
+    SV		*safe;
+#endif
+
+    if (perl_interp == NULL)
+    {
+#ifdef DYNAMIC_PERL
+	if (!perl_enabled(TRUE))
+	{
+	    emsg(_(e_noperl));
+	    return;
+	}
+#endif
+	perl_init();
+    }
+
+    {
+	dSP;
+	ENTER;
+	SAVETMPS;
+
+	if (sandbox || secure)
+	{
+	    safe = get_sv("VIM::safe", FALSE);
+# ifndef MAKE_TEST  /* avoid a warning for unreachable code */
+	    if (safe == NULL || !SvTRUE(safe))
+		emsg(_(e_perl_evaluation_forbidden_in_sandbox_without_safe_module));
+	    else
+# endif
+	    {
+		sv = newSVpv((char *)str, 0);
+		PUSHMARK(SP);
+		XPUSHs(safe);
+		XPUSHs(sv);
+		PUTBACK;
+		call_method("reval", G_SCALAR);
+		SPAGAIN;
+		SvREFCNT_dec(sv);
+		sv = POPs;
+		PUTBACK;
+	    }
+	}
+	else
+	    sv = eval_pv((char *)str, 0);
+
+	if (sv) {
+	    perl_to_vim(sv, rettv);
+	    ref_map_free();
+	    err = SvPV(GvSV(PL_errgv), err_len);
+	}
+	FREETMPS;
+	LEAVE;
+    }
+    if (err_len)
+	msg_split((char_u *)err, highlight_attr[HLF_E]);
+}
+
+/*
+ * ":perldo".
+ */
+    void
+ex_perldo(exarg_T *eap)
+{
+    STRLEN	length;
+    SV		*sv;
+    char	*str;
+    linenr_T	i;
+    buf_T	*was_curbuf = curbuf;
+
+    if (BUFEMPTY())
+	return;
+
+    if (perl_interp == NULL)
+    {
+#ifdef DYNAMIC_PERL
+	if (!perl_enabled(TRUE))
+	{
+	    emsg(_(e_noperl));
+	    return;
+	}
+#endif
+	perl_init();
+    }
+    {
+    dSP;
+    length = strlen((char *)eap->arg);
+    sv = newSV(length + sizeof("sub VIM::perldo {") - 1 + 1);
+    sv_setpvn(sv, "sub VIM::perldo {", sizeof("sub VIM::perldo {") - 1);
+    sv_catpvn(sv, (char *)eap->arg, length);
+    sv_catpvn(sv, "}", 1);
+    perl_eval_sv(sv, G_DISCARD | G_NOARGS);
+    SvREFCNT_dec(sv);
+    str = SvPV(GvSV(PL_errgv), length);
+    if (length)
+	goto err;
+
+    if (u_save(eap->line1 - 1, eap->line2 + 1) != OK)
+	return;
+
+    ENTER;
+    SAVETMPS;
+    for (i = eap->line1; i <= eap->line2; i++)
+    {
+	/* Check the line number, the command my have deleted lines. */
+	if (i > curbuf->b_ml.ml_line_count)
+	    break;
+	sv_setpv(GvSV(PL_defgv), (char *)ml_get(i));
+	PUSHMARK(sp);
+	perl_call_pv("VIM::perldo", G_SCALAR | G_EVAL);
+	str = SvPV(GvSV(PL_errgv), length);
+	if (length || curbuf != was_curbuf)
+	    break;
+	SPAGAIN;
+	if (SvTRUEx(POPs))
+	{
+	    if (replace_line(&i, &eap->line2) != OK)
+	    {
+		PUTBACK;
+		break;
+	    }
+	}
+	PUTBACK;
+    }
+    FREETMPS;
+    LEAVE;
+    check_cursor();
+    update_screen(UPD_NOT_VALID);
+    if (!length)
+	return;
+
+err:
+    msg_split((char_u *)str, highlight_attr[HLF_E]);
+    return;
+    }
+}
+
+#if defined(PERLIO_LAYERS) && !defined(USE_SFIO)
+typedef struct {
+    struct _PerlIO base;
+    int attr;
+} PerlIOVim;
+
+    static IV
+PerlIOVim_pushed(pTHX_ PerlIO *f, const char *mode,
+		 SV *arg, PerlIO_funcs *tab)
+{
+    PerlIOVim *s = PerlIOSelf(f, PerlIOVim);
+    s->attr = 0;
+    if (arg && SvPOK(arg))
+	s->attr = syn_name2attr((char_u *)SvPV_nolen(arg));
+    return PerlIOBase_pushed(aTHX_ f, mode, (SV *)NULL, tab);
+}
+
+    static SSize_t
+PerlIOVim_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count)
+{
+    char_u *str;
+    PerlIOVim * s = PerlIOSelf(f, PerlIOVim);
+
+    str = vim_strnsave((char_u *)vbuf, count);
+    if (str == NULL)
+	return 0;
+    msg_split((char_u *)str, s->attr);
+    vim_free(str);
+
+    return (SSize_t)count;
+}
+
+static PERLIO_FUNCS_DECL(PerlIO_Vim) = {
+    sizeof(PerlIO_funcs),
+    "Vim",
+    sizeof(PerlIOVim),
+    PERLIO_K_DUMMY,	/* flags */
+    PerlIOVim_pushed,
+    NULL,		/* popped */
+    NULL,		/* open */
+    NULL,		/* binmode */
+    NULL,		/* arg */
+    NULL,		/* fileno */
+    NULL,		/* dup */
+    NULL,		/* read */
+    NULL,		/* unread */
+    PerlIOVim_write,
+    NULL,		/* seek */
+    NULL,		/* tell */
+    NULL,		/* close */
+    NULL,		/* flush */
+    NULL,		/* fill */
+    NULL,		/* eof */
+    NULL,		/* error */
+    NULL,		/* clearerr */
+    NULL,		/* setlinebuf */
+    NULL,		/* get_base */
+    NULL,		/* get_bufsiz */
+    NULL,		/* get_ptr */
+    NULL,		/* get_cnt */
+    NULL		/* set_ptrcnt */
+};
+
+/* Use Vim routine for print operator */
+    static void
+vim_IOLayer_init(void)
+{
+    PerlIO_define_layer(aTHX_ PERLIO_FUNCS_CAST(&PerlIO_Vim));
+    (void)eval_pv(   "binmode(STDOUT, ':Vim')"
+                "  && binmode(STDERR, ':Vim(ErrorMsg)');", 0);
+}
+#endif /* PERLIO_LAYERS && !USE_SFIO */
+
+#ifdef DYNAMIC_PERL
+
+// Certain functionality that we use like SvREFCNT_dec are inlined for
+// performance reasons. They reference Perl APIs like Perl_sv_free2(), which
+// would cause linking errors in dynamic builds as we don't link against Perl
+// during build time. Manually fix it here by redirecting these functions
+// towards the dynamically loaded version.
+
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 18)
+#  undef Perl_sv_free2
+void Perl_sv_free2(pTHX_ SV *const sv, const U32 refcnt)
+{
+    (*dll_Perl_sv_free2)(aTHX_ sv, refcnt);
+}
+# else
+#  undef Perl_sv_free2
+void Perl_sv_free2(pTHX_ SV* sv)
+{
+    (*dll_Perl_sv_free2)(aTHX_ sv);
+}
+# endif
+
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 14)
+#  undef Perl_sv_2bool_flags
+bool Perl_sv_2bool_flags(pTHX_ SV* sv, I32 flags)
+{
+    return (*dll_Perl_sv_2bool_flags)(aTHX_ sv, flags);
+}
+# endif
+
+# if (PERL_REVISION == 5) && (PERL_VERSION >= 28)
+#  undef Perl_mg_get
+int Perl_mg_get(pTHX_ SV* sv)
+{
+    return (*dll_Perl_mg_get)(aTHX_ sv);
+}
+# endif
+
+# undef Perl_sv_2nv_flags
+NV Perl_sv_2nv_flags(pTHX_ SV *const sv, const I32 flags)
+{
+    return (*dll_Perl_sv_2nv_flags)(aTHX_ sv, flags);
+}
+
+# ifdef PERL589_OR_LATER
+#  undef Perl_sv_2iv_flags
+IV Perl_sv_2iv_flags(pTHX_ SV *const sv, const I32 flags)
+{
+    return (*dll_Perl_sv_2iv_flags)(aTHX_ sv, flags);
+}
+# endif
+
+#endif // DYNAMIC_PERL
+
+XS(boot_VIM);
+
+    static void
+xs_init(pTHX)
+{
+    char *file = __FILE__;
+
+    /* DynaLoader is a special case */
+    newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
+    newXS("VIM::bootstrap", boot_VIM, file);
+}
+
+typedef win_T *	VIWIN;
+typedef buf_T *	VIBUF;
+
+MODULE = VIM	    PACKAGE = VIM
+
+void
+Msg(text, hl=NULL)
+    char	*text;
+    char	*hl;
+
+    PREINIT:
+    int		attr;
+
+    PPCODE:
+    if (text != NULL)
+    {
+	attr = 0;
+	if (hl != NULL)
+	    attr = syn_name2attr((char_u *)hl);
+	msg_split((char_u *)text, attr);
+    }
+
+void
+SetOption(line)
+    char *line;
+
+    PPCODE:
+    if (line != NULL)
+	do_set((char_u *)line, 0);
+    update_screen(UPD_NOT_VALID);
+
+void
+DoCommand(line)
+    char *line;
+
+    PPCODE:
+    if (line != NULL)
+	do_cmdline_cmd((char_u *)line);
+
+void
+Eval(str)
+    char *str;
+
+    PREINIT:
+	char_u *value;
+    PPCODE:
+	value = eval_to_string((char_u *)str, TRUE, FALSE);
+	if (value == NULL)
+	{
+	    XPUSHs(sv_2mortal(newSViv(0)));
+	    XPUSHs(sv_2mortal(newSVpv("", 0)));
+	}
+	else
+	{
+	    XPUSHs(sv_2mortal(newSViv(1)));
+	    XPUSHs(sv_2mortal(newSVpv((char *)value, 0)));
+	    vim_free(value);
+	}
+
+SV*
+Blob(SV* sv)
+    PREINIT:
+    STRLEN	len;
+    char	*s;
+    unsigned	i;
+    char	buf[3];
+    SV*		newsv;
+
+    CODE:
+    s = SvPVbyte(sv, len);
+    newsv = newSVpv("0z", 2);
+    for (i = 0; i < len; i++)
+    {
+	sprintf(buf, "%02X", (unsigned char)(s[i]));
+	sv_catpvn(newsv, buf, 2);
+    }
+    RETVAL = newsv;
+    OUTPUT:
+    RETVAL
+
+void
+Buffers(...)
+
+    PREINIT:
+    buf_T *vimbuf;
+    int i, b;
+
+    PPCODE:
+    if (items == 0)
+    {
+	if (GIMME_V == G_SCALAR)
+	{
+	    i = 0;
+	    FOR_ALL_BUFFERS(vimbuf)
+		++i;
+
+	    XPUSHs(sv_2mortal(newSViv(i)));
+	}
+	else
+	{
+	    FOR_ALL_BUFFERS(vimbuf)
+		XPUSHs(sv_2mortal(newBUFrv(newSV(0), vimbuf)));
+	}
+    }
+    else
+    {
+	for (i = 0; i < items; i++)
+	{
+	    SV *sv = ST(i);
+	    if (SvIOK(sv))
+		b = (int) SvIV(ST(i));
+	    else
+	    {
+		char_u *pat;
+		STRLEN len;
+
+		pat = (char_u *)SvPV(sv, len);
+		++emsg_off;
+		b = buflist_findpat(pat, pat + len, TRUE, FALSE, FALSE);
+		--emsg_off;
+	    }
+
+	    if (b >= 0)
+	    {
+		vimbuf = buflist_findnr(b);
+		if (vimbuf)
+		    XPUSHs(sv_2mortal(newBUFrv(newSV(0), vimbuf)));
+	    }
+	}
+    }
+
+void
+Windows(...)
+
+    PREINIT:
+    win_T   *vimwin;
+    int	    i, w;
+
+    PPCODE:
+    if (items == 0)
+    {
+	if (GIMME_V == G_SCALAR)
+	    XPUSHs(sv_2mortal(newSViv(win_count())));
+	else
+	{
+	    FOR_ALL_WINDOWS(vimwin)
+		XPUSHs(sv_2mortal(newWINrv(newSV(0), vimwin)));
+	}
+    }
+    else
+    {
+	for (i = 0; i < items; i++)
+	{
+	    w = (int) SvIV(ST(i));
+	    vimwin = win_find_nr(w);
+	    if (vimwin)
+		XPUSHs(sv_2mortal(newWINrv(newSV(0), vimwin)));
+	}
+    }
+
+MODULE = VIM	    PACKAGE = VIWIN
+
+void
+DESTROY(win)
+    VIWIN win
+
+    CODE:
+    if (win_valid(win))
+	win->w_perl_private = 0;
+
+SV *
+Buffer(win)
+    VIWIN win
+
+    CODE:
+    if (!win_valid(win))
+	win = curwin;
+    RETVAL = newBUFrv(newSV(0), win->w_buffer);
+    OUTPUT:
+    RETVAL
+
+void
+SetHeight(win, height)
+    VIWIN win
+    int height;
+
+    PREINIT:
+    win_T *savewin;
+
+    PPCODE:
+    if (!win_valid(win))
+	win = curwin;
+    savewin = curwin;
+    curwin = win;
+    win_setheight(height);
+    curwin = savewin;
+
+void
+Cursor(win, ...)
+    VIWIN win
+
+    PPCODE:
+    if (items == 1)
+    {
+      EXTEND(sp, 2);
+      if (!win_valid(win))
+	  win = curwin;
+      PUSHs(sv_2mortal(newSViv(win->w_cursor.lnum)));
+      PUSHs(sv_2mortal(newSViv(win->w_cursor.col)));
+    }
+    else if (items == 3)
+    {
+      int lnum, col;
+
+      if (!win_valid(win))
+	  win = curwin;
+      lnum = (int) SvIV(ST(1));
+      col = (int) SvIV(ST(2));
+      win->w_cursor.lnum = lnum;
+      win->w_cursor.col = col;
+      win->w_set_curswant = TRUE;
+      check_cursor();		    /* put cursor on an existing line */
+      update_screen(UPD_NOT_VALID);
+    }
+
+MODULE = VIM	    PACKAGE = VIBUF
+
+void
+DESTROY(vimbuf)
+    VIBUF vimbuf;
+
+    CODE:
+    if (buf_valid(vimbuf))
+	vimbuf->b_perl_private = 0;
+
+void
+Name(vimbuf)
+    VIBUF vimbuf;
+
+    PPCODE:
+    if (!buf_valid(vimbuf))
+	vimbuf = curbuf;
+    /* No file name returns an empty string */
+    if (vimbuf->b_fname == NULL)
+	XPUSHs(sv_2mortal(newSVpv("", 0)));
+    else
+	XPUSHs(sv_2mortal(newSVpv((char *)vimbuf->b_fname, 0)));
+
+void
+Number(vimbuf)
+    VIBUF vimbuf;
+
+    PPCODE:
+    if (!buf_valid(vimbuf))
+	vimbuf = curbuf;
+    XPUSHs(sv_2mortal(newSViv(vimbuf->b_fnum)));
+
+void
+Count(vimbuf)
+    VIBUF vimbuf;
+
+    PPCODE:
+    if (!buf_valid(vimbuf))
+	vimbuf = curbuf;
+    XPUSHs(sv_2mortal(newSViv(vimbuf->b_ml.ml_line_count)));
+
+void
+Get(vimbuf, ...)
+    VIBUF vimbuf;
+
+    PREINIT:
+    char_u *line;
+    int i;
+    long lnum;
+    PPCODE:
+    if (buf_valid(vimbuf))
+    {
+	for (i = 1; i < items; i++)
+	{
+	    lnum = (long) SvIV(ST(i));
+	    if (lnum > 0 && lnum <= vimbuf->b_ml.ml_line_count)
+	    {
+		line = ml_get_buf(vimbuf, lnum, FALSE);
+		XPUSHs(sv_2mortal(newSVpv((char *)line, 0)));
+	    }
+	}
+    }
+
+void
+Set(vimbuf, ...)
+    VIBUF vimbuf;
+
+    PREINIT:
+    int i;
+    long lnum;
+    char *line;
+    PPCODE:
+    if (buf_valid(vimbuf))
+    {
+	if (items < 3)
+	    croak("Usage: VIBUF::Set(vimbuf, lnum, @lines)");
+
+	lnum = (long) SvIV(ST(1));
+	for(i = 2; i < items; i++, lnum++)
+	{
+	    line = SvPV(ST(i),PL_na);
+	    if (lnum > 0 && lnum <= vimbuf->b_ml.ml_line_count && line != NULL)
+	    {
+		aco_save_T	aco;
+
+		/* Set curwin/curbuf for "vimbuf" and save some things. */
+		aucmd_prepbuf(&aco, vimbuf);
+		if (curbuf == vimbuf)
+		{
+		    /* Only when a window was found. */
+		    if (u_savesub(lnum) == OK)
+		    {
+			ml_replace(lnum, (char_u *)line, TRUE);
+			changed_bytes(lnum, 0);
+		    }
+
+		    /* restore curwin/curbuf and a few other things */
+		    aucmd_restbuf(&aco);
+		    /* Careful: autocommands may have made "vimbuf" invalid! */
+		}
+	    }
+	}
+    }
+
+void
+Delete(vimbuf, ...)
+    VIBUF vimbuf;
+
+    PREINIT:
+    long i, lnum = 0, count = 0;
+    PPCODE:
+    if (buf_valid(vimbuf))
+    {
+	if (items == 2)
+	{
+	    lnum = (long) SvIV(ST(1));
+	    count = 1;
+	}
+	else if (items == 3)
+	{
+	    lnum = (long) SvIV(ST(1));
+	    count = (long) 1 + SvIV(ST(2)) - lnum;
+	    if (count == 0)
+		count = 1;
+	    if (count < 0)
+	    {
+		lnum -= count;
+		count = -count;
+	    }
+	}
+	if (items >= 2)
+	{
+	    for (i = 0; i < count; i++)
+	    {
+		if (lnum > 0 && lnum <= vimbuf->b_ml.ml_line_count)
+		{
+		    aco_save_T	aco;
+
+		    /* set curwin/curbuf for "vimbuf" and save some things */
+		    aucmd_prepbuf(&aco, vimbuf);
+		    if (curbuf == vimbuf)
+		    {
+			/* Only when a window was found. */
+			if (u_savedel(lnum, 1) == OK)
+			{
+			    ml_delete(lnum);
+			    check_cursor();
+			    deleted_lines_mark(lnum, 1L);
+			}
+
+			/* restore curwin/curbuf and a few other things */
+			aucmd_restbuf(&aco);
+			/* Careful: autocommands may have made "vimbuf"
+			 * invalid! */
+		    }
+
+		    update_curbuf(UPD_VALID);
+		}
+	    }
+	}
+    }
+
+void
+Append(vimbuf, ...)
+    VIBUF vimbuf;
+
+    PREINIT:
+    int		i;
+    long	lnum;
+    char	*line;
+    PPCODE:
+    if (buf_valid(vimbuf))
+    {
+	if (items < 3)
+	    croak("Usage: VIBUF::Append(vimbuf, lnum, @lines)");
+
+	lnum = (long) SvIV(ST(1));
+	for (i = 2; i < items; i++, lnum++)
+	{
+	    line = SvPV(ST(i),PL_na);
+	    if (lnum >= 0 && lnum <= vimbuf->b_ml.ml_line_count && line != NULL)
+	    {
+		aco_save_T	aco;
+
+		/* set curwin/curbuf for "vimbuf" and save some things */
+		aucmd_prepbuf(&aco, vimbuf);
+		if (curbuf == vimbuf)
+		{
+		    /* Only when a window for "vimbuf" was found. */
+		    if (u_inssub(lnum + 1) == OK)
+		    {
+			ml_append(lnum, (char_u *)line, (colnr_T)0, FALSE);
+			appended_lines_mark(lnum, 1L);
+		    }
+
+		    /* restore curwin/curbuf and a few other things */
+		    aucmd_restbuf(&aco);
+		    /* Careful: autocommands may have made "vimbuf" invalid! */
+		    }
+
+		update_curbuf(UPD_VALID);
+	    }
+	}
+    }
+
+#ifdef __GNUC__
+# pragma GCC diagnostic pop
+#endif