forked from b4winckler/macvim
/
if_perl.xs
1217 lines (1093 loc) · 28.9 KB
/
if_perl.xs
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/* vi:set ts=8 sts=4 sw=4:
*
* 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 */
#include "vim.h"
/*
* 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
/*
* 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
#ifndef pTHX
# define pTHX void
# define pTHX_
#endif
#ifndef EXTERN_C
# define EXTERN_C
#endif
/* Compatibility hacks over */
static PerlInterpreter *perl_interp = NULL;
static void xs_init __ARGS((pTHX));
static void VIM_init __ARGS((void));
EXTERN_C void boot_DynaLoader __ARGS((pTHX_ CV*));
/*
* For dynamic linked perl. (Windows)
*/
#if defined(DYNAMIC_PERL) || defined(PROTO)
/*
* 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
# define Perl_get_context dll_Perl_get_context
# define Perl_croak dll_Perl_croak
# ifndef PROTO
# define Perl_croak_nocontext dll_Perl_croak_nocontext
# 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
# 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
# define Perl_stack_grow dll_Perl_stack_grow
# define Perl_set_context dll_Perl_set_context
# define Perl_sv_2bool dll_Perl_sv_2bool
# 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
# 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
# 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
#ifndef DYNAMIC_PERL /* just generating prototypes */
typedef int HANDLE;
typedef int XSINIT_t;
typedef int XSUBADDR_t;
#endif
/*
* Declare HANDLE for perl.dll and function pointers.
*/
static HANDLE hPerlLib = NULL;
static PerlInterpreter* (*perl_alloc)();
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**);
static void* (*Perl_get_context)(void);
static void (*Perl_croak)(pTHX_ const char*, ...);
static void (*Perl_croak_nocontext)(const char*, ...);
static I32 (*Perl_dowantarray)(pTHX);
static void (*Perl_free_tmps)(pTHX);
static HV* (*Perl_gv_stashpv)(pTHX_ const char*, I32);
static void (*Perl_markstack_grow)(pTHX);
static MAGIC* (*Perl_mg_find)(pTHX_ SV*, int);
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*);
static SV** (*Perl_stack_grow)(pTHX_ SV**, SV**p, int);
static SV** (*Perl_set_context)(void*);
static bool (*Perl_sv_2bool)(pTHX_ SV*);
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*, I32);
static char* (*Perl_sv_2pv_nolen)(pTHX_ SV*);
#else
static char* (*Perl_sv_2pv)(pTHX_ SV*, STRLEN*);
#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);
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*);
static GV** (*Perl_Idefgv_ptr)(register PerlInterpreter*);
static GV** (*Perl_Ierrgv_ptr)(register PerlInterpreter*);
static SV* (*Perl_Isv_yes_ptr)(register PerlInterpreter*);
static void (*boot_DynaLoader)_((pTHX_ CV*));
/*
* Table of name to function pointer of perl.
*/
#define PERL_PROC FARPROC
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},
{"Perl_get_context", (PERL_PROC*)&Perl_get_context},
{"Perl_croak", (PERL_PROC*)&Perl_croak},
{"Perl_croak_nocontext", (PERL_PROC*)&Perl_croak_nocontext},
{"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},
{"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},
{"Perl_stack_grow", (PERL_PROC*)&Perl_stack_grow},
{"Perl_set_context", (PERL_PROC*)&Perl_set_context},
{"Perl_sv_2bool", (PERL_PROC*)&Perl_sv_2bool},
{"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
#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},
{"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},
{"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},
{"boot_DynaLoader", (PERL_PROC*)&boot_DynaLoader},
{"", NULL},
};
/*
* Make all runtime-links of perl.
*
* 1. Get module handle using LoadLibraryEx.
* 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 = LoadLibraryEx(libname, NULL, 0)))
{
if (verbose)
EMSG2(_("E370: Could not load library %s"), libname);
return FAIL;
}
for (i = 0; perl_funcname_table[i].ptr; ++i)
{
if (!(*perl_funcname_table[i].ptr = GetProcAddress(hPerlLib,
perl_funcname_table[i].name)))
{
FreeLibrary(hPerlLib);
hPerlLib = NULL;
if (verbose)
EMSG2(_(e_loadfunc), 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(verbose)
int verbose;
{
return perl_runtime_link_init(DYNAMIC_PERL_DLL, verbose) == OK;
}
#endif /* DYNAMIC_PERL */
/*
* 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()
{
char *bootargs[] = { "VI", NULL };
static char *args[] = { "", "-e", "" };
perl_interp = perl_alloc();
perl_construct(perl_interp);
perl_parse(perl_interp, xs_init, 3, args, 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);
#endif
}
/*
* perl_end(): clean up after ourselves
*/
void
perl_end()
{
if (perl_interp)
{
perl_run(perl_interp);
perl_destruct(perl_interp);
perl_free(perl_interp);
perl_interp = NULL;
}
#ifdef DYNAMIC_PERL
if (hPerlLib)
{
FreeLibrary(hPerlLib);
hPerlLib = NULL;
}
#endif
}
/*
* msg_split(): send a message to the message handling routines
* split at '\n' first though.
*/
void
msg_split(s, attr)
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((char_u *)token, attr);
token = next;
}
if (*token && !got_int)
msg_attr((char_u *)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(arg, nextcmd, dolist)
char_u *arg;
char_u **nextcmd;
int dolist;
{
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(rv, ptr)
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, (IV)ptr);
}
else
SvREFCNT_inc(ptr->w_perl_private);
SvRV(rv) = ptr->w_perl_private;
SvROK_on(rv);
return sv_bless(rv, gv_stashpv("VIWIN", TRUE));
}
static SV *
newBUFrv(rv, ptr)
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, (IV)ptr);
}
else
SvREFCNT_inc(ptr->b_perl_private);
SvRV(rv) = ptr->b_perl_private;
SvROK_on(rv);
return sv_bless(rv, gv_stashpv("VIBUF", TRUE));
}
/*
* perl_win_free
* Remove all refences to the window to be destroyed
*/
void
perl_win_free(wp)
win_T *wp;
{
if (wp->w_perl_private)
sv_setiv((SV *)wp->w_perl_private, 0);
return;
}
void
perl_buf_free(bp)
buf_T *bp;
{
if (bp->b_perl_private)
sv_setiv((SV *)bp->b_perl_private, 0);
return;
}
#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);
sv_setsv(sv, 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()
{
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(eap)
exarg_T *eap;
{
char *err;
char *script;
STRLEN length;
SV *sv;
SV *safe;
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);
}
#ifdef HAVE_SANDBOX
if (sandbox)
{
if ((safe = perl_get_sv( "VIM::safe", FALSE )) == NULL || !SvTRUE(safe))
EMSG(_("E299: Perl evaluation forbidden in sandbox without the Safe module"));
else
{
PUSHMARK(SP);
XPUSHs(safe);
XPUSHs(sv);
PUTBACK;
perl_call_method("reval", G_DISCARD);
}
}
else
#endif
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(line, end)
linenr_T *line, *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, FALSE);
deleted_lines_mark(*line, 1L);
--(*end);
--(*line);
}
return OK;
}
/*
* ":perldo".
*/
void
ex_perldo(eap)
exarg_T *eap;
{
STRLEN length;
SV *sv;
char *str;
linenr_T i;
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++)
{
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)
break;
SPAGAIN;
if (SvTRUEx(POPs))
{
if (replace_line(&i, &eap->line2) != OK)
{
PUTBACK;
break;
}
}
PUTBACK;
}
FREETMPS;
LEAVE;
check_cursor();
update_screen(NOT_VALID);
if (!length)
return;
err:
msg_split((char_u *)str, highlight_attr[HLF_E]);
return;
}
}
XS(XS_VIM_Msg);
XS(XS_VIM_SetOption);
XS(XS_VIM_DoCommand);
XS(XS_VIM_Eval);
XS(XS_VIM_Buffers);
XS(XS_VIM_Windows);
XS(XS_VIWIN_DESTROY);
XS(XS_VIWIN_Buffer);
XS(XS_VIWIN_SetHeight);
XS(XS_VIWIN_Cursor);
XS(XS_VIBUF_DESTROY);
XS(XS_VIBUF_Name);
XS(XS_VIBUF_Number);
XS(XS_VIBUF_Count);
XS(XS_VIBUF_Get);
XS(XS_VIBUF_Set);
XS(XS_VIBUF_Delete);
XS(XS_VIBUF_Append);
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;
int id;
PPCODE:
if (text != NULL)
{
attr = 0;
if (hl != NULL)
{
id = syn_name2id((char_u *)hl);
if (id != 0)
attr = syn_id2attr(id);
}
msg_split((char_u *)text, attr);
}
void
SetOption(line)
char *line;
PPCODE:
if (line != NULL)
do_set((char_u *)line, 0);
update_screen(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, (char_u **)0, TRUE);
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);
}
void
Buffers(...)
PREINIT:
buf_T *vimbuf;
int i, b;
PPCODE:
if (items == 0)
{
if (GIMME == G_SCALAR)
{
i = 0;
for (vimbuf = firstbuf; vimbuf; vimbuf = vimbuf->b_next)
++i;
XPUSHs(sv_2mortal(newSViv(i)));
}
else
{
for (vimbuf = firstbuf; vimbuf; vimbuf = vimbuf->b_next)
XPUSHs(newBUFrv(newSV(0), vimbuf));
}
}
else
{
for (i = 0; i < items; i++)
{
SV *sv = ST(i);
if (SvIOK(sv))
b = SvIV(ST(i));
else
{
char_u *pat;
STRLEN len;
pat = (char_u *)SvPV(sv, len);
++emsg_off;
b = buflist_findpat(pat, pat+len, FALSE, FALSE);
--emsg_off;
}
if (b >= 0)
{
vimbuf = buflist_findnr(b);
if (vimbuf)
XPUSHs(newBUFrv(newSV(0), vimbuf));
}
}
}
void
Windows(...)
PREINIT:
win_T *vimwin;
int i, w;
PPCODE:
if (items == 0)
{
if (GIMME == G_SCALAR)
XPUSHs(sv_2mortal(newSViv(win_count())));
else
{
for (vimwin = firstwin; vimwin != NULL; vimwin = W_NEXT(vimwin))
XPUSHs(newWINrv(newSV(0), vimwin));
}
}
else
{
for (i = 0; i < items; i++)
{
w = SvIV(ST(i));
vimwin = win_find_nr(w);
if (vimwin)
XPUSHs(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)