[perl5.git] / ext / File-Glob / Glob.xs

#define PERL_NO_GET_CONTEXT

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "bsd_glob.h"

#define MY_CXT_KEY "File::Glob::_guts" XS_VERSION

typedef struct {
    int		x_GLOB_ERROR;
    HV *	x_GLOB_ENTRIES;
    Perl_ophook_t	x_GLOB_OLD_OPHOOK;
} my_cxt_t;

START_MY_CXT

#define GLOB_ERROR	(MY_CXT.x_GLOB_ERROR)

#include "const-c.inc"

#ifdef WIN32
#define errfunc		NULL
#else
static int
errfunc(const char *foo, int bar) {
  PERL_UNUSED_ARG(foo);
  return !(bar == EACCES || bar == ENOENT || bar == ENOTDIR);
}
#endif

static void
doglob(pTHX_ const char *pattern, int flags)
{
    dSP;
    glob_t pglob;
    int i;
    int retval;
    SV *tmp;
    {
	dMY_CXT;

	/* call glob */
	memset(&pglob, 0, sizeof(glob_t));
	retval = bsd_glob(pattern, flags, errfunc, &pglob);
	GLOB_ERROR = retval;

	/* return any matches found */
	EXTEND(sp, pglob.gl_pathc);
	for (i = 0; i < pglob.gl_pathc; i++) {
	    /* printf("# bsd_glob: %s\n", pglob.gl_pathv[i]); */
	    tmp = newSVpvn_flags(pglob.gl_pathv[i], strlen(pglob.gl_pathv[i]),
				 SVs_TEMP);
	    TAINT;
	    SvTAINT(tmp);
	    PUSHs(tmp);
	}
	PUTBACK;

	bsd_globfree(&pglob);
    }
}

static void
iterate(pTHX_ bool(*globber)(pTHX_ AV *entries, SV *patsv))
{
    dSP;
    dMY_CXT;

    const char * const cxixpv = (char *)&PL_op;
    STRLEN const cxixlen = sizeof(OP *);
    AV *entries;
    U32 const gimme = GIMME_V;
    SV *patsv = POPs;
    bool on_stack = FALSE;

    if (!MY_CXT.x_GLOB_ENTRIES) MY_CXT.x_GLOB_ENTRIES = newHV();
    entries = (AV *)*(hv_fetch(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, 1));

    /* if we're just beginning, do it all first */
    if (SvTYPE(entries) != SVt_PVAV) {
	PUTBACK;
	on_stack = globber(aTHX_ entries, patsv);
	SPAGAIN;
    }

    /* chuck it all out, quick or slow */
    if (gimme == G_ARRAY) {
	if (!on_stack) {
	    EXTEND(SP, AvFILLp(entries)+1);
	    Copy(AvARRAY(entries), SP+1, AvFILLp(entries)+1, SV *);
	    SP += AvFILLp(entries)+1;
	}
	/* No G_DISCARD here!  It will free the stack items. */
	hv_delete(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, 0);
    }
    else {
	if (AvFILLp(entries) + 1) {
	    mPUSHs(av_shift(entries));
	}
	else {
	    /* return undef for EOL */
	    hv_delete(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, G_DISCARD);
	    PUSHs(&PL_sv_undef);
	}
    }
    PUTBACK;
}

/* returns true if the items are on the stack already, but only in
   list context */
static bool
csh_glob(pTHX_ AV *entries, SV *patsv)
{
	dSP;
	const char *pat;
	AV *patav = NULL;
	const char *patend;
	const char *s = NULL;
	const char *piece = NULL;
	SV *word = NULL;
	int const flags =
	    (int)SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));
	bool is_utf8;
	STRLEN len;
	U32 const gimme = GIMME_V;

	/* glob without args defaults to $_ */
	SvGETMAGIC(patsv);
	if (
	    !SvOK(patsv)
	 && (patsv = DEFSV, SvGETMAGIC(patsv), !SvOK(patsv))
	)
	     pat = "", len = 0, is_utf8 = 0;
	else pat = SvPV_nomg(patsv,len), is_utf8 = !!SvUTF8(patsv);
	patend = pat + len;

	assert(SvTYPE(entries) != SVt_PVAV);
	sv_upgrade((SV *)entries, SVt_PVAV);

        if (!IS_SAFE_SYSCALL(pat, len, "pattern", "glob"))
            return FALSE;

	/* extract patterns */
	s = pat-1;
	while (++s < patend) {
	    switch (*s) {
	    case '\'':
	    case '"' :
	      {
		bool found = FALSE;
		const char quote = *s;
		if (!word) {
		    word = newSVpvs("");
		    if (is_utf8) SvUTF8_on(word);
		}
		if (piece) sv_catpvn(word, piece, s-piece);
		piece = s+1;
		while (++s < patend)
		    if (*s == '\\') {
			s++;
			/* If the backslash is here to escape a quote,
			   obliterate it. */
			if (s < patend && *s == quote)
			    sv_catpvn(word, piece, s-piece-1), piece = s;
		    }
		    else if (*s == quote) {
			sv_catpvn(word, piece, s-piece);
			piece = NULL;
			found = TRUE;
			break;
		    }
		if (!found) { /* unmatched quote */
		    /* Give up on tokenisation and treat the whole string
		       as a single token, but with whitespace stripped. */
		    piece = pat;
		    while (isSPACE(*pat)) pat++;
		    while (isSPACE(*(patend-1))) patend--;
		    /* bsd_glob expects a trailing null, but we cannot mod-
		       ify the original */
		    if (patend < SvEND(patsv)) {
			if (word) sv_setpvn(word, pat, patend-pat);
			else
			    word = newSVpvn_flags(
				pat, patend-pat, SVf_UTF8*is_utf8
			    );
			piece = NULL;
		    }
		    else {
			if (word) SvREFCNT_dec(word), word=NULL;
			piece = pat;
			s = patend;
		    }
		    goto end_of_parsing;
		}
		break;
	      }
	    case '\\':
		if (!piece) piece = s;
		s++;
		/* If the backslash is here to escape a quote,
		   obliterate it. */
		if (s < patend && (*s == '"' || *s == '\'')) {
		    if (!word) {
			word = newSVpvn(piece,s-piece-1);
			if (is_utf8) SvUTF8_on(word);
		    }
		    else sv_catpvn(word, piece, s-piece-1);
		    piece = s;
		}
		break;
	    default:
		if (isSPACE(*s)) {
		    if (piece) {
			if (!word) {
			    word = newSVpvn(piece,s-piece);
			    if (is_utf8) SvUTF8_on(word);
			}
			else sv_catpvn(word, piece, s-piece);
		    }
		    if (!word) break;
		    if (!patav) patav = (AV *)sv_2mortal((SV *)newAV());
		    av_push(patav, word);
		    word = NULL;
		    piece = NULL;
		}
		else if (!piece) piece = s;
		break;
	    }
	}
      end_of_parsing:

	if (patav) {
	    I32 items = AvFILLp(patav) + 1;
	    SV **svp = AvARRAY(patav);
	    while (items--) {
		PUSHMARK(SP);
		PUTBACK;
		doglob(aTHX_ SvPVXx(*svp++), flags);
		SPAGAIN;
		{
		    dMARK;
		    dORIGMARK;
		    while (++MARK <= SP)
			av_push(entries, SvREFCNT_inc_simple_NN(*MARK));
		    SP = ORIGMARK;
		}
	    }
	}
	/* piece is set at this point if there is no trailing whitespace.
	   It is the beginning of the last token or quote-delimited
	   piece thereof.  word is set at this point if the last token has
	   multiple quoted pieces. */
	if (piece || word) {
	    if (word) {
		if (piece) sv_catpvn(word, piece, s-piece);
		piece = SvPVX(word);
	    }
	    PUSHMARK(SP);
	    PUTBACK;
	    doglob(aTHX_ piece, flags);
	    if (word) SvREFCNT_dec(word);
	    SPAGAIN;
	    {
		dMARK;
		dORIGMARK;
		/* short-circuit here for a fairly common case */
		if (!patav && gimme == G_ARRAY) { PUTBACK; return TRUE; }
		while (++MARK <= SP)
		    av_push(entries, SvREFCNT_inc_simple_NN(*MARK));

		SP = ORIGMARK;
	    }
	}
	PUTBACK;
	return FALSE;
}

static void
csh_glob_iter(pTHX)
{
    iterate(aTHX_ csh_glob);
}

/* wrapper around doglob that can be passed to the iterator */
static bool
doglob_iter_wrapper(pTHX_ AV *entries, SV *patsv)
{
    dSP;
    const char *pattern;
    int const flags =
	    (int)SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));

    SvGETMAGIC(patsv);
    if (
	    !SvOK(patsv)
	 && (patsv = DEFSV, SvGETMAGIC(patsv), !SvOK(patsv))
    )
	 pattern = "";
    else pattern = SvPV_nomg_nolen(patsv);

    PUSHMARK(SP);
    PUTBACK;
    doglob(aTHX_ pattern, flags);
    SPAGAIN;
    {
	dMARK;
	dORIGMARK;
	if (GIMME_V == G_ARRAY) { PUTBACK; return TRUE; }
	sv_upgrade((SV *)entries, SVt_PVAV);
	while (++MARK <= SP)
	    av_push(entries, SvREFCNT_inc_simple_NN(*MARK));
	SP = ORIGMARK;
    }
    return FALSE;
}

static void
glob_ophook(pTHX_ OP *o)
{
  if (PL_dirty) return;
  {
    dMY_CXT;
    if (MY_CXT.x_GLOB_ENTRIES
     && (o->op_type == OP_GLOB || o->op_type == OP_ENTERSUB))
	hv_delete(MY_CXT.x_GLOB_ENTRIES, (char *)&o, sizeof(OP *),
		  G_DISCARD);
    if (MY_CXT.x_GLOB_OLD_OPHOOK) MY_CXT.x_GLOB_OLD_OPHOOK(aTHX_ o);
  }
}

MODULE = File::Glob		PACKAGE = File::Glob

int
GLOB_ERROR()
    PREINIT:
	dMY_CXT;
    CODE:
	RETVAL = GLOB_ERROR;
    OUTPUT:
	RETVAL

void
bsd_glob(pattern,...)
    char *pattern
PREINIT:
    int flags = 0;
PPCODE:
    {
	/* allow for optional flags argument */
	if (items > 1) {
	    flags = (int) SvIV(ST(1));
	    /* remove unsupported flags */
	    flags &= ~(GLOB_APPEND | GLOB_DOOFFS | GLOB_ALTDIRFUNC | GLOB_MAGCHAR);
	} else {
	    flags = (int) SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));
	}
	
	PUTBACK;
	doglob(aTHX_ pattern, flags);
	SPAGAIN;
    }

PROTOTYPES: DISABLE
void
csh_glob(...)
PPCODE:
    /* For backward-compatibility with the original Perl function, we sim-
     * ply take the first argument, regardless of how many there are.
     */
    if (items) SP ++;
    else {
	XPUSHs(&PL_sv_undef);
    }
    PUTBACK;
    csh_glob_iter(aTHX);
    SPAGAIN;

void
bsd_glob_override(...)
PPCODE:
    if (items) SP ++;
    else {
	XPUSHs(&PL_sv_undef);
    }
    PUTBACK;
    iterate(aTHX_ doglob_iter_wrapper);
    SPAGAIN;

BOOT:
{
#ifndef PERL_EXTERNAL_GLOB
    /* Don't do this at home! The globhook interface is highly volatile. */
    PL_globhook = csh_glob_iter;
#endif
}

BOOT:
{
    MY_CXT_INIT;
    {
	dMY_CXT;
	MY_CXT.x_GLOB_ENTRIES = NULL;
	MY_CXT.x_GLOB_OLD_OPHOOK = PL_opfreehook;
	PL_opfreehook = glob_ophook;
    }  
}

INCLUDE: const-xs.inc
Commit	Line	Data
8e9c4baf NC	1	#define PERL_NO_GET_CONTEXT
8e9c4baf NC	2
72b16652 GS	3	#include "EXTERN.h"
	4	#include "perl.h"
	5	#include "XSUB.h"
	6
	7	#include "bsd_glob.h"
	8
df3728a2	9	#define MY_CXT_KEY "File::Glob::_guts" XS_VERSION
89ca4ac7 JH	10
	11	typedef struct {
	12	int x_GLOB_ERROR;
1bb8785a	13	HV * x_GLOB_ENTRIES;
d2f13afb	14	Perl_ophook_t x_GLOB_OLD_OPHOOK;
89ca4ac7 JH	15	} my_cxt_t;
	16
	17	START_MY_CXT
	18
	19	#define GLOB_ERROR (MY_CXT.x_GLOB_ERROR)
72b16652	20
1cb0fb50	21	#include "const-c.inc"
72b16652 GS	22
	23	#ifdef WIN32
	24	#define errfunc NULL
	25	#else
f681a178	26	static int
72b16652	27	errfunc(const char *foo, int bar) {
c33e8be1	28	PERL_UNUSED_ARG(foo);
5f18268b	29	return !(bar == EACCES \|\| bar == ENOENT \|\| bar == ENOTDIR);
72b16652 GS	30	}
	31	#endif
	32
1bb8785a FC	33	static void
	34	doglob(pTHX_ const char *pattern, int flags)
	35	{
	36	dSP;
	37	glob_t pglob;
	38	int i;
	39	int retval;
	40	SV *tmp;
	41	{
	42	dMY_CXT;
	43
	44	/* call glob */
	45	memset(&pglob, 0, sizeof(glob_t));
	46	retval = bsd_glob(pattern, flags, errfunc, &pglob);
	47	GLOB_ERROR = retval;
	48
	49	/* return any matches found */
	50	EXTEND(sp, pglob.gl_pathc);
	51	for (i = 0; i < pglob.gl_pathc; i++) {
	52	/* printf("# bsd_glob: %s\n", pglob.gl_pathv[i]); */
	53	tmp = newSVpvn_flags(pglob.gl_pathv[i], strlen(pglob.gl_pathv[i]),
	54	SVs_TEMP);
	55	TAINT;
	56	SvTAINT(tmp);
	57	PUSHs(tmp);
	58	}
	59	PUTBACK;
	60
	61	bsd_globfree(&pglob);
	62	}
	63	}
	64
1bb8785a	65	static void
1d6dcc39	66	iterate(pTHX_ bool(globber)(pTHX_ AV entries, SV *patsv))
1bb8785a FC	67	{
	68	dSP;
	69	dMY_CXT;
	70
c58b680b FC	71	const char * const cxixpv = (char *)&PL_op;
c58b680b FC	72	STRLEN const cxixlen = sizeof(OP *);
88b04955	73	AV *entries;
3ab888cf	74	U32 const gimme = GIMME_V;
1bb8785a	75	SV *patsv = POPs;
88b04955	76	bool on_stack = FALSE;
1bb8785a	77
1bb8785a	78	if (!MY_CXT.x_GLOB_ENTRIES) MY_CXT.x_GLOB_ENTRIES = newHV();
1d6dcc39	79	entries = (AV )(hv_fetch(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, 1));
1bb8785a FC	80
1bb8785a FC	81	/* if we're just beginning, do it all first */
1d6dcc39	82	if (SvTYPE(entries) != SVt_PVAV) {
88b04955	83	PUTBACK;
1d6dcc39	84	on_stack = globber(aTHX_ entries, patsv);
88b04955 FC	85	SPAGAIN;
	86	}
	87
	88	/* chuck it all out, quick or slow */
88b04955 FC	89	if (gimme == G_ARRAY) {
88b04955 FC	90	if (!on_stack) {
a6636b43	91	EXTEND(SP, AvFILLp(entries)+1);
88b04955 FC	92	Copy(AvARRAY(entries), SP+1, AvFILLp(entries)+1, SV *);
	93	SP += AvFILLp(entries)+1;
	94	}
88b04955 FC	95	/* No G_DISCARD here! It will free the stack items. */
	96	hv_delete(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, 0);
	97	}
	98	else {
	99	if (AvFILLp(entries) + 1) {
88b04955 FC	100	mPUSHs(av_shift(entries));
	101	}
	102	else {
	103	/* return undef for EOL */
88b04955 FC	104	hv_delete(MY_CXT.x_GLOB_ENTRIES, cxixpv, cxixlen, G_DISCARD);
	105	PUSHs(&PL_sv_undef);
	106	}
	107	}
	108	PUTBACK;
	109	}
	110
7a26772a FC	111	/* returns true if the items are on the stack already, but only in
7a26772a FC	112	list context */
88b04955	113	static bool
1d6dcc39	114	csh_glob(pTHX_ AV entries, SV patsv)
88b04955 FC	115	{
88b04955 FC	116	dSP;
1bb8785a FC	117	const char *pat;
	118	AV *patav = NULL;
	119	const char *patend;
88b04955	120	const char *s = NULL;
1bb8785a FC	121	const char *piece = NULL;
	122	SV *word = NULL;
	123	int const flags =
	124	(int)SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));
	125	bool is_utf8;
88b04955 FC	126	STRLEN len;
88b04955 FC	127	U32 const gimme = GIMME_V;
1bb8785a FC	128
	129	/* glob without args defaults to $_ */
	130	SvGETMAGIC(patsv);
	131	if (
	132	!SvOK(patsv)
	133	&& (patsv = DEFSV, SvGETMAGIC(patsv), !SvOK(patsv))
	134	)
	135	pat = "", len = 0, is_utf8 = 0;
	136	else pat = SvPV_nomg(patsv,len), is_utf8 = !!SvUTF8(patsv);
	137	patend = pat + len;
	138
41188aa0 TC	139	assert(SvTYPE(entries) != SVt_PVAV);
	140	sv_upgrade((SV *)entries, SVt_PVAV);
	141
	142	if (!IS_SAFE_SYSCALL(pat, len, "pattern", "glob"))
	143	return FALSE;
	144
1bb8785a	145	/* extract patterns */
1bb8785a FC	146	s = pat-1;
	147	while (++s < patend) {
	148	switch (*s) {
	149	case '\'':
	150	case '"' :
	151	{
	152	bool found = FALSE;
e1621fc9	153	const char quote = *s;
1bb8785a FC	154	if (!word) {
	155	word = newSVpvs("");
	156	if (is_utf8) SvUTF8_on(word);
	157	}
	158	if (piece) sv_catpvn(word, piece, s-piece);
	159	piece = s+1;
f89f9e93	160	while (++s < patend)
e1621fc9 FC	161	if (*s == '\\') {
	162	s++;
	163	/* If the backslash is here to escape a quote,
	164	obliterate it. */
	165	if (s < patend && *s == quote)
	166	sv_catpvn(word, piece, s-piece-1), piece = s;
	167	}
	168	else if (*s == quote) {
1bb8785a FC	169	sv_catpvn(word, piece, s-piece);
	170	piece = NULL;
	171	found = TRUE;
	172	break;
	173	}
	174	if (!found) { /* unmatched quote */
	175	/* Give up on tokenisation and treat the whole string
	176	as a single token, but with whitespace stripped. */
	177	piece = pat;
	178	while (isSPACE(*pat)) pat++;
	179	while (isSPACE(*(patend-1))) patend--;
	180	/* bsd_glob expects a trailing null, but we cannot mod-
	181	ify the original */
	182	if (patend < SvEND(patsv)) {
	183	if (word) sv_setpvn(word, pat, patend-pat);
	184	else
	185	word = newSVpvn_flags(
	186	pat, patend-pat, SVf_UTF8*is_utf8
	187	);
	188	piece = NULL;
	189	}
	190	else {
	191	if (word) SvREFCNT_dec(word), word=NULL;
	192	piece = pat;
	193	s = patend;
	194	}
	195	goto end_of_parsing;
	196	}
	197	break;
	198	}
e1621fc9 FC	199	case '\\':
	200	if (!piece) piece = s;
	201	s++;
	202	/* If the backslash is here to escape a quote,
	203	obliterate it. */
	204	if (s < patend && (s == '"' \|\| s == '\'')) {
	205	if (!word) {
	206	word = newSVpvn(piece,s-piece-1);
	207	if (is_utf8) SvUTF8_on(word);
	208	}
	209	else sv_catpvn(word, piece, s-piece-1);
	210	piece = s;
	211	}
	212	break;
1bb8785a FC	213	default:
	214	if (isSPACE(*s)) {
	215	if (piece) {
	216	if (!word) {
	217	word = newSVpvn(piece,s-piece);
	218	if (is_utf8) SvUTF8_on(word);
	219	}
	220	else sv_catpvn(word, piece, s-piece);
	221	}
	222	if (!word) break;
	223	if (!patav) patav = (AV )sv_2mortal((SV )newAV());
	224	av_push(patav, word);
	225	word = NULL;
	226	piece = NULL;
	227	}
	228	else if (!piece) piece = s;
	229	break;
	230	}
	231	}
	232	end_of_parsing:
	233
1bb8785a FC	234	if (patav) {
	235	I32 items = AvFILLp(patav) + 1;
	236	SV **svp = AvARRAY(patav);
	237	while (items--) {
	238	PUSHMARK(SP);
	239	PUTBACK;
	240	doglob(aTHX_ SvPVXx(*svp++), flags);
	241	SPAGAIN;
	242	{
	243	dMARK;
	244	dORIGMARK;
	245	while (++MARK <= SP)
	246	av_push(entries, SvREFCNT_inc_simple_NN(*MARK));
	247	SP = ORIGMARK;
	248	}
	249	}
	250	}
	251	/* piece is set at this point if there is no trailing whitespace.
	252	It is the beginning of the last token or quote-delimited
	253	piece thereof. word is set at this point if the last token has
	254	multiple quoted pieces. */
	255	if (piece \|\| word) {
	256	if (word) {
	257	if (piece) sv_catpvn(word, piece, s-piece);
	258	piece = SvPVX(word);
	259	}
	260	PUSHMARK(SP);
	261	PUTBACK;
	262	doglob(aTHX_ piece, flags);
	263	if (word) SvREFCNT_dec(word);
	264	SPAGAIN;
	265	{
	266	dMARK;
	267	dORIGMARK;
1bb8785a	268	/* short-circuit here for a fairly common case */
88b04955	269	if (!patav && gimme == G_ARRAY) { PUTBACK; return TRUE; }
c0d74586 FC	270	while (++MARK <= SP)
c0d74586 FC	271	av_push(entries, SvREFCNT_inc_simple_NN(*MARK));
1bb8785a FC	272
	273	SP = ORIGMARK;
	274	}
	275	}
88b04955 FC	276	PUTBACK;
	277	return FALSE;
	278	}
1bb8785a	279
88b04955 FC	280	static void
	281	csh_glob_iter(pTHX)
	282	{
	283	iterate(aTHX_ csh_glob);
1bb8785a FC	284	}
1bb8785a FC	285
f4cbf990 FC	286	/* wrapper around doglob that can be passed to the iterator */
f4cbf990 FC	287	static bool
1d6dcc39	288	doglob_iter_wrapper(pTHX_ AV entries, SV patsv)
f4cbf990 FC	289	{
	290	dSP;
	291	const char *pattern;
	292	int const flags =
	293	(int)SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));
f4cbf990 FC	294
	295	SvGETMAGIC(patsv);
	296	if (
	297	!SvOK(patsv)
	298	&& (patsv = DEFSV, SvGETMAGIC(patsv), !SvOK(patsv))
	299	)
	300	pattern = "";
	301	else pattern = SvPV_nomg_nolen(patsv);
	302
	303	PUSHMARK(SP);
	304	PUTBACK;
	305	doglob(aTHX_ pattern, flags);
	306	SPAGAIN;
	307	{
	308	dMARK;
	309	dORIGMARK;
	310	if (GIMME_V == G_ARRAY) { PUTBACK; return TRUE; }
f4cbf990 FC	311	sv_upgrade((SV *)entries, SVt_PVAV);
	312	while (++MARK <= SP)
	313	av_push(entries, SvREFCNT_inc_simple_NN(*MARK));
	314	SP = ORIGMARK;
	315	}
	316	return FALSE;
	317	}
	318
11ddfebc FC	319	static void
	320	glob_ophook(pTHX_ OP *o)
	321	{
b8bafbdc FC	322	if (PL_dirty) return;
b8bafbdc FC	323	{
11ddfebc FC	324	dMY_CXT;
	325	if (MY_CXT.x_GLOB_ENTRIES
	326	&& (o->op_type == OP_GLOB \|\| o->op_type == OP_ENTERSUB))
	327	hv_delete(MY_CXT.x_GLOB_ENTRIES, (char )&o, sizeof(OP ),
	328	G_DISCARD);
d2f13afb	329	if (MY_CXT.x_GLOB_OLD_OPHOOK) MY_CXT.x_GLOB_OLD_OPHOOK(aTHX_ o);
b8bafbdc	330	}
11ddfebc FC	331	}
11ddfebc FC	332
72b16652 GS	333	MODULE = File::Glob PACKAGE = File::Glob
72b16652 GS	334
b84cd0b1 NC	335	int
	336	GLOB_ERROR()
	337	PREINIT:
	338	dMY_CXT;
	339	CODE:
	340	RETVAL = GLOB_ERROR;
	341	OUTPUT:
	342	RETVAL
	343
72b16652	344	void
960ddb65	345	bsd_glob(pattern,...)
72b16652	346	char *pattern
72b16652	347	PREINIT:
72b16652	348	int flags = 0;
72b16652 GS	349	PPCODE:
	350	{
	351	/* allow for optional flags argument */
	352	if (items > 1) {
	353	flags = (int) SvIV(ST(1));
3c97495f CB	354	/* remove unsupported flags */
3c97495f CB	355	flags &= ~(GLOB_APPEND \| GLOB_DOOFFS \| GLOB_ALTDIRFUNC \| GLOB_MAGCHAR);
960ddb65	356	} else {
28cd8e1d	357	flags = (int) SvIV(get_sv("File::Glob::DEFAULT_FLAGS", GV_ADD));
72b16652	358	}
1bb8785a FC	359
	360	PUTBACK;
	361	doglob(aTHX_ pattern, flags);
	362	SPAGAIN;
	363	}
72b16652	364
1bb8785a FC	365	PROTOTYPES: DISABLE
	366	void
	367	csh_glob(...)
	368	PPCODE:
	369	/* For backward-compatibility with the original Perl function, we sim-
f01818e2	370	* ply take the first argument, regardless of how many there are.
1bb8785a	371	*/
f01818e2	372	if (items) SP ++;
1bb8785a	373	else {
1bb8785a	374	XPUSHs(&PL_sv_undef);
72b16652	375	}
1bb8785a	376	PUTBACK;
88b04955	377	csh_glob_iter(aTHX);
1bb8785a	378	SPAGAIN;
72b16652	379
f4cbf990 FC	380	void
	381	bsd_glob_override(...)
	382	PPCODE:
f01818e2	383	if (items) SP ++;
f4cbf990	384	else {
f4cbf990	385	XPUSHs(&PL_sv_undef);
f4cbf990 FC	386	}
	387	PUTBACK;
	388	iterate(aTHX_ doglob_iter_wrapper);
	389	SPAGAIN;
	390
28cd8e1d NC	391	BOOT:
28cd8e1d NC	392	{
d67594ff	393	#ifndef PERL_EXTERNAL_GLOB
e1fa07e3	394	/* Don't do this at home! The globhook interface is highly volatile. */
88b04955	395	PL_globhook = csh_glob_iter;
d67594ff	396	#endif
bcd258b8	397	}
28cd8e1d	398
bcd258b8 NC	399	BOOT:
bcd258b8 NC	400	{
28cd8e1d	401	MY_CXT_INIT;
1bb8785a FC	402	{
1bb8785a FC	403	dMY_CXT;
6a606603	404	MY_CXT.x_GLOB_ENTRIES = NULL;
d2f13afb FC	405	MY_CXT.x_GLOB_OLD_OPHOOK = PL_opfreehook;
d2f13afb FC	406	PL_opfreehook = glob_ophook;
1bb8785a	407	}
28cd8e1d NC	408	}
28cd8e1d NC	409
1cb0fb50	410	INCLUDE: const-xs.inc