ext/B/B.xs - metacpan.org

/*	B.xs
 *
 *	Copyright (c) 1996 Malcolm Beattie
 *
 *	You may distribute under the terms of either the GNU General Public
 *	License or the Artistic License, as specified in the README file.
 *
 */

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

#ifdef PerlIO
typedef PerlIO * InputStream;
#else
typedef FILE * InputStream;
#endif


static const char* const svclassnames[] = {
    "B::NULL",
    "B::BIND",
    "B::IV",
    "B::NV",
    "B::PV",
    "B::PVIV",
    "B::PVNV",
    "B::PVMG",
    "B::REGEXP",
    "B::GV",
    "B::AV",
    "B::HV",
    "B::CV",
    "B::IO",
};

#define MY_CXT_KEY "B::_guts" XS_VERSION

typedef struct {
    int		x_walkoptree_debug;	/* Flag for walkoptree debug hook */
    SV *	x_specialsv_list[7];
} my_cxt_t;

START_MY_CXT

#define walkoptree_debug	(MY_CXT.x_walkoptree_debug)
#define specialsv_list		(MY_CXT.x_specialsv_list)

static SV *
make_sv_object(pTHX_ SV *arg, SV *sv)
{
    const char *type = 0;
    IV iv;
    dMY_CXT;
    
    for (iv = 0; iv < sizeof(specialsv_list)/sizeof(SV*); iv++) {
	if (sv == specialsv_list[iv]) {
	    type = "B::SPECIAL";
	    break;
	}
    }
    if (!type) {
	type = svclassnames[SvTYPE(sv)];
	iv = PTR2IV(sv);
    }
    sv_setiv(newSVrv(arg, type), iv);
    return arg;
}

static SV *
make_mg_object(pTHX_ SV *arg, MAGIC *mg)
{
    sv_setiv(newSVrv(arg, "B::MAGIC"), PTR2IV(mg));
    return arg;
}

static SV *
cstring(pTHX_ SV *sv, bool perlstyle)
{
    SV *sstr = newSVpvn("", 0);

    if (!SvOK(sv))
	sv_setpvn(sstr, "0", 1);
    else if (perlstyle) {
	SV *tmpsv = sv_newmortal(); /* Temporary SV to feed sv_uni_display */
	const STRLEN len = SvCUR(sv);
	const char *s = sv_uni_display(tmpsv, sv, 8*len, UNI_DISPLAY_QQ);
	sv_setpvn(sstr,"\"",1);
	while (*s)
	{
	    if (*s == '"')
		sv_catpvn(sstr, "\\\"", 2);
	    else if (*s == '$')
		sv_catpvn(sstr, "\\$", 2);
	    else if (*s == '@')
		sv_catpvn(sstr, "\\@", 2);
	    else if (*s == '\\')
	    {
		if (strchr("nrftax\\",*(s+1)))
		    sv_catpvn(sstr, s++, 2);
		else
		    sv_catpvn(sstr, "\\\\", 2);
	    }
	    else /* should always be printable */
		sv_catpvn(sstr, s, 1);
	    ++s;
	}
	sv_catpv(sstr, "\"");
	return sstr;
    }
    else
    {
	/* XXX Optimise? */
	STRLEN len;
	const char *s = SvPV(sv, len);
	sv_catpv(sstr, "\"");
	for (; len; len--, s++)
	{
	    /* At least try a little for readability */
	    if (*s == '"')
		sv_catpv(sstr, "\\\"");
	    else if (*s == '\\')
		sv_catpv(sstr, "\\\\");
            /* trigraphs - bleagh */
            else if (!perlstyle && *s == '?' && len>=3 && s[1] == '?') {
		char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
                sprintf(escbuff, "\\%03o", '?');
                sv_catpv(sstr, escbuff);
            }
	    else if (perlstyle && *s == '$')
		sv_catpv(sstr, "\\$");
	    else if (perlstyle && *s == '@')
		sv_catpv(sstr, "\\@");
#ifdef EBCDIC
	    else if (isPRINT(*s))
#else
	    else if (*s >= ' ' && *s < 127)
#endif /* EBCDIC */
		sv_catpvn(sstr, s, 1);
	    else if (*s == '\n')
		sv_catpv(sstr, "\\n");
	    else if (*s == '\r')
		sv_catpv(sstr, "\\r");
	    else if (*s == '\t')
		sv_catpv(sstr, "\\t");
	    else if (*s == '\a')
		sv_catpv(sstr, "\\a");
	    else if (*s == '\b')
		sv_catpv(sstr, "\\b");
	    else if (*s == '\f')
		sv_catpv(sstr, "\\f");
	    else if (!perlstyle && *s == '\v')
		sv_catpv(sstr, "\\v");
	    else
	    {
		/* Don't want promotion of a signed -1 char in sprintf args */
		char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
		const unsigned char c = (unsigned char) *s;
		sprintf(escbuff, "\\%03o", c);
		sv_catpv(sstr, escbuff);
	    }
	    /* XXX Add line breaks if string is long */
	}
	sv_catpv(sstr, "\"");
    }
    return sstr;
}

static SV *
cchar(pTHX_ SV *sv)
{
    SV *sstr = newSVpvn("'", 1);
    const char *s = SvPV_nolen(sv);

    if (*s == '\'')
	sv_catpvn(sstr, "\\'", 2);
    else if (*s == '\\')
	sv_catpvn(sstr, "\\\\", 2);
#ifdef EBCDIC
    else if (isPRINT(*s))
#else
    else if (*s >= ' ' && *s < 127)
#endif /* EBCDIC */
	sv_catpvn(sstr, s, 1);
    else if (*s == '\n')
	sv_catpvn(sstr, "\\n", 2);
    else if (*s == '\r')
	sv_catpvn(sstr, "\\r", 2);
    else if (*s == '\t')
	sv_catpvn(sstr, "\\t", 2);
    else if (*s == '\a')
	sv_catpvn(sstr, "\\a", 2);
    else if (*s == '\b')
	sv_catpvn(sstr, "\\b", 2);
    else if (*s == '\f')
	sv_catpvn(sstr, "\\f", 2);
    else if (*s == '\v')
	sv_catpvn(sstr, "\\v", 2);
    else
    {
	/* no trigraph support */
	char escbuff[5]; /* to fit backslash, 3 octals + trailing \0 */
	/* Don't want promotion of a signed -1 char in sprintf args */
	unsigned char c = (unsigned char) *s;
	sprintf(escbuff, "\\%03o", c);
	sv_catpv(sstr, escbuff);
    }
    sv_catpvn(sstr, "'", 1);
    return sstr;
}

typedef SV	*B__SV;
typedef SV	*B__IV;
typedef SV	*B__PV;
typedef SV	*B__NV;
typedef SV	*B__PVMG;
typedef SV	*B__REGEXP;
typedef SV	*B__BM;
typedef SV	*B__RV;
typedef SV	*B__FM;
typedef AV	*B__AV;
typedef HV	*B__HV;
typedef CV	*B__CV;
typedef GV	*B__GV;
typedef IO	*B__IO;

typedef MAGIC	*B__MAGIC;
typedef HE      *B__HE;

MODULE = B	PACKAGE = B	PREFIX = B_

PROTOTYPES: DISABLE

BOOT:
{
    HV *stash = gv_stashpvn("B", 1, GV_ADD);
    AV *export_ok = perl_get_av("B::EXPORT_OK",TRUE);
    MY_CXT_INIT;
    specialsv_list[0] = Nullsv;
    specialsv_list[1] = &PL_sv_undef;
    specialsv_list[2] = &PL_sv_yes;
    specialsv_list[3] = &PL_sv_no;
    specialsv_list[4] = (SV *) pWARN_ALL;
    specialsv_list[5] = (SV *) pWARN_NONE;
    specialsv_list[6] = (SV *) pWARN_STD;
#include "defsubs.h"
}

#define B_main_cv()	PL_main_cv
#define B_init_av()	PL_initav
#define B_end_av()	PL_endav
#define B_check_av()	PL_checkav
#define B_unitcheck_av()	PL_unitcheckav
#define B_sub_generation()	PL_sub_generation
#define B_defstash()	PL_defstash
#define B_curstash()	PL_curstash
#define B_dowarn()	PL_dowarn
#define B_comppadlist()	(PL_main_cv ? CvPADLIST(PL_main_cv) : CvPADLIST(PL_compcv))
#define B_sv_undef()	&PL_sv_undef
#define B_sv_yes()	&PL_sv_yes
#define B_sv_no()	&PL_sv_no

B::AV
B_init_av()

B::AV
B_check_av()

B::AV
B_unitcheck_av()

B::AV
B_end_av()

B::CV
B_main_cv()

long
B_sub_generation()

B::AV
B_comppadlist()

B::SV
B_sv_undef()

B::SV
B_sv_yes()

B::SV
B_sv_no()

B::HV
B_curstash()

B::HV
B_defstash()

U8
B_dowarn()

void
B_warnhook()
    CODE:
	ST(0) = make_sv_object(aTHX_ sv_newmortal(), PL_warnhook);

void
B_diehook()
    CODE:
	ST(0) = make_sv_object(aTHX_ sv_newmortal(), PL_diehook);

MODULE = B	PACKAGE = B

#define address(sv) PTR2IV(sv)

IV
address(sv)
	SV *	sv

B::SV
svref_2object(sv)
	SV *	sv
    CODE:
	if (!SvROK(sv))
	    croak("argument is not a reference");
	RETVAL = (SV*)SvRV(sv);
    OUTPUT:
	RETVAL              

void
opnumber(name)
const char *	name
CODE:
{
 int i; 
 IV  result = -1;
 ST(0) = sv_newmortal();
 if (strncmp(name,"pp_",3) == 0)
   name += 3;
 for (i = 0; i < PL_maxo; i++)
  {
   if (strcmp(name, PL_op_name[i]) == 0)
    {
     result = i;
     break;
    }
  }
 sv_setiv(ST(0),result);
}

void
ppname(opnum)
	int	opnum
    CODE:
	ST(0) = sv_newmortal();
	if (opnum >= 0 && opnum < PL_maxo) {
	    sv_setpvn(ST(0), "pp_", 3);
	    sv_catpv(ST(0), PL_op_name[opnum]);
	}

void
hash(sv)
	SV *	sv
    CODE:
	STRLEN len;
	U32 hash = 0;
	char hexhash[19]; /* must fit "0xffffffffffffffff" plus trailing \0 */
	const char *s = SvPV(sv, len);
	PERL_HASH(hash, s, len);
	sprintf(hexhash, "0x%"UVxf, (UV)hash);
	ST(0) = sv_2mortal(newSVpv(hexhash, 0));

#define cast_I32(foo) (I32)foo
IV
cast_I32(i)
	IV	i

void
minus_c()
    CODE:
	PL_minus_c = TRUE;

void
save_BEGINs()
    CODE:
	PL_savebegin = TRUE;

SV *
cstring(sv)
	SV *	sv
    CODE:
	RETVAL = cstring(aTHX_ sv, 0);
    OUTPUT:
	RETVAL

SV *
perlstring(sv)
	SV *	sv
    CODE:
	RETVAL = cstring(aTHX_ sv, 1);
    OUTPUT:
	RETVAL

SV *
cchar(sv)
	SV *	sv
    CODE:
	RETVAL = cchar(aTHX_ sv);
    OUTPUT:
	RETVAL

MODULE = B	PACKAGE = B::SV

U32
SvTYPE(sv)
	B::SV	sv

#define object_2svref(sv)	sv
#define SVREF SV *
	
SVREF
object_2svref(sv)
	B::SV	sv

MODULE = B	PACKAGE = B::SV		PREFIX = Sv

U32
SvREFCNT(sv)
	B::SV	sv

U32
SvPOK(sv)
	B::SV	sv

U32
SvROK(sv)
	B::SV	sv

U32
SvMAGICAL(sv)
	B::SV	sv

SV*
SvLOCATION(sv)
	B::SV	sv
    CODE:
        RETVAL = SvREFCNT_inc(SvLOCATION(sv));
    OUTPUT:
        RETVAL

MODULE = B	PACKAGE = B::IV		PREFIX = Sv

IV
SvIV(sv)
	B::IV	sv

IV
SvIVX(sv)
	B::IV	sv

UV 
SvUVX(sv) 
	B::IV   sv
                      

MODULE = B	PACKAGE = B::IV

#define needs64bits(sv) ((I32)SvIVX(sv) != SvIVX(sv))

int
needs64bits(sv)
	B::IV	sv

void
packiv(sv)
	B::IV	sv
    CODE:
	if (sizeof(IV) == 8) {
	    U32 wp[2];
	    const IV iv = SvIVX(sv);
	    /*
	     * The following way of spelling 32 is to stop compilers on
	     * 32-bit architectures from moaning about the shift count
	     * being >= the width of the type. Such architectures don't
	     * reach this code anyway (unless sizeof(IV) > 8 but then
	     * everything else breaks too so I'm not fussed at the moment).
	     */
#ifdef UV_IS_QUAD
	    wp[0] = htonl(((UV)iv) >> (sizeof(UV)*4));
#else
	    wp[0] = htonl(((U32)iv) >> (sizeof(UV)*4));
#endif
	    wp[1] = htonl(iv & 0xffffffff);
	    ST(0) = sv_2mortal(newSVpvn((char *)wp, 8));
	} else {
	    U32 w = htonl((U32)SvIVX(sv));
	    ST(0) = sv_2mortal(newSVpvn((char *)&w, 4));
	}


B::SV
RV(sv)
        B::IV   sv
    CODE:
        if( SvROK(sv) ) {
            RETVAL = SvRV(sv);
        }
        else {
            croak( "argument is not SvROK" );
        }
    OUTPUT:
        RETVAL

MODULE = B	PACKAGE = B::NV		PREFIX = Sv

NV
SvNV(sv)
	B::NV	sv

NV
SvNVX(sv)
	B::NV	sv

U32
COP_SEQ_RANGE_LOW(sv)
	B::NV	sv

U32
COP_SEQ_RANGE_HIGH(sv)
	B::NV	sv

U32
PARENT_PAD_INDEX(sv)
	B::NV	sv

U32
PARENT_FAKELEX_FLAGS(sv)
	B::NV	sv

MODULE = B	PACKAGE = B::PV		PREFIX = Sv

const char*
SvPVX_const(sv)
	B::PV	sv

char*
SvPVX_mutable(sv)
	B::PV	sv

B::SV
SvRV(sv)
        B::PV   sv
    CODE:
        if( SvROK(sv) ) {
            RETVAL = SvRV(sv);
        }
        else {
            croak( "argument is not SvROK" );
        }
    OUTPUT:
        RETVAL

# This used to read 257. I think that that was buggy - should have been 258.
# (The "\0", the flags byte, and 256 for the table.  Not that anything
# anywhere calls this method.  NWC.
void
SvPVBM(sv)
	B::PV	sv
    CODE:
        ST(0) = sv_newmortal();
	sv_setpvn(ST(0), SvPVX_const(sv),
	    SvCUR(sv) + (SvVALID(sv) ? 256 + PERL_FBM_TABLE_OFFSET : 0));


STRLEN
SvLEN(sv)
	B::PV	sv

STRLEN
SvCUR(sv)
	B::PV	sv

MODULE = B	PACKAGE = B::PVMG	PREFIX = Sv

void
SvMAGIC(sv)
	B::PVMG	sv
	MAGIC *	mg = NO_INIT
    PPCODE:
	for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic)
	    XPUSHs(make_mg_object(aTHX_ sv_newmortal(), mg));

MODULE = B	PACKAGE = B::PVMG

B::HV
SvSTASH(sv)
	B::PVMG	sv

MODULE = B	PACKAGE = B::REGEXP

IV
REGEX(sv)
	B::REGEXP	sv
    CODE:
	/* FIXME - can we code this method more efficiently?  */
	RETVAL = PTR2IV(sv);
    OUTPUT:
        RETVAL

SV*
precomp(sv)
	B::REGEXP	sv
    CODE:
	RETVAL = newSVpvn( RX_PRECOMP(svTre(sv)), RX_PRELEN(svTre(sv)) );
    OUTPUT:
        RETVAL

#define MgMOREMAGIC(mg) mg->mg_moremagic
#define MgPRIVATE(mg) mg->mg_private
#define MgTYPE(mg) mg->mg_type
#define MgFLAGS(mg) mg->mg_flags
#define MgOBJ(mg) mg->mg_obj
#define MgLENGTH(mg) mg->mg_len
#define MgREGEX(mg) PTR2IV(mg->mg_obj)

MODULE = B	PACKAGE = B::MAGIC	PREFIX = Mg	

B::MAGIC
MgMOREMAGIC(mg)
	B::MAGIC	mg
     CODE:
	if( MgMOREMAGIC(mg) ) {
	    RETVAL = MgMOREMAGIC(mg);
	}
	else {
	    XSRETURN_UNDEF;
	}
     OUTPUT:
	RETVAL

U16
MgPRIVATE(mg)
	B::MAGIC	mg

char
MgTYPE(mg)
	B::MAGIC	mg

U8
MgFLAGS(mg)
	B::MAGIC	mg

B::SV
MgOBJ(mg)
	B::MAGIC	mg

IV
MgREGEX(mg)
	B::MAGIC	mg
    CODE:
        if(mg->mg_type == PERL_MAGIC_qr) {
            RETVAL = MgREGEX(mg);
        }
        else {
            croak( "REGEX is only meaningful on r-magic" );
        }
    OUTPUT:
        RETVAL

SV*
precomp(mg)
        B::MAGIC        mg
    CODE:
        if (mg->mg_type == PERL_MAGIC_qr) {
            REGEXP* rx = (REGEXP*)mg->mg_obj;
            RETVAL = Nullsv;
            if( rx )
                RETVAL = newSVpvn( RX_PRECOMP(rx), RX_PRELEN(rx) );
        }
        else {
            croak( "precomp is only meaningful on r-magic" );
        }
    OUTPUT:
        RETVAL

I32 
MgLENGTH(mg)
	B::MAGIC	mg
 
void
MgPTR(mg)
	B::MAGIC	mg
    CODE:
	ST(0) = sv_newmortal();
 	if (mg->mg_ptr){
		if (mg->mg_len >= 0){
	    		sv_setpvn(ST(0), mg->mg_ptr, mg->mg_len);
		} else if (mg->mg_len == HEf_SVKEY) {
			ST(0) = make_sv_object(aTHX_
				    sv_newmortal(), (SV*)mg->mg_ptr);
		}
	}

MODULE = B	PACKAGE = B::BM		PREFIX = Bm

I32
BmUSEFUL(sv)
	B::BM	sv

U32
BmPREVIOUS(sv)
	B::BM	sv

U8
BmRARE(sv)
	B::BM	sv

void
BmTABLE(sv)
	B::BM	sv
	STRLEN	len = NO_INIT
	const char *	str = NO_INIT
    CODE:
	str = SvPV_const(sv, len);
	/* Boyer-Moore table is just after string and its safety-margin \0 */
	ST(0) = sv_2mortal(newSVpvn(str + len + PERL_FBM_TABLE_OFFSET, 256));

MODULE = B	PACKAGE = B::GV		PREFIX = Gv

void
GvNAME(gv)
	B::GV	gv
    CODE:
	ST(0) = sv_2mortal(newSVpvn(GvNAME(gv), GvNAMELEN(gv)));

bool
is_empty(gv)
        B::GV   gv
    CODE:
        RETVAL = GvGP(gv) == Null(GP*);
    OUTPUT:
        RETVAL

bool
isGV_with_GP(gv)
        B::GV   gv
    CODE:
        RETVAL = isGV_with_GP(gv) ? TRUE : FALSE;
    OUTPUT:
        RETVAL

void*
GvGP(gv)
	B::GV	gv

B::HV
GvSTASH(gv)
	B::GV	gv

B::SV
GvSV(gv)
	B::GV	gv

B::IO
GvIO(gv)
	B::GV	gv

B::AV
GvAV(gv)
	B::GV	gv

B::HV
GvHV(gv)
	B::GV	gv

B::GV
GvEGV(gv)
	B::GV	gv

B::CV
GvCV(gv)
	B::GV	gv

U32
GvCVGEN(gv)
	B::GV	gv

MODULE = B	PACKAGE = B::GV

U32
GvREFCNT(gv)
	B::GV	gv

U8
GvFLAGS(gv)
	B::GV	gv

MODULE = B	PACKAGE = B::IO		PREFIX = Io

long
IoLINES(io)
	B::IO	io

bool
IsSTD(io,name)
	B::IO	io
	const char*	name
    PREINIT:
	PerlIO* handle = 0;
    CODE:
	if( strEQ( name, "stdin" ) ) {
	    handle = PerlIO_stdin();
	}
	else if( strEQ( name, "stdout" ) ) {
	    handle = PerlIO_stdout();
	}
	else if( strEQ( name, "stderr" ) ) {
	    handle = PerlIO_stderr();
	}
	else {
	    croak( "Invalid value '%s'", name );
	}
	RETVAL = handle == IoIFP(io);
    OUTPUT:
	RETVAL

MODULE = B	PACKAGE = B::IO

char
IoTYPE(io)
	B::IO	io

U8
IoFLAGS(io)
	B::IO	io

MODULE = B	PACKAGE = B::AV		PREFIX = Av

SSize_t
AvFILL(av)
	B::AV	av

SSize_t
AvMAX(av)
	B::AV	av

void
AvARRAY(av)
	B::AV	av
    PPCODE:
        AV* res = newAV();
        mXPUSHs((SV*)res);
        if (AvFILL(av) >= 0) {
            SV **svp = AvARRAY(av);
            I32 i;
            for (i = 0; i <= AvFILL(av); i++)
                av_push(res, SvREFCNT_inc(make_sv_object(aTHX_ sv_newmortal(), svp[i])));
        }

void
AvARRAYelt(av, idx)
	B::AV	av
	int	idx
    PPCODE:
    	if (idx >= 0 && AvFILL(av) >= 0 && idx <= AvFILL(av))
	    XPUSHs(make_sv_object(aTHX_ sv_newmortal(), (AvARRAY(av)[idx])));
	else
	    XPUSHs(make_sv_object(aTHX_ sv_newmortal(), NULL));

MODULE = B	PACKAGE = B::CV		PREFIX = Cv

U32
CvCONST(cv)
	B::CV	cv

long
CvDEPTH(cv)
	B::CV	cv

B::AV
CvPADLIST(cv)
	B::CV	cv

void
CvXSUB(cv)
	B::CV	cv
    CODE:
	ST(0) = sv_2mortal(newSViv(CvISXSUB(cv) ? PTR2IV(CvXSUB(cv)) : 0));


void
CvXSUBANY(cv)
	B::CV	cv
    CODE:
	ST(0) = CvCONST(cv) ?
	    make_sv_object(aTHX_ sv_newmortal(),(SV *)CvXSUBANY(cv).any_ptr) :
	    sv_2mortal(newSViv(CvISXSUB(cv) ? CvXSUBANY(cv).any_iv : 0));

MODULE = B    PACKAGE = B::CV

U16
CvFLAGS(cv)
      B::CV   cv

MODULE = B	PACKAGE = B::CV		PREFIX = cv_

B::SV
cv_const_sv(cv)
	B::CV	cv


MODULE = B	PACKAGE = B::HV		PREFIX = Hv

STRLEN
HvFILL(hv)
	B::HV	hv

STRLEN
HvMAX(hv)
	B::HV	hv

I32
HvKEYS(hv)
	B::HV	hv

I32
HvRITER(hv)
	B::HV	hv

char *
HvNAME(hv)
	B::HV	hv

void
HvARRAY(hv)
	B::HV	hv
    PPCODE:
	if (HvKEYS(hv) > 0) {
	    SV *sv;
	    char *key;
	    I32 len;
	    (void)hv_iterinit(hv);
	    EXTEND(sp, HvKEYS(hv) * 2);
	    while ((sv = hv_iternextsv(hv, &key, &len))) {
		mPUSHp(key, len);
		PUSHs(make_sv_object(aTHX_ sv_newmortal(), sv));
	    }
	}

MODULE = B	PACKAGE = B::HE		PREFIX = He

B::SV
HeVAL(he)
	B::HE he

U32
HeHASH(he)
	B::HE he

B::SV
HeSVKEY_force(he)
	B::HE he
	Global
`s`	Focus search bar
`?`	Bring up this help dialog
	GitHub
`g` `p`	Go to pull requests
`g` `i`	go to github issues (only if github is preferred repository)
	POD
`g` `a`	Go to author
`g` `c`	Go to changes
`g` `i`	Go to issues
`g` `d`	Go to dist
`g` `r`	Go to repository/SCM
`g` `s`	Go to source
`g` `b`	Go to file browse
	Search terms
module: (e.g. module:Plugin)
distribution: (e.g. distribution:Dancer auth)
author: (e.g. author:SONGMU Redis)
version: (e.g. version:1.00)