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LineBreak.xs
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LineBreak.xs
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/*
* LineBreak.xs - Perl XS glue for Sombok package.
*
* Copyright (C) 2009-2013 Hatuka*nezumi - IKEDA Soji <hatuka(at)nezumi.nu>.
*
* This file is part of the Unicode::LineBreak package. This program is
* free software; you can redistribute it and/or modify it under the same
* terms as Perl itself.
*
* $Id$
*/
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#define NEED_newRV_noinc
#define NEED_sv_2pv_flags
#define NEED_newRV_noinc_GLOBAL
#define NEED_sv_2pv_flags_GLOBAL
#define NEED_sv_2pv_nolen
#include "ppport.h"
#include "sombok.h"
/* for Win32 with Visual Studio (MSVC) */
#ifdef _MSC_VER
# ifndef snprintf
# define snprintf _snprintf
# endif /* snprintf */
# define strcasecmp _stricmp
#endif /* _MSC_VER */
/* Type synonyms for typemap. */
typedef IV swapspec_t;
typedef gcstring_t *generic_string;
/***
*** Data conversion.
***/
/*
* Create Unicode string from Perl utf8-flagged string.
*/
static
unistr_t *SVtounistr(unistr_t *buf, SV *str)
{
U8 *utf8, *utf8ptr;
STRLEN utf8len, unilen, len;
unichar_t *uniptr;
if (buf == NULL) {
if ((buf = malloc(sizeof(unistr_t))) == NULL)
croak("SVtounistr: %s", strerror(errno));
} else if (buf->str)
free(buf->str);
buf->str = NULL;
buf->len = 0;
if (SvOK(str))
utf8 = (U8 *)SvPV(str, utf8len);
else
return buf;
if (utf8len <= 0)
return buf;
unilen = utf8_length(utf8, utf8 + utf8len);
if ((buf->str = (unichar_t *)malloc(sizeof(unichar_t) * unilen)) == NULL)
croak("SVtounistr: %s", strerror(errno));
utf8ptr = utf8;
uniptr = buf->str;
while (utf8ptr < utf8 + utf8len) {
#if PERL_VERSION >= 20 || (PERL_VERSION == 19 && PERL_SUBVERSION >= 4)
*uniptr = (unichar_t) NATIVE_TO_UNI(
utf8_to_uvchr_buf(utf8ptr, utf8 + utf8len, &len));
#elif PERL_VERSION >= 16 || (PERL_VERSION == 15 && PERL_SUBVERSION >= 9)
*uniptr = (unichar_t) utf8_to_uvuni_buf(utf8ptr, utf8 + utf8len,
&len);
#else
*uniptr = (unichar_t) utf8n_to_uvuni(utf8ptr,
utf8 + utf8len - utf8ptr, &len,
ckWARN(WARN_UTF8) ? 0 :
UTF8_ALLOW_ANY);
#endif
if (len < 0) {
free(buf->str);
buf->str = NULL;
buf->len = 0;
croak("SVtounistr: Not well-formed UTF-8");
}
if (len == 0) {
free(buf->str);
buf->str = NULL;
buf->len = 0;
croak("SVtounistr: Internal error");
}
utf8ptr += len;
uniptr++;
}
buf->len = unilen;
return buf;
}
/*
* Create Unicode string from Perl string NOT utf8-flagged.
*/
static
unistr_t *SVupgradetounistr(unistr_t *buf, SV *str)
{
char *s;
size_t len, i;
if (buf == NULL) {
if ((buf = malloc(sizeof(unistr_t))) == NULL)
croak("SVupgradetounistr: %s", strerror(errno));
} else if (buf->str)
free(buf->str);
buf->str = NULL;
buf->len = 0;
if (SvOK(str))
s = SvPV(str, len);
else
return buf;
if (len == 0)
return buf;
if ((buf->str = malloc(sizeof(unichar_t) * len)) == NULL)
croak("SVupgradetounistr: %s", strerror(errno));
for (i = 0; i < len; i++)
buf->str[i] = (unichar_t)(unsigned char)s[i];
buf->len = len;
return buf;
}
/*
* Create Perl utf8-flagged string from Unicode string.
*/
static
SV *unistrtoSV(unistr_t *unistr, size_t uniidx, size_t unilen)
{
U8 *buf = NULL, *newbuf;
STRLEN utf8len;
unichar_t *uniptr;
SV *utf8;
if (unistr == NULL || unistr->str == NULL || unilen == 0) {
utf8 = newSVpvn("", 0);
SvUTF8_on(utf8);
return utf8;
}
utf8len = 0;
uniptr = unistr->str + uniidx;
while (uniptr < unistr->str + uniidx + unilen &&
uniptr < unistr->str + unistr->len) {
if ((newbuf = realloc(buf,
sizeof(U8) * (utf8len + UTF8_MAXLEN + 1)))
== NULL) {
free(buf);
croak("unistrtoSV: %s", strerror(errno));
}
buf = newbuf;
#if PERL_VERSION >= 20 || (PERL_VERSION == 19 && PERL_SUBVERSION >= 4)
utf8len = uvchr_to_utf8(buf + utf8len, UNI_TO_NATIVE(*uniptr)) - buf;
#else
utf8len = uvuni_to_utf8(buf + utf8len, *uniptr) - buf;
#endif
uniptr++;
}
utf8 = newSVpvn((char *)(void *)buf, utf8len);
SvUTF8_on(utf8);
free(buf);
return utf8;
}
/*
* Convert Perl object to C object
*/
#define PerltoC(type, arg) \
(INT2PTR(type, SvIV((SV *)SvRV(arg))))
/*
* Create Perl object from C object
*/
# define setCtoPerl(arg, klass, var) \
STMT_START { \
sv_setref_iv(arg, klass, (IV)(var)); \
SvREADONLY_on(arg); \
} STMT_END
static
SV *CtoPerl(char *klass, void *obj)
{
SV *sv;
sv = newSViv(0);
setCtoPerl(sv, klass, obj);
return sv;
}
/*
* Convert Perl utf8-flagged string (GCString) to grapheme cluster string.
*/
static
gcstring_t *SVtogcstring(SV *sv, linebreak_t *lbobj)
{
unistr_t unistr = {NULL, 0};
if (!sv_isobject(sv)) {
SVtounistr(&unistr, sv);
return gcstring_new(&unistr, lbobj);
} else if (sv_derived_from(sv, "Unicode::GCString"))
return PerltoC(gcstring_t *, sv);
else
croak("Unknown object %s", HvNAME(SvSTASH(SvRV(sv))));
}
#if 0
/*
* Convert Perl LineBreak object to C linebreak object.
*/
static
linebreak_t *SVtolinebreak(SV *sv)
{
if (!sv_isobject(sv))
croak("Not object");
else if (sv_derived_from(sv, "Unicode::LineBreak"))
return PerltoC(linebreak_t *, sv);
else
croak("Unknown object %s", HvNAME(SvSTASH(SvRV(sv))));
}
#endif /* 0 */
/*
* Convert Perl SV to boolean (n.b. string "YES" means true).
*/
static
int SVtoboolean(SV *sv)
{
char *str;
if (!sv || !SvOK(sv))
return 0;
if (SvPOK(sv))
return strcasecmp((str = SvPV_nolen(sv)), "YES") == 0 ||
atof(str) != 0.0;
return SvNV(sv) != 0.0;
}
/***
*** Other utilities
***/
/*
* Do regex match once then returns offset and length.
*/
void do_pregexec_once(REGEXP *rx, unistr_t *str)
{
SV *screamer;
char *str_arg, *str_beg, *str_end;
size_t offs_beg, offs_end;
screamer = unistrtoSV(str, 0, str->len);
SvREADONLY_on(screamer);
str_beg = str_arg = SvPVX(screamer);
str_end = SvEND(screamer);
if (pregexec(rx, str_arg, str_end, str_beg, 0, screamer, 1)) {
#if PERL_VERSION >= 11
offs_beg = ((regexp *)SvANY(rx))->offs[0].start;
offs_end = ((regexp *)SvANY(rx))->offs[0].end;
#elif ((PERL_VERSION == 10) || (PERL_VERSION == 9 && PERL_SUBVERSION >= 5))
offs_beg = rx->offs[0].start;
offs_end = rx->offs[0].end;
#else /* PERL_VERSION */
offs_beg = rx->startp[0];
offs_end = rx->endp[0];
#endif
str->str += utf8_length((U8 *)str_beg, (U8 *)(str_beg + offs_beg));
str->len = utf8_length((U8 *)(str_beg + offs_beg),
(U8 *)(str_beg + offs_end));
} else
str->str = NULL;
SvREFCNT_dec(screamer);
}
/***
*** Callbacks for Sombok library.
***/
/*
* Increment/decrement reference count
*/
void ref_func(void *sv, int datatype, int d)
{
if (sv == NULL)
return;
if (0 < d)
SvREFCNT_inc((SV *)sv);
else if (d < 0)
SvREFCNT_dec((SV *)sv);
}
/*
* Call preprocessing function
*/
static
gcstring_t *prep_func(linebreak_t *lbobj, void *dataref, unistr_t *str,
unistr_t *text)
{
AV *data;
SV *sv, **pp, *func = NULL;
REGEXP *rx = NULL;
size_t count, i, j;
gcstring_t *gcstr, *ret;
if (dataref == NULL ||
(data = (AV *)SvRV((SV *)dataref)) == NULL)
return (lbobj->errnum = EINVAL), NULL;
/* Pass I */
if (text != NULL) {
if ((pp = av_fetch(data, 0, 0)) == NULL)
return (lbobj->errnum = EINVAL), NULL;
#if ((PERL_VERSION >= 10) || (PERL_VERSION >= 9 && PERL_SUBVERSION >= 5))
if (SvRXOK(*pp))
rx = SvRX(*pp);
#else /* PERL_VERSION */
if (SvROK(*pp) && SvMAGICAL(sv = SvRV(*pp))) {
MAGIC *mg;
if ((mg = mg_find(sv, PERL_MAGIC_qr)) != NULL)
rx = (REGEXP *)mg->mg_obj;
}
#endif /* PERL_VERSION */
if (rx == NULL)
return (lbobj->errnum = EINVAL), NULL;
do_pregexec_once(rx, str);
return NULL;
}
/* Pass II */
if ((pp = av_fetch(data, 1, 0)) == NULL)
func = NULL;
else if (SvOK(*pp))
func = *pp;
else
func = NULL;
if (func == NULL) {
if ((ret = gcstring_newcopy(str, lbobj)) == NULL)
return (lbobj->errnum = errno ? errno : ENOMEM), NULL;
} else {
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
linebreak_incref(lbobj); /* mortal but should not be destroyed.*/
XPUSHs(sv_2mortal(CtoPerl("Unicode::LineBreak", lbobj)));
XPUSHs(sv_2mortal(unistrtoSV(str, 0, str->len)));
PUTBACK;
count = call_sv(func, G_ARRAY | G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV)) {
if (!lbobj->errnum)
lbobj->errnum = LINEBREAK_EEXTN;
return NULL;
}
if ((ret = gcstring_new(NULL, lbobj)) == NULL)
return (lbobj->errnum = errno ? errno : ENOMEM), NULL;
for (i = 0; i < count; i++) {
sv = POPs;
if (!SvOK(sv))
continue;
gcstr = SVtogcstring(sv, lbobj);
for (j = 0; j < gcstr->gclen; j++) {
if (gcstr->gcstr[j].flag &
(LINEBREAK_FLAG_ALLOW_BEFORE |
LINEBREAK_FLAG_PROHIBIT_BEFORE))
continue;
if (i < count - 1 && j == 0)
gcstr->gcstr[j].flag |= LINEBREAK_FLAG_ALLOW_BEFORE;
else if (0 < j)
gcstr->gcstr[j].flag |= LINEBREAK_FLAG_PROHIBIT_BEFORE;
}
gcstring_replace(ret, 0, 0, gcstr);
if (!sv_isobject(sv))
gcstring_destroy(gcstr);
}
PUTBACK;
FREETMPS;
LEAVE;
}
return ret;
}
/*
* Call format function
*/
static
char *linebreak_states[] = {
NULL, "sot", "sop", "sol", "", "eol", "eop", "eot", NULL
};
static
gcstring_t *format_func(linebreak_t *lbobj, linebreak_state_t action,
gcstring_t *str)
{
SV *sv;
char *actionstr;
int count;
gcstring_t *ret;
dSP;
if (action <= LINEBREAK_STATE_NONE || LINEBREAK_STATE_MAX <= action)
return NULL;
actionstr = linebreak_states[(size_t)action];
ENTER;
SAVETMPS;
PUSHMARK(SP);
linebreak_incref(lbobj); /* mortal but should not be destroyed. */
XPUSHs(sv_2mortal(CtoPerl("Unicode::LineBreak", lbobj)));
XPUSHs(sv_2mortal(newSVpv(actionstr, 0)));
XPUSHs(sv_2mortal(CtoPerl("Unicode::GCString", gcstring_copy(str))));
PUTBACK;
count = call_sv(lbobj->format_data, G_SCALAR | G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV)) {
if (!lbobj->errnum)
lbobj->errnum = LINEBREAK_EEXTN;
POPs;
return NULL;
} else if (count != 1)
croak("format_func: internal error");
else
sv = POPs;
if (!SvOK(sv))
ret = NULL;
else
ret = SVtogcstring(sv, lbobj);
if (sv_isobject(sv))
ret = gcstring_copy(ret);
PUTBACK;
FREETMPS;
LEAVE;
return ret;
}
/*
* Call sizing function
*/
static
double sizing_func(linebreak_t *lbobj, double len,
gcstring_t *pre, gcstring_t *spc, gcstring_t *str)
{
int count;
double ret;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
linebreak_incref(lbobj); /* mortal but should not be destroyed. */
XPUSHs(sv_2mortal(CtoPerl("Unicode::LineBreak", lbobj)));
XPUSHs(sv_2mortal(newSVnv(len)));
XPUSHs(sv_2mortal(CtoPerl("Unicode::GCString", gcstring_copy(pre))));
XPUSHs(sv_2mortal(CtoPerl("Unicode::GCString", gcstring_copy(spc))));
XPUSHs(sv_2mortal(CtoPerl("Unicode::GCString", gcstring_copy(str))));
PUTBACK;
count = call_sv(lbobj->sizing_data, G_SCALAR | G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV)) {
if (!lbobj->errnum)
lbobj->errnum = LINEBREAK_EEXTN;
POPs;
return -1;
} else if (count != 1)
croak("sizing_func: internal error");
else
ret = POPn;
PUTBACK;
FREETMPS;
LEAVE;
return ret;
}
/*
* Call urgent breaking function
*/
static
gcstring_t *urgent_func(linebreak_t *lbobj, gcstring_t *str)
{
SV *sv;
int count;
size_t i;
gcstring_t *gcstr, *ret;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
linebreak_incref(lbobj); /* mortal but should not be destroyed. */
XPUSHs(sv_2mortal(CtoPerl("Unicode::LineBreak", lbobj)));
XPUSHs(sv_2mortal(CtoPerl("Unicode::GCString", gcstring_copy(str))));
PUTBACK;
count = call_sv(lbobj->urgent_data, G_ARRAY | G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV)) {
if (!lbobj->errnum)
lbobj->errnum = LINEBREAK_EEXTN;
return NULL;
} if (count == 0)
return NULL;
ret = gcstring_new(NULL, lbobj);
for (i = count; i; i--) {
sv = POPs;
if (SvOK(sv)) {
gcstr = SVtogcstring(sv, lbobj);
if (gcstr->gclen)
gcstr->gcstr[0].flag = LINEBREAK_FLAG_ALLOW_BEFORE;
gcstring_replace(ret, 0, 0, gcstr);
if (!sv_isobject(sv))
gcstring_destroy(gcstr);
}
}
PUTBACK;
FREETMPS;
LEAVE;
return ret;
}
MODULE = Unicode::LineBreak PACKAGE = Unicode::LineBreak
void
EAWidths()
INIT:
char **p;
PPCODE:
for (p = (char **)linebreak_propvals_EA; *p != NULL; p++)
XPUSHs(sv_2mortal(newSVpv(*p, 0)));
void
LBClasses()
INIT:
char **p;
PPCODE:
for (p = (char **)linebreak_propvals_LB; *p != NULL; p++)
XPUSHs(sv_2mortal(newSVpv(*p, 0)));
linebreak_t *
_new(klass)
char *klass;
PROTOTYPE: $
CODE:
if ((RETVAL = linebreak_new(ref_func)) == NULL)
croak("%s->_new: %s", klass, strerror(errno));
linebreak_set_stash(RETVAL, newRV_noinc((SV *)newHV()));
SvREFCNT_dec(RETVAL->stash); /* fixup */
OUTPUT:
RETVAL
linebreak_t *
copy(self)
linebreak_t *self;
PROTOTYPE: $
CODE:
RETVAL = linebreak_copy(self);
OUTPUT:
RETVAL
void
DESTROY(self)
linebreak_t *self;
PROTOTYPE: $
CODE:
linebreak_destroy(self);
SV *
_config(self, ...)
linebreak_t *self;
PREINIT:
size_t i;
char *key;
void *func;
SV *val;
char *opt;
CODE:
RETVAL = NULL;
if (items < 2)
croak("_config: Too few arguments");
else if (items < 3) {
key = (char *)SvPV_nolen(ST(1));
if (strcasecmp(key, "BreakIndent") == 0)
RETVAL = newSVuv(self->options &
LINEBREAK_OPTION_BREAK_INDENT);
else if (strcasecmp(key, "CharMax") == 0)
RETVAL = newSVuv(self->charmax);
else if (strcasecmp(key, "ColMax") == 0)
RETVAL = newSVnv((NV)self->colmax);
else if (strcasecmp(key, "ColMin") == 0)
RETVAL = newSVnv((NV)self->colmin);
else if (strcasecmp(key, "ComplexBreaking") == 0)
RETVAL = newSVuv(self->options &
LINEBREAK_OPTION_COMPLEX_BREAKING);
else if (strcasecmp(key, "Context") == 0) {
if (self->options & LINEBREAK_OPTION_EASTASIAN_CONTEXT)
RETVAL = newSVpvn("EASTASIAN", 9);
else
RETVAL = newSVpvn("NONEASTASIAN", 12);
} else if (strcasecmp(key, "EAWidth") == 0) {
AV *av, *codes = NULL, *ret = NULL;
propval_t p = PROP_UNKNOWN;
unichar_t c;
size_t i;
if (self->map == NULL || self->mapsiz == 0)
XSRETURN_UNDEF;
for (i = 0; i < self->mapsiz; i++)
if (self->map[i].eaw != PROP_UNKNOWN) {
if (p != self->map[i].eaw){
p = self->map[i].eaw;
codes = newAV();
av = newAV();
av_push(av, newRV_noinc((SV *)codes));
av_push(av, newSViv((IV)p));
if (ret == NULL)
ret = newAV();
av_push(ret, newRV_noinc((SV *)av));
}
for (c = self->map[i].beg; c <= self->map[i].end; c++)
av_push(codes, newSVuv(c));
}
if (ret == NULL)
XSRETURN_UNDEF;
RETVAL = newRV_noinc((SV *)ret);
} else if (strcasecmp(key, "Format") == 0) {
func = self->format_func;
if (func == NULL)
XSRETURN_UNDEF;
else if (func == linebreak_format_NEWLINE)
RETVAL = newSVpvn("NEWLINE", 7);
else if (func == linebreak_format_SIMPLE)
RETVAL = newSVpvn("SIMPLE", 6);
else if (func == linebreak_format_TRIM)
RETVAL = newSVpvn("TRIM", 4);
else if (func == format_func) {
if ((val = (SV *)self->format_data) == NULL)
XSRETURN_UNDEF;
ST(0) = val; /* should not be mortal. */
XSRETURN(1);
} else
croak("_config: internal error");
} else if (strcasecmp(key, "HangulAsAL") == 0)
RETVAL = newSVuv(self->options &
LINEBREAK_OPTION_HANGUL_AS_AL);
else if (strcasecmp(key, "LBClass") == 0) {
AV *av, *codes = NULL, *ret = NULL;
propval_t p = PROP_UNKNOWN;
unichar_t c;
size_t i;
if (self->map == NULL || self->mapsiz == 0)
XSRETURN_UNDEF;
for (i = 0; i < self->mapsiz; i++)
if (self->map[i].lbc != PROP_UNKNOWN) {
if (p != self->map[i].lbc){
p = self->map[i].lbc;
codes = newAV();
av = newAV();
av_push(av, newRV_noinc((SV *)codes));
av_push(av, newSViv((IV)p));
if (ret == NULL)
ret = newAV();
av_push(ret, newRV_noinc((SV *)av));
}
for (c = self->map[i].beg; c <= self->map[i].end; c++)
av_push(codes, newSVuv(c));
}
if (ret == NULL)
XSRETURN_UNDEF;
RETVAL = newRV_noinc((SV *)ret);
} else if (strcasecmp(key, "LegacyCM") == 0)
RETVAL = newSVuv(self->options & LINEBREAK_OPTION_LEGACY_CM);
else if (strcasecmp(key, "Newline") == 0) {
unistr_t unistr = {self->newline.str, self->newline.len};
if (self->newline.str == NULL || self->newline.len == 0)
RETVAL = unistrtoSV(&unistr, 0, 0);
else
RETVAL = unistrtoSV(&unistr, 0, self->newline.len);
} else if (strcasecmp(key, "Prep") == 0) {
AV *av;
if (self->prep_func == NULL || self->prep_func[0] == NULL)
XSRETURN_UNDEF;
av = newAV();
for (i = 0; (func = self->prep_func[i]) != NULL; i++)
if (func == linebreak_prep_URIBREAK) {
if (self->prep_data == NULL ||
self->prep_data[i] == NULL)
av_push(av, newSVpvn("NONBREAKURI", 11));
else
av_push(av, newSVpvn("BREAKURI", 8));
} else if (func == prep_func) {
if (self->prep_data == NULL ||
self->prep_data[i] == NULL)
croak("_config: internal error");
SvREFCNT_inc(self->prep_data[i]); /* avoid freed */
av_push(av, self->prep_data[i]);
} else
croak("_config: internal error");
RETVAL = newRV_noinc((SV *)av);
} else if (strcasecmp(key, "Sizing") == 0) {
func = self->sizing_func;
if (func == NULL)
XSRETURN_UNDEF;
else if (func == linebreak_sizing_UAX11)
RETVAL = newSVpvn("UAX11", 5);
else if (func == sizing_func) {
if ((val = (SV *)self->sizing_data) == NULL)
XSRETURN_UNDEF;
ST(0) = val; /* should not be mortal. */
XSRETURN(1);
} else
croak("_config: internal error");
} else if (strcasecmp(key, "Urgent") == 0) {
func = self->urgent_func;
if (func == NULL)
XSRETURN_UNDEF;
else if (func == linebreak_urgent_ABORT)
RETVAL = newSVpvn("CROAK", 5);
else if (func == linebreak_urgent_FORCE)
RETVAL = newSVpvn("FORCE", 5);
else if (func == urgent_func) {
if ((val = (SV *)self->urgent_data) == NULL)
XSRETURN_UNDEF;
ST(0) = val; /* should not be mortal. */
XSRETURN(1);
} else
croak("_config: internal error");
} else if (strcasecmp(key, "ViramaAsJoiner") == 0)
RETVAL = newSVuv(self->options & LINEBREAK_OPTION_VIRAMA_AS_JOINER);
else {
warn("_config: Getting unknown option %s", key);
XSRETURN_UNDEF;
}
} else if (!(items % 2))
croak("_config: Argument size mismatch");
else for (RETVAL = NULL, i = 1; i < items; i += 2) {
if (!SvPOK(ST(i)))
croak("_config: Illegal argument");
key = (char *)SvPV_nolen(ST(i));
val = ST(i + 1);
if (strcasecmp(key, "Prep") == 0) {
SV *sv, *pattern, *func;
AV *av;
REGEXP *rx = NULL;
if (! SvOK(val))
linebreak_add_prep(self, NULL, NULL);
else if (SvROK(val) &&
SvTYPE(av = (AV *)SvRV(val)) == SVt_PVAV &&
0 < av_len(av) + 1) {
pattern = *av_fetch(av, 0, 0);
#if ((PERL_VERSION >= 10) || (PERL_VERSION >= 9 && PERL_SUBVERSION >= 5))
if (SvRXOK(pattern))
rx = SvRX(pattern);
#else /* PERL_VERSION */
if (SvROK(pattern) && SvMAGICAL(sv = SvRV(pattern))) {
MAGIC *mg;
if ((mg = mg_find(sv, PERL_MAGIC_qr)) != NULL)
rx = (REGEXP *)mg->mg_obj;
}
#endif
if (rx != NULL)
SvREFCNT_inc(pattern); /* FIXME:avoid freed */
else if (SvOK(pattern)) {
#if ((PERL_VERSION >= 10) || (PERL_VERSION == 9 && PERL_SUBVERSION >= 5))
rx = pregcomp(pattern, 0);
#else /* PERL_VERSION */
{
PMOP *pm;
New(1, pm, 1, PMOP);
rx = pregcomp(SvPVX(pattern), SvEND(pattern), pm);
}
#endif
if (rx != NULL) {
#if PERL_VERSION >= 11
pattern = newRV_noinc((SV *)rx);
sv_bless(pattern, gv_stashpv("Regexp", 0));
#else /* PERL_VERSION */
sv = newSV(0);
sv_magic(sv, (SV *)rx, PERL_MAGIC_qr, NULL, 0);
pattern = newRV_noinc(sv);
sv_bless(pattern, gv_stashpv("Regexp", 0));
#endif
}
} else
rx = NULL;
if (rx == NULL)
croak("_config: Not a regex");
if (av_fetch(av, 1, 0) == NULL)
func = NULL;
else if (SvOK(func = *av_fetch(av, 1, 0)))
SvREFCNT_inc(func); /* avoid freed */
else
func = NULL;
av = newAV();
av_push(av, pattern);
if (func != NULL)
av_push(av, func);
sv = newRV_noinc((SV *)av);
linebreak_add_prep(self, prep_func, (void *)sv);
SvREFCNT_dec(sv); /* fixup */
} else {
char *s = SvPV_nolen(val);
if (strcasecmp(s, "BREAKURI") == 0)
linebreak_add_prep(self, linebreak_prep_URIBREAK, val);
else if (strcasecmp(s, "NONBREAKURI") == 0)
linebreak_add_prep(self, linebreak_prep_URIBREAK,
NULL);
else
croak("_config: Unknown preprocess option: %s", s);
}
} else if (strcasecmp(key, "Format") == 0) {
if (! SvOK(val))
linebreak_set_format(self, NULL, NULL);
else if (sv_derived_from(val, "CODE"))
linebreak_set_format(self, format_func, (void *)val);
else {
char *s = SvPV_nolen(val);
if (strcasecmp(s, "DEFAULT") == 0) {
warn("_config: "
"Method name \"DEFAULT\" for Format option was "
"obsoleted. Use \"SIMPLE\"");
linebreak_set_format(self, linebreak_format_SIMPLE,
NULL);
} else if (strcasecmp(s, "SIMPLE") == 0)
linebreak_set_format(self, linebreak_format_SIMPLE,
NULL);
else if (strcasecmp(s, "NEWLINE") == 0)
linebreak_set_format(self, linebreak_format_NEWLINE,
NULL);
else if (strcasecmp(s, "TRIM") == 0)
linebreak_set_format(self, linebreak_format_TRIM,
NULL);
else
croak("_config: Unknown Format option: %s", s);
}
} else if (strcasecmp(key, "Sizing") == 0) {
if (! SvOK(val))
linebreak_set_sizing(self, NULL, NULL);
else if (sv_derived_from(val, "CODE"))
linebreak_set_sizing(self, sizing_func, (void *)val);
else {
char *s = SvPV_nolen(val);
if (strcasecmp(s, "DEFAULT") == 0) {
warn("_config: "
"Method name \"DEFAULT\" for Sizing option "
"was obsoleted. Use \"UAX11\"");
linebreak_set_sizing(self, linebreak_sizing_UAX11,
NULL);
} else if (strcasecmp(s, "UAX11") == 0)
linebreak_set_sizing(self, linebreak_sizing_UAX11,
NULL);
else
croak("_config: Unknown Sizing option: %s", s);
}
} else if (strcasecmp(key, "Urgent") == 0) {
if (! SvOK(val))
linebreak_set_urgent(self, NULL, NULL);
else if (sv_derived_from(val, "CODE"))
linebreak_set_urgent(self, urgent_func, (void *)val);
else {
char *s = SvPV_nolen(val);
if (strcasecmp(s, "NONBREAK") == 0) {
warn("_config: "
"Method name \"NONBREAK\" for Urgent "
"option was obsoleted. Use undef");
linebreak_set_urgent(self, NULL, NULL);
} else if (strcasecmp(s, "CROAK") == 0)
linebreak_set_urgent(self, linebreak_urgent_ABORT,
NULL);
else if (strcasecmp(s, "FORCE") == 0)
linebreak_set_urgent(self, linebreak_urgent_FORCE,
NULL);
else
croak("_config: Unknown Urgent option: %s", s);
}
} else if (strcasecmp(key, "BreakIndent") == 0) {
if (SVtoboolean(val))
self->options |= LINEBREAK_OPTION_BREAK_INDENT;
else
self->options &= ~LINEBREAK_OPTION_BREAK_INDENT;
} else if (strcasecmp(key, "CharMax") == 0)
self->charmax = SvUV(val);
else if (strcasecmp(key, "ColMax") == 0)
self->colmax = (double)SvNV(val);
else if (strcasecmp(key, "ColMin") == 0)
self->colmin = (double)SvNV(val);
else if (strcasecmp(key, "ComplexBreaking") == 0) {
if (SVtoboolean(val))
self->options |= LINEBREAK_OPTION_COMPLEX_BREAKING;
else
self->options &= ~LINEBREAK_OPTION_COMPLEX_BREAKING;
} else if (strcasecmp(key, "Context") == 0) {
if (SvOK(val))
opt = (char *)SvPV_nolen(val);
else
opt = NULL;
if (opt && strcasecmp(opt, "EASTASIAN") == 0)
self->options |= LINEBREAK_OPTION_EASTASIAN_CONTEXT;
else
self->options &= ~LINEBREAK_OPTION_EASTASIAN_CONTEXT;
} else if (strcasecmp(key, "EAWidth") == 0) {
AV *av, *codes;
SV *sv;
propval_t p;
size_t i;
if (! SvOK(val))
linebreak_clear_eawidth(self);
else if (SvROK(val) &&
SvTYPE(av = (AV *)SvRV(val)) == SVt_PVAV &&
av_len(av) + 1 == 2 &&
av_fetch(av, 0, 0) != NULL && av_fetch(av, 1, 0) != NULL) {
sv = *av_fetch(av, 1, 0);
if (SvIOK(sv))
p = (propval_t) SvIV(sv);
else
croak("_config: Invalid argument");
sv = *av_fetch(av, 0, 0);
if (SvROK(sv) &&
SvTYPE(codes = (AV *)SvRV(sv)) == SVt_PVAV) {
for (i = 0; i < av_len(codes) + 1; i++) {
if (av_fetch(codes, i, 0) == NULL)
continue;
if (! SvIOK(sv = *av_fetch(codes, i, 0)))
croak("_config: Invalid argument");
linebreak_update_eawidth(self,
(unichar_t) SvUV(sv), p);
}
} else if (SvIOK(sv)) {
linebreak_update_eawidth(self, (unichar_t) SvUV(sv),
p);
} else
croak("_config: Invalid argument");
} else
croak("_config: Invalid argument");
} else if (strcasecmp(key, "HangulAsAL") == 0) {
if (SVtoboolean(val))
self->options |= LINEBREAK_OPTION_HANGUL_AS_AL;
else
self->options &= ~LINEBREAK_OPTION_HANGUL_AS_AL;
} else if (strcasecmp(key, "LBClass") == 0) {
AV *av, *codes;
SV *sv;
propval_t p;
size_t i;
if (! SvOK(val))
linebreak_clear_lbclass(self);
else if (SvROK(val) &&
SvTYPE(av = (AV *)SvRV(val)) == SVt_PVAV &&
av_len(av) + 1 == 2 &&
av_fetch(av, 0, 0) != NULL && av_fetch(av, 1, 0) != NULL) {
sv = *av_fetch(av, 1, 0);
if (SvIOK(sv))