490 lines
14 KiB
C
490 lines
14 KiB
C
/*
|
|
* $Id$
|
|
*
|
|
Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <mio-chr.h>
|
|
#include <mio-utl.h>
|
|
|
|
/* ---------------------------------------------------------- */
|
|
#include "uch-prop.h"
|
|
#include "uch-case.h"
|
|
/* ---------------------------------------------------------- */
|
|
|
|
#define UCH_PROP_MAP_INDEX(c) ((c) / MIO_COUNTOF(uch_prop_page_0000))
|
|
#define UCH_PROP_PAGE_INDEX(c) ((c) % MIO_COUNTOF(uch_prop_page_0000))
|
|
|
|
#define UCH_CASE_MAP_INDEX(c) ((c) / MIO_COUNTOF(uch_case_page_0000))
|
|
#define UCH_CASE_PAGE_INDEX(c) ((c) % MIO_COUNTOF(uch_case_page_0000))
|
|
|
|
#define UCH_IS_TYPE(c,type) \
|
|
((c) >= 0 && (c) <= UCH_PROP_MAX && \
|
|
(uch_prop_map[UCH_PROP_MAP_INDEX(c)][UCH_PROP_PAGE_INDEX(c)] & (type)) != 0)
|
|
|
|
int mio_is_uch_type (mio_uch_t c, mio_uch_prop_t type)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, type);
|
|
}
|
|
|
|
int mio_is_uch_upper (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_UPPER);
|
|
}
|
|
|
|
int mio_is_uch_lower (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_LOWER);
|
|
}
|
|
|
|
int mio_is_uch_alpha (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_ALPHA);
|
|
}
|
|
|
|
int mio_is_uch_digit (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_DIGIT);
|
|
}
|
|
|
|
int mio_is_uch_xdigit (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_XDIGIT);
|
|
}
|
|
|
|
int mio_is_uch_alnum (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_ALNUM);
|
|
}
|
|
|
|
int mio_is_uch_space (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_SPACE);
|
|
}
|
|
|
|
int mio_is_uch_print (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_PRINT);
|
|
}
|
|
|
|
int mio_is_uch_graph (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_GRAPH);
|
|
}
|
|
|
|
int mio_is_uch_cntrl (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_CNTRL);
|
|
}
|
|
|
|
int mio_is_uch_punct (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_PUNCT);
|
|
}
|
|
|
|
int mio_is_uch_blank (mio_uch_t c)
|
|
{
|
|
return UCH_IS_TYPE((mio_uchu_t)c, MIO_UCH_PROP_BLANK);
|
|
}
|
|
|
|
mio_uch_t mio_to_uch_upper (mio_uch_t c)
|
|
{
|
|
mio_uchu_t uc = (mio_uchu_t)c;
|
|
if (uc >= 0 && uc <= UCH_CASE_MAX)
|
|
{
|
|
uch_case_page_t* page;
|
|
page = uch_case_map[UCH_CASE_MAP_INDEX(uc)];
|
|
return uc - page[UCH_CASE_PAGE_INDEX(uc)].upper;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
mio_uch_t mio_to_uch_lower (mio_uch_t c)
|
|
{
|
|
mio_uchu_t uc = (mio_uchu_t)c;
|
|
if (uc >= 0 && uc <= UCH_CASE_MAX)
|
|
{
|
|
uch_case_page_t* page;
|
|
page = uch_case_map[UCH_CASE_MAP_INDEX(uc)];
|
|
return uc + page[UCH_CASE_PAGE_INDEX(uc)].lower;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
/* ---------------------------------------------------------- */
|
|
|
|
int mio_is_bch_type (mio_bch_t c, mio_bch_prop_t type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case MIO_OOCH_PROP_UPPER:
|
|
return mio_is_bch_upper(c);
|
|
case MIO_OOCH_PROP_LOWER:
|
|
return mio_is_bch_lower(c);
|
|
case MIO_OOCH_PROP_ALPHA:
|
|
return mio_is_bch_alpha(c);
|
|
case MIO_OOCH_PROP_DIGIT:
|
|
return mio_is_bch_digit(c);
|
|
case MIO_OOCH_PROP_XDIGIT:
|
|
return mio_is_bch_xdigit(c);
|
|
case MIO_OOCH_PROP_ALNUM:
|
|
return mio_is_bch_alnum(c);
|
|
case MIO_OOCH_PROP_SPACE:
|
|
return mio_is_bch_space(c);
|
|
case MIO_OOCH_PROP_PRINT:
|
|
return mio_is_bch_print(c);
|
|
case MIO_OOCH_PROP_GRAPH:
|
|
return mio_is_bch_graph(c);
|
|
case MIO_OOCH_PROP_CNTRL:
|
|
return mio_is_bch_cntrl(c);
|
|
case MIO_OOCH_PROP_PUNCT:
|
|
return mio_is_bch_punct(c);
|
|
case MIO_OOCH_PROP_BLANK:
|
|
return mio_is_bch_blank(c);
|
|
}
|
|
|
|
/* must not reach here */
|
|
return 0;
|
|
}
|
|
|
|
#if !defined(mio_to_bch_upper)
|
|
mio_bch_t mio_to_bch_upper (mio_bch_t c)
|
|
{
|
|
if(mio_is_bch_lower(c)) return c & 95;
|
|
return c;
|
|
}
|
|
#endif
|
|
|
|
#if !defined(mio_to_bch_lower)
|
|
mio_bch_t mio_to_bch_lower (mio_bch_t c)
|
|
{
|
|
if(mio_is_bch_upper(c)) return c | 32;
|
|
return c;
|
|
}
|
|
#endif
|
|
|
|
|
|
/* ---------------------------------------------------------- */
|
|
|
|
static struct prop_tab_t
|
|
{
|
|
const mio_bch_t* name;
|
|
int class;
|
|
} prop_tab[] =
|
|
{
|
|
{ "alnum", MIO_OOCH_PROP_ALNUM },
|
|
{ "alpha", MIO_OOCH_PROP_ALPHA },
|
|
{ "blank", MIO_OOCH_PROP_BLANK },
|
|
{ "cntrl", MIO_OOCH_PROP_CNTRL },
|
|
{ "digit", MIO_OOCH_PROP_DIGIT },
|
|
{ "graph", MIO_OOCH_PROP_GRAPH },
|
|
{ "lower", MIO_OOCH_PROP_LOWER },
|
|
{ "print", MIO_OOCH_PROP_PRINT },
|
|
{ "punct", MIO_OOCH_PROP_PUNCT },
|
|
{ "space", MIO_OOCH_PROP_SPACE },
|
|
{ "upper", MIO_OOCH_PROP_UPPER },
|
|
{ "xdigit", MIO_OOCH_PROP_XDIGIT }
|
|
};
|
|
|
|
/* ---------------------------------------------------------- */
|
|
|
|
int mio_ucstr_to_uch_prop (const mio_uch_t* name, mio_uch_prop_t* id)
|
|
{
|
|
int left = 0, right = MIO_COUNTOF(prop_tab) - 1, mid;
|
|
while (left <= right)
|
|
{
|
|
int n;
|
|
struct prop_tab_t* kwp;
|
|
|
|
/*mid = (left + right) / 2;*/
|
|
mid = left + (right - left) / 2;
|
|
kwp = &prop_tab[mid];
|
|
|
|
n = mio_comp_ucstr_bcstr(name, kwp->name, 0);
|
|
if (n > 0)
|
|
{
|
|
/* if left, right, mid were of mio_oow_t,
|
|
* you would need the following line.
|
|
if (mid == 0) break;
|
|
*/
|
|
right = mid - 1;
|
|
}
|
|
else if (n < 0) left = mid + 1;
|
|
else
|
|
{
|
|
*id = kwp->class;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int mio_uchars_to_uch_prop (const mio_uch_t* name, mio_oow_t len, mio_uch_prop_t* id)
|
|
{
|
|
int left = 0, right = MIO_COUNTOF(prop_tab) - 1, mid;
|
|
while (left <= right)
|
|
{
|
|
int n;
|
|
struct prop_tab_t* kwp;
|
|
|
|
/*mid = (left + right) / 2;*/
|
|
mid = left + (right - left) / 2;
|
|
kwp = &prop_tab[mid];
|
|
|
|
n = mio_comp_uchars_bcstr(name, len, kwp->name, 0);
|
|
if (n < 0)
|
|
{
|
|
/* if left, right, mid were of mio_oow_t,
|
|
* you would need the following line.
|
|
if (mid == 0) break;
|
|
*/
|
|
right = mid - 1;
|
|
}
|
|
else if (n > 0) left = mid + 1;
|
|
else
|
|
{
|
|
*id = kwp->class;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* ---------------------------------------------------------- */
|
|
|
|
int mio_bcstr_to_bch_prop (const mio_bch_t* name, mio_bch_prop_t* id)
|
|
{
|
|
int left = 0, right = MIO_COUNTOF(prop_tab) - 1, mid;
|
|
while (left <= right)
|
|
{
|
|
int n;
|
|
struct prop_tab_t* kwp;
|
|
|
|
/*mid = (left + right) / 2;*/
|
|
mid = left + (right - left) / 2;
|
|
kwp = &prop_tab[mid];
|
|
|
|
n = mio_comp_bcstr(name, kwp->name, 0);
|
|
if (n > 0)
|
|
{
|
|
/* if left, right, mid were of mio_oow_t,
|
|
* you would need the following line.
|
|
if (mid == 0) break;
|
|
*/
|
|
right = mid - 1;
|
|
}
|
|
else if (n < 0) left = mid + 1;
|
|
else
|
|
{
|
|
*id = kwp->class;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int mio_bchars_to_bch_prop (const mio_bch_t* name, mio_oow_t len, mio_bch_prop_t* id)
|
|
{
|
|
int left = 0, right = MIO_COUNTOF(prop_tab) - 1, mid;
|
|
while (left <= right)
|
|
{
|
|
int n;
|
|
struct prop_tab_t* kwp;
|
|
|
|
/*mid = (left + right) / 2;*/
|
|
mid = left + (right - left) / 2;
|
|
kwp = &prop_tab[mid];
|
|
|
|
n = mio_comp_bchars_bcstr(name, len, kwp->name, 0);
|
|
if (n < 0)
|
|
{
|
|
/* if left, right, mid were of mio_oow_t,
|
|
* you would need the following line.
|
|
if (mid == 0) break;
|
|
*/
|
|
right = mid - 1;
|
|
}
|
|
else if (n > 0) left = mid + 1;
|
|
else
|
|
{
|
|
*id = kwp->class;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* See http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
|
|
*/
|
|
struct interval
|
|
{
|
|
int first;
|
|
int last;
|
|
};
|
|
|
|
/* auxiliary function for binary search in interval table */
|
|
static int bisearch(mio_uch_t ucs, const struct interval *table, int max)
|
|
{
|
|
int min = 0;
|
|
int mid;
|
|
|
|
if (ucs < table[0].first || ucs > table[max].last) return 0;
|
|
while (max >= min)
|
|
{
|
|
mid = (min + max) / 2;
|
|
if (ucs > table[mid].last) min = mid + 1;
|
|
else if (ucs < table[mid].first) max = mid - 1;
|
|
else return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* The following two functions define the column width of an ISO 10646
|
|
* character as follows:
|
|
*
|
|
* - The null character (U+0000) has a column width of 0.
|
|
*
|
|
* - Other C0/C1 control characters and DEL will lead to a return
|
|
* value of -1.
|
|
*
|
|
* - Non-spacing and enclosing combining characters (general
|
|
* category code Mn or Me in the Unicode database) have a
|
|
* column width of 0.
|
|
*
|
|
* - SOFT HYPHEN (U+00AD) has a column width of 1.
|
|
*
|
|
* - Other format characters (general category code Cf in the Unicode
|
|
* database) and ZERO WIDTH SPACE (U+200B) have a column width of 0.
|
|
*
|
|
* - Hangul Jamo medial vowels and final consonants (U+1160-U+11FF)
|
|
* have a column width of 0.
|
|
*
|
|
* - Spacing characters in the East Asian Wide (W) or East Asian
|
|
* Full-width (F) category as defined in Unicode Technical
|
|
* Report #11 have a column width of 2.
|
|
*
|
|
* - All remaining characters (including all printable
|
|
* ISO 8859-1 and WGL4 characters, Unicode control characters,
|
|
* etc.) have a column width of 1.
|
|
*
|
|
* This implementation assumes that wchar_t characters are encoded
|
|
* in ISO 10646.
|
|
*/
|
|
|
|
int mio_get_ucwidth (mio_uch_t uc)
|
|
{
|
|
/* sorted list of non-overlapping intervals of non-spacing characters */
|
|
/* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c" */
|
|
static const struct interval combining[] = {
|
|
{ 0x0300, 0x036F }, { 0x0483, 0x0486 }, { 0x0488, 0x0489 },
|
|
{ 0x0591, 0x05BD }, { 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 },
|
|
{ 0x05C4, 0x05C5 }, { 0x05C7, 0x05C7 }, { 0x0600, 0x0603 },
|
|
{ 0x0610, 0x0615 }, { 0x064B, 0x065E }, { 0x0670, 0x0670 },
|
|
{ 0x06D6, 0x06E4 }, { 0x06E7, 0x06E8 }, { 0x06EA, 0x06ED },
|
|
{ 0x070F, 0x070F }, { 0x0711, 0x0711 }, { 0x0730, 0x074A },
|
|
{ 0x07A6, 0x07B0 }, { 0x07EB, 0x07F3 }, { 0x0901, 0x0902 },
|
|
{ 0x093C, 0x093C }, { 0x0941, 0x0948 }, { 0x094D, 0x094D },
|
|
{ 0x0951, 0x0954 }, { 0x0962, 0x0963 }, { 0x0981, 0x0981 },
|
|
{ 0x09BC, 0x09BC }, { 0x09C1, 0x09C4 }, { 0x09CD, 0x09CD },
|
|
{ 0x09E2, 0x09E3 }, { 0x0A01, 0x0A02 }, { 0x0A3C, 0x0A3C },
|
|
{ 0x0A41, 0x0A42 }, { 0x0A47, 0x0A48 }, { 0x0A4B, 0x0A4D },
|
|
{ 0x0A70, 0x0A71 }, { 0x0A81, 0x0A82 }, { 0x0ABC, 0x0ABC },
|
|
{ 0x0AC1, 0x0AC5 }, { 0x0AC7, 0x0AC8 }, { 0x0ACD, 0x0ACD },
|
|
{ 0x0AE2, 0x0AE3 }, { 0x0B01, 0x0B01 }, { 0x0B3C, 0x0B3C },
|
|
{ 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B43 }, { 0x0B4D, 0x0B4D },
|
|
{ 0x0B56, 0x0B56 }, { 0x0B82, 0x0B82 }, { 0x0BC0, 0x0BC0 },
|
|
{ 0x0BCD, 0x0BCD }, { 0x0C3E, 0x0C40 }, { 0x0C46, 0x0C48 },
|
|
{ 0x0C4A, 0x0C4D }, { 0x0C55, 0x0C56 }, { 0x0CBC, 0x0CBC },
|
|
{ 0x0CBF, 0x0CBF }, { 0x0CC6, 0x0CC6 }, { 0x0CCC, 0x0CCD },
|
|
{ 0x0CE2, 0x0CE3 }, { 0x0D41, 0x0D43 }, { 0x0D4D, 0x0D4D },
|
|
{ 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 }, { 0x0DD6, 0x0DD6 },
|
|
{ 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A }, { 0x0E47, 0x0E4E },
|
|
{ 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EB9 }, { 0x0EBB, 0x0EBC },
|
|
{ 0x0EC8, 0x0ECD }, { 0x0F18, 0x0F19 }, { 0x0F35, 0x0F35 },
|
|
{ 0x0F37, 0x0F37 }, { 0x0F39, 0x0F39 }, { 0x0F71, 0x0F7E },
|
|
{ 0x0F80, 0x0F84 }, { 0x0F86, 0x0F87 }, { 0x0F90, 0x0F97 },
|
|
{ 0x0F99, 0x0FBC }, { 0x0FC6, 0x0FC6 }, { 0x102D, 0x1030 },
|
|
{ 0x1032, 0x1032 }, { 0x1036, 0x1037 }, { 0x1039, 0x1039 },
|
|
{ 0x1058, 0x1059 }, { 0x1160, 0x11FF }, { 0x135F, 0x135F },
|
|
{ 0x1712, 0x1714 }, { 0x1732, 0x1734 }, { 0x1752, 0x1753 },
|
|
{ 0x1772, 0x1773 }, { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD },
|
|
{ 0x17C6, 0x17C6 }, { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD },
|
|
{ 0x180B, 0x180D }, { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 },
|
|
{ 0x1927, 0x1928 }, { 0x1932, 0x1932 }, { 0x1939, 0x193B },
|
|
{ 0x1A17, 0x1A18 }, { 0x1B00, 0x1B03 }, { 0x1B34, 0x1B34 },
|
|
{ 0x1B36, 0x1B3A }, { 0x1B3C, 0x1B3C }, { 0x1B42, 0x1B42 },
|
|
{ 0x1B6B, 0x1B73 }, { 0x1DC0, 0x1DCA }, { 0x1DFE, 0x1DFF },
|
|
{ 0x200B, 0x200F }, { 0x202A, 0x202E }, { 0x2060, 0x2063 },
|
|
{ 0x206A, 0x206F }, { 0x20D0, 0x20EF }, { 0x302A, 0x302F },
|
|
{ 0x3099, 0x309A }, { 0xA806, 0xA806 }, { 0xA80B, 0xA80B },
|
|
{ 0xA825, 0xA826 }, { 0xFB1E, 0xFB1E }, { 0xFE00, 0xFE0F },
|
|
{ 0xFE20, 0xFE23 }, { 0xFEFF, 0xFEFF }, { 0xFFF9, 0xFFFB },
|
|
{ 0x10A01, 0x10A03 }, { 0x10A05, 0x10A06 }, { 0x10A0C, 0x10A0F },
|
|
{ 0x10A38, 0x10A3A }, { 0x10A3F, 0x10A3F }, { 0x1D167, 0x1D169 },
|
|
{ 0x1D173, 0x1D182 }, { 0x1D185, 0x1D18B }, { 0x1D1AA, 0x1D1AD },
|
|
{ 0x1D242, 0x1D244 }, { 0xE0001, 0xE0001 }, { 0xE0020, 0xE007F },
|
|
{ 0xE0100, 0xE01EF }
|
|
};
|
|
|
|
/* test for 8-bit control characters */
|
|
if (uc == 0) return 0;
|
|
if (uc < 32 || (uc >= 0x7f && uc < 0xa0)) return -1;
|
|
|
|
/* binary search in table of non-spacing characters */
|
|
if (bisearch(uc, combining, sizeof(combining) / sizeof(struct interval) - 1)) return 0;
|
|
|
|
/* if we arrive here, uc is not a combining or C0/C1 control character */
|
|
|
|
if (uc >= 0x1100)
|
|
{
|
|
if (uc <= 0x115f || /* Hangul Jamo init. consonants */
|
|
uc == 0x2329 || uc == 0x232a ||
|
|
(uc >= 0x2e80 && uc <= 0xa4cf && uc != 0x303f) || /* CJK ... Yi */
|
|
(uc >= 0xac00 && uc <= 0xd7a3) || /* Hangul Syllables */
|
|
(uc >= 0xf900 && uc <= 0xfaff) || /* CJK Compatibility Ideographs */
|
|
(uc >= 0xfe10 && uc <= 0xfe19) || /* Vertical forms */
|
|
(uc >= 0xfe30 && uc <= 0xfe6f) || /* CJK Compatibility Forms */
|
|
(uc >= 0xff00 && uc <= 0xff60) || /* Fullwidth Forms */
|
|
(uc >= 0xffe0 && uc <= 0xffe6)
|
|
#if (MIO_SIZEOF_UCH_T > 2)
|
|
||
|
|
(uc >= 0x20000 && uc <= 0x2fffd) ||
|
|
(uc >= 0x30000 && uc <= 0x3fffd)
|
|
#endif
|
|
)
|
|
{
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|