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/*
This file is part of VK/KittenPHP-DB-Engine.
VK/KittenPHP-DB-Engine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
VK/KittenPHP-DB-Engine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with VK/KittenPHP-DB-Engine. If not, see <http://www.gnu.org/licenses/>.
This program is released under the GPL with the additional exemption
that compiling, linking, and/or using OpenSSL is allowed.
You are free to remove this exemption from derived works.
Copyright 2011-2013 Vkontakte Ltd
2011-2013 Vitaliy Valtman
*/
#include <string.h>
#include <assert.h>
#include "vkext_flex.h"
#include "vkext_flex_auto.c"
#define BUFF_LEN (1 << 16)
static char buff[BUFF_LEN];
char *estrdup (const char *s) {
char *d = malloc (strlen (s) + 1);
if (d == NULL) return NULL;
strcpy (d,s);
return d;
}
char *do_flex (const char *name, int name_len, const char *case_name, int case_name_len, int sex, const char *type, int type_len, int lang_id) {
if (name_len > (1 << 10)) {
return estrdup (name);
}
struct lang *cur_lang;
if (lang_id < 0 || lang_id >= LANG_NUM || !langs[lang_id]) {
return estrdup (name);
}
cur_lang = langs[lang_id];
assert (cur_lang);
int t = -1;
if (!strcmp (type, "names")) {
if (cur_lang->names_start < 0) {
return estrdup (name);
}
t = cur_lang->names_start;
} else if (!strcmp (type, "surnames")) {
if (cur_lang->surnames_start < 0) {
return estrdup (name);
}
t = cur_lang->surnames_start;
} else {
return estrdup (name);
}
assert (t >= 0);
if (sex != 1) {
sex = 0;
}
int ca = -1;
int i;
for (i = 0; i < CASES_NUM; i++) if (!strcmp (cases_names[i], case_name)) {
ca = i;
break;
}
if (ca == -1 || ca >= cur_lang->cases_num) {
return estrdup (name);
}
assert (ca >= 0 && ca < cur_lang->cases_num);
int p = 0;
int wp = 0;
while (p < name_len) {
int pp = p;
while (pp < name_len && name[pp] != '-') {
pp++;
}
int hyphen = (name[pp] == '-');
int tt = t;
int best = -1;
int save_pp = pp;
int new_tt;
int isf = 0;
if (pp - p > 0) {
const char *fle = cur_lang->flexible_symbols;
while (*fle) {
if (*fle == name[pp - 1]) {
isf = 1;
break;
}
fle ++;
}
}
while (1 && isf) {
assert (tt >= 0);
if (cur_lang->nodes[tt].tail_len >= 0 && (!cur_lang->nodes[tt].hyphen || hyphen)) {
best = tt;
}
unsigned char c;
if (pp == p - 1) {
break;
}
pp --;
if (pp < p) {
c = 0;
} else {
c = name[pp];
}
new_tt = -1;
int l = cur_lang->nodes[tt].children_start;
int r = cur_lang->nodes[tt].children_end;
if (r - l <= 4) {
for (i = l; i < r; i++) if (cur_lang->children[2 * i] == c) {
new_tt = cur_lang->children[2 * i + 1] ;
break;
}
} else {
int x;
while (r - l > 1) {
x = (r + l) >> 1;
if (cur_lang->children[2 * x] <= c) {
l = x;
} else {
r = x;
}
}
if (cur_lang->children[2 * l] == c) {
new_tt = cur_lang->children[2 * l + 1];
}
}
if (new_tt == -1) {
break;
} else {
tt = new_tt;
}
}
if (best == -1) {
memcpy (buff + wp, name + p, save_pp - p);
wp += (save_pp - p);
} else {
int r = -1;
if (!sex) {
r = cur_lang->nodes[best].male_endings;
} else {
r = cur_lang->nodes[best].female_endings;
}
if (r < 0 || !cur_lang->endings[r * cur_lang->cases_num + ca]) {
memcpy (buff + wp, name + p, save_pp - p);
wp += (save_pp - p);
} else {
int ml = save_pp - p - cur_lang->nodes[best].tail_len;
if (ml < 0) {
ml = 0;
}
memcpy (buff + wp, name + p, ml);
wp += ml;
strcpy (buff + wp, cur_lang->endings[r * cur_lang->cases_num + ca]);
wp += strlen (cur_lang->endings[r * cur_lang->cases_num + ca]);
}
}
if (hyphen) {
buff[wp++] = '-';
} else {
buff[wp++] = 0;
}
p = save_pp + 1;
}
return estrdup (buff);
}
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