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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* Copyright (C) 2002-2022 Németh László
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Hunspell is based on MySpell which is Copyright (C) 2002 Kevin Hendricks.
*
* Contributor(s): David Einstein, Davide Prina, Giuseppe Modugno,
* Gianluca Turconi, Simon Brouwer, Noll János, Bíró Árpád,
* Goldman Eleonóra, Sarlós Tamás, Bencsáth Boldizsár, Halácsy Péter,
* Dvornik László, Gefferth András, Nagy Viktor, Varga Dániel, Chris Halls,
* Rene Engelhard, Bram Moolenaar, Dafydd Jones, Harri Pitkänen
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* Copyright 2002 Kevin B. Hendricks, Stratford, Ontario, Canada
* And Contributors. 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.
*
* 3. All modifications to the source code must be clearly marked as
* such. Binary redistributions based on modified source code
* must be clearly marked as modified versions in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY KEVIN B. HENDRICKS AND CONTRIBUTORS
* ``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
* KEVIN B. HENDRICKS OR CONTRIBUTORS 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 <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <limits>
#include <sstream>
#include "hashmgr.hxx"
#include "csutil.hxx"
#include "atypes.hxx"
#include "langnum.hxx"
// build a hash table from a munched word list
HashMgr::HashMgr(const char* tpath, const char* apath, const char* key)
: tablesize(0),
tableptr(NULL),
flag_mode(FLAG_CHAR),
complexprefixes(0),
utf8(0),
forbiddenword(FORBIDDENWORD) // forbidden word signing flag
,
numaliasf(0),
aliasf(NULL),
aliasflen(0),
numaliasm(0),
aliasm(NULL) {
langnum = 0;
csconv = 0;
load_config(apath, key);
int ec = load_tables(tpath, key);
if (ec) {
/* error condition - what should we do here */
HUNSPELL_WARNING(stderr, "Hash Manager Error : %d\n", ec);
free(tableptr);
//keep tablesize to 1 to fix possible division with zero
tablesize = 1;
tableptr = (struct hentry**)calloc(tablesize, sizeof(struct hentry*));
if (!tableptr) {
tablesize = 0;
}
}
}
HashMgr::~HashMgr() {
if (tableptr) {
// now pass through hash table freeing up everything
// go through column by column of the table
for (int i = 0; i < tablesize; i++) {
struct hentry* pt = tableptr[i];
struct hentry* nt = NULL;
while (pt) {
nt = pt->next;
if (pt->astr &&
(!aliasf || TESTAFF(pt->astr, ONLYUPCASEFLAG, pt->alen)))
arena_free(pt->astr);
arena_free(pt);
pt = nt;
}
}
free(tableptr);
}
tablesize = 0;
if (aliasf) {
for (int j = 0; j < (numaliasf); j++)
arena_free(aliasf[j]);
arena_free(aliasf);
aliasf = NULL;
if (aliasflen) {
arena_free(aliasflen);
aliasflen = NULL;
}
}
if (aliasm) {
for (int j = 0; j < (numaliasm); j++)
arena_free(aliasm[j]);
arena_free(aliasm);
aliasm = NULL;
}
#ifndef OPENOFFICEORG
#ifndef MOZILLA_CLIENT
if (utf8)
free_utf_tbl();
#endif
#endif
#ifdef MOZILLA_CLIENT
delete[] csconv;
#endif
assert(outstanding_arena_allocations == 0);
}
// lookup a root word in the hashtable
struct hentry* HashMgr::lookup(const char* word) const {
struct hentry* dp;
if (tableptr) {
dp = tableptr[hash(word)];
if (!dp)
return NULL;
for (; dp != NULL; dp = dp->next) {
if (strcmp(word, dp->word) == 0)
return dp;
}
}
return NULL;
}
// add a word to the hash table (private)
int HashMgr::add_word(const std::string& in_word,
int wcl,
unsigned short* aff,
int al,
const std::string* in_desc,
bool onlyupcase,
int captype) {
const std::string* word = &in_word;
const std::string* desc = in_desc;
std::string *word_copy = NULL;
std::string *desc_copy = NULL;
if ((!ignorechars.empty() && !has_no_ignored_chars(in_word, ignorechars)) || complexprefixes) {
word_copy = new std::string(in_word);
if (!ignorechars.empty()) {
if (utf8) {
wcl = remove_ignored_chars_utf(*word_copy, ignorechars_utf16);
} else {
remove_ignored_chars(*word_copy, ignorechars);
}
}
if (complexprefixes) {
if (utf8)
wcl = reverseword_utf(*word_copy);
else
reverseword(*word_copy);
if (in_desc && !aliasm) {
desc_copy = new std::string(*in_desc);
if (complexprefixes) {
if (utf8)
reverseword_utf(*desc_copy);
else
reverseword(*desc_copy);
}
desc = desc_copy;
}
}
word = word_copy;
}
bool upcasehomonym = false;
int descl = desc ? (aliasm ? sizeof(char*) : desc->size() + 1) : 0;
// variable-length hash record with word and optional fields
struct hentry* hp =
(struct hentry*)arena_alloc(sizeof(struct hentry) + word->size() + descl);
if (!hp) {
delete desc_copy;
delete word_copy;
return 1;
}
char* hpw = hp->word;
strcpy(hpw, word->c_str());
int i = hash(hpw);
hp->blen = (unsigned char)word->size();
hp->clen = (unsigned char)wcl;
hp->alen = (short)al;
hp->astr = aff;
hp->next = NULL;
hp->next_homonym = NULL;
hp->var = (captype == INITCAP) ? H_OPT_INITCAP : 0;
// store the description string or its pointer
if (desc) {
hp->var |= H_OPT;
if (aliasm) {
hp->var |= H_OPT_ALIASM;
store_pointer(hpw + word->size() + 1, get_aliasm(atoi(desc->c_str())));
} else {
strcpy(hpw + word->size() + 1, desc->c_str());
}
if (strstr(HENTRY_DATA(hp), MORPH_PHON)) {
hp->var |= H_OPT_PHON;
// store ph: fields (pronounciation, misspellings, old orthography etc.)
// of a morphological description in reptable to use in REP replacements.
if (reptable.capacity() < (unsigned int)(tablesize/MORPH_PHON_RATIO))
reptable.reserve(tablesize/MORPH_PHON_RATIO);
std::string fields = HENTRY_DATA(hp);
std::string::const_iterator iter = fields.begin();
std::string::const_iterator start_piece = mystrsep(fields, iter);
while (start_piece != fields.end()) {
if (std::string(start_piece, iter).find(MORPH_PHON) == 0) {
std::string ph = std::string(start_piece, iter).substr(sizeof MORPH_PHON - 1);
if (ph.size() > 0) {
std::vector<w_char> w;
size_t strippatt;
std::string wordpart;
// dictionary based REP replacement, separated by "->"
// for example "pretty ph:prity ph:priti->pretti" to handle
// both prity -> pretty and pritier -> prettiest suggestions.
if (((strippatt = ph.find("->")) != std::string::npos) &&
(strippatt > 0) && (strippatt < ph.size() - 2)) {
wordpart = ph.substr(strippatt + 2);
ph.erase(ph.begin() + strippatt, ph.end());
} else
wordpart = in_word;
// when the ph: field ends with the character *,
// strip last character of the pattern and the replacement
// to match in REP suggestions also at character changes,
// for example, "pretty ph:prity*" results "prit->prett"
// REP replacement instead of "prity->pretty", to get
// prity->pretty and pritiest->prettiest suggestions.
if (ph.at(ph.size()-1) == '*') {
strippatt = 1;
size_t stripword = 0;
if (utf8) {
while ((strippatt < ph.size()) &&
((ph.at(ph.size()-strippatt-1) & 0xc0) == 0x80))
++strippatt;
while ((stripword < wordpart.size()) &&
((wordpart.at(wordpart.size()-stripword-1) & 0xc0) == 0x80))
++stripword;
}
++strippatt;
++stripword;
if ((ph.size() > strippatt) && (wordpart.size() > stripword)) {
ph.erase(ph.size()-strippatt, strippatt);
wordpart.erase(in_word.size()-stripword, stripword);
}
}
// capitalize lowercase pattern for capitalized words to support
// good suggestions also for capitalized misspellings, eg.
// Wednesday ph:wendsay
// results wendsay -> Wednesday and Wendsay -> Wednesday, too.
if (captype==INITCAP) {
std::string ph_capitalized;
if (utf8) {
u8_u16(w, ph);
if (get_captype_utf8(w, langnum) == NOCAP) {
mkinitcap_utf(w, langnum);
u16_u8(ph_capitalized, w);
}
} else if (get_captype(ph, csconv) == NOCAP)
mkinitcap(ph_capitalized, csconv);
if (ph_capitalized.size() > 0) {
// add also lowercase word in the case of German or
// Hungarian to support lowercase suggestions lowercased by
// compound word generation or derivational suffixes
// (for example by adjectival suffix "-i" of geographical
// names in Hungarian:
// Massachusetts ph:messzecsuzec
// messzecsuzeci -> massachusettsi (adjective)
// For lowercasing by conditional PFX rules, see
// tests/germancompounding test example or the
// Hungarian dictionary.)
if (langnum == LANG_de || langnum == LANG_hu) {
std::string wordpart_lower(wordpart);
if (utf8) {
u8_u16(w, wordpart_lower);
mkallsmall_utf(w, langnum);
u16_u8(wordpart_lower, w);
} else {
mkallsmall(wordpart_lower, csconv);
}
reptable.push_back(replentry());
reptable.back().pattern.assign(ph);
reptable.back().outstrings[0].assign(wordpart_lower);
}
reptable.push_back(replentry());
reptable.back().pattern.assign(ph_capitalized);
reptable.back().outstrings[0].assign(wordpart);
}
}
reptable.push_back(replentry());
reptable.back().pattern.assign(ph);
reptable.back().outstrings[0].assign(wordpart);
}
}
start_piece = mystrsep(fields, iter);
}
}
}
struct hentry* dp = tableptr[i];
if (!dp) {
tableptr[i] = hp;
delete desc_copy;
delete word_copy;
return 0;
}
while (dp->next != NULL) {
if ((!dp->next_homonym) && (strcmp(hp->word, dp->word) == 0)) {
// remove hidden onlyupcase homonym
if (!onlyupcase) {
if ((dp->astr) && TESTAFF(dp->astr, ONLYUPCASEFLAG, dp->alen)) {
arena_free(dp->astr);
dp->astr = hp->astr;
dp->alen = hp->alen;
arena_free(hp);
delete desc_copy;
delete word_copy;
return 0;
} else {
dp->next_homonym = hp;
}
} else {
upcasehomonym = true;
}
}
dp = dp->next;
}
if (strcmp(hp->word, dp->word) == 0) {
// remove hidden onlyupcase homonym
if (!onlyupcase) {
if ((dp->astr) && TESTAFF(dp->astr, ONLYUPCASEFLAG, dp->alen)) {
arena_free(dp->astr);
dp->astr = hp->astr;
dp->alen = hp->alen;
arena_free(hp);
delete desc_copy;
delete word_copy;
return 0;
} else {
dp->next_homonym = hp;
}
} else {
upcasehomonym = true;
}
}
if (!upcasehomonym) {
dp->next = hp;
} else {
// remove hidden onlyupcase homonym
if (hp->astr)
arena_free(hp->astr);
arena_free(hp);
}
delete desc_copy;
delete word_copy;
return 0;
}
int HashMgr::add_hidden_capitalized_word(const std::string& word,
int wcl,
unsigned short* flags,
int flagslen,
const std::string* dp,
int captype) {
if (flags == NULL)
flagslen = 0;
// add inner capitalized forms to handle the following allcap forms:
// Mixed caps: OpenOffice.org -> OPENOFFICE.ORG
// Allcaps with suffixes: CIA's -> CIA'S
if (((captype == HUHCAP) || (captype == HUHINITCAP) ||
((captype == ALLCAP) && (flagslen != 0))) &&
!((flagslen != 0) && TESTAFF(flags, forbiddenword, flagslen))) {
unsigned short* flags2 =
(unsigned short*)arena_alloc(sizeof(unsigned short) * (flagslen + 1));
if (!flags2)
return 1;
if (flagslen)
memcpy(flags2, flags, flagslen * sizeof(unsigned short));
flags2[flagslen] = ONLYUPCASEFLAG;
if (utf8) {
std::string st;
std::vector<w_char> w;
u8_u16(w, word);
mkallsmall_utf(w, langnum);
mkinitcap_utf(w, langnum);
u16_u8(st, w);
return add_word(st, wcl, flags2, flagslen + 1, dp, true, INITCAP);
} else {
std::string new_word(word);
mkallsmall(new_word, csconv);
mkinitcap(new_word, csconv);
int ret = add_word(new_word, wcl, flags2, flagslen + 1, dp, true, INITCAP);
return ret;
}
}
return 0;
}
// detect captype and modify word length for UTF-8 encoding
int HashMgr::get_clen_and_captype(const std::string& word, int* captype, std::vector<w_char> &workbuf) {
int len;
if (utf8) {
len = u8_u16(workbuf, word);
*captype = get_captype_utf8(workbuf, langnum);
} else {
len = word.size();
*captype = get_captype(word, csconv);
}
return len;
}
int HashMgr::get_clen_and_captype(const std::string& word, int* captype) {
std::vector<w_char> workbuf;
return get_clen_and_captype(word, captype, workbuf);
}
// remove word (personal dictionary function for standalone applications)
int HashMgr::remove(const std::string& word) {
struct hentry* dp = lookup(word.c_str());
while (dp) {
if (dp->alen == 0 || !TESTAFF(dp->astr, forbiddenword, dp->alen)) {
unsigned short* flags =
(unsigned short*)arena_alloc(sizeof(unsigned short) * (dp->alen + 1));
if (!flags)
return 1;
for (int i = 0; i < dp->alen; i++)
flags[i] = dp->astr[i];
flags[dp->alen] = forbiddenword;
arena_free(dp->astr);
dp->astr = flags;
dp->alen++;
std::sort(flags, flags + dp->alen);
}
dp = dp->next_homonym;
}
return 0;
}
/* remove forbidden flag to add a personal word to the hash */
int HashMgr::remove_forbidden_flag(const std::string& word) {
struct hentry* dp = lookup(word.c_str());
if (!dp)
return 1;
while (dp) {
if (dp->astr && TESTAFF(dp->astr, forbiddenword, dp->alen))
dp->alen = 0; // XXX forbidden words of personal dic.
dp = dp->next_homonym;
}
return 0;
}
// add a custom dic. word to the hash table (public)
int HashMgr::add(const std::string& word) {
if (remove_forbidden_flag(word)) {
int captype;
int al = 0;
unsigned short* flags = NULL;
int wcl = get_clen_and_captype(word, &captype);
add_word(word, wcl, flags, al, NULL, false, captype);
return add_hidden_capitalized_word(word, wcl, flags, al, NULL,
captype);
}
return 0;
}
int HashMgr::add_with_affix(const std::string& word, const std::string& example) {
// detect captype and modify word length for UTF-8 encoding
struct hentry* dp = lookup(example.c_str());
remove_forbidden_flag(word);
if (dp && dp->astr) {
int captype;
int wcl = get_clen_and_captype(word, &captype);
if (aliasf) {
add_word(word, wcl, dp->astr, dp->alen, NULL, false, captype);
} else {
unsigned short* flags =
(unsigned short*) arena_alloc(dp->alen * sizeof(unsigned short));
if (flags) {
memcpy((void*)flags, (void*)dp->astr,
dp->alen * sizeof(unsigned short));
add_word(word, wcl, flags, dp->alen, NULL, false, captype);
} else
return 1;
}
return add_hidden_capitalized_word(word, wcl, dp->astr,
dp->alen, NULL, captype);
}
return 1;
}
// walk the hash table entry by entry - null at end
// initialize: col=-1; hp = NULL; hp = walk_hashtable(&col, hp);
struct hentry* HashMgr::walk_hashtable(int& col, struct hentry* hp) const {
if (hp && hp->next != NULL)
return hp->next;
for (col++; col < tablesize; col++) {
if (tableptr[col])
return tableptr[col];
}
// null at end and reset to start
col = -1;
return NULL;
}
// load a munched word list and build a hash table on the fly
int HashMgr::load_tables(const char* tpath, const char* key) {
// open dictionary file
FileMgr* dict = new FileMgr(tpath, key);
if (dict == NULL)
return 1;
// first read the first line of file to get hash table size */
std::string ts;
if (!dict->getline(ts)) {
HUNSPELL_WARNING(stderr, "error: empty dic file %s\n", tpath);
delete dict;
return 2;
}
mychomp(ts);
/* remove byte order mark */
if (ts.compare(0, 3, "\xEF\xBB\xBF", 3) == 0) {
ts.erase(0, 3);
}
tablesize = atoi(ts.c_str());
int nExtra = 5 + USERWORD;
if (tablesize <= 0 ||
(tablesize >= (std::numeric_limits<int>::max() - 1 - nExtra) /
int(sizeof(struct hentry*)))) {
HUNSPELL_WARNING(
stderr, "error: line 1: missing or bad word count in the dic file\n");
delete dict;
return 4;
}
tablesize += nExtra;
if ((tablesize % 2) == 0)
tablesize++;
// allocate the hash table
tableptr = (struct hentry**)calloc(tablesize, sizeof(struct hentry*));
if (!tableptr) {
delete dict;
return 3;
}
// loop through all words on much list and add to hash
// table and create word and affix strings
std::vector<w_char> workbuf;
while (dict->getline(ts)) {
mychomp(ts);
// split each line into word and morphological description
size_t dp_pos = 0;
while ((dp_pos = ts.find(':', dp_pos)) != std::string::npos) {
if ((dp_pos > 3) && (ts[dp_pos - 3] == ' ' || ts[dp_pos - 3] == '\t')) {
for (dp_pos -= 3; dp_pos > 0 && (ts[dp_pos-1] == ' ' || ts[dp_pos-1] == '\t'); --dp_pos)
;
if (dp_pos == 0) { // missing word
dp_pos = std::string::npos;
} else {
++dp_pos;
}
break;
}
++dp_pos;
}
// tabulator is the old morphological field separator
size_t dp2_pos = ts.find('\t');
if (dp2_pos != std::string::npos && (dp_pos == std::string::npos || dp2_pos < dp_pos)) {
dp_pos = dp2_pos + 1;
}
std::string dp;
if (dp_pos != std::string::npos) {
dp.assign(ts.substr(dp_pos));
ts.resize(dp_pos - 1);
}
// split each line into word and affix char strings
// "\/" signs slash in words (not affix separator)
// "/" at beginning of the line is word character (not affix separator)
size_t ap_pos = ts.find('/');
while (ap_pos != std::string::npos) {
if (ap_pos == 0) {
++ap_pos;
continue;
} else if (ts[ap_pos - 1] != '\\')
break;
// replace "\/" with "/"
ts.erase(ap_pos - 1, 1);
ap_pos = ts.find('/', ap_pos);
}
unsigned short* flags;
int al;
if (ap_pos != std::string::npos && ap_pos != ts.size()) {
std::string ap(ts.substr(ap_pos + 1));
ts.resize(ap_pos);
if (aliasf) {
int index = atoi(ap.c_str());
al = get_aliasf(index, &flags, dict);
if (!al) {
HUNSPELL_WARNING(stderr, "error: line %d: bad flag vector alias\n",
dict->getlinenum());
}
} else {
al = decode_flags(&flags, ap.c_str(), dict, /* arena = */ true);
if (al == -1) {
HUNSPELL_WARNING(stderr, "Can't allocate memory.\n");
delete dict;
return 6;
}
std::sort(flags, flags + al);
}
} else {
al = 0;
flags = NULL;
}
int captype;
int wcl = get_clen_and_captype(ts, &captype, workbuf);
const std::string *dp_str = dp.empty() ? NULL : &dp;
// add the word and its index plus its capitalized form optionally
if (add_word(ts, wcl, flags, al, dp_str, false, captype) ||
add_hidden_capitalized_word(ts, wcl, flags, al, dp_str, captype)) {
delete dict;
return 5;
}
}
delete dict;
return 0;
}
// the hash function is a simple load and rotate
// algorithm borrowed
int HashMgr::hash(const char* word) const {
unsigned long hv = 0;
for (int i = 0; i < 4 && *word != 0; i++)
hv = (hv << 8) | (*word++);
while (*word != 0) {
ROTATE(hv, ROTATE_LEN);
hv ^= (*word++);
}
return (unsigned long)hv % tablesize;
}
int HashMgr::decode_flags(unsigned short** result, const std::string& flags, FileMgr* af, bool arena) const {
auto alloc = [arena, this](int n) { return arena ? this->arena_alloc(n) : malloc(n); };
int len;
if (flags.empty()) {
*result = NULL;
return 0;
}
switch (flag_mode) {
case FLAG_LONG: { // two-character flags (1x2yZz -> 1x 2y Zz)
len = flags.size();
if (len % 2 == 1)
HUNSPELL_WARNING(stderr, "error: line %d: bad flagvector\n",
af->getlinenum());
len /= 2;
*result = (unsigned short*)alloc(len * sizeof(unsigned short));
if (!*result)
return -1;
for (int i = 0; i < len; i++) {
(*result)[i] = ((unsigned short)((unsigned char)flags[i * 2]) << 8) +
(unsigned char)flags[i * 2 + 1];
}
break;
}
case FLAG_NUM: { // decimal numbers separated by comma (4521,23,233 -> 4521
// 23 233)
len = 1;
unsigned short* dest;
for (size_t i = 0; i < flags.size(); ++i) {
if (flags[i] == ',')
len++;
}
*result = (unsigned short*)alloc(len * sizeof(unsigned short));
if (!*result)
return -1;
dest = *result;
const char* src = flags.c_str();
for (const char* p = src; *p; p++) {
if (*p == ',') {
int i = atoi(src);
if (i >= DEFAULTFLAGS)
HUNSPELL_WARNING(
stderr, "error: line %d: flag id %d is too large (max: %d)\n",
af->getlinenum(), i, DEFAULTFLAGS - 1);
*dest = (unsigned short)i;
if (*dest == 0)
HUNSPELL_WARNING(stderr, "error: line %d: 0 is wrong flag id\n",
af->getlinenum());
src = p + 1;
dest++;
}
}
int i = atoi(src);
if (i >= DEFAULTFLAGS)
HUNSPELL_WARNING(stderr,
"error: line %d: flag id %d is too large (max: %d)\n",
af->getlinenum(), i, DEFAULTFLAGS - 1);
*dest = (unsigned short)i;
if (*dest == 0)
HUNSPELL_WARNING(stderr, "error: line %d: 0 is wrong flag id\n",
af->getlinenum());
break;
}
case FLAG_UNI: { // UTF-8 characters
std::vector<w_char> w;
u8_u16(w, flags);
len = w.size();
*result = (unsigned short*)alloc(len * sizeof(unsigned short));
if (!*result)
return -1;
memcpy(*result, w.data(), len * sizeof(short));
break;
}
default: { // Ispell's one-character flags (erfg -> e r f g)
unsigned short* dest;
len = flags.size();
*result = (unsigned short*)alloc(len * sizeof(unsigned short));
if (!*result)
return -1;
dest = *result;
for (size_t i = 0; i < flags.size(); ++i) {
*dest = (unsigned char)flags[i];
dest++;
}
}
}
return len;
}
bool HashMgr::decode_flags(std::vector<unsigned short>& result, const std::string& flags, FileMgr* af) const {
if (flags.empty()) {
return false;
}
switch (flag_mode) {
case FLAG_LONG: { // two-character flags (1x2yZz -> 1x 2y Zz)
size_t len = flags.size();
if (len % 2 == 1)
HUNSPELL_WARNING(stderr, "error: line %d: bad flagvector\n",
af->getlinenum());
len /= 2;
result.reserve(result.size() + len);
for (size_t i = 0; i < len; ++i) {
result.push_back(((unsigned short)((unsigned char)flags[i * 2]) << 8) +
(unsigned char)flags[i * 2 + 1]);
}
break;
}
case FLAG_NUM: { // decimal numbers separated by comma (4521,23,233 -> 4521
// 23 233)
const char* src = flags.c_str();
for (const char* p = src; *p; p++) {
if (*p == ',') {
int i = atoi(src);
if (i >= DEFAULTFLAGS)
HUNSPELL_WARNING(
stderr, "error: line %d: flag id %d is too large (max: %d)\n",
af->getlinenum(), i, DEFAULTFLAGS - 1);
result.push_back((unsigned short)i);
if (result.back() == 0)
HUNSPELL_WARNING(stderr, "error: line %d: 0 is wrong flag id\n",
af->getlinenum());
src = p + 1;
}
}
int i = atoi(src);
if (i >= DEFAULTFLAGS)
HUNSPELL_WARNING(stderr,
"error: line %d: flag id %d is too large (max: %d)\n",
af->getlinenum(), i, DEFAULTFLAGS - 1);
result.push_back((unsigned short)i);
if (result.back() == 0)
HUNSPELL_WARNING(stderr, "error: line %d: 0 is wrong flag id\n",
af->getlinenum());
break;
}
case FLAG_UNI: { // UTF-8 characters
std::vector<w_char> w;
u8_u16(w, flags);
size_t len = w.size();
size_t origsize = result.size();
result.resize(origsize + len);
memcpy(result.data() + origsize, w.data(), len * sizeof(short));
break;
}
default: { // Ispell's one-character flags (erfg -> e r f g)
result.reserve(flags.size());
for (size_t i = 0; i < flags.size(); ++i) {
result.push_back((unsigned char)flags[i]);
}
}
}
return true;
}
unsigned short HashMgr::decode_flag(const char* f) const {
unsigned short s = 0;
int i;
switch (flag_mode) {
case FLAG_LONG:
s = ((unsigned short)((unsigned char)f[0]) << 8) + (unsigned char)f[1];
break;
case FLAG_NUM:
i = atoi(f);
if (i >= DEFAULTFLAGS)
HUNSPELL_WARNING(stderr, "error: flag id %d is too large (max: %d)\n",
i, DEFAULTFLAGS - 1);
s = (unsigned short)i;
break;
case FLAG_UNI: {
std::vector<w_char> w;
u8_u16(w, f);
if (!w.empty())
memcpy(&s, w.data(), 1 * sizeof(short));
break;
}
default:
s = *(unsigned char*)f;
}
if (s == 0)
HUNSPELL_WARNING(stderr, "error: 0 is wrong flag id\n");
return s;
}
// This function is only called by external consumers, and so using the default
// allocator with mystrdup is correct.
char* HashMgr::encode_flag(unsigned short f) const {
if (f == 0)
return mystrdup("(NULL)");
std::string ch;
if (flag_mode == FLAG_LONG) {
ch.push_back((unsigned char)(f >> 8));
ch.push_back((unsigned char)(f - ((f >> 8) << 8)));
} else if (flag_mode == FLAG_NUM) {
std::ostringstream stream;
stream << f;
ch = stream.str();
} else if (flag_mode == FLAG_UNI) {
const w_char* w_c = (const w_char*)&f;
std::vector<w_char> w(w_c, w_c + 1);
u16_u8(ch, w);
} else {
ch.push_back((unsigned char)(f));
}
return mystrdup(ch.c_str());
}
// read in aff file and set flag mode
int HashMgr::load_config(const char* affpath, const char* key) {
int firstline = 1;
// open the affix file
FileMgr* afflst = new FileMgr(affpath, key);
if (!afflst) {
HUNSPELL_WARNING(
stderr, "Error - could not open affix description file %s\n", affpath);
return 1;
}
// read in each line ignoring any that do not
// start with a known line type indicator
std::string line;
while (afflst->getline(line)) {
mychomp(line);
/* remove byte order mark */
if (firstline) {
firstline = 0;
if (line.compare(0, 3, "\xEF\xBB\xBF", 3) == 0) {
line.erase(0, 3);
}
}
/* parse in the try string */
if ((line.compare(0, 4, "FLAG", 4) == 0) && line.size() > 4 && isspace(line[4])) {
if (flag_mode != FLAG_CHAR) {
HUNSPELL_WARNING(stderr,
"error: line %d: multiple definitions of the FLAG "
"affix file parameter\n",
afflst->getlinenum());
}
if (line.find("long") != std::string::npos)
flag_mode = FLAG_LONG;
if (line.find("num") != std::string::npos)
flag_mode = FLAG_NUM;
if (line.find("UTF-8") != std::string::npos)
flag_mode = FLAG_UNI;
if (flag_mode == FLAG_CHAR) {
HUNSPELL_WARNING(
stderr,
"error: line %d: FLAG needs `num', `long' or `UTF-8' parameter\n",
afflst->getlinenum());
}
}
if (line.compare(0, 13, "FORBIDDENWORD", 13) == 0) {
std::string st;
if (!parse_string(line, st, afflst->getlinenum())) {
delete afflst;
return 1;
}
forbiddenword = decode_flag(st.c_str());
}
if (line.compare(0, 3, "SET", 3) == 0) {
if (!parse_string(line, enc, afflst->getlinenum())) {
delete afflst;
return 1;
}
if (enc == "UTF-8") {
utf8 = 1;
#ifndef OPENOFFICEORG
#ifndef MOZILLA_CLIENT
initialize_utf_tbl();
#endif
#endif
} else
csconv = get_current_cs(enc);
}
if (line.compare(0, 4, "LANG", 4) == 0) {
if (!parse_string(line, lang, afflst->getlinenum())) {
delete afflst;
return 1;
}
langnum = get_lang_num(lang);
}
/* parse in the ignored characters (for example, Arabic optional diacritics
* characters */
if (line.compare(0, 6, "IGNORE", 6) == 0) {
if (!parse_array(line, ignorechars, ignorechars_utf16,
utf8, afflst->getlinenum())) {
delete afflst;
return 1;
}
}
if ((line.compare(0, 2, "AF", 2) == 0) && line.size() > 2 && isspace(line[2])) {
if (!parse_aliasf(line, afflst)) {
delete afflst;
return 1;
}
}
if ((line.compare(0, 2, "AM", 2) == 0) && line.size() > 2 && isspace(line[2])) {
if (!parse_aliasm(line, afflst)) {
delete afflst;
return 1;
}
}
if (line.compare(0, 15, "COMPLEXPREFIXES", 15) == 0)
complexprefixes = 1;
/* parse in the typical fault correcting table */
if (line.compare(0, 3, "REP", 3) == 0) {
if (!parse_reptable(line, afflst)) {
delete afflst;
return 1;
}
}
// don't check the full affix file, yet
if (((line.compare(0, 3, "SFX", 3) == 0) ||
(line.compare(0, 3, "PFX", 3) == 0)) &&
line.size() > 3 && isspace(line[3]) &&
!reptable.empty()) // (REP table is in the end of Afrikaans aff file)
break;
}
if (csconv == NULL)
csconv = get_current_cs(SPELL_ENCODING);
delete afflst;
return 0;
}
/* parse in the ALIAS table */
bool HashMgr::parse_aliasf(const std::string& line, FileMgr* af) {
if (numaliasf != 0) {
HUNSPELL_WARNING(stderr, "error: line %d: multiple table definitions\n",
af->getlinenum());
return false;
}
int i = 0;
int np = 0;
std::string::const_iterator iter = line.begin();
std::string::const_iterator start_piece = mystrsep(line, iter);
while (start_piece != line.end()) {
switch (i) {
case 0: {
np++;
break;
}
case 1: {
numaliasf = atoi(std::string(start_piece, iter).c_str());
if (numaliasf < 1) {
numaliasf = 0;
aliasf = NULL;
aliasflen = NULL;
HUNSPELL_WARNING(stderr, "error: line %d: bad entry number\n",
af->getlinenum());
return false;
}
aliasf =
(unsigned short**)arena_alloc(numaliasf * sizeof(unsigned short*));
aliasflen =
(unsigned short*)arena_alloc(numaliasf * sizeof(unsigned short));
if (!aliasf || !aliasflen) {
numaliasf = 0;
if (aliasf)
arena_free(aliasf);
if (aliasflen)
arena_free(aliasflen);
aliasf = NULL;
aliasflen = NULL;
return false;
}
np++;
break;
}
default:
break;
}
++i;
start_piece = mystrsep(line, iter);
}
if (np != 2) {
numaliasf = 0;
arena_free(aliasf);
arena_free(aliasflen);
aliasf = NULL;
aliasflen = NULL;
HUNSPELL_WARNING(stderr, "error: line %d: missing data\n",
af->getlinenum());
return false;
}
/* now parse the numaliasf lines to read in the remainder of the table */
for (int j = 0; j < numaliasf; j++) {
std::string nl;
aliasf[j] = NULL;
aliasflen[j] = 0;
i = 0;
if (af->getline(nl)) {
mychomp(nl);
iter = nl.begin();
start_piece = mystrsep(nl, iter);
bool errored = false;
while (!errored && start_piece != nl.end()) {
switch (i) {
case 0: {
if (nl.compare(start_piece - nl.begin(), 2, "AF", 2) != 0) {
errored = true;
break;
}
break;
}
case 1: {
std::string piece(start_piece, iter);
aliasflen[j] =
(unsigned short)decode_flags(&(aliasf[j]), piece, af, /* arena = */ true);
std::sort(aliasf[j], aliasf[j] + aliasflen[j]);
break;
}
default:
break;
}
++i;
start_piece = mystrsep(nl, iter);
}
}
if (!aliasf[j]) {
for (int k = 0; k < j; ++k) {
arena_free(aliasf[k]);
}
arena_free(aliasf);
arena_free(aliasflen);
aliasf = NULL;
aliasflen = NULL;
numaliasf = 0;
HUNSPELL_WARNING(stderr, "error: line %d: table is corrupt\n",
af->getlinenum());
return false;
}
}
return true;
}
int HashMgr::is_aliasf() const {
return (aliasf != NULL);
}
int HashMgr::get_aliasf(int index, unsigned short** fvec, FileMgr* af) const {
if ((index > 0) && (index <= numaliasf)) {
*fvec = aliasf[index - 1];
return aliasflen[index - 1];
}
HUNSPELL_WARNING(stderr, "error: line %d: bad flag alias index: %d\n",
af->getlinenum(), index);
*fvec = NULL;
return 0;
}
/* parse morph alias definitions */
bool HashMgr::parse_aliasm(const std::string& line, FileMgr* af) {
if (numaliasm != 0) {
HUNSPELL_WARNING(stderr, "error: line %d: multiple table definitions\n",
af->getlinenum());
return false;
}
int i = 0;
int np = 0;
std::string::const_iterator iter = line.begin();
std::string::const_iterator start_piece = mystrsep(line, iter);
while (start_piece != line.end()) {
switch (i) {
case 0: {
np++;
break;
}
case 1: {
numaliasm = atoi(std::string(start_piece, iter).c_str());
if (numaliasm < 1) {
HUNSPELL_WARNING(stderr, "error: line %d: bad entry number\n",
af->getlinenum());
return false;
}
aliasm = (char**)arena_alloc(numaliasm * sizeof(char*));
if (!aliasm) {
numaliasm = 0;
return false;
}
np++;
break;
}
default:
break;
}
++i;
start_piece = mystrsep(line, iter);
}
if (np != 2) {
numaliasm = 0;
arena_free(aliasm);
aliasm = NULL;
HUNSPELL_WARNING(stderr, "error: line %d: missing data\n",
af->getlinenum());
return false;
}
/* now parse the numaliasm lines to read in the remainder of the table */
for (int j = 0; j < numaliasm; j++) {
std::string nl;
aliasm[j] = NULL;
if (af->getline(nl)) {
mychomp(nl);
iter = nl.begin();
i = 0;
start_piece = mystrsep(nl, iter);
bool errored = false;
while (!errored && start_piece != nl.end()) {
switch (i) {
case 0: {
if (nl.compare(start_piece - nl.begin(), 2, "AM", 2) != 0) {
errored = true;
break;
}
break;
}
case 1: {
// add the remaining of the line
std::string::const_iterator end = nl.end();
std::string chunk(start_piece, end);
if (complexprefixes) {
if (utf8)
reverseword_utf(chunk);
else
reverseword(chunk);
}
size_t sl = chunk.length() + 1;
aliasm[j] = (char*)arena_alloc(sl);
if (aliasm[j]) {
memcpy(aliasm[j], chunk.c_str(), sl);
}
break;
}
default:
break;
}
++i;
start_piece = mystrsep(nl, iter);
}
}
if (!aliasm[j]) {
numaliasm = 0;
for (int k = 0; k < j; ++k) {
arena_free(aliasm[k]);
}
arena_free(aliasm);
aliasm = NULL;
HUNSPELL_WARNING(stderr, "error: line %d: table is corrupt\n",
af->getlinenum());
return false;
}
}
return true;
}
int HashMgr::is_aliasm() const {
return (aliasm != NULL);
}
char* HashMgr::get_aliasm(int index) const {
if ((index > 0) && (index <= numaliasm))
return aliasm[index - 1];
HUNSPELL_WARNING(stderr, "error: bad morph. alias index: %d\n", index);
return NULL;
}
/* parse in the typical fault correcting table */
bool HashMgr::parse_reptable(const std::string& line, FileMgr* af) {
if (!reptable.empty()) {
HUNSPELL_WARNING(stderr, "error: line %d: multiple table definitions\n",
af->getlinenum());
return false;
}
int numrep = -1;
int i = 0;
int np = 0;
std::string::const_iterator iter = line.begin();
std::string::const_iterator start_piece = mystrsep(line, iter);
while (start_piece != line.end()) {
switch (i) {
case 0: {
np++;
break;
}
case 1: {
numrep = atoi(std::string(start_piece, iter).c_str());
if (numrep < 1) {
HUNSPELL_WARNING(stderr, "error: line %d: incorrect entry number\n",
af->getlinenum());
return false;
}
reptable.reserve(numrep);
np++;
break;
}
default:
break;
}
++i;
start_piece = mystrsep(line, iter);
}
if (np != 2) {
HUNSPELL_WARNING(stderr, "error: line %d: missing data\n",
af->getlinenum());
return false;
}
/* now parse the numrep lines to read in the remainder of the table */
for (int j = 0; j < numrep; ++j) {
std::string nl;
reptable.push_back(replentry());
int type = 0;
if (af->getline(nl)) {
mychomp(nl);
iter = nl.begin();
i = 0;
start_piece = mystrsep(nl, iter);
bool errored = false;
while (!errored && start_piece != nl.end()) {
switch (i) {
case 0: {
if (nl.compare(start_piece - nl.begin(), 3, "REP", 3) != 0) {
errored = true;
break;
}
break;
}
case 1: {
if (*start_piece == '^')
type = 1;
reptable.back().pattern.assign(start_piece + type, iter);
mystrrep(reptable.back().pattern, "_", " ");
if (!reptable.back().pattern.empty() && reptable.back().pattern[reptable.back().pattern.size() - 1] == '$') {
type += 2;
reptable.back().pattern.resize(reptable.back().pattern.size() - 1);
}
break;
}
case 2: {
reptable.back().outstrings[type].assign(start_piece, iter);
mystrrep(reptable.back().outstrings[type], "_", " ");
break;
}
default:
break;
}
++i;
start_piece = mystrsep(nl, iter);
}
}
if (reptable.back().pattern.empty() || reptable.back().outstrings[type].empty()) {
HUNSPELL_WARNING(stderr, "error: line %d: table is corrupt\n",
af->getlinenum());
reptable.clear();
return false;
}
}
return true;
}
// return replacing table
const std::vector<replentry>& HashMgr::get_reptable() const {
return reptable;
}
void* HashMgr::arena_alloc(int num_bytes) {
static const int MIN_CHUNK_SIZE = 4096;
if (arena.empty() || (current_chunk_size - current_chunk_offset < num_bytes)) {
current_chunk_size = std::max(MIN_CHUNK_SIZE, num_bytes);
arena.push_back(std::make_unique<uint8_t[]>(current_chunk_size));
current_chunk_offset = 0;
}
uint8_t* ptr = &arena.back()[current_chunk_offset];
current_chunk_offset += num_bytes;
outstanding_arena_allocations++;
return ptr;
}
void HashMgr::arena_free(void* ptr) {
--outstanding_arena_allocations;
assert(outstanding_arena_allocations >= 0);
}