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@ r28396:ef195b601c72
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Location: cpp/openttd-patchpack/source/src/stringfilter.cpp
r28396:ef195b601c72
4.1 KiB
text/x-c
Fix: Pass townnameparts as parameter when testing townname based companyname. (#11685)
Length of returned string could vary and pass/fail the length check with a different
string than the final selection.
Length of returned string could vary and pass/fail the length check with a different
string than the final selection.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 | /*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file stringfilter.cpp Searching and filtering using a stringterm. */
#include "stdafx.h"
#include "core/alloc_func.hpp"
#include "string_func.h"
#include "strings_func.h"
#include "stringfilter_type.h"
#include "gfx_func.h"
#include "safeguards.h"
static const char32_t STATE_WHITESPACE = ' ';
static const char32_t STATE_WORD = 'w';
static const char32_t STATE_QUOTE1 = '\'';
static const char32_t STATE_QUOTE2 = '"';
/**
* Set the term to filter on.
* @param str Filter term
*/
void StringFilter::SetFilterTerm(const char *str)
{
this->word_index.clear();
this->word_index.shrink_to_fit();
this->word_matches = 0;
free(this->filter_buffer);
assert(str != nullptr);
char *dest = MallocT<char>(strlen(str) + 1);
this->filter_buffer = dest;
char32_t state = STATE_WHITESPACE;
const char *pos = str;
WordState *word = nullptr;
size_t len;
for (;; pos += len) {
char32_t c;
len = Utf8Decode(&c, pos);
if (c == 0 || (state == STATE_WORD && IsWhitespace(c))) {
/* Finish word */
if (word != nullptr) {
*(dest++) = '\0';
word = nullptr;
}
state = STATE_WHITESPACE;
if (c != 0) continue; else break;
}
if (state == STATE_WHITESPACE) {
/* Skip whitespace */
if (IsWhitespace(c)) continue;
state = STATE_WORD;
}
if (c == STATE_QUOTE1 || c == STATE_QUOTE2) {
if (state == c) {
/* Stop quoting */
state = STATE_WORD;
continue;
} else if (state == STATE_WORD) {
/* Start quoting */
state = c;
continue;
}
}
/* Add to word */
if (word == nullptr) {
word = &this->word_index.emplace_back(WordState{ dest, false });
}
memcpy(dest, pos, len);
dest += len;
}
}
/**
* Set the term to filter on.
* @param str Filter term
*/
void StringFilter::SetFilterTerm(const std::string &str)
{
this->SetFilterTerm(str.c_str());
}
/**
* Reset the matching state to process a new item.
*/
void StringFilter::ResetState()
{
this->word_matches = 0;
for (WordState &ws : this->word_index) {
ws.match = false;
}
}
/**
* Pass another text line from the current item to the filter.
*
* You can call this multiple times for a single item, if the filter shall apply to multiple things.
* Before processing the next item you have to call ResetState().
*
* @param str Another line from the item.
*/
void StringFilter::AddLine(const char *str)
{
if (str == nullptr) return;
bool match_case = this->case_sensitive != nullptr && *this->case_sensitive;
for (WordState &ws : this->word_index) {
if (!ws.match) {
if (this->locale_aware) {
if (match_case ? StrNaturalContains(str, ws.start) : StrNaturalContainsIgnoreCase(str, ws.start)) {
ws.match = true;
this->word_matches++;
}
} else {
if ((match_case ? strstr(str, ws.start) : strcasestr(str, ws.start)) != nullptr) {
ws.match = true;
this->word_matches++;
}
}
}
}
}
/**
* Pass another text line from the current item to the filter.
*
* You can call this multiple times for a single item, if the filter shall apply to multiple things.
* Before processing the next item you have to call ResetState().
*
* @param str Another line from the item.
*/
void StringFilter::AddLine(const std::string &str)
{
AddLine(str.c_str());
}
/**
* Pass another text line from the current item to the filter.
*
* You can call this multiple times for a single item, if the filter shall apply to multiple things.
* Before processing the next item you have to call ResetState().
*
* @param str Another line from the item.
*/
void StringFilter::AddLine(StringID str)
{
AddLine(GetString(str));
}
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