115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2020 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "utils.h"
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#include <utility>
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#include <stack>
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#include <cctype>
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int caseInsensitiveStringCompare(const std::string &lhs, const std::string &rhs)
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{
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if (lhs.size() != rhs.size())
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return (lhs.size() < rhs.size()) ? -1 : 1;
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for (unsigned int i = 0; i < lhs.size(); ++i) {
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const int c1 = std::toupper(lhs[i]);
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const int c2 = std::toupper(rhs[i]);
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if (c1 != c2)
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return (c1 < c2) ? -1 : 1;
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}
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return 0;
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}
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bool isValidGlobPattern(const std::string& pattern)
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{
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for (std::string::const_iterator i = pattern.begin(); i != pattern.end(); ++i) {
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if (*i == '*' || *i == '?') {
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std::string::const_iterator j = i + 1;
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if (j != pattern.end() && (*j == '*' || *j == '?')) {
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return false;
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}
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}
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}
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return true;
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}
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bool matchglob(const std::string& pattern, const std::string& name)
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{
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const char* p = pattern.c_str();
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const char* n = name.c_str();
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std::stack<std::pair<const char*, const char*> > backtrack;
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for (;;) {
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bool matching = true;
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while (*p != '\0' && matching) {
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switch (*p) {
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case '*':
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// Step forward until we match the next character after *
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while (*n != '\0' && *n != p[1]) {
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n++;
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}
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if (*n != '\0') {
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// If this isn't the last possibility, save it for later
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backtrack.push(std::make_pair(p, n));
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}
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break;
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case '?':
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// Any character matches unless we're at the end of the name
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if (*n != '\0') {
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n++;
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} else {
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matching = false;
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}
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break;
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default:
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// Non-wildcard characters match literally
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if (*n == *p) {
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n++;
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} else if (*n == '\\' && *p == '/') {
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n++;
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} else if (*n == '/' && *p == '\\') {
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n++;
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} else {
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matching = false;
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}
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break;
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}
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p++;
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}
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// If we haven't failed matching and we've reached the end of the name, then success
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if (matching && *n == '\0') {
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return true;
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}
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// If there are no other paths to try, then fail
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if (backtrack.empty()) {
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return false;
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}
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// Restore pointers from backtrack stack
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p = backtrack.top().first;
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n = backtrack.top().second;
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backtrack.pop();
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// Advance name pointer by one because the current position didn't work
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n++;
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}
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}
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