mirror of
http://git.sesse.net/plocate
synced 2025-10-05 23:42:49 +02:00
63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
#include "needle.h"
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#include "options.h"
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#include "parse_trigrams.h"
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#include <assert.h>
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#include <fnmatch.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <utility>
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using namespace std;
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bool matches(const Needle &needle, const char *haystack)
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{
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if (needle.type == Needle::STRSTR) {
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return strstr(haystack, needle.str.c_str()) != nullptr;
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} else if (needle.type == Needle::GLOB) {
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int flags = ignore_case ? FNM_CASEFOLD : 0;
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return fnmatch(needle.str.c_str(), haystack, flags) == 0;
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} else {
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assert(needle.type == Needle::REGEX);
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return regexec(&needle.re, haystack, /*nmatch=*/0, /*pmatch=*/nullptr, /*flags=*/0) == 0;
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}
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}
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string unescape_glob_to_plain_string(const string &needle)
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{
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string unescaped;
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for (size_t i = 0; i < needle.size(); i += read_unigram(needle, i).second) {
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uint32_t ch = read_unigram(needle, i).first;
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assert(ch != WILDCARD_UNIGRAM);
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if (ch == PREMATURE_END_UNIGRAM) {
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fprintf(stderr, "Pattern '%s' ended prematurely\n", needle.c_str());
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exit(1);
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}
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unescaped.push_back(ch);
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}
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return unescaped;
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}
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regex_t compile_regex(const string &needle)
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{
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regex_t re;
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int flags = REG_NOSUB;
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if (ignore_case) {
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flags |= REG_ICASE;
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}
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if (use_extended_regex) {
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flags |= REG_EXTENDED;
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}
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int err = regcomp(&re, needle.c_str(), flags);
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if (err != 0) {
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char errbuf[256];
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regerror(err, &re, errbuf, sizeof(errbuf));
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fprintf(stderr, "Error when compiling regex '%s': %s\n", needle.c_str(), errbuf);
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exit(1);
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}
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return re;
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}
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