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Log message if creating regex fails

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This commit is contained in:
Jacob Dufault 2017-05-21 14:00:48 -07:00
parent 864ff122d8
commit 89b34a359c
2 changed files with 33 additions and 11 deletions
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33
src/match.cc
View File

@ -1,8 +1,10 @@
#include "match.h"
#include <doctest/doctest.h>
#include <iostream>
Matcher::Matcher(const std::string& search) {
// static
optional<Matcher> Matcher::Create(const std::string& search) {
/*
std::string real_search;
real_search.reserve(search.size() * 3 + 2);
@ -13,13 +15,22 @@ Matcher::Matcher(const std::string& search) {
real_search += ".*";
*/
regex_string = search;
regex = std::regex(regex_string,
try {
Matcher m;
m.regex_string = search;
m.regex = std::regex(search,
std::regex_constants::ECMAScript |
std::regex_constants::icase |
std::regex_constants::optimize
//std::regex_constants::nosubs
);
return m;
}
catch (std::exception e) {
// TODO/FIXME: show a warning message, we need to access IpcManager so we can print it safely to stdout.
std::cerr << "Building matcher for " << search << " failed; " << e.what() << std::endl;
return nullopt;
}
}
bool Matcher::IsMatch(const std::string& value) const {
@ -31,10 +42,16 @@ bool Matcher::IsMatch(const std::string& value) const {
GroupMatch::GroupMatch(
const std::vector<std::string>& whitelist,
const std::vector<std::string>& blacklist) {
for (const std::string& entry : whitelist)
this->whitelist.push_back(Matcher(entry));
for (const std::string& entry : blacklist)
this->blacklist.push_back(Matcher(entry));
for (const std::string& entry : whitelist) {
optional<Matcher> m = Matcher::Create(entry);
if (m)
this->whitelist.push_back(*m);
}
for (const std::string& entry : blacklist) {
optional<Matcher> m = Matcher::Create(entry);
if (m)
this->blacklist.push_back(*m);
}
}
bool GroupMatch::IsMatch(const std::string& value, std::string* match_failure_reason) const {
@ -61,7 +78,7 @@ bool GroupMatch::IsMatch(const std::string& value, std::string* match_failure_re
TEST_SUITE("Matcher");
TEST_CASE("sanity") {
Matcher m("abc");
//Matcher m("abc");
// TODO: check case
//CHECK(m.IsMatch("abc"));
//CHECK(m.IsMatch("fooabc"));

9
src/match.h
View File

@ -1,11 +1,16 @@
#pragma once
#include <optional.h>
#include <regex>
#include <string.>
#include <string>
#include <vector>
using std::experimental::optional;
using std::experimental::nullopt;
struct Matcher {
Matcher(const std::string& search);
static optional<Matcher> Create(const std::string& search);
bool IsMatch(const std::string& value) const;