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81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
#include "webcc/string.h"
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#include <random>
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#include "boost/algorithm/string/trim.hpp"
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namespace webcc {
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// Ref: https://stackoverflow.com/a/24586587
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std::string RandomString(std::size_t length) {
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static const char chrs[] =
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"0123456789"
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"abcdefghijklmnopqrstuvwxyz"
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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thread_local static std::mt19937 rg{ std::random_device{}() };
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thread_local static std::uniform_int_distribution<std::string::size_type>
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pick{ 0, sizeof(chrs) - 2 };
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std::string s;
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s.reserve(length);
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while (length--) {
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s += chrs[pick(rg)];
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}
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return s;
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}
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bool ToSizeT(const std::string& str, int base, std::size_t* size) {
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try {
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*size = static_cast<std::size_t>(std::stoul(str, 0, base));
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} catch (const std::exception&) {
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return false;
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}
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return true;
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}
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void Split(boost::string_view input, char delim, bool compress_token,
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std::vector<boost::string_view>* output) {
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std::size_t i = 0;
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std::size_t p = 0;
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i = input.find(delim);
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while (i != boost::string_view::npos) {
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output->emplace_back(input.substr(p, i - p));
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p = i + 1;
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if (compress_token) {
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while (input[p] == delim) {
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++p;
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}
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}
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i = input.find(delim, p);
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}
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output->emplace_back(input.substr(p, i - p));
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}
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bool SplitKV(const std::string& input, char delim, bool trim_spaces,
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std::string* key, std::string* value) {
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std::size_t pos = input.find(delim);
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if (pos == std::string::npos) {
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return false;
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}
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*key = input.substr(0, pos);
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*value = input.substr(pos + 1);
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if (trim_spaces) {
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boost::trim(*key);
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boost::trim(*value);
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}
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return true;
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}
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} // namespace webcc
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