Method insert

subprojects/llama.cpp/common/peg-parser.cpp:124–138

    }

    void insert(const std::string & word) {
        size_t current = 0;
        for (unsigned char ch : word) {
            auto it = nodes[current].children.find(ch);
            if (it == nodes[current].children.end()) {
                size_t child = create_node();
                nodes[child].depth = nodes[current].depth + 1;
                nodes[current].children[ch] = child;
                current = child;
            } else {
                current = it->second;
            }
        }
        nodes[current].is_word = true;
    }
};

static std::pair<uint32_t, size_t> parse_hex_escape(const std::string & str, size_t pos, int hex_count) {