Function refreshSearch

tools/shell/linenoise.cpp:2682–2740

}

static void refreshSearch(struct linenoiseState* l) {
    std::string search_prompt;
    std::string no_matches_text = std::string(l->buf);
    std::string truncatedSearchText = "";
    bool no_matches = l->search_index >= l->search_matches.size();
    if (l->search_buf.empty()) {
        l->prev_search_match = l->buf;
        l->prev_search_match_history_index = history_len - 1 - l->history_index;
        search_prompt = "bck-i-search: _";
    } else {
        std::string search_text;
        std::string matches_text;
        search_text = l->search_buf;
        if (!no_matches) {
            search_prompt = "bck-i-search: ";
        } else {
            no_matches_text = std::string(l->prev_search_match);
            search_prompt = "failing-bck-i-search: ";
        }

        char* search_buf = (char*)search_text.c_str();
        size_t search_len = search_text.size();

        size_t cols = l->cols - search_prompt.length() - 1;

        size_t render_pos = 0;
        char emptyHighlightBuf[LINENOISE_MAX_LINE];
        truncateText(search_buf, search_len, search_len, cols, false, 0, render_pos,
            emptyHighlightBuf);
        truncatedSearchText = std::string(search_buf, search_len);
        search_prompt += truncatedSearchText;
        search_prompt += "_";
    }

    linenoiseState clone = *l;
    l->plen = search_prompt.size();
    if (no_matches) {
        // if there are no matches render the no_matches_text
        l->buf = (char*)no_matches_text.c_str();
        l->len = no_matches_text.size();
        l->pos = 0;
    } else {
        // if there are matches render the current history item
        auto search_match = l->search_matches[l->search_index];
        auto history_index = search_match.history_index;
        auto cursor_position = search_match.match_end;
        l->buf = history[history_index];
        l->len = strlen(history[history_index]);
        l->pos = cursor_position;
        l->prev_search_match = l->buf;
        l->prev_search_match_history_index = history_index;
    }
    refreshSearchMultiLine(l, search_prompt.c_str(), truncatedSearchText.c_str());

    l->buf = clone.buf;
    l->len = clone.len;
    l->pos = clone.pos;
    l->plen = clone.plen;