mirror of https://github.com/tstack/lnav
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/**
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* Copyright (c) 2020, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "textfile_sub_source.hh"
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size_t textfile_sub_source::text_line_count()
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{
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size_t retval = 0;
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if (!this->tss_files.empty()) {
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std::shared_ptr<logfile> lf = this->current_file();
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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retval = lfo->lfo_filter_state.tfs_index.size();
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}
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return retval;
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}
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void textfile_sub_source::text_value_for_line(textview_curses &tc, int line,
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std::string &value_out,
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text_sub_source::line_flags_t flags)
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{
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if (!this->tss_files.empty()) {
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std::shared_ptr<logfile> lf = this->current_file();
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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auto read_result = lf->read_line(lf->begin() + lfo->lfo_filter_state.tfs_index[line]);
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if (read_result.isOk()) {
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value_out = to_string(read_result.unwrap());
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}
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}
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else {
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value_out.clear();
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}
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}
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void textfile_sub_source::text_attrs_for_line(textview_curses &tc, int row,
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string_attrs_t &value_out)
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{
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if (this->current_file() == nullptr) {
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return;
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}
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struct line_range lr;
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lr.lr_start = 0;
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lr.lr_end = -1;
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value_out.push_back(string_attr(lr, &logline::L_FILE, this->current_file().get()));
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}
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size_t textfile_sub_source::text_size_for_line(textview_curses &tc, int line,
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text_sub_source::line_flags_t flags)
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{
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size_t retval = 0;
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if (!this->tss_files.empty()) {
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std::shared_ptr<logfile> lf = this->current_file();
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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retval = lf->line_length(lf->begin() + lfo->lfo_filter_state.tfs_index[line]);
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}
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return retval;
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}
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void textfile_sub_source::to_front(const std::shared_ptr<logfile>& lf)
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{
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auto iter = std::find(this->tss_files.begin(),
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this->tss_files.end(),
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lf);
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if (iter != this->tss_files.end()) {
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this->tss_files.erase(iter);
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} else {
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iter = std::find(this->tss_hidden_files.begin(),
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this->tss_hidden_files.end(),
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lf);
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if (iter != this->tss_hidden_files.end()) {
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this->tss_hidden_files.erase(iter);
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lf->show();
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}
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}
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this->tss_files.push_front(lf);
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this->tss_view->reload_data();
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}
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void textfile_sub_source::rotate_left()
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{
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if (this->tss_files.size() > 1) {
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this->tss_files.push_back(this->tss_files.front());
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this->tss_files.pop_front();
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this->tss_view->reload_data();
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this->tss_view->redo_search();
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}
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}
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void textfile_sub_source::rotate_right()
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{
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if (this->tss_files.size() > 1) {
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this->tss_files.push_front(this->tss_files.back());
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this->tss_files.pop_back();
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this->tss_view->reload_data();
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this->tss_view->redo_search();
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}
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}
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void textfile_sub_source::remove(const std::shared_ptr<logfile>& lf)
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{
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auto iter = std::find(this->tss_files.begin(),
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this->tss_files.end(), lf);
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if (iter != this->tss_files.end()) {
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this->tss_files.erase(iter);
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detach_observer(lf);
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} else {
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iter = std::find(this->tss_hidden_files.begin(),
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this->tss_hidden_files.end(),
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lf);
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if (iter != this->tss_hidden_files.end()) {
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this->tss_hidden_files.erase(iter);
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detach_observer(lf);
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}
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}
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}
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void textfile_sub_source::push_back(const std::shared_ptr<logfile>& lf)
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{
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auto *lfo = new line_filter_observer(this->get_filters(), lf);
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lf->set_logline_observer(lfo);
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if (lf->is_visible()) {
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this->tss_files.push_back(lf);
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} else {
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this->tss_hidden_files.push_back(lf);
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}
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}
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void textfile_sub_source::text_filters_changed()
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{
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for (auto iter = this->tss_files.begin();
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iter != this->tss_files.end();) {
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if ((*iter)->is_visible()) {
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++iter;
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} else {
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this->tss_hidden_files.push_back(*iter);
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iter = this->tss_files.erase(iter);
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}
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}
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for (auto iter = this->tss_hidden_files.begin();
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iter != this->tss_hidden_files.end();) {
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if (!(*iter)->is_visible()) {
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++iter;
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} else {
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this->tss_files.push_back(*iter);
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iter = this->tss_hidden_files.erase(iter);
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}
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}
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std::shared_ptr<logfile> lf = this->current_file();
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if (lf == nullptr) {
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return;
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}
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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uint32_t filter_in_mask, filter_out_mask;
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lfo->clear_deleted_filter_state();
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lf->reobserve_from(lf->begin() + lfo->get_min_count(lf->size()));
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this->get_filters().get_enabled_mask(filter_in_mask, filter_out_mask);
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lfo->lfo_filter_state.tfs_index.clear();
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for (uint32_t lpc = 0; lpc < lf->size(); lpc++) {
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if (this->tss_apply_filters &&
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lfo->excluded(filter_in_mask, filter_out_mask, lpc)) {
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continue;
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}
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lfo->lfo_filter_state.tfs_index.push_back(lpc);
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}
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this->tss_view->redo_search();
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}
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int textfile_sub_source::get_filtered_count() const
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{
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std::shared_ptr<logfile> lf = this->current_file();
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int retval = 0;
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if (lf != nullptr) {
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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retval = lf->size() - lfo->lfo_filter_state.tfs_index.size();
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}
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return retval;
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}
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int textfile_sub_source::get_filtered_count_for(size_t filter_index) const
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{
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std::shared_ptr<logfile> lf = this->current_file();
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if (lf == nullptr) {
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return 0;
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}
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auto *lfo = (line_filter_observer *) lf->get_logline_observer();
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return lfo->lfo_filter_state.tfs_filter_hits[filter_index];
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}
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text_format_t textfile_sub_source::get_text_format() const
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{
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if (this->tss_files.empty()) {
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return text_format_t::TF_UNKNOWN;
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}
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return this->tss_files.front()->get_text_format();
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}
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