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/**
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* Copyright (c) 2007-2012, 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 <vector>
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#include <algorithm>
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#include "pcrepp.hh"
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#include "lnav_util.hh"
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#include "data_parser.hh"
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#include "ansi_scrubber.hh"
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#include "log_format.hh"
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#include "textview_curses.hh"
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#include "view_curses.hh"
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using namespace std;
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void text_filter::add_line(
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logfile_filter_state &lfs, logfile::const_iterator ll, shared_buffer_ref &line) {
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bool match_state = this->matches(*lfs.tfs_logfile, *ll, line);
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if (!ll->is_continued()) {
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this->end_of_message(lfs);
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}
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this->lf_message_matched = this->lf_message_matched || match_state;
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this->lf_lines_for_message += 1;
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}
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bookmark_type_t textview_curses::BM_USER("user");
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bookmark_type_t textview_curses::BM_SEARCH("search");
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bookmark_type_t textview_curses::BM_META("meta");
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string_attr_type textview_curses::SA_ORIGINAL_LINE("original_line");
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string_attr_type textview_curses::SA_BODY("body");
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string_attr_type textview_curses::SA_HIDDEN("hidden");
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string_attr_type textview_curses::SA_FORMAT("format");
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textview_curses::textview_curses()
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: tc_sub_source(NULL),
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tc_delegate(NULL),
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tc_selection_start(-1),
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tc_selection_last(-1),
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tc_selection_cleared(false),
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tc_hide_fields(true)
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{
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this->tc_follow_deadline.tv_sec = 0;
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this->tc_follow_deadline.tv_usec = 0;
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this->set_data_source(this);
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}
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textview_curses::~textview_curses()
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{ }
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void textview_curses::reload_data(void)
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{
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if (this->tc_sub_source != nullptr) {
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this->tc_sub_source->text_update_marks(this->tc_bookmarks);
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}
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listview_curses::reload_data();
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}
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void textview_curses::grep_begin(grep_proc<vis_line_t> &gp, vis_line_t start, vis_line_t stop)
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{
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require(this->tc_searching >= 0);
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this->tc_searching += 1;
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this->tc_search_action.invoke(this);
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bookmark_vector<vis_line_t> &search_bv = this->tc_bookmarks[&BM_SEARCH];
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if (start != -1) {
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auto pair = search_bv.equal_range(vis_line_t(start), vis_line_t(stop));
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for (auto mark_iter = pair.first;
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mark_iter != pair.second;
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++mark_iter) {
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this->set_user_mark(&BM_SEARCH, *mark_iter, false);
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}
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}
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listview_curses::reload_data();
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}
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void textview_curses::grep_end(grep_proc<vis_line_t> &gp)
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{
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this->tc_searching -= 1;
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this->tc_search_action.invoke(this);
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ensure(this->tc_searching >= 0);
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}
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void textview_curses::grep_match(grep_proc<vis_line_t> &gp,
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vis_line_t line,
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int start,
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int end)
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{
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this->tc_bookmarks[&BM_SEARCH].insert_once(vis_line_t(line));
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if (this->tc_sub_source != nullptr) {
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this->tc_sub_source->text_mark(&BM_SEARCH, line, true);
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}
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if (this->get_top() <= line && line <= this->get_bottom()) {
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listview_curses::reload_data();
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}
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}
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void textview_curses::listview_value_for_rows(const listview_curses &lv,
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vis_line_t row,
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vector<attr_line_t> &rows_out)
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{
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for (auto &al : rows_out) {
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this->textview_value_for_row(row, al);
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++row;
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}
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}
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bool textview_curses::handle_mouse(mouse_event &me)
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{
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unsigned long width;
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vis_line_t height;
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if (this->tc_selection_start == -1 &&
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listview_curses::handle_mouse(me)) {
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return true;
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}
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if (this->tc_delegate != nullptr &&
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this->tc_delegate->text_handle_mouse(*this, me)) {
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return true;
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}
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if (me.me_button != BUTTON_LEFT) {
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return false;
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}
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vis_line_t mouse_line(this->get_top() + me.me_y);
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if (mouse_line > this->get_bottom()) {
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mouse_line = this->get_bottom();
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}
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this->get_dimensions(height, width);
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switch (me.me_state) {
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case BUTTON_STATE_PRESSED:
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this->tc_selection_start = mouse_line;
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this->tc_selection_last = vis_line_t(-1);
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this->tc_selection_cleared = false;
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break;
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case BUTTON_STATE_DRAGGED:
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if (me.me_y <= 0) {
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this->shift_top(vis_line_t(-1));
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me.me_y = 0;
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mouse_line = this->get_top();
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}
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if (me.me_y >= height && this->get_top() < this->get_top_for_last_row()) {
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this->shift_top(vis_line_t(1));
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me.me_y = height;
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mouse_line = this->get_bottom();
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}
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if (this->tc_selection_last == mouse_line)
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break;
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if (this->tc_selection_last != -1) {
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this->toggle_user_mark(&textview_curses::BM_USER,
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this->tc_selection_start,
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this->tc_selection_last);
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}
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if (this->tc_selection_start == mouse_line) {
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this->tc_selection_last = vis_line_t(-1);
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}
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else {
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if (!this->tc_selection_cleared) {
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if (this->tc_sub_source != NULL) {
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this->tc_sub_source->text_clear_marks(&BM_USER);
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}
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this->tc_bookmarks[&BM_USER].clear();
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this->tc_selection_cleared = true;
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}
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this->toggle_user_mark(&BM_USER,
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this->tc_selection_start,
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mouse_line);
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this->tc_selection_last = mouse_line;
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}
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this->reload_data();
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break;
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case BUTTON_STATE_RELEASED:
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this->tc_selection_start = vis_line_t(-1);
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this->tc_selection_last = vis_line_t(-1);
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this->tc_selection_cleared = false;
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break;
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}
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return true;
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}
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void textview_curses::textview_value_for_row(vis_line_t row,
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attr_line_t &value_out)
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{
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view_colors &vc = view_colors::singleton();
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bookmark_vector<vis_line_t> &user_marks = this->tc_bookmarks[&BM_USER];
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string_attrs_t &sa = value_out.get_attrs();
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string &str = value_out.get_string();
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text_format_t source_format = this->tc_sub_source->get_text_format();
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intern_string_t format_name;
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this->tc_sub_source->text_value_for_line(*this, row, str);
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this->tc_sub_source->text_attrs_for_line(*this, row, sa);
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scrub_ansi_string(str, sa);
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struct line_range body, orig_line;
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body = find_string_attr_range(sa, &SA_BODY);
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if (body.lr_start == -1) {
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body.lr_start = 0;
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body.lr_end = str.size();
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}
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orig_line = find_string_attr_range(sa, &SA_ORIGINAL_LINE);
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if (!orig_line.is_valid()) {
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orig_line.lr_start = 0;
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orig_line.lr_end = str.size();
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}
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auto sa_iter = find_string_attr(sa, &SA_FORMAT);
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if (sa_iter != sa.end()) {
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format_name = sa_iter->to_string();
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}
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for (auto iter = this->tc_highlights.begin();
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iter != this->tc_highlights.end();
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iter++) {
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// XXX testing for '$search' here sucks
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bool internal_hl = iter->first[0] == '$'
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&& iter->first != "$search"
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&& iter->first != "$preview";
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if (iter->second.h_text_format != TF_UNKNOWN &&
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source_format != iter->second.h_text_format) {
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continue;
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}
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if (!iter->second.h_format_name.empty() &&
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iter->second.h_format_name != format_name) {
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continue;
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}
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iter->second.annotate(value_out, internal_hl ? body.lr_start : 0);
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}
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if (this->tc_hide_fields) {
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for (auto &sattr : sa) {
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if (sattr.sa_type == &SA_HIDDEN &&
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sattr.sa_range.length() > 3) {
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struct line_range &lr = sattr.sa_range;
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str.replace(lr.lr_start, lr.length(), "...");
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shift_string_attrs(sa, lr.lr_start + 1, -(lr.length() - 3));
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sattr.sa_type = &VC_GRAPHIC;
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sattr.sa_value.sav_int =
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vc.attrs_for_role(view_colors::VCR_HIDDEN) |
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ACS_BULLET | A_UNDERLINE;
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lr.lr_end = lr.lr_start + 3;
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for_each(sa.begin(), sa.end(), [&] (string_attr &attr) {
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if (attr.sa_type == &VC_STYLE &&
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attr.sa_range.lr_start == lr.lr_start) {
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attr.sa_type = NULL;
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}
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});
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}
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}
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}
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#if 0
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typedef std::map<std::string, view_colors::role_t> key_map_t;
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static key_map_t key_roles;
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data_scanner ds(str);
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data_parser dp(&ds);
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dp.parse();
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for (list<data_parser::element>::iterator iter = dp.dp_stack.begin();
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iter != dp.dp_stack.end();
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++iter) {
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view_colors &vc = view_colors::singleton();
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if (iter->e_token == DNT_PAIR) {
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list<data_parser::element>::iterator pair_iter;
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key_map_t::iterator km_iter;
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data_token_t value_token;
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struct line_range lr;
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string key;
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value_token =
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iter->e_sub_elements->back().e_sub_elements->front().e_token;
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if (value_token == DT_STRING) {
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continue;
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}
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lr.lr_start = iter->e_capture.c_begin;
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lr.lr_end = iter->e_capture.c_end;
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key = ds.get_input().get_substr(
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&iter->e_sub_elements->front().e_capture);
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if ((km_iter = key_roles.find(key)) == key_roles.end()) {
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key_roles[key] = vc.next_highlight();
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}
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/* fprintf(stderr, "key = %s\n", key.c_str()); */
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sa[lr].insert(make_string_attr("style",
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vc.attrs_for_role(key_roles[key])));
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pair_iter = iter->e_sub_elements->begin();
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++pair_iter;
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lr.lr_start = pair_iter->e_capture.c_begin;
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lr.lr_end = pair_iter->e_capture.c_end;
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sa[lr].insert(make_string_attr("style",
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COLOR_PAIR(view_colors::VC_WHITE) |
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A_BOLD));
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}
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}
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#endif
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if (binary_search(user_marks.begin(), user_marks.end(), row)) {
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sa.emplace_back(orig_line, &view_curses::VC_STYLE, A_REVERSE);
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}
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}
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