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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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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_PARTITION("partition");
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bookmark_type_t textview_curses::BM_SEARCH("search");
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string_attr_type textview_curses::SA_ORIGINAL_LINE;
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string_attr_type textview_curses::SA_BODY;
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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_searching(false),
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tc_follow_search(false),
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tc_selection_start(-1),
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tc_selection_last(-1)
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{
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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 != NULL) {
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this->tc_sub_source->text_update_marks(this->tc_bookmarks);
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}
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this->listview_curses::reload_data();
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}
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void textview_curses::grep_begin(grep_proc &gp)
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{
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this->tc_searching = true;
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this->tc_search_action.invoke(this);
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listview_curses::reload_data();
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}
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void textview_curses::grep_end(grep_proc &gp)
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{
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this->tc_searching = false;
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this->tc_search_action.invoke(this);
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}
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void textview_curses::grep_match(grep_proc &gp,
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grep_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 != NULL) {
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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_row(const listview_curses &lv,
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vis_line_t row,
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attr_line_t &value_out)
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{
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bookmark_vector<vis_line_t> &user_marks = this->tc_bookmarks[&BM_USER];
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bookmark_vector<vis_line_t> &part_marks = this->tc_bookmarks[&BM_PARTITION];
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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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highlight_map_t::iterator iter;
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string::iterator str_iter;
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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;
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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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for (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 '$search' here sucks
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bool internal_hl = iter->first[0] == '$' && iter->first != "$search";
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int off, hcount = 0;
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size_t re_end;
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if (body.lr_end > 8192)
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re_end = 8192;
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else
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re_end = body.lr_end;
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for (off = internal_hl ? body.lr_start : 0; off < (int)str.size(); ) {
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int rc, matches[60];
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rc = pcre_exec(iter->second.h_code,
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iter->second.h_code_extra,
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str.c_str(),
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re_end,
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off,
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0,
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matches,
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60);
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if (rc > 0) {
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struct line_range lr;
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if (rc == 2) {
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lr.lr_start = matches[2];
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lr.lr_end = matches[3];
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}
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else {
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lr.lr_start = matches[0];
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lr.lr_end = matches[1];
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}
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if (lr.lr_end > lr.lr_start) {
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sa.push_back(string_attr(
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lr, &view_curses::VC_STYLE, iter->second.get_attrs(hcount)));
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hcount++;
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off = matches[1];
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}
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else {
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off += 1;
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}
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}
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else {
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off = str.size();
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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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struct line_range lr(0);
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string_attrs_t::iterator iter;
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for (iter = sa.begin(); iter != sa.end(); iter++) {
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if (iter->sa_type == &view_curses::VC_STYLE) {
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iter->sa_value.sav_int ^= A_REVERSE;
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}
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}
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sa.push_back(string_attr(lr, &view_curses::VC_STYLE, A_REVERSE));
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}
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else if (binary_search(part_marks.begin(), part_marks.end(), row + 1)) {
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sa.push_back(string_attr(
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line_range(0), &view_curses::VC_STYLE, A_UNDERLINE));
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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 != NULL &&
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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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