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#include "config.h"
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#include <algorithm>
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#include "lnav_util.hh"
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#include "textview_curses.hh"
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using namespace std;
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bookmark_type_t textview_curses::BM_USER;
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bookmark_type_t textview_curses::BM_SEARCH;
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class ansi_scrubber {
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/* XXX move to view_curses.cc ; actually, move to it's own file and call
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* from there.
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*/
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public:
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static ansi_scrubber &singleton()
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{
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static ansi_scrubber s_as;
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return s_as;
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}
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void scrub_value(string &str, string_attrs_t &sa)
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{
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int rc, matches[60];
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do {
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rc = pcre_exec(this->as_pcre,
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NULL,
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str.c_str(),
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str.size(),
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0,
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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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int c_start = matches[0];
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int c_end = matches[1];
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struct line_range lr;
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bool has_attrs = false;
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int attrs = 0;
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int lpc;
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switch (str[matches[4]]) {
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case 'm':
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for (lpc = matches[2]; lpc != (int)string::npos && lpc < matches[3];) {
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int ansi_code = 0;
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if (sscanf(&(str[lpc]), "%d", &ansi_code) == 1) {
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switch (ansi_code) {
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case 1:
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attrs |= A_BOLD;
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break;
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case 2:
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attrs |= A_DIM;
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break;
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case 4:
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attrs |= A_UNDERLINE;
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break;
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case 7:
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attrs |= A_REVERSE;
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break;
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case 31:
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attrs |= COLOR_PAIR(view_colors::VC_RED);
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break;
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case 32:
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attrs |= COLOR_PAIR(view_colors::VC_GREEN);
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break;
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case 33:
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attrs |= COLOR_PAIR(view_colors::VC_YELLOW);
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break;
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case 34:
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attrs |= COLOR_PAIR(view_colors::VC_BLUE);
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break;
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case 35:
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attrs |= COLOR_PAIR(view_colors::VC_MAGENTA);
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break;
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case 36:
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attrs |= COLOR_PAIR(view_colors::VC_CYAN);
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break;
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case 37:
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attrs |= COLOR_PAIR(view_colors::VC_WHITE);
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break;
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}
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}
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lpc = str.find(";", lpc);
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if (lpc != (int)string::npos) {
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lpc += 1;
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}
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}
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has_attrs = true;
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break;
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case 'C':
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{
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int spaces = 0;
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if (sscanf(&(str[matches[2]]), "%d", &spaces) == 1) {
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str.insert(c_end, spaces, ' ');
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}
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}
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break;
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}
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str.erase(str.begin() + c_start, str.begin() + c_end);
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if (has_attrs) {
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lr.lr_start = c_start;
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lr.lr_end = -1;
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sa[lr].insert(make_string_attr("style", attrs));
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}
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}
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} while (rc > 0);
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};
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private:
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pcre *build_pcre(const char *pattern) /* XXX refactor me */
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{
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const char *errptr;
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pcre *retval;
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int eoff;
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retval = pcre_compile(pattern, 0, &errptr, &eoff, NULL);
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if (retval == NULL) {
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throw errptr;
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}
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return retval;
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};
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ansi_scrubber()
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{
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this->as_pcre = this->build_pcre("\x1b\\[([\\d=;]*)([a-zA-Z])");
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};
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pcre *as_pcre;
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};
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textview_curses::textview_curses()
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: tc_searching(false),
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tc_follow_search(false)
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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_match_count = 0;
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this->tc_bookmarks[&BM_SEARCH].clear();
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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_match_count += 1;
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this->tc_bookmarks[&BM_SEARCH].insert_once(vis_line_t(line));
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listview_curses::reload_data();
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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 &bv = 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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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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ansi_scrubber::singleton().scrub_value(str, sa);
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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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int off, hcount = 0;
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for (off = 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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NULL,
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str.c_str(),
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str.size(),
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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[lr].insert(make_string_attr("style", iter->second.
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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 (binary_search(bv.begin(), bv.end(), row)) {
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string_attrs_t::iterator iter;
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bool added = false;
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for (iter = sa.begin(); iter != sa.end(); iter++) {
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attrs_map_t &am = iter->second;
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attrs_map_t::iterator am_iter;
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for (am_iter = am.begin(); am_iter != am.end(); am_iter++) {
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if (am_iter->first == "style") {
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am_iter->second.sa_int ^= A_REVERSE;
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added = true;
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break;
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}
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}
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}
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if (!added) {
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struct line_range lr = { 0, -1 };
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sa[lr].insert(make_string_attr("style", A_REVERSE));
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}
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}
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}
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