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Aegisub/aegisub/audio_karaoke.cpp

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// Copyright (c) 2005, 2006, 2007, Rodrigo Braz Monteiro, Niels Martin Hansen
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
///////////
// Headers
#include <wx/tokenzr.h>
#include "audio_karaoke.h"
#include "audio_display.h"
#include "audio_box.h"
#include "ass_dialogue.h"
#include "ass_override.h"
#include <algorithm>
////////////////////////
// Syllable constructor
KaraokeSyllable::KaraokeSyllable() {
length = 0;
position = 0;
display_w = 0;
display_x = 0;
tag = _T("\\k");
pending_splits.clear();
selected = false;
original_tagdata = 0;
}
///////////////
// Constructor
AudioKaraoke::AudioKaraoke(wxWindow *parent)
: wxWindow (parent,-1,wxDefaultPosition,wxSize(10,5),wxTAB_TRAVERSAL|wxBORDER_SUNKEN)
{
enabled = false;
splitting = false;
split_cursor_syl = -1;
curSyllable = 0;
diag = 0;
workDiag = 0;
}
//////////////
// Destructor
AudioKaraoke::~AudioKaraoke() {
delete workDiag;
}
//////////////////////
// Load from dialogue
bool AudioKaraoke::LoadFromDialogue(AssDialogue *_diag) {
// Make sure we're not in splitting-mode
if (splitting) {
// Commit by default, discarding the splits requires explicitly cancelling
// This doesn't seem to work when changing line in the grid, WHY?
EndSplit(true);
}
// Set dialogue
delete workDiag;
diag = _diag;
if (!diag) {
Refresh(false);
return false;
}
// Split
workDiag = new AssDialogue(diag->GetEntryData(), false);
workDiag->ParseASSTags();
must_rebuild = false;
bool hasKar = ParseDialogue(workDiag);
// No karaoke, autosplit
if (!hasKar) {
AutoSplit();
}
// Done
//if (curSyllable < 0) curSyllable = syllables.size()-1;
//if (curSyllable >= (signed) syllables.size()) curSyllable = 0;
//SetSelection(curSyllable);
//Refresh(false);
return !hasKar;
}
///////////////////////////////
// Calculate length of karaoke
AssOverrideTag * AudioKaraoke::GetKaraokeLength(AssDialogueBlockOverride *block) {
AssOverrideTag *tag, *len = 0;
size_t n = block->Tags.size();
for (size_t i=0;i<n;i++) {
tag = block->Tags.at(i);
if (tag->Name == _T("\\k") || tag->Name == _T("\\K") || tag->Name == _T("\\kf") || tag->Name == _T("\\ko")) {
len = tag;
}
}
return len;
}
////////////////////////////
// Gets tag of nth syllable
wxString AudioKaraoke::GetSyllableTag(AssDialogueBlockOverride *block,int n) {
return block->Tags.at(n)->Name;
}
////////////////////
// Writes line back
void AudioKaraoke::Commit() {
if (splitting) {
EndSplit(true);
}
wxString finalText = _T("");
KaraokeSyllable *syl;
size_t n = syllables.size();
if (must_rebuild) {
workDiag->ClearBlocks();
for (size_t i=0;i<n;i++) {
syl = &syllables.at(i);
finalText += wxString::Format(_T("{%s%i}"), syl->tag.c_str(), syl->length) + syl->contents;
}
workDiag->Text = finalText;
workDiag->ParseASSTags();
diag->Text = finalText;
} else {
wxLogDebug(_T("Updating karaoke without rebuild"));
for (size_t i = 0; i < n; i++) {
wxLogDebug(_T("Updating syllable %d"), i);
syl = &syllables.at(i);
wxLogDebug(_T("Syllable pointer: %p; tagdata pointer: %p; length: %d"), syl, syl->original_tagdata, syl->length);
syl->original_tagdata->SetInt(syl->length);
}
wxLogDebug(_T("Done updating syllables"));
workDiag->UpdateText();
workDiag->ClearBlocks();
workDiag->ParseASSTags();
diag->Text = workDiag->Text;
}
}
//////////////////
// Autosplit line
void AudioKaraoke::AutoSplit() {
// Get lengths
int timelen = (diag->End.GetMS() - diag->Start.GetMS())/10;
int letterlen = diag->Text.Length();
int round = letterlen / 2;
int curlen;
int acumLen = 0;
wxString newText;
// Parse words
wxStringTokenizer tkz(diag->Text,_T(" "),wxTOKEN_RET_DELIMS);
while (tkz.HasMoreTokens()) {
wxString token = tkz.GetNextToken();
curlen = (token.Length() * timelen + round) / letterlen;
acumLen += curlen;
if (acumLen > timelen) {
curlen -= acumLen - timelen;
acumLen = timelen;
}
newText += wxString::Format(_T("{\\k%i}"),curlen) + token;
}
// Load
must_rebuild = true;
AssDialogue newDiag(diag->GetEntryData());
newDiag.Text = newText;
//newDiag.ParseASSTags();
ParseDialogue(&newDiag);
}
//////////////////////////////////
// Parses text to extract karaoke
bool AudioKaraoke::ParseDialogue(AssDialogue *curDiag) {
// Wipe
syllables.clear();
// Prepare syllable data
AssDialogueBlock *block;
AssDialogueBlockOverride *override;
AssDialogueBlockPlain *plain;
KaraokeSyllable temp;
temp.contents = _T("");
int pos = 0;
temp.length = 0;
temp.position = 0;
curDiag->ParseASSTags();
size_t n = curDiag->Blocks.size();
bool foundOne = false;
bool foundBlock = false;
// Load syllable data
for (size_t i=0;i<n;i++) {
block = curDiag->Blocks.at(i);
override = AssDialogueBlock::GetAsOverride(block);
if (override) {
AssOverrideTag *len = GetKaraokeLength(override);
if (len) {
if (foundOne) syllables.push_back(temp);
foundOne = true;
foundBlock = true;
pos += temp.length;
temp.length = len->Params.at(0)->AsInt();
temp.position = pos;
temp.contents = _T("");
temp.tag = len->Name;
temp.original_tagdata = len->Params.at(0);
}
}
else {
plain = AssDialogueBlock::GetAsPlain(block);
temp.contents += plain->text;
if (plain->text != _T("")) foundOne = true;
}
}
// Empty?
if (curDiag->Text.IsEmpty()) {
temp.length = (curDiag->End.GetMS() - curDiag->Start.GetMS())/10;
temp.contents = curDiag->Text;
temp.position = 0;
foundBlock = true;
}
// Last syllable
if (foundBlock) syllables.push_back(temp);
return foundBlock;
curDiag->ClearBlocks();
}
////////////////
// Set syllable
void AudioKaraoke::SetSyllable(int n) {
if (n == -1) n = syllables.size()-1;
if (n >= (signed) syllables.size()) n = 0;
curSyllable = n;
startClickSyl = n;
SetSelection(n);
Refresh(false);
}
///////////////
// Event table
BEGIN_EVENT_TABLE(AudioKaraoke,wxWindow)
EVT_PAINT(AudioKaraoke::OnPaint)
EVT_SIZE(AudioKaraoke::OnSize)
EVT_MOUSE_EVENTS(AudioKaraoke::OnMouse)
END_EVENT_TABLE()
///////////////
// Paint event
void AudioKaraoke::OnPaint(wxPaintEvent &event) {
// Get dimensions
int w,h;
GetClientSize(&w,&h);
// Start Paint
wxPaintDC dc(this);
// Draw background
dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE)));
dc.SetPen(*wxTRANSPARENT_PEN);
dc.DrawRectangle(0,0,w,h);
// Set syllable font
wxFont curFont(9,wxFONTFAMILY_DEFAULT,wxFONTSTYLE_NORMAL,wxFONTWEIGHT_NORMAL,false,_T("Verdana"),wxFONTENCODING_SYSTEM); // FIXME, hardcoded font
dc.SetFont(curFont);
// Draw syllables
if (enabled) {
wxString temptext;
size_t syln = syllables.size();
int dx = 0;
int tw,th;
int delta;
int dlen;
for (size_t i=0;i<syln;i++) {
KaraokeSyllable &syl = syllables.at(i);
// Calculate text length
temptext = syl.contents;
// If we're splitting, every character must be drawn
if (!splitting) {
temptext.Trim(true);
temptext.Trim(false);
}
GetTextExtent(temptext,&tw,&th,NULL,NULL,&curFont);
delta = 0;
if (tw < 10) delta = 10 - tw;
dlen = tw + 8 + delta;
// Draw border
//dc.SetPen(wxPen(wxColour(0,0,0)));
dc.SetPen(*wxTRANSPARENT_PEN);
if (syl.selected && !splitting) {
dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT)));
dc.SetTextForeground(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT));
}
else {
dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNHIGHLIGHT)));
dc.SetTextForeground(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT));
}
dc.DrawRectangle(dx,0,dlen,h);
// Put syllable-end-marker after text
dc.SetPen(*wxBLACK_PEN);
//dc.DrawLine(dx, 0, dx, h);
dc.DrawLine(dx, 0, dx+1, 0);
dc.DrawLine(dx, h-1, dx+1, h-1);
dc.DrawLine(dx+dlen-1, 0, dx+dlen-1, h);
dc.DrawLine(dx+dlen-2, 0, dx+dlen-1, 0);
dc.DrawLine(dx+dlen-2, h-1, dx+dlen-1, h-1);
// Draw text
if (splitting) {
// Make sure the text position is more predictable in case of splitting
dc.DrawText(temptext,dx+4,(h-th)/2);
} else {
dc.DrawText(temptext,dx+(delta/2)+4,(h-th)/2);
}
// Draw pending splits
if (syl.pending_splits.size() > 0) {
wxArrayInt widths;
if (dc.GetPartialTextExtents(temptext, widths)) {
for (unsigned int i = 0; i < syl.pending_splits.size(); i++) {
dc.SetPen(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT));
int splitxpos = dx + 4;
// Handle splitters placed before first char in syllable; these are represented as -1
if (syl.pending_splits[i] >= 0) {
splitxpos += widths[syl.pending_splits[i]];
} else {
splitxpos += 0;
}
dc.DrawLine(splitxpos, 0, splitxpos, h);
}
} else {
wxLogError(_T("WTF? Failed to GetPartialTextExtents"));
}
}
if (splitting && split_cursor_syl == i /*&& split_cursor_x > 0*/) {
dc.SetPen(*wxRED);
dc.DrawLine(dx+4+split_cursor_x, 0, dx+4+split_cursor_x, h);
dc.SetPen(wxPen(wxColour(0,0,0)));
}
// Set syllable data
syl.display_x = dx;
syl.display_w = dlen;
// Increment dx
dx += dlen;
}
}
event.Skip();
}
//////////////
// Size event
void AudioKaraoke::OnSize(wxSizeEvent &event) {
Refresh(false);
}
///////////////
// Mouse event
void AudioKaraoke::OnMouse(wxMouseEvent &event) {
// Get coordinates
int x = event.GetX();
int y = event.GetY();
bool shift = event.m_shiftDown;
// Syllable selection mode
if (!splitting) {
int syl = GetSylAtX(x);
// Button pressed
if (event.LeftDown() || event.RightDown()) {
if (syl != -1) {
if (shift) {
SetSelection(syl,startClickSyl);
Refresh(false);
}
else {
SetSelection(syl);
startClickSyl = syl;
curSyllable = syl;
Refresh(false);
display->Update();
CaptureMouse();
}
}
}
// Dragging to make a selection
else if (event.Dragging() && (event.LeftIsDown() || event.RightIsDown())) {
if (syl < 0) syl = 0;
SetSelection(syl, startClickSyl);
Refresh(false);
}
// Released left button
else if (event.LeftUp()) {
ReleaseMouse();
}
// Released right button; make a menu for selecting \k type
else if (event.RightUp()) {
ReleaseMouse();
AudioKaraokeTagMenu menu(this);
PopupMenu(&menu);
}
}
// Karaoke syllable splitting mode
else {
int syli = GetSylAtX(x);
// Valid syllable
if (syli != -1) {
KaraokeSyllable &syl = syllables.at(syli);
// Get the widths after each character in the text
wxClientDC dc(this);
wxFont curFont(9,wxFONTFAMILY_DEFAULT,wxFONTSTYLE_NORMAL,wxFONTWEIGHT_NORMAL,false,_T("Verdana"),wxFONTENCODING_SYSTEM);
dc.SetFont(curFont);
wxArrayInt widths;
dc.GetPartialTextExtents(syl.contents, widths);
// Find the character closest to the mouse
int rx = x - syl.display_x - 4;
int split_cursor_char = -2;
split_cursor_syl = -1;
split_cursor_x = -1;
if (syl.contents.Len() > 0) {
int lastx = 0;
split_cursor_syl = syli;
for (unsigned int i = 0; i < widths.size(); i++) {
wxLogDebug(_T("rx=%d, lastx=%d, widths[i]=%d, i=%d, widths.size()=%d, syli=%d"), rx, lastx, widths[i], i, widths.size(), syli);
if (lastx - rx < widths[i] - rx) {
if (rx - lastx < widths[i] - rx) {
//wxLogDebug(_T("Found at PREV!"));
split_cursor_x = lastx;
split_cursor_char = i - 1;
break;
} else if (rx < widths[i]) {
//wxLogDebug(_T("Found at CURRENT!"));
split_cursor_x = widths[i];
split_cursor_char = i;
break;
}
}
lastx = widths[i];
}
// If no split-point was caught by the for-loop, it must be over the last character,
// ie. split at next-to-last position
if (split_cursor_x < 0) {
//wxLogDebug(_T("Emergency picking LAST!"));
split_cursor_x = widths[widths.size()-1];
split_cursor_char = widths.size() - 1;
}
}
// Do something if there was a click and we're at a valid position
if (event.LeftDown() && split_cursor_char >= -1) {
//wxLogDebug(_T("A click!"));
int num_removed = 0;
std::vector<int>::iterator i = syl.pending_splits.begin();
while (i != syl.pending_splits.end()) {
if (split_cursor_char == *i) {
//wxLogDebug(_T("Erasing entry"));
num_removed++;
syl.pending_splits.erase(i);
break;
} else {
i++;
}
}
if (num_removed == 0) {
syl.pending_splits.push_back(split_cursor_char);
}
}
}
// Invalid syllable (int syli = GetSylAtX(x); returned -1)
else {
split_cursor_syl = -1;
split_cursor_x = -1;
}
if (split_cursor_syl >= 0) {
Refresh(false);
}
}
}
//////////////////////////////
// Get Syllable at position X
int AudioKaraoke::GetSylAtX(int x) {
int dx,dw;
size_t syln = syllables.size();
for (size_t i=0;i<syln;i++) {
dx = syllables.at(i).display_x;
dw = syllables.at(i).display_w;
if (x >= dx && x < dx+dw) {
return i;
}
}
return -1;
}
/////////////////
// Set selection
void AudioKaraoke::SetSelection(int start,int end) {
// Default end
if (end == -1) end = start;
// Get min/max range
size_t min = start;
size_t max = end;
if (max < min) {
size_t temp = max;
max = min;
min = temp;
}
// Set values
bool state;
size_t syls = syllables.size();
int sels = 0;
for (size_t i=0;i<syls;i++) {
state = (i >= min && i <= max);
syllables.at(i).selected = state;
if (state) sels++;
}
// Set box buttons
box->SetKaraokeButtons(sels > 1,sels > 0);
}
//////////////////
// Join syllables
void AudioKaraoke::Join() {
// Variables
bool gotOne = false;
size_t syls = syllables.size();
KaraokeSyllable *curSyl;
int first = 0;
// Loop
for (size_t i=0;i<syls;i++) {
curSyl = &syllables.at(i);
if (curSyl->selected) {
if (!gotOne) {
gotOne = true;
first = i;
}
else {
syllables.at(i-1).length += curSyl->length;
syllables.at(i-1).contents += curSyl->contents;
syllables.erase(syllables.begin()+i);
i--;
syls--;
}
}
}
// Set selection
curSyllable = first;
// Update
must_rebuild = true;
display->NeedCommit = true;
display->Update();
Refresh(false);
}
////////////////////////
// Enter splitting-mode
void AudioKaraoke::BeginSplit() {
splitting = true;
split_cursor_syl = -1;
split_cursor_x = -1;
box->SetKaraokeButtons(false, true);
Refresh(false);
}
////////////////////////////////////////////
// Leave splitting-mode, committing changes
void AudioKaraoke::EndSplit(bool commit) {
splitting = false;
bool hasSplit = false;
for (unsigned int i = 0; i < syllables.size(); i ++) {
if (syllables[i].pending_splits.size() > 0) {
if (commit) {
SplitSyl(i);
hasSplit = true;
} else {
syllables[i].pending_splits.clear();
}
}
}
SetSelection(0);
// Update
if (hasSplit) {
must_rebuild = true;
display->NeedCommit = true;
display->Update();
}
// Always redraw, since the display is different in splitting mode
Refresh(false);
}
/////////////////////////////////////////////////
// Split a syllable using the pending_slits data
int AudioKaraoke::SplitSyl (unsigned int n) {
syllables.reserve(syllables.size() + syllables[n].pending_splits.size());
// Start by sorting the split points
std::sort(syllables[n].pending_splits.begin(),syllables[n].pending_splits.end());
wxString originalText = syllables[n].contents;
int originalDuration = syllables[n].length;
// Fixup the first syllable
syllables[n].contents = originalText.Mid(0, syllables[n].pending_splits[0] + 1);
syllables[n].length = originalDuration * syllables[n].contents.Length() / originalText.Length();
int curpos = syllables[n].position + syllables[n].length;
// For each split, make a new syllable
for (unsigned int i = 0; i < syllables[n].pending_splits.size(); i++) {
KaraokeSyllable temp;
if (i < syllables[n].pending_splits.size()-1) {
// in the middle
temp.contents = originalText.Mid(syllables[n].pending_splits[i]+1, syllables[n].pending_splits[i+1] - syllables[n].pending_splits[i]);
} else {
// the last one (take the rest)
temp.contents = originalText.Mid(syllables[n].pending_splits[i]+1);
}
temp.length = originalDuration * temp.contents.Length() / originalText.Length();
temp.position = curpos;
temp.tag = syllables[n].tag;
curpos += temp.length;
syllables.insert(syllables.begin()+n+i+1, temp);
}
// The total duration of the new syllables will be equal to or less than the original duration
// Fix this, so they'll always add up
// Use an unfair method, just adding 1 to each syllable one after another, until it's correct
int newDuration = 0;
for (unsigned int j = n; j < syllables[n].pending_splits.size()+n+1; j++) {
newDuration += syllables[j].length;
}
unsigned int k = n;
while (newDuration < originalDuration) {
syllables[k].length++;
k++;
if (k >= syllables.size()) {
k = n;
}
newDuration++;
}
// Prepare for return and clear pending splits
int numsplits = syllables[n].pending_splits.size();
syllables[n].pending_splits.clear();
return numsplits;
}
//////////////////////////////////
// Apply delta length to syllable
bool AudioKaraoke::SyllableDelta(int n,int delta,int mode) {
// Get syllable and next
KaraokeSyllable *curSyl=NULL,*nextSyl=NULL;
curSyl = &syllables.at(n);
int nkar = syllables.size();
if (n < nkar-1) {
nextSyl = &syllables.at(n+1);
}
// Get variables
int len = curSyl->length;
// Cap delta
int minLen = 0;
if (len + delta < minLen) delta = minLen-len;
if (mode == 0 && nextSyl && (nextSyl->length - delta) < minLen) delta = nextSyl->length - minLen;
// Apply
if (delta != 0) {
curSyl->length += delta;
// Normal mode
if (mode == 0 && nextSyl) {
nextSyl->length -= delta;
nextSyl->position += delta;
}
// Shift mode
if (mode == 1) {
for (int i=n+1;i<nkar;i++) {
syllables.at(i).position += delta;
}
}
// Flag update
return true;
}
return false;
}
////////////////////////////////
// Karaoke tag menu constructor
AudioKaraokeTagMenu::AudioKaraokeTagMenu(AudioKaraoke *_kara)
: wxMenu(_("Karaoke tag"))
, kara(_kara)
{
// Create menu items
AppendCheckItem(10001, _T("\\k"), _("Change karaoke tag to \\k"));
AppendCheckItem(10002, _T("\\kf / \\K"), _("Change karaoke tag to \\kf"));
AppendCheckItem(10003, _T("\\ko"), _("Change karaoke tag to \\ko"));
// Find out what kinds of tags are in use atm
for (size_t i = 0; i < kara->syllables.size(); i++) {
KaraokeSyllable &syl = kara->syllables[i];
if (syl.selected) {
if (syl.tag == _T("\\k")) {
Check(10001, true);
} else if (syl.tag == _T("\\kf") || syl.tag == _T("\\K")) {
Check(10002, true);
} else if (syl.tag == _T("\\ko")) {
Check(10003, true);
}
}
}
}
///////////////////////////////
// Karaoke tag menu destructor
AudioKaraokeTagMenu::~AudioKaraokeTagMenu() {
}
///////////////
// Event table
BEGIN_EVENT_TABLE(AudioKaraokeTagMenu,wxMenu)
EVT_MENU_RANGE(10001, 10003, AudioKaraokeTagMenu::OnSelectItem)
END_EVENT_TABLE()
//////////////////////////////////
// Karaoke tag menu event handler
void AudioKaraokeTagMenu::OnSelectItem(wxCommandEvent &event) {
// Select the new tag for the syllables
wxString newtag;
switch (event.GetId()) {
case 10001: newtag = _T("\\k"); break;
case 10002: newtag = _T("\\kf"); break;
case 10003: newtag = _T("\\ko"); break;
default: return;
}
// Apply it
size_t firstsel = kara->syllables.size();
int lastsel = -1;
for (size_t i = 0; i < kara->syllables.size(); i++) {
KaraokeSyllable &syl = kara->syllables[i];
if (syl.selected) {
if (firstsel > i) firstsel = i;
lastsel = i;
syl.tag = newtag;
}
}
// Update display
kara->must_rebuild = true;
//kara->Commit();
kara->display->NeedCommit = true;
kara->display->CommitChanges();
//kara->display->Update();
kara->SetSelection(firstsel, lastsel);
}
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