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Initial commit: ReclassX structured binary editor
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sysadmin
316
third_party/qscintilla/scintilla/src/Decoration.cpp
vendored
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316
third_party/qscintilla/scintilla/src/Decoration.cpp
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/** @file Decoration.cxx
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** Visual elements added over text.
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**/
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// Copyright 1998-2007 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#include <cstddef>
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#include <cstdlib>
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#include <cstring>
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#include <cstdio>
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#include <cstdarg>
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#include <stdexcept>
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#include <vector>
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#include <algorithm>
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#include <memory>
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#include "Platform.h"
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#include "Scintilla.h"
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#include "Position.h"
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#include "SplitVector.h"
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#include "Partitioning.h"
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#include "RunStyles.h"
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#include "Decoration.h"
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using namespace Scintilla;
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namespace {
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template <typename POS>
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class Decoration : public IDecoration {
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int indicator;
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public:
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RunStyles<POS, int> rs;
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explicit Decoration(int indicator_) : indicator(indicator_) {
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}
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~Decoration() override {
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}
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bool Empty() const override {
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return (rs.Runs() == 1) && (rs.AllSameAs(0));
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}
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int Indicator() const override {
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return indicator;
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}
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Sci::Position Length() const override {
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return rs.Length();
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}
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int ValueAt(Sci::Position position) const override {
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return rs.ValueAt(static_cast<POS>(position));
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}
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Sci::Position StartRun(Sci::Position position) const override {
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return rs.StartRun(static_cast<POS>(position));
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}
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Sci::Position EndRun(Sci::Position position) const override {
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return rs.EndRun(static_cast<POS>(position));
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}
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void SetValueAt(Sci::Position position, int value) override {
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rs.SetValueAt(static_cast<POS>(position), value);
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}
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void InsertSpace(Sci::Position position, Sci::Position insertLength) override {
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rs.InsertSpace(static_cast<POS>(position), static_cast<POS>(insertLength));
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}
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Sci::Position Runs() const override {
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return rs.Runs();
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}
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};
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template <typename POS>
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class DecorationList : public IDecorationList {
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int currentIndicator;
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int currentValue;
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Decoration<POS> *current; // Cached so FillRange doesn't have to search for each call.
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Sci::Position lengthDocument;
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// Ordered by indicator
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std::vector<std::unique_ptr<Decoration<POS>>> decorationList;
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std::vector<const IDecoration*> decorationView; // Read-only view of decorationList
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bool clickNotified;
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Decoration<POS> *DecorationFromIndicator(int indicator);
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Decoration<POS> *Create(int indicator, Sci::Position length);
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void Delete(int indicator);
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void DeleteAnyEmpty();
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void SetView();
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public:
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DecorationList();
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~DecorationList() override;
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const std::vector<const IDecoration*> &View() const override {
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return decorationView;
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}
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void SetCurrentIndicator(int indicator) override;
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int GetCurrentIndicator() const override { return currentIndicator; }
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void SetCurrentValue(int value) override;
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int GetCurrentValue() const override { return currentValue; }
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// Returns changed=true if some values may have changed
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FillResult<Sci::Position> FillRange(Sci::Position position, int value, Sci::Position fillLength) override;
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void InsertSpace(Sci::Position position, Sci::Position insertLength) override;
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void DeleteRange(Sci::Position position, Sci::Position deleteLength) override;
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void DeleteLexerDecorations() override;
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int AllOnFor(Sci::Position position) const override;
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int ValueAt(int indicator, Sci::Position position) override;
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Sci::Position Start(int indicator, Sci::Position position) override;
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Sci::Position End(int indicator, Sci::Position position) override;
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bool ClickNotified() const override {
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return clickNotified;
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}
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void SetClickNotified(bool notified) override {
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clickNotified = notified;
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}
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};
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template <typename POS>
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DecorationList<POS>::DecorationList() : currentIndicator(0), currentValue(1), current(nullptr),
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lengthDocument(0), clickNotified(false) {
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}
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template <typename POS>
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DecorationList<POS>::~DecorationList() {
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current = nullptr;
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}
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template <typename POS>
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Decoration<POS> *DecorationList<POS>::DecorationFromIndicator(int indicator) {
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for (const std::unique_ptr<Decoration<POS>> &deco : decorationList) {
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if (deco->Indicator() == indicator) {
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return deco.get();
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}
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}
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return nullptr;
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}
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template <typename POS>
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Decoration<POS> *DecorationList<POS>::Create(int indicator, Sci::Position length) {
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currentIndicator = indicator;
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std::unique_ptr<Decoration<POS>> decoNew = std::unique_ptr<Decoration<POS>>(new Decoration<POS>(indicator));
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decoNew->rs.InsertSpace(0, static_cast<POS>(length));
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typename std::vector<std::unique_ptr<Decoration<POS>>>::iterator it = std::lower_bound(
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decorationList.begin(), decorationList.end(), decoNew,
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[](const std::unique_ptr<Decoration<POS>> &a, const std::unique_ptr<Decoration<POS>> &b) {
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return a->Indicator() < b->Indicator();
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});
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typename std::vector<std::unique_ptr<Decoration<POS>>>::iterator itAdded =
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decorationList.insert(it, std::move(decoNew));
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SetView();
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return itAdded->get();
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}
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template <typename POS>
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void DecorationList<POS>::Delete(int indicator) {
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decorationList.erase(std::remove_if(decorationList.begin(), decorationList.end(),
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[indicator](const std::unique_ptr<Decoration<POS>> &deco) {
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return deco->Indicator() == indicator;
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}), decorationList.end());
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current = nullptr;
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SetView();
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}
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template <typename POS>
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void DecorationList<POS>::SetCurrentIndicator(int indicator) {
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currentIndicator = indicator;
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current = DecorationFromIndicator(indicator);
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currentValue = 1;
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}
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template <typename POS>
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void DecorationList<POS>::SetCurrentValue(int value) {
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currentValue = value ? value : 1;
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}
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template <typename POS>
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FillResult<Sci::Position> DecorationList<POS>::FillRange(Sci::Position position, int value, Sci::Position fillLength) {
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if (!current) {
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current = DecorationFromIndicator(currentIndicator);
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if (!current) {
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current = Create(currentIndicator, lengthDocument);
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}
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}
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// Converting result from POS to Sci::Position as callers not polymorphic.
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const FillResult<POS> frInPOS = current->rs.FillRange(static_cast<POS>(position), value, static_cast<POS>(fillLength));
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const FillResult<Sci::Position> fr { frInPOS.changed, frInPOS.position, frInPOS.fillLength };
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if (current->Empty()) {
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Delete(currentIndicator);
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}
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return fr;
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}
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template <typename POS>
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void DecorationList<POS>::InsertSpace(Sci::Position position, Sci::Position insertLength) {
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const bool atEnd = position == lengthDocument;
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lengthDocument += insertLength;
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for (const std::unique_ptr<Decoration<POS>> &deco : decorationList) {
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deco->rs.InsertSpace(static_cast<POS>(position), static_cast<POS>(insertLength));
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if (atEnd) {
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deco->rs.FillRange(static_cast<POS>(position), 0, static_cast<POS>(insertLength));
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}
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}
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}
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template <typename POS>
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void DecorationList<POS>::DeleteRange(Sci::Position position, Sci::Position deleteLength) {
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lengthDocument -= deleteLength;
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for (const std::unique_ptr<Decoration<POS>> &deco : decorationList) {
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deco->rs.DeleteRange(static_cast<POS>(position), static_cast<POS>(deleteLength));
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}
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DeleteAnyEmpty();
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if (decorationList.size() != decorationView.size()) {
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// One or more empty decorations deleted so update view.
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current = nullptr;
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SetView();
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}
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}
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template <typename POS>
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void DecorationList<POS>::DeleteLexerDecorations() {
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decorationList.erase(std::remove_if(decorationList.begin(), decorationList.end(),
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[](const std::unique_ptr<Decoration<POS>> &deco) {
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return deco->Indicator() < INDIC_CONTAINER;
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}), decorationList.end());
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current = nullptr;
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SetView();
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}
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template <typename POS>
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void DecorationList<POS>::DeleteAnyEmpty() {
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if (lengthDocument == 0) {
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decorationList.clear();
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} else {
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decorationList.erase(std::remove_if(decorationList.begin(), decorationList.end(),
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[](const std::unique_ptr<Decoration<POS>> &deco) {
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return deco->Empty();
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}), decorationList.end());
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}
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}
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template <typename POS>
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void DecorationList<POS>::SetView() {
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decorationView.clear();
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for (const std::unique_ptr<Decoration<POS>> &deco : decorationList) {
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decorationView.push_back(deco.get());
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}
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}
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template <typename POS>
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int DecorationList<POS>::AllOnFor(Sci::Position position) const {
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int mask = 0;
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for (const std::unique_ptr<Decoration<POS>> &deco : decorationList) {
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if (deco->rs.ValueAt(static_cast<POS>(position))) {
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if (deco->Indicator() < INDIC_IME) {
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mask |= 1 << deco->Indicator();
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}
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}
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}
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return mask;
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}
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template <typename POS>
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int DecorationList<POS>::ValueAt(int indicator, Sci::Position position) {
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const Decoration<POS> *deco = DecorationFromIndicator(indicator);
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if (deco) {
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return deco->rs.ValueAt(static_cast<POS>(position));
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}
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return 0;
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}
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template <typename POS>
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Sci::Position DecorationList<POS>::Start(int indicator, Sci::Position position) {
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const Decoration<POS> *deco = DecorationFromIndicator(indicator);
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if (deco) {
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return deco->rs.StartRun(static_cast<POS>(position));
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}
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return 0;
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}
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template <typename POS>
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Sci::Position DecorationList<POS>::End(int indicator, Sci::Position position) {
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const Decoration<POS> *deco = DecorationFromIndicator(indicator);
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if (deco) {
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return deco->rs.EndRun(static_cast<POS>(position));
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}
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return 0;
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}
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}
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namespace Scintilla {
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std::unique_ptr<IDecoration> DecorationCreate(bool largeDocument, int indicator) {
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if (largeDocument)
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return std::unique_ptr<Decoration<Sci::Position>>(new Decoration<Sci::Position>(indicator));
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else
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return std::unique_ptr<Decoration<int>>(new Decoration<int>(indicator));
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}
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std::unique_ptr<IDecorationList> DecorationListCreate(bool largeDocument) {
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if (largeDocument)
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return std::unique_ptr<DecorationList<Sci::Position>>(new DecorationList<Sci::Position>());
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else
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return std::unique_ptr<DecorationList<int>>(new DecorationList<int>());
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}
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}
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