File indexing completed on 2024-05-12 04:02:17

 /*
     SPDX-FileCopyrightText: 2016 Volker Krause <vkrause@kde.org>
     SPDX-FileCopyrightText: 2020 Jonathan Poelen <jonathan.poelen@gmail.com>
 
     SPDX-License-Identifier: MIT
 */
 
 #include "context_p.h"
 #include "definition_p.h"
 #include "format.h"
 #include "ksyntaxhighlighting_logging.h"
 #include "repository.h"
 #include "rule_p.h"
 #include "xml_p.h"
 
 #include <QString>
 #include <QXmlStreamReader>
 
 using namespace KSyntaxHighlighting;
 
 Context::Context(const DefinitionData &def, const HighlightingContextData &data)
     : m_name(data.name)
     , m_attributeFormat(data.attribute.isEmpty() ? Format() : def.formatByName(data.attribute))
     , m_indentationBasedFolding(!data.noIndentationBasedFolding && def.indentationBasedFolding)
 {
     if (!data.attribute.isEmpty() && !m_attributeFormat.isValid()) {
         qCWarning(Log) << "Context: Unknown format" << data.attribute << "in context" << m_name << "of definition" << def.name;
     }
 }
 
 bool Context::indentationBasedFoldingEnabled() const
 {
     return m_indentationBasedFolding;
 }
 
 void Context::resolveContexts(DefinitionData &def, const HighlightingContextData &data)
 {
     m_lineEndContext.resolve(def, data.lineEndContext);
     m_lineEmptyContext.resolve(def, data.lineEmptyContext);
     m_fallthroughContext.resolve(def, data.fallthroughContext);
     m_stopEmptyLineContextSwitchLoop = data.stopEmptyLineContextSwitchLoop;
 
     /**
      * line end context switches only when lineEmptyContext is #stay. This avoids
      * skipping empty lines after a line continuation character (see bug 405903)
      */
     if (m_lineEmptyContext.isStay()) {
         m_lineEmptyContext = m_lineEndContext;
     }
 
     m_rules.reserve(data.rules.size());
     for (const auto &ruleData : data.rules) {
         m_rules.push_back(Rule::create(def, ruleData, m_name));
         if (!m_rules.back()) {
             m_rules.pop_back();
         }
     }
 }
 
 void Context::resolveIncludes(DefinitionData &def)
 {
     if (m_resolveState == Resolved) {
         return;
     }
     if (m_resolveState == Resolving) {
         qCWarning(Log) << "Cyclic dependency!";
         return;
     }
 
     Q_ASSERT(m_resolveState == Unresolved);
     m_resolveState = Resolving; // cycle guard
 
     for (auto it = m_rules.begin(); it != m_rules.end();) {
         const IncludeRules *includeRules = it->get()->castToIncludeRules();
         if (!includeRules) {
             m_hasDynamicRule = m_hasDynamicRule || it->get()->isDynamic();
             ++it;
             continue;
         }
 
         Context *context = nullptr;
         DefinitionData *defData = &def;
 
         const auto &contextName = includeRules->contextName();
         const int idx = contextName.indexOf(QLatin1String("##"));
 
         if (idx == -1) { // local include
             context = def.contextByName(contextName);
         } else {
             auto definitionName = contextName.mid(idx + 2);
             auto includedDef = def.repo->definitionForName(definitionName);
             if (!includedDef.isValid()) {
                 qCWarning(Log) << "Unable to resolve external include rule for definition" << definitionName << "in" << def.name;
                 ++it;
                 continue;
             }
             defData = DefinitionData::get(includedDef);
             def.addImmediateIncludedDefinition(includedDef);
             defData->load();
             if (idx == 0) {
                 context = defData->initialContext();
             } else {
                 context = defData->contextByName(QStringView(contextName).left(idx));
             }
         }
 
         if (!context) {
             qCWarning(Log) << "Unable to resolve include rule for definition" << contextName << "in" << def.name;
             ++it;
             continue;
         }
 
         if (context == this) {
             qCWarning(Log) << "Unable to resolve self include rule for definition" << contextName << "in" << def.name;
             ++it;
             continue;
         }
 
         if (context->m_resolveState != Resolved) {
             context->resolveIncludes(*defData);
         }
 
         m_hasDynamicRule = m_hasDynamicRule || context->m_hasDynamicRule;
 
         /**
          * handle included attribute
          * transitive closure: we might include attributes included from somewhere else
          */
         if (includeRules->includeAttribute()) {
             m_attributeFormat = context->m_attributeFormat;
         }
 
         it = m_rules.erase(it);
         it = m_rules.insert(it, context->rules().begin(), context->rules().end());
         it += context->rules().size();
     }
 
     m_resolveState = Resolved;
 }