internal static Scope BuildBackgroundScope(SetOfSyntaxItems topItems)
{
Scope backgroundScope = new Scope();
backgroundScope.SyntaxItem = BackgroundItem.Instance;
backgroundScope.ActiveSyntaxItems = topItems;
backgroundScope.PosStart = 0;
backgroundScope.PosAfter = int.MaxValue;
backgroundScope.PosHighlightStart = 0;
backgroundScope.PosAfterHighlight = int.MaxValue;
return backgroundScope;
}
internal void StartNextGroup(Scope nextGroupScope)
{
this.m_scopeStack.Add(nextGroupScope);
}
internal void PushScope(Scope newScope)
{
SyntaxItem newTopItem = newScope.SyntaxItem;
bool previouslyExtending = this.TopScope.Extend;
bool previouslyWithinKeepEnd = this.TopScope.IsWithinKeepEnd;
if (this.TopScope.SyntaxItem is NextGroup) {
this.m_scopeStack[this.m_scopeStack.Count - 1] = newScope;
} else {
this.m_scopeStack.Add(newScope);
}
this.TopScope.Extend |= previouslyExtending && !previouslyWithinKeepEnd;
this.TopScope.IsWithinKeepEnd |= !this.TopScope.Extend && previouslyWithinKeepEnd;
if (!newTopItem.IsTransparent || newScope.IsRegionWithMatchGroupEnd) {
this.BuildHighlightModes(newScope.PosHighlightStart);
}
}
private Scope BuildNewScope(Scope currentTopScope)
{
Scope scope = new Scope();
scope.PosAfter = int.MaxValue;
scope.PosAfterHighlight = int.MaxValue;
scope.SyntaxItem = this;
scope.AsRegion = this;
scope.Extend = this.Extend;
scope.IsWithinKeepEnd = this.KeepEnd;
scope.ActiveSyntaxItems = this.GetMatchableItems(currentTopScope);
scope.IsRegion = true;
scope.AsRegion = this;
scope.IsRegionWithMatchGroupEnd = false;
for (int i = 0; i < this.m_endPatterns.Count; i++) {
if (this.m_endPatterns[i].HasHighlightMode) {
scope.IsRegionWithMatchGroupEnd = true;
break;
}
}
return scope;
}
internal bool TrySkips(Scanner s, Scope scope, int posMatchAt)
{
if (posMatchAt <= scope.PosEndSkippedUntil || scope.PosAfter != int.MaxValue) {
return false;
}
MatchResult result = new MatchResult();
result.MatchType = MatchType.RegionSkip;
for (int i = 0; i < this.m_skipPatterns.Count; i++) {
this.m_skipPatterns[i].Match(s, posMatchAt, scope.ExternalCaptures, ref result);
if (result.Success) {
if (result.PosAfterMatch <= s.PosWindowEnd) {
if ('\n' == s[result.PosAfterMatch]) {
result.PosAfterMatch++;
}
}
scope.PosEndSkippedUntil = result.PosAfterMatch - 1;
return true;
}
}
return false;
}
internal bool TryEnding(Scanner s, Scope scope)
{
int posMatchAt = s.Reader.PosCurrent;
if (posMatchAt <= scope.PosEndSkippedUntil || scope.PosAfter != int.MaxValue) {
return false;
}
if (this.TrySkips(s, scope, posMatchAt)) {
return false;
}
MatchResult result = new MatchResult();
result.MatchType = MatchType.RegionEnd;
for (int i = 0; i < this.m_endPatterns.Count; i++) {
this.m_endPatterns[i].Match(s, posMatchAt, scope.ExternalCaptures, ref result);
if (result.Success) {
scope.PosAfter = result.PosAfterMatch;
bool hasHighlightMode = this.m_endPatterns[i].HasHighlightMode;
if (0 == result.PosAfterRegion && hasHighlightMode) {
result.PosAfterRegion = result.PosMatchStart;
}
if (0 == result.PosAfterHighlight) {
result.PosAfterHighlight = result.PosAfterMatch;
}
if (hasHighlightMode && result.PosAfterRegion < result.PosAfterHighlight) {
s.SendMode(this.m_endPatterns[i].HighlightMode, result.PosAfterRegion);
}
if (result.PosAfterHighlight < result.PosAfterMatch) {
s.BuildHighlightModes(result.PosAfterHighlight);
}
return true;
}
}
return false;
}
internal SetOfSyntaxItems GetMatchableItems(Scope currentTopScope)
{
if (this.m_inheritActiveItemsFromTopScope) {
return currentTopScope.ActiveSyntaxItems;
}
return this.m_containedItems;
}
private Scope BuildNewScope(MatchResult result, Scope currentTopScope)
{
Scope scope = new Scope();
scope.PosMatchedAt = result.PosMatchedAt;
scope.PosStart = result.PosMatchStart;
scope.PosAfter = result.PosAfterMatch;
scope.PosHighlightStart = result.PosHighlightStart;
scope.PosAfterHighlight = result.PosAfterHighlight;
scope.SyntaxItem = this;
scope.Extend = this.Extend;
scope.EatNewLineInRegion = this.Pattern.EatNewLine;
scope.ActiveSyntaxItems = this.GetMatchableItems(currentTopScope);
return scope;
}