本文整理汇总了C#中LNode.ReplaceRecursive方法的典型用法代码示例。如果您正苦于以下问题：C# LNode.ReplaceRecursive方法的具体用法？C# LNode.ReplaceRecursive怎么用？C# LNode.ReplaceRecursive使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LNode的用法示例。
在下文中一共展示了LNode.ReplaceRecursive方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: GetSubstitutionVar
internal static Symbol GetSubstitutionVar(LNode expr, out LNode condition, out bool isParams, out bool refExistingVar)
{
condition = null;
isParams = false;
refExistingVar = false;
if (expr.Calls(S.Substitute, 1)) {
LNode id = expr.Args[0];
if (id.AttrNamed(S.Params) != null)
isParams = true;
else if (id.Calls(S.DotDotDot, 1) || id.Calls(S.DotDot, 1)) {
isParams = true;
id = id.Args[0];
}
if (id.AttrNamed(S.Ref) != null)
refExistingVar = true;
if (id.Calls(S.IndexBracks, 2)) {
condition = id.Args[1];
id = id.Args[0];
} else
while (id.Calls(S.And, 2)) {
condition = condition == null ? id.Args[1] : LNode.Call(CodeSymbols.And, LNode.List(id.Args[1], condition)).SetStyle(NodeStyle.Operator);
id = id.Args[0];
}
if (condition != null)
condition = condition.ReplaceRecursive(n => n.IsIdNamed(S._HashMark) ? id : null);
if (!id.IsId)
return null;
return id.Name;
}
return null;
}示例2: ReplaceCaptures
static LNode ReplaceCaptures(LNode node, MMap<Symbol, LNode> captures)
{
if (captures.Count != 0)
{
// TODO: EXPAND SPLICES! Generally it works anyway though because
// the macro processor has built-in support for #splice.
return node.ReplaceRecursive(n => {
LNode sub, cap;
if (n.Calls(S.Substitute, 1) && (sub = n.Args.Last).IsId && captures.TryGetValue(sub.Name, out cap))
return cap;
return null;
});
}
return node;
}示例3: GetSubstitutionVar
internal static Symbol GetSubstitutionVar(LNode expr, out LNode condition, out bool isParams, out bool refExistingVar)
{
condition = null;
isParams = false;
refExistingVar = false;
if (expr.Calls(S.Substitute, 1)) {
LNode id = expr.Args[0];
if (id.AttrNamed(S.Params) != null)
isParams = true;
else if (id.Calls(S.DotDot, 1)) {
isParams = true;
id = id.Args[0];
}
if (id.AttrNamed(S.Ref) != null)
refExistingVar = true;
if (id.Calls(S.IndexBracks, 2)) {
condition = id.Args[1];
id = id.Args[0];
} else if (id.ArgCount == 1) {
condition = id.Args[0];
id = id.Target;
}
if (condition != null)
condition = condition.ReplaceRecursive(n => n.IsIdNamed(S._HashMark) ? id : null);
if (!id.IsId)
return null;
return id.Name;
}
return null;
}示例4: ScanForVariables
private static Dictionary<Symbol, LNode> ScanForVariables(LNode code)
{
var nameTable = new Dictionary<Symbol, LNode>();
code.ReplaceRecursive(n =>
{
if (n.IsId)
nameTable[n.Name] = n;
else {
LNode id = LNodeExt.GetCaptureIdentifier(n);
if (id != null) {
if (!nameTable.ContainsKey(n.Name))
nameTable[id.Name] = n;
return n;
}
}
return null;
});
return nameTable;
}示例5: ReplaceCaptures
/// <summary>Finds capture variables like <c>$x</c> and replaces them with values
/// from <c>captures</c> (e.g. <c>captures[(Symbol)"x"]</c> for <c>$x</c>)</summary>
public static LNode ReplaceCaptures(LNode outputSpec, MMap<Symbol, LNode> captures)
{
if (captures.Count != 0)
{
// TODO: EXPAND SPLICES! Generally it works anyway though because
// the macro processor has built-in support for #splice.
return outputSpec.ReplaceRecursive(n => {
LNode id, cap;
if ((id = LNodeExt.GetCaptureIdentifier(n)) != null) {
if (captures.TryGetValue(id.Name, out cap))
return cap;
}
return null;
});
}
return outputSpec;
}示例6: VisitCode
void VisitCode(Pred pred, LNode code)
{
if (code == null) return;
code.ReplaceRecursive(node => {
if (node.Calls(S.Substitute, 1)) {
var arg = node.Args[0];
PredsUsingSubstitution.Add(pred);
if (arg.IsId && _rules.ContainsKey(arg.Name))
RulesReferenced.Add(_rules[arg.Name]);
else
OtherReferences[arg] = 0;
}
return null; // search only, no replace
});
}示例7: ReplaceSubstitutionsIn
LNode ReplaceSubstitutionsIn(LNode code)
{
if (code == null) return null;
return code.ReplaceRecursive(node =>
{
if (node.Calls(S.Substitute, 1))
{ // found $subst_expr
var label = node.Args[0];
if (label.IsId)
{
if (_data.ProperLabels.ContainsKey(label.Name))
return label;
else if (_rules.ContainsKey(label.Name))
return F.Id(PickVarNameForRuleName(label.Name));
}
if (_data.OtherReferences.TryGetValue(label, -1) > 0)
{
return F.Id(PickVarNameForLNode(label));
}
// Do not change the code in other cases (e.g. the code
// block might contain $LI/$LA, handled in a later stage)
}
return null;
});
}