Class NcExpressionDialectUtil

Namespace

Hi.NcParsers.EvaluationSyntaxs.Evaluation

Assembly

HiMech.dll

Dispatch helpers over NcExpressionDialect so shared syntaxes (VariableEvaluatorSyntax, the assignment/tag capture syntaxes) stay brand-agnostic: they hold a dialect value and route through here instead of hard-coding a parser type.

public static class NcExpressionDialectUtil

Inheritance

object

NcExpressionDialectUtil

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

IsVariableKey(NcExpressionDialect, string)

Cheap validity gate for variable keys entering the evaluator's lookup chain — rejects obviously-non-variable keys before the chain walk. Keys are produced by the dialect's own parser, so this is defensive.

public static bool IsVariableKey(NcExpressionDialect dialect, string key)

Parameters

dialect NcExpressionDialect

key string

Returns

bool

MakePrefixParser(NcExpressionDialect)

Materializes a dialect into the optional longest-valid-prefix hook the capture helpers take (GrabTagEqualsValue(ref string, IEnumerable<string>, ExpressionPrefixParser) / GrabTagAssignment(ref string, IEnumerable<string>, string, IEnumerable<string>, ExpressionPrefixParser)); null for None and for dialects without prefix support (legacy lexical capture).

public static ExpressionPrefixParser MakePrefixParser(NcExpressionDialect dialect)

Parameters

dialect NcExpressionDialect

Returns

ExpressionPrefixParser

TryParse(NcExpressionDialect, string, out NcExpr, out string)

Full-string parse in the given dialect (the whole source must be one expression). None always fails — callers on the None path never parse.

public static bool TryParse(NcExpressionDialect dialect, string source, out NcExpr expr, out string error)

Parameters

dialect NcExpressionDialect

source string

expr NcExpr

error string

Returns

bool

TryParsePrefix(NcExpressionDialect, string, out int)

Longest-valid-prefix parse for parser-delimited RHS capture. Only dialects that support prefix parsing return true; the Fanuc dialect keeps its lexical capture (no known ambiguity to fix) and reports false so callers use their legacy boundary.

public static bool TryParsePrefix(NcExpressionDialect dialect, string source, out int consumedLength)

Parameters

dialect NcExpressionDialect

source string

consumedLength int

Returns

bool

VariableRefRegex(NcExpressionDialect)

Regex matching this dialect's variable-reference tokens inside a raw RHS string. Used only for best-effort same-block forward-reference detection (VariableEvaluator–SameBlockForwardReference); expression evaluation itself goes through the dialect parser. The Siemens pattern covers R-parameters only — named/$ same-block forward references are vanishingly rare in CAM output and go unwarned.

public static Regex VariableRefRegex(NcExpressionDialect dialect)

Parameters

dialect NcExpressionDialect

Returns

Regex