expressions field_length.ts

100% Statements 17/17

100% Branches 1/1

100% Functions 1/1

100% Lines 17/17

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1x import {seq, optPrio, altPrio, tok, regex as reg, Expression} from "../combi";
import {ParenLeft, ParenRightW, Plus} from "../../1_lexer/tokens";
import {SimpleFieldChain2} from ".";
import {IStatementRunnable} from "../statement_runnable";
 
export class FieldLength extends Expression {
  public getRunnable(): IStatementRunnable {
    const normal = seq(optPrio(tok(Plus)),
                       altPrio(reg(/^\d+$/), SimpleFieldChain2));
 
    const length = seq(tok(ParenLeft),
                       optPrio(altPrio(normal, "*")),
                       tok(ParenRightW));
 
    return length;
  }
}