All files / src/abap/2_statements/expressions write_offset_length.ts

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import {regex as reg, Expression, opt, tok, alt, seq} from "../combi";
import {IStatementRunnable} from "../statement_runnable";
import {ParenLeft, ParenRightW, WParenLeft, ParenRight} from "../../1_lexer/tokens";
import {FieldChain} from "./field_chain";
 
export class WriteOffsetLength extends Expression {
  public getRunnable(): IStatementRunnable {
 
    const post = seq(alt(FieldChain, reg(/^[\d]+$/), reg(/^\*$/)), alt(tok(ParenRightW), tok(ParenRight)));
    const wlength = seq(tok(WParenLeft), post);
    const length = seq(tok(ParenLeft), post);
 
    const complex = alt(wlength,
                        seq(alt(FieldChain, reg(/^\/?[\w\d]+$/), "/"), opt(length)));
 
    const at = seq(opt("AT"), complex);
 
    return at;
  }
}