escet/rail/factor.rr

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# Copyright (c) 2021 Contributors to the Eclipse Foundation
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# This program and the accompanying materials are made available under the terms
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# SPDX-License-Identifier: MIT
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Factor: [literal1] SQUOTE_STRING
      | [literal2] DQUOTE_STRING
      | [sub-diagram] PAROPEN Railroad PARCLOSE
      | [epsilon] PAROPEN PARCLOSE
      | [sub-rule] IDENTIFIER
      | [line-break] BSLASH_BSLASH
      ;