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AmigaOS Manual: Limits

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The current ARexx implementation has the following limits:

  • Length of Strings. Strings, symbol names, and value strings are limited to a maximum length of 65,535 bytes.
  • Length of Clauses. Clauses are limited to a maximum of 800 characters after removing comments and multiple blanks.
  • Nodes in Compound Names. Compound symbol names may include a maximum of 50 nodes, including the stem.
  • Arguments to Functions. Built-In and external functions are limited to a maximum of 15 arguments. There is no limit to the number of arguments that may be passed to an internal function.
  • Subexpression Nesting. The maximum nesting level for subexpressions is 32.