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naming-rules.md

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Identifier Naming Schemes

Variable and SUB-PROCEDURE naming scheme

Variables and SUB-PROCEDURE names follow the same naming rules. These names can't be empty and may consist of any character with few exceptions (listed below). Like statements, variable and SUB-PROCEDURE names in LDPL are not case sensitive.

  • Variable and SUB-PROCEDURE names cannot contain the character :, it is used for MAP and LIST accesses.
  • Variable and SUB-PROCEDURE names cannot contain the character ", it is used to delimit strings.
  • Variable and SUB-PROCEDURE names cannot contain spaces.
  • Variable and SUB-PROCEDURE names cannot be valid numbers (they may contain numbers, though).
  • Variable and SUB-PROCEDURE names cannot contain the character ( nor the character ) as these characters are used in mathematical expressions.
  • Variables and SUB-PROCEDUREs cannot be called CRLF, as it is internally turned into "\r\n".
  • Variables and SUB-PROCEDUREs cannot be called LF, as it is internally turned into "\r\n".
  • Variables and SUB-PROCEDUREs cannot be called + nor - nor * nor / as these characters are used in mathematical expressions.

LABEL naming scheme

Labels in LDPL can't be empty and may contain any character except spaces and ". LABELs can't be named CRLF nor LF for the same reasons explained in the section above.

External Identifier Naming Scheme

Please refer to this page.