11. There are no reserved words in PL / I . A statement is terminated by a semi-colon. 12. The number of reserved words in a language has little to do with how powerful a language is. 13. The test command is not to be confused with the [ [ reserved word that was introduced with ksh88. 14. See Help : Magic words for a list of most of the reserved words .-- ( talk) 15. However, one stropping regime was to not strope the keywords, and instead have them simply be reserved words . 16. Few keywords in the language are reserved words since most are longer than six letters or are surrounded by periods. 17. In order to maximize the code that could be crammed into 4K of memory users could enter abbreviations for reserved words . 18. By contrast, names in a standard library but not built into the language are not considered reserved words or keywords. 19. To accommodate this possibility, the current specification may make these reserved words , even if they are not currently used. 20. As a reserved word , the string _ _ foo represents the identifier _ _ foo in the common identifier namespace.
