Language Concepts

• Statements
  
• Names
  
• Constants
  
• Punctuation
  
• Comments
  
• Statement Sub-Groups
  
• Text Replacement and Insertion Statements
  
• Packages
  
• Modules
  
• Blocks
  
• BEGIN Blocks
  
• Variables
  
• Files
  
• Input and Output
  

Parent topic: Open PL/I Language Reference Manual

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