nes-pascal

Lexical diagnostics

Lexical diagnostics use the E1000-E1999 range.

E1000 - Unexpected character

• Category: Lexical Analysis
• Explanation: The source contains a character that is not part of the language token set.

• Trigger:

  program Demo; @
  

• Expected compiler output:

  E1000 demo.nsp:1:15
  
  Unexpected character: '@'.
  

• Suggested fix: Remove the character or replace it with supported syntax.

E1002 - Malformed hexadecimal literal

• Category: Lexical Analysis
• Explanation: The $ prefix is not followed by a hexadecimal digit.

• Trigger:

  Color := $;
  

• Expected compiler output:

  E1002 demo.nsp:1:10
  
  Hexadecimal literal has no digits after '$'.
  

• Suggested fix: Supply at least one hexadecimal digit, such as $00.