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syntax [2019/07/15 20:55] – neilssyntax [2019/12/09 08:40] (current) – [Comments] neils
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 ====== Syntax ====== ====== Syntax ======
  
-An **XC=BASIC** program is built from one or more plain ASCII text files that consist of lines, allowing only one statement per line.+An **XC=BASIC** program is built from one or more plain ASCII text files that consist of lines, allowing one or more statements per line.
  
-Each line may contain a statement, a label or both.+Each line may optionally contain a label and zero or more statements separated by a colon ('':''):
  
   label1: print "hello world"   label1: print "hello world"
   label2:   label2:
   print "hello again"   print "hello again"
 +  let x = 5 : print x : rem "these were more statements in a line"
 ===== Whitespace ===== ===== Whitespace =====
  
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 ===== Comments  ===== ===== Comments  =====
  
-The only way to add comments is the [[REM|REM]] statement.+The only way to add comments is the [[REM|REM]] statement. The ''REM'' keyword however has two aliases: the semicolon ('';'') and the single quote ('''''). 
 + 
 +    rem This is a comment 
 +    ' This is also a comment 
 +    ; This is also a comment
  
 ===== String literals ===== ===== String literals =====
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   print "{5}white text"   print "{5}white text"
      
 +Make sure to check the list of all [[petscii_escape_sequences|]].
 ===== Character literals ===== ===== Character literals =====
  
-A character enclosed in single quotes (''''') evaluates to its PETSCII code.  Escape sequences are supported in character literals as well.+Since version 1.2, a character enclosed in single quotes (''''') evaluates to its PETSCII code.  Escape sequences are supported in character literals as well.
  
 Example: Example: