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syntax [2019/07/08 11:31] – [Case sensitivity] neilssyntax [2019/08/25 19:24] – [Syntax] neils
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 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 only one statement per line.
  
-Each line may contain a statement, a label or both.+Each line may contain a label, a statement, or both:
  
   label1: print "hello world"   label1: print "hello world"
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 Keywords may be written in lowercase or uppercase as well. All identifiers (variable names, procedure names, etc.) can be mixed-case and are case sensitive by default. Keywords may be written in lowercase or uppercase as well. All identifiers (variable names, procedure names, etc.) can be mixed-case and are case sensitive by default.
  
-If the ''civars'' [[compiler_options|compiler option]] is turned on, variable names are treated cas insensitive. This only applies to variable names. Labels and other identifiers are case sensitive.+If the ''civars'' [[compiler_options|compiler option]] is turned on, variable names are treated insensitive. This only applies to variable names. Labels and other identifiers are case sensitive.
  
 ===== Identifiers ===== ===== Identifiers =====
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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 =====
  
 +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:
 +
 +  print 'a' + 1
 +  rem -- will output: 66
 +  print '{white}'
 +  rem -- will output: 5