# Syntax Highlighting for the acme directives

scopeName: 'source.assembly.6502.acme'
name: 'ACME Crossassembler'
filetypes: [
  'a'
  'asm'
]

patterns: [
  { include:  'source.6502-opcodes' }
  { include:  'source.6502x-opcodes' }
  { include: '#comments' }
  # directives
  { include: '#directives' }
  # symbols, constants, numbers
  { include: '#symbols' }
]

# Repository starts here ------------------------------------------------------

repository:
  # comments
  comments:
    patterns: [
      # semicolon comments
      {
        match:  ';.*$'
        name:   'comment.line.semicolon.acme'
      }
    ]

  # symbols
  symbols:
    patterns: [
      # Labels (at beginning of a line)
      {
        match: '^[A-Za-z\\._][A-Za-z0-9_:]*'
        name: 'entity.name.function.acme'
      }
      # this section hilights labels as variables: results in pretty colorful listings, maybe you like it
      # Labels inline
      # {
      #   match: '\\b[A-Za-z][A-Za-z0-9_:]*\\b'
      #   name:  'variable.language'
      # }
      # Register A (like in ASL A)
      {
        match: '\\b[aA]\\b'
        name: 'variable.language.register.acme'
      }
      # Registers X and Y (like in LDA $1000,X or LDA ($30),Y )
      {
        match: '(?<=,)([xXyY])\\b'
        name: 'variable.language.register.acme'
      }
      # strings
      {
        begin: '"'
        end: '"'
        endCaptures:
          0:
            name: 'punctuation.definition.string.end.acme'
        name: 'string.quoted.double.acme'
      }
      {
        begin: '\''
        end: '\''
        name: 'string.quoted.single.assembly.acme'
      }
      # absolut addressing/numbering (including lo/hibyte by < or >)
      {
        match: '\\#(\\>?\\<?\\(?\\$?\\w*\\)?|[^\\s]\\h?*)'
        name: 'constant.numeric.hex.acme'
      }
      # hex, prefixed with dollar ($) or 0x
      {
        match: '\\$\\h+|0x\\h+'
        name: 'constant.numeric.hex.acme'
      }
      # binary prefixed with %
      {
        match: '%[01]+|%[\\#\\.]+|0b[01]+|0b[\\#\\.]+'
        name: 'constant.numeric.binary.acme'
      }
      # Float
      {
        match: '\\d*\\.\\d+\\b'
        name: 'constant.numeric.float.acme'
      }
      # Decimal (but not float)
      {
        match: '\\b\\d+\\b'
        name: 'constant.numeric.decimal.acme'
      }
      # Cctal
      {
        match: '&([0-7]+)\\b'
        name: 'constant.numeric.octal.acme'
      }
    ]

  # assembler directives
  directives:
    patterns: [
      # File and Symbol Control (pseudos)
      {
        match:  '\\!(?i:source|src|pseudopc|zn|zone|to|bin(ary)?|symbollist|sl|initmem)\\b'
        name:   'support.function.pseudo.acme'
      }
      # Parsing Control (more pseudos)
      {
        match:  '\\!(?i:macro|cpu|al|as|rl|rs|8|by|byte|le16|be16|16|wo|word|le24|be24|24|le32|be32|32|hex|h|fill|fi|align|skip|ct|convtab|tx|text|pet|scr|scrxor|raw|address|addr)\\b'
        name:   'support.function.pseudo.acme'
      }
      # Conditional Control
      {
        match:  '\\!(?i:if|if(n)?def|for|do|set|warn|error|serious|eof|endoffile)\\b'
        name:   'keyword.control.conditional.acme'
      }
      {
        match:  '(?i:while|until|else)\\b'
        name:   'keyword.control.conditional.acme'
      }
      # Operators
      {
        match:  '\\!|\\+|\\-|\\/|\\*|<<|>>|&|\\||\\^|=|<|>|\\:|\\|\\|'
        name:   'keyword.operator'
      }
      # Operators II
      {
        match:  '\\b(?i:and|not|mod|sh[lr]|x?or|eq|u?[gl]t)\\b'
        name:   'keyword.operator.acme'
      }
    ]