# Adds Syntax highlighting for the Asar SNES Assembler

scopeName: 'source.assembly.65816.asar'
fileTypes: [
  'asm'
]
name: 'Asar SNES Assembler'
patterns: [
  { include: 'source.65816-opcodes' }
  { include: 'source.65816l-opcodes' }
  { include: 'source.65816alt-opcodes' }
  { include: 'source.spc700-opcodes' }
  { include: 'source.superfx-opcodes' }
  { include: '#comments' }
  { include: '#symbols' }
  { include: '#directives' }
]

# Repository starts here ------------------------------------------------------
repository:

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

  # symbols
  symbols:
    patterns: [
      # delimited strings
      {
        begin: '"'
        beginCaptures:
          0: name: 'punctuation.definition.string.begin.asar'
        end: '"'
        endCaptures:
          0: name: 'punctuation.definition.string.end.asar'
        name: 'string.quoted.double.assembly.asar'
      }
      # labels
      {
        captures:
          1: name: 'entity.name.function.label.asar'
          2: name: 'entity.name.function.label.asar'
        match: '(\\.*)\\b([A-Za-z0-9_]+):'
        name: 'meta.label.asar'
      }
      # defines
      {
        captures:
          1: name: 'keyword.operator.asar'
          2: name: 'entity.name.function.label.asar'
        match: '(!)\\b([A-Za-z0-9_]+)\\b'
        name: 'meta.define.asar'
      }
      # absolut address/number
      {
        match: '\\#(\'.\'|[^\\s\']+)'
        name: 'constant.numeric.hex.asar'
      }
      # hex, prefixed with ampersand($)
      {
        match: '-?\\$[A-Fa-f0-9]+'
        name: 'constant.numeric.hex.asar'
      }
      # binary
      {
        match: '-?%[01]+'
        name: 'constant.numeric.binary.asar'
      }
      # decimal
      {
        match: '-?\\b([0-9]+)\\b'
        name: 'constant.numeric.decimal.asar'
      }
    ]

  # assembler directives
  directives:
    patterns: [
      # arch command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'constant.language.asar'
        match: '\\b(arch)\\s+(65816|spc700(-inline)?|superfx)'
        name: 'meta.arch.directive.asar'
      }
      # warn xkas command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'support.function.pseudo.asar'
          3: name: 'constant.language.asar'
        match: '\\b(warn)\\s+(xkas)\\s+(on|off)\\b'
        name: 'meta.warn.directive.asar'
      }
      # math command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'support.function.pseudo.asar'
          3: name: 'constant.language.asar'
        match: '\\b(math)\\s+(pri|round)\\s+(on|off)\\b'
        name: 'meta.math.directive.asar'
      }
      # namespace command
      {
        begin: '\\b(namespace)\\b'
        captures:
          1:
            name: 'support.function.pseudo.asar'
        end: '$'
        name: 'meta.namespace.directive.asar'
        patterns: [
          # nested
          {
            captures:
              1: name: 'support.function.pseudo.asar'
              2: name: 'constant.language.asar'
            match: '\\b(nested)\\s+(on|off)\\b'
            name: 'meta.namespace.nested.asar'
          }
          # off
          {
            match: '\\b(off)\\b'
            name: 'constant.language.asar'
          }
          # identifier
          {
            match: '\\b[a-zA-Z0-9_]+\\b'
            name: 'entity.name.function.label.asar'
          }
        ]
      }
      # base command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'constant.language.asar'
        match: '\\b(base)\\s+(off)*'
        name: 'meta.base.directive.asar'
      }
      # bank command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'constant.language.asar'
        match: '\\b(bank)\\s+(noassume|auto)*'
        name: 'meta.bank.directive.asar'
      }
      # struct command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'entity.name.function.label.asar'
          3: name: 'constant.numeric.hex.asar'
        match: '\\b(struct)\\s+([a-zA-Z0-9_]+)\\s+(\\S+)\\b'
        name: 'meta.struct.directive.asar'
      }
      # endstruct command
      {
        captures:
          1: name: 'support.function.pseudo.asar'
          2: name: 'support.function.pseudo.asar'
          3: name: 'constant.numeric.decimal.asar'
        match: '\\b(endstruct)\\s+(align)*\\s+(\\S+)*'
        name: 'meta.struct.directive.asar'
      }
      # data control
      {
        match: '\\b(inc(bin|src)|(push|pull)(pc|base)|warnpc|skip|asar|org|rep|d[bdlw]|(ex)?(lo|hi)rom|(full)?sa1rom|(no|sfx)rom|function)\\b'
        name: 'support.function.pseudo.asar'
      }
      # conditional control
      {
        match: '\\b((end)?if)\\b'
        name: 'keyword.control.conditional.asar'
      }
      # macro control
      # TODO: fix identifier
      {
        match: '\\b((end)?macro)\\b'
        # name: 'support.function.pseudo.asar'
        name: 'keyword.directive.macro.asar'
      }
      # operators
      {
        match: '[-+/*^><|#\\[\\]()=.!&]'
        name: 'keyword.operator.asar'
      }
      # TODO: Add built-in functions
    ]