runtime/syntax/crystal.yaml

   1 filetype: crystal
   2
   3 detect:
   4     filename: "\\.cr$"
   5
   6 rules:
   7     # Asciibetical list of reserved words
   8     - statement: "\\b(abstract|alias|as|asm|begin|break|case|class|def|do|else|elsif|end|ensure|enum|extend|for|fun|if|in|include|instance_sizeof|lib|loop|macro|module|next|of|out|pointerof|private|protected|raise|require|rescue|return|select|self|sizeof|spawn|struct|super|then|type|typeof|uninitialized|union|unless|until|verbatim|when|while|with|yield)\\b"
   9       # Constants
  10     - constant: "\\b(true|false|nil)\\b"
  11     - constant.number: "\\b[0-9]+\\b"
  12       # Ones that can't be in the same regex because they include non-words.
  13       # The nil? one has to be after the constants.
  14     - statement: "\\b(nil\\?|as(\\?|\\b)|is_a\\?|responds_to\\?)"
  15     - type: "(\\$|@|@@)?\\b[A-Z]+[0-9A-Z_a-z]*"
  16       # Crystal "symbols"
  17     - constant:  "([    ]|^):[0-9A-Z_]+\\b"
  18       # Some unique things we want to stand out
  19     - constant: "\\b(__FILE__|__LINE__)\\b"
  20       # Regular expressions
  21     - constant: "/([^/]|(\\\\/))*/[iomx]*|%r\\{([^}]|(\\\\}))*\\}[iomx]*"
  22
  23       # Shell command expansion is in `backticks` or like %x{this}.  These are
  24       # "double-quotish" (to use a perlism).
  25     - constant.string: "`[^`]*`|%x\\{[^}]*\\}"
  26
  27     - constant.string:
  28         start: "`"
  29         end: "`"
  30         rules: []
  31
  32     - constant.string:
  33         start: "%x\\{"
  34         end: "\\}"
  35         rules: []
  36
  37     - constant.string:
  38         start: "\""
  39         end: "\""
  40         skip: "\\\\."
  41         rules:
  42             - constant.specialChar: "\\\\."
  43             - symbol.brackets:
  44                 start: "#\\{"
  45                 end: "\\}"
  46                 rules:
  47                     - default: ".*"
  48
  49     - constant.string:
  50         start: "'"
  51         end: "'"
  52         skip: "\\\\."
  53         rules:
  54             - constant.specialChar: "\\\\."
  55
  56     - comment:
  57         start: "#"
  58         end: "$"
  59         rules:
  60             - todo: "(TODO|XXX|FIXME):?"
  61
  62     - comment.bright:
  63         start: "##"
  64         end: "$"
  65         rules:
  66             - todo: "(TODO|XXX|FIXME):?"
  67
  68     - constant:
  69         start: "<<-?'?EOT'?"
  70         end: "^EOT"
  71         rules: []
  72