abnf top-level property

Language abnf

Implementation

final abnf = Language(
  id: "abnf",
  refs: {},
  name: "Augmented Backus-Naur Form",
  illegal: "[!@#\$^&',?+\\x7e`|:]",
  keywords: [
    "ALPHA",
    "BIT",
    "CHAR",
    "CR",
    "CRLF",
    "CTL",
    "DIGIT",
    "DQUOTE",
    "HEXDIG",
    "HTAB",
    "LF",
    "LWSP",
    "OCTET",
    "SP",
    "VCHAR",
    "WSP"
  ],
  contains: [
    Mode(
      scope: "operator",
      match: "=\\/?",
    ),
    Mode(
      scope: "attribute",
      match: "^[a-zA-Z][a-zA-Z0-9-]*(?=\\s*=)",
    ),
    Mode(
      scope: "comment",
      begin: ";",
      end: "\$",
      contains: [
        Mode(
          scope: "doctag",
          begin: "[ ]*(?=(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):)",
          end: "(TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):",
          excludeBegin: true,
          relevance: 0,
        ),
        Mode(
          begin:
              "[ ]+((?:I|a|is|so|us|to|at|if|in|it|on|[A-Za-z]+['](d|ve|re|ll|t|s|n)|[A-Za-z]+[-][a-z]+|[A-Za-z][a-z]{2,})[.]?[:]?([.][ ]|[ ])){3}",
        ),
      ],
    ),
    Mode(
      scope: "symbol",
      match: "%b[0-1]+(-[0-1]+|(\\.[0-1]+)+)?",
    ),
    Mode(
      scope: "symbol",
      match: "%d[0-9]+(-[0-9]+|(\\.[0-9]+)+)?",
    ),
    Mode(
      scope: "symbol",
      match: "%x[0-9A-F]+(-[0-9A-F]+|(\\.[0-9A-F]+)+)?",
    ),
    Mode(
      scope: "symbol",
      match: "%[si](?=\".*\")",
    ),
    QUOTE_STRING_MODE,
    NUMBER_MODE,
  ],
);