import "./chunk-5WWUZCGV.js";

// node_modules/.deno/@codemirror+legacy-modes@6.5.2/node_modules/@codemirror/legacy-modes/mode/crystal.js
function wordRegExp(words, end) {
  return new RegExp((end ? "" : "^") + "(?:" + words.join("|") + ")" + (end ? "$" : "\\b"));
}
function chain(tokenize, stream, state) {
  state.tokenize.push(tokenize);
  return tokenize(stream, state);
}
var operators = /^(?:[-+/%|&^]|\*\*?|[<>]{2})/;
var conditionalOperators = /^(?:[=!]~|===|<=>|[<>=!]=?|[|&]{2}|~)/;
var indexingOperators = /^(?:\[\][?=]?)/;
var anotherOperators = /^(?:\.(?:\.{2})?|->|[?:])/;
var idents = /^[a-z_\u009F-\uFFFF][a-zA-Z0-9_\u009F-\uFFFF]*/;
var types = /^[A-Z_\u009F-\uFFFF][a-zA-Z0-9_\u009F-\uFFFF]*/;
var keywords = wordRegExp([
  "abstract",
  "alias",
  "as",
  "asm",
  "begin",
  "break",
  "case",
  "class",
  "def",
  "do",
  "else",
  "elsif",
  "end",
  "ensure",
  "enum",
  "extend",
  "for",
  "fun",
  "if",
  "include",
  "instance_sizeof",
  "lib",
  "macro",
  "module",
  "next",
  "of",
  "out",
  "pointerof",
  "private",
  "protected",
  "rescue",
  "return",
  "require",
  "select",
  "sizeof",
  "struct",
  "super",
  "then",
  "type",
  "typeof",
  "uninitialized",
  "union",
  "unless",
  "until",
  "when",
  "while",
  "with",
  "yield",
  "__DIR__",
  "__END_LINE__",
  "__FILE__",
  "__LINE__"
]);
var atomWords = wordRegExp(["true", "false", "nil", "self"]);
var indentKeywordsArray = [
  "def",
  "fun",
  "macro",
  "class",
  "module",
  "struct",
  "lib",
  "enum",
  "union",
  "do",
  "for"
];
var indentKeywords = wordRegExp(indentKeywordsArray);
var indentExpressionKeywordsArray = ["if", "unless", "case", "while", "until", "begin", "then"];
var indentExpressionKeywords = wordRegExp(indentExpressionKeywordsArray);
var dedentKeywordsArray = ["end", "else", "elsif", "rescue", "ensure"];
var dedentKeywords = wordRegExp(dedentKeywordsArray);
var dedentPunctualsArray = ["\\)", "\\}", "\\]"];
var dedentPunctuals = new RegExp("^(?:" + dedentPunctualsArray.join("|") + ")$");
var nextTokenizer = {
  "def": tokenFollowIdent,
  "fun": tokenFollowIdent,
  "macro": tokenMacroDef,
  "class": tokenFollowType,
  "module": tokenFollowType,
  "struct": tokenFollowType,
  "lib": tokenFollowType,
  "enum": tokenFollowType,
  "union": tokenFollowType
};
var matching = { "[": "]", "{": "}", "(": ")", "<": ">" };
function tokenBase(stream, state) {
  if (stream.eatSpace()) {
    return null;
  }
  if (state.lastToken != "\\" && stream.match("{%", false)) {
    return chain(tokenMacro("%", "%"), stream, state);
  }
  if (state.lastToken != "\\" && stream.match("{{", false)) {
    return chain(tokenMacro("{", "}"), stream, state);
  }
  if (stream.peek() == "#") {
    stream.skipToEnd();
    return "comment";
  }
  var matched;
  if (stream.match(idents)) {
    stream.eat(/[?!]/);
    matched = stream.current();
    if (stream.eat(":")) {
      return "atom";
    } else if (state.lastToken == ".") {
      return "property";
    } else if (keywords.test(matched)) {
      if (indentKeywords.test(matched)) {
        if (!(matched == "fun" && state.blocks.indexOf("lib") >= 0) && !(matched == "def" && state.lastToken == "abstract")) {
          state.blocks.push(matched);
          state.currentIndent += 1;
        }
      } else if ((state.lastStyle == "operator" || !state.lastStyle) && indentExpressionKeywords.test(matched)) {
        state.blocks.push(matched);
        state.currentIndent += 1;
      } else if (matched == "end") {
        state.blocks.pop();
        state.currentIndent -= 1;
      }
      if (nextTokenizer.hasOwnProperty(matched)) {
        state.tokenize.push(nextTokenizer[matched]);
      }
      return "keyword";
    } else if (atomWords.test(matched)) {
      return "atom";
    }
    return "variable";
  }
  if (stream.eat("@")) {
    if (stream.peek() == "[") {
      return chain(tokenNest("[", "]", "meta"), stream, state);
    }
    stream.eat("@");
    stream.match(idents) || stream.match(types);
    return "propertyName";
  }
  if (stream.match(types)) {
    return "tag";
  }
  if (stream.eat(":")) {
    if (stream.eat('"')) {
      return chain(tokenQuote('"', "atom", false), stream, state);
    } else if (stream.match(idents) || stream.match(types) || stream.match(operators) || stream.match(conditionalOperators) || stream.match(indexingOperators)) {
      return "atom";
    }
    stream.eat(":");
    return "operator";
  }
  if (stream.eat('"')) {
    return chain(tokenQuote('"', "string", true), stream, state);
  }
  if (stream.peek() == "%") {
    var style = "string";
    var embed = true;
    var delim;
    if (stream.match("%r")) {
      style = "string.special";
      delim = stream.next();
    } else if (stream.match("%w")) {
      embed = false;
      delim = stream.next();
    } else if (stream.match("%q")) {
      embed = false;
      delim = stream.next();
    } else {
      if (delim = stream.match(/^%([^\w\s=])/)) {
        delim = delim[1];
      } else if (stream.match(/^%[a-zA-Z_\u009F-\uFFFF][\w\u009F-\uFFFF]*/)) {
        return "meta";
      } else if (stream.eat("%")) {
        return "operator";
      }
    }
    if (matching.hasOwnProperty(delim)) {
      delim = matching[delim];
    }
    return chain(tokenQuote(delim, style, embed), stream, state);
  }
  if (matched = stream.match(/^<<-('?)([A-Z]\w*)\1/)) {
    return chain(tokenHereDoc(matched[2], !matched[1]), stream, state);
  }
  if (stream.eat("'")) {
    stream.match(/^(?:[^']|\\(?:[befnrtv0'"]|[0-7]{3}|u(?:[0-9a-fA-F]{4}|\{[0-9a-fA-F]{1,6}\})))/);
    stream.eat("'");
    return "atom";
  }
  if (stream.eat("0")) {
    if (stream.eat("x")) {
      stream.match(/^[0-9a-fA-F_]+/);
    } else if (stream.eat("o")) {
      stream.match(/^[0-7_]+/);
    } else if (stream.eat("b")) {
      stream.match(/^[01_]+/);
    }
    return "number";
  }
  if (stream.eat(/^\d/)) {
    stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+-]?\d+)?/);
    return "number";
  }
  if (stream.match(operators)) {
    stream.eat("=");
    return "operator";
  }
  if (stream.match(conditionalOperators) || stream.match(anotherOperators)) {
    return "operator";
  }
  if (matched = stream.match(/[({[]/, false)) {
    matched = matched[0];
    return chain(tokenNest(matched, matching[matched], null), stream, state);
  }
  if (stream.eat("\\")) {
    stream.next();
    return "meta";
  }
  stream.next();
  return null;
}
function tokenNest(begin, end, style, started) {
  return function(stream, state) {
    if (!started && stream.match(begin)) {
      state.tokenize[state.tokenize.length - 1] = tokenNest(begin, end, style, true);
      state.currentIndent += 1;
      return style;
    }
    var nextStyle = tokenBase(stream, state);
    if (stream.current() === end) {
      state.tokenize.pop();
      state.currentIndent -= 1;
      nextStyle = style;
    }
    return nextStyle;
  };
}
function tokenMacro(begin, end, started) {
  return function(stream, state) {
    if (!started && stream.match("{" + begin)) {
      state.currentIndent += 1;
      state.tokenize[state.tokenize.length - 1] = tokenMacro(begin, end, true);
      return "meta";
    }
    if (stream.match(end + "}")) {
      state.currentIndent -= 1;
      state.tokenize.pop();
      return "meta";
    }
    return tokenBase(stream, state);
  };
}
function tokenMacroDef(stream, state) {
  if (stream.eatSpace()) {
    return null;
  }
  var matched;
  if (matched = stream.match(idents)) {
    if (matched == "def") {
      return "keyword";
    }
    stream.eat(/[?!]/);
  }
  state.tokenize.pop();
  return "def";
}
function tokenFollowIdent(stream, state) {
  if (stream.eatSpace()) {
    return null;
  }
  if (stream.match(idents)) {
    stream.eat(/[!?]/);
  } else {
    stream.match(operators) || stream.match(conditionalOperators) || stream.match(indexingOperators);
  }
  state.tokenize.pop();
  return "def";
}
function tokenFollowType(stream, state) {
  if (stream.eatSpace()) {
    return null;
  }
  stream.match(types);
  state.tokenize.pop();
  return "def";
}
function tokenQuote(end, style, embed) {
  return function(stream, state) {
    var escaped = false;
    while (stream.peek()) {
      if (!escaped) {
        if (stream.match("{%", false)) {
          state.tokenize.push(tokenMacro("%", "%"));
          return style;
        }
        if (stream.match("{{", false)) {
          state.tokenize.push(tokenMacro("{", "}"));
          return style;
        }
        if (embed && stream.match("#{", false)) {
          state.tokenize.push(tokenNest("#{", "}", "meta"));
          return style;
        }
        var ch = stream.next();
        if (ch == end) {
          state.tokenize.pop();
          return style;
        }
        escaped = embed && ch == "\\";
      } else {
        stream.next();
        escaped = false;
      }
    }
    return style;
  };
}
function tokenHereDoc(phrase, embed) {
  return function(stream, state) {
    if (stream.sol()) {
      stream.eatSpace();
      if (stream.match(phrase)) {
        state.tokenize.pop();
        return "string";
      }
    }
    var escaped = false;
    while (stream.peek()) {
      if (!escaped) {
        if (stream.match("{%", false)) {
          state.tokenize.push(tokenMacro("%", "%"));
          return "string";
        }
        if (stream.match("{{", false)) {
          state.tokenize.push(tokenMacro("{", "}"));
          return "string";
        }
        if (embed && stream.match("#{", false)) {
          state.tokenize.push(tokenNest("#{", "}", "meta"));
          return "string";
        }
        escaped = stream.next() == "\\" && embed;
      } else {
        stream.next();
        escaped = false;
      }
    }
    return "string";
  };
}
var crystal = {
  name: "crystal",
  startState: function() {
    return {
      tokenize: [tokenBase],
      currentIndent: 0,
      lastToken: null,
      lastStyle: null,
      blocks: []
    };
  },
  token: function(stream, state) {
    var style = state.tokenize[state.tokenize.length - 1](stream, state);
    var token = stream.current();
    if (style && style != "comment") {
      state.lastToken = token;
      state.lastStyle = style;
    }
    return style;
  },
  indent: function(state, textAfter, cx) {
    textAfter = textAfter.replace(/^\s*(?:\{%)?\s*|\s*(?:%\})?\s*$/g, "");
    if (dedentKeywords.test(textAfter) || dedentPunctuals.test(textAfter)) {
      return cx.unit * (state.currentIndent - 1);
    }
    return cx.unit * state.currentIndent;
  },
  languageData: {
    indentOnInput: wordRegExp(dedentPunctualsArray.concat(dedentKeywordsArray), true),
    commentTokens: { line: "#" }
  }
};
export {
  crystal
};
//# sourceMappingURL=crystal-JZJII5WW.js.map
