var E = "builtin", a = "comment", g = "string", x = "symbol", c = "atom", b = "number", v = "bracket", S = 2;
function w(e) {
  for (var n = {}, i = e.split(" "), t = 0; t < i.length; ++t)
    n[i[t]] = true;
  return n;
}
var k = w("\u03BB case-lambda call/cc class cond-expand define-class define-values exit-handler field import inherit init-field interface let*-values let-values let/ec mixin opt-lambda override protect provide public rename require require-for-syntax syntax syntax-case syntax-error unit/sig unless when with-syntax and begin call-with-current-continuation call-with-input-file call-with-output-file case cond define define-syntax define-macro defmacro delay do dynamic-wind else for-each if lambda let let* let-syntax letrec letrec-syntax map or syntax-rules abs acos angle append apply asin assoc assq assv atan boolean? caar cadr call-with-input-file call-with-output-file call-with-values car cdddar cddddr cdr ceiling char->integer char-alphabetic? char-ci<=? char-ci<? char-ci=? char-ci>=? char-ci>? char-downcase char-lower-case? char-numeric? char-ready? char-upcase char-upper-case? char-whitespace? char<=? char<? char=? char>=? char>? char? close-input-port close-output-port complex? cons cos current-input-port current-output-port denominator display eof-object? eq? equal? eqv? eval even? exact->inexact exact? exp expt #f floor force gcd imag-part inexact->exact inexact? input-port? integer->char integer? interaction-environment lcm length list list->string list->vector list-ref list-tail list? load log magnitude make-polar make-rectangular make-string make-vector max member memq memv min modulo negative? newline not null-environment null? number->string number? numerator odd? open-input-file open-output-file output-port? pair? peek-char port? positive? procedure? quasiquote quote quotient rational? rationalize read read-char real-part real? remainder reverse round scheme-report-environment set! set-car! set-cdr! sin sqrt string string->list string->number string->symbol string-append string-ci<=? string-ci<? string-ci=? string-ci>=? string-ci>? string-copy string-fill! string-length string-ref string-set! string<=? string<? string=? string>=? string>? string? substring symbol->string symbol? #t tan transcript-off transcript-on truncate values vector vector->list vector-fill! vector-length vector-ref vector-set! with-input-from-file with-output-to-file write write-char zero?"), q = w("define let letrec let* lambda define-macro defmacro let-syntax letrec-syntax let-values let*-values define-syntax syntax-rules define-values when unless");
function C(e, n, i) {
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}
function s(e, n, i) {
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}
function N(e) {
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}
var M = new RegExp(/^(?:[-+]i|[-+][01]+#*(?:\/[01]+#*)?i|[-+]?[01]+#*(?:\/[01]+#*)?@[-+]?[01]+#*(?:\/[01]+#*)?|[-+]?[01]+#*(?:\/[01]+#*)?[-+](?:[01]+#*(?:\/[01]+#*)?)?i|[-+]?[01]+#*(?:\/[01]+#*)?)(?=[()\s;"]|$)/i), Q = new RegExp(/^(?:[-+]i|[-+][0-7]+#*(?:\/[0-7]+#*)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?@[-+]?[0-7]+#*(?:\/[0-7]+#*)?|[-+]?[0-7]+#*(?:\/[0-7]+#*)?[-+](?:[0-7]+#*(?:\/[0-7]+#*)?)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?)(?=[()\s;"]|$)/i), I = new RegExp(/^(?:[-+]i|[-+][\da-f]+#*(?:\/[\da-f]+#*)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?@[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?[-+](?:[\da-f]+#*(?:\/[\da-f]+#*)?)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?)(?=[()\s;"]|$)/i), R = new RegExp(/^(?:[-+]i|[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)i|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)@[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)?i|(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*))(?=[()\s;"]|$)/i);
function B(e) {
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}
function $(e) {
  return e.match(Q);
}
function u(e, n) {
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}
function O(e) {
  return e.match(I);
}
function y(e, n) {
  for (var i, t = false; (i = e.next()) != null; ) {
    if (i == n.token && !t) {
      n.state.mode = false;
      break;
    }
    t = !t && i == "\\";
  }
}
const U = { name: "scheme", startState: function() {
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}, token: function(e, n) {
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    return null;
  var i = null;
  switch (n.mode) {
    case "string":
      y(e, { token: '"', state: n }), i = g;
      break;
    case "symbol":
      y(e, { token: "|", state: n }), i = x;
      break;
    case "comment":
      for (var t, p = false; (t = e.next()) != null; ) {
        if (t == "#" && p) {
          n.mode = false;
          break;
        }
        p = t == "|";
      }
      i = a;
      break;
    case "s-expr-comment":
      if (n.mode = false, e.peek() == "(" || e.peek() == "[")
        n.sExprComment = 0;
      else {
        e.eatWhile(/[^\s\(\)\[\]]/), i = a;
        break;
      }
    default:
      var r = e.next();
      if (r == '"')
        n.mode = "string", i = g;
      else if (r == "'")
        e.peek() == "(" || e.peek() == "[" ? (typeof n.sExprQuote != "number" && (n.sExprQuote = 0), i = c) : (e.eatWhile(/[\w_\-!$%&*+\.\/:<=>?@\^~]/), i = c);
      else if (r == "|")
        n.mode = "symbol", i = x;
      else if (r == "#")
        if (e.eat("|"))
          n.mode = "comment", i = a;
        else if (e.eat(/[tf]/i))
          i = c;
        else if (e.eat(";"))
          n.mode = "s-expr-comment", i = a;
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          var l = null, o = false, m = true;
          e.eat(/[ei]/i) ? o = true : e.backUp(1), e.match(/^#b/i) ? l = B : e.match(/^#o/i) ? l = $ : e.match(/^#x/i) ? l = O : e.match(/^#d/i) ? l = u : e.match(/^[-+0-9.]/, false) ? (m = false, l = u) : o || e.eat("#"), l != null && (m && !o && e.match(/^#[ei]/i), l(e) && (i = b));
        }
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      } else
        r == ")" || r == "]" ? (i = v, n.indentStack != null && n.indentStack.type == (r == ")" ? "(" : "[") && (N(n), typeof n.sExprComment == "number" && --n.sExprComment == 0 && (i = a, n.sExprComment = false), typeof n.sExprQuote == "number" && --n.sExprQuote == 0 && (i = c, n.sExprQuote = false))) : (e.eatWhile(/[\w_\-!$%&*+\.\/:<=>?@\^~]/), k && k.propertyIsEnumerable(e.current()) ? i = E : i = "variable");
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}, indent: function(e) {
  return e.indentStack == null ? e.indentation : e.indentStack.indent;
}, languageData: { closeBrackets: { brackets: ["(", "[", "{", '"'] }, commentTokens: { line: ";;" } } };
export {
  U as scheme
};
