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< > BotCompany Repo | #1033966 // GazelleVScriptParser - successor of GazelleVScript

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (5383L/31K).

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/*
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Input is e.g. "32p 8c". We want to get out the 2 operators.
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Then we apply a "puzzler" which tries to combine the operators in a useful way.
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// Operators
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<int> p = scaleToHeight : IBWntegralImage -> BWImage
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<int> c = posterize : BWImage -> BWImage
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// Juxtaposition of operators
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_ _ = juxtapose : Op, Op -> Op [left-assoc]
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*/
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sclass GazelleVScriptParser<T> extends SimpleLeftToRightParser {
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  CalculatedFieldIndexedList<GAbstractOperator<T>, S> operators = new(op -> op.name);
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  new L<ParsedWithTokens> parsed; // contains ints and operators
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  *() {}
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  *(S text) { super(text); }
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  { set caseInsensitive; }
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  void addOperators(GAbstractOperator<T>... l) {
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    addAll(operators, l);
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  }
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  void addOperators(Iterable<? extends GAbstractOperator<T>> l) {
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    addAll(operators, l);
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  }
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  void parse(S text) { this.text = text; parse(); }
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  void parse {
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    while (mainLoop()) {
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      if (isInteger()) {
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        addToParse(parseInt(tpp()));
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        continue;
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      }
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      addToParse(findOp(tpp()));
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    }
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  }
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  // assumes you have already called tpp()
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  void addToParse(O o) {
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    parsed.add(ParsedWithTokens(o, tok, ptr.idx()-2, ptr.idx()));
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  }
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  GAbstractOperator<T> findOp(S name) {
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    var ops = operators.getAllByKey(name);
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    if (empty(ops))
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      warn("Unknown operator: " + name);
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    else if (l(ops) > 1)
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      warn("Multiple operator definitions (please use GPolymorphicOperator instead): " + name);
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    ret first(ops);
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  }
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}

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Snippet ID: #1033966
Snippet name: GazelleVScriptParser - successor of GazelleVScript
Eternal ID of this version: #1033966/18
Text MD5: 5b0af4e289f60f88e7dd7dbefa1ee9d5
Transpilation MD5: 13d2c012528423d8b4fafd49ae8fe724
Author: stefan
Category: javax
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-01-15 02:27:43
Source code size: 1525 bytes / 58 lines
Pitched / IR pitched: No / No
Views / Downloads: 50 / 141
Version history: 17 change(s)
Referenced in: [show references]