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<!--
Copyright 2015 Walter Schulze
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Katydid Validator Playground</title>
<link rel="stylesheet" href="./vendor/tlvince/bootstrap-theme-cosmo/cosmo.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
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<body>
<nav class="navbar navbar-custom">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="https://github.com/katydid/katydid">The Katydid Validator Playground</a>
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<div class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li id="modejson"><a class="navbar-link" href="?mode=json">json</a></li>
<li id="modexml"><a class="navbar-link" href="?mode=xml">xml</a></li>
</ul>
<form class="navbar-form navbar-left">
<div class="form-group">
<input id="thelink" readonly="true" class="form-control" autofocus="true" style="width: 30cm" type="hidden"/>
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<li id="autosizeButton"><a href="#">Autosize</a></li>
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<p></p>
<div class="row">
<div class="col-xs-6">
<div class="row">
<div class="col-xs-2"></div>
<div class="col-xs-10">
<h3>validator</h3>
</div>
</div>
</div>
<div class="col-xs-6">
<div class="row">
<div class="col-xs-10">
<h3 id="inputheading">input</h3>
</div>
<div class="col-xs-2"></div>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-6">
<div class="row">
<div class="col-xs-2"></div>
<div class="col-xs-10">
<div id="lefttextarea"></div>
</div>
</div>
</div>
<div class="col-xs-6">
<div class="row">
<div class="col-xs-10">
<div id="righttextarea"></div>
</div>
<div class="col-xs-2"></div>
</div>
</div>
</div>
<p></p>
<p></p>
<div class="row">
<div class="col-xs-1"></div>
<div class="col-xs-10 text-center">
<div id="theoutput"></div>
</div>
<div class="col-xs-1"></div>
</div>
<div class="row" id="quickref">
<div class="col-xs-1"></div>
<div class="col-xs-10">
<div class="panel panel-default">
<div class="panel-heading text-center">
<h3 class="panel-title">Quick Reference</h3>
</div>
<div class="panel-body">
<div class="row">
<div class="col-xs-6">
<div class="row">
<div class="col-xs-4">v :: $bool</div>
<div class="col-xs-8">Field v is a boolean</div>
</div>
<div class="row">
<div class="col-xs-4">v != true</div>
<div class="col-xs-8">Field v is a boolean which is false</div>
</div>
<div class="row">
<div class="col-xs-4">D *= "bc"</div>
<div class="col-xs-8">D is a string which contains the substring bc</div>
</div>
<div class="row">
<div class="col-xs-4">"num" < -100</div>
<div class="col-xs-8">num is an int which is less than negative 100</div>
</div>
<div class="row">
<div class="col-xs-4">u >= uint(100)</div>
<div class="col-xs-8">u is an unsigned int which is greater than or equal to a 100</div>
</div>
<div class="row">
<div class="col-xs-4">F > double(0.5)</div>
<div class="col-xs-8">F is a floating point number which is greater than a half.</div>
</div>
<div class="row">
<div class="col-xs-4">"F g\\" :: $bool</div>
<div class="col-xs-8">F g\ is a boolean.
Notice the escaped backslash. Quotes are useful for spaces and other escapable characters.</div>
</div>
<div class="row">
<div class="col-xs-4">`F g\` :: $bool</div>
<div class="col-xs-8">F g\ is a boolean.
Notice the backslash is included in the string. Backticks are useful for literal and even multiline unescaped strings.</div>
</div>
<div class="row">
<div class="col-xs-4">B == []byte{0xfe,'a',255}</div>
<div class="col-xs-8">B is an array of bytes which equals {254,97,255}. note: json has no bytes type.</div>
</div>
<div class="row">
<div class="col-xs-4">a ^= "abc"</div>
<div class="col-xs-8">... starts with abc</div>
</div>
<div class="row">
<div class="col-xs-4">a $= "xyz"</div>
<div class="col-xs-8">... ends with xyz</div>
</div>
<div class="row">
<div class="col-xs-4">a ~= "^abc.*xyz$"</div>
<div class="col-xs-8">... matches the regular expression, which means it starts with abc and ends with xyz</div>
</div>
<div class="row">
<div class="col-xs-4">D -> contains($string, "bc")</div>
<div class="col-xs-8">D is a string which contains the substring bc</div>
</div>
<div class="row">
<div class="col-xs-4">L -> gt(length($[]byte), 0)</div>
<div class="col-xs-8">L is an array of bytes which has a length greater than zero</div>
</div>
<div class="row">
<div class="col-xs-4">N -> and(ge($int, 10), lt($int, 20))</div>
<div class="col-xs-8">N is an int which is greater than or equal to 10 and less than 20</div>
</div>
</div>
<div class="col-xs-6">
<div class="row">
<div class="col-xs-4">*</div>
<div class="col-xs-8">The structure contains zero or more of anything</div>
</div>
<div class="row">
<div class="col-xs-4">A: *</div>
<div class="col-xs-8">The structure contains exactly one field. That field is named A. It may have any value.</div>
</div>
<div class="row">
<div class="col-xs-4">A: b == "c"</div>
<div class="col-xs-8">The structure contains one field named A, which contains one field named b, which equals c</div>
</div>
<div class="row">
<div class="col-xs-4">[A:*, B:*]</div>
<div class="col-xs-8">Validates a structure that contains exactly two ordered fields, A followed by B. Each of these fields can contain anything.</div>
</div>
<div class="row">
<div class="col-xs-4">{A:*; B:*}</div>
<div class="col-xs-8">Validates a structure that contains exactly two fields, A and B, but in any order.</div>
</div>
<div class="row">
<div class="col-xs-4">C [A:*, B:*]</div>
<div class="col-xs-8">... one field C which contains two fields, A followed by B ...</div>
</div>
<div class="row">
<div class="col-xs-4">C [(A:*)?, B:*]</div>
<div class="col-xs-8">C contains an optional field A followed by a required field B</div>
</div>
<div class="row">
<div class="col-xs-4">D [0 == "a", 1 == "b"]</div>
<div class="col-xs-8">D contains an array where the zeroth element is a and the element at index one is b</div>
</div>
<div class="row">
<div class="col-xs-4">E [0 == "b", *]</div>
<div class="col-xs-8">E contains an array which starts with a string b and is followed by zero or more elements</div>
</div>
<div class="row">
<div class="col-xs-4">F [(_ == "a")*, _ == "b"]</div>
<div class="col-xs-8">F contains an array or a structure where the first elements all have value a and the final element has value b</div>
</div>
<div class="row">
<div class="col-xs-4">(A:* | B:* | C:*)</div>
<div class="col-xs-8">... one field: A, B or C. The parentheses are not for arbitrary grouping, but are required for grouping of the same operator, for example | or &.</div>
</div>
<div class="row">
<div class="col-xs-4">(C:* & D:*)</div>
<div class="col-xs-8">Well this is impossible. You cannot have exactly one field where the field name is equal to C and equal to D</div>
</div>
<div class="row">
<div class="col-xs-4">((C:* | D:*) & (D:* | E:* | F:*))</div>
<div class="col-xs-8">You can have nested expressions. This will validate a structure with exactly one field named D.</div>
</div>
<div class="row">
<div class="col-xs-4">_:*</div>
<div class="col-xs-8">one field, which has any name and contains anything</div>
</div>
<div class="row">
<div class="col-xs-4">(A | B):*</div>
<div class="col-xs-8">one field named A or B</div>
</div>
<div class="row">
<div class="col-xs-4">!(A):*</div>
<div class="col-xs-8">one field named anything except A</div>
</div>
<div class="row">
<div class="col-xs-4">((A | B):* & (A | C):*)</div>
<div class="col-xs-8">one field named A</div>
</div>
<div class="row">
<div class="col-xs-4">(A:*)*</div>
<div class="col-xs-8">zero or more fields named A, which each contains anything</div>
</div>
<div class="row">
<div class="col-xs-4">!(A:*)</div>
<div class="col-xs-8">any structure that does have just one field named A</div>
</div>
<div class="row">
<div class="col-xs-4">A: @myref <br/>#myref = b=="c"</div>
<div class="col-xs-8">The structure contains one field named A, which contains one field named b, which equals c.</div>
</div>
<div class="row">
<div class="col-xs-4">#main = A: (@main | b=="c")</div>
<div class="col-xs-8">one field A containing one field A ... where one eventually contains a field b which equals c</div>
</div>
<div class="row">
<div class="col-xs-4">.A:*</div>
<div class="col-xs-8">equivalent to [*, A:*, *].
A structure which contains a field A. There can be many other fields around A.</div>
</div>
<div class="row">
<div class="col-xs-4">.A.b == "c"</div>
<div class="col-xs-8">equivalent to [*, A:[*, b==c, *], *].
A structure which contains a field A, which contains a field b which is equal to c</div>
</div>
<div class="row">
<div class="col-xs-4">.B._ == "c"</div>
<div class="col-xs-8">equivalent to [*, B:[*, _==c, *], *].
A structure which contains a field B, which contains a field or an array value which is equal to c</div>
</div>
</div>
</div>
</div>
<div class="panel-footer">
<div class="row">
<div class="col-xs-4 text-center">
field types: $double, $int, $uint, $bool, $string, $[]byte
</div>
<div class="col-xs-4 text-center">
<a href="https://raw.githubusercontent.com/katydid/katydid/master/list_of_functions.txt">more functions</a>
</div>
<div class="col-xs-4 text-center">
<a href="https://raw.githubusercontent.com/katydid/validator-go/refs/heads/main/validator/bnf/all.bnf">grammar specification</a>
</div>
</div>
</div>
</div>
</div>
<div class="col-xs-1"></div>
</div>
<div class="row">
<div class="col-xs-1"></div>
<div class="col-xs-10 text-right">Powered By:
<a href="https://github.com/gopherjs/gopherjs"><img src="https://avatars0.githubusercontent.com/u/6654647?v=3&s=200" height="40" alt="gopherjs"></img></a>
<a href="https://github.com"><img src="https://assets-cdn.github.com/images/modules/logos_page/Octocat.png" height="40" alt="github"></img></a>
<a href="https://codemirror.net/"><img src="https://codemirror.net/doc/logo.png" height="40" alt="codemirror"></img></a>
<a href="https://github.com/goccmack/gocc"><img src="https://raw.githubusercontent.com/goccmack/gocc/master/doc/gocc.jpg" height="40" alt="gocc"></img></a>
<a href="https://github.com/gogo/protobuf"><img src="https://avatars0.githubusercontent.com/u/9958490?v=3&s=200" height="40" alt="gogoprotobuf"></img></a>
<a href="https://golang.org/"><img src="https://avatars3.githubusercontent.com/u/4314092?v=3&s=200" height="40" alt="golang"></img></a>
</div>
<div class="col-xs-1"></div>
</div>
</body>
<script type="text/javascript">
init();
</script>
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