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86 lines
3.7 KiB
PHP
86 lines
3.7 KiB
PHP
<?php
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class HTMLPurifier_AttrDef_LangTest extends HTMLPurifier_AttrDefHarness
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{
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function test() {
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$this->def = new HTMLPurifier_AttrDef_Lang();
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// basic good uses
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$this->assertDef('en');
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$this->assertDef('en-us');
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$this->assertDef(' en ', 'en'); // trim
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$this->assertDef('EN', 'en'); // case insensitivity
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// (thanks Eugen Pankratz for noticing the typos!)
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$this->assertDef('En-Us-Edison', 'en-us-edison'); // complex ci
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$this->assertDef('fr en', false); // multiple languages
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$this->assertDef('%', false); // bad character
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// test overlong language according to syntax
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$this->assertDef('thisistoolongsoitgetscut', false);
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// primary subtag rules
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// I'm somewhat hesitant to allow x and i as primary language codes,
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// because they usually are never used in real life. However,
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// theoretically speaking, having them alone is permissable, so
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// I'll be lenient. No XML parser is going to complain anyway.
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$this->assertDef('x');
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$this->assertDef('i');
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// real world use-cases
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$this->assertDef('x-klingon');
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$this->assertDef('i-mingo');
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// because the RFC only defines two and three letter primary codes,
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// anything with a length of four or greater is invalid, despite
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// the syntax stipulation of 1 to 8 characters. Because the RFC
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// specifically states that this reservation is in order to allow
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// for future versions to expand, the adoption of a new RFC will
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// require these test cases to be rewritten, even if backwards-
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// compatibility is largely retained (i.e. this is not forwards
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// compatible)
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$this->assertDef('four', false);
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// for similar reasons, disallow any other one character language
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$this->assertDef('f', false);
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// second subtag rules
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// one letter subtags prohibited until revision. This is, however,
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// less volatile than the restrictions on the primary subtags.
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// Also note that this test-case tests fix-behavior: chop
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// off subtags until you get a valid language code.
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$this->assertDef('en-a', 'en');
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// however, x is a reserved single-letter subtag that is allowed
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$this->assertDef('en-x', 'en-x');
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// 2-8 chars are permitted, but have special meaning that cannot
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// be checked without maintaining country code lookup tables (for
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// two characters) or special registration tables (for all above).
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$this->assertDef('en-uk', true);
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// further subtag rules: only syntactic constraints
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$this->assertDef('en-us-edison');
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$this->assertDef('en-us-toolonghaha', 'en-us');
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$this->assertDef('en-us-a-silly-long-one');
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// rfc 3066 stipulates that if a three letter and a two letter code
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// are available, the two letter one MUST be used. Without a language
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// code lookup table, we cannot implement this functionality.
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// although the HTML protocol, technically speaking, allows you to
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// omit language tags, this implicitly means that the parent element's
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// language is the one applicable, which, in some cases, is incorrect.
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// Thus, we allow und, only slightly defying the RFC's SHOULD NOT
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// designation.
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$this->assertDef('und');
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// because attributes only allow one language, mul is allowed, complying
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// with the RFC's SHOULD NOT designation.
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$this->assertDef('mul');
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}
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}
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// vim: et sw=4 sts=4
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