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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package html
import (
"utf8"
)
// entity is a map from HTML entity names to their values. The semicolon matters:
// http://www.whatwg.org/specs/web-apps/current-work/multipage/named-character-references.html
// lists both "amp" and "amp;" as two separate entries.
//
// TODO(nigeltao): Take the complete map from the HTML5 spec section 10.5 "Named character references".
// http://www.whatwg.org/specs/web-apps/current-work/multipage/named-character-references.html
// Note that the HTML5 list is larger than the HTML4 list at
// http://www.w3.org/TR/html4/sgml/entities.html
var entity = map[string]int{
"aacute": '\U000000E1',
"aacute;": '\U000000E1',
"amp;": '\U00000026',
"apos;": '\U00000027',
"gt;": '\U0000003E',
"lt;": '\U0000003C',
"quot;": '\U00000022',
}
func init() {
// We verify that the length of UTF-8 encoding of each value is <= 1 + len(key).
// The +1 comes from the leading "&". This property implies that the length of
// unescaped text is <= the length of escaped text.
for k, v := range entity {
if 1+len(k) < utf8.RuneLen(v) {
panic("escaped entity &" + k + " is shorter than its UTF-8 encoding " + string(v))
}
}
}
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