blob: c6df51ab4bfbd65513700b3d276dd2da16f11332 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_FONT_VARIANT_NUMERIC_PARSER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_FONT_VARIANT_NUMERIC_PARSER_H_
#include "third_party/blink/renderer/core/css/css_value_list.h"
#include "third_party/blink/renderer/core/css/parser/css_parser_token_range.h"
#include "third_party/blink/renderer/core/css/properties/css_parsing_utils.h"
namespace blink {
class FontVariantNumericParser {
STACK_ALLOCATED();
public:
FontVariantNumericParser() {}
enum class ParseResult { kConsumedValue, kDisallowedValue, kUnknownValue };
ParseResult ConsumeNumeric(CSSParserTokenRange& range) {
CSSValueID value_id = range.Peek().Id();
switch (value_id) {
case CSSValueID::kLiningNums:
case CSSValueID::kOldstyleNums:
if (numeric_figure_)
return ParseResult::kDisallowedValue;
numeric_figure_ = css_parsing_utils::ConsumeIdent(range);
return ParseResult::kConsumedValue;
case CSSValueID::kProportionalNums:
case CSSValueID::kTabularNums:
if (numeric_spacing_)
return ParseResult::kDisallowedValue;
numeric_spacing_ = css_parsing_utils::ConsumeIdent(range);
return ParseResult::kConsumedValue;
case CSSValueID::kDiagonalFractions:
case CSSValueID::kStackedFractions:
if (numeric_fraction_)
return ParseResult::kDisallowedValue;
numeric_fraction_ = css_parsing_utils::ConsumeIdent(range);
return ParseResult::kConsumedValue;
case CSSValueID::kOrdinal:
if (ordinal_)
return ParseResult::kDisallowedValue;
ordinal_ = css_parsing_utils::ConsumeIdent(range);
return ParseResult::kConsumedValue;
case CSSValueID::kSlashedZero:
if (slashed_zero_)
return ParseResult::kDisallowedValue;
slashed_zero_ = css_parsing_utils::ConsumeIdent(range);
return ParseResult::kConsumedValue;
default:
return ParseResult::kUnknownValue;
}
}
CSSValue* FinalizeValue() {
CSSValueList* result = CSSValueList::CreateSpaceSeparated();
if (numeric_figure_)
result->Append(*numeric_figure_);
if (numeric_spacing_)
result->Append(*numeric_spacing_);
if (numeric_fraction_)
result->Append(*numeric_fraction_);
if (ordinal_)
result->Append(*ordinal_);
if (slashed_zero_)
result->Append(*slashed_zero_);
if (result->length() > 0)
return result;
return CSSIdentifierValue::Create(CSSValueID::kNormal);
}
private:
CSSIdentifierValue* numeric_figure_ = nullptr;
CSSIdentifierValue* numeric_spacing_ = nullptr;
CSSIdentifierValue* numeric_fraction_ = nullptr;
CSSIdentifierValue* ordinal_ = nullptr;
CSSIdentifierValue* slashed_zero_ = nullptr;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_FONT_VARIANT_NUMERIC_PARSER_H_
|
