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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/StringBuilder.h>
#include <LibMarkdown/CodeBlock.h>
#include <LibMarkdown/Document.h>
#include <LibMarkdown/Heading.h>
#include <LibMarkdown/List.h>
#include <LibMarkdown/Paragraph.h>
#include <LibMarkdown/Table.h>
namespace Markdown {
String Document::render_to_html() const
{
StringBuilder builder;
builder.append("<!DOCTYPE html>\n");
builder.append("<html>\n");
builder.append("<head></head>\n");
builder.append("<body>\n");
for (auto& block : m_blocks) {
auto s = block.render_to_html();
builder.append(s);
}
builder.append("</body>\n");
builder.append("</html>\n");
return builder.build();
}
String Document::render_for_terminal(size_t view_width) const
{
StringBuilder builder;
for (auto& block : m_blocks) {
auto s = block.render_for_terminal(view_width);
builder.append(s);
}
return builder.build();
}
template<typename BlockType>
static bool helper(Vector<StringView>::ConstIterator& lines, NonnullOwnPtrVector<Block>& blocks)
{
OwnPtr<BlockType> block = BlockType::parse(lines);
if (!block)
return false;
blocks.append(block.release_nonnull());
return true;
}
OwnPtr<Document> Document::parse(const StringView& str)
{
const Vector<StringView> lines_vec = str.lines();
auto lines = lines_vec.begin();
auto document = make<Document>();
auto& blocks = document->m_blocks;
NonnullOwnPtrVector<Paragraph::Line> paragraph_lines;
auto flush_paragraph = [&] {
if (paragraph_lines.is_empty())
return;
auto paragraph = make<Paragraph>(move(paragraph_lines));
document->m_blocks.append(move(paragraph));
paragraph_lines.clear();
};
while (true) {
if (lines.is_end())
break;
if ((*lines).is_empty()) {
++lines;
flush_paragraph();
continue;
}
bool any = helper<Table>(lines, blocks) || helper<List>(lines, blocks) || helper<CodeBlock>(lines, blocks)
|| helper<Heading>(lines, blocks);
if (any) {
if (!paragraph_lines.is_empty()) {
auto last_block = document->m_blocks.take_last();
flush_paragraph();
document->m_blocks.append(move(last_block));
}
continue;
}
auto line = Paragraph::Line::parse(lines);
if (!line)
return nullptr;
paragraph_lines.append(line.release_nonnull());
}
if (!paragraph_lines.is_empty())
flush_paragraph();
return document;
}
}
|
