blob: 775cf10aff6829b662a4130340c91c2978b9f87e (
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
|
// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "codesniphelpers.h"
#include <QtCore/QStringList>
#include <algorithm>
static inline int firstNonBlank(QStringView s)
{
const auto it = std::find_if(s.cbegin(), s.cend(),
[] (QChar c) { return !c.isSpace(); });
return int(it - s.cbegin());
}
static inline bool isEmpty(QStringView s)
{
return s.isEmpty()
|| std::all_of(s.cbegin(), s.cend(),
[] (QChar c) { return c.isSpace(); });
}
QString CodeSnipHelpers::dedent(const QString &code)
{
if (code.isEmpty())
return code;
// Right trim if indent=0, or trim if single line
if (!code.at(0).isSpace() || !code.contains(u'\n'))
return code.trimmed();
const auto lines = QStringView{code}.split(u'\n');
int spacesToRemove = std::numeric_limits<int>::max();
for (const auto &line : lines) {
if (!isEmpty(line)) {
const int nonSpacePos = firstNonBlank(line);
if (nonSpacePos < spacesToRemove)
spacesToRemove = nonSpacePos;
if (spacesToRemove == 0)
return code;
}
}
QString result;
for (const auto &line : lines) {
if (!isEmpty(line) && spacesToRemove < line.size())
result += line.mid(spacesToRemove).toString();
result += u'\n';
}
return result;
}
QString CodeSnipHelpers::fixSpaces(QString code)
{
code.remove(u'\r');
// Check for XML <tag>\n<space>bla...
if (code.startsWith(u"\n "))
code.remove(0, 1);
while (!code.isEmpty() && code.back().isSpace())
code.chop(1);
code = dedent(code);
if (!code.isEmpty() && !code.endsWith(u'\n'))
code.append(u'\n');
return code;
}
// Prepend a line to the code, observing indentation
void CodeSnipHelpers::prependCode(QString *code, QString firstLine)
{
while (!code->isEmpty() && code->front() == u'\n')
code->remove(0, 1);
if (!code->isEmpty() && code->front().isSpace()) {
const int indent = firstNonBlank(*code);
firstLine.prepend(QString(indent, u' '));
}
if (!firstLine.endsWith(u'\n'))
firstLine += u'\n';
code->prepend(firstLine);
}
|
