LibreOffice Module configmgr (master) 1
partial.cxx
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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <sal/config.h>
21
22#include <cassert>
23#include <set>
24
25#include <com/sun/star/uno/RuntimeException.hpp>
26#include <rtl/ustring.hxx>
27#include <sal/types.h>
28
29#include "data.hxx"
30#include "partial.hxx"
31
32namespace configmgr {
33
34namespace {
35
36bool parseSegment(
37 OUString const & path, sal_Int32 * index, OUString * segment)
38{
39 assert(
40 index != nullptr && *index >= 0 && *index <= path.getLength() &&
41 segment != nullptr);
42 if (path[(*index)++] == '/') {
43 OUString name;
44 bool setElement;
45 OUString templateName;
47 path, *index, &name, &setElement, &templateName);
48 if (*index != -1) {
49 *segment = Data::createSegment(templateName, name);
50 return *index == path.getLength();
51 }
52 }
53 throw css::uno::RuntimeException("bad path " + path);
54}
55
56}
57
59 std::set< OUString > const & includedPaths,
60 std::set< OUString > const & excludedPaths)
61{
62 // The Partial::Node tree built up here encodes the following information:
63 // * Inner node, startInclude: an include starts here that contains excluded
64 // sub-trees
65 // * Inner node, !startInclude: contains in-/excluded sub-trees
66 // * Leaf node, startInclude: an include starts here
67 // * Leaf node, !startInclude: an exclude starts here
68 for (auto const& includedPath : includedPaths)
69 {
70 sal_Int32 n = 0;
71 for (Node * p = &root_;;) {
72 OUString seg;
73 bool end = parseSegment(includedPath, &n, &seg);
74 p = &p->children[seg];
75 if (p->startInclude) {
76 break;
77 }
78 if (end) {
79 p->children.clear();
80 p->startInclude = true;
81 break;
82 }
83 }
84 }
85 for (auto const& excludedPath : excludedPaths)
86 {
87 sal_Int32 n = 0;
88 for (Node * p = &root_;;) {
89 OUString seg;
90 bool end = parseSegment(excludedPath, &n, &seg);
91 if (end) {
92 p->children[seg].clear();
93 break;
94 }
95 Node::Children::iterator j(p->children.find(seg));
96 if (j == p->children.end()) {
97 break;
98 }
99 p = &j->second;
100 }
101 }
102}
103
105
106Partial::Containment Partial::contains(std::vector<OUString> const & path) const {
107 //TODO: For set elements, the segment names recorded in the node tree need
108 // not match the corresponding path segments, so this function can fail.
109
110 // * If path ends at a leaf node or goes past a leaf node:
111 // ** If that leaf node is startInclude: => CONTAINS_NODE
112 // ** If that leaf node is !startInclude: => CONTAINS_NOT
113 // * If path ends at inner node:
114 // ** If there is some startInclude along its trace: => CONTAINS_NODE
115 // ** If there is no startInclude along its trace: => CONTAINS_SUBNODES
116 Node const * p = &root_;
117 bool bIncludes = false;
118 for (auto const& elemPath : path)
119 {
120 Node::Children::const_iterator j(p->children.find(elemPath));
121 if (j == p->children.end()) {
122 return p->startInclude ? CONTAINS_NODE : CONTAINS_NOT;
123 }
124 p = &j->second;
125 bIncludes |= p->startInclude;
126 }
127 return p->children.empty() && !p->startInclude
129 : bIncludes ? CONTAINS_NODE : CONTAINS_SUBNODES;
130}
131
132}
133
134/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Partial(std::set< OUString > const &includedPaths, std::set< OUString > const &excludedPaths)
Definition: partial.cxx:58
Containment contains(std::vector< OUString > const &path) const
Definition: partial.cxx:106
OUString name
Definition: components.cxx:85
void * p
sal_Int64 n
std::set< OUString > includedPaths
std::set< OUString > excludedPaths
index
end
static sal_Int32 parseSegment(OUString const &path, sal_Int32 index, OUString *name, bool *setElement, OUString *templateName)
Definition: data.cxx:112
static OUString createSegment(std::u16string_view templateName, OUString const &name)
Definition: data.cxx:81