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954a0b8efe
This is the same as calling FileSystemPath(foo).string(). The majority of clients only care about canonicalizing a path, so let's have an easy way to express that.
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
#include "FileSystemPath.h"
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#include "StringBuilder.h"
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#include "Vector.h"
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#include "kstdio.h"
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namespace AK {
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FileSystemPath::FileSystemPath(const StringView& s)
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: m_string(s)
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{
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canonicalize();
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m_is_valid = true;
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}
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void FileSystemPath::canonicalize()
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{
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auto parts = m_string.split_view('/');
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int approximate_canonical_length = 0;
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Vector<String> canonical_parts;
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for (auto& part : parts) {
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if (part == ".")
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continue;
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if (part == "..") {
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if (!canonical_parts.is_empty())
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canonical_parts.take_last();
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continue;
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}
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if (!part.is_empty()) {
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approximate_canonical_length += part.length() + 1;
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canonical_parts.append(part);
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}
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}
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if (canonical_parts.is_empty()) {
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m_string = m_basename = "/";
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return;
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}
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m_basename = canonical_parts.last();
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StringBuilder builder(approximate_canonical_length);
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for (auto& cpart : canonical_parts) {
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builder.append('/');
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builder.append(cpart);
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}
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m_parts = move(canonical_parts);
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m_string = builder.to_string();
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}
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bool FileSystemPath::has_extension(StringView extension) const
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{
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// FIXME: This is inefficient, expand StringView with enough functionality that we don't need to copy strings here.
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String extension_string = extension;
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return m_string.to_lowercase().ends_with(extension_string.to_lowercase());
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}
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String canonicalized_path(const StringView& path)
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{
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return FileSystemPath(path).string();
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}
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}
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