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https://github.com/SerenityOS/serenity
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7bce096afd
We should work towards a pattern where we take StringView as function arguments, and store String as member, to push the String construction to the last possible moment.
55 lines
1.4 KiB
C++
55 lines
1.4 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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m_is_valid = canonicalize();
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}
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bool FileSystemPath::canonicalize(bool resolve_symbolic_links)
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{
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// FIXME: Implement "resolve_symbolic_links"
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(void)resolve_symbolic_links;
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auto parts = m_string.split('/');
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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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canonical_parts.append(part);
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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 true;
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}
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m_basename = canonical_parts.last();
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StringBuilder builder;
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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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return true;
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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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}
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