43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
#pragma once
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#include <cstdint>
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#include <string>
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#include <vector>
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#include "sedpp/Options.h"
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namespace sedpp {
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// A loaded input record is sed's starting pattern space for one cycle. The
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// delimiter bit is carried separately so files without a trailing newline remain
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// distinguishable all the way to output.
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struct Record {
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std::string text;
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std::string fileName;
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bool hadDelimiter = false;
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bool lastInFile = false;
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bool lastOverall = false;
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std::uint64_t lineNumber = 0;
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std::uint64_t fileLineNumber = 0;
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};
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// Reads stdin or input files eagerly into records. Eager loading simplifies GNU
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// sed's $ address and in-place rewrite behavior, both of which need to know the
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// last record before the runner starts emitting final output.
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class InputLoader {
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public:
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explicit InputLoader(const Options &options);
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[[nodiscard]] std::vector<Record> loadAll() const;
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[[nodiscard]] std::vector<Record> loadFile(const std::string &fileName) const;
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private:
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[[nodiscard]] std::vector<Record> splitBuffer(const std::string &buffer,
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const std::string &fileName,
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std::uint64_t &globalLine) const;
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const Options &options_;
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};
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} // namespace sedpp
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