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https://github.com/moses-smt/mosesdecoder.git
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88e90957a1
This is one of those little chores in managing a long-lived C++ project: standard C headers like stdio.h and math.h now have their own place in the C++ standard as resp. cstdio, cmath, and so on. In this branch the #include names are updated for the util/ subdirectory; more branches to follow. C++11 adds cstdint, but to support compilation with the previous standard, that change is left for later.
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
// Like cat but interprets compressed files.
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#include "util/file.hh"
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#include "util/read_compressed.hh"
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#include <cstring>
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#include <iostream>
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namespace {
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const std::size_t kBufSize = 16384;
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void Copy(util::ReadCompressed &from, int to) {
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util::scoped_malloc buffer(util::MallocOrThrow(kBufSize));
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while (std::size_t amount = from.Read(buffer.get(), kBufSize)) {
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util::WriteOrThrow(to, buffer.get(), amount);
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}
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}
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} // namespace
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int main(int argc, char *argv[]) {
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// Lane Schwartz likes -h and --help
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for (int i = 1; i < argc; ++i) {
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char *arg = argv[i];
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if (!strcmp(arg, "--")) break;
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if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
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std::cerr <<
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"A cat implementation that interprets compressed files.\n"
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"Usage: " << argv[0] << " [file1] [file2] ...\n"
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"If no file is provided, then stdin is read.\n";
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return 1;
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}
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}
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try {
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if (argc == 1) {
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util::ReadCompressed in(0);
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Copy(in, 1);
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} else {
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for (int i = 1; i < argc; ++i) {
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util::ReadCompressed in(util::OpenReadOrThrow(argv[i]));
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Copy(in, 1);
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}
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}
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} catch (const std::exception &e) {
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std::cerr << e.what() << std::endl;
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return 2;
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}
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return 0;
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}
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