94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
#include "io.hpp"
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#include "iterator.hpp"
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#include "string.hpp"
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#include "view.hpp"
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#include "cpp.hpp"
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#include <iostream>
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#include <cstdlib>
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#include <fstream>
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enum {
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ARG_SELF,
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ARG_SRC,
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ARG_DST,
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MIN_ARGS = ARG_SRC+1,
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};
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#if 0
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///////////////////////////////////////////////////////////////////////////////
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void process (std::ostream &dst, const std::experimental::filesystem::path&);
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///////////////////////////////////////////////////////////////////////////////
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struct include {
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template <typename IteratorA, typename IteratorB>
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void
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operator() (std::ostream &dst, util::view<IteratorA,IteratorB> data)
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{
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if (data.size () < 3)
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throw std::invalid_argument ("invalid argument for include");
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if (data[0] != '"' || data[data.size()-1] != '"')
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throw std::invalid_argument ("invalid path specification");
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process (dst, {data.begin () + 1, data.end () - 1});
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}
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};
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///////////////////////////////////////////////////////////////////////////////
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void
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process (std::ostream &dst, const std::experimental::filesystem::path &src)
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{
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auto data = util::slurp<char> (src);
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include handler;
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for (const auto &l: util::tokeniser (data.data (), '\n')) {
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if (l.empty () || l[0] != '#') {
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dst << l << '\n';
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continue;
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}
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auto space = std::find (l.begin (), l.end (), ' ');
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handler (dst, util::view{space+1,l.end()});
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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int
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main (const int argc, const char **argv)
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{
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if (argc < 2) {
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std::cerr << argv[ARG_SELF] << " <src> [dst]\n";
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return EXIT_FAILURE;
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}
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std::experimental::filesystem::path src = argv[ARG_SRC];
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if (argc == 3) {
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std::ofstream dst (argv[ARG_DST]);
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process (dst, src);
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} else {
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process (std::cout, src);
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};
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};
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#endif
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int
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main (const int argc, const char **argv)
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{
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if (argc < 2) {
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std::cerr << argv[ARG_SELF] << " <src>\n";
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return EXIT_FAILURE;
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}
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util::cpp::processor cpp;
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cpp.process (std::cout, argv[ARG_SRC]);
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} |