1
1
Fork 0
mirror of https://github.com/NixOS/nix.git synced 2025-12-12 20:11:03 +01:00
nix/src/libutil/table.cc
2025-12-03 18:43:56 +01:00

38 lines
963 B
C++

#include "nix/util/table.hh"
#include <algorithm>
#include <cassert>
#include <iostream>
#include <vector>
namespace nix {
void printTable(std::ostream & out, Table & table)
{
auto nrColumns = table.size() > 0 ? table.front().size() : 0;
std::vector<size_t> widths;
widths.resize(nrColumns);
for (auto & i : table) {
assert(i.size() == nrColumns);
size_t column = 0;
for (auto j = i.begin(); j != i.end(); ++j, ++column)
if (j->size() > widths[column])
widths[column] = j->size();
}
for (auto & i : table) {
size_t column = 0;
for (auto j = i.begin(); j != i.end(); ++j, ++column) {
std::string s = *j;
replace(s.begin(), s.end(), '\n', ' ');
out << s;
if (column < nrColumns - 1)
out << std::string(widths[column] - s.size() + 2, ' ');
}
out << std::endl;
}
}
} // namespace nix