mirror of
https://github.com/NixOS/nix.git
synced 2025-12-10 11:01:03 +01:00
0e35cd6f3e
* It is tough to contribute to a project that doesn't use a formatter, * It is extra hard to contribute to a project which has configured the formatter, but ignores it for some files * Code formatting makes it harder to hide obscure / weird bugs by accident or on purpose, Let's rip the bandaid off? Note that PRs currently in flight should be able to be merged relatively easily by applying `clang-format` to their tip prior to merge. Co-authored-by: Graham Christensen <graham@grahamc.com>
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
#include "nix/util/hilite.hh"
|
|
|
|
namespace nix {
|
|
|
|
std::string
|
|
hiliteMatches(std::string_view s, std::vector<std::smatch> matches, std::string_view prefix, std::string_view postfix)
|
|
{
|
|
// Avoid extra work on zero matches
|
|
if (matches.size() == 0)
|
|
return std::string(s);
|
|
|
|
std::sort(
|
|
matches.begin(), matches.end(), [](const auto & a, const auto & b) { return a.position() < b.position(); });
|
|
|
|
std::string out;
|
|
ssize_t last_end = 0;
|
|
|
|
for (auto it = matches.begin(); it != matches.end();) {
|
|
auto m = *it;
|
|
size_t start = m.position();
|
|
out.append(s.substr(last_end, m.position() - last_end));
|
|
// Merge continous matches
|
|
ssize_t end = start + m.length();
|
|
while (++it != matches.end() && (*it).position() <= end) {
|
|
auto n = *it;
|
|
ssize_t nend = start + (n.position() - start + n.length());
|
|
if (nend > end)
|
|
end = nend;
|
|
}
|
|
out.append(prefix);
|
|
out.append(s.substr(start, end - start));
|
|
out.append(postfix);
|
|
last_end = end;
|
|
}
|
|
|
|
out.append(s.substr(last_end));
|
|
return out;
|
|
}
|
|
|
|
} // namespace nix
|