Zitrone
f6c4034e2f
also only give suggestions for unused arguments Change-Id: Iae8e72defbbe2571a803dfd7216745b39848ccb2
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#pragma once
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///@file
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#include <iostream>
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#include <algorithm>
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#include <iterator>
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#include <ranges>
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#include <sstream>
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namespace nix {
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/**
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* Pluralize a given value.
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*
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* If `count == 1`, prints `1 {single}` to `output`, otherwise prints `{count} {plural}`.
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*/
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std::ostream & pluralize(
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std::ostream & output,
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unsigned int count,
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const std::string_view single,
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const std::string_view plural);
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/** Concatenates a given iterator of strings with commas and 'and',
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* while transforming them with the given function.
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* e.g. ["foo", "bar", "baz"] might get concatenated to "foobar, barbar and bazbar".
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* the lambda for this might look like this:
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* `[](std::string & arg) { return arg + "bar"; };`
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*/
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template<typename F, std::ranges::input_range R>
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std::string concatStringsCommaAnd(F transform, const R & args)
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{
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std::stringstream result;
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if (args.size() != 0) {
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result << transform(*args.begin());
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}
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if (args.size() >= 2) {
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// will not do anything for size <= 2
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std::for_each(std::next(args.begin()), std::prev(args.end()), [&](auto const & arg) {
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result << ", " << transform(arg);
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});
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result << " and " << transform(*args.rbegin());
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}
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return result.str();
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};
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}
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