emkornfield commented on a change in pull request #11849:
URL: https://github.com/apache/arrow/pull/11849#discussion_r763307792
##########
File path: cpp/src/arrow/csv/writer.cc
##########
@@ -72,11 +72,29 @@ RecordBatchIterator RecordBatchSliceIterator(const
RecordBatch& batch,
return RecordBatchIterator(std::move(functor));
}
-// Counts the number of characters that need escaping in s.
-int64_t CountEscapes(util::string_view s) {
+// Counts the number of quotes in s.
+int64_t CountQuotes(util::string_view s) {
return static_cast<int64_t>(std::count(s.begin(), s.end(), '"'));
}
+// Counts the number of CSV structural characters in s.
+int64_t CountStructuralChars(util::string_view s) {
Review comment:
```
int64_t CountStructuralChars2(const std::string& s) {
int64_t result = 0;
for (const auto c : s) {
result += c == '"';
result += c =='\n';
result += c == '\r';
result += c == ',';
}
return result;
}
```
Allows for auto-vectorization.
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