MatchQuotesPastEndOfLine
发布日期:2021-05-10 03:51:00 浏览次数:17 分类:精选文章

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My name is XXX, and I'm going to talk about this technical issue I encountered. I've been working on this project where we process some flat files, and one of the things we came across is how to handle fields that span across multiple lines, especially when the values are enclosed in double quotes.

So, there's this setting called "MatchQuotesPastEndOfLine" which can be set to either Yes or No. This means that when processing the file, we can decide whether to treat the text between double quotes as a single field value or to split it across lines. Let me explain how this works.

First, here's the setup: the flat file has multiple records, each with different fields. In some cases, the field values are spread across multiple lines because they're too long or contain commas and other delimiters. Now, the tricky part is determining whether the data between the quotes should be treated as a single value or should be split into multiple lines.

Let me take an example to make this clearer. Suppose we have a record like this:

002, Jack, "������, ������, ������"

If we set MatchQuotesPastEndOfLine to Yes, then the entire string "������, ������, ������" will be treated as one field value for Jack's city. This is great because it keeps the data intact and avoids splitting it unnecessarily.

However, if we set MatchQuotesPastEndOfLine to No, things get a bit different. The quotes around "������" would close at the end of the first line, making "������" a separate city field. Then "������" would remain in the same line, but "������" would start a new line, possibly under the next record. This can cause confusion and mess up the data structure.

This leads me to think about how this setting impacts data consistency and processing. When set to Yes, we don't have to worry about line breaks affecting the data as long as they're enclosed in quotes. But when set to No, we need to be extra cautious about line breaks and make sure everything is in the right place.

In our project, we decided to go with Yes for this setting because most of our data has city names spread across multiple lines and we wanted to simplify the processing. It also makes the data more readable when we look at the files.

One thing I was concerned about was whether this setting would interfere with other parsing logic. But after reviewing the code and testing it a few times, it seems to handle the data without issues. The quotes are preserved correctly, and the splitting only applies to text that's not enclosed in quotes.

I also thought about alternative solutions, like adding a special flag in the data itself to indicate that a value spans multiple lines. But that would complicate the data format and require changes in how we handle field parsing. So, using the MatchQuotesPastEndOfLine setting seemed more straightforward.

To summarize, setting MatchQuotesPastEndOfLine to Yes has been reliable in handling multi-line city names while keeping the data structured and easy to process. It's a useful tool to simplify data handling in cases like these.

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第一次来,支持一个
[***.219.124.196]2025年04月20日 13时52分02秒