搜索在C名称匹配.csv文件 [英] Search a .csv file for name match in C

问题描述

我目前有一个包含三个字段.csv文件：用户名，密码类型。例如，我的文件看起来是这样的：

I currently have a .csv file containing three fields: user, password, type. For instance, my file looks like this:

michael, sun123, user  
joseph, sierra7, user  
isaac, apple2, sysop 

我想从这些文件中读取并检查用户艾萨克在列表present。到目前为止，我能够打开该文件，并把我的文件的每个字符转换成一个名为数据库[]一维数组。我已经设置指着我的数据库[]数组的第一个字符的指针。我的问题是：如何管理文件中找到艾萨克？

I would like to read from such file and check if the user "isaac" is present in the list. So far, I was able to open the file and put every characters of my file into a 1D array called database[]. I have set a pointer pointing to the very first character of my database[] array. My question is: How do I manage to find "isaac" in the file?

我的想法是，以检查是否我找了用户的第一个字符在我的数组一个字符匹配。如果是这样，我开始只要我不打一个逗号来检查下一个字符。当我打一个逗号，然后我检查是否有退出密码，一个逗号和使用布尔回车前一种类型。是否有这样做的更简单的方法？

My idea was to check if the first character of the user I am looking for matches a character in my array. If so, I begin to check the next characters as long as I don't hit a comma. When I hit a comma, I then check if there exits a password, a comma and a type before a carriage return using boolean. Is there an easier way of doing this?

在此先感谢！

推荐答案

您可以使用的strstr的结果（数据库，艾萨克）; 找到艾萨克在你的数据库[] 。

You can use the result of strstr(database, "isaac"); to find "isaac" in your database[].

您可以使用 strtok的（或它是安全的变体，这里详细的 http://msdn.microsoft.com/en-us/library/ftsafwz3（v = VS.80）的.aspx ）打破你的数据库[] 成更易于管理的项目（即标记化的逗号和换行符），为您解析的需求。

You can use strtok (or it's safe variants, detailed here http://msdn.microsoft.com/en-us/library/ftsafwz3(v=vs.80).aspx) to break your database[] up into more manageable items (ie. tokenize on commas and newlines) for your parsing needs.

的组合 strtok的和的strstr 或 STRCMP 可能是你想要的东西。

A combination of strtok and strstr or strcmp may be what you want.

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