正则表达式:在行尾之前匹配文本 [英] Regex: Match the text before the end of line
问题描述
我有一个看起来像这样的文件:
I have a file that looks like this:
J6 INT-00113G 227.905 5.994 180 ~!@#$%&^)
J3 INT-00113G 227.905 -203.244 180 12341341312315
U13 EXCLUDES -42.210 181.294 180 QFP128
U3 IC-00276G 5.135 198.644 90 B%GA!@-48
U12 IC-00270G -123.610 -201.594 0 SOP8_000
J1 INT-00112G 269.665 179.894 180 SOIC16_1
J2 INT-00112G 269.665 198.144 180 SOIC16-_2
.. .......... ....... ....... ... ................
我想匹配 第6列 中的最终值,以便将其从列表中删除.第六列中值的长度不确定,可以包含任何字符.所以我想做的是在 space 之前匹配结束值.或只是行尾.
And I would like to match the end value in the 6th column in order to remove it from a list. The length of the value in the 6th column is undetermined and can contain any character. So what I would like to do is match the end value before a space. or just the end of the line.
代码:
CODE:
// Reads the lines in the file to format.
var fileReader = File.OpenText(filePath + "\\Remove Package 1 Endings.txt");
// Creates a list for the lines to be stored in.
var fileList = new List<string>();
// Adds each line in the file to the list.
while (true)
{
var line = fileReader.ReadLine();
if (line == null)
break;
fileList.Add(line);
}
var mainResult = new List<string>();
var theResult = new List<string>();
foreach (var mainLine in fileList)
mainResult.Add(string.Join(" ", mainLine));
foreach (var theLine in mainResult)
{
// PLACEMENT ONE Regex
Match theRegex = Regex.Match(theLine, @"insert the regex here!");
if (theRegex.Success)
theResult.Add(string.Join(" ", theLine));
}
// Removes the matched values from both of the Regex used above.
List<string> userResult = mainResult.Except(theResult).ToList();
// Prints the proper values into the assigned RichTextBoxes.
foreach (var line in userResult)
richTextBox2.AppendText(line + "\n");
我要执行的操作是使文件看起来像这样:
J6 INT-00113G 227.905 5.994 180
J3 INT-00113G 227.905 -203.244 180
U13 EXCLUDES -42.210 181.294 180
U3 IC-00276G 5.135 198.644 90
U12 IC-00270G -123.610 -201.594 0
J1 INT-00112G 269.665 179.894 180
J2 INT-00112G 269.665 198.144 180
问题:
QUESTION:
- 有人可以为此提供正则表达式吗?
添加的代码:
var lines = new List<string>(File.ReadAllLines(filePath + "\\Remove Package 1 Endings.txt"));
for (int i = 0; i < lines.Count; i++)
{
var idx = lines[i].LastIndexOf(" ");
if (idx != -1)
lines[i] = lines[i].Remove(idx);
richTextBox1.AppendText(lines[i] + Environment.NewLine
}
推荐答案
我认为您正在使它变得比实际更复杂.例如,以下内容可以帮助您删除数据的最后部分(如果按照示例进行格式化),并进行一些微调,例如修整(并且显然可以减少错误),我敢肯定这很适合:
I think that you're making this more complex than it really is; for instance, the following should help you removing the last part of the data if formatted as per your example, with a little tweaking, such as trimming (and, obviously, error mitigation), I'm sure this would suit:
var lines = new List<string>(File.ReadAllLines(path));
for (int i = 0; i < lines.Count; i++)
{
var idx = lines[i].LastIndexOf(" ");
if (idx != -1)
{
lines[i] = lines[i].Remove(idx);
}
}
请注意,可以一口气读取文件的所有行,根据要加载的文件的大小,并不总是需要这样做,但是我看到您无论如何都在加载每行处理-在这种情况下,我们可以使整个过程更加简洁.
Note that it is possible to read all lines of a file in one fell swoop, this isn't always desired depending on the size of the file to be loaded, but I see you're loading each of the lines anyway before processing - in which case we can just make the whole thing more concise.
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