[英]How can I filter a TXT file using VB.NET?
I have a txt file that displays the following information returned by AutoCAD: 我有一个txt文件,其中显示了AutoCAD返回的以下信息:
; IAcadToolbar: An AutoCAD toolbar
; Property values:
; Application (RO) = #<VLA-OBJECT IAcadApplication 00d591b4>
; Count (RO) = 19
; DockStatus (RO) = 4
; FloatingRows = 5
; Height (RO) = AutoCAD: The toolbar is invisible. Please make it visible
; HelpString = "Draw Toolbar\n "
; LargeButtons (RO) = 0
; left = 1310
; Name = "Draw"
; Parent (RO) = #<VLA-OBJECT IAcadToolbars 224a6b04>
; TagString (RO) = "ID_TbDraw"
; top = 646
; Visible = 0
; Width (RO) = AutoCAD: The toolbar is invisible. Please make it visible
; Methods supported:
; AddSeparator (1)
; AddToolbarButton (5)
; Delete ()
; Dock (1)
; Float (3)
; Item (1)
Problem being is that I need to filter it so I am only left with: 问题是我需要过滤它,所以我只剩下:
; DockStatus (RO) = 4
; left = 1310
; Name = "Draw"
; top = 646
; Visible = 0
They must also remain in the same order: 它们还必须保持相同的顺序:
; DockStatus (RO) = 4
; DockStatus (RO) = 4
always on top followed by ; left = 1310
; DockStatus (RO) = 4
总是在最前面,然后是; left = 1310
; left = 1310
and so on, all other information may be discarded. ; left = 1310
,依此类推,所有其他信息都可能被丢弃。
Dose anybody know how to do this in VB.NET? 有人知道如何在VB.NET中做到这一点吗?
Imports System.IO
Imports System.Text
Dim output = New StringBuilder()
' Read the lines from FileName into an array of strings. '
Dim input = File.ReadAllLines(FileName)
For Each line in input
If line.StartsWith("; DockStatus (RO) = ") OrElse
line.StartsWith("; left = ") OrElse
line.StartsWith("; Name = ") OrElse
line.StartsWith("; top = ") OrElse
line.StartsWith("; Visible = ") Then
output.AppendLine(line)
End If
Next
Ok, assuming that you've got a file that you're reading line by line, can't you simply do something like this? 好的,假设您有一个要逐行读取的文件,难道您不能简单地做这样的事情吗? (pseudo code only) (仅限伪代码)
string result;
foreach line in linesFromFile
{
if(line.StartsWith("; DockStatus") or
line.StartsWith("; Name = "))
{
result += line;
}
}
What I've presented is not pretty, but might get you started. 我介绍的内容并不漂亮,但可能会让您入门。
我建议将所有值都放在字符串中,然后使用分割器,然后过滤掉所需的值,并对它们进行排序,以便在需要时将它们转换为所需的输出格式
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