在编程和文本编辑领域,一个功能强大的编辑器对于提高工作效率至关重要。本文将介绍一个名为IRTB2的增强型文本编辑器,它集成了多种实用功能,如语法高亮、行号显示、代码编辑等,旨在为用户提供更加便捷的编程体验。
IRTB2编辑器以其丰富的特性,对于任何使用标签化文本编辑器的用户来说都是一个有力的助手。它的易用性体现在语法高亮功能上,虽然这可能需要一些时间来掌握,但一旦熟悉,它将大大提高代码的可读性和编辑效率。
IRTB2在原有IRTB的基础上进行了改进和增强。主要变化包括:
IRTB2的语法高亮功能是其核心特性之一。它通过正则表达式匹配关键字,并以不同的颜色高亮显示,使得代码结构更加清晰。以下是使用VB.NET实现语法高亮的示例代码:
Public Shared Sub HighlightKeyWordRegex(ByVal irtb2 As IRTBTwo, _
ByVal words As List(Of String), _
ByVal color As Color, _
Optional ByVal useBlack As Boolean = True, _
Optional ByVal HighlightRange As HighlightRange = HighlightRange.All)
If irtb2.IsSyntaxEnabled Then
Dim pos As Int32 = irtb2.SelectionStart
Dim oldc As Color = irtb2.SelectionColor
If useBlack Then oldc = Drawing.Color.Black
Dim cline As Integer = irtb2.GetLineFromCharIndex(irtb2.GetFirstCharIndexOfCurrentLine)
Dim start As Integer = irtb2.GetFirstCharIndexOfCurrentLine
IRTBTwo.LockWindowUpdate(irtb2.Handle)
For Each word As String In words
If HighlightRange = HighlightRange.All Then
Dim x As MatchCollection = New Regex(word.ToUpper).Matches(irtb2.Text.ToUpper)
For Each Match As Match In x
irtb2.Find(word, Match.Index, RichTextBoxFinds.WholeWord)
irtb2.SelectionColor = color
irtb2.DeselectAll()
irtb2.SelectionStart = pos
irtb2.SelectionColor = oldc
Next
ElseIf HighlightRange = HighlightRange.CurrentLine Then
Dim x As MatchCollection = New Regex(word.ToUpper).Matches(irtb2.Lines(cline).ToUpper)
For Each Match As Match In x
irtb2.Find(word, start + Match.Index, RichTextBoxFinds.WholeWord)
irtb2.SelectionColor = color
irtb2.DeselectAll()
irtb2.SelectionStart = pos
irtb2.SelectionColor = oldc
Next
ElseIf HighlightRange = HighlightRange.View Then
Dim i As Integer = irtb2.GetFirstVisibleLine
Dim x As MatchCollection
Do While i <= irtb2.GetLastVisibleLine
x = New Regex(word.ToUpper).Matches(irtb2.Lines(i).ToUpper)
For Each Match As Match In x
irtb2.Find(word, irtb2.GetFirstCharIndexFromLine(i) + _
Match.Index, RichTextBoxFinds.WholeWord)
irtb2.SelectionColor = color
irtb2.DeselectAll()
irtb2.SelectionStart = pos
irtb2.SelectionColor = oldc
Next
i += 1
Loop
End If
Next
IRTBTwo.LockWindowUpdate(IntPtr.Zero)
Dim E As New SyntaxHighlightingEventArgs(irtb2, _
SyntaxHighlightingEventArgs.SyntaxMethods.Regex)
irtb2.OnSyntaxApplied(E)
End If
End Sub
IRTB2提供了获取当前行号和列号的功能,这对于代码编辑和调试非常有用。以下是获取行号和列号的示例代码:
Dim GetFirstCharIndex As Integer = Me.GetFirstCharIndexOfCurrentLine
Dim GetRTBLine = Me.GetLineFromCharIndex(GetFirstCharIndex)
Dim GetPosition As Integer = Me.SelectionStart - GetFirstCharIndex
GetPosition = GetPosition + 1
GetRTBLine = GetRTBLine + 1
Dim x As Integer() = {GetRTBLine, GetPosition}
Return x
虽然IRTB2目前不支持自动缩进,但它提供了添加和移除缩进的功能。用户可以通过调用CreateIdent或RemoveIdent方法来手动调整缩进。
在2.3版本中,IRTB2引入了一些新特性,包括:
在使用IRTB2时,需要注意以下几点: