cutils.cls

GPS测量数据处理源码

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "CParseUtils"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_Ext_KEY = "SavedWithClassBuilder" ,"Yes"
Attribute VB_Ext_KEY = "Top_Level" ,"Yes"
'Class name:    CParseUtils.cls

Option Explicit

Friend Function CountParts(sString As String, Optional sDelim As String) As Byte
' 返回协议串中用"，"分割的节数

    Dim textPos As Integer
    Dim maxPos As Integer
    Dim cnt As Integer
    
    If Len(sDelim) = 0 Then sDelim = ","
    
    If Len(sString) = 0 Then
        CountParts = 0
        Exit Function
    End If
    
          textPos = 1
          maxPos = Len(sString)
          cnt = 0
          
          Do While textPos <= maxPos
                If Mid$(sString, textPos, 1) = sDelim Then
                    cnt = cnt + 1
                End If
            textPos = textPos + 1
          Loop
          
    If cnt = 0 Then
        CountParts = cnt
    Else
        CountParts = cnt + 1
        End If
        
End Function

Friend Function Parse(ByVal sString As String, iReq As Integer, Optional sDelim As String) As String
    '分割字符串内容
    Dim sSt As String
    Dim iCnt As Integer
    Dim iPos As Integer

    If Len(sDelim) = 0 Then sDelim = ","
    sSt = sString & sDelim
    For iCnt = 1 To iReq
        iPos = InStr(sSt, sDelim)
        If iPos Then
            If iCnt = iReq Then    ' 请求字符串
                Parse = Left$(sSt, iPos - 1)
                Exit For
            End If
            
            If iPos = Len(sSt) Then
                Parse = ""
                Exit For
            End If
            sSt = Mid$(sSt, iPos + Len(sDelim))
        Else
            Parse = sSt
            Exit For
        End If
    Next iCnt
End Function