最小修改實現5UCMS IF語句的嵌套

 將 inc\class_template.asp 458行的 Parser_IF 函數整體註釋掉，改成下面兩個函數

 

Public Function Parser_IF()
  Dim PreLB
  PreLB = ""
  Parser_IF2(PreLB)
End Function

' 判斷標籤

Public Function Parser_IF2(ByVal PreLB)
  On Error Resume Next
  Dim Matches, Match,TestIF,TestVal,TestTrue,TestFalse
  Dim NewPreLB
  Reg.Pattern = "{" & PreLB & "If:(.+?)}([\s\S]*?){" & PreLB & "End If}"
  Set Matches = Reg.Execute(Content)
  For Each Match In Matches
   TestVal=Match.SubMatches(1)
   If Instr(LCase(TestVal), "{" & PreLB & "else}")>0 Then
    TestVal=Replace(TestVal, "{" & PreLB & "else}", "{" & PreLB & "else}",1,-1,1):TestTrue=Split(TestVal, "{" & PreLB & "else}")(0):TestFalse=Split(TestVal, "{" & PreLB & "else}")(1)
   Else
    TestTrue=TestVal:TestFalse=""
   End If
   Execute ("If " & replace(Match.SubMatches(0),"'","""") & " Then TestIf = True Else TestIf = False")
   If TestIF Then Content = Replace(Content, Match.Value, TestTrue) Else Content = Replace(Content, Match.Value, TestFalse)
   If Err Then Response.Write "<font color=red>" & Lang_Parser_IF_Error & "[" & Match.SubMatches(0) & "]" & Err.Description & "</font>": Err.Clear: Response.End
  Next
  NewPreLB = PreLB & "-"
  If RegExists("{" & NewPreLB & "If:(.+?)}([\s\S]*?){ & NewPreLB & "End If}", Content) Then Call Parser_IF2(NewPreLB)  ' 多次調用
End Function

 

前臺模板用法

{if: XXXX}
  {-if: XXXX}
  {-else}
    .....
  {-End if}
{else}
  .....
{end if}

即在嵌套的IF語句前加“-”，同理兩級嵌套加兩個，以此類推，層次足夠用