Files
vba/vba_code_common.bas
2026-04-14 14:12:47 +09:00

371 lines
11 KiB
QBasic

' ============================================================
' Common Functions
' ============================================================
Function CleanCSVField(ByVal field As Variant) As String
If IsEmpty(field) Or IsNull(field) Then
CleanCSVField = ""
Exit Function
End If
Dim result As String
result = Trim(CStr(field))
If Len(result) >= 2 Then
If Left(result, 1) = """" And Right(result, 1) = """" Then
result = Mid(result, 2, Len(result) - 2)
result = Replace(result, """""", """")
End If
End If
CleanCSVField = result
End Function
Function ValidateCSVColumnCount(ByVal lines As Variant, ByVal expectedColumns As Long) As Boolean
ValidateCSVColumnCount = True
Dim lineNum As Long
Dim dataArray As Variant
Dim validRowCount As Long
validRowCount = 0
For lineNum = 0 To UBound(lines)
If Trim(lines(lineNum)) <> "" Then
dataArray = Split(lines(lineNum), ",")
If UBound(dataArray) + 1 <> expectedColumns Then
MsgBox "CSV line " & (lineNum + 1) & " has " & (UBound(dataArray) + 1) & " columns. Expected " & expectedColumns & ".", vbExclamation
ValidateCSVColumnCount = False
Exit Function
End If
validRowCount = validRowCount + 1
End If
Next lineNum
If validRowCount = 0 Then
MsgBox "No valid data in CSV.", vbExclamation
ValidateCSVColumnCount = False
End If
End Function
Function GetLastDataRow(ByVal ws As Worksheet, ByVal columnNum As Long) As Long
GetLastDataRow = ws.Cells(ws.Rows.Count, columnNum).End(xlUp).Row
End Function
Sub ClearDataRows(ByVal ws As Worksheet, ByVal startRow As Long, ByVal columnNum As Long)
Dim lastRow As Long
lastRow = ws.Cells(ws.Rows.Count, columnNum).End(xlUp).Row
If lastRow >= startRow Then
ws.Range(ws.Cells(startRow, 1), ws.Cells(lastRow, 20)).ClearContents
End If
End Sub
Function SelectCSVFile() As String
Dim fileDialog As FileDialog
Set fileDialog = Application.FileDialog(msoFileDialogFilePicker)
With fileDialog
.Filters.Clear
.Filters.Add "CSV Files", "*.csv"
.AllowMultiSelect = False
If .Show <> -1 Then
SelectCSVFile = ""
Exit Function
End If
SelectCSVFile = .SelectedItems(1)
End With
End Function
Function GetSaveCSVPath(Optional ByVal defaultName As String = "") As String
Dim savePath As String
savePath = Application.GetSaveAsFilename( _
FileFilter:="CSV Files (*.csv), *.csv", _
Title:="Save CSV", _
InitialFileName:=defaultName)
If savePath = "False" Or savePath = "" Then
GetSaveCSVPath = ""
Exit Function
End If
If InStr(1, savePath, ".csv", vbTextCompare) = 0 Then
savePath = savePath & ".csv"
End If
GetSaveCSVPath = savePath
End Function
Sub WriteCSVFile(ByVal filePath As String, ByVal content As String)
Dim stream As Object
Set stream = CreateObject("ADODB.Stream")
With stream
.Type = 2
.Charset = "shift_jis"
.Open
.WriteText content, 0
.SaveToFile filePath, 2
.Close
End With
End Sub
Function ReadCSVFile(ByVal filePath As String, Optional ByVal charset As String = "shift_jis") As Variant
If filePath = "" Then
ReadCSVFile = Array()
Exit Function
End If
Dim stream As Object
Dim textContent As String
Set stream = CreateObject("ADODB.Stream")
With stream
.Type = 2
.Charset = charset
.Open
.LoadFromFile filePath
textContent = .ReadText
.Close
End With
ReadCSVFile = Split(textContent, vbLf)
End Function
' Read a CSV file and return its content as a strict 2D array (1-based).
' The function ensures all rows have the same number of columns as the first row.
' If any row has a different column count, an error is raised immediately.
' Parameters:
' filePath: Full path to the CSV file.
' charset: Text encoding (e.g., "cp932" for Shift-JIS, "utf-8" for UTF-8).
Function ReadCSVAs2DArrayStrict(ByVal filePath As String, Optional ByVal charset As String = "cp932") As Variant
' Check if file exists
If filePath = "" Or Dir(filePath) = "" Then
Err.Raise vbObjectError + 1001, , "File not found: " & filePath
End If
' Read entire file using ADODB.Stream with specified character set
Dim stream As Object
Set stream = CreateObject("ADODB.Stream")
With stream
.Type = 2 ' adTypeText
.Charset = charset
.Open
.LoadFromFile filePath
Dim textContent As String
textContent = .ReadText
.Close
End With
' Handle empty file
If textContent = "" Then
Err.Raise vbObjectError + 1002, , "CSV file is empty"
End If
' Normalize line breaks to vbLf (\n)
textContent = Replace(textContent, vbCrLf, vbLf)
textContent = Replace(textContent, vbCr, vbLf)
' Parse CSV lines into a collection of string arrays
Dim lines As Collection
Set lines = ParseCSVLines(textContent)
If lines.Count = 0 Then
Err.Raise vbObjectError + 1003, , "No valid rows parsed from CSV"
End If
' Determine expected column count from the first row
Dim expectedCols As Long
Dim firstRow As Variant
firstRow = lines(1)
expectedCols = UBound(firstRow) - LBound(firstRow) + 1
If expectedCols <= 0 Then
Err.Raise vbObjectError + 1004, , "First row contains no fields"
End If
' Validate every row has exactly expectedCols columns
Dim i As Long
For i = 1 To lines.Count
Dim currentRow As Variant
currentRow = lines(i)
Dim actualCols As Long
actualCols = UBound(currentRow) - LBound(currentRow) + 1
If actualCols <> expectedCols Then
Err.Raise vbObjectError + 1005, , _
"CSV row column count mismatch!" & vbCrLf & _
"Expected columns: " & expectedCols & vbCrLf & _
"Row " & i & " has " & actualCols & " columns."
End If
Next i
' Build 1-based 2D result array (no padding needed due to strict validation)
Dim result As Variant
ReDim result(1 To lines.Count, 1 To expectedCols)
For i = 1 To lines.Count
currentRow = lines(i)
Dim j As Long
For j = LBound(currentRow) To UBound(currentRow)
result(i, j - LBound(currentRow) + 1) = currentRow(j)
Next j
Next i
ReadCSVAs2DArrayStrict = result
End Function
' Parse CSV text into a Collection of string arrays, respecting RFC 4180 rules.
' Handles quoted fields, commas/line breaks inside quotes, and escaped quotes ("").
' Input: CSV text with normalized line endings (vbLf only).
' Output: Collection where each item is a zero-based array of field strings.
Private Function ParseCSVLines(ByVal csvText As String) As Collection
Set ParseCSVLines = New Collection
Dim length As Long
length = Len(csvText)
If length = 0 Then Exit Function
Dim i As Long
i = 1
Dim currentField As String
Dim currentRow As Collection
Set currentRow = New Collection
Dim inQuotes As Boolean
Dim c As String
Do While i <= length
c = Mid$(csvText, i, 1)
Select Case c
Case """"
If inQuotes Then
' Check for escaped quote ("")
If i < length And Mid$(csvText, i + 1, 1) = """" Then
currentField = currentField & """"
i = i + 2 ' Skip both quotes
Else
inQuotes = False
i = i + 1
End If
Else
inQuotes = True
i = i + 1
End If
Case ","
If inQuotes Then
currentField = currentField & c
i = i + 1
Else
' End of field
currentRow.Add currentField
currentField = ""
i = i + 1
End If
Case vbLf
If inQuotes Then
currentField = currentField & c
i = i + 1
Else
' End of row
currentRow.Add currentField
' Convert collection to array
Dim arr() As String
If currentRow.Count > 0 Then
ReDim arr(0 To currentRow.Count - 1)
Dim k As Long
For k = 1 To currentRow.Count
arr(k - 1) = currentRow(k)
Next k
End If
ParseCSVLines.Add arr
' Reset for next row
Set currentRow = New Collection
currentField = ""
inQuotes = False
i = i + 1
End If
Case Else
currentField = currentField & c
i = i + 1
End Select
Loop
' Handle last row if file doesn't end with newline
If currentField <> "" Or currentRow.Count > 0 Then
currentRow.Add currentField
Dim lastArr() As String
If currentRow.Count > 0 Then
ReDim lastArr(0 To currentRow.Count - 1)
Dim m As Long
For m = 1 To currentRow.Count
lastArr(m - 1) = currentRow(m)
Next m
End If
ParseCSVLines.Add lastArr
End If
End Function
Sub SortDataRows(Optional ByVal sortColumn As Long = 3)
Dim ws As Worksheet
Dim lastRow As Long
Dim startRow As Long
Dim sortOrder As Long
Set ws = ActiveSheet
startRow = 7
lastRow = GetLastDataRow(ws, sortColumn)
If lastRow < startRow Then
MsgBox "No data to sort.", vbExclamation
Exit Sub
End If
' Determine sort order based on first row's current state
Dim currentFirst As String
Dim nextFirst As String
currentFirst = Trim(ws.Cells(startRow, sortColumn).Value)
nextFirst = Trim(ws.Cells(startRow + 1, sortColumn).Value)
If currentFirst <> "" And nextFirst <> "" Then
If currentFirst > nextFirst Then
sortOrder = xlAscending
Else
sortOrder = xlDescending
End If
Else
sortOrder = xlAscending
End If
ws.Range(ws.Cells(startRow, 1), ws.Cells(lastRow, 20)).Sort _
Key1:=ws.Cells(startRow, sortColumn), _
Order1:=sortOrder, _
Header:=xlNo
End Sub
Sub ToggleAutoFilter(Optional ByVal filterRow As Long = 6)
Dim ws As Worksheet
Set ws = ActiveSheet
' Check if auto filter is already on
If ws.AutoFilterMode Then
ws.AutoFilterMode = False
Else
If filterRow >= 1 Then
ws.Rows(filterRow).AutoFilter
End If
End If
End Sub
Sub AutoFitColumnWidth(Optional ByVal fitColumnStart As Long = 2, Optional ByVal fitColumnEnd As Long = 9)
Dim ws As Worksheet
Set ws = ActiveSheet
If fitColumnStart <= fitColumnEnd Then
ws.Range(ws.Columns(fitColumnStart), ws.Columns(fitColumnEnd)).AutoFit
End If
End Sub