结果证明这相当复杂，我不能说我的解决方案是否适用于任何文档。主要问题如问题所示，无法使用 RegexMatch.FirstIndex 来确定实际匹配是否在 MS Word 文档中。这是因为正则表达式匹配是在 range.Text 属性（字符串）上完成的，并且该字符串仅包含与范围对象不同数量的字符，因此索引不匹配。
所以我的解决方案是针对每个匹配项，我在整个文档中为该匹配项进行查找。find 方法给出了一个 Range 对象，从中可以确定正确的页面。
在我的特殊情况下，匹配可能是相同的东西，也可能是不同的值。示例：343在我的情况下将与Prefix-343. 第二个问题是必须对匹配项进行排序，例如123，324无论哪个匹配项首先出现在文档中。
如果您需要排序功能，您还需要以下“模块”：
排序字典功能：
http://www.cpearson.com/excel/CollectionsAndDictionaries.htm
模块“modQSortInPlace”：
http://www.cpearson.com/Zips/modQSortInPlace.zip
如果不需要排序，则不需要它们，但需要SortDictionary Dict, True从我的代码中删除相应的函数调用。
现在到我的代码。您可以删除某些部分，尤其是格式化部分。这是针对我的情况的。另外，如果您的匹配是“独特的”，例如。不是前缀，因此您也可以简化代码。您将需要参考“Microsoft 脚本库”。
Option Explicit
Sub ExtractRNumbers()
Dim Dict As Scripting.Dictionary
Set Dict = CreateObject("Scripting.dictionary")
Dim regExp, Match, Matches
Dim rNumber As String
Dim range As range
Set regExp = CreateObject("VBScript.RegExp")
regExp.Pattern = "\b(R-)?\d{2}-\d{4,5}(-\d)?\b"
regExp.IgnoreCase = False
regExp.Global = True
' determine main section, only extract R-Numbers from main section
' and not the Table of contents as example
' main section = section with most characters
Dim section As section
Dim maxSectionSize As Long
Dim sectionSize As Long
Dim sectionIndex As Integer
Dim currentIndex As Integer
maxSectionSize = 0
currentIndex = 1
For Each section In ActiveDocument.Sections
sectionSize = Len(section.range.text)
If sectionSize > maxSectionSize Then
maxSectionSize = sectionSize
sectionIndex = currentIndex
End If
currentIndex = currentIndex + 1
Next
Set Matches = regExp.Execute(ActiveDocument.Sections(sectionIndex).range.text)
For Each Match In Matches
' If the Document contains Tables, ActiveDocument.range.Text will contain
' BEL charachters (chr(7)) that probably define the table structure. The issue
' is that then Match.FirstIndex does not point to the actual first charachter
' of a Match in the Document.
' Also there are other things (unknwon) that lead to the same issue, eg.
' Match.FirstIndex can not be used to find the actual "matching word" within the
' document. Because of that below commented apporach does not work on a generic document
' Set range = ActiveDocument.range(Match.FirstIndex, Match.FirstIndex + Len(Match.Value))
' page = range.Information(wdActiveEndAdjustedPageNumber)
' Maybe there is a simpler solution but this works more or less
' the exception beign tables again. see http://support.microsoft.com/kb/274003
' After a match is found the whole document is searched using the find method.
' For each find result the page number is put into an array (if it is not in the array yet)
' Then the match is formatted properly.
' After formatting, it is checked if the match was previously already found
'
' If not, we add a new entry to the dictionary (key = formatted match, value = array of page numbers)
'
' If match was already found before (but potentially in a different format! eg R-87-1000 vs 87-1000 as example),
' all additional pages are added to the already found pages.
Set range = ActiveDocument.Sections(sectionIndex).range
With range.Find
.text = Match.Value
.MatchWholeWord = True
.MatchCase = True
.Wrap = wdFindStop
End With
Dim page As Variant
Dim pages() As Integer
Dim index As Integer
index = 0
ReDim pages(0)
Do While range.Find.Execute() = True
page = range.Information(wdActiveEndAdjustedPageNumber)
If Not IsInArray(page, pages) Then
ReDim Preserve pages(index)
pages(index) = page
index = index + 1
End If
Loop
' FORMAT TO PROPER R-NUMBER: This is specific to my case
rNumber = Match.Value
If Not rNumber Like "R-*" Then
rNumber = "R-" & rNumber
End If
' remove possible batch number as r-number
If Len(rNumber) > 11 Then
rNumber = Left(rNumber, Len(rNumber) - 2)
End If
' END FORMAT
If Not Dict.Exists(rNumber) Then
Dict.Add rNumber, pages
Else
Dim existingPages() As Integer
existingPages = Dict(rNumber)
For Each page In pages
If Not IsInArray(page, existingPages) Then
' add additonal pages. this means that the previous match
' was formatted different, eg R-87-1000 vs 87-1000 as example
ReDim Preserve existingPages(UBound(existingPages) + 1)
existingPages(UBound(existingPages)) = page
Dict(rNumber) = existingPages
End If
Next
End If
Next
'sort dictionary by key (R-Number)
SortDictionary Dict, True
Dim fso
Set fso = CreateObject("Scripting.FileSystemObject")
Dim stream
' Create a TextStream.
Set stream = fso.CreateTextFile(ActiveDocument.Path & "\" & ActiveDocument.Name & "-rNumbers.txt", True)
Dim key As Variant
Dim output As String
Dim i As Integer
For Each key In Dict.Keys()
output = key & vbTab
pages = Dict(key)
For i = LBound(pages) To UBound(pages)
output = output & pages(i) & ", "
Next
output = Left(output, Len(output) - 2)
stream.WriteLine output
Next
Set Dict = Nothing
stream.Close
End Sub
Private Function IsInArray(page As Variant, pages As Variant) As Boolean
Dim i As Integer
IsInArray = False
For i = LBound(pages) To UBound(pages)
If pages(i) = page Then
IsInArray = True
Exit For
End If
Next
End Function