DosEditName is used to search for and edit names of files and subdirectories. Typically, it is used in conjunction with such functions as DosMove and DosCopy, which do not permit the use of global file-name characters, to perform repetitive operations on files.

An example of an editing operation is: pszSource = "foo.bar"; pszEdit = "*.baz"; result = "FOO.BAZ." In the editing process, the string is changed to uppercase.

Global file-name characters have two uses: searching and editing. If they are specified in pszSource, they are interpreted as search characters; in pszEdit, they are interpreted as editing characters. This difference can be illustrated with an example using the COPY utility. The user types the following:

copy *.old *.new

When used as search characters in pszSource, global file-name characters simply match files and behave like any other search characters. They have the following meanings:

• The period (.) has no special meaning itself, but "?" gives it one.

• The asterisk will form a match with any character, including a blank, or with the absence of a character. The matching operation does not cross the null character or the backslash (\), which means that only the file name is matched, not an entire path.

• The question mark matches 1 character, unless what it would match is a "." or the terminating null characters, in which case it matches 0 characters. It also does not cross "\".
  

  Any character other than * and ? matches itself, including ".".

  Searching is not case-sensitive.

  If a file name does not have a period (.), an implicit one is automatically appended to the end during searching operations. For example, searching for "foo." would return "foo".

  When used in pszEdit, global file-name characters have the following meanings:

• The period (.) in the target synchronizes pointers. It causes the source pointer to match a corresponding pointer to the period in the target. Counting starts from the left of the pointers.

• The question mark copies one character, unless what it would copy is a period (.), in which case it copies no characters. It also copies no characters when the end of the source string is reached.

• The asterisk copies characters from the source to the target until it finds a source character that matches the character following it in the target.
  

  Editing is case-insensitive and case-preserving. If conflicts arise between the case of the source and that of the editing string, the case of the editing string is used, for example:

  source string:      "file.txt"
  editing string:     "*E.TMP"
  destination string: "filE.TMP"
  
  copy file.txt  *E.tmp  ->  filE.tmp
  
  

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