[tex-live] [NTG-pdftex] Runtime limitations on open files?
dak at gnu.org
Sat Aug 18 14:45:48 CEST 2007
Philip TAYLOR <Philip-and-LeKhanh at Royal-Tunbridge-Wells.Org> writes:
> David Kastrup wrote:
>> Have you actually programmed any serious batch scripts under Windows?
> Yes, many : after leaving VMS (a forced migration, not my choice)
> I have worked only with Windows. Probably the key to success
> is a familiarity with the HELP system :
>> In addition, substitution of FOR variable references has been enhanced.
>> You can now use the following optional syntax:
>> %~I - expands %I removing any surrounding quotes (")
>> %~fI - expands %I to a fully qualified path name
>> %~dI - expands %I to a drive letter only
>> %~pI - expands %I to a path only
>> %~nI - expands %I to a file name only
>> %~xI - expands %I to a file extension only
>> %~sI - expanded path contains short names only
>> %~aI - expands %I to file attributes of file
>> %~tI - expands %I to date/time of file
>> %~zI - expands %I to size of file
>> %~$PATH:I - searches the directories listed in the PATH
>> environment variable and expands %I to the
>> fully qualified name of the first one found.
>> If the environment variable name is not
>> defined or the file is not found by the
>> search, then this modifier expands to the
>> empty string
>> The modifiers can be combined to get compound results:
>> %~dpI - expands %I to a drive letter and path only
>> %~nxI - expands %I to a file name and extension only
>> %~fsI - expands %I to a full path name with short names only
>> %~dp$PATH:I - searches the directories listed in the PATH
>> environment variable for %I and expands to the
>> drive letter and path of the first one found.
>> %~ftzaI - expands %I to a DIR like output line
>> In the above examples %I and PATH can be replaced by other valid
>> values. The %~ syntax is terminated by a valid FOR variable name.
>> Picking upper case variable names like %I makes it more readable and
>> avoids confusion with the modifiers, which are not case sensitive.
It must be mentioned that one actually needs single-iteration
for-loops for almost any useful variable manipulation. Quite
> Also very useful is Log Parser 2.2 (which does far far more than
> parsing log files !) and, of course, Perl.
Perl is not exactly creditable to Windows now, is it?
David Kastrup, Kriemhildstr. 15, 44793 Bochum
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