[Doxygen-develop] FILTER_PATTERNS is working with additional " at the end

[<Eck...@t-...>]

Hello Developers.

After some additional tests and referring the archive again I'm sure 
that the configuration of FILTER_PATTERNS is not working or its usage is 
not documented completely.

Even if I use
 FILTER_PATTERNS = *.m=./folder/subfolder/m2cpp.pl
the c-comment files will be analysed but not the matlab-files.

Doxygen gives me the warning that the perl-script 
"./folder/subfolder/m2cpp.pl can not be opened.
Note, the double-quote " is part of the doxygen warning message and 
there is no double-quote at the end of the message.

Once a realized that, I tried to insert in the wizard-input as 
filter-pattern
 *.m=./folder/subfolder/m2cpp.pl"  (note the double-quote at the end)
This results in the DOXYFILE the line:
 FILTER_PATTERNS = "*.m=./folder/subfolder/m2cpp.pl\""


And last but not least it works now. Since I don't use the filter as 
INPUT_FILTER all c-like files will be analysed like expected, while all 
m-files will be preprocessed with the filter.

Again an additional double-quote with backslash is needed at the end of 
the filter-definition:
 FILTER_PATTERNS = "pattern=filter\""
 in the doxygen-wizard the input is : pattern=filter"

Please decide if this is the wanted behaviour (then it may be useful to 
extend the documentation) or if this is a bug in the part to call the 
perl-script.
If you think this is a problem of the used perl-script I have added, 
please help me with some information and I will discuss this in the 
associated forum of matlab.


I use doxygen 1.8.3.1 on Windows XP SP3

Best regards,
                      Eckard Klotz.




> Hello Everybody.
>
> For my nassi-shneiderman generator for doxygen 
> (https://sourceforge.net/projects/moritz/) I'm working on an interface 
> for the programming-language matlab.For a first demo-release I created 
> some example-sources which I want to use together with my already 
> existing c-based  description of the general function of Moritz to 
> create with doxygen a documentation. This means I have some txt-files 
> with c-comment blocks (where I have defined *.txt as FILE_PATERNS). 
> This c-comment-blocks contain doxygen group- and page-definitions 
> which are traditionally used from me as description of the language 
> independent parts of the documentation. In addition I have some files 
> which contain comment-blocks in the programming-language for what I 
> want to add examples.  For python this works very good, since doxygen 
> is already able to understand python-files as well as c-files. But 
> since doxygen does not know matlab, I have to use a perl-filter for 
> those files. The perl-filter itself works well as long as I only use 
> my matlab-files. But I'm not able to configure doxygen to use this 
> filter for matlab-files only and to use its own build-in c-parser for 
> all other files.
>
> If I use
>  INPUT_FILTER = "perl ./folder/subfolder/m2cpp.pl"
> all matlab-files will be parsed correctly but the files with the 
> c-comments will be ignored.
>
> If I use
>  FILTER_PATTERNS = "*.m=perl ./folder/subfolder/m2cpp.pl"
> doxygen tells me that the perl-script can not be opened. The c-comment 
> files will be analysed but not the matlab-files.
>
> I had the idea to use
>  INPUT_FILTER = "perl ./folder/subfolder/m2cpp.pl"
> together with
>  FILTER_PATTERNS = "*.txt=?????    to use the perl-fileter as 
> default-filter and to deactivate it for the txt-files which contain 
> the c-comment blocks. But I don't know what to use instead for the 
> question-marks to ensure that no filter will be used but  the 
> doxygen-parser directly.
>
> Is someone able to help me?
>
> With many thanks,
>                             Eckard Klotz.
>
>