[OS X TeX] Fixed epstopdf, which handles %%BoundingBox: (atend) OK.

George Gratzer gratzer at ms.umanitoba.ca
Fri Feb 3 22:27:07 CET 2006


I cannot do anything now, because I reinstalled the system to fix  
thing up.

GG

On Feb 3, 2006, at 2:59 PM, Gerben Wierda wrote:

> Can you convert the eps file on the command line? If not, can you  
> send me the eps file in question?
>
> G
>
> On 3 Feb 2006, at 15:58, George Gratzer wrote:
>
>> I tried it. Made the replacement. Now TeXShop is unable to typeset  
>> a document with an eps file.
>>
>> I create my eps files with illustrator (CS1).
>>
>> GG
>>
>>
>> On Jan 29, 2006, at 4:09 PM, Gerben Wierda wrote:
>>
>>> Please all, try the fixed epstopdf to be found on
>>>
>>> 	ftp://ftp.nluug.nl/pub/comp/macosx/epstopdf
>>>
>>> (Replace the one in /usr/local/teTeX/bin/....)
>>>
>>> I already had "%%BoundingBox: (atend)" code in there but it was  
>>> seriously broken. It has never worked, only produced damaged EPS  
>>> for GS to convert to PDF. I am embarassed because it was so very,  
>>> very broken that I must never have tested this, or some sort of  
>>> intermediate version somehow was promoted to final again at a  
>>> later date (I think this is more likely as I recall having had a  
>>> correct version when I developed my fixes). In any case, I  
>>> screwed up.
>>>
>>> But the above should work. Again, because of a lack of time I  
>>> cannot guarantee anything, but the algorithm is simple and  
>>> therefore: if it is wrong, it should immediately show up in a  
>>> test . I ran one test and it worked fine. (testing is generally a  
>>> bad substitute for design, but hey, this was not my code to begin  
>>> with and in this case a test is probably OK)
>>>
>>> G
>>>
>>> Some background:
>>>
>>> The problem always was to combine scanning for (atend) with  
>>> uncertainty about the line ending character used and perl's  
>>> inability to use a regular expression as input line separator.  
>>> Before this script was used on Mac OS X, a line ending was either  
>>> DOS CRLF or Unix LF. Now, to be usable with all those old files  
>>> from classic Mac OS, it had to be able to handle anything. That  
>>> was the fix I made several years ago.
>>>
>>> To be able to detect line ending, I employed a trick. The trick  
>>> is to read a certain number of bytes and try to guess the line  
>>> ending from that. Then I wrote difficult code to be able to keep  
>>> using what was already read, because I cannot close and open the  
>>> stream again if epstopdf is used as filter. I was just hacking,  
>>> not doing serious maintenance as I was under the impression  
>>> someone else maintained it.
>>>
>>> Now, the code to keep using what was already read from the input  
>>> was broken, but it was only used in case of atend, when the  
>>> bounding box at the end had to be found first, after which the  
>>> input file is patched and then sent to gs to turn it into PDF.
>>>
>>> In the case of (atend) the whole file ends up in memory. So a  
>>> combination of (atend) and huge EPS files is taxing. I personally  
>>> would probably design the whole thing differently, but as it is,  
>>> it is good enough.
>>>
>>> On 29 Jan 2006, at 15:09, Gerben Wierda wrote:
>>>
>>>> epstopdf should handle (atend) already. Maarten sent me a file.  
>>>> From that I can see that epstopdf is actually buggy. As I have  
>>>> become the maintainer of this file, I will see to it that it  
>>>> gets fixed.
>>>>
>>>> My apologies for probably having produced this bug in the first  
>>>> place.
>>>>
>>>> G
>>>>
>>>>
>>>> On 29 Jan 2006, at 11:41, Gerben Wierda wrote:
>>>>
>>>>> On 28 Jan 2006, at 22:14, Maarten Sneep wrote:
>>>>>
>>>>>> If you need the bounding box respected _and_ access to TeX  
>>>>>> fonts, you need epstopdf, unless the eps specifies the  
>>>>>> bounding box at the end of the file. Then you need to jump  
>>>>>> through hoops to get the conversion correct (I would advise to  
>>>>>> avoid tools that produce such output if possible).
>>>>>
>>>>> If someone sends me a recursive EPS with (atend) (that is, an  
>>>>> EPS which itself has the Bbox atend and which uses %% 
>>>>> BeginDocument inclusion of another EPS which has atend) I would  
>>>>> like to try to see if an idea that I have works.
>>>>>
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>>
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>
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