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

[George Gratzer]

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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