Hello, \input seems to introduce a space. Example: \starttext \immediate\write18{echo -n X >bla.tex} X\input bla\relax X \stoptext How could I get rid of this space? Cheers, Peter -- http://pmrb.free.fr/contact/
Hi Peter, Not the \input command, but the end-of-line in the inputted file is creating the space, indirectly. TeX normally appends a character with the current value of \endlinechar to each line of an input-ed file, and that character is later converted to a space. Setting \endlinechar to -1 temporarily is a possibility, another is writing a percent sign to the end of the line, yet another is ending the written line with \relax (or a similar space-gobbling command), and finally changing the catcode of the current \endlinechar to 9 (ignored) also works. Cheers, Taco Peter Münster wrote:
Hello, \input seems to introduce a space. Example:
\starttext \immediate\write18{echo -n X >bla.tex} X\input bla\relax X \stoptext
How could I get rid of this space?
Cheers, Peter
Taco Hoekwater wrote:
Setting \endlinechar to -1 temporarily is a possibility, another is writing a percent sign to the end of the line, yet another is ending the written line with \relax (or a similar space-gobbling command), and finally changing the catcode of the current \endlinechar to 9 (ignored) also works.
Here is a file demonstrating all four: \starttext % 1 \immediate\write18{echo -n X >bla1.tex} X{\endlinechar=-1 \input bla1 }X % 2 \immediate\write18{echo -n X\letterpercent >bla2.tex} X\input bla2 X % 3 \immediate \write18 {echo -n X\letterbackslash\letterbackslash relax >bla3.tex} X\input bla3 X % 4 \immediate\write18{echo -n X >bla4.tex} X{\catcode`\^^M=9 \input bla4 }X \stoptext
On Tue, 28 Feb 2006, Taco Hoekwater wrote:
Taco Hoekwater wrote:
Setting \endlinechar to -1 temporarily is a possibility, another is writing a percent sign to the end of the line, yet another is ending the written line with \relax (or a similar space-gobbling command), and finally changing the catcode of the current \endlinechar to 9 (ignored) also works.
Here is a file demonstrating all four:
Hello Taco, thanks a lot for your solutions, one can even omit the "-n" now! Cheers, Peter -- http://pmrb.free.fr/contact/
Taco Hoekwater wrote:
Hi Peter,
Not the \input command, but the end-of-line in the inputted file is creating the space, indirectly. TeX normally appends a character with the current value of \endlinechar to each line of an input-ed file, and that character is later converted to a space.
Setting \endlinechar to -1 temporarily is a possibility, another is writing a percent sign to the end of the line, yet another is ending the written line with \relax (or a similar space-gobbling command), and finally changing the catcode of the current \endlinechar to 9 (ignored) also works.
Cheers, Taco
Peter M�nster wrote:
Hello, \input seems to introduce a space. Example:
\starttext \immediate\write18{echo -n X >bla.tex} X\input bla\relax X \stoptext
How could I get rid of this space?
Cheers, Peter
in addition to taco's answers:
X\ignorespaces \input bla\relax \removeunwantedspaces X can help you out; btw, can you wikify taco's response? somewhere under 'how tex reads input'; in due time we can then add some additional info about how scantokens etc behave (everyeof stuff and such) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Tue, 28 Feb 2006, Hans Hagen wrote:
btw, can you wikify taco's response? somewhere under 'how tex reads input'; in due time we can then add some additional info about how scantokens etc behave (everyeof stuff and such)
Of course, but it won't be possible the next 10 days, so be patient. Cheers, Peter -- http://pmrb.free.fr/contact/
participants (3)
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Hans Hagen -
Peter Münster -
Taco Hoekwater