* strange file name
@ 2008-10-25 16:12 Ruini Xue
2008-10-25 16:33 ` luigi scarso
0 siblings, 1 reply; 6+ messages in thread
From: Ruini Xue @ 2008-10-25 16:12 UTC (permalink / raw)
To: ntg-context
source file:
%%%%%%%%%%%%%%
\starttext
{\input knuth}
\stoptext
%%%%%%%%%%%%%%%%%%%
compiling it produces error:
! I can't find file `knuth}'.
l.2 {\input knuth}
Why does tex recognize "knuth}" but not "knuth" as the file name?
-- ruini
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: strange file name 2008-10-25 16:12 strange file name Ruini Xue @ 2008-10-25 16:33 ` luigi scarso 2008-10-26 6:41 ` Ruini Xue 0 siblings, 1 reply; 6+ messages in thread From: luigi scarso @ 2008-10-25 16:33 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1.1: Type: text/plain, Size: 554 bytes --] On Sat, Oct 25, 2008 at 6:12 PM, Ruini Xue <xueruini@gmail.com> wrote: > source file: > > %%%%%%%%%%%%%% > \starttext > {\input knuth} > > \stoptext > %%%%%%%%%%%%%%%%%%% > > compiling it produces error: > > ! I can't find file `knuth}'. > l.2 {\input knuth} > > Why does tex recognize "knuth}" but not "knuth" as the file name? > Watch for the space after knuth %%%%%%%%%%%%%% \starttext {\input knuth } \stoptext %%%%%%%%%%%%%%%%%%% Also %%%%%%%%%%%%%% \starttext {\input knuth\relax} \stoptext %%%%%%%%%%%%%%%%%%% It's TeX \input -- luigi [-- Attachment #1.2: Type: text/html, Size: 970 bytes --] [-- Attachment #2: Type: text/plain, Size: 487 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: strange file name 2008-10-25 16:33 ` luigi scarso @ 2008-10-26 6:41 ` Ruini Xue 2008-10-26 11:24 ` Yue Wang 2008-10-27 1:00 ` luigi scarso 0 siblings, 2 replies; 6+ messages in thread From: Ruini Xue @ 2008-10-26 6:41 UTC (permalink / raw) To: ntg-context luigi scarso <luigi.scarso <at> gmail.com> writes: > > > On Sat, Oct 25, 2008 at 6:12 PM, Ruini Xue <xueruini <at> gmail.com> wrote: > source file: > > Watch for the space after knuth > {\input knuth\relax} > I just want to know why \input includes the right brace "}" in the file name. -- ruini ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: strange file name 2008-10-26 6:41 ` Ruini Xue @ 2008-10-26 11:24 ` Yue Wang 2008-10-26 22:47 ` Hans Hagen 2008-10-27 1:00 ` luigi scarso 1 sibling, 1 reply; 6+ messages in thread From: Yue Wang @ 2008-10-26 11:24 UTC (permalink / raw) To: mailing list for ConTeXt users I found this problem long ago and I think it is related to the web2c implementation? because \input behavior is actually defined by web2c. On Sun, Oct 26, 2008 at 2:41 PM, Ruini Xue <xueruini@gmail.com> wrote: > luigi scarso <luigi.scarso <at> gmail.com> writes: > >> >> >> On Sat, Oct 25, 2008 at 6:12 PM, Ruini Xue <xueruini <at> gmail.com> wrote: >> source file: >> >> Watch for the space after knuth >> {\input knuth\relax} >> > > I just want to know why \input includes the right brace "}" in the file name. > > -- ruini > > > > > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to the Wiki! > > maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : https://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ > ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: strange file name 2008-10-26 11:24 ` Yue Wang @ 2008-10-26 22:47 ` Hans Hagen 0 siblings, 0 replies; 6+ messages in thread From: Hans Hagen @ 2008-10-26 22:47 UTC (permalink / raw) To: mailing list for ConTeXt users Yue Wang wrote: > I found this problem long ago and I think it is related to the web2c > implementation? because \input behavior is actually defined by web2c. > On Sun, Oct 26, 2008 at 2:41 PM, Ruini Xue <xueruini@gmail.com> wrote: web2c might implement the working, but the space or \relax ending an \input is part of the tex spec 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 ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: strange file name 2008-10-26 6:41 ` Ruini Xue 2008-10-26 11:24 ` Yue Wang @ 2008-10-27 1:00 ` luigi scarso 1 sibling, 0 replies; 6+ messages in thread From: luigi scarso @ 2008-10-27 1:00 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1.1: Type: text/plain, Size: 4045 bytes --] On Sun, Oct 26, 2008 at 8:41 AM, Ruini Xue <xueruini@gmail.com> wrote: > luigi scarso <luigi.scarso <at> gmail.com> writes: > > > > > > > On Sat, Oct 25, 2008 at 6:12 PM, Ruini Xue <xueruini <at> gmail.com> > wrote: > > source file: > > > > Watch for the space after knuth > > {\input knuth\relax} > > > Also this works %%%%%%%%%%%%%% \starttext \begingroup\input knuth\endgroup \stoptext %%%%%%%%%%%%%%%%%%% and this doesn't work %%%%%%%%%%%%%% \starttext \bgroup\input knuth\egroup \stoptext %%%%%%%%%%%%%%%%%%% > > I just want to know why \input includes the right brace "}" in the file > name. > \input is a primitive of LuaTeX; give a look at luatex.pdf to see how it's implemented . Here some web code (look at name_in_progress ) : 378. The processing of \input involves the start input subroutine, which will be declared later; the processing of \endinput is trivial. < Put each of TEX's primitives into the hash table 241 >+= primitive ("input", input , 0); primitive ("endinput", input , 1); 379. < Cases of print cmd chr for symbolic printing of primitives 242 >+= input : if chr code = 0 then print esc ("input") < Cases of input for print cmd chr 1529> else print esc ("endinput"); 380. Initiate or terminate input from a file 380 if cur chr = 1 then force eof true < Cases for input 1530> else if name in progress then insert relax else start input This code is used in section 368. 381. Sometimes the expansion looks too far ahead, so we want to insert a harmless \relax into the user's input. < Declare the procedure called insert relax 381 > += procedure insert relax ; begin cur tok cs token flag + cur cs ; back input ; cur tok cs token flag + frozen relax ; back input ; token type inserted ; end; This code is used in section 365. 536* Now let's consider the driver routines by which TEX deals with file names in a system-independent. manner. First comes a procedure that looks for a file name in the input by calling get x token for the information. procedure scan file name ; label done ; begin name in progress true ; begin name ; Get the next non-blank non-call token 410 ; loop begin if (cur cmd > other char ) (cur chr > biggest char ) then { not a character } begin back input ; goto done ; end; { If cur chr is a space and we're not scanning a token list, check whether we're at the end of the buffer. Otherwise we end up adding spurious spaces to file names in some cases. } if (cur chr = " ") (state = token list ) (loc > limit ) then goto done ; if ¬more name (cur chr ) then goto done ; get x token ; end; done : end name ; name in progress false ; end; 537. The global variable name in progress is used to prevent recursive use of scan file name , since the begin name and other procedures communicate via global variables. Recursion would arise only by devious tricks like `\input\input f'; such attempts at sabotage must be thwarted. Furthermore, name in progress prevents \input from being initiated when a font size specification is being scanned. Another global variable, job name , contains the file name that was first \input by the user. This name is extended by `.log' and `.dvi' and `.fmt' in the names of TEX's output files. Global variables 13 + name in progress : boolean ; { is a file name being scanned? } job name : str number ; { principal file name } log opened : boolean ; { has the transcript file been opened? } > > -- ruini > > > > > > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to > the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : https://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > > ___________________________________________________________________________________ > -- luigi [-- Attachment #1.2: Type: text/html, Size: 6203 bytes --] [-- Attachment #2: Type: text/plain, Size: 487 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-10-27 1:00 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-10-25 16:12 strange file name Ruini Xue 2008-10-25 16:33 ` luigi scarso 2008-10-26 6:41 ` Ruini Xue 2008-10-26 11:24 ` Yue Wang 2008-10-26 22:47 ` Hans Hagen 2008-10-27 1:00 ` luigi scarso
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