** Attachment added: "BugDemo.sh"
https://bugs.launchpad.net/ubuntu/+source/groff/+bug/882925/+attachment/2576224/+files/BugDemo.sh
** Description changed:
Text generated by an end-of-input macro trap (set with .em) can not
extend beyond the current page. That is, if it does the output which
should appear in subsequent pages is lost.
- It is unclear why the end-of-input trap is not called the same way as
- any other trap, with the same behavior as if the macro were called
- explicitly by the last line of user input. For some reason, the end-
- of-page machinery is not working by the time the .em trap is sprung.
+ It is unclear why the end-of-input trap is not called with the same
+ behavior as if the macro were called explicitly by the last line of user
+ input. For some reason, the end-of-page machinery is not working by
+ the time the .em trap is sprung, or else there is an inherent limitation
+ of -all- traps which prevents generating multiple pages.
I will attach a simple demo program. The output should contain 100+
lines, but it stops after 65 lines:
#!/bin/sh
nroff <<'EOF' | cat -s
.de EndOfInput
. nf
. nr Max 100
. nr i 1
. while \\n[i]<=\\n[Max] \{\
. nop Generated line \\n[i]
. nr i \\n[i]+1
. \}
---AFTER genreated lines---
..
.em EndOfInput
Main Text
EOF
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: groff-base 1.20.1-10
ProcVersionSignature: Ubuntu 2.6.35-30.61-generic 2.6.35.13
Uname: Linux 2.6.35-30-generic x86_64
Architecture: amd64
Date: Thu Oct 27 22:39:05 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release Candidate amd64
(20100928)
ProcEnviron:
- PATH=(custom, user)
- LANG=en_US.utf8
- SHELL=/bin/bash
+ PATH=(custom, user)
+ LANG=en_US.utf8
+ SHELL=/bin/bash
SourcePackage: groff
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https://bugs.launchpad.net/bugs/882925
Title:
Output from .em macro lost after current page
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