Red Hat Bugzilla – Bug 105764
japanese man pages are unreadble in non-UTF8 locale
Last modified: 2007-11-30 17:10:31 EST
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030702 Galeon/1.3.9 Description of problem: Japanese man pages are shown in currupted characters in non UTF-8 locale, i.e. ja_JP.eucJP or ja_JP.SJIS. ja_JP.UTF-8 is OK. Version-Release number of selected component (if applicable): man-1.5k-8 How reproducible: Always Steps to Reproduce: 1.install man-pages-ja package. 2.set language to japanese. 3.open gnome-terminal. 4.chenge terminal character coding to EUC-JP. 5.type this command LANG=ja_JP.eucJP man cat Actual Results: man page is shown in corrupted characters, and not readable. Expected Results: man page is shown in japanese. Additional info: In process of japanese man-page, groff expect that input character encoding is according to locale. But japanese locale has four encoding choices: EUC-JP (this is default of Red Hat Linux), SHIFT-JIS, ISO-2022-JP, UTF-8 (this is default of Fedora Core). And man pages in man-pages-ja package are encoded with UTF-8. If a user chose ja_JP.ecuJP locale or ja_JP.SJIS locale, groff will expect EUC-JP or SHIFT-JIS encoded japanese man pages, but japanese man pages are always encoded in UTF-8. So, groff can't handle that correctly, shows currupted man pages. This patch is not a complete fix, but will cure the problem. --- /etc/man.config.orig 2003-09-27 03:50:19.000000000 +0900 +++ /etc/man.config 2003-09-27 03:48:34.000000000 +0900 @@ -97,7 +97,7 @@ # TROFF /usr/bin/groff -Tps -mandoc NROFF /usr/bin/nroff -c -mandoc -JNROFF /usr/bin/groff -Tnippon -mandocj +JNROFF LANG=ja_JP.UTF-8 /usr/bin/groff -Tnippon -mandocj KNROFF /usr/bin/groff -Tkorean -mandoc EQN /usr/bin/geqn -Tps NEQN /usr/bin/geqn -Tlatin1 @@ -108,7 +108,8 @@ PIC /usr/bin/gpic VGRIND GRAP -PAGER /usr/bin/less -isr +#PAGER /usr/bin/less -isr +PAGER /usr/bin/lv -i CAT /bin/cat # # The command "man -a xyzzy" will show all man pages for xyzzy. I consider, converting man pages according to current locale before groff is a better solution, but /usr/bin/iconv will not detect current locale. So, another hack will be needed here. Because of compatibility issue, japanese people may want to set thire locale back to good-old ja_JP.eucJP. Also, this may be important for many asian Fedora users.
change added, however changing from less to lv is not really desired, as many systems do not have/want to install lv. what i18n functionality from lv is needed in less? please file a bug against less.
OK, I will file a bug about less to show a strange error message, "less: multi.c:1521: convert_to_ujis: Assertion `cvindex == 1' failed." when it convert UTF-8 to EUC-JP.
Oh, I misunderstood. According to less's man-page, unfortunatly, it seems that less dose not have any feature detect UTF-8 encoding automaticaly and automaticaly convert it to EUC-JP encoding. I think that we, japanese-users, may have to set PAGER environment variable to lv at this time. I don't think this less's issue is a bug. And I try to explor sourcecode of less.