![]() | This user subpage is currently inactive and is retained for historical reference. If you want to revive discussion regarding the subject, you might try contacting the user in question or seeking broader input via a forum such as the village pump. I seldom see this bug any more, so it must have been fixed in almost all cases. Each example below (but not the counterexample section) used to have a double period as seen here, but today I see it only in the "Aspinall" example. |
The double period bug occurs because Category:Citation templates such as Template:Cite web and Template:Cite book, but for some reason not Template:Citation itself, add periods after many of their parameters. If that parameter has wrongly been ended with a period, usually because of an abbreviation, then the template may add a duplicate period. At present about 45,000 Wikipedia articles have this problem, placing it among Wikipedia's most frequent typos. There's more analysis at Template talk:Cite web/Archive 6#Double period bug.
Search for ".." to make the examples stand out. For instance, the first reference ends with duplicate periods, and the second has duplicate periods after "1890". For some obscure reason, a few examples that look like ".." can't be found by searching for "..". I have so many examples to help my WP:AWB software learn to distinguish when to remove a period and when to leave it alone; AWB reads the code you can see on the edit page, not what you see here.
{{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: |author=
has generic name (
help){{
cite web}}
: CS1 maint: date and year (
link){{
cite book}}
: URL–wikilink conflict (
help){{
cite document}}
: Cite document requires |publisher=
(
help)CS1 maint: multiple names: authors list (
link) Paper presented at Annual Meeting of the Academy of Orthopaedic Surgeons.{{
cite journal}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: |editor-first=
has generic name (
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help)CS1 maint: multiple names: editors list (
link){{
cite journal}}
: CS1 maint: multiple names: authors list (
link){{
cite journal}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help) (in Spanish){{
cite magazine}}
: Unknown parameter |lay-format=
ignored (
help){{
cite web}}
: Check date values in: |accessdate=
(
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite journal}}
: CS1 maint: multiple names: authors list (
link){{
cite document}}
: Unknown parameter |accessdate=
ignored (
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help); Unknown parameter |format=
ignored (
help); Unknown parameter |url=
ignored (
help); Unknown parameter |version=
ignored (
help){{
cite journal}}
: CS1 maint: date and year (
link)
![]() | This user subpage is currently inactive and is retained for historical reference. If you want to revive discussion regarding the subject, you might try contacting the user in question or seeking broader input via a forum such as the village pump. I seldom see this bug any more, so it must have been fixed in almost all cases. Each example below (but not the counterexample section) used to have a double period as seen here, but today I see it only in the "Aspinall" example. |
The double period bug occurs because Category:Citation templates such as Template:Cite web and Template:Cite book, but for some reason not Template:Citation itself, add periods after many of their parameters. If that parameter has wrongly been ended with a period, usually because of an abbreviation, then the template may add a duplicate period. At present about 45,000 Wikipedia articles have this problem, placing it among Wikipedia's most frequent typos. There's more analysis at Template talk:Cite web/Archive 6#Double period bug.
Search for ".." to make the examples stand out. For instance, the first reference ends with duplicate periods, and the second has duplicate periods after "1890". For some obscure reason, a few examples that look like ".." can't be found by searching for "..". I have so many examples to help my WP:AWB software learn to distinguish when to remove a period and when to leave it alone; AWB reads the code you can see on the edit page, not what you see here.
{{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: |author=
has generic name (
help){{
cite web}}
: CS1 maint: date and year (
link){{
cite book}}
: URL–wikilink conflict (
help){{
cite document}}
: Cite document requires |publisher=
(
help)CS1 maint: multiple names: authors list (
link) Paper presented at Annual Meeting of the Academy of Orthopaedic Surgeons.{{
cite journal}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite book}}
: |editor-first=
has generic name (
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help)CS1 maint: multiple names: editors list (
link){{
cite journal}}
: CS1 maint: multiple names: authors list (
link){{
cite journal}}
: Unknown parameter |coauthors=
ignored (|author=
suggested) (
help) (in Spanish){{
cite magazine}}
: Unknown parameter |lay-format=
ignored (
help){{
cite web}}
: Check date values in: |accessdate=
(
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help){{
cite journal}}
: CS1 maint: multiple names: authors list (
link){{
cite document}}
: Unknown parameter |accessdate=
ignored (
help); Unknown parameter |coauthors=
ignored (|author=
suggested) (
help); Unknown parameter |format=
ignored (
help); Unknown parameter |url=
ignored (
help); Unknown parameter |version=
ignored (
help){{
cite journal}}
: CS1 maint: date and year (
link)