Module:Citation/CS1: Difference between revisions
Fix undocumented arxiv error check bug;
m>Trappist the monk (Synch from sandbox;) |
m>Trappist the monk (Fix undocumented arxiv error check bug;) |
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format and error check arXiv identifier. There are two valid forms of the identifier: | format and error check arXiv identifier. There are two valid forms of the identifier: | ||
the first form, valid only between date codes 9108 and 0703 is: | the first form, valid only between date codes 9108 and 0703 is: | ||
arXiv:<archive>.<class>/<date code><number> | arXiv:<archive>.<class>/<date code><number><version> | ||
where: | where: | ||
<archive> is a string of alpha characters - may be hyphenated; no other punctuation | <archive> is a string of alpha characters - may be hyphenated; no other punctuation | ||
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first digit of YY for this form can only 9 and 0 | first digit of YY for this form can only 9 and 0 | ||
<number> is a three-digit number | <number> is a three-digit number | ||
<version> is a 1 or more digit number preceded with a lowercase v; no spaces (undocumented) | |||
the second form, valid from April 2007 is: | the second form, valid from April 2007 is: | ||
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local err_cat = "" | local err_cat = "" | ||
year, month = id:match("^%a[%a%.%-]+/([90]%d)([01]%d)%d%d%d$"); -- test for the 9108-0703 format | year, month, version = id:match("^%a[%a%.%-]+/([90]%d)([01]%d)%d%d%d([v%d]*)$"); -- test for the 9108-0703 format | ||
if not year then -- arXiv id is not proper 9108-0703 form | if not year then -- arXiv id is not proper 9108-0703 form | ||
year, month, version = id:match("^(%d%d)([01]%d)%.%d%d%d%d([v%d]*)$"); -- test for the 0704- format | year, month, version = id:match("^(%d%d)([01]%d)%.%d%d%d%d([v%d]*)$"); -- test for the 0704- format | ||
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month = tonumber(month); | month = tonumber(month); | ||
if ((91 > year and 7 < year) or (1 > month and 12 < month)) or -- if invalid year or invalid month | if ((91 > year and 7 < year) or (1 > month and 12 < month)) or -- if invalid year or invalid month | ||
((91 == year and 8 > month) or (7 == year and 3 < month)) | ((91 == year and 8 > month) or (7 == year and 3 < month)) or -- if years ok, are starting and ending months ok? | ||
err_cat = ' ' .. seterror( 'bad_arxiv' ); | is_set (version) and nil == version:match("v%d+") then -- is version proper format of single 'v' followed by digits? | ||
err_cat = ' ' .. seterror( 'bad_arxiv' ); -- set error message | |||
end | end | ||
end | end | ||