Difference between revisions of "Template:RomanPageToNegativeArabic"
(Created page with "<noinclude> Use this template to convert a roman page number into a negative arabic number, where zero iz -10000. Thus, the roman number is converted into arabic value, and th...") |
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| − | Use this template to convert a roman page number into a negative arabic number, where zero | + | Use this template to convert a roman page number into a negative arabic number, where zero the roman zero is treated as -100000. Thus, the roman number is converted into arabic value, and the result is -100000 + value. For instance, if <code><nowiki>value=x</nowiki></code>, the template will return -99990. If <code><nowiki>value=iv</nowiki></code>, the template will return -99996. If an empty string is passed as a value, an empty string is returned. All non roman characters are ignored. |
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| + | This is useful when storing the first page number of a publication for sorting purposes. | ||
'''NOTE:''' As any "printing" template, it doesn't store any values anywhere, but merely prints them on the page. | '''NOTE:''' As any "printing" template, it doesn't store any values anywhere, but merely prints them on the page. | ||
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-->{{#if: {{IsNumber|value={{{value|}}}|}}<!-- | -->{{#if: {{IsNumber|value={{{value|}}}|}}<!-- | ||
-->|<!-- | -->|<!-- | ||
| − | --><!-- the value is an | + | --><!-- the value is an Arabic number: return it |
| − | --> | + | -->{{{value}}}<!-- |
--><!-- | --><!-- | ||
-->|<!-- | -->|<!-- | ||
| − | --><!-- the value is not | + | --><!-- the value is not Arabic: assume its roman and try to convert |
| − | -->{{# | + | -->{{#expr: {{#tag:roman|{{{value|}}}|}} - 100000 }}<!-- |
| − | + | --><!-- the old code: {{#expr: {{#tag:roman|{{{value|}}}|}} - 100000 }} | |
| − | + | --><!-- | |
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| − | --> | ||
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-->}}<!-- if is number | -->}}<!-- if is number | ||
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--></includeonly> | --></includeonly> | ||
Latest revision as of 22:59, 24 December 2021
Use this template to convert a roman page number into a negative arabic number, where zero the roman zero is treated as -100000. Thus, the roman number is converted into arabic value, and the result is -100000 + value. For instance, if value=x, the template will return -99990. If value=iv, the template will return -99996. If an empty string is passed as a value, an empty string is returned. All non roman characters are ignored.
This is useful when storing the first page number of a publication for sorting purposes.
NOTE: As any "printing" template, it doesn't store any values anywhere, but merely prints them on the page.
Parameters:
|value=- the roman page number to convert. E.g. "xiv", "lx", "mmx", etc.