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    Farthest Frontier

    Module:Check for unknown parameters/doc

    This is the documentation page for Module:Check for unknown parameters

    This module may be appended to a template to check for uses of unknown parameters.

    Usage[edit source]

    Basic usage[edit source]

    {{#invoke:check for unknown parameters|check
    |unknown=[[Category:Some tracking category]]

    or to sort the entries in the tracking category by parameter with a preview error message

    {{#invoke:check for unknown parameters|check
    |unknown=[[Category:Some tracking category|_VALUE_]]
    |preview=unknown parameter "_VALUE_"

    or for an explicit red error message

    {{#invoke:check for unknown parameters|check
    |unknown=<span class="error">Sorry, I don't recognize _VALUE_</span>

    Here, arg1, arg2, ..., argN, are the known parameters. Unnamed (positional) parameters can be added too: |1|2|argname1|argname2|.... Any parameter which is used, but not on this list, will cause the module to return whatever is passed with the unknown parameter. The _VALUE_ keyword, if used, will be changed to the name of the parameter. This is useful for either sorting the entries in a tracking category, or for provide more explicit information.

    By default, the module makes no distinction between a defined-but-blank parameter and a non-blank parameter. That is, both unlisted |foo=x and |foo= are reported. To only track non-blank parameters use |ignoreblank=1.

    By default, the module ignores blank positional parameters. That is, an unlisted |2= is ignored. To include blank positional parameters in the tracking use |showblankpositional=1.

    Lua patterns[edit source]

    This module supports Lua patterns (similar to regular expressions), which are useful when there are many known parameters which use a systematic pattern. For example, template:infobox3cols uses

    | regexp1 = header[%d][%d]*
    | regexp2 = label[%d][%d]*
    | regexp3 = data[%d][%d]*[abc]?
    | regexp4 = class[%d][%d]*[abc]?
    | regexp5 = rowclass[%d][%d]*
    | regexp6 = rowstyle[%d][%d]*
    | regexp7 = rowcellstyle[%d][%d]*

    to match all parameters of the form headerNUM, labelNUM, dataNUM, dataNUMa, dataNUMb, dataNUMc, ..., rowcellstyleNUM, where NUM is a string of digits.

    Example[edit source]

    | above = {{{name|}}}
    | label1 = Height
    | data1 = {{{height|}}}
    | label2 = Weight
    | data2 = {{{weight|}}}
    | label3 = Website
    | data3 = {{{website|}}}
      end infobox, start tracking
    -->{{#invoke:Check for unknown parameters|check
    | unknown = {{main other|[[Category:Some tracking category|_VALUE_]]}}
    | preview = unknown parameter "_VALUE_"
    | name
    | height | weight
    | website

    See also[edit source]

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