Module:String: Difference between revisions

    m>Dragons flight
    (Continuing trials and tribulations of string trimming and Wikipedia template quirks)
    m>WOSlinker
    (add str.replace_plain)
    Line 142: Line 142:
          
          
         return start
         return start
    end
    --[====[
    replace_plain
    This function allows one to replace a target string or pattern within another
    string.
    Usage:
    {{#invoke:String|replace_plain|source_str|pattern_string|replace_string|firstonlyflag}}
    OR
    {{#invoke:String|replace_plain|source=source_str|pattern=pattern_str|replace=replace_string|firstonly=firstonlyflag}}
    Parameters
        source: The string to search
        patten: The string or pattern to find within source
        replace: The replacement text
        firstonly: Boolean flag indicating that only the first occurence found should be replaced
    ]====]
    function str.replace_plain( frame )
        local new_args = str._getParameters( frame.args, {'source', 'pattern', 'replace', 'firstonly' } );
        local source_str = new_args['source'] or '';
        local pattern = new_args['pattern'] or '';
        local replace = new_args['replace'] or '';
        local firstonly = new_args['firstonly'] or '';
        firstonly = firstonly:lower();
           
        if source_str == '' or pattern == '' then
            return source_str;
        end   
        local pattern_plain = mw.ustring.gsub(pattern, '%%', '%%%%');
        local replace_plain = mw.ustring.gsub(replace, '%%', '%%%%');
        if firstonly == 'true' or firstonly == 'yes' or firstonly == '1' then
            local result = gsub( source_str, pattern_plain, replace_plain, 1 );
        else
            local result = gsub( source_str, pattern_plain, replace_plain, n );
        end
        return result;
    end
    end


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