Excel export: added a special case to add HYPERLINK Formula when text…

[mdsimpson]

… in the cell matches =HYPERLINK("link","name")

A very basic start at adding support for Excel function.

[boxcla]

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[adrilo]

Thanks for the pull request @mdsimpson !

I'm not a big fan of one-off changes like this one. It's definitely interesting to add formulas support to Spout but it needs to be thought as a whole, not just in the scope of hyperlinks.

[adrilo]

This regex should be changed to support other ways of writing the formula: /=HYPERLINK\([\'"](.*)[\'"],\s*[\'"](.*)[\'"]\)/. This support single and double quotes as well as any number of spaces after the comma (it may also need the same \s before the comma)

[slewitan]

@mdsimpson,
I tried to implement your code on my local sever and (unless I missed something) it's not compatible with
$writer->addRowWithStyle()

for example: 
$style = (new StyleBuilder())
           ->setBackgroundColor('ff6600')
           ->build();
$writer->addRowWithStyle($row, $style); 

The entire row is colored except the hyperlink column.

[stevesweets]

My pull request here:

#425

Appears to achieve this.

[adrilo]

Outdated PR