+ {
+ 'key' => 'invoice_latextopmargin',
+ 'section' => 'invoicing',
+ 'description' => 'Optional LaTeX invoice topmargin setting. Include units.',
+ 'type' => 'text',
+ 'per_agent' => 1,
+ 'validate' => sub { shift =~
+ /^-?\d*\.?\d+(in|mm|cm|pt|em|ex|pc|bp|dd|cc|sp)$/
+ ? '' : 'Invalid LaTex length';
+ },
+ },
+
+ {
+ 'key' => 'invoice_latexheadsep',
+ 'section' => 'invoicing',
+ 'description' => 'Optional LaTeX invoice headsep setting. Include units.',
+ 'type' => 'text',
+ 'per_agent' => 1,
+ 'validate' => sub { shift =~
+ /^-?\d*\.?\d+(in|mm|cm|pt|em|ex|pc|bp|dd|cc|sp)$/
+ ? '' : 'Invalid LaTex length';
+ },
+ },
+
+ {
+ 'key' => 'invoice_latexaddresssep',
+ 'section' => 'invoicing',
+ 'description' => 'Optional LaTeX invoice separation between invoice header
+and customer address. Include units.',
+ 'type' => 'text',
+ 'per_agent' => 1,
+ 'validate' => sub { shift =~
+ /^-?\d*\.?\d+(in|mm|cm|pt|em|ex|pc|bp|dd|cc|sp)$/
+ ? '' : 'Invalid LaTex length';
+ },
+ },
+
+ {
+ 'key' => 'invoice_latextextheight',
+ 'section' => 'invoicing',
+ 'description' => 'Optional LaTeX invoice textheight setting. Include units.',
+ 'type' => 'text',
+ 'per_agent' => 1,
+ 'validate' => sub { shift =~
+ /^-?\d*\.?\d+(in|mm|cm|pt|em|ex|pc|bp|dd|cc|sp)$/
+ ? '' : 'Invalid LaTex length';
+ },
+ },
+