Add support for table row iteration

[emeka]

Table row iteration with JTwig for loop is currently not implemented. The desired functionality would allow template designers to add a {% for ... %} and {% endfor %}` instructions respectively in the first and last column of a table and ensures that the row(s) are repeated in the loop.

In practice, it means that the JTwig for and endfor instruction code island must be pushed outside the XML table row element.

Here are the current specifications:

FORROW Formula

The FORROW Formula is used to fill tables with the values of list inputs from the Dynamic Lists Field.

{% for row in input.Firstname %}

{{input.Firstname[loop.index0]}}	{{input.Lastname[loop.index0]}}	{{input.Birthdate[loop.index0]}}

{% endfor %}

More details below.

For Loop in Tables (currently in development)
For loops come with an extra variable defined in the context, the loop variable. The loop variable provides a set of useful properties when within a for loop:

Variable	Description
length	Size of the list or map being iterated
index	Current iteration count starting in 1
index0	Current iteration count starting in 0
revindex	Remaining # of iterations to reach the end of the list or map, ends in 1
revindex0	Remaining # of iterations to reach the end of the list or map, ends in 0
first	Boolean property only true in the first iteration
last	Boolean property only true in the last iteration
parent	Accessing the parent context

If you want to replicate rows in a table, try to put a for loop as close as possible to the edge of a row.

My header	A {% set total=0 %}	B	C {% for item in [1,2,3] %}
{{loop.index0}}	{{loop.index}}	{{item}}	I want to replicate this row{% set total=item+total %}    {% endfor %}
			{{total*1000|number_format(2,'.', ''')}}

My header	A	B	C
0	1	1	I want to replicate this row
1	2	2	I want to replicate this row
2	3	3	I want to replicate this row
			6'000.00