Looping through nested array

Hi,

I encountered a bug in chevron (Python 3.7.0, chevron 0.12.2) where looping through nested arrays leads to an erroneous output. It appears as if the closing tag ({{/.}}) of an inner loop gets mixed up with the closing tag of an outer loop.

Running the code

import chevron

with open('test.txt', 'w') as file:
    with open('test.mustache', 'r') as template:
        file.write(chevron.render(template, {
            'loop': [
                [
                    [
                        'Lorem',
                        'ipsum',
                        'dolor',
                        'sit'
                    ],
                    [
                        'amet',
                        'consectetur',
                        'adipiscing',
                        'elit'
                    ]
                ],
                [
                    [
                        'sed',
                        'do',
                        'eiusmod'
                    ],
                    [
                        'tempor',
                        'incididunt',
                        'ut'
                    ]
                ],
                [
                    [
                        'labore',
                        'et',
                        'dolore'
                    ], [
                        'magna',
                        'aliqua'
                    ]
                ]
            ]
        }))

with the template

--- level 0
{{#loop}}
    --- level 1
    {{#.}}
        --- level 2
        {{#.}}
            --- level 3
            {{.}}
            --- /level 3
        {{/.}}
        --- /level 2 (I get lost sometimes)
    {{/.}}
    --- /level 1
{{/loop}}
--- /level 0

outputs

--- level 0
    --- level 1
        --- level 2
            --- level 3
            Lorem
            --- /level 3
            --- level 3
            ipsum
            --- /level 3
            --- level 3
            dolor
            --- /level 3
            --- level 3
            sit
            --- /level 3
        --- level 2
            --- level 3
            amet
            --- /level 3
            --- level 3
            consectetur
            --- /level 3
            --- level 3
            adipiscing
            --- /level 3
            --- level 3
            elit
            --- /level 3
        --- /level 2 (I get lost sometimes)
    --- /level 1
[...]

where the line --- /level 2 (I get lost sometimes) does not show up after the inner loop ended as long as the outer one is not finished. Whereas in the same example written in JS on JSFiddle it works as I would expect it to:


--- level 0
    --- level 1
        --- level 2
            --- level 3
            Lorem
            --- /level 3
            --- level 3
            ipsum
            --- /level 3
            --- level 3
            dolor
            --- /level 3
            --- level 3
            sit
            --- /level 3
        --- /level 2 (I get lost sometimes)
        --- level 2
            --- level 3
            amet
            --- /level 3
            --- level 3
            consectetur
            --- /level 3
            --- level 3
            adipiscing
            --- /level 3
            --- level 3
            elit
            --- /level 3
        --- /level 2 (I get lost sometimes)
    --- /level 1
[...]

noahmorrison / chevron

Looping through nested array #39