Jinja2 inline comments
Question
How can I put comments inside Jinja2 argument list declaration ?
Everything I have tried gives an error: jinja2.exceptions.TemplateSyntaxError: unexpected char u'#'
{{ Switch('var',
[('1', 'foo'), # comment 1
('2', 'bar'), ## comment 2
('3', 'rum'), {# comment 3 #}
]) }}
{% macro Switch(var, caselist) %}
{% for case, action in caselist%}
CMP {{var}} {{case}}
JNE {{LABEL}}
{{action}}
JMP {{LABELF}}
{{LABEL}}: NOP
{%- endfor %}
{{LABELF}}: NOP
{%- endmacro -%}
In my case Jinja2 is used as macro preprocessor for assembler.
3 answers
solution1
150 2012-11-26 09:53:53
Jinja2 has no support for comments within a {{ ... }} statement. You can only use comments outside of such statements, and then only with {# .. #} or ## comment .
-
{# .. #}is only meant for disabling part of a template or adding comments outside of other Jinja2 syntax. You can't nest these. -
# statementis the equivalent of{% statement %}, if line statements are enabled and so configured . -
## commentonly works if line statements are enabled, at which point it regarded as a comment.
Generally, outside of Jinja statements, use comments in the target language instead; eg <!-- comment --> when generating XML, etc.
solution2
6 2020-12-14 12:50:13
Now Jinja2 has a comment statement:
{% comment %}
<html code/>
{% some other statements %}
{{ some.values }}
{% endcomment %}
solution3
4 2020-02-26 16:39:43
I was trying to add comments to Martijn Pieters.
{% .. %} = {# .. #}
{{ .. }} = {# .. #} (same as above)
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