给出Ansible Jinja2模板:
{% macro directive(name, value) %}
{% if value is defined %}
{{ name }}={{ value }}
{% endif %}
{% endmacro -%}
# {{ ansible_managed }}
[Unit]
{{ directive('Description', service.description) }}
{{ directive('Documentation', service.documentation) }}
{{ directive('Requires', service.requires) }}
service
变量定义:
service:
description: Test Template
requires: multi-user.target
如何更改模板以消除结果输出中的额外换行符:
# Ansible managed
[Unit]
Description=Test Template
Requires=multi-user.target
所以它看起来像:
# Ansible managed
[Unit]
Description=Test Template
Requires=multi-user.target
答案 0 :(得分:1)
请考虑以下事项:
# Ansible managed
[Unit 1]
Description=Test Template # a newline hardcoded in macro follows
# 1st hardcoded newline follows
# 2nd hardcoded newline follows
Requires=multi-user.target # a newline hardcoded in macro follows
# 3rd hardcoded newline follows
它产生:
variable_with_newline: "value\n"
即使whitespace control上的文档“单个尾随换行符被删除(如果存在”),它也不适用于变量替换,因此即使宏的结果包含换行符最后的字符,这个特殊的换行不会被删除。
如果您定义:
,就像它没有被剥离一样start-{{ variable_with_newline }}-end
并运行模板:
start-value
-end
它产生:
[Unit]
{{ directive('Description', service.description) }}{{ directive('Documentation', service.documentation) }}{{ directive('Requires', service.requires) }}
要修复模板,请删除硬编码的换行符:
[Unit]
{{ directive('Description', service.description) }}
{{- directive('Documentation', service.documentation) }}
{{- directive('Requires', service.requires) }}
或添加显式空格剥离:
[Unit]
{{ directive('Description', service.description) -}}
{{ directive('Documentation', service.documentation) -}}
{{ directive('Requires', service.requires) }}
或
<?php
while($row = mysql_fetch_assoc($result)) {
echo "
<tr onclick=\"window.location.replace='http://example.com';\" style='cursor:pointer;'>
<td>".$row["name"]."</td>
<td align='center'>".$row["type"]."</td>
<td align='center'>".$row["price"]."</td>
<td align='center'>".$row["available"]."</td>
</tr>";
}
?>