检查绳子的长度,然后用空间垫或用树枝拼接

Question

我想知道是否存在一个检查一个长度的树枝函数,然后,将字符串限制为所需的长度或用空格填充它.

我知道如何使用str_pad和substr并编写一个新的Twig过滤器.但我想知道是否有人可以使用exigsnts twig filter/functions来做到这一点

例如(字符串作为商品的var名称)

{{ "123123123123123"|filter(5) }}

返回"12312"

{{ "12"|filter(5) }}

返回"12_____"(以_作为空格)

Answer 1

您可以使用format带有填充和精度修改器的过滤器:

此示例最多可填充10个字符或将字符串修剪为10个字符:

Default, left padding:

Cuts to 10...
Arbitrary character:        {{ "%'_10.10s"|format("123123123123123") }}
Space-Padded:               {{ "% 10.10s"|format("123123123123123") }}
Zero-Padded:                {{ "%010.10s"|format("123123123123123") }}

... or expands to 10:
Arbitrary character:        {{ "%'_10.10s"|format("123") }}
Space-Padded:               {{ "% 10.10s"|format("123") }}
Zero-Padded:                {{ "%'010.10s"|format("123") }}

Right padding:

Cuts to 10...
Arbitrary character:        {{ "%'_-10.10s"|format("123123123123123") }}
Space-Padded:               {{ "% -10.10s"|format("123123123123123") }}
Zero-Padded:                {{ "%0-10.10s"|format("123123123123123") }}

... or expands to 10:
Arbitrary character:        {{ "%'_-10.10s"|format("123") }}
Space-Padded:               {{ "% -10.10s"|format("123") }}
Zero-Padded:                {{ "%'-010.10s"|format("123") }}

输出:

Default, left padding:

Cuts to 10...
Arbitrary character:        1231231231
Space-Padded:               1231231231
Zero-Padded:                1231231231

... or expands to 10:
Arbitrary character:        _______123
Space-Padded:                      123
Zero-Padded:                0000000123

Right padding:

Cuts to 10...
Arbitrary character:        1231231231
Space-Padded:               1231231231
Zero-Padded:                1231231231

... or expands to 10:
Arbitrary character:        123_______
Space-Padded:               123       
Zero-Padded:                0000000123

请注意,即使添加了对齐修改器,0填充也仅适用于左侧

编辑:TwigFiddle