为什么 psych yaml 解释器会在 80 个字符左右添加换行符? [英] why does psych yaml interpreter add line breaks around 80 characters?

问题描述

自 ruby​​ 1.9.3 以来，Psych 是默认的 yaml 引擎

Psych is the default yaml engine since ruby 1.9.3

为什么，哦，为什么 psych 会在其输出中添加换行符?检查下面的示例.

Why, oh why does psych add a line break in its output? Check the example below.

ruby -v # => ruby 1.9.3p374 (2013-01-15 revision 38858) [x86_64-linux]
require 'yaml'

"this absolutely normal sentence is more than eighty characters long because it IS".to_yaml
# => "--- this absolutely normal sentence is more than eighty characters long because it
    IS
...
"

YAML::ENGINE.yamler = 'syck'

"this absolutely normal sentence is more than eighty characters long because it IS".to_yaml
# => "--- this absolutely normal sentence is more than eighty characters long because it IS
"

推荐答案

您必须配置 psych 的 #to_yaml 选项.您很可能会在这里找到它:

You'll have to configure psych’s #to_yaml options. You'll most likely find it here:

ruby-1.9.3-p125/ext/psych/emitter.c

然后你可以这样做:

yaml.to_yaml(options = {:line_width => -1})

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