我希望在yam文件中有一个多行的markdown java。我尝试了很多东西,但我想我不太明白Yaml的引用规则。
{
title: Museum,
body: |
"```java
code code code
java2",
answers: [
"`museum`",
"`museum.getFloor(3)`",
"`museum.getFloor(3).getExhibit(5)`",
"`museum.getFloor(3).getExhibit(5).getCurator()`",
"`museum.getFloor(3).getExhibit(5).getCurator().name`",
"`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
]
}
制作:
/Users/pitosalas/.rbenv/versions/2.3.1/lib/ruby/2.3.0/psych.rb:377:in `parse': (generator/test.yml): found character that cannot start any token while scanning for the next token at line 3 column 9 (Psych::SyntaxError)
答案 0 :(得分:1)
YAML有两种风格:JSON如flow style和更好的人类可读block style。
粗略地说,你可以拥有嵌套结构,每个样式都嵌套在自身内,并且可以在嵌套样式中嵌套流式样,但是b lock style nested within flow style is not allowed。
您的级别{
和}
是流式,但您尝试使用|
在该流式样式中引入literal block style标量。从该标量向上替换块样式的流样式:
title: Museum
body: |
"```java
code code code
java2"
answers: [
"`museum`",
"`museum.getFloor(3)`",
"`museum.getFloor(3).getExhibit(5)`",
"`museum.getFloor(3).getExhibit(5).getCurator()`",
"`museum.getFloor(3).getExhibit(5).getCurator().name`",
"`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
]
你的YAML很好。请注意,加载时不会剥离密钥body
的“左右”的双引号,这可能不是您想要的。
你应该IMO不要在(流式)序列中的最后一个值,
之后省略尾随answers
。当您扩展列表并忘记在上面的行中放入尾随逗号时,这肯定会导致错误。
我个人会一直采用块式:
title: Museum
body: |
"```java
code code code
java2"
answers:
- "`museum`"
- "`museum.getFloor(3)`"
- "`museum.getFloor(3).getExhibit(5)`"
- "`museum.getFloor(3).getExhibit(5).getCurator()`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
答案 1 :(得分:1)
当处理复杂或复杂的YAML文件生成时,或者当它无法正常工作时,我会让Ruby向我展示道路:
require 'yaml'
body = <<EOT
"```java
code code code
java2
"
EOT
answers = %w(
`museum`
`museum.getFloor(3)`
`museum.getFloor(3).getExhibit(5)`
`museum.getFloor(3).getExhibit(5).getCurator()`
`museum.getFloor(3).getExhibit(5).getCurator().name`
`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`
)
obj = {
"title" => "Museum",
"body" => body,
"answers" => answers
}
puts obj.to_yaml
在这种情况下,输出:
---
title: Museum
body: |
"```java
code code code
java2
"
answers:
- "`museum`"
- "`museum.getFloor(3)`"
- "`museum.getFloor(3).getExhibit(5)`"
- "`museum.getFloor(3).getExhibit(5).getCurator()`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name`"
- "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"
如果您然后将该YAML传递回解析器,则应该返回原始数据结构:
YAML.load(obj.to_yaml)
# => {"title"=>"Museum",
# "body"=>"\"```java\n" +
# "code code code\n" +
# "java2\n" +
# "\"\n",
# "answers"=>
# ["`museum`",
# "`museum.getFloor(3)`",
# "`museum.getFloor(3).getExhibit(5)`",
# "`museum.getFloor(3).getExhibit(5).getCurator()`",
# "`museum.getFloor(3).getExhibit(5).getCurator().name`",
# "`museum.getFloor(3).getExhibit(5).getCurator().name.toUpper()`"]}