英文:
How to disallow a period in a JSON-schema pattern
问题
Sure, here's the translated content:
我想在JSON模式模式中的以下被禁止字符集中添加一个句号：
"pattern": "[^\"{}:, \t]+"
我的第一个想法是尝试：
"pattern": "[^\.\"{}:, \t]+"
但这会产生模式的解析错误。
我的下一个想法是尝试：
"pattern": "[^\\.\"{}:, \t]+"
但当我尝试验证我的YAML文件时，这并不具有所期望的属性。
我正在使用ajv作为我的JSON模式验证工具，并验证一个YAML文件。
英文:
I would like to add a period to the following banned character set in a JSON schema pattern:
"pattern": "[^\"{}:, \t]+"
My first thought was to try:
"pattern": "[^\.\"{}:, \t]+"
but this produces a parse error of the schema.
My next thought was to try:
"pattern": "[^\\.\"{}:, \t]+"
but this does not have the desired property when I try to validate my YAML file.
I am using ajv as my JSON schema validation tool, and I am validating a YAML file.
答案1
得分: 1
"As axiac and Diego D note, the period does not need to be escaped in the character class. However, in addition to that problem, the pattern was not matching anything because it lacked the prefix ^ and suffix $. The final pattern is:
"pattern": "^[^\"{}:., \t]+$""
英文:
As axiac and Diego D note, the period does not need to be escaped in the character class. However, in addition to that problem the pattern was not matching anything because it lacked the prefix ^ and suffix $. The final pattern is:
"pattern": "^[^\"{}:., \t]+$"
答案2
得分: 0
"." 在字符类中不是特殊字符。只有 ^、- 和 ] 是特殊字符，它们必须在字符类中进行转义。<br>
^ 和 - 甚至可以在字符类中不进行转义，只要它们不被放在具有特殊意义的位置上。
你的成功尝试在字符类中添加了 . 和 \。
只需在字符类中的某处添加 .（不要在 ^ 之前），就可以了：
"pattern": "[^\"{}:., \t]+"
英文:
. is not a special character in character classes. Only ^, - and ] are special characters and have to be escaped in character classes.<br>
^ and - can even be used without escaping in a character class if they are not placed in positions where they have special meaning.
Your successful attempt added both . and \ in the character class.
Just add . somewhere in the character class (not before ^) and that's all:
"pattern": "[^\"{}:., \t]+"
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