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https://issues.apache.org/jira/browse/METRON-830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15964697#comment-15964697
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ASF GitHub Bot commented on METRON-830:
---------------------------------------
Github user mattf-horton commented on a diff in the pull request:
https://github.com/apache/incubator-metron/pull/516#discussion_r110964390
--- Diff: metron-platform/metron-common/README.md ---
@@ -167,6 +172,14 @@ The `!=` operator is the negation of the above.
| [ `WEEK_OF_YEAR`](#week_of_year)
|
| [ `YEAR`](#year)
|
+### `APPEND_IF_MISSING`
+ * Description: Appends the suffix to the end of the string if the string
does not already end with any of the suffixes.
+ * Input:
+ * string - The string to be appended.
+ * suffix - The string suffix to append to the end of the string.
+ * suffixes - Optional - Additional string suffixes that are valid
terminators.
--- End diff --
Please state the format of "suffixes". Is it a string, a regex, an array
of strings, or what? If it is a single string, how does it represent plural
suffixes?
> Adding StringFunctions to Stellar - chop, prependifmissing, appendifmissing
> and countmatches
> --------------------------------------------------------------------------------------------
>
> Key: METRON-830
> URL: https://issues.apache.org/jira/browse/METRON-830
> Project: Metron
> Issue Type: Bug
> Affects Versions: 0.3.1
> Reporter: Anand Subramanian
> Assignee: Anand Subramanian
> Fix For: Next + 1
>
>
> Enhance Stellar by adding the following apache common string functions.
> - chop -> Remove the last character from a String.
> - prependifmissing -> Prepends the prefix to the start of the string if the
> string does not already start with any of the prefixes.
> - appendifmissing -> Appends the suffix to the end of the string if the
> string does not already end with any of the suffixes.
> - countmatches -> Counts how many times the substring appears in the larger
> string.
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