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https://issues.apache.org/jira/browse/TINKERPOP-2041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635954#comment-16635954
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ASF GitHub Bot commented on TINKERPOP-2041:
-------------------------------------------
Github user dkuppitz commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/944#discussion_r222065189
--- Diff: docs/src/reference/the-traversal.asciidoc ---
@@ -3356,24 +3356,32 @@ interface. Steps that allow for this type of
modulation will explicitly state so
[[a-note-on-predicates]]
== A Note on Predicates
-A `P` is a predicate of the form `Function<Object,Boolean>`. That is,
given some object, return true or false. The
-provided predicates are outlined in the table below and are used in
various steps such as <<has-step,`has()`>>-step,
+A `P` is a predicate of the form `Function<Object,Boolean>`. That is,
given some object, return true or false. As of
+the relase of TinkerPop 3.4.0, Gremlin also supports simple text
predicates, which only work on `String` values. The `TextP`
+text predicates extend the `P` predicates, but are specialized in that
they are of the form `Function<String,Boolean>`.
+The provided predicates are outlined in the table below and are used in
various steps such as <<has-step,`has()`>>-step,
<<where-step,`where()`>>-step, <<is-step,`is()`>>-step, etc.
[width="100%",cols="3,15",options="header"]
|=========================================================
| Predicate | Description
-| `eq(object)` | Is the incoming object equal to the provided object?
-| `neq(object)` | Is the incoming object not equal to the provided object?
-| `lt(number)` | Is the incoming number less than the provided number?
-| `lte(number)` | Is the incoming number less than or equal to the
provided number?
-| `gt(number)` | Is the incoming number greater than the provided number?
-| `gte(number)` | Is the incoming number greater than or equal to the
provided number?
-| `inside(number,number)` | Is the incoming number greater than the first
provided number and less than the second?
-| `outside(number,number)` | Is the incoming number less than the first
provided number or greater than the second?
-| `between(number,number)` | Is the incoming number greater than or equal
to the first provided number and less than the second?
-| `within(objects...)` | Is the incoming object in the array of provided
objects?
-| `without(objects...)` | Is the incoming object not in the array of the
provided objects?
+| `P.eq(object)` | Is the incoming object equal to the provided object?
+| `P.neq(object)` | Is the incoming object not equal to the provided
object?
+| `P.lt(number)` | Is the incoming number less than the provided number?
+| `P.lte(number)` | Is the incoming number less than or equal to the
provided number?
+| `P.gt(number)` | Is the incoming number greater than the provided number?
+| `P.gte(number)` | Is the incoming number greater than or equal to the
provided number?
+| `P.inside(number,number)` | Is the incoming number greater than the
first provided number and less than the second?
+| `P.outside(number,number)` | Is the incoming number less than the first
provided number or greater than the second?
+| `P.between(number,number)` | Is the incoming number greater than or
equal to the first provided number and less than the second?
+| `P.within(objects...)` | Is the incoming object in the array of provided
objects?
+| `P.without(objects...)` | Is the incoming object not in the array of the
provided objects?
+| `TextP.startsWith(string)` | Does the incoming `String` start with the
provided `String`?
+| `TextP.endsWith(string)` | Does the incoming `String` end with the
provided `String`?
+| `TextP.contains(string)` | Does the incoming `String` contain the
provided `String`?
+| `TextP.startsNotWith(string)` | TODO: find a better name
--- End diff --
Sounds good to me, much better than what it is now.
> Text Predicates
> ---------------
>
> Key: TINKERPOP-2041
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2041
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.4.0
> Reporter: Daniel Kuppitz
> Assignee: Daniel Kuppitz
> Priority: Major
>
> Provide these simple text predicates:
> * {{startsWith}}
> * {{endsWith}}
> * {{contains}}
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