[Ingest Pipelines] Add descriptions for ingest processors T-U (#77497) (#77650)

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

Author: jrodewig

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_processors_editor/components/processor_form/processors/trim.tsx

@@ -17,7 +17,7 @@ export const Trim: FunctionComponent = () => {
       <FieldNameField
         helpText={i18n.translate(
           'xpack.ingestPipelines.pipelineEditor.trimForm.fieldNameHelpText',
-          { defaultMessage: 'The field to trim whitespace from.' }
+          { defaultMessage: 'Field to trim. For an array of strings, each element is trimmed.' }
         )}
       />
 

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_processors_editor/components/processor_form/processors/uppercase.tsx

@@ -17,7 +17,10 @@ export const Uppercase: FunctionComponent = () => {
       <FieldNameField
         helpText={i18n.translate(
           'xpack.ingestPipelines.pipelineEditor.uppercaseForm.fieldNameHelpText',
-          { defaultMessage: 'The field to make uppercase.' }
+          {
+            defaultMessage:
+              'Field to uppercase. For an array of strings, each element is uppercased.',
+          }
         )}
       />
 

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_processors_editor/components/processor_form/processors/url_decode.tsx

@@ -17,7 +17,7 @@ export const UrlDecode: FunctionComponent = () => {
       <FieldNameField
         helpText={i18n.translate(
           'xpack.ingestPipelines.pipelineEditor.urlDecodeForm.fieldNameHelpText',
-          { defaultMessage: 'The field to decode.' }
+          { defaultMessage: 'Field to decode. For an array of strings, each element is decoded.' }
         )}
       />
 

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_processors_editor/components/processor_form/processors/user_agent.tsx

@@ -5,6 +5,8 @@
  */
 
 import React, { FunctionComponent } from 'react';
+import { EuiCode } from '@elastic/eui';
+import { FormattedMessage } from '@kbn/i18n/react';
 import { i18n } from '@kbn/i18n';
 
 import { EuiComboBoxOptionOption } from '@elastic/eui';
@@ -39,7 +41,7 @@ const fieldsConfig: FieldsConfig = {
       'xpack.ingestPipelines.pipelineEditor.userAgentForm.regexFileFieldHelpText',
       {
         defaultMessage:
-          'A filename containing the regular expressions for parsing the user agent string.',
+          'File containing the regular expressions used to parse the user agent string.',
       }
     ),
   },
@@ -51,13 +53,23 @@ export const UserAgent: FunctionComponent = () => {
       <FieldNameField
         helpText={i18n.translate(
           'xpack.ingestPipelines.pipelineEditor.userAgentForm.fieldNameHelpText',
-          { defaultMessage: 'The field containing the user agent string.' }
+          { defaultMessage: 'Field containing the user agent string.' }
         )}
       />
 
       <UseField config={fieldsConfig.regex_file} component={Field} path="fields.regex_file" />
 
-      <TargetField />
+      <TargetField
+        helpText={
+          <FormattedMessage
+            id="xpack.ingestPipelines.pipelineEditor.userAgentForm.targetFieldHelpText"
+            defaultMessage="Output field. Defaults to {defaultField}."
+            values={{
+              defaultField: <EuiCode inline>{'user_agent'}</EuiCode>,
+            }}
+          />
+        }
+      />
 
       <PropertiesField
         helpText={i18n.translate(

x-pack/plugins/ingest_pipelines/public/application/components/pipeline_processors_editor/components/shared/map_processor_type_to_form.tsx

@@ -413,27 +413,39 @@ export const mapProcessorTypeToDescriptor: MapProcessorTypeToDescriptor = {
     label: i18n.translate('xpack.ingestPipelines.processors.label.trim', {
       defaultMessage: 'Trim',
     }),
+    description: i18n.translate('xpack.ingestPipelines.processors.description.trim', {
+      defaultMessage: 'Removes leading and trailing whitespace from a string.',
+    }),
   },
   uppercase: {
     FieldsComponent: Uppercase,
     docLinkPath: '/uppercase-processor.html',
     label: i18n.translate('xpack.ingestPipelines.processors.label.uppercase', {
       defaultMessage: 'Uppercase',
     }),
+    description: i18n.translate('xpack.ingestPipelines.processors.description.uppercase', {
+      defaultMessage: 'Converts a string to uppercase.',
+    }),
   },
   urldecode: {
     FieldsComponent: UrlDecode,
     docLinkPath: '/urldecode-processor.html',
     label: i18n.translate('xpack.ingestPipelines.processors.label.urldecode', {
       defaultMessage: 'URL decode',
     }),
+    description: i18n.translate('xpack.ingestPipelines.processors.description.urldecode', {
+      defaultMessage: 'Decodes a URL-encoded string.',
+    }),
   },
   user_agent: {
     FieldsComponent: UserAgent,
     docLinkPath: '/user-agent-processor.html',
     label: i18n.translate('xpack.ingestPipelines.processors.label.userAgent', {
       defaultMessage: 'User agent',
     }),
+    description: i18n.translate('xpack.ingestPipelines.processors.description.userAgent', {
+      defaultMessage: "Extracts values from a browser's user agent string.",
+    }),
   },
 };