| <#-- |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| --> |
| |
| <#assign s="012"> |
| <#assign seq=[0, 1, 2]> |
| |
| <#list ['s', 'seq', 'seq?map(it -> it)', 'seq?filter(it -> true)'] as sliced> |
| <#-- Copy loop var to namespace var: --> |
| <#assign sliced = sliced> |
| |
| <@assertSliceEquals '2', '2..' /> |
| <@assertSliceFails '2..3' /> |
| <@assertSliceEquals '2', '2..!3' /> |
| |
| <@assertSliceEquals '', '3..' /> |
| <@assertSliceEquals '', '3..*1' /> |
| <@assertSliceFails '3..*-1' /> |
| <@assertSliceFails '3..3' /> |
| |
| <@assertSliceFails '4..' /> |
| <@assertSliceFails '4..*1' /> |
| <@assertSliceFails '4..*-1' /> |
| |
| <@assertSliceEquals '', '1..*0' /> |
| <@assertSliceEquals '', '3..*0' /> |
| <@assertSliceEquals '', '4..*0' /> |
| |
| <@assertSliceEquals '0', '0..*-1' /> |
| <@assertSliceEquals '0', '0..*-2' /> |
| <@assertSliceEquals '1', '1..*-1' /> |
| <@assertSliceEquals '2', '2..*-1' /> |
| <#if sliced != 's'> |
| <@assertSliceEquals '10', '1..*-2' /> |
| <@assertSliceEquals '10', '1..*-3' /> |
| <@assertSliceEquals '21', '2..*-2' /> |
| <@assertSliceEquals '210', '2..*-3' /> |
| <#else> |
| <@assertSliceFails '1..*-2' /> |
| <@assertSliceFails '1..*-3' /> |
| <@assertSliceFails '2..*-2' /> |
| </#if> |
| </#list> |
| |
| <#macro assertSliceEquals expected range> |
| <@assertJoinedEquals expected, ('${sliced}[${range}]')?eval /> |
| </#macro> |
| |
| <#macro assertSliceFails range> |
| <@assertFails><@consume ('${sliced}[${range}]')?eval /></@> |
| </#macro> |
| |
| <#macro assertJoinedEquals expected actual> |
| <#local actualAsString = actual?isEnumerable?then(actual?join(''), actual)> |
| <@assertEquals expected=expected actual=actualAsString /> |
| </#macro> |
| |
| <#macro consume exp> |
| <#if exp?isEnumerable> |
| <#list exp as _></#list> |
| </#if> |
| </#macro> |