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This makes it easier to detect jumps and toggle show-line-number
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36 changes: 36 additions & 0 deletions
36
src/jvmMain/kotlin/dev/romainguy/kotlin/explorer/PeekingIterator.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * Copyright (C) 2024 Romain Guy | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| package dev.romainguy.kotlin.explorer | ||
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| /** Based on Guava PeekingIterator */ | ||
| class PeekingIterator<E : Any>(private val iterator: Iterator<E>) : Iterator<E> { | ||
| private var peekedElement: E? = null | ||
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| override fun hasNext(): Boolean { | ||
| return peekedElement != null || iterator.hasNext() | ||
| } | ||
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| override fun next(): E { | ||
| val element = peekedElement ?: return iterator.next() | ||
| peekedElement = null | ||
| return element | ||
| } | ||
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| fun peek(): E { | ||
| return peekedElement.takeIf { it != null } ?: iterator.next().also { peekedElement = it } | ||
| } | ||
| } |
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36 changes: 36 additions & 0 deletions
36
src/jvmMain/kotlin/dev/romainguy/kotlin/explorer/String.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * Copyright 2024 The Android Open Source Project | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| package dev.romainguy.kotlin.explorer | ||
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| fun Iterator<String>.consumeUntil(prefix: String): Boolean { | ||
| while (hasNext()) { | ||
| val line = next() | ||
| if (line.trim().startsWith(prefix)) return true | ||
| } | ||
| return false | ||
| } | ||
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| fun Iterator<String>.consumeUntil(regex: Regex): MatchResult? { | ||
| while (hasNext()) { | ||
| val line = next() | ||
| val match = regex.matchEntire(line) | ||
| if (match != null) { | ||
| return match | ||
| } | ||
| } | ||
| return null | ||
| } |
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