-
Notifications
You must be signed in to change notification settings - Fork 24
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'main' into update/cats-core-2.10.0
- Loading branch information
Showing
26 changed files
with
558 additions
and
432 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file was deleted.
Oops, something went wrong.
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
116 changes: 116 additions & 0 deletions
116
migrate/src/main/scala/migrate/internal/CommandLineParser.scala
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* | ||
| * Scala (https://www.scala-lang.org) | ||
| * | ||
| * Copyright EPFL and Lightbend, Inc. | ||
| * | ||
| * Licensed under Apache License 2.0 | ||
| * (http://www.apache.org/licenses/LICENSE-2.0). | ||
| * | ||
| * See the NOTICE file distributed with this work for | ||
| * additional information regarding copyright ownership. | ||
| */ | ||
|
|
||
| package migrate.internal | ||
|
|
||
| import scala.annotation.tailrec | ||
|
|
||
| /** | ||
| * A simple enough command line parser. | ||
| * | ||
| * Copied from scala/scala | ||
| */ | ||
| private[migrate] object CommandLineParser { | ||
| final private val DQ = '"' | ||
| final private val SQ = '\'' | ||
|
|
||
| /** | ||
| * Split the line into tokens separated by whitespace or quotes. | ||
| * | ||
| * @return | ||
| * either an error message or reverse list of tokens | ||
| */ | ||
| private def tokens(in: String) = { | ||
| import Character.isWhitespace | ||
| import java.lang.{StringBuilder => Builder} | ||
| import collection.mutable.ArrayBuffer | ||
|
|
||
| var accum: List[String] = Nil | ||
| var pos = 0 | ||
| var start = 0 | ||
| val qpos = new ArrayBuffer[Int](16) // positions of paired quotes | ||
|
|
||
| def cur: Int = if (done) -1 else in.charAt(pos) | ||
| def bump() = pos += 1 | ||
| def done = pos >= in.length | ||
|
|
||
| def skipToQuote(q: Int) = { | ||
| var escaped = false | ||
| def terminal = in.charAt(pos) match { | ||
| case _ if escaped => escaped = false; false | ||
| case '\\' => escaped = true; false | ||
| case `q` => true | ||
| case _ => false | ||
| } | ||
| while (!done && !terminal) pos += 1 | ||
| !done | ||
| } | ||
| @tailrec | ||
| def skipToDelim(): Boolean = | ||
| cur match { | ||
| case q @ (DQ | SQ) => { qpos += pos; bump(); skipToQuote(q) } && { qpos += pos; bump(); skipToDelim() } | ||
| case -1 => true | ||
| case c if isWhitespace(c) => true | ||
| case _ => bump(); skipToDelim() | ||
| } | ||
| def skipWhitespace() = while (isWhitespace(cur)) pos += 1 | ||
| def copyText() = { | ||
| val buf = new Builder | ||
| var p = start | ||
| var i = 0 | ||
| while (p < pos) | ||
| if (i >= qpos.size) { | ||
| buf.append(in, p, pos) | ||
| p = pos | ||
| } else if (p == qpos(i)) { | ||
| buf.append(in, qpos(i) + 1, qpos(i + 1)) | ||
| p = qpos(i + 1) + 1 | ||
| i += 2 | ||
| } else { | ||
| buf.append(in, p, qpos(i)) | ||
| p = qpos(i) | ||
| } | ||
| buf.toString | ||
| } | ||
| def text() = { | ||
| val res = | ||
| if (qpos.isEmpty) in.substring(start, pos) | ||
| else if (qpos(0) == start && qpos(1) == pos) in.substring(start + 1, pos - 1) | ||
| else copyText() | ||
| qpos.clear() | ||
| res | ||
| } | ||
| def badquote = Left("Unmatched quote") | ||
|
|
||
| @tailrec def loop(): Either[String, List[String]] = { | ||
| skipWhitespace() | ||
| start = pos | ||
| if (done) Right(accum) | ||
| else if (!skipToDelim()) badquote | ||
| else { | ||
| accum = text() :: accum | ||
| loop() | ||
| } | ||
| } | ||
| loop() | ||
| } | ||
|
|
||
| class ParseException(msg: String) extends RuntimeException(msg) | ||
|
|
||
| def tokenize(line: String, errorFn: String => Unit): List[String] = | ||
| tokens(line) match { | ||
| case Right(args) => args.reverse | ||
| case Left(msg) => errorFn(msg); Nil | ||
| } | ||
|
|
||
| def tokenize(line: String): List[String] = tokenize(line, x => throw new ParseException(x)) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.