starred/pkl
1
0
Fork 0
mirror of https://github.com/apple/pkl.git synced 2026-09-03 08:27:25 +02:00
Code Issues 198 Packages Projects Releases 10 Wiki Activity

LexParseException: No viable alternative at input (Regex(#"[ -퟿-�𐀀-􏿿\r\n\t] #75

New Issue
Closed
opened 2025-12-30 01:20:25 +01:00 by adam · 3 comments
adam commented 2025-12-30 01:20:25 +01:00
Owner
Copy Link
Copy Source

Originally created by @masp on GitHub (Feb 18, 2024).

Version

Documents/cfnpkl » pkl -v
Pkl 0.25.1 (macOS 14.1, native)

break.pkl

A = #"[ -퟿-�𐀀-􏿿
	]*"#

See playground: https://pkl-playground.vercel.app/?share=individual-pure-stomach

Expected behavior

I would expect using #"..."# would avoid any such issues with lexing, even if the characters are unprintable.

Here's a stack trace from pkl project package:

An unexpected error has occurred. Would you mind filing a bug report?

org.pkl.core.parser.LexParseException$ParseError: No viable alternative at input `(Regex(#"[ -퟿-�𐀀-􏿿\r\n\t]`.
        at org.pkl.core.parser.Parser$1.syntaxError(Parser.java:201)
        at org.pkl.core.parser.Parser$1.syntaxError(Parser.java:180)
        at org.antlr.v4.runtime.ProxyErrorListener.syntaxError(ProxyErrorListener.java:44)
        at org.antlr.v4.runtime.Parser.notifyErrorListeners(Parser.java:543)
        at org.pkl.core.parser.ErrorStrategy.reportNoViableAlternative(ErrorStrategy.java:41)
        at org.antlr.v4.runtime.DefaultErrorStrategy.reportError(DefaultErrorStrategy.java:139)
        at org.pkl.core.parser.antlr.PklParser.expr(PklParser.java:4159)
        at org.pkl.core.parser.antlr.PklParser.expr(PklParser.java:3996)
        at org.pkl.core.parser.antlr.PklParser.type(PklParser.java:2614)
        at org.pkl.core.parser.antlr.PklParser.typeAnnotation(PklParser.java:1951)
        at org.pkl.core.parser.antlr.PklParser.classProperty(PklParser.java:1360)
        at org.pkl.core.parser.antlr.PklParser.classBody(PklParser.java:1073)
        at org.pkl.core.parser.antlr.PklParser.clazz(PklParser.java:859)
        at org.pkl.core.parser.antlr.PklParser.module(PklParser.java:454)
        at org.pkl.core.parser.Parser.parseProduction(Parser.java:91)
        at org.pkl.core.parser.Parser.parseModule(Parser.java:44)
        at org.pkl.core.parser.Parser.parseModule(Parser.java:49)
        at org.pkl.core.ast.builder.ImportsAndReadsParser.parse(ImportsAndReadsParser.java:59)
        at org.pkl.core.project.ProjectPackager.getImportsAndReads(ProjectPackager.java:423)
        at org.pkl.core.project.ProjectPackager.validateImportsAndReads(ProjectPackager.java:381)
        at org.pkl.core.project.ProjectPackager.validatePklImportsAndReads(ProjectPackager.java:324)
        at org.pkl.core.project.ProjectPackager.doPackage(ProjectPackager.java:149)
        at org.pkl.core.project.ProjectPackager.createPackages(ProjectPackager.java:122)
        at org.pkl.cli.CliProjectPackager.doRun(CliProjectPackager.kt:88)
        at org.pkl.commons.cli.CliCommand.run(CliCommand.kt:45)
        at org.pkl.cli.commands.ProjectCommand$Companion$PackageCommand.run(ProjectCommand.kt:145)
        at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:198)
        at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:211)
        at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:211)
        at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:18)
        at com.github.ajalt.clikt.core.CliktCommand.parse(CliktCommand.kt:400)
        at com.github.ajalt.clikt.core.CliktCommand.parse$default(CliktCommand.kt:397)
        at com.github.ajalt.clikt.core.CliktCommand.main(CliktCommand.kt:415)
        at com.github.ajalt.clikt.core.CliktCommand.main(CliktCommand.kt:440)
        at org.pkl.cli.Main$main$1.invoke(Main.kt:52)
        at org.pkl.cli.Main$main$1.invoke(Main.kt:40)
        at org.pkl.commons.cli.CliMainKt.cliMain(CliMain.kt:31)
        at org.pkl.cli.Main.main(Main.kt:40)
Originally created by @masp on GitHub (Feb 18, 2024). Version ``` Documents/cfnpkl » pkl -v Pkl 0.25.1 (macOS 14.1, native) ``` `break.pkl` ``` A = #"[ -퟿-�𐀀-􏿿 ]*"# ``` See playground: https://pkl-playground.vercel.app/?share=individual-pure-stomach ## Expected behavior I would expect using `#"..."#` would avoid any such issues with lexing, even if the characters are unprintable. Here's a stack trace from `pkl project package`: ``` An unexpected error has occurred. Would you mind filing a bug report? org.pkl.core.parser.LexParseException$ParseError: No viable alternative at input `(Regex(#"[ -퟿-�𐀀-􏿿\r\n\t]`. at org.pkl.core.parser.Parser$1.syntaxError(Parser.java:201) at org.pkl.core.parser.Parser$1.syntaxError(Parser.java:180) at org.antlr.v4.runtime.ProxyErrorListener.syntaxError(ProxyErrorListener.java:44) at org.antlr.v4.runtime.Parser.notifyErrorListeners(Parser.java:543) at org.pkl.core.parser.ErrorStrategy.reportNoViableAlternative(ErrorStrategy.java:41) at org.antlr.v4.runtime.DefaultErrorStrategy.reportError(DefaultErrorStrategy.java:139) at org.pkl.core.parser.antlr.PklParser.expr(PklParser.java:4159) at org.pkl.core.parser.antlr.PklParser.expr(PklParser.java:3996) at org.pkl.core.parser.antlr.PklParser.type(PklParser.java:2614) at org.pkl.core.parser.antlr.PklParser.typeAnnotation(PklParser.java:1951) at org.pkl.core.parser.antlr.PklParser.classProperty(PklParser.java:1360) at org.pkl.core.parser.antlr.PklParser.classBody(PklParser.java:1073) at org.pkl.core.parser.antlr.PklParser.clazz(PklParser.java:859) at org.pkl.core.parser.antlr.PklParser.module(PklParser.java:454) at org.pkl.core.parser.Parser.parseProduction(Parser.java:91) at org.pkl.core.parser.Parser.parseModule(Parser.java:44) at org.pkl.core.parser.Parser.parseModule(Parser.java:49) at org.pkl.core.ast.builder.ImportsAndReadsParser.parse(ImportsAndReadsParser.java:59) at org.pkl.core.project.ProjectPackager.getImportsAndReads(ProjectPackager.java:423) at org.pkl.core.project.ProjectPackager.validateImportsAndReads(ProjectPackager.java:381) at org.pkl.core.project.ProjectPackager.validatePklImportsAndReads(ProjectPackager.java:324) at org.pkl.core.project.ProjectPackager.doPackage(ProjectPackager.java:149) at org.pkl.core.project.ProjectPackager.createPackages(ProjectPackager.java:122) at org.pkl.cli.CliProjectPackager.doRun(CliProjectPackager.kt:88) at org.pkl.commons.cli.CliCommand.run(CliCommand.kt:45) at org.pkl.cli.commands.ProjectCommand$Companion$PackageCommand.run(ProjectCommand.kt:145) at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:198) at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:211) at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:211) at com.github.ajalt.clikt.parsers.Parser.parse(Parser.kt:18) at com.github.ajalt.clikt.core.CliktCommand.parse(CliktCommand.kt:400) at com.github.ajalt.clikt.core.CliktCommand.parse$default(CliktCommand.kt:397) at com.github.ajalt.clikt.core.CliktCommand.main(CliktCommand.kt:415) at com.github.ajalt.clikt.core.CliktCommand.main(CliktCommand.kt:440) at org.pkl.cli.Main$main$1.invoke(Main.kt:52) at org.pkl.cli.Main$main$1.invoke(Main.kt:40) at org.pkl.commons.cli.CliMainKt.cliMain(CliMain.kt:31) at org.pkl.cli.Main.main(Main.kt:40) ```
adam closed this issue 2025-12-30 01:20:25 +01:00
adam commented 2025-12-30 01:20:26 +01:00
Author
Owner
Copy Link
Copy Source

@masp commented on GitHub (Feb 18, 2024):

Looking at the language spec more, I realize the issue is the \n in the raw literal. To do a multiline raw literal, you need to use #"""..."""# instead. I'm leaving this open in case the error message can be improved to match what's reported with pkl eval.

@masp commented on GitHub (Feb 18, 2024): Looking at the language spec more, I realize the issue is the `\n` in the raw literal. To do a multiline raw literal, you need to use `#"""..."""#` instead. I'm leaving this open in case the error message can be improved to match what's reported with pkl eval.
adam commented 2025-12-30 01:20:26 +01:00
Author
Owner
Copy Link
Copy Source

@stackoverflow commented on GitHub (Feb 19, 2024):

We plan to move out of ANTLR at some point which should improve parser errors. You are right that the message could be better.

@stackoverflow commented on GitHub (Feb 19, 2024): We plan to move out of ANTLR at some point which should improve parser errors. You are right that the message could be better.
adam commented 2025-12-30 01:20:26 +01:00
Author
Owner
Copy Link
Copy Source

@bioball commented on GitHub (Feb 21, 2024):

I'm going to close this as it's behaving correctly. We will improve these error messages when we manage to get off of ANTLR as our parser as Islon mentioned.

@bioball commented on GitHub (Feb 21, 2024): I'm going to close this as it's behaving correctly. We will improve these error messages when we manage to get off of ANTLR as our parser as Islon mentioned.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
bug
duplicate
enhancement
good first issue
help wanted
pull-request
Mirrored from GitHub Pull Request
No labels
Milestone
No items
No Milestone
Projects
Clear projects
No projects
Assignees
Clear assignees
adam (Adam Melkus)
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/pkl#75