string line continuation causes parse error in repl

[rokke-git]

see discourse

very consistent for me, seems to work occasionally for others?

julia> versioninfo()
Julia Version 1.11.6
Commit 9615af0f269 (2025-07-09 12:58 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 12 × 12th Gen Intel(R) Core(TM) i7-1265U
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, alderlake)
Threads: 1 default, 0 interactive, 1 GC (on 12 virtual cores)

julia> "This is a long \
ERROR: ParseError:
# Error @ REPL[2]:1:17
"This is a long \
#               ╙ ── invalid escape sequence
Stacktrace:
 [1] top-level scope
   @ none:1

julia> "the error message for <\\ > is slightly different\ 
ERROR: ParseError:
# Error @ REPL[3]:1:51
"the error message for <\\ > is slightly different\ 
#                                                 └┘ ── invalid escape sequence
Stacktrace:
 [1] top-level scope
   @ none:1

[ufechner7]

Same problem on Julia 1.10.10.

Workaround:
Use \ alt+enter

[JeffBezanson]

Seems to be fixed in 1.12. Can you confirm?

[rokke-git]

looks like switching to the 1.12-rc1 fixed it for me as well; should the fix be included in some 1.11.7 or does it not matter that much?

[StefanKarpinski]

What was the actual issue here? Having a space after a backslash is an invalid escape...

[ufechner7]

The issue is, that even with a new line after a backslash it fails on 1.11 ...

julia> "this is a long\
ERROR: ParseError:
# Error @ REPL[2]:1:16
"this is a long\
#              ╙ ── invalid escape sequence
Stacktrace:
 [1] top-level scope
   @ none:1

The same on 1.12-rc1:

julia> "this is a long\
       line"
"this is a longline"

julia> 

No problem on 1.12