Bash completion doesn't work for MSYS bash. Regex syntax error
-
22-04-2021 - |
Question
I tried to install bash-completion for MSYS bash, but it seems it contains some syntax errors. It fails with the following message
bash: /usr/local/share/bash-completion/bash_completion: line 625: syntax error in conditional expression: unexpected token `('
bash: /usr/local/share/bash-completion/bash_completion: line 625: syntax error near `^(\'
bash: /usr/local/share/bash-completion/bash_completion: line 625: ` if [[ $cur =~ ^(\$\{?)([A-Za-z0-9_]*)$ ]]; then'
here is the code that fails
# Complete variables.
# @return True (0) if variables were completed,
# False (> 0) if not.
_variables()
{
if [[ $cur =~ ^(\$\{?)([A-Za-z0-9_]*)$ ]]; then
[[ $cur == *{* ]] && local suffix=} || local suffix=
COMPREPLY+=( $( compgen -P ${BASH_REMATCH[1]} -S "$suffix" -v -- \
"${BASH_REMATCH[2]}" ) )
return 0
fi
return 1
}
Solution
You are using the beta version (1.99) of bash-completion, you can try the latest stable instead (1.3)
If you really need the beta version you need quotes around the regular expression ^(\$\{?)([A-Za-z0-9_]*)$
in the line if [[ $cur =~ ^(\$\{?)([A-Za-z0-9_]*)$ ]]; then
handling of the operator =~ is different depending on bash version (IIRC prior 3.2 quotes are required)
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow