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'main': Highlight parameter expansion history modifiers.

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Fixes #485.
This commit is contained in:
Daniel Shahaf 2018-01-20 15:55:00 +00:00
commit fccfc69b82
2 changed files with 50 additions and 2 deletions
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6
highlighters/main/main-highlighter.zsh
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@ -1283,10 +1283,12 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
'$' ) style=dollar-double-quoted-argument
# Look for an alphanumeric parameter name.
local alphanumeric_parameter_name='[A-Za-z_][A-Za-z0-9_]*|[0-9]+'
if [[ ${arg:$i} =~ ^(${alphanumeric_parameter_name}) ]] ; then
# :gs,:s,:F,:W take an argument between delimiters; we don't currently highlight delimiters.
local history_modifiers=':[aAcehlpPqQ&tuxfw]|:gs.|:s.|:F.|:W.'
if [[ ${arg:$i} =~ ^(${alphanumeric_parameter_name})(${history_modifiers})* ]] ; then
(( k += $#MATCH )) # highlight the parameter name
(( i += $#MATCH )) # skip past it
elif [[ ${arg:$i} =~ ^[{](${alphanumeric_parameter_name})[}] ]] ; then
elif [[ ${arg:$i} =~ ^[{](${alphanumeric_parameter_name})(${history_modifiers})*[}] ]] ; then
(( k += $#MATCH )) # highlight the parameter name and braces
(( i += $#MATCH )) # skip past it
elif [[ $arg[i+1] == '$' ]]; then