public/zsh-syntax-highlighting
1
0
Fork 0
mirror of https://github.com/zsh-users/zsh-syntax-highlighting.git synced 2025-01-30 09:47:13 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

main: Convert in_alias to an array of shift counts

Browse Source 
No functional change. Keeps track of how deep we are in expanding nested
aliases for the next commit.
This commit is contained in:
Matthew Martin 2020-10-28 22:46:04 -05:00
parent 1715f39a46
commit 046cb03a12
1 changed files with 22 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
highlighters/main/main-highlighter.zsh
View File

@ -76,7 +76,7 @@ _zsh_highlight_main_add_region_highlight() {
integer start=$1 end=$2
shift 2
if (( in_alias )); then
if (( $#in_alias )); then
[[ $1 == unknown-token ]] && alias_style=unknown-token
return
fi
@ -498,17 +498,18 @@ _zsh_highlight_main_highlighter__try_expand_parameter()
_zsh_highlight_main_highlighter_highlight_list()
{
integer start_pos end_pos=0 buf_offset=$1 has_end=$3
# alias_style is the style to apply to an alias once in_alias=0
# alias_style is the style to apply to an alias once $#in_alias == 0
# Usually 'alias' but set to 'unknown-token' if any word expanded from
# the alias would be highlighted as unknown-token
# param_style is analogous for parameter expansions
local alias_style param_style last_arg arg buf=$4 highlight_glob=true saw_assignment=false style
local in_array_assignment=false # true between 'a=(' and the matching ')'
# in_alias is equal to the number of shifts needed until arg=args[1] pops an
# arg from BUFFER and not added by an alias.
# in_alias is an array of integers with each element equal to the number
# of shifts needed until arg=args[1] pops an arg from the next level up
# alias or from BUFFER.
# in_param is analogous for parameter expansions
integer in_alias=0 in_param=0 len=$#buf
local -a match mbegin mend list_highlights
integer in_param=0 len=$#buf
local -a in_alias match mbegin mend list_highlights
# seen_alias is a map of aliases already seen to avoid loops like alias a=b b=a
local -A seen_alias
# Pattern for parameter names
@ -596,9 +597,11 @@ _zsh_highlight_main_highlighter_highlight_list()
last_arg=$arg
arg=$args[1]
shift args
if (( in_alias )); then
(( in_alias-- ))
if (( in_alias == 0 )); then
if (( $#in_alias )); then
(( in_alias[1]-- ))
# Remove leading 0 entries
in_alias=($in_alias[$in_alias[(i)<1->],-1])
if (( $#in_alias == 0 )); then
seen_alias=()
# start_pos and end_pos are of the alias (previous $arg) here
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
@ -637,7 +640,7 @@ _zsh_highlight_main_highlighter_highlight_list()
fi
fi
if (( in_alias == 0 && in_param == 0 )); then
if (( $#in_alias == 0 && in_param == 0 )); then
# Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
[[ "$proc_buf" = (#b)(#s)(([ $'\t']|[\\]$'\n')#)(?|)* ]]
# The first, outer parenthesis
@ -693,7 +696,6 @@ _zsh_highlight_main_highlighter_highlight_list()
if [[ $res == "alias" ]]; then
# Mark insane aliases as unknown-token (cf. #263).
if [[ $arg == ?*=* ]]; then
(( in_alias == 0 )) && in_alias=1
_zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
continue
fi
@ -707,15 +709,15 @@ _zsh_highlight_main_highlighter_highlight_list()
alias_args=(${(z)REPLY})
fi
args=( $alias_args $args )
if (( in_alias == 0 )); then
if (( $#in_alias == 0 )); then
alias_style=alias
# Add one because we will in_alias-- on the next loop iteration so
# this iteration should be considered in in_alias as well
(( in_alias += $#alias_args + 1 ))
else
# This arg is already included in the count, so no need to + 1.
(( in_alias += $#alias_args ))
# Transfer the count of this arg to the new element about to be appended.
(( in_alias[1]-- ))
fi
# Add one because we will in_alias[1]-- on the next loop iteration so
# this iteration should be considered in in_alias as well
in_alias=( $(($#alias_args + 1)) $in_alias )
(( in_redirection++ )) # Stall this arg
continue
else
@ -854,7 +856,7 @@ _zsh_highlight_main_highlighter_highlight_list()
style=commandseparator
elif [[ $this_word == *':start:'* ]] && [[ $arg == $'\n' ]]; then
style=commandseparator
elif [[ $this_word == *':start:'* ]] && [[ $arg == ';' ]] && (( in_alias )); then
elif [[ $this_word == *':start:'* ]] && [[ $arg == ';' ]] && (( $#in_alias )); then
style=commandseparator
else
# Empty commands (semicolon follows nothing) are valid syntax.
@ -1147,7 +1149,7 @@ _zsh_highlight_main_highlighter_highlight_list()
fi
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
done
(( in_alias == 1 )) && in_alias=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
(( $#in_alias )) && in_alias=() _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
(( in_param == 1 )) && in_param=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $param_style
[[ "$proc_buf" = (#b)(#s)(([[:space:]]|\\$'\n')#) ]]
REPLY=$(( end_pos + ${#match[1]} - 1 ))
@ -1258,7 +1260,7 @@ _zsh_highlight_main_highlighter_check_path()
# If this word ends the buffer, check if it's the prefix of a valid path.
if (( has_end && (len == end_pos) )) &&
(( ! in_alias )) &&
(( ! $#in_alias )) &&
[[ $WIDGET != zle-line-finish ]]; then
# TODO: When we've dropped support for pre-5.0.6 zsh, use the *(Y1) glob qualifier here.
local -a tmp