aselimov/zsh-history-substring-search
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refactor repeated ZLE region highlighting logic

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This commit is contained in:
Suraj N. Kurapati 2011-05-25 11:29:22 -07:00
parent dcc4f7ffb0
commit 415b5c60c7
1 changed files with 20 additions and 48 deletions
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68
history-substring-search.zsh
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@ -81,9 +81,22 @@ history-substring-search-begin() {
}
history-substring-search-highlight() {
# highlight $BUFFER using zsh-syntax-highlighting plugin
# https://github.com/nicoulaj/zsh-syntax-highlighting
if [[ ((( $F_zsh_highlighting_available == 1 ) && ( $+BUFFER < $F_max_buffer_size) )) ]]; then
_zsh_highlight-zle-buffer
fi
if [[ $F_search4later != "" ]]; then
# F_search string was not empty: highlight it
# among other things, the following expression yields a variable $MEND,
# which indicates the end position of the first occurrence of $F_search
# in $BUFFER
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
# this is slightly more informative than highlighting that fish performs
region_highlight=("$F_my_mbegin $MEND $1")
fi
}
history-substring-search-end() {
@ -103,41 +116,20 @@ history-substring-search-backward() {
let "F_match_number = $F_match_number - 1"
F_command_to_be_retrieved=$history[$F_matches[$F_match_number]]
BUFFER=$F_command_to_be_retrieved
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
# F_search string was not empty: highlight it
# among other things the following expression yields a variable $MEND,
# which indicates the end position of the first occurrence of $F_search
# in $BUFFER
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_ordinary_highlight")
fi
history-substring-search-highlight $F_ordinary_highlight
else
if [[ ($F_match_number -eq 1) ]]; then
# we will move out of the F_matches
let "F_match_number = $F_match_number - 1"
F_old_buffer_backward=$BUFFER
BUFFER=$F_search4later
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
# this is slightly more informative than highlighting that fish
# performs
region_highlight=("$F_my_mbegin $MEND $F_out_of_matches_highlight")
fi
history-substring-search-highlight $F_out_of_matches_highlight
else
if [[ ($F_match_number -eq $F_number_of_matches_plus_one ) ]]; then
# we will move back to the F_matches
let "F_match_number = $F_match_number - 1"
BUFFER=$F_old_buffer_forward
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_ordinary_highlight")
fi
history-substring-search-highlight $F_ordinary_highlight
fi
fi
fi
@ -152,43 +144,23 @@ history-substring-search-forward() {
let "F_match_number = $F_match_number"
F_old_buffer_forward=$BUFFER
BUFFER=$F_search4later
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_out_of_matches_highlight")
fi
history-substring-search-highlight $F_out_of_matches_highlight
elif [[ ($F_match_number -ge 0 && $F_match_number -le $F_number_of_matches_minus_one) ]]; then
let "F_match_number = $F_match_number + 1"
F_command_to_be_retrieved=$history[$F_matches[$F_match_number]]
BUFFER=$F_command_to_be_retrieved
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_ordinary_highlight")
fi
history-substring-search-highlight $F_ordinary_highlight
else
if [[ ($F_match_number -eq $F_number_of_matches ) ]]; then
let "F_match_number = $F_match_number + 1"
F_old_buffer_forward=$BUFFER
BUFFER=$F_search4later
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_out_of_matches_highlight")
fi
history-substring-search-highlight $F_out_of_matches_highlight
else
if [[ ($F_match_number -eq 0 ) ]]; then
let "F_match_number = $F_match_number + 1"
BUFFER=$F_old_buffer_backward
history-substring-search-highlight
if [[ $F_search4later != "" ]]; then
: ${(S)BUFFER##(#m)($F_search4later##)}
let "F_my_mbegin = $MEND - $#F_search4later"
region_highlight=("$F_my_mbegin $MEND $F_ordinary_highlight")
fi
history-substring-search-highlight $F_ordinary_highlight
fi
fi
fi