mirror of git://git.code.sf.net/p/zsh/code
52520: add new features and improvements to the "incarg" ZLE widget
- Decrement integers without defining a new widget - Preserve the number of leading zeros - Increment binaries, octals, and hexadecimals - Move the cursor to the end of the incremented integer - Create a sequence of integers across terminal panes - Add a Vim variant - Also add testsmaster
midchildan
4 months ago
committed by
Oliver Kiddle
parent
2d2086557e
commit
fb9a7cc5dd
@ -1,43 +1,254 @@
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# Shell function to increment an integer either under the cursor or just
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# to the left of it. Use
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emulate -L zsh
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# A ZLE widget to increment an integer.
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#
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# In addition to decimals, it can handle hexadecimals prefixed with "0x",
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# binaries with "0b", and octals with "0o".
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#
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# By default, the target integer will be incremented by one. With a numeric
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# argument, the integer is incremented by the amount of the argument. The shell
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# parameter "incarg" may be set to change the default increment to something
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# other than one.
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#
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# The behavior of this widget changes depending on how it is named.
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#
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# - incarg / decarg
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#
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# incarg will increment an integer either under the cursor or just to the left
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# of it. decarg, on the other hand, will decrement it.
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#
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# For example,
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#
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# echo 41
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# ^^^ cursor anywhere here
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#
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# with incarg gives
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#
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# echo 42
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# ^ cursor will move here
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#
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# - sync-incarg / sync-decarg
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#
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# The sync- variant is used for creating a sequence of numbers on split
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# terminals with synchronized key input. The first pane won't be incremented
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# at all, but each pane after that will have the number incremented once more
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# than the previous pane.
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#
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# Currently supports tmux and iTerm2.
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#
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# - vim-incarg / vim-decarg
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#
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# This behaves like Vim's CTRL-A / CTRL-X. It moves the cursor to the nearest
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# number after the cursor and increments or decrements it.
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#
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# - vim-sync-incarg / vim-sync-decarg
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#
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# This combines the behavior of the vim- and sync- variants. It's inspired by
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# Vim's g_CTRL-A / g_CTRL-X.
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#
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# Example Usage:
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#
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# autoload -Uz incarg
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# zle -N incarg
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# bindkey "..." incarg
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# to define it. For example,
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# echo 41
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# ^^^ cursor anywhere here
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# with incarg gives
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# echo 42
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# with the cursor in the same place.
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#
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# A numeric argument gives a number other than 1 to add (may be negative).
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# If you're going to do it a lot with one particular number, you can set
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# the parameter incarg to that number (a numeric argument still takes
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# precedence).
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# for widget in vim-{,sync-}{inc,dec}arg; do
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# zle -N "$widget" incarg
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# done
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# bindkey -a \
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# '^A' vim-incarg \
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# '^X' vim-decarg \
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# 'g^A' vim-sync-incarg \
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# 'g^X' vim-sync-decarg
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emulate -L zsh
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setopt extendedglob
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setopt localoptions extended_glob
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local match mbegin mend MATCH MBEGIN MEND i
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local rrest lrest num
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# find the number and determine the base
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integer pos=$(( CURSOR + 1 )) base=0
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rrest=${RBUFFER##[0-9]#}
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if [[ $RBUFFER = [0-9]* ]]; then
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if [[ -z $rrest ]]; then
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num=$RBUFFER
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else
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num=${RBUFFER[1,-$#rrest-1]}
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# avoid miscalculating positions when cursor is at the end of the line
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while (( pos > 0 )) && [[ "$BUFFER[pos]" == '' ]]; do
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(( pos-- ))
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done
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# check for a prefix (e.g., 0x) before the cursor
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for (( i = 0; i < 2; i++ )); do
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case "$BUFFER[1,pos]" in
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*0[xX][0-9a-fA-F]##) base=16 ;;
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*0[oO][0-7]##) base=8 ;;
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*0[bB][01]##) base=2 ;;
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*[1-9]) base=10 ;;
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*0) ;; # there may be a prefix right after the cursor
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*)
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# the non-Vim variant looks right before the cursor too, but not after it
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if [[ "$WIDGET" != vi* ]]; then
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if (( i == 0 )); then
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(( pos-- ))
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continue
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else
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return 1
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fi
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fi
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;;
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esac
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break
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done
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# check for a prefix on the cursor
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if (( base == 0 && pos < $#BUFFER )); then
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case "$BUFFER[1,pos+1]" in
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*0[xX][0-9a-fA-F]) base=16; (( pos++ )) ;;
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*0[oO][0-7]) base=8; (( pos++ )) ;;
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*0[bB][01]) base=2; (( pos++ )) ;;
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esac
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fi
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if (( base == 0 )); then
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if [[ "$WIDGET" == vi* ]]; then
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# jump to the nearest number after the cursor
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while [[ "$BUFFER[pos]" == [^0-9] ]]; do
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(( pos++ ))
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(( pos > $#BUFFER )) && return 1
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done
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fi
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# check for a prefix right after the cursor and jump right after it, if any
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if (( pos <= 1 )) || [[ "$BUFFER[pos-1]" == [^0-9] ]]; then
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case "$BUFFER[pos,-1]" in
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0[xX][0-9a-fA-F]*) base=16; (( pos += 2 )) ;;
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0[oO][0-7]*) base=8; (( pos += 2 )) ;;
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0[bB][01]*) base=2; (( pos += 2 )) ;;
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esac
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fi
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fi
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if (( base == 0 )); then
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base=10
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fi
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lrest=${LBUFFER%%[0-9]#}
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if [[ $LBUFFER = *[0-9] ]]; then
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if [[ -z $lrest ]]; then
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num="$LBUFFER$num"
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# find the start of the number
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integer first="$pos"
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case "$base" in
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10)
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while [[ "$BUFFER[first-1]" == [0-9] ]]; do
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(( first-- ))
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done
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if [[ $BUFFER[first-1] = - ]]; then
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(( first-- ))
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fi
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;;
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2)
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while [[ "$BUFFER[first-1]" == [01] ]]; do
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(( first-- ))
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done
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;;
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8)
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while [[ "$BUFFER[first-1]" == [0-7] ]]; do
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(( first-- ))
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done
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;;
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16)
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while [[ "$BUFFER[first-1]" == [0-9a-fA-F] ]]; do
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(( first-- ))
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done
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;;
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esac
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# find the end of the number
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integer last="$pos"
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case "$base" in
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10)
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while [[ "$BUFFER[last+1]" == [0-9] ]]; do
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(( last++ ))
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done
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;;
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2)
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while [[ "$BUFFER[last+1]" == [01] ]]; do
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(( last++ ))
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done
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;;
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8)
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while [[ "$BUFFER[last+1]" == [0-7] ]]; do
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(( last++ ))
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done
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;;
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16)
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while [[ "$BUFFER[last+1]" == [0-9a-fA-F] ]]; do
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(( last++ ))
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done
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;;
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esac
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# calculate the number of digits
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integer ndigits=0
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case "$BUFFER[first,first+1]" in
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0*|-0) ndigits=$(( last - first + 1 )) ;;
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esac
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# determine the amount to increment
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integer delta=${NUMERIC:-${incarg:-1}}
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if [[ "$WIDGET" = *decarg ]]; then
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(( delta = -delta ))
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fi
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if [[ "$WIDGET" = *sync-* ]]; then
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integer pane_index=0
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if [[ -n "$TMUX_PANE" ]]; then
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pane_index="$(tmux display-message -pt "$TMUX_PANE" '#{pane_index}')"
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elif [[ "$ITERM_SESSION_ID" =~ '^w[0-9]+t[0-9]+p([0-9]+)' ]]; then
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pane_index="$match[1]"
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else
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num="${LBUFFER[$#lrest+1,-1]}$num"
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zle -M "[$WIDGET] unsupported terminal"
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return 1
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fi
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(( delta *= pane_index ))
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fi
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local old="$BUFFER[first,last]"
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integer oldlen=$#BUFFER
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local fmt1 fmt2
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case "$base" in
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10) fmt1=d; fmt2='#10' ;;
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2) fmt1=s; fmt2='##2' ;;
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8) fmt1=s; fmt2='##8' ;;
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16) fmt1="$BUFFER[first-1]"; fmt2='#16' ;;
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esac
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local raw_result padded
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raw_result="$( \
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printf "%0$ndigits$fmt1" $(( [$fmt2] "$base#$old" + delta )) 2> /dev/null)"
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padded="${raw_result// /0}"
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integer oldnum="$base#$old" newnum="$base#$padded" 2> /dev/null
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if (( base != 10 && newnum < 0
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|| delta > 0 && newnum < oldnum
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|| delta < 0 && newnum > oldnum )); then
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zle -M "[$WIDGET] The resulting number is either too big or too small."
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return 1
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fi
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# adjust the number of leading zeros if the sign of the integer changed
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local new
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if (( base == 10 && ndigits == $#padded )); then
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if (( oldnum < 0 && newnum >= 0 )); then
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new="${padded#0}"
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elif (( oldnum >= 0 && newnum < 0 )); then
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new="-0${padded#-}"
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fi
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fi
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if [[ -z "$new" ]]; then
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new="$padded"
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fi
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if zstyle -t ":zle:$WIDGET" debug; then
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zle -M "[$WIDGET] base: $base delta: $delta old: '$old' new: '$new'"
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fi
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BUFFER[first,last]="$new"
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[[ -n $num ]] && (( num += ${NUMERIC:-${incarg:-1}} ))
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integer offset=0
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if [[ "$WIDGET" == vi* ]]; then
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offset=-1
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fi
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(( CURSOR = last + $#BUFFER - oldlen + offset ))
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BUFFER="$lrest$num$rrest"
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return 0
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@ -0,0 +1,360 @@
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# Tests the incarg ZLE widget
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%prep
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ZSH_TEST_LANG=$(ZTST_find_UTF8)
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if ( zmodload zsh/zpty 2>/dev/null ); then
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. $ZTST_srcdir/comptest
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comptestinit -v -z $ZTST_testdir/../Src/zsh
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else
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ZTST_unimplemented="the zsh/zpty module is not available"
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fi
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zpty_run '
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autoload -Uz incarg
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for name in {,vim-}{,sync-}{inc,dec}arg; do
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zle -N "$name" incarg
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done
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bindkey -v "^N" incarg
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bindkey -v "^P" decarg
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bindkey -v "^F" sync-incarg
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bindkey -v "^B" sync-decarg
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bindkey -a "^N" vim-incarg
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bindkey -a "^P" vim-decarg
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bindkey -a "^F" vim-sync-incarg
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bindkey -a "^B" vim-sync-decarg
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unset TMUX_PANE ITERM_SESSION_ID
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tmux() {
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echo "$TMUX_PANE"
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}
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'
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%test
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zletest $'0\C-n'
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0:increment an integer with incarg
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>BUFFER: 1
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>CURSOR: 1
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zletest $'0\C-p'
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0:decrement an integer with decarg
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>BUFFER: -1
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>CURSOR: 2
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zletest $'echo 0\e0\C-n'
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0:increment an integer with vim-incarg
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>BUFFER: echo 1
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>CURSOR: 5
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zletest $'echo 0\e0\C-p'
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0:decrement an integer with vim-decarg
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>BUFFER: echo -1
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>CURSOR: 6
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zletest $'0\C-f'
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0:sync-incarg does nothing on unsupported terminals
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>BUFFER: 0
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>CURSOR: 1
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zpty_run 'TMUX_PANE=0'
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zletest $'0\C-f'
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zpty_run 'unset TMUX_PANE'
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0:sync-incarg on tmux in pane 0
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>BUFFER: 0
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>CURSOR: 1
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zpty_run 'TMUX_PANE=1'
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zletest $'0\C-f'
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zpty_run 'unset TMUX_PANE'
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0:sync-incarg on tmux in pane 1
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>BUFFER: 1
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>CURSOR: 1
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zpty_run 'TMUX_PANE=2'
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zletest $'0\C-f'
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zpty_run 'unset TMUX_PANE'
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0:sync-incarg on tmux in pane 2
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>BUFFER: 2
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>CURSOR: 1
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zpty_run 'ITERM_SESSION_ID=w0t0p0:00000000-0000-0000-0000-000000000000'
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zletest $'0\C-f'
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zpty_run 'unset ITERM_SESSION_ID'
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0:sync-incarg on tmux in pane 0
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>BUFFER: 0
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>CURSOR: 1
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zpty_run 'ITERM_SESSION_ID=w0t0p1:00000000-0000-0000-0000-000000000000'
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zletest $'0\C-f'
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zpty_run 'unset ITERM_SESSION_ID'
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0:sync-incarg on tmux in pane 1
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>BUFFER: 1
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>CURSOR: 1
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zpty_run 'ITERM_SESSION_ID=w0t0p2:00000000-0000-0000-0000-000000000000'
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zletest $'0\C-f'
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zpty_run 'unset ITERM_SESSION_ID'
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0:sync-incarg on tmux in pane 2
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>BUFFER: 2
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>CURSOR: 1
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zpty_run 'TMUX_PANE=1'
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zpty_run 'ITERM_SESSION_ID=w0t0p2:00000000-0000-0000-0000-000000000000'
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zletest $'0\C-f'
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zpty_run 'unset TMUX_PANE ITERM_SESSION_ID'
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0:tmux pane number takes precedence over iTerm2's
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>BUFFER: 1
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>CURSOR: 1
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zletest $'0\e2\C-n'
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0:Providing a numeric argument will change the incremented amount
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>BUFFER: 2
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>CURSOR: 0
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zpty_run 'incarg=3'
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zletest $'0\e\C-n'
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zpty_run 'unset incarg'
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0:Setting the incarg variable will change the default incremented amount
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>BUFFER: 3
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>CURSOR: 0
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zpty_run 'incarg=3'
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zletest $'0\e2\C-n'
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zpty_run 'unset incarg'
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0:A numeric argument will take precedence over the incarg variable
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>BUFFER: 2
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>CURSOR: 0
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zpty_run 'TMUX_PANE=2'
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zletest $'0\e2\C-f'
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zpty_run 'unset TMUX_PANE'
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0:Providing a numeric argument will work for the sync- variants of incarg
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>BUFFER: 4
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>CURSOR: 0
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zletest $'000\C-n'
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0:Incrementing a decimal integer preserves leading zeros
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>BUFFER: 001
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>CURSOR: 3
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zletest $'-001\C-n\C-n'
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0:Leading zeros are preserved when the digit turns from negative to positive
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>BUFFER: 001
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>CURSOR: 3
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zletest $'001\C-p\C-p'
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0:Leading zeros are preserved when the digit turns from positive to negative
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>BUFFER: -001
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>CURSOR: 4
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zletest $'001\e1000\C-n'
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0:Incrementing an integer works when the result has more zeros than the original
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>BUFFER: 1001
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>CURSOR: 3
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zletest $'001\e2000\C-p'
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0:Decrementing an integer with leading zeros works when the result has more digits than the original
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>BUFFER: -1999
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>CURSOR: 4
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zletest $'0b11\C-n'
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0:Increment a binary integer
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>BUFFER: 0b100
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>CURSOR: 5
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zletest $'0B11\C-n'
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0:Increment a binary integer with an upper case prefix
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>BUFFER: 0B100
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>CURSOR: 5
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zletest $'0b100\C-p'
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0:Decrement a binary integer
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>BUFFER: 0b11
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>CURSOR: 4
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zletest $'0b0011\C-n'
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0:Increment a binary integer preserves leading zeros
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>BUFFER: 0b0100
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>CURSOR: 6
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zletest $'0b001\e8\C-n'
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0:Incrementing a binary integer work when the result has more zeros than the original
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>BUFFER: 0b1001
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>CURSOR: 5
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zletest $'0b0\C-p'
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0:Decrementing a binary integer to a negative value will fail
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>BUFFER: 0b0
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>CURSOR: 3
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zletest $'0o7\C-n'
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0:Increment an octal integer
|
||||
>BUFFER: 0o10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'0O7\C-n'
|
||||
0:Increment an octal integer with an upper case prefix
|
||||
>BUFFER: 0O10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'0o10\C-p'
|
||||
0:Decrement an octal integer
|
||||
>BUFFER: 0o7
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0o0\C-p'
|
||||
0:Decrementing an octal integer to a negative value will fail
|
||||
>BUFFER: 0o0
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0x9\C-n'
|
||||
0:Increment a hexadecimal integer
|
||||
>BUFFER: 0xa
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0X9\C-n'
|
||||
0:Increment a hexadecimal integer with an upper case prefix
|
||||
>BUFFER: 0XA
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0xf\C-n'
|
||||
0:Increment a hexadecimal integer with no numeric digit
|
||||
>BUFFER: 0x10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'0x10\C-p'
|
||||
0:Decrement a hexadecimal integer
|
||||
>BUFFER: 0xf
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0x0\C-p'
|
||||
0:Decrementing an octal integer to a negative value will fail
|
||||
>BUFFER: 0x0
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'0x0b1\C-n'
|
||||
0:a number that starts with 0x0b is interpreted as a hexadecimal integer
|
||||
>BUFFER: 0x0b2
|
||||
>CURSOR: 5
|
||||
|
||||
zletest $'10x9\e0\C-n'
|
||||
0:[0-9]0x[0-9a-f] will become [0-9]1x[0-9a-f] when incremented from the left of x
|
||||
>BUFFER: 11x9
|
||||
>CURSOR: 1
|
||||
|
||||
zletest $'10x9\eFx\C-n'
|
||||
0:[0-9]0x[0-9a-f] will increment the hexadecimal 0x[0-9a-f] when the cursor is on x
|
||||
>BUFFER: 10xa
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'10x9\e\C-n'
|
||||
0:[0-9]0x[0-9a-f] will increment the hexadecimal 0x[0-9a-f] when the cursor is on the right of x
|
||||
>BUFFER: 10xa
|
||||
>CURSOR: 3
|
||||
|
||||
zletest $'10b1\e0\C-n'
|
||||
0:[0-9]0b[01] will become [0-9]1b[01] when incremented from the left of b
|
||||
>BUFFER: 11b1
|
||||
>CURSOR: 1
|
||||
|
||||
zletest $'10b1\eFb\C-n'
|
||||
0:[0-9]0b[01] will increment the binary 0b[01] when the cursor is on b
|
||||
>BUFFER: 10b10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'10b1\e\C-n'
|
||||
0:[0-9]0b[01] will increment the binary 0b[01] when the cursor is on the right of b
|
||||
>BUFFER: 10b10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'10o7\e0\C-n'
|
||||
0:[0-9]0o[0-7] will become [0-9]1o[0-7] when incremented from the left of o
|
||||
>BUFFER: 11o7
|
||||
>CURSOR: 1
|
||||
|
||||
zletest $'10o7\eFo\C-n'
|
||||
0:[0-9]0o[0-7] will increment the octal 0o[0-7] when the cursor is on o
|
||||
>BUFFER: 10o10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'10o7\e\C-n'
|
||||
0:[0-9]0o[0-7] will increment the octal 0o[0-7] when the cursor is on the right of o
|
||||
>BUFFER: 10o10
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'0b0x9\eF0\C-n'
|
||||
0:0b0x[0-9a-f] will increment the binary 0b0 when the cursor is on the left of x
|
||||
>BUFFER: 0b1x9
|
||||
>CURSOR: 2
|
||||
|
||||
zletest $'0b0x9\eFx\C-n'
|
||||
0:0b0x[0-9a-f] will increment the hexadecimal 0x[0-9a-f] when the cursor is on top of x
|
||||
>BUFFER: 0b0xa
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'0b0x9\e\C-n'
|
||||
0:0b0x[0-9a-f] will increment the hexadecimal 0x[0-9a-f] when the cursor is on the right of x
|
||||
>BUFFER: 0b0xa
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'echo 012ab\eF i\C-n'
|
||||
0:incarg does nothing when the cursor is placed just to the left of an integer
|
||||
>BUFFER: echo 012ab
|
||||
>CURSOR: 4
|
||||
|
||||
zletest $'echo 012ab\eF0i\C-n'
|
||||
0:incarg works when the cursor is placed at the leftmost digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 8
|
||||
|
||||
zletest $'echo 012ab\eF1i\C-n'
|
||||
0:incarg works when the cursor is placed at the inner digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 8
|
||||
|
||||
zletest $'echo 012ab\eF2i\C-n'
|
||||
0:incarg works when the cursor is placed at the rightmost digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 8
|
||||
|
||||
zletest $'echo 012ab\eFai\C-n'
|
||||
0:incarg works when the cursor is placed just to the right of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 8
|
||||
|
||||
zletest $'echo 012ab\ei\C-n'
|
||||
0:incarg does nothing when the cursor is placed more than a single letter away to the right
|
||||
>BUFFER: echo 012ab
|
||||
>CURSOR: 9
|
||||
|
||||
zletest $'echo 012ab\eF \C-n'
|
||||
0:vim-incarg works when the cursor is placed to the left of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 7
|
||||
|
||||
zletest $'echo 012ab\eF0\C-n'
|
||||
0:vim-incarg works when the cursor is placed at the leftmost digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 7
|
||||
|
||||
zletest $'echo 012ab\eF1\C-n'
|
||||
0:vim-incarg works when the cursor is placed at the inner digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 7
|
||||
|
||||
zletest $'echo 012ab\eF2\C-n'
|
||||
0:incarg works when the cursor is placed at the rightmost digit of an integer
|
||||
>BUFFER: echo 013ab
|
||||
>CURSOR: 7
|
||||
|
||||
zletest $'echo 012ab\eFa\C-n'
|
||||
0:vim-incarg does nothing when the cursor is placed to the right of an integer
|
||||
>BUFFER: echo 012ab
|
||||
>CURSOR: 8
|
||||
|
||||
zletest $'echo 012ab\ei\C-n'
|
||||
0:vim-incarg does nothing when the cursor is placed more than a single letter away to the right
|
||||
>BUFFER: echo 012ab
|
||||
>CURSOR: 9
|
||||
|
||||
%clean
|
||||
|
||||
zmodload -ui zsh/zpty
|
||||
Loading…
Reference in New Issue