Added back revers_str and changed the example script

This commit is contained in:
Brandon Rozek 2020-12-14 10:19:02 -05:00
parent 46722c9b5d
commit 705798eeb0
2 changed files with 33 additions and 119 deletions

View file

@ -4,26 +4,26 @@ source ../src/fun.sh
seq 1 4 | sum
seq 1 4 | product
factorial 4
seq 1 4 | scanl lambda a b . 'echo $(plus $a $b)'
echo map mul
seq 1 4 | map lambda a . 'echo $(mul $a 2)'
echo map sub
seq 1 4 | map lambda a . 'echo $(sub $a 2)'
echo map plsu
seq 1 4 | map lambda a . 'echo $(plus $a 2)'
echo map div
seq 1 4 | map lambda a . 'echo $(div $a 2)'
echo map mod
seq 1 4 | map lambda a . 'echo $(mod $a 2)'
seq 1 4 | scanl lambda a b . 'echo $(add $a $b)'
echo map multiply
seq 1 4 | list_map lambda a . 'echo $(multiply $a 2)'
echo map minus
seq 1 4 | list_map lambda a . 'echo $(minus $a 2)'
echo map add
seq 1 4 | list_map lambda a . 'echo $(add $a 2)'
echo map divide
seq 1 4 | list_map lambda a . 'echo $(divide $a 2)'
echo list_map mod
seq 1 4 | list_map lambda a . 'echo $(mod $a 2)'
echo 'list & head'
list 1 2 3 4 5 | lhead
list {1..2} | append {3..4} | prepend {99..102}
list 1 2 3 4 5 | list_head
list {1..2} | list_append {3..4} | list_prepend {99..102}
list {1..2} | unlist
list {1..10} | lhead
list {1..10} | drop 7
list {1..10} | take 3
list {1..10} | last
list {1..10} | map λ a . 'echo $(mul $a 2)'
list {1..10} | list_head
list {1..10} | list_drop 7
list {1..10} | list_take 3
list {1..10} | list_last
list {1..10} | list_map λ a . 'echo $(multiply $a 2)'
id() {
λ x . '$x'
@ -37,123 +37,32 @@ foobar() {
list {1,2,3} | foobar
echo -n abcdefg | revers_str # gfedcba
echo -n abcdefg | splitc | join , '[' ']' # [a,b,c,d,e,f,g]
echo -n abcdefg | splitc | revers | join , '[' ']' # [g,f,e,d,c,b,a]
echo -n abcdefg | revers_str # gfedcba
echo -n abcdefg | splitc | list_join , # a,b,c,d,e,f,g
echo -n abcdefg | splitc | revers | list_join , # g,f,e,d,c,b,a
echo -n ' abcdefg' | splitc | foldr lambda a b . 'echo $a$b' # gfedcba
echo 'ls' | try λ cmd status ret . 'echo $cmd [$status]; echo $ret'
list {1..10} | filter lambda a . '[[ $(mod $a 2) -eq 0 ]] && ret true || ret false' | join , '[' ']' # [2,4,6,8,10]
function add() {
expr $1 + $2
}
curry add3 add 3
add3 9
list {1..10} | filter lambda a . '[[ $(mod $a 2) -eq 0 ]] && ret true || ret false' | list_join , # 2,4,6,8,10
list a b c d | foldl lambda acc el . 'echo -n $acc-$el'
list '' a b c d | foldr lambda acc el . 'if [[ ! -z $acc ]]; then echo -n $acc-$el; else echo -n $el; fi'
seq 1 4 | foldl lambda acc el . 'echo $(($acc + $el))'
#1 - 2 - 3 - 4
seq 1 4 | foldl lambda acc el . 'echo $(($acc - $el))'
#1 - 4 - 3 - 2
seq 1 4 | foldr lambda acc el . 'echo $(($acc - $el))'
#1 + (1 + 1) * 2 + (4 + 1) * 3 + (15 + 1) * 4 = 64
seq 1 4 | foldl lambda acc el . 'echo $(mul $(($acc + 1)) $el)'
#1 + (1 + 1) * 4 + (8 + 1) * 3 + (27 + 1) * 2 = 56
seq 1 4 | foldr lambda acc el . 'echo $(mul $(($acc + 1)) $el)'
seq 1 4 | foldl lambda acc el . 'echo $(multiply $(($acc + 1)) $el)'
tup a 1
tupl $(tup a 1)
tupr $(tup a 1)
tup a 1 | tupl
tup a 1 | tupr
seq 1 10 | buff lambda a b . 'echo $(($a + $b))'
echo 'XX'
seq 1 10 | buff lambda a b c d e . 'echo $(($a + $b + $c + $d + $e))'
list a b c d e f | lzip $(seq 1 10)
list a b c d e f | list_zip $(seq 1 10)
echo
list a b c d e f | lzip $(seq 1 10) | last | tupr
arg='[key1=value1,key2=value2,key3=value3]'
get() {
local pidx=$1
local idx=$2
local arg=$3
echo $arg | tr -d '[]' | cut -d',' -f$idx | cut -d'=' -f$pidx
}
curry get_key get 1
curry get_value get 2
get_key 1 $arg
get_value 1 $arg
seq 1 3 | map lambda a . 'tup $(get_key $a $arg) $(get_value $a $arg)'
echo 'ls /home' | try λ cmd status ret . 'echo $cmd [$status]; echo $ret'
echo '/home' | try λ cmd status ret . 'echo $cmd [$status]; echo $ret'
list a b c d e f | list_zip $(seq 1 10) | list_last | tupr
seq 1 5 | scanl lambda a b . 'echo $(($a + $b))'
seq 1 5 | scanl lambda a b . 'echo $(($a + $b))' | last
seq 1 5 | scanl lambda a b . 'echo $(($a + $b))' | list_last
seq 2 3 | map lambda a . 'seq 1 $a' | join , [ ]
list a b c | map lambda a . 'echo $a; echo $a | tr a-z A-z' | join , [ ]
echo 0 | cat - <(curl -s https://raw.githubusercontent.com/ssledz/bash-fun/v1.1.1/src/fun.sh) | \
map lambda a . 'list $a' | foldl lambda acc el . 'echo $(($acc + 1))'
echo 0 | cat - <(curl -s curl -s https://raw.githubusercontent.com/ssledz/bash-fun/v1.1.1/src/fun.sh) \
| foldl lambda acc el . 'echo $(($acc + 1))'
factorial() {
fact_iter() {
local product=$1
local counter=$2
local max_count=$3
if [[ $counter -gt $max_count ]]; then
echo $product
else
fact_iter $(echo $counter\*$product | bc) $(($counter + 1)) $max_count
fi
}
fact_iter 1 1 $1
}
factorial_trampoline() {
fact_iter() {
local product=$1
local counter=$2
local max_count=$3
if [[ $counter -gt $max_count ]]; then
res $product
else
call fact_iter $(echo $counter\*$product | bc) $(($counter + 1)) $max_count
fi
}
with_trampoline fact_iter 1 1 $1
}
echo Factorial test
time factorial 30
time factorial_trampoline 30
# would be error
#time factorial 60
time factorial_trampoline 60
seq 2 3 | list_map lambda a . 'seq 1 $a' | list_join ,
list a b c | list_map lambda a . 'echo $a; echo $a | tr a-z A-z' | list_join ,

View file

@ -361,6 +361,11 @@ revers() {
echo "$result"
}
# Reverses a string
revers_str() {
splitc | revers | list_join
}
# Removes multiple occurences of
# a single character from the beginning
# of the list.