函数式动态编程语言-Crumb
2023-08-29 21:45:27 
阿炯
Crumb 是一门函数式编程语言，没有 “关键字”，一切皆函数 (0 keywords, everything is a function)。其他特性包括提供垃圾回收 (GC)、动态类型、具有简洁的语法和详细的标准库。采用C语言编写开发。
Crumb is a high level, functional, interpreted, dynamically typed, general-purpose programming language, with a terse syntax, and a verbose standard library.
标准库包括：IO、Comparisons、Logical Operators、Arithmetic、Control、Types、List and String 等。
Features:
Strictly no side effects* to help you write functional code
The ability to localize the effects of imported Crumb files.
Dynamic typing and garbage collection.
0 keywords, everything is a function.
All data in crumb is one of 6 different types:
string
integer
float
function/native function
list
void
示例代码
table = (map (range 10) {_ y ->
<- (map (range 10) {item x ->
<- (multiply (add x 1) (add y 1))
})
})
(loop 100 {i ->
i = (add i 1)
(if (is (remainder i 15) 0) {
(print "fizzbuzz\n")
} {
(if (is (remainder i 3) 0) {
(print "fizz\n")
} {
(if (is (remainder i 5) 0) {
(print "buzz\n")
} {
(print i "\n")
})
})
})
})
实现斐波那契数列
// use a simple recursive function to calculate the nth fibonacci number
fibonacci = {n ->
<- (if (is n 0) {<- 0} {
<- (if (is n 1) {<- 1} {
<- (add
(fibonacci (subtract n 1))
(fibonacci (subtract n 2))
)
})
})
}
(until "stop" {state n ->
(print (add n 1) "-" (fibonacci (add n 1)) "\n")
})
更多示例代码可见此处。
最新版本：
项目主页：https://github.com/liam-ilan/crumb/
Crumb is a high level, functional, interpreted, dynamically typed, general-purpose programming language, with a terse syntax, and a verbose standard library.
标准库包括：IO、Comparisons、Logical Operators、Arithmetic、Control、Types、List and String 等。
Features:
Strictly no side effects* to help you write functional code
The ability to localize the effects of imported Crumb files.
Dynamic typing and garbage collection.
0 keywords, everything is a function.
All data in crumb is one of 6 different types:
string
integer
float
function/native function
list
void
示例代码
table = (map (range 10) {_ y ->
<- (map (range 10) {item x ->
<- (multiply (add x 1) (add y 1))
})
})
(loop 100 {i ->
i = (add i 1)
(if (is (remainder i 15) 0) {
(print "fizzbuzz\n")
} {
(if (is (remainder i 3) 0) {
(print "fizz\n")
} {
(if (is (remainder i 5) 0) {
(print "buzz\n")
} {
(print i "\n")
})
})
})
})
实现斐波那契数列
// use a simple recursive function to calculate the nth fibonacci number
fibonacci = {n ->
<- (if (is n 0) {<- 0} {
<- (if (is n 1) {<- 1} {
<- (add
(fibonacci (subtract n 1))
(fibonacci (subtract n 2))
)
})
})
}
(until "stop" {state n ->
(print (add n 1) "-" (fibonacci (add n 1)) "\n")
})
更多示例代码可见此处。
最新版本：
项目主页：https://github.com/liam-ilan/crumb/