blob: 37ea5ae1ace708985742caf142341b225bd97f04 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
# SimpleShell (working title)
* SimpleShell is meant to be a programming language to use in place of shell
languages (POSIX sh, Bash, ...).
* SimpleShell compiles to POSIX sh, where the output is supposed to be
human-readable.
* The syntax is de facto a mixture of sh, C and Haskell.
## Variables
* Variables are local to their function or procedure; there are no (nested)
variable scopes.
* All variables have static types. Same for function and procedure
signatures.
## Functions
* Functions are pure; they compute a single value from a list of arguments.
* Compare pure Haskell functions.
## Procedures
* Procedures are similar to POSIX sh functions.
* Procedures take a list of arguments, and return a pair of
exit code and return value.
* Procedures may receive data from stdin and write data to stdout and stderr.
|
