tjh.dev
nixpkgs mirror (for testing)
github.com/NixOS/nixpkgs
nix
1{
2 lib,
3 stdenv,
4 fetchurl,
5}:
6
7let
8
9 srcs = {
10 lemon = fetchurl {
11 hash = "sha256-TXVOEtRpOhLCyi4C3RMt0lHmMp/y2K5YdL8ND6WPrOY=";
12 url = "https://www.sqlite.org/src/raw/3fdc16b23f1ea0c91c049b518fc3f75c71843dbfe2b447fcb3cd92d9e4f219f8?at=lemon.c";
13 name = "lemon.c";
14 };
15 lempar = fetchurl {
16 hash = "sha256-TYKrUJHtpoljeRWZq4Y1rYLlu7LeM/HuUhe3LJZZkVo=";
17 url = "https://www.sqlite.org/src/raw/b57e1780bf8098dd4a9a5bba537f994276ea825a420f6165153e5894dc2dfb07?at=lempar.c";
18 name = "lempar.c";
19 };
20 };
21
22in
23stdenv.mkDerivation {
24 pname = "lemon";
25 version = "1.0-unstable";
26
27 dontUnpack = true;
28
29 buildPhase = ''
30 sh -xc "$CC ${srcs.lemon} -o lemon"
31 '';
32
33 installPhase = ''
34 install -Dvm755 lemon $out/bin/lemon
35 install -Dvm644 ${srcs.lempar} $out/bin/lempar.c
36 '';
37
38 meta = {
39 description = "LALR(1) parser generator";
40 mainProgram = "lemon";
41 longDescription = ''
42 The Lemon program is an LALR(1) parser generator that takes a
43 context-free grammar and converts it into a subroutine that will parse a
44 file using that grammar. Lemon is similar to the much more famous
45 programs "yacc" and "bison", but is not compatible with either.
46 '';
47 homepage = "http://www.hwaci.com/sw/lemon/";
48 license = lib.licenses.publicDomain;
49 platforms = lib.platforms.unix;
50 };
51}