tjh.dev
Clone of https://github.com/NixOS/nixpkgs.git (to stress-test knotserver)
1{
2 lib,
3 stdenv,
4 fetchurl,
5}:
6
7let
8
9 srcs = {
10 lemon = fetchurl {
11 sha256 = "1c5pk2hz7j9hix5mpc38rwnm8dnlr2jqswf4lan6v78ccbyqzkjx";
12 url = "http://www.sqlite.org/src/raw/tool/lemon.c?name=680980c7935bfa1edec20c804c9e5ba4b1dd96f5";
13 name = "lemon.c";
14 };
15 lempar = fetchurl {
16 sha256 = "1ba13a6yh9j2cs1aw2fh4dxqvgf399gxq1gpp4sh8q0f2w6qiw3i";
17 url = "http://www.sqlite.org/src/raw/tool/lempar.c?name=01ca97f87610d1dac6d8cd96ab109ab1130e76dc";
18 name = "lempar.c";
19 };
20 };
21
22in
23stdenv.mkDerivation {
24 pname = "lemon";
25 version = "1.69";
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 = with lib; {
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 = licenses.publicDomain;
49 platforms = platforms.unix;
50 };
51}