new lang => lexer and parser done
This commit is contained in:
commit
cdc6147a35
GPG key ID:
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"windows_x86_64_msvc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_gnullvm"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
|
||||||
3
Cargo.toml
Normal file
3
Cargo.toml
Normal file
|
|
@ -0,0 +1,3 @@
|
||||||
|
[workspace]
|
||||||
|
resolver = "2"
|
||||||
|
members = [ "matrix", "matrix-repl" ]
|
||||||
385
matrix-repl/Cargo.lock
generated
Normal file
385
matrix-repl/Cargo.lock
generated
Normal file
|
|
@ -0,0 +1,385 @@
|
||||||
|
# This file is automatically @generated by Cargo.
|
||||||
|
# It is not intended for manual editing.
|
||||||
|
version = 3
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "aho-corasick"
|
||||||
|
version = "1.1.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
|
||||||
|
dependencies = [
|
||||||
|
"memchr",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "anyhow"
|
||||||
|
version = "1.0.79"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "080e9890a082662b09c1ad45f567faeeb47f22b5fb23895fbe1e651e718e25ca"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "autocfg"
|
||||||
|
version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "bitflags"
|
||||||
|
version = "2.4.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ed570934406eb16438a4e976b1b4500774099c13b8cb96eec99f620f05090ddf"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "cfg-if"
|
||||||
|
version = "1.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "clipboard-win"
|
||||||
|
version = "5.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "3ec832972fefb8cf9313b45a0d1945e29c9c251f1d4c6eafc5fe2124c02d2e81"
|
||||||
|
dependencies = [
|
||||||
|
"error-code",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "endian-type"
|
||||||
|
version = "0.1.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c34f04666d835ff5d62e058c3995147c06f42fe86ff053337632bca83e42702d"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "errno"
|
||||||
|
version = "0.3.8"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245"
|
||||||
|
dependencies = [
|
||||||
|
"libc",
|
||||||
|
"windows-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "error-code"
|
||||||
|
version = "3.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "281e452d3bad4005426416cdba5ccfd4f5c1280e10099e21db27f7c1c28347fc"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "fd-lock"
|
||||||
|
version = "4.0.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7e5768da2206272c81ef0b5e951a41862938a6070da63bcea197899942d3b947"
|
||||||
|
dependencies = [
|
||||||
|
"cfg-if",
|
||||||
|
"rustix",
|
||||||
|
"windows-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "home"
|
||||||
|
version = "0.5.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
|
||||||
|
dependencies = [
|
||||||
|
"windows-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "libc"
|
||||||
|
version = "0.2.153"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "linux-raw-sys"
|
||||||
|
version = "0.4.13"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "log"
|
||||||
|
version = "0.4.20"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "matrix"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"anyhow",
|
||||||
|
"num-complex",
|
||||||
|
"num-rational",
|
||||||
|
"regex",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "matrix-repl"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"matrix",
|
||||||
|
"rustyline",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "memchr"
|
||||||
|
version = "2.7.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "523dc4f511e55ab87b694dc30d0f820d60906ef06413f93d4d7a1385599cc149"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "nibble_vec"
|
||||||
|
version = "0.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "77a5d83df9f36fe23f0c3648c6bbb8b0298bb5f1939c8f2704431371f4b84d43"
|
||||||
|
dependencies = [
|
||||||
|
"smallvec",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "nix"
|
||||||
|
version = "0.27.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "2eb04e9c688eff1c89d72b407f168cf79bb9e867a9d3323ed6c01519eb9cc053"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"cfg-if",
|
||||||
|
"libc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-bigint"
|
||||||
|
version = "0.4.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "608e7659b5c3d7cba262d894801b9ec9d00de989e8a82bd4bef91d08da45cdc0"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
"num-integer",
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-complex"
|
||||||
|
version = "0.4.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "23c6602fda94a57c990fe0df199a035d83576b496aa29f4e634a8ac6004e68a6"
|
||||||
|
dependencies = [
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-integer"
|
||||||
|
version = "0.1.46"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
|
||||||
|
dependencies = [
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-rational"
|
||||||
|
version = "0.4.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
"num-bigint",
|
||||||
|
"num-integer",
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-traits"
|
||||||
|
version = "0.2.18"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "radix_trie"
|
||||||
|
version = "0.2.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
|
||||||
|
dependencies = [
|
||||||
|
"endian-type",
|
||||||
|
"nibble_vec",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex"
|
||||||
|
version = "1.10.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
|
||||||
|
dependencies = [
|
||||||
|
"aho-corasick",
|
||||||
|
"memchr",
|
||||||
|
"regex-automata",
|
||||||
|
"regex-syntax",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex-automata"
|
||||||
|
version = "0.4.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5bb987efffd3c6d0d8f5f89510bb458559eab11e4f869acb20bf845e016259cd"
|
||||||
|
dependencies = [
|
||||||
|
"aho-corasick",
|
||||||
|
"memchr",
|
||||||
|
"regex-syntax",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex-syntax"
|
||||||
|
version = "0.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "rustix"
|
||||||
|
version = "0.38.31"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "6ea3e1a662af26cd7a3ba09c0297a31af215563ecf42817c98df621387f4e949"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"errno",
|
||||||
|
"libc",
|
||||||
|
"linux-raw-sys",
|
||||||
|
"windows-sys",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "rustyline"
|
||||||
|
version = "13.0.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "02a2d683a4ac90aeef5b1013933f6d977bd37d51ff3f4dad829d4931a7e6be86"
|
||||||
|
dependencies = [
|
||||||
|
"bitflags",
|
||||||
|
"cfg-if",
|
||||||
|
"clipboard-win",
|
||||||
|
"fd-lock",
|
||||||
|
"home",
|
||||||
|
"libc",
|
||||||
|
"log",
|
||||||
|
"memchr",
|
||||||
|
"nix",
|
||||||
|
"radix_trie",
|
||||||
|
"unicode-segmentation",
|
||||||
|
"unicode-width",
|
||||||
|
"utf8parse",
|
||||||
|
"winapi",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "smallvec"
|
||||||
|
version = "1.13.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-segmentation"
|
||||||
|
version = "1.11.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "unicode-width"
|
||||||
|
version = "0.1.11"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "utf8parse"
|
||||||
|
version = "0.2.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi"
|
||||||
|
version = "0.3.9"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||||
|
dependencies = [
|
||||||
|
"winapi-i686-pc-windows-gnu",
|
||||||
|
"winapi-x86_64-pc-windows-gnu",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-i686-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-x86_64-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-sys"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
|
||||||
|
dependencies = [
|
||||||
|
"windows-targets",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows-targets"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
|
||||||
|
dependencies = [
|
||||||
|
"windows_aarch64_gnullvm",
|
||||||
|
"windows_aarch64_msvc",
|
||||||
|
"windows_i686_gnu",
|
||||||
|
"windows_i686_msvc",
|
||||||
|
"windows_x86_64_gnu",
|
||||||
|
"windows_x86_64_gnullvm",
|
||||||
|
"windows_x86_64_msvc",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_gnullvm"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_aarch64_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_gnu"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_i686_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnu"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_gnullvm"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "windows_x86_64_msvc"
|
||||||
|
version = "0.52.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
|
||||||
10
matrix-repl/Cargo.toml
Normal file
10
matrix-repl/Cargo.toml
Normal file
|
|
@ -0,0 +1,10 @@
|
||||||
|
[package]
|
||||||
|
name = "matrix-repl"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
matrix = { path = "../matrix" }
|
||||||
|
rustyline = "13"
|
||||||
18
matrix-repl/src/main.rs
Normal file
18
matrix-repl/src/main.rs
Normal file
|
|
@ -0,0 +1,18 @@
|
||||||
|
use matrix::parse::Parser;
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
|
||||||
|
let mut rl = rustyline::DefaultEditor::new().unwrap();
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let Ok(line) = rl.readline(">> ") else {
|
||||||
|
break;
|
||||||
|
};
|
||||||
|
let ast = Parser::parse(line);
|
||||||
|
match ast {
|
||||||
|
Ok(ast) => println!("{ast:?}"),
|
||||||
|
Err(err) => println!("{err}")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
119
matrix/Cargo.lock
generated
Normal file
119
matrix/Cargo.lock
generated
Normal file
|
|
@ -0,0 +1,119 @@
|
||||||
|
# This file is automatically @generated by Cargo.
|
||||||
|
# It is not intended for manual editing.
|
||||||
|
version = 3
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "aho-corasick"
|
||||||
|
version = "1.1.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
|
||||||
|
dependencies = [
|
||||||
|
"memchr",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "anyhow"
|
||||||
|
version = "1.0.79"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "080e9890a082662b09c1ad45f567faeeb47f22b5fb23895fbe1e651e718e25ca"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "autocfg"
|
||||||
|
version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "matrix"
|
||||||
|
version = "0.1.0"
|
||||||
|
dependencies = [
|
||||||
|
"anyhow",
|
||||||
|
"num-complex",
|
||||||
|
"num-rational",
|
||||||
|
"regex",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "memchr"
|
||||||
|
version = "2.7.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "523dc4f511e55ab87b694dc30d0f820d60906ef06413f93d4d7a1385599cc149"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-bigint"
|
||||||
|
version = "0.4.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "608e7659b5c3d7cba262d894801b9ec9d00de989e8a82bd4bef91d08da45cdc0"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
"num-integer",
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-complex"
|
||||||
|
version = "0.4.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "23c6602fda94a57c990fe0df199a035d83576b496aa29f4e634a8ac6004e68a6"
|
||||||
|
dependencies = [
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-integer"
|
||||||
|
version = "0.1.46"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
|
||||||
|
dependencies = [
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-rational"
|
||||||
|
version = "0.4.1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
"num-bigint",
|
||||||
|
"num-integer",
|
||||||
|
"num-traits",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "num-traits"
|
||||||
|
version = "0.2.18"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
|
||||||
|
dependencies = [
|
||||||
|
"autocfg",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex"
|
||||||
|
version = "1.10.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
|
||||||
|
dependencies = [
|
||||||
|
"aho-corasick",
|
||||||
|
"memchr",
|
||||||
|
"regex-automata",
|
||||||
|
"regex-syntax",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex-automata"
|
||||||
|
version = "0.4.5"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5bb987efffd3c6d0d8f5f89510bb458559eab11e4f869acb20bf845e016259cd"
|
||||||
|
dependencies = [
|
||||||
|
"aho-corasick",
|
||||||
|
"memchr",
|
||||||
|
"regex-syntax",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "regex-syntax"
|
||||||
|
version = "0.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
|
||||||
12
matrix/Cargo.toml
Normal file
12
matrix/Cargo.toml
Normal file
|
|
@ -0,0 +1,12 @@
|
||||||
|
[package]
|
||||||
|
name = "matrix"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
anyhow = "1"
|
||||||
|
num-complex = "0.4"
|
||||||
|
num-rational = "0.4"
|
||||||
|
regex = "1"
|
||||||
162
matrix/src/ast.rs
Normal file
162
matrix/src/ast.rs
Normal file
|
|
@ -0,0 +1,162 @@
|
||||||
|
use std::{rc::Rc, collections::HashMap};
|
||||||
|
|
||||||
|
use regex::Regex;
|
||||||
|
use num_rational::Rational64;
|
||||||
|
use num_complex::Complex64;
|
||||||
|
|
||||||
|
use crate::lex::Token;
|
||||||
|
|
||||||
|
pub type List = Vec<Value>;
|
||||||
|
pub type Matrix = (u16, u16, Vec<Value>);
|
||||||
|
pub type Table = HashMap<Rc<str>, Value>;
|
||||||
|
|
||||||
|
pub type InlineList = Vec<Expr>;
|
||||||
|
pub type InlineMatrix = (u16, u16, Vec<Expr>);
|
||||||
|
pub type InlineTable = Vec<(Expr, Expr)>;
|
||||||
|
|
||||||
|
pub type RcList = Rc<List>;
|
||||||
|
pub type RcMatrix = Rc<Matrix>;
|
||||||
|
pub type RcString = Rc<str>;
|
||||||
|
pub type RcTable = Rc<Table>;
|
||||||
|
pub type RcRegex = Rc<Regex>;
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Value {
|
||||||
|
Nil,
|
||||||
|
Bool(bool),
|
||||||
|
Int(i64),
|
||||||
|
Float(f64),
|
||||||
|
Ratio(Rational64),
|
||||||
|
Complex(Complex64),
|
||||||
|
Regex(RcRegex),
|
||||||
|
String(RcString),
|
||||||
|
List(RcList),
|
||||||
|
Matrix(RcMatrix),
|
||||||
|
Table(RcTable),
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum UnaryOp {
|
||||||
|
// normal math
|
||||||
|
Negate,
|
||||||
|
// equality
|
||||||
|
Not,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl TryFrom<Token> for UnaryOp {
|
||||||
|
type Error = ();
|
||||||
|
|
||||||
|
fn try_from(value: Token) -> Result<Self, Self::Error> {
|
||||||
|
use Token::*;
|
||||||
|
Ok(match value {
|
||||||
|
Subtract => Self::Negate,
|
||||||
|
Not => Self::Not,
|
||||||
|
_ => return Err(())
|
||||||
|
})
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum BinaryOp {
|
||||||
|
// normal math
|
||||||
|
Add,
|
||||||
|
Subtract,
|
||||||
|
Multiply,
|
||||||
|
Divide,
|
||||||
|
Modulo,
|
||||||
|
Power,
|
||||||
|
// binary math
|
||||||
|
BitwiseAnd,
|
||||||
|
BitwiseOr,
|
||||||
|
BitwiseXor,
|
||||||
|
BitwiseShiftLeft,
|
||||||
|
BitwiseShiftRight,
|
||||||
|
// equality
|
||||||
|
Equals,
|
||||||
|
NotEquals,
|
||||||
|
GreaterEquals,
|
||||||
|
LessEquals,
|
||||||
|
GreaterThan,
|
||||||
|
LessThan,
|
||||||
|
And,
|
||||||
|
Or,
|
||||||
|
// assignment
|
||||||
|
Assign
|
||||||
|
}
|
||||||
|
|
||||||
|
impl TryFrom<Token> for BinaryOp {
|
||||||
|
type Error = ();
|
||||||
|
|
||||||
|
fn try_from(value: Token) -> Result<Self, Self::Error> {
|
||||||
|
use Token::*;
|
||||||
|
Ok(match value {
|
||||||
|
Equal => BinaryOp::Equals,
|
||||||
|
NotEqual => Self::Equals,
|
||||||
|
GreaterEqual => Self::GreaterEquals,
|
||||||
|
LessEqual => Self::LessEquals,
|
||||||
|
GreaterThan => Self::GreaterThan,
|
||||||
|
LessThan => Self::LessThan,
|
||||||
|
And => Self::And,
|
||||||
|
Or => Self::Or,
|
||||||
|
BitwiseShiftLeft => Self::BitwiseShiftLeft,
|
||||||
|
BitwiseShiftRight => Self::BitwiseShiftRight,
|
||||||
|
BitwiseAnd => Self::BitwiseAnd,
|
||||||
|
BitwiseOr => Self::BitwiseOr,
|
||||||
|
BitwiseXor => Self::BitwiseXor,
|
||||||
|
Add => Self::Add,
|
||||||
|
Subtract => Self::Subtract,
|
||||||
|
Multiply => Self::Multiply,
|
||||||
|
Divide => Self::Divide,
|
||||||
|
Modulo => Self::Modulo,
|
||||||
|
Power => Self::Power,
|
||||||
|
Assign => Self::Assign,
|
||||||
|
_ => return Err(())
|
||||||
|
})
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Expr {
|
||||||
|
Literal(Value),
|
||||||
|
Ident(Rc<str>),
|
||||||
|
|
||||||
|
UnaryOp(Box<Expr>, UnaryOp),
|
||||||
|
BinaryOp(Box<Expr>, Box<Expr>, BinaryOp),
|
||||||
|
|
||||||
|
Let(Rc<str>, Box<Expr>),
|
||||||
|
|
||||||
|
Index(Box<Expr>, Vec<Expr>),
|
||||||
|
FnCall(Box<Expr>, Vec<Expr>),
|
||||||
|
|
||||||
|
List(InlineList),
|
||||||
|
Matrix(InlineMatrix),
|
||||||
|
Table(InlineTable),
|
||||||
|
|
||||||
|
Block(Vec<Expr>),
|
||||||
|
Function(Rc<str>, Vec<Rc<str>>, Vec<Expr>),
|
||||||
|
|
||||||
|
Continue,
|
||||||
|
Break,
|
||||||
|
Return(Box<Expr>),
|
||||||
|
|
||||||
|
If(Box<Expr>, Box<Expr>, Option<Box<Expr>>),
|
||||||
|
Loop(Vec<Expr>),
|
||||||
|
While(Box<Expr>, Vec<Expr>),
|
||||||
|
DoWhile(Box<Expr>, Vec<Expr>)
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Expr {
|
||||||
|
pub fn optimize(self) -> Self {
|
||||||
|
use Expr::*;
|
||||||
|
match self {
|
||||||
|
Block(mut block) => {
|
||||||
|
if block.len() == 1 {
|
||||||
|
block.pop().unwrap().optimize()
|
||||||
|
} else {
|
||||||
|
Block(block.into_iter().map(|e| e.optimize()).collect())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
_ => self
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
595
matrix/src/lex.rs
Normal file
595
matrix/src/lex.rs
Normal file
|
|
@ -0,0 +1,595 @@
|
||||||
|
use std::{rc::Rc, fmt::Debug};
|
||||||
|
use regex::Regex;
|
||||||
|
|
||||||
|
pub struct RegexToken {
|
||||||
|
regex: Regex
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Debug for RegexToken {
|
||||||
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||||
|
write!(f, "{:?}", self.regex)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl PartialEq for RegexToken {
|
||||||
|
fn eq(&self, other: &Self) -> bool {
|
||||||
|
self.regex.as_str().eq(other.regex.as_str())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<Regex> for RegexToken {
|
||||||
|
fn from(regex: Regex) -> Self {
|
||||||
|
Self { regex }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<RegexToken> for Regex {
|
||||||
|
fn from(value: RegexToken) -> Self {
|
||||||
|
value.regex
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, PartialEq)]
|
||||||
|
pub enum Token {
|
||||||
|
//syntax
|
||||||
|
LeftParen,
|
||||||
|
RightParen,
|
||||||
|
LeftBrack,
|
||||||
|
RightBrack,
|
||||||
|
LeftBrace,
|
||||||
|
RightBrace,
|
||||||
|
Assign,
|
||||||
|
Access,
|
||||||
|
SemiColon,
|
||||||
|
Arrow,
|
||||||
|
ThinArrow,
|
||||||
|
Comma,
|
||||||
|
|
||||||
|
// equality
|
||||||
|
Equal,
|
||||||
|
NotEqual,
|
||||||
|
GreaterEqual,
|
||||||
|
LessEqual,
|
||||||
|
GreaterThan,
|
||||||
|
LessThan,
|
||||||
|
|
||||||
|
And,
|
||||||
|
Or,
|
||||||
|
Not,
|
||||||
|
|
||||||
|
BitwiseShiftLeft,
|
||||||
|
BitwiseShiftRight,
|
||||||
|
BitwiseAnd,
|
||||||
|
BitwiseOr,
|
||||||
|
BitwiseXor,
|
||||||
|
|
||||||
|
// math
|
||||||
|
Regex(RegexToken),
|
||||||
|
Int(i64),
|
||||||
|
Float(f64),
|
||||||
|
Complex(f64),
|
||||||
|
String(Rc<str>),
|
||||||
|
Ident(Rc<str>),
|
||||||
|
|
||||||
|
Add,
|
||||||
|
Subtract,
|
||||||
|
Multiply,
|
||||||
|
Divide,
|
||||||
|
Modulo,
|
||||||
|
Power,
|
||||||
|
|
||||||
|
// keywords
|
||||||
|
If,
|
||||||
|
Else,
|
||||||
|
While,
|
||||||
|
Let,
|
||||||
|
Function,
|
||||||
|
True,
|
||||||
|
False,
|
||||||
|
Nil,
|
||||||
|
Continue,
|
||||||
|
Break,
|
||||||
|
Do,
|
||||||
|
Loop,
|
||||||
|
Return,
|
||||||
|
|
||||||
|
// eof
|
||||||
|
Eof,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Token {
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Token {
|
||||||
|
/// Returns `true` if the token is [`Regex`].
|
||||||
|
///
|
||||||
|
/// [`Regex`]: Token::Regex
|
||||||
|
#[must_use]
|
||||||
|
pub fn is_regex(&self) -> bool {
|
||||||
|
matches!(self, Self::Regex(..))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Error {
|
||||||
|
UnexpectedCharacter(char),
|
||||||
|
ExpectedChar(char, char),
|
||||||
|
InvalidCodepoint,
|
||||||
|
UnexpectedEof,
|
||||||
|
InvalidDigit(char),
|
||||||
|
InvalidStringEscape(char),
|
||||||
|
InvalidRegex(anyhow::Error),
|
||||||
|
InvalidNumber(String),
|
||||||
|
}
|
||||||
|
|
||||||
|
impl std::fmt::Display for Error {
|
||||||
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||||
|
use Error::*;
|
||||||
|
match self {
|
||||||
|
UnexpectedCharacter(char) => write!(f, "Unexpected char: '{char}'"),
|
||||||
|
UnexpectedEof => write!(f, "Unexpected end of file"),
|
||||||
|
ExpectedChar(expected, got) => write!(f, "Expected char: '{expected}', instead got: '{got}'"),
|
||||||
|
InvalidCodepoint => write!(f, "Invalid codepoint"),
|
||||||
|
InvalidDigit(char) => write!(f, "Invalid digit: '{char}'"),
|
||||||
|
InvalidStringEscape(char) => write!(f, "Invalid string escape: '\\{char}"),
|
||||||
|
InvalidRegex(err) => write!(f, "{err}"),
|
||||||
|
InvalidNumber(num) => write!(f, "Invalid number: '{num}'")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl std::error::Error for Error {}
|
||||||
|
|
||||||
|
pub type Result<T> = std::result::Result<T, self::Error>;
|
||||||
|
|
||||||
|
pub struct Lexer {
|
||||||
|
pub index: usize,
|
||||||
|
len: usize,
|
||||||
|
data: Vec<char>,
|
||||||
|
}
|
||||||
|
|
||||||
|
trait IsIdent {
|
||||||
|
fn is_initial_ident(&self) -> bool;
|
||||||
|
fn is_ident(&self) -> bool;
|
||||||
|
}
|
||||||
|
|
||||||
|
impl IsIdent for char {
|
||||||
|
fn is_initial_ident(&self) -> bool {
|
||||||
|
return self.is_alphabetic() || *self == '_';
|
||||||
|
}
|
||||||
|
fn is_ident(&self) -> bool {
|
||||||
|
return self.is_alphanumeric() || *self == '_';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl<T: Into<String>> From<T> for Lexer {
|
||||||
|
fn from(value: T) -> Self {
|
||||||
|
Self::new(value)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Lexer {
|
||||||
|
pub fn new<T: Into<String>>(input: T) -> Self {
|
||||||
|
let data: Vec<char> = input.into().chars().collect();
|
||||||
|
Self { index: 0, len: data.len(), data }
|
||||||
|
}
|
||||||
|
|
||||||
|
fn peek(&self) -> char {
|
||||||
|
if self.index >= self.len {
|
||||||
|
return '\0';
|
||||||
|
}
|
||||||
|
return self.data[self.index];
|
||||||
|
}
|
||||||
|
|
||||||
|
fn next(&mut self) -> char {
|
||||||
|
let c = self.peek();
|
||||||
|
self.index += 1;
|
||||||
|
return c;
|
||||||
|
}
|
||||||
|
|
||||||
|
fn next_not_eof(&mut self) -> Result<char> {
|
||||||
|
let c = self.next();
|
||||||
|
if c == '\0' {
|
||||||
|
return Err(Error::UnexpectedEof)
|
||||||
|
} else {
|
||||||
|
return Ok(c)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn next_expect(&mut self, expected: char) -> Result<char> {
|
||||||
|
let c = self.next();
|
||||||
|
if c != expected {
|
||||||
|
return Err(Error::ExpectedChar(expected, c))
|
||||||
|
} else {
|
||||||
|
return Ok(c)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn skip_whitespace(&mut self, ignore_newlines: bool) {
|
||||||
|
while self.peek().is_whitespace() && (!ignore_newlines || self.peek() != '\n') {
|
||||||
|
self.next();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn lex_string(&mut self, delimit: char) -> Result<Rc<str>> {
|
||||||
|
use Error::*;
|
||||||
|
|
||||||
|
let mut buf = String::new();
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let c = self.next_not_eof()?;
|
||||||
|
|
||||||
|
if c == delimit {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if c != '\\' {
|
||||||
|
buf.push(c);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
let next = self.next_not_eof()?;
|
||||||
|
match next {
|
||||||
|
'\'' | '\"' | '\\' => buf.push(c),
|
||||||
|
'0' => buf.push('\0'),
|
||||||
|
'a' => buf.push('\x07'),
|
||||||
|
'b' => buf.push('\x08'),
|
||||||
|
't' => buf.push('\t'),
|
||||||
|
'n' => buf.push('\n'),
|
||||||
|
'v' => buf.push('\x0b'),
|
||||||
|
'f' => buf.push('\x0c'),
|
||||||
|
'r' => buf.push('\r'),
|
||||||
|
'e' => buf.push('\x1b'),
|
||||||
|
'x' => {
|
||||||
|
let n1 = self.next_not_eof()?;
|
||||||
|
let n2 = self.next_not_eof()?;
|
||||||
|
buf.push(char::from_u32(
|
||||||
|
n1.to_digit(16).ok_or(InvalidDigit(n1))? * 16 +
|
||||||
|
n2.to_digit(16).ok_or(InvalidDigit(n2))?
|
||||||
|
).unwrap())
|
||||||
|
},
|
||||||
|
'u' => {
|
||||||
|
self.next_expect('{')?;
|
||||||
|
let mut n = 0u32;
|
||||||
|
loop {
|
||||||
|
let c = self.next_not_eof()?;
|
||||||
|
if c == '}' { break }
|
||||||
|
if n >= 0x10000000u32 {
|
||||||
|
return Err(InvalidCodepoint)
|
||||||
|
}
|
||||||
|
n = n * 16 + c.to_digit(16).ok_or(InvalidDigit(c))?;
|
||||||
|
}
|
||||||
|
let ch = char::from_u32(n).ok_or(InvalidCodepoint)?;
|
||||||
|
buf.push(ch);
|
||||||
|
|
||||||
|
},
|
||||||
|
_ => return Err(InvalidStringEscape(next))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(buf.into())
|
||||||
|
}
|
||||||
|
|
||||||
|
fn lex_ident(&mut self, initial: char) -> Result<Token> {
|
||||||
|
use Error::*;
|
||||||
|
use Token::*;
|
||||||
|
|
||||||
|
let mut buf = std::string::String::new();
|
||||||
|
|
||||||
|
if !initial.is_initial_ident() {
|
||||||
|
return Err(UnexpectedCharacter(initial))
|
||||||
|
}
|
||||||
|
|
||||||
|
buf.push(initial);
|
||||||
|
|
||||||
|
loop {
|
||||||
|
if self.peek().is_ident() {
|
||||||
|
buf.push(self.next());
|
||||||
|
} else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(match buf.as_str() {
|
||||||
|
"if" => If,
|
||||||
|
"else" => Else,
|
||||||
|
"while" => While,
|
||||||
|
"let" => Let,
|
||||||
|
"function" => Function,
|
||||||
|
"true" => True,
|
||||||
|
"false" => False,
|
||||||
|
"nil" => Nil,
|
||||||
|
"continue" => Continue,
|
||||||
|
"break" => Break,
|
||||||
|
"do" => Do,
|
||||||
|
"loop" => Loop,
|
||||||
|
"and" => And,
|
||||||
|
"or" => Or,
|
||||||
|
"not" => Not,
|
||||||
|
"return" => Return,
|
||||||
|
_ => Ident(buf.into())
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn lex_radix(&mut self, radix: i64, radix_char: char) -> Result<Token> {
|
||||||
|
use Token::*;
|
||||||
|
use Error::*;
|
||||||
|
|
||||||
|
let mut n = 0i64;
|
||||||
|
let mut char_found = false;
|
||||||
|
|
||||||
|
loop {
|
||||||
|
if let Some(i) = self.peek().to_digit(radix as u32) {
|
||||||
|
self.next();
|
||||||
|
n = n * radix + (i as i64);
|
||||||
|
char_found = true;
|
||||||
|
} else if self.peek().is_ident() {
|
||||||
|
return Err(InvalidDigit(self.peek()))
|
||||||
|
} else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if char_found {
|
||||||
|
return Ok(Int(n))
|
||||||
|
} else {
|
||||||
|
return Err(InvalidNumber(format!("0{radix_char}")))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn lex_number(&mut self, initial: char) -> Result<Token> {
|
||||||
|
use Error::*;
|
||||||
|
|
||||||
|
if initial == '0' {
|
||||||
|
match self.peek() {
|
||||||
|
'x' => {
|
||||||
|
self.next();
|
||||||
|
return self.lex_radix(16, 'x')
|
||||||
|
}
|
||||||
|
'o' => {
|
||||||
|
self.next();
|
||||||
|
return self.lex_radix(8, 'o');
|
||||||
|
}
|
||||||
|
_ => ()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut buf = String::new();
|
||||||
|
buf.push(initial);
|
||||||
|
|
||||||
|
if initial != '.' {
|
||||||
|
loop {
|
||||||
|
if !self.peek().is_digit(10) { break; }
|
||||||
|
buf.push(self.next());
|
||||||
|
}
|
||||||
|
|
||||||
|
if self.peek() == '.' {
|
||||||
|
buf.push(self.next());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
loop {
|
||||||
|
if !self.peek().is_digit(10) { break; }
|
||||||
|
buf.push(self.next());
|
||||||
|
}
|
||||||
|
|
||||||
|
if self.peek() == 'e' || self.peek() == 'E' {
|
||||||
|
buf.push(self.next());
|
||||||
|
if self.peek() == '+' || self.peek() == '-' {
|
||||||
|
buf.push(self.next());
|
||||||
|
}
|
||||||
|
|
||||||
|
loop {
|
||||||
|
if !self.peek().is_digit(10) { break; }
|
||||||
|
buf.push(self.next());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let complex = self.peek() == 'i';
|
||||||
|
if complex {
|
||||||
|
self.next();
|
||||||
|
}
|
||||||
|
|
||||||
|
if self.peek().is_ident() || self.peek() == '.' {
|
||||||
|
return Err(UnexpectedCharacter(self.peek()))
|
||||||
|
}
|
||||||
|
|
||||||
|
if let Ok(int) = buf.parse::<i64>() {
|
||||||
|
use Token::*;
|
||||||
|
if self.peek() == 'i' {
|
||||||
|
self.next();
|
||||||
|
return Ok(Complex(int as f64))
|
||||||
|
}
|
||||||
|
return Ok(Int(int))
|
||||||
|
}
|
||||||
|
|
||||||
|
if let Ok(float) = buf.parse::<f64>() {
|
||||||
|
use Token::*;
|
||||||
|
if self.peek() == 'i' {
|
||||||
|
self.next();
|
||||||
|
return Ok(Complex(float))
|
||||||
|
}
|
||||||
|
return Ok(Float(float))
|
||||||
|
}
|
||||||
|
|
||||||
|
Err(Error::InvalidNumber(buf))
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn reset(&mut self) {
|
||||||
|
self.index = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
fn peek_token_impl(&mut self, ignore_newlines: bool) -> Result<Token> {
|
||||||
|
let idx = self.index;
|
||||||
|
let token = self.next_token_impl(ignore_newlines);
|
||||||
|
self.index = idx;
|
||||||
|
token
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn peek_multiple_tokens(&mut self, count: usize) -> Result<Vec<Token>> {
|
||||||
|
let mut tokens = Vec::new();
|
||||||
|
let idx = self.index;
|
||||||
|
for _ in 0..count {
|
||||||
|
tokens.push(self.next_token_impl(false)?);
|
||||||
|
}
|
||||||
|
self.index = idx;
|
||||||
|
Ok(tokens)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn next_token_impl(&mut self, ignore_newlines: bool) -> Result<Token> {
|
||||||
|
use Token::*;
|
||||||
|
use Error::*;
|
||||||
|
|
||||||
|
self.skip_whitespace(ignore_newlines);
|
||||||
|
let char = self.next();
|
||||||
|
let next = self.peek();
|
||||||
|
|
||||||
|
if char == '\0' {
|
||||||
|
return Ok(if ignore_newlines { Eof } else { SemiColon });
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(match char {
|
||||||
|
'(' => LeftParen,
|
||||||
|
')' => RightParen,
|
||||||
|
'[' => LeftBrack,
|
||||||
|
']' => RightBrack,
|
||||||
|
'{' => LeftBrace,
|
||||||
|
'}' => RightBrace,
|
||||||
|
';' => SemiColon,
|
||||||
|
'+' => Add,
|
||||||
|
',' => Comma,
|
||||||
|
'*' => {
|
||||||
|
match next {
|
||||||
|
'*' => {
|
||||||
|
self.next();
|
||||||
|
Power
|
||||||
|
}
|
||||||
|
_ => Multiply
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'/' => Divide,
|
||||||
|
'%' => Modulo,
|
||||||
|
'!' => {
|
||||||
|
match next {
|
||||||
|
'=' => {
|
||||||
|
self.next();
|
||||||
|
NotEqual
|
||||||
|
}
|
||||||
|
_ => Not
|
||||||
|
}
|
||||||
|
}
|
||||||
|
'&' => {
|
||||||
|
match next {
|
||||||
|
'&' => {
|
||||||
|
self.next();
|
||||||
|
And
|
||||||
|
}
|
||||||
|
_ => BitwiseAnd
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'|' => {
|
||||||
|
match next {
|
||||||
|
'|' => {
|
||||||
|
self.next();
|
||||||
|
Or
|
||||||
|
}
|
||||||
|
_ => BitwiseOr
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'-' => {
|
||||||
|
match next {
|
||||||
|
'>' => {
|
||||||
|
self.next();
|
||||||
|
ThinArrow
|
||||||
|
}
|
||||||
|
_ => Subtract
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'=' => {
|
||||||
|
match next {
|
||||||
|
'>' => {
|
||||||
|
self.next();
|
||||||
|
Arrow
|
||||||
|
}
|
||||||
|
'=' => {
|
||||||
|
self.next();
|
||||||
|
Equal
|
||||||
|
}
|
||||||
|
_ => Assign
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'>' => {
|
||||||
|
match next {
|
||||||
|
'>' => {
|
||||||
|
self.next();
|
||||||
|
BitwiseShiftRight
|
||||||
|
}
|
||||||
|
'=' => {
|
||||||
|
self.next();
|
||||||
|
GreaterEqual
|
||||||
|
}
|
||||||
|
_ => GreaterThan
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'<' => {
|
||||||
|
match next {
|
||||||
|
'<' => {
|
||||||
|
self.next();
|
||||||
|
BitwiseShiftLeft
|
||||||
|
}
|
||||||
|
'=' => {
|
||||||
|
self.next();
|
||||||
|
LessEqual
|
||||||
|
}
|
||||||
|
_ => LessThan
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'^' => BitwiseXor,
|
||||||
|
'\'' | '\"' => String(self.lex_string(char)?),
|
||||||
|
'r' => {
|
||||||
|
match next {
|
||||||
|
'\'' | '\"' => {
|
||||||
|
self.next();
|
||||||
|
Regex(regex::Regex::new(&self.lex_string(next)?)
|
||||||
|
.map(|e| e.into())
|
||||||
|
.map_err(|e| InvalidRegex(e.into()))?)
|
||||||
|
}
|
||||||
|
_ => {
|
||||||
|
self.lex_ident(char)?
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
'.' => {
|
||||||
|
if next.is_digit(10) {
|
||||||
|
self.lex_number(char)?
|
||||||
|
} else {
|
||||||
|
Access
|
||||||
|
}
|
||||||
|
},
|
||||||
|
_ => {
|
||||||
|
if char.is_digit(10) {
|
||||||
|
self.lex_number(char)?
|
||||||
|
} else {
|
||||||
|
self.lex_ident(char)?
|
||||||
|
}
|
||||||
|
},
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn peek_token(&mut self) -> Result<Token> {
|
||||||
|
self.peek_token_impl(true)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn next_token(&mut self) -> Result<Token> {
|
||||||
|
self.next_token_impl(true)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn peek_token_nl(&mut self) -> Result<Token> {
|
||||||
|
self.peek_token_impl(false)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn next_token_nl(&mut self) -> Result<Token> {
|
||||||
|
self.next_token_impl(false)
|
||||||
|
}
|
||||||
|
}
|
||||||
5
matrix/src/lib.rs
Normal file
5
matrix/src/lib.rs
Normal file
|
|
@ -0,0 +1,5 @@
|
||||||
|
|
||||||
|
mod ast;
|
||||||
|
mod lex;
|
||||||
|
|
||||||
|
pub mod parse;
|
||||||
451
matrix/src/parse.rs
Normal file
451
matrix/src/parse.rs
Normal file
|
|
@ -0,0 +1,451 @@
|
||||||
|
use std::{fmt::Display, rc::Rc};
|
||||||
|
use num_complex::Complex64;
|
||||||
|
|
||||||
|
use crate::{lex::{Lexer, self, Token}, ast::{Expr, Value, BinaryOp, UnaryOp}};
|
||||||
|
|
||||||
|
pub struct Parser {
|
||||||
|
lexer: Lexer
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub enum Error {
|
||||||
|
LexerError(crate::lex::Error),
|
||||||
|
UnexpectedToken(Token),
|
||||||
|
ExpectedToken(Token),
|
||||||
|
ExpectedTokenName(&'static str),
|
||||||
|
}
|
||||||
|
|
||||||
|
pub type Result<T> = std::result::Result<T, Error>;
|
||||||
|
|
||||||
|
impl Display for Error {
|
||||||
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||||
|
use Error::*;
|
||||||
|
match self {
|
||||||
|
LexerError(err) => write!(f, "{err}"),
|
||||||
|
UnexpectedToken(tok) => write!(f, "Unexpected token: '{tok:?}'"),
|
||||||
|
ExpectedToken(tok) => write!(f, "Expected token: '{tok:?}'"),
|
||||||
|
ExpectedTokenName(name) => write!(f, "Expected {name} token"),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<lex::Error> for Error {
|
||||||
|
fn from(value: lex::Error) -> Self {
|
||||||
|
Self::LexerError(value)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl std::error::Error for Error {}
|
||||||
|
|
||||||
|
macro_rules! math_expr_parser {
|
||||||
|
($parser:ident, $pattern:pat, $fn:ident) => {{
|
||||||
|
let mut math_expr = $parser.$fn()?;
|
||||||
|
loop {
|
||||||
|
let tok = $parser.lexer.peek_token_nl()?;
|
||||||
|
match tok {
|
||||||
|
$pattern => {
|
||||||
|
$parser.lexer.next_token_nl()?;
|
||||||
|
let temp = $parser.$fn()?;
|
||||||
|
math_expr = Expr::BinaryOp(Box::new(math_expr), Box::new(temp), BinaryOp::try_from(tok).unwrap())
|
||||||
|
}
|
||||||
|
_ => break
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(math_expr)
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
macro_rules! math_expr_parser_reverse {
|
||||||
|
($parser:ident, $pattern:pat, $fn:ident, $cur:ident) => {{
|
||||||
|
let math_expr = $parser.$fn()?;
|
||||||
|
let tok = $parser.lexer.peek_token_nl()?;
|
||||||
|
Ok(match tok {
|
||||||
|
$pattern => {
|
||||||
|
$parser.lexer.next_token_nl()?;
|
||||||
|
Expr::BinaryOp(Box::new(math_expr), Box::new($parser.$cur()?), BinaryOp::try_from(tok).unwrap())
|
||||||
|
}
|
||||||
|
_ => math_expr
|
||||||
|
})
|
||||||
|
}};
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Parser {
|
||||||
|
|
||||||
|
fn force_token(&mut self, tok: Token) -> Result<Token> {
|
||||||
|
let next = self.lexer.next_token()?;
|
||||||
|
if next != tok {
|
||||||
|
Err(Error::ExpectedToken(tok))
|
||||||
|
} else {
|
||||||
|
Ok(tok)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn force_token_nl(&mut self, tok: Token) -> Result<Token> {
|
||||||
|
let next = self.lexer.next_token_nl()?;
|
||||||
|
if next != tok {
|
||||||
|
Err(Error::ExpectedToken(tok))
|
||||||
|
} else {
|
||||||
|
Ok(tok)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_list(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::LeftBrack)?;
|
||||||
|
let mut list = Vec::new();
|
||||||
|
if self.lexer.peek_token()? == Token::RightBrack {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
return Ok(Expr::List(list))
|
||||||
|
}
|
||||||
|
loop {
|
||||||
|
let expr = self.parse_math_expr()?;
|
||||||
|
list.push(expr);
|
||||||
|
let next = self.lexer.next_token()?;
|
||||||
|
match next {
|
||||||
|
Token::Comma => continue,
|
||||||
|
Token::RightBrack => break,
|
||||||
|
_ => return Err(Error::UnexpectedToken(next))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(Expr::List(list))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_table_key(&mut self) -> Result<Expr> {
|
||||||
|
let tok = self.lexer.next_token()?;
|
||||||
|
Ok(match tok {
|
||||||
|
Token::LeftBrack => {
|
||||||
|
let expr = self.parse_math_expr()?;
|
||||||
|
self.force_token(Token::RightBrack)?;
|
||||||
|
expr
|
||||||
|
},
|
||||||
|
Token::Ident(ident) => Expr::Ident(ident),
|
||||||
|
Token::String(string) => Expr::Literal(Value::String(string)),
|
||||||
|
_ => return Err(Error::UnexpectedToken(tok))
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_table(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::LeftBrace)?;
|
||||||
|
let mut table = Vec::new();
|
||||||
|
if self.lexer.peek_token()? == Token::RightBrace {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
return Ok(Expr::Table(table))
|
||||||
|
}
|
||||||
|
loop {
|
||||||
|
let key = self.parse_table_key()?;
|
||||||
|
self.force_token(Token::Assign)?;
|
||||||
|
let value = self.parse_math_expr()?;
|
||||||
|
table.push((key, value));
|
||||||
|
let next = self.lexer.next_token()?;
|
||||||
|
match next {
|
||||||
|
Token::Comma => continue,
|
||||||
|
Token::RightBrace => break,
|
||||||
|
_ => return Err(Error::UnexpectedToken(next))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(Expr::Table(table))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_paren(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::LeftParen)?;
|
||||||
|
let math_expr = self.parse_math_expr()?;
|
||||||
|
self.force_token(Token::RightParen)?;
|
||||||
|
Ok(math_expr)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_term(&mut self) -> Result<Expr> {
|
||||||
|
use Token::*;
|
||||||
|
let tok = self.lexer.peek_token()?;
|
||||||
|
match tok {
|
||||||
|
LeftBrack => return self.parse_list(),
|
||||||
|
LeftBrace => return self.parse_table(),
|
||||||
|
LeftParen => return self.parse_paren(),
|
||||||
|
_ => ()
|
||||||
|
}
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
Ok(match tok {
|
||||||
|
Int(i) => Expr::Literal(Value::Int(i)),
|
||||||
|
Float(f) => Expr::Literal(Value::Float(f)),
|
||||||
|
Complex(c) => Expr::Literal(Value::Complex(Complex64::new(0.0, c))),
|
||||||
|
Regex(r) => Expr::Literal(Value::Regex(Rc::new(r.into()))),
|
||||||
|
String(s) => Expr::Literal(Value::String(s)),
|
||||||
|
True => Expr::Literal(Value::Bool(true)),
|
||||||
|
False => Expr::Literal(Value::Bool(false)),
|
||||||
|
Ident(ident) => Expr::Ident(ident),
|
||||||
|
_ => return Err(Error::UnexpectedToken(tok)),
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_unary(&mut self) -> Result<Expr> {
|
||||||
|
let tok = self.lexer.peek_token_nl()?;
|
||||||
|
Ok(match tok {
|
||||||
|
Token::Not => {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
Expr::UnaryOp(Box::new(self.parse_math_expr_unary()?), UnaryOp::Not)
|
||||||
|
}
|
||||||
|
Token::Subtract => {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
Expr::UnaryOp(Box::new(self.parse_math_expr_unary()?), UnaryOp::Negate)
|
||||||
|
}
|
||||||
|
_ => self.parse_term()?
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_pow(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser_reverse!(
|
||||||
|
self,
|
||||||
|
Token::Power,
|
||||||
|
parse_math_expr_unary,
|
||||||
|
parse_math_expr_pow
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_mult(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::Multiply | Token::Divide | Token::Modulo, parse_math_expr_pow)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_add(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::Add | Token::Subtract, parse_math_expr_mult)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_shift(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(
|
||||||
|
self,
|
||||||
|
Token::BitwiseShiftLeft | Token::BitwiseShiftRight,
|
||||||
|
parse_math_expr_add
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_bit_and(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::BitwiseAnd, parse_math_expr_shift)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_bit_or(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::BitwiseOr, parse_math_expr_bit_and)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_compare(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(
|
||||||
|
self,
|
||||||
|
Token::Equal | Token::NotEqual |
|
||||||
|
Token::LessThan | Token::GreaterThan |
|
||||||
|
Token::LessEqual | Token::GreaterEqual,
|
||||||
|
parse_math_expr_bit_or
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_and(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::Add, parse_math_expr_compare)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr_or(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser!(self, Token::Or, parse_math_expr_and)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_math_expr(&mut self) -> Result<Expr> {
|
||||||
|
math_expr_parser_reverse!(
|
||||||
|
self,
|
||||||
|
Token::Assign,
|
||||||
|
parse_math_expr_or,
|
||||||
|
parse_math_expr
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_params(&mut self) -> Result<Vec<Rc<str>>> {
|
||||||
|
use Token::*;
|
||||||
|
let tok = self.lexer.next_token()?;
|
||||||
|
match tok {
|
||||||
|
Ident(ident) => return Ok(vec![ident]),
|
||||||
|
LeftParen => (),
|
||||||
|
_ => return Err(Error::UnexpectedToken(tok)),
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut params = Vec::new();
|
||||||
|
|
||||||
|
if self.lexer.peek_token()? == Token::RightParen {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
return Ok(params);
|
||||||
|
}
|
||||||
|
|
||||||
|
loop {
|
||||||
|
let ident = self.parse_ident()?;
|
||||||
|
params.push(ident);
|
||||||
|
let next = self.lexer.next_token()?;
|
||||||
|
match next {
|
||||||
|
Comma => continue,
|
||||||
|
RightParen => break,
|
||||||
|
_ => return Err(Error::UnexpectedToken(next)),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(params)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_ident(&mut self) -> Result<Rc<str>> {
|
||||||
|
if let Token::Ident(ident) = self.lexer.next_token()? {
|
||||||
|
Ok(ident)
|
||||||
|
} else {
|
||||||
|
Err(Error::ExpectedTokenName("Ident"))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_ident_nl(&mut self) -> Result<Rc<str>> {
|
||||||
|
if let Token::Ident(ident) = self.lexer.next_token_nl()? {
|
||||||
|
Ok(ident)
|
||||||
|
} else {
|
||||||
|
Err(Error::ExpectedTokenName("Ident"))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_function(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::Function)?;
|
||||||
|
let ident = self.parse_ident()?;
|
||||||
|
let params = match self.lexer.peek_token()? {
|
||||||
|
Token::LeftBrace => vec![],
|
||||||
|
_ => self.parse_params()?,
|
||||||
|
};
|
||||||
|
let block = self.parse_block()?;
|
||||||
|
Ok(Expr::Function(ident, params, block))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_do_while(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::Do)?;
|
||||||
|
let block = self.parse_block()?;
|
||||||
|
self.force_token(Token::While)?;
|
||||||
|
let math_expr = self.parse_math_expr()?;
|
||||||
|
Ok(Expr::DoWhile(Box::new(math_expr), block))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_while(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::While)?;
|
||||||
|
let math_expr = self.parse_math_expr()?;
|
||||||
|
let block = self.parse_block()?;
|
||||||
|
Ok(Expr::While(Box::new(math_expr), block))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_loop(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::Loop)?;
|
||||||
|
let block = self.parse_block()?;
|
||||||
|
Ok(Expr::Loop(block))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_if(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::If)?;
|
||||||
|
let math_expr = Box::new(self.parse_expr()?);
|
||||||
|
let expr = Box::new(self.parse_expr()?);
|
||||||
|
|
||||||
|
if self.lexer.peek_token()? != Token::Else {
|
||||||
|
return Ok(Expr::If(math_expr, expr, None))
|
||||||
|
}
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
|
||||||
|
if self.lexer.peek_token()? == Token::If {
|
||||||
|
Ok(Expr::If(math_expr, expr, Some(Box::new(self.parse_if()?))))
|
||||||
|
} else {
|
||||||
|
Ok(Expr::If(math_expr, expr, Some(Box::new(self.parse_expr()?))))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_let(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::Let)?;
|
||||||
|
let ident = self.parse_ident_nl()?;
|
||||||
|
if self.lexer.peek_token_nl()? == Token::Assign {
|
||||||
|
self.force_token_nl(Token::Assign)?;
|
||||||
|
Ok(Expr::Let(ident, Box::new(self.parse_math_expr()?)))
|
||||||
|
} else {
|
||||||
|
Ok(Expr::Let(ident, Box::new(Expr::Literal(Value::Nil))))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_return(&mut self) -> Result<Expr> {
|
||||||
|
self.force_token(Token::Return)?;
|
||||||
|
Ok(Expr::Return(Box::new(self.parse_math_expr()?)))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_expr(&mut self) -> Result<Expr> {
|
||||||
|
use Token::*;
|
||||||
|
match self.lexer.peek_token()? {
|
||||||
|
Do => self.parse_do_while(),
|
||||||
|
While => self.parse_while(),
|
||||||
|
Let => self.parse_let(),
|
||||||
|
LeftBrace => {
|
||||||
|
let idx = self.lexer.index;
|
||||||
|
if let Ok(table) = self.parse_math_expr() {
|
||||||
|
Ok(table)
|
||||||
|
} else {
|
||||||
|
self.lexer.index = idx;
|
||||||
|
Ok(Expr::Block(self.parse_block()?))
|
||||||
|
}
|
||||||
|
},
|
||||||
|
Return => self.parse_return(),
|
||||||
|
If => self.parse_if(),
|
||||||
|
Loop => self.parse_loop(),
|
||||||
|
Break => {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
Ok(Expr::Break)
|
||||||
|
},
|
||||||
|
Continue => {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
Ok(Expr::Continue)
|
||||||
|
},
|
||||||
|
_ => {
|
||||||
|
let math_expr = self.parse_math_expr()?;
|
||||||
|
Ok(math_expr)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_block(&mut self) -> Result<Vec<Expr>> {
|
||||||
|
let mut block = Vec::new();
|
||||||
|
self.force_token(Token::LeftBrace)?;
|
||||||
|
loop {
|
||||||
|
let expr = match self.lexer.peek_token()? {
|
||||||
|
Token::RightBrace => break,
|
||||||
|
Token::SemiColon => {
|
||||||
|
self.lexer.next_token()?;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
_ => self.parse_expr()?
|
||||||
|
};
|
||||||
|
block.push(expr);
|
||||||
|
let next = self.lexer.next_token()?;
|
||||||
|
match next {
|
||||||
|
Token::SemiColon => continue,
|
||||||
|
Token::RightBrace => break,
|
||||||
|
_ => return Err(Error::UnexpectedToken(next))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
self.force_token(Token::RightBrace)?;
|
||||||
|
Ok(block)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn parse_root_expr(&mut self) -> Result<Expr> {
|
||||||
|
if self.lexer.peek_token()? == Token::Function {
|
||||||
|
self.parse_function()
|
||||||
|
} else {
|
||||||
|
self.parse_expr()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn parse<T: Into<Lexer>>(into: T) -> Result<Expr> {
|
||||||
|
let mut parser = Self { lexer: into.into() };
|
||||||
|
let mut block = Vec::new();
|
||||||
|
loop {
|
||||||
|
let expr = match parser.lexer.peek_token()? {
|
||||||
|
Token::Eof => break,
|
||||||
|
Token::SemiColon => {
|
||||||
|
parser.lexer.next_token()?;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
_ => parser.parse_root_expr()?
|
||||||
|
};
|
||||||
|
block.push(expr);
|
||||||
|
let next = parser.lexer.next_token()?;
|
||||||
|
match next {
|
||||||
|
Token::SemiColon => continue,
|
||||||
|
Token::Eof => break,
|
||||||
|
_ => return Err(Error::UnexpectedToken(next))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(Expr::Block(block))
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue