lang: basic parser
This commit is contained in:
parent
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commit
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SSH key fingerprint:
SHA256:hXb3t1vINBFCiDCmhRABHX5ocdbLiKyCdKI4HK2Rbbc
11 changed files with 362 additions and 33 deletions
153
Cargo.lock
generated
153
Cargo.lock
generated
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@ -8,6 +8,33 @@ version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
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[[package]]
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name = "ahash"
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version = "0.8.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
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dependencies = [
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"cfg-if",
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"once_cell",
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"version_check",
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"zerocopy",
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]
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[[package]]
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name = "aho-corasick"
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version = "1.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
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dependencies = [
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"memchr",
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]
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[[package]]
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name = "allocator-api2"
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version = "0.2.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
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[[package]]
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name = "anstream"
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version = "0.6.5"
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@ -133,12 +160,31 @@ version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
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[[package]]
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name = "cc"
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version = "1.0.90"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8cd6604a82acf3039f1144f54b8eb34e91ffba622051189e71b781822d5ee1f5"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "chumsky"
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version = "1.0.0-alpha.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b9c28d4e5dd9a9262a38b231153591da6ce1471b818233f4727985d3dd0ed93c"
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dependencies = [
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"hashbrown",
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"regex-automata",
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"serde",
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"stacker",
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"unicode-ident",
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]
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[[package]]
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name = "clap"
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version = "4.4.12"
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@ -389,6 +435,10 @@ name = "hashbrown"
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version = "0.14.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
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dependencies = [
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"ahash",
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"allocator-api2",
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]
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[[package]]
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name = "heck"
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@ -417,9 +467,9 @@ dependencies = [
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[[package]]
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name = "indexmap"
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version = "2.2.5"
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version = "2.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7b0b929d511467233429c45a44ac1dcaa21ba0f5ba11e4879e6ed28ddb4f9df4"
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checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
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dependencies = [
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"equivalent",
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"hashbrown",
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@ -453,7 +503,11 @@ dependencies = [
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name = "lang"
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version = "0.1.0"
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dependencies = [
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"chumsky",
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"clap",
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"indexmap",
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"logos",
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"petgraph",
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]
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[[package]]
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@ -515,7 +569,7 @@ dependencies = [
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"lazy_static",
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"proc-macro2",
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"quote",
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"regex-syntax",
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"regex-syntax 0.8.2",
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"syn",
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]
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@ -583,6 +637,12 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "once_cell"
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version = "1.19.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
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[[package]]
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name = "option-ext"
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version = "0.2.0"
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@ -675,6 +735,15 @@ dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "psm"
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version = "0.1.21"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5787f7cda34e3033a72192c018bc5883100330f362ef279a8cbccfce8bb4e874"
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dependencies = [
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"cc",
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]
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[[package]]
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name = "qoi"
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version = "0.4.1"
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@ -758,6 +827,23 @@ dependencies = [
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"thiserror",
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]
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[[package]]
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name = "regex-automata"
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version = "0.3.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "59b23e92ee4318893fa3fe3e6fb365258efbfe6ac6ab30f090cdcbb7aa37efa9"
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dependencies = [
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"aho-corasick",
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"memchr",
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"regex-syntax 0.7.5",
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]
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[[package]]
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name = "regex-syntax"
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version = "0.7.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
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[[package]]
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name = "regex-syntax"
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version = "0.8.2"
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@ -846,6 +932,19 @@ dependencies = [
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"lock_api",
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]
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[[package]]
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name = "stacker"
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version = "0.1.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c886bd4480155fd3ef527d45e9ac8dd7118a898a46530b7b94c3e21866259fce"
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dependencies = [
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"cc",
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"cfg-if",
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"libc",
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"psm",
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"winapi",
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]
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[[package]]
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name = "strsim"
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version = "0.10.0"
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@ -942,6 +1041,12 @@ version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
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[[package]]
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name = "version_check"
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version = "0.9.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
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[[package]]
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name = "wasi"
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version = "0.11.0+wasi-snapshot-preview1"
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@ -954,6 +1059,28 @@ version = "0.1.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
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[[package]]
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name = "winapi"
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version = "0.3.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
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dependencies = [
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"winapi-i686-pc-windows-gnu",
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"winapi-x86_64-pc-windows-gnu",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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[[package]]
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name = "windows-sys"
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version = "0.48.0"
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@ -1092,6 +1219,26 @@ version = "0.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
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[[package]]
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name = "zerocopy"
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version = "0.7.32"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "74d4d3961e53fa4c9a25a8637fc2bfaf2595b3d3ae34875568a5cf64787716be"
|
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dependencies = [
|
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"zerocopy-derive",
|
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]
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[[package]]
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name = "zerocopy-derive"
|
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version = "0.7.32"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
|
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dependencies = [
|
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"proc-macro2",
|
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"quote",
|
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"syn",
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]
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[[package]]
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name = "zune-inflate"
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version = "0.2.54"
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@ -11,6 +11,7 @@ resolver = "2"
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[workspace.dependencies]
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clap = { version = "4", features = ["derive"] }
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serde = { version = "1.0", features = ["derive"] }
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petgraph = "0.6.4"
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# to enable all the lints below, this must be present in a workspace member's Cargo.toml:
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# [lints]
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@ -7,6 +7,10 @@ edition = "2021"
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[dependencies]
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logos = "0.14"
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chumsky = "1.0.0-alpha.6"
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petgraph = { workspace = true}
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indexmap = "2.2.6"
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clap = { version = "4", features = ["derive"] }
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[lints]
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workspace = true
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@ -1 +1,5 @@
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pub mod parser;
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pub mod tokens;
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pub mod err_reporting {
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pub struct GlobalReporter {}
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}
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17
crates/lang/src/main.rs
Normal file
17
crates/lang/src/main.rs
Normal file
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@ -0,0 +1,17 @@
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use std::{fs, path::PathBuf};
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use clap::Parser;
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use lang::parser::parse;
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#[derive(Parser)]
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struct Args {
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file: PathBuf,
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}
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fn main() {
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let args = Args::parse();
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let f = fs::read_to_string(args.file).expect("failed to read file");
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println!("file: {f}\n");
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println!("parsed: {:?}", parse(&f))
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}
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134
crates/lang/src/parser.rs
Normal file
134
crates/lang/src/parser.rs
Normal file
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@ -0,0 +1,134 @@
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use std::ops::Range;
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use chumsky::{
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error::Rich,
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extra,
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input::{Stream, ValueInput},
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prelude::*,
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primitive::just,
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recursive::recursive,
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select,
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span::SimpleSpan,
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IterParser, Parser,
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};
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use indexmap::IndexMap;
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use logos::{Logos, Source};
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use crate::tokens::Token;
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pub mod ast;
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use self::ast::{Expr, File};
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type Span = SimpleSpan;
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type Spanned<T> = (T, Span);
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pub fn parse<'src>(src: &'src str) -> ParseResult<File<'_>, Rich<'_, Token<'_>>> {
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let toks: Vec<_> = Token::lexer(src)
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.spanned()
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.into_iter()
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.map(|(t, s)| (t.expect("TODO: add lexer error(s)"), Span::from(s)))
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.collect();
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let tok_stream = Stream::from_iter(toks).spanned((src.len()..src.len()).into());
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expr_parser().parse(tok_stream)
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}
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fn expr_parser<'tokens, 'src: 'tokens, I: ValueInput<'tokens, Token = Token<'src>, Span = Span>>(
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) -> impl Parser<'tokens, I, File<'src>, extra::Err<Rich<'tokens, Token<'src>, Span>>> {
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let word = select! { Token::Word(word) => word };
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let expr = recursive(|expr| {
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let var = select! {
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Token::VarIdent(name) => (Expr::Var as fn(_) -> _, name),
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Token::InputIdent(name) => (Expr::InputVar as fn(_) -> _, name)
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}
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.map_with(|(item_type, name), extra| item_type((name, extra.span())));
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|
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let attrset = word
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.map_with(|n, e| (n, e.span()))
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.then_ignore(just(Token::Colon))
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.then(expr)
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.separated_by(just(Token::Comma))
|
||||
.collect::<Vec<_>>()
|
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.map(IndexMap::from_iter)
|
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.delimited_by(just(Token::BracketOpen), just(Token::BracketClose))
|
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.map_with(|v, e| (v, e.span()));
|
||||
|
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let node = word
|
||||
.map_with(|v, e| (v, e.span()))
|
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.then(attrset.clone().or_not())
|
||||
.map(|(name, params)| Expr::Node(name, params))
|
||||
.or(var)
|
||||
.or(attrset.map(Expr::AttrSet));
|
||||
|
||||
let pipeline = node
|
||||
.clone()
|
||||
.then(choice((
|
||||
just(Token::Pipe).to(Expr::SimplePipe as fn(_, _) -> _),
|
||||
just(Token::MappingPipe).to(Expr::MappingPipe as fn(_, _) -> _),
|
||||
just(Token::NullPipe).to(Expr::NullPipe as fn(_, _) -> _),
|
||||
)))
|
||||
.repeated()
|
||||
.foldr(node, |(curr, pipe), next| {
|
||||
pipe(Box::new(curr), Box::new(next))
|
||||
});
|
||||
|
||||
pipeline
|
||||
});
|
||||
|
||||
let decl = just(Token::Def).ignore_then(
|
||||
word.map_with(|n, e| (n, e.span()))
|
||||
.then_ignore(just(Token::Equals))
|
||||
.then(expr.clone().map_with(|expr, extra| (expr, extra.span())))
|
||||
.then_ignore(just(Token::SemiColon)),
|
||||
);
|
||||
|
||||
expr.map_with(|expr, extra| File {
|
||||
decls: IndexMap::from_iter([(("main", (0..0).into()), (expr, extra.span()))]),
|
||||
})
|
||||
.or(decl.repeated().collect::<Vec<_>>().map(|decls| File {
|
||||
decls: IndexMap::from_iter(decls),
|
||||
}))
|
||||
}
|
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|
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#[cfg(test)]
|
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mod tests {
|
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use crate::parser::ast::{Expr, File};
|
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use crate::parser::parse;
|
||||
use crate::tokens::Token;
|
||||
use chumsky::input::Stream;
|
||||
use chumsky::prelude::*;
|
||||
use indexmap::IndexMap;
|
||||
use logos::Logos;
|
||||
|
||||
#[test]
|
||||
fn test_parse_node_with_params() {
|
||||
const INPUT: &str = "meow [ hello: $foo, world: @bar]";
|
||||
assert_eq!(
|
||||
parse(INPUT).unwrap(),
|
||||
File {
|
||||
decls: IndexMap::from_iter([(
|
||||
("main", (0..0).into()),
|
||||
(
|
||||
Expr::Node(
|
||||
("meow", (0..4).into()),
|
||||
Some((
|
||||
IndexMap::from_iter([
|
||||
(
|
||||
("hello", (7..12).into()),
|
||||
Expr::Var(("foo", (14..18).into()))
|
||||
),
|
||||
(
|
||||
("world", (20..25).into()),
|
||||
Expr::InputVar(("bar", (27..31).into()))
|
||||
)
|
||||
]),
|
||||
(5..32).into()
|
||||
))
|
||||
),
|
||||
(0..0).into()
|
||||
)
|
||||
)])
|
||||
}
|
||||
);
|
||||
}
|
||||
}
|
||||
36
crates/lang/src/parser/ast.rs
Normal file
36
crates/lang/src/parser/ast.rs
Normal file
|
|
@ -0,0 +1,36 @@
|
|||
use std::collections::{BTreeMap, HashMap};
|
||||
|
||||
use indexmap::IndexMap;
|
||||
|
||||
use super::Spanned;
|
||||
|
||||
#[derive(Debug, PartialEq, Eq)]
|
||||
pub struct File<'src> {
|
||||
pub decls: IndexMap<Spanned<&'src str>, Spanned<Expr<'src>>>,
|
||||
}
|
||||
|
||||
#[derive(Debug, PartialEq, Eq)]
|
||||
pub enum Expr<'src> {
|
||||
Node(
|
||||
Spanned<&'src str>,
|
||||
Option<Spanned<IndexMap<Spanned<&'src str>, Expr<'src>>>>,
|
||||
),
|
||||
SimplePipe(Box<Expr<'src>>, Box<Expr<'src>>),
|
||||
NamingPipe(
|
||||
Box<Expr<'src>>,
|
||||
(Vec<Spanned<&'src str>>, Vec<Spanned<&'src str>>),
|
||||
Box<Expr<'src>>,
|
||||
),
|
||||
MappingPipe(Box<Expr<'src>>, Box<Expr<'src>>),
|
||||
NullPipe(Box<Expr<'src>>, Box<Expr<'src>>),
|
||||
MultiPipe(IndexMap<Spanned<&'src str>, Expr<'src>>),
|
||||
LetIn(
|
||||
IndexMap<Spanned<&'src str>, Box<Expr<'src>>>,
|
||||
Box<Expr<'src>>,
|
||||
),
|
||||
// $
|
||||
Var(Spanned<&'src str>),
|
||||
// @
|
||||
InputVar(Spanned<&'src str>),
|
||||
AttrSet(Spanned<IndexMap<Spanned<&'src str>, Expr<'src>>>),
|
||||
}
|
||||
|
|
@ -1,8 +1,15 @@
|
|||
use logos::Logos;
|
||||
|
||||
#[derive(Logos, Debug, PartialEq, Eq)]
|
||||
#[derive(Logos, Debug, PartialEq, Eq, Clone)]
|
||||
#[logos(skip r"[ \t\n\f]+")]
|
||||
pub enum Token<'a> {
|
||||
// hack!
|
||||
// this isn't actually supposed to be in the language.
|
||||
// i just can't figure out how to automatically choose between a top level declaration
|
||||
// or a top level expression
|
||||
// so a declaration needs the keyword def until i can figure this out
|
||||
#[token("def")]
|
||||
Def,
|
||||
#[regex("[a-zA-Z0-9_\\-]+", |lex| lex.slice())]
|
||||
Word(&'a str),
|
||||
#[regex("\\$[a-zA-Z0-9_\\-]+", |lex| &lex.slice()[1..])]
|
||||
|
|
@ -27,6 +34,8 @@ pub enum Token<'a> {
|
|||
Equals,
|
||||
#[token(":")]
|
||||
Colon,
|
||||
#[token(";")]
|
||||
SemiColon,
|
||||
#[token("[")]
|
||||
BracketOpen,
|
||||
#[token("]")]
|
||||
|
|
|
|||
|
|
@ -8,7 +8,7 @@ edition = "2021"
|
|||
[dependencies]
|
||||
csscolorparser = "0.6.2"
|
||||
indexmap = "2.2.5"
|
||||
petgraph = "0.6.4"
|
||||
petgraph = { workspace = true }
|
||||
quick-xml = { version = "0.31.0", features = ["serialize"] }
|
||||
|
||||
[lints]
|
||||
|
|
|
|||
|
|
@ -1,35 +1,8 @@
|
|||
use std::hint::black_box;
|
||||
|
||||
use svg_filters::{
|
||||
codegen::SvgDocument,
|
||||
types::{
|
||||
graph::edge::Edge,
|
||||
nodes::{
|
||||
primitives::{
|
||||
blend::BlendMode,
|
||||
color_matrix::ColorMatrixType,
|
||||
turbulence::{NoiseType, StitchTiles, Turbulence},
|
||||
FePrimitive,
|
||||
},
|
||||
standard_input::StandardInput,
|
||||
},
|
||||
},
|
||||
Node,
|
||||
};
|
||||
use svg_filters::codegen::SvgDocument;
|
||||
|
||||
fn main() {
|
||||
let mut doc = SvgDocument::new();
|
||||
|
||||
let noise = doc.create_filter("noise");
|
||||
|
||||
noise.add_node(Node::simple(FePrimitive::Turbulence(Turbulence {
|
||||
base_frequency: (0.2, 0.2),
|
||||
num_octaves: 1,
|
||||
seed: 2,
|
||||
stitch_tiles: StitchTiles::NoStitch,
|
||||
noise_type: NoiseType::FractalNoise,
|
||||
})));
|
||||
|
||||
eprintln!("{}", doc.generate_svg_pretty());
|
||||
println!("{}", doc.generate_svg());
|
||||
}
|
||||
|
|
|
|||
4
testfiles/test.owo
Normal file
4
testfiles/test.owo
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
def main = meow | test;
|
||||
def test = meow [ hello: $foo, world: @bar];
|
||||
|
||||
def uwu = owo;
|
||||
Loading…
Reference in a new issue