thinking about dependnecies

Cargo.lock

@@ -106,7 +106,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.41",
+ "syn",
 ]
 
 [[package]]
@@ -133,28 +133,6 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
-[[package]]
-name = "memchr"
-version = "2.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
-
-[[package]]
-name = "minimal-lexical"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
-
-[[package]]
-name = "nom"
-version = "7.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
-dependencies = [
- "memchr",
- "minimal-lexical",
-]
-
 [[package]]
 name = "num-traits"
 version = "0.2.17"
@@ -171,8 +149,6 @@ dependencies = [
  "clap",
  "clap-num",
  "clap-verbosity-flag",
- "nom",
- "racc",
 ]
 
 [[package]]
@@ -193,42 +169,12 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "racc"
-version = "0.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a93af6fd1d634b74440a3f0602fcbcea7db7950960a99c9c9a9f05b7da93594"
-dependencies = [
- "log",
- "proc-macro2",
- "quote",
- "ramp_table",
- "syn 1.0.109",
-]
-
-[[package]]
-name = "ramp_table"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bff95c0969b90c5d05263ee9543720e6361c59a686e6dfd149b4a1ddcc28217"
-
 [[package]]
 name = "strsim"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.41"

README.md

@@ -5,3 +5,16 @@ Object oriented pseudo syntax is another esoteric programming language.
 ## oopsc
 
 The oops compiler compiles oops source code to a native executable.
+
+### Approaches
+
+- [`nom`](https://docs.rs/nom): parser combinator, meaning we don't write grammar and generate code from
+  it but we write many small functions that magically work together. Sounds cool
+  but coming from a university course with antlr and ply I don't get it.
+- [`pest`](https://pest.rs/): weird grammar syntax but seems like a very
+  professional choice.
+- [`lalrpop`](https://github.com/lalrpop/lalrpop): seems most similar to ply and
+  antlr, but feels confusing from the first glance.
+
+`pest` seems the most mature and usable for a rust project, there is even a
+list of pretty popular stuff written with it [here](https://github.com/pest-parser/pest#projects-using-pest).

oopsc/Cargo.toml

@@ -19,5 +19,3 @@ default = []
 clap = "4.4.11"
 clap-num = "1.0.2"
 clap-verbosity-flag = "2.1.1"
-nom = "7.1.3"
-racc = "0.0.4"