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packages/layer_parser/Makefile

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+../led_effect/src/layer_parser_lark.py: src/layer_parser.lark
+	poetry run python -m lark.tools.standalone -s line -o $@ $<

packages/layer_parser/pyproject.toml

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+[tool.poetry]
+package-mode = false
+name = "layer_parser"
+version = "0.1.0"
+description = ""
+authors = ["Julian Schill <[email protected]>", "reemo3dp <[email protected]>"]
+license = "GPL3"
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = ">=3.8,<3.12"
+
+[tool.poetry.group.dev.dependencies]
+lark = "^1.1.9"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

packages/layer_parser/src/layer_parser.lark

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+line: legacy_line | parameterized_line
+
+legacy_line: LAYER_NAME RATE CUTOFF BLEND palette
+LAYER_NAME: WORD
+RATE: NUMBER
+CUTOFF: NUMBER
+BLEND: WORD
+
+parameterized_line: LAYER_NAME "(" parameters ")" BLEND palette
+parameters: (parameter ("," parameter)*)?
+parameter: CNAME "=" (NUMBER | string)
+NUMBER: (FLOAT | INT)
+
+palette: palette_entry ("," palette_entry)*
+palette_entry: "(" (NUMBER) "," (NUMBER) "," (NUMBER) ["," (NUMBER)] ")"
+?string: CNAME | ESCAPED_STRING
+
+%import common.CNAME  
+%import common.WORD
+%import common.FLOAT
+%import common.INT
+%import common.WS
+%import common.ESCAPED_STRING
+
+%ignore WS

packages/led_effect/pyproject.toml

@@ -1,5 +1,5 @@
 [tool.poetry]
-name = "led-effect"
+name = "led_effect"
 version = "0.1.0"
 authors = ["Julian Schill <[email protected]>"]
 description = ""

packages/led_effect/src/layer_parser.py

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+from . import layer_parser_lark
+
+
+
+class TermTransformer(layer_parser_lark.Transformer):
+    NUMBER = float
+    RATE = float
+    CUTOFF = float
+    BLEND = str
+    LAYER_NAME = str
+    WORD = str
+    CNAME = str
+
+    @layer_parser_lark.v_args(inline=True)
+    def ESCAPED_STRING(self, s):
+        return s[1:-1].replace('\\"', '"')
+
+
+layer_line_parser = layer_parser_lark.Lark_StandAlone()
+
+
+def parse(line):
+    tree = TermTransformer().transform(layer_line_parser.parse(line))
+
+    if tree.children[0].data == "legacy_line":
+        effect, rate, cutoff, blend, palette = tree.children[0].children
+        palette = [tuple([color for color in entry.children if color != None])
+                   for entry in palette.children]
+        return {
+            "effect": effect, "parameters": {"effectRate": rate, "effectCutoff": cutoff},
+            "blend": blend, "palette": palette
+        }
+    elif tree.children[0].data == "parameterized_line":
+        effect, parameters, blend, palette = tree.children[0].children
+
+        params = {k: v for k, v in [
+            (param.children[0], param.children[1]) for param in parameters.children]}
+
+        palette = [tuple([color for color in entry.children if color != None])
+                   for entry in palette.children]
+        return {
+            "effect": effect, "blend": blend, "palette": palette, "parameters": params
+        }
+    return None