feat: switch to JSON format

src/iguana/algorithms/BankDefs.h

@@ -2,13 +2,6 @@
 #include <string>
 
 
-// FIXME
-// This really ought to be a YAML file, however:
-// - could be handled by `ConfigFileReader`, but need to prevent users from accidentally overriding this
-//   file with `IGUANA_CONFIG_PATH`
-// - we could generate this header file, given a YAML file, with Python (not Ruby, since Meson already needs Python, but Ruby
-//   is only needed for Chameleon)
-
 namespace iguana {
 
   struct BankColDef {

src/iguana/bankdefs/generate.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+
+import sys
+import json
+
+if(len(sys.argv) < 3):
+    print(f'USAGE {__file__} [INPUT_JSON] [OUTPUT]')
+    exit(2)
+input_file_name = sys.argv[1]
+output_file_name = sys.argv[2]
+
+def trailing_comma(arr, idx):
+    if(idx < len(arr)):
+       return ','
+    else:
+       return ''
+
+with open(input_file_name) as input_file:
+
+    try:
+        bank_defs = json.load(input_file)
+
+        print('  std::vector<BankDef> const bank_defs{')
+        i_bank_def = 0
+        for bank_def in bank_defs:
+            i_bank_def += 1
+            trail_bank_def = trailing_comma(bank_defs, i_bank_def)
+            print(f'    {{')
+            print(f'      .name = "{bank_def["name"]}",')
+            print(f'      .group = {bank_def["group"]},')
+            print(f'      .item = {bank_def["item"]},')
+            print(f'      .entries = {{')
+            i_entry = 0
+            for entry in bank_def['entries']:
+                i_entry += 1
+                trail_entry = trailing_comma(bank_def['entries'], i_entry)
+                print(f'        {{ .name = "{entry["name"]}", .type = "{entry["type"]}" }}{trail_entry}')
+            print(f'      }}')
+            print(f'    }}{trail_bank_def}')
+        print('  };')
+
+    except json.decoder.JSONDecodeError:
+        print(f'ERROR: failed to parse {input_file_name}; check its JSON syntax', file=sys.stderr)
+        exit(1)

src/iguana/bankdefs/iguana_banks.json

@@ -0,0 +1,22 @@
+[
+  {
+    "name": "physics::InclusiveKinematics",
+    "group": 30000,
+    "item": 1,
+    "info": "",
+    "entries": [
+      { "name": "pindex",  "type": "S", "info": ""},
+      { "name": "Q2",      "type": "D", "info": ""},
+      { "name": "x",       "type": "D", "info": ""},
+      { "name": "y",       "type": "D", "info": ""},
+      { "name": "W",       "type": "D", "info": ""},
+      { "name": "nu",      "type": "D", "info": ""},
+      { "name": "qx",      "type": "D", "info": ""},
+      { "name": "qy",      "type": "D", "info": ""},
+      { "name": "qz",      "type": "D", "info": ""},
+      { "name": "qE",      "type": "D", "info": ""},
+      { "name": "beamPz",  "type": "D", "info": ""},
+      { "name": "targetM", "type": "D", "info": ""}
+    ]
+  }
+]