feat(core): convert abnf to peggy grammar

- convert each .abnf to a .pegjs file

Fixes: #13175

developer/src/kmc-ldml/.gitignore

@@ -0,0 +1 @@
+src/util/abnf/*.pegjs

developer/src/kmc-ldml/build.sh

@@ -9,6 +9,8 @@ THIS_SCRIPT="$(readlink -f "${BASH_SOURCE[0]}")"
 ## END STANDARD BUILD SCRIPT INCLUDE
 
 . "$KEYMAN_ROOT/resources/shellHelperFunctions.sh"
+# for CLDR version
+. "$KEYMAN_ROOT/core/include/ldml/keyman_core_ldml.sh"
 
 builder_describe "Keyman kmc Keyboard Compiler module" \
   "@/common/web/keyman-version" \
@@ -34,17 +36,31 @@ builder_describe_outputs \
 builder_parse "$@"
 
 function do_clean() {
-  rm -rf ./build/ ./tsconfig.tsbuildinfo
+  rm -rf ./build/ ./tsconfig.tsbuildinfo ./src/util/abnf/*.pegjs
 }
 
 function do_configure() {
   verify_npm_setup
+  do_build_abnf
 }
 
 function do_build() {
   npm run build
 }
 
+function do_build_abnf() {
+  ABNF_SRC="$KEYMAN_ROOT/resources/standards-data/ldml-keyboards/$LDML_CLDR_VERSION_LATEST/abnf"
+  for file in ${ABNF_SRC}/*.abnf; do
+    base=$(basename "$file" .abnf)
+    peg="$base.pegjs"
+    outfile="./src/util/abnf/$peg"
+    if [ ! -f "$outfile" ]; then
+      printf "${COLOR_GREY}abnf_gen ${COLOR_PURPLE}${base}.abnf -> ${peg}${COLOR_RESET}"
+      npx -p abnf abnf_gen  "$file" -o "$outfile"
+    fi
+  done
+}
+
 function do_build_fixtures() {
   # Build basic.kmx and emit its checksum
   mkdir -p ./build/test/fixtures

developer/src/kmc-ldml/package.json

@@ -29,6 +29,7 @@
     "@keymanapp/keyman-version": "*",
     "@keymanapp/kmc-kmn": "*",
     "@keymanapp/ldml-keyboard-constants": "*",
+    "peggy": "^4.2.0",
     "semver": "^7.5.4"
   },
   "devDependencies": {
@@ -38,6 +39,7 @@
     "@types/mocha": "^5.2.7",
     "@types/node": "^20.4.1",
     "@types/semver": "^7.3.12",
+    "abnf": "^4.3.1",
     "c8": "^7.12.0",
     "chalk": "^2.4.2",
     "common-tags": "^1.8.2",