Add antlr4-runtime

recipes/recipes_emscripten/antlr4-runtime/build.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+set -exuo pipefail
+
+# Set default values for potentially unset variables
+EM_FORGE_SIDE_MODULE_CFLAGS="${EM_FORGE_SIDE_MODULE_CFLAGS:-}"
+EM_FORGE_SIDE_MODULE_LDFLAGS="${EM_FORGE_SIDE_MODULE_LDFLAGS:-}"
+CFLAGS="${CFLAGS:-}"
+CXXFLAGS="${CXXFLAGS:-}"
+LDFLAGS="${LDFLAGS:-}"
+
+export CFLAGS="$CFLAGS $EM_FORGE_SIDE_MODULE_CFLAGS"
+export CXXFLAGS="$CXXFLAGS $EM_FORGE_SIDE_MODULE_CFLAGS"
+export LDFLAGS="$LDFLAGS $EM_FORGE_SIDE_MODULE_LDFLAGS"
+
+# ANTLR4 C++ runtime lives in runtime/Cpp/ subdirectory
+cd runtime/Cpp
+
+mkdir -p build
+cd build
+
+emcmake cmake -GNinja \
+    ${CMAKE_ARGS} \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_CXX_STANDARD=17 \
+    -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
+    -DCMAKE_INSTALL_LIBDIR=lib \
+    -DCMAKE_PREFIX_PATH="${PREFIX}" \
+    -DANTLR_BUILD_CPP_TESTS=OFF \
+    -DANTLR_BUILD_SHARED=OFF \
+    -DANTLR_BUILD_STATIC=ON \
+    -DANTLR4_INSTALL=ON \
+    -DWITH_DEMO=OFF \
+    ..
+
+ninja install

recipes/recipes_emscripten/antlr4-runtime/build_tests.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -e
+
+export CFLAGS="${CFLAGS:-}"
+export CXXFLAGS="${CXXFLAGS:-}"
+
+emcmake cmake -S tests -B build_tests \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_PREFIX_PATH="${PREFIX}" \
+    -DCMAKE_FIND_ROOT_PATH="${PREFIX}" \
+    -DCMAKE_CXX_STANDARD=17
+
+emmake make -C build_tests -j"${CPU_COUNT:-1}"
+
+echo "Running test..."
+node build_tests/test_antlr4_runtime.js

recipes/recipes_emscripten/antlr4-runtime/recipe.yaml

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+context:
+  name: antlr-cpp-runtime
+  version: 4.13.2
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://github.com/antlr/antlr4/archive/refs/tags/${{ version }}.tar.gz
+  sha256: 9f18272a9b32b622835a3365f850dd1063d60f5045fb1e12ce475ae6e18a35bb
+
+build:
+  number: 0
+  script: build.sh
+
+requirements:
+  build:
+  - ${{ compiler('c') }}
+  - ${{ compiler('cxx') }}
+  - cmake
+  - ninja
+
+tests:
+- package_contents:
+    lib:
+    - libantlr4-runtime.a
+    include:
+    - antlr4-runtime/antlr4-runtime.h
+- script:
+  - build_tests.sh
+  requirements:
+    build:
+    - ${{ compiler('cxx') }}
+    - cmake
+    - ninja
+  files:
+    recipe:
+    - build_tests.sh
+    - tests/
+
+about:
+  homepage: https://www.antlr.org/
+  license: BSD-3-Clause
+  license_family: BSD
+  license_file: LICENSE.txt
+  summary: ANTLR (ANother Tool for Language Recognition) C++ runtime library
+  description: |
+    ANTLR is a powerful parser generator for reading, processing, executing,
+    or translating structured text or binary files. This package provides
+    the C++ runtime library required to run parsers generated by ANTLR 4.
+  documentation: https://github.com/antlr/antlr4/blob/master/doc/index.md
+  repository: https://github.com/antlr/antlr4
+
+extra:
+  recipe-maintainers:
+  - Alex-PLACET

recipes/recipes_emscripten/antlr4-runtime/tests/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+project(test_antlr4_runtime CXX)
+set(CMAKE_CXX_STANDARD 17)
+
+find_path(ANTLR4_INCLUDE_DIR antlr4-runtime.h
+    PATHS "${PREFIX}/include/antlr4-runtime"
+    NO_DEFAULT_PATH)
+
+find_library(ANTLR4_LIBRARY antlr4-runtime
+    PATHS "${PREFIX}/lib"
+    NO_DEFAULT_PATH)
+
+if(NOT ANTLR4_INCLUDE_DIR OR NOT ANTLR4_LIBRARY)
+    message(FATAL_ERROR "Could not find antlr4-runtime library or headers")
+endif()
+
+add_executable(test_antlr4_runtime test_antlr4.cpp)
+target_include_directories(test_antlr4_runtime PRIVATE
+    "${PREFIX}/include"
+    "${ANTLR4_INCLUDE_DIR}")
+target_link_libraries(test_antlr4_runtime PRIVATE ${ANTLR4_LIBRARY})

recipes/recipes_emscripten/antlr4-runtime/tests/test_antlr4.cpp

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+#include <antlr4-runtime.h>
+#include <iostream>
+
+int main() {
+    // Create an ANTLR input stream from a string
+    antlr4::ANTLRInputStream input("hello world");
+
+    // Verify basic properties
+    if (input.size() != 11) {
+        std::cerr << "FAIL: expected size 11, got " << input.size() << std::endl;
+        return 1;
+    }
+
+    // Check that we can read characters
+    std::string consumed;
+    for (size_t i = 0; i < input.size(); ++i) {
+        consumed += input.LA(static_cast<ssize_t>(i + 1));
+    }
+    if (consumed != "hello world") {
+        std::cerr << "FAIL: expected 'hello world', got '" << consumed << "'" << std::endl;
+        return 1;
+    }
+
+    // Test reset and index tracking
+    input.reset();
+    if (input.index() != 0) {
+        std::cerr << "FAIL: expected index 0 after reset, got " << input.index() << std::endl;
+        return 1;
+    }
+
+    std::cout << "ANTLR4 runtime test passed!" << std::endl;
+    return 0;
+}