#!/usr/bin/env bash
set -euo pipefail

cd "$(dirname "$0")"

# LinuxCNC source basis: the native RS274 smoke exercises the LinuxCNC-backed
# rs274 dump bridge built from project adapters and LinuxCNC RS274 headers;
# interpreter behavior is provided by LinuxCNC source-linked objects.
linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
cxx=${CXX:-g++}
if [[ -z ${CXX:-} ]] && command -v ccache >/dev/null 2>&1; then
    cxx="ccache $cxx"
fi
build_jobs=${CNC_SIM_BUILD_JOBS:-8}
if ! [[ "$build_jobs" =~ ^[1-9][0-9]*$ ]]; then
    echo "CNC_SIM_BUILD_JOBS must be a positive integer: $build_jobs" >&2
    exit 1
fi
build_dir=${CNC_SIM_RS274_NATIVE_BUILD_DIR-build/rs274-native-test}
if [[ -z "$build_dir" ]]; then
    echo "CNC_SIM_RS274_NATIVE_BUILD_DIR must not be empty" >&2
    exit 1
fi
if [[ "$build_dir" =~ [[:space:]] ]]; then
    echo "CNC_SIM_RS274_NATIVE_BUILD_DIR must not contain whitespace: $build_dir" >&2
    exit 1
fi

mkdir -p "$build_dir"
build_dir=$(cd "$build_dir" && pwd)
if [[ "$build_dir" == "/" ]]; then
    echo "CNC_SIM_RS274_NATIVE_BUILD_DIR must not be the filesystem root" >&2
    exit 1
fi
preflight_cache_dir="$build_dir/preflight-cache"
LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs-cached.sh --cache-dir "$preflight_cache_dir" --root-only
linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
# The LinuxCNC rs274 backend path can bus-error when two dumps run concurrently.
exec 9>"${TMPDIR:-/tmp}/cnc_sim_linuxcnc_rs274_native.lock"
flock 9

var_file="$build_dir/rs274ngc.var"
base_var_file="$build_dir/rs274ngc-base.var"
ini_named_parameter_file="$(pwd)/tests/gcode/linuxcnc_ini_named_parameter.ini"
output_dir="$build_dir/outputs"
mkdir -p "$output_dir"
cp "$linuxcnc_root/tests/halui/jogging/sim.var" "$base_var_file"
cp "$base_var_file" "$var_file"

project_source_list="$build_dir/linuxcnc_rs274_dump_project_sources.txt"
./list-linuxcnc-rs274-dump-project-sources.sh > "$project_source_list"
mapfile -t project_sources < "$project_source_list"

common_flag_output=$(
    LINUXCNC_ROOT="$linuxcnc_root" ./list-linuxcnc-source-common-cxxflags.sh \
        --no-ulapi \
        --python \
        --core-include \
        --core-src
)
mapfile -t common_flags <<<"$common_flag_output"
link_flag_output=$(LINUXCNC_ROOT="$linuxcnc_root" ./list-linuxcnc-native-linkflags.sh)
mapfile -t link_flags <<<"$link_flag_output"

project_objects=()
project_index=0
for source in "${project_sources[@]}"; do
    project_objects+=("$build_dir/project_${project_index}.o")
    project_index=$((project_index + 1))
done

rs274_native_signature="$build_dir/rs274-native.signature"
rs274_native_next_signature="$build_dir/rs274-native.signature.next"
{
    printf 'CXX=%s\n' "$cxx"
    printf 'PWD=%s\n' "$PWD"
    printf 'LINUXCNC_ROOT=%s\n' "$linuxcnc_root"
    printf 'BUILD_RULE_VERSION=1\n'
    printf 'COMMON_FLAGS='
    printf ' %s' "${common_flags[@]}"
    printf '\n'
    printf 'LINK_FLAGS='
    printf ' %s' "${link_flags[@]}"
    printf '\n'
    printf 'PROJECT_SOURCES:\n'
    printf '%s\n' "${project_sources[@]}"
} > "$rs274_native_next_signature"
if [[ ! -f "$rs274_native_signature" ]] || ! cmp -s "$rs274_native_signature" "$rs274_native_next_signature"; then
    rm -f "$build_dir"/project_*.o \
        "$build_dir"/project_*.o.d \
        "$build_dir/linuxcnc_rs274_dump"
fi
mv "$rs274_native_next_signature" "$rs274_native_signature"

rs274_native_makefile="$build_dir/rs274-native.mk"
{
    printf 'CXX := %s\n' "$cxx"
    printf 'COMMON_FLAGS :='
    printf ' %s' "${common_flags[@]}"
    printf '\n'
    printf 'LINK_FLAGS :='
    printf ' %s' "${link_flags[@]}"
    printf '\n\n'
    printf 'PROJECT_OBJECTS :='
    printf ' %s' "${project_objects[@]}"
    printf '\n\n'
    printf 'DEP_FILES :=\n'
    for object in "${project_objects[@]}"; do
        printf 'DEP_FILES += %s.d\n' "$object"
    done
    printf '\n.PHONY: all\n'
    printf 'all: %s\n\n' "$build_dir/linuxcnc_rs274_dump"

    project_index=0
    for source in "${project_sources[@]}"; do
        printf '%s: %s\n' "${project_objects[$project_index]}" "$source"
        printf '\t@$(CXX) $(COMMON_FLAGS) -MMD -MP -MF %s.d -c %s -o %s\n\n' \
            "${project_objects[$project_index]}" "$source" "${project_objects[$project_index]}"
        project_index=$((project_index + 1))
    done

    printf '%s: $(PROJECT_OBJECTS)\n' "$build_dir/linuxcnc_rs274_dump"
    printf '\t@$(CXX) $(PROJECT_OBJECTS) $(LINK_FLAGS) -lrs274 -ltooldata -lpython3.13 -o %s\n' "$build_dir/linuxcnc_rs274_dump"
    printf '\n-include $(DEP_FILES)\n'
} > "$rs274_native_makefile"
make --output-sync=target -j"$build_jobs" -f "$rs274_native_makefile"

CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_basic_motion.ngc >"$output_dir/cnc_sim_linuxcnc_basic_motion.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/basic_mill.ngc >"$output_dir/cnc_sim_linuxcnc_basic_mill.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc
# convert_distance_mode() updates G90/G91 state, and convert_arc() routes
# R-format arcs through src/emc/rs274ngc/interp_find.cc arc-center math.
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/incremental_and_r_arc.ngc >"$output_dir/cnc_sim_linuxcnc_incremental_and_r_arc.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_rtcp_controls.ngc >"$output_dir/cnc_sim_linuxcnc_rtcp_controls.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_spindle_direction.ngc >"$output_dir/cnc_sim_linuxcnc_spindle_direction.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_spindle_modes.ngc >"$output_dir/cnc_sim_linuxcnc_spindle_modes.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_spindle_orient.ngc >"$output_dir/cnc_sim_linuxcnc_spindle_orient.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_io_controls.ngc >"$output_dir/cnc_sim_linuxcnc_io_controls.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc convert_m()
# validates M62-M68 input/output words, M3/M4/M5/M19 spindle selectors, M61 Q
# tool numbers, and M19 Q wait values before issuing Canon output/input, tool,
# or spindle-orient calls. LinuxCNC src/emc/rs274ngc/interp_check.cc
# check_other_codes() validates M19 P/R words before conversion.
convert_m_error_cases=(
    "linuxcnc_m3_spindle_dollar_out_of_range_error|Spindle (\$) number out of range in M3 Command"
    "linuxcnc_m4_spindle_dollar_out_of_range_error|Spindle (\$) number out of range in M4 Command"
    "linuxcnc_m5_spindle_dollar_out_of_range_error|Spindle (\$) number out of range in M5 Command"
    "linuxcnc_m62_missing_p_word_error|No valid P word with M62"
    "linuxcnc_m63_missing_p_word_error|No valid P word with M63"
    "linuxcnc_m64_missing_p_word_error|No valid P word with M64"
    "linuxcnc_m65_missing_p_word_error|No valid P word with M65"
    "linuxcnc_m66_missing_input_error|Need to have either a valid P or a valid E word with M66"
    "linuxcnc_m66_both_inputs_error|Invalid to select both a digital and an analog input with M66"
    "linuxcnc_m66_zero_timeout_error|Zero timeout with wait type != immediate return"
    "linuxcnc_m66_analog_wait_error|Can't select analog input with wait type != immediate return"
    "linuxcnc_m67_missing_e_word_error|Invalid analog index with M67"
    "linuxcnc_m68_missing_e_word_error|Invalid analog index with M68"
    "linuxcnc_m19_spindle_dollar_out_of_range_error|Spindle (\$) number out of range in M19 Command"
    "linuxcnc_m19_p_not_integer_error|P value not an integer with M19 G2 or G3"
    "linuxcnc_m19_p_out_of_range_error|P value must be 0,1,or 2 with M19"
    "linuxcnc_m19_r_out_of_range_error|R value must be within 0..360 with M19"
    "linuxcnc_m19_zero_q_error|Q word with M19 requires a value > 0"
    "linuxcnc_m61_negative_q_error|Need non-negative Q-word to specify tool number with M61"
)
for case in "${convert_m_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_override_controls.ngc >"$output_dir/cnc_sim_linuxcnc_override_controls.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_modal_state.ngc >"$output_dir/cnc_sim_linuxcnc_modal_state.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_modal_autorestore.ngc >"$output_dir/cnc_sim_linuxcnc_modal_autorestore.json"
if CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_modal_invalidate.ngc >"$output_dir/cnc_sim_linuxcnc_modal_invalidate.json" 2>"$output_dir/cnc_sim_linuxcnc_modal_invalidate.err"; then
    echo "expected linuxcnc_modal_invalidate.ngc to fail" >&2
    exit 1
fi
# Source basis: LinuxCNC src/emc/rs274ngc/interp_internal.cc
# enhance_block() assigns motion_to_be and rejects invalid axis use with G80,
# missing axes for G52/G92 or motion codes, bare axis words without active
# motion, and modal-0 G codes that consume axis values on a motion block.
enhance_block_error_cases=(
    "linuxcnc_g80_axis_error|Cannot use axis values with g80"
    "linuxcnc_g52_missing_axis_error|All axes missing with g52 or g92"
    "linuxcnc_g92_missing_axis_error|All axes missing with g52 or g92"
    "linuxcnc_motion_missing_axis_error|All axes missing with motion code"
    "linuxcnc_axis_without_motion_error|Cannot use axis values without a g code that uses them"
    "linuxcnc_motion_with_g92_axis_error|Cannot use two g codes that both use axis values"
)
for case in "${enhance_block_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_check.cc
# check_g_codes() rejects invalid modal-0 combinations for G4, G10, and G53
# before convert_g() executes motion or coordinate updates.
check_g_code_error_cases=(
    "linuxcnc_g4_missing_p_error|Dwell time missing with g4"
    "linuxcnc_g4_arc_p_conflict_error|G4 not allowed with G2 or G3 because they both use P"
    "linuxcnc_g10_invalid_l_error|Line with G10 does not have L0, L1, L10, L11, L2, or L20"
    "linuxcnc_g10_p_non_integer_error|P value not an integer with G10"
    "linuxcnc_g10_l2_p_out_of_range_error|P value out of range (0-9) with G10 L2"
    "linuxcnc_g10_l1_p_out_of_range_error|P value out of range with G10 L1"
    "linuxcnc_g53_arc_error|Must use g0 or g1 with g53"
    "linuxcnc_g53_incremental_error|Cannot use g53 incremental"
)
for case in "${check_g_code_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# read_g()/read_m() validate numeric range, known code tables from
# interp_array.cc, and same-modal-group conflicts while filling a block.
gm_reader_error_cases=(
    "linuxcnc_g_code_out_of_range_error|G-code out of range"
    "linuxcnc_unknown_g_code_error|Unknown g code used"
    "linuxcnc_two_g_codes_same_modal_group_error|Two g codes used from same modal group"
    "linuxcnc_m_code_greater_199_error|M-code greater than 199: M200"
    "linuxcnc_unknown_m_code_error|Unknown m code used: M13"
    "linuxcnc_two_m_codes_same_modal_group_error|Two m codes used from same modal group"
)
for case in "${gm_reader_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# read_items() only consumes a leading N word before item dispatch;
# read_one_item() then uses the default reader table from interp_array.cc
# and rejects unknown item-start characters, including middle-of-line or
# comment-prefixed N/O words, midline O-words, bracket expressions, naked
# numbers, and non-leading ATAN argument slashes.
bad_character_error_cases=(
    "linuxcnc_bad_character_bang_error|Bad character '!' used"
    "linuxcnc_bad_character_middle_n_word_error|Bad character 'n' used"
    "linuxcnc_comment_prefixed_n_word_error|Bad character 'n' used"
    "linuxcnc_comment_prefixed_spaced_n_word_error|Bad character 'n' used"
    "linuxcnc_comment_prefixed_oword_error|Bad character 'o' used"
    "linuxcnc_midline_numeric_oword_error|Bad character 'o' used"
    "linuxcnc_midline_named_oword_error|Bad character 'o' used"
    "linuxcnc_bad_character_top_left_bracket_error|Bad character '[' used"
    "linuxcnc_bad_character_top_right_bracket_error|Bad character ']' used"
    "linuxcnc_bad_character_midline_left_bracket_error|Bad character '[' used"
    "linuxcnc_bad_character_midline_right_bracket_error|Bad character ']' used"
    "linuxcnc_bad_character_top_number_error|Bad character '1' used"
    "linuxcnc_top_level_bare_atan_error|Bad character '/' used"
    "linuxcnc_midline_bare_atan_error|Bad character '/' used"
)
for case in "${bad_character_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_check.cc
# check_m_codes() rejects blocks with more than MAX_EMS M-codes.
if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
    "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_too_many_m_codes_error.ngc \
    >"$output_dir/cnc_sim_linuxcnc_too_many_m_codes_error.json" 2>"$output_dir/cnc_sim_linuxcnc_too_many_m_codes_error.err"; then
    echo "expected linuxcnc_too_many_m_codes_error.ngc to fail" >&2
    exit 1
fi
grep -Fq "Too many m codes on line" \
    "$output_dir/cnc_sim_linuxcnc_too_many_m_codes_error.err"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# read_f()/read_g()/read_h()/read_l()/read_m()/read_s()/read_t()
# reject negative word values before command execution.
negative_word_error_cases=(
    "linuxcnc_negative_f_word_error|Negative f word used"
    "linuxcnc_negative_g_code_error|Negative g code used"
    "linuxcnc_negative_h_word_error|Negative h word used"
    "linuxcnc_negative_l_word_error|Negative l word used"
    "linuxcnc_negative_m_code_error|Negative m code used"
    "linuxcnc_negative_s_word_error|Negative spindle speed used"
    "linuxcnc_negative_t_word_error|Negative tool id (tool not found)"
)
for case in "${negative_word_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# the word-specific reader functions reject repeated words while
# filling a single block.
multiple_word_error_cases=(
    "linuxcnc_multiple_a_words_error|Multiple a words on one line"
    "linuxcnc_multiple_b_words_error|Multiple b words on one line"
    "linuxcnc_multiple_c_words_error|Multiple c words on one line"
    "linuxcnc_multiple_d_words_error|Multiple d words on one line"
    "linuxcnc_multiple_e_words_error|Multiple e words on one line"
    "linuxcnc_multiple_f_words_error|Multiple f words on one line"
    "linuxcnc_multiple_h_words_error|Multiple h words on one line"
    "linuxcnc_multiple_i_words_error|Multiple i words on one line"
    "linuxcnc_multiple_j_words_error|Multiple j words on one line"
    "linuxcnc_multiple_k_words_error|Multiple k words on one line"
    "linuxcnc_multiple_l_words_error|Multiple l words on one line"
    "linuxcnc_multiple_p_words_error|Multiple p words on one line"
    "linuxcnc_multiple_q_words_error|Multiple q words on one line"
    "linuxcnc_multiple_r_words_error|Multiple r words on one line"
    "linuxcnc_multiple_s_words_error|Multiple s words on one line"
    "linuxcnc_multiple_t_words_error|Multiple t words on one line"
    "linuxcnc_multiple_u_words_error|Multiple U words on one line"
    "linuxcnc_multiple_v_words_error|Multiple V words on one line"
    "linuxcnc_multiple_w_words_error|Multiple W words on one line"
    "linuxcnc_multiple_x_words_error|Multiple x words on one line"
    "linuxcnc_multiple_y_words_error|Multiple y words on one line"
    "linuxcnc_multiple_z_words_error|Multiple z words on one line"
)
for case in "${multiple_word_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# read_dollar() rejects repeated spindle-choice words while filling a block.
if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
    "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_multiple_spindle_choice_words_error.ngc \
    >"$output_dir/cnc_sim_linuxcnc_multiple_spindle_choice_words_error.json" 2>"$output_dir/cnc_sim_linuxcnc_multiple_spindle_choice_words_error.err"; then
    echo "expected linuxcnc_multiple_spindle_choice_words_error.ngc to fail" >&2
    exit 1
fi
grep -Fq "Multiple spindle choice (\$) words on one line" \
    "$output_dir/cnc_sim_linuxcnc_multiple_spindle_choice_words_error.err"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_check.cc
# check_other_codes() rejects otherwise well-formed words that have no active
# G/M/O code in the block to consume them.
unused_word_error_cases=(
    "linuxcnc_d_word_no_use_error|D word with no G41, G41.1, G42, G42.1, G71, G71.1, G71.2 G73, G83 or G96 to use it"
    "linuxcnc_spindle_dollar_no_use_error|\$ (spindle selection) word with no M3, M4, M5, M19, M51, G33, G33.1, G76, G95, G96 or G97 to use it"
    "linuxcnc_e_word_no_use_error|E word with no G70, G76, M66, M67 or M68 to use it"
    "linuxcnc_h_word_no_use_error|H word with no G43 or G76 to use it"
    "linuxcnc_i_word_no_use_error|I word with no G2, G3, G5, G5.1, G6, G6.1, G10, G33.1, G76, or G87 to use it"
    "linuxcnc_j_word_no_use_error|J word with no G2, G3, G5, G5.1, G6, G6.1, G10, G76 or G87 to use it"
    "linuxcnc_k_word_no_use_error|K word with no G2, G3, G6.2, G33, G33.1, G76, or G87 to use it"
    "linuxcnc_l_word_no_use_error|L word with no G10, cutter compensation, canned cycle, digital/analog input, M98 or NURBS code"
    "linuxcnc_p_word_no_use_error|P word with no G2 G3 G4 G10 G64 G5 G5.2 G6, G6.2, G76 G82 G86 G88 G89 or M50 M51 M52 M53 M62 M63 M64 M65 M66 M98 or user M code to use it"
    "linuxcnc_q_word_no_use_error|Q word with no G5, G6, G10, G64, G73, G76, G83, M19, M66, M67, M68 or user M code that uses it"
    "linuxcnc_r_word_no_use_error|R word with no g code that uses it"
)
for case in "${unused_word_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_check.cc
# check_other_codes() enforces required and disallowed words for G96,
# G33/G33.1, and G76 before motion conversion.
threading_check_error_cases=(
    "linuxcnc_g96_missing_s_word_error|S word missing with G96"
    "linuxcnc_g33_missing_k_word_error|K word missing with g33/g33.1"
    "linuxcnc_g33_f_word_error|F word used with a g33/g33.1"
    "linuxcnc_g33_1_missing_k_word_error|K word missing with g33/g33.1"
    "linuxcnc_g33_1_f_word_error|F word used with a g33/g33.1"
    "linuxcnc_g76_missing_p_word_error|P word missing with G76"
    "linuxcnc_g76_missing_i_word_error|I J or K words missing with G76"
    "linuxcnc_g76_missing_j_word_error|I J or K words missing with G76"
    "linuxcnc_g76_missing_k_word_error|I J or K words missing with G76"
)
for case in "${threading_check_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_threading_sync.ngc >"$output_dir/cnc_sim_linuxcnc_threading_sync.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_threading_cycle.ngc >"$output_dir/cnc_sim_linuxcnc_threading_cycle.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc
# convert_lathe_diameter_mode() scales G7/G8 X words and G76 I/J/K words;
# interp_namedparams.cc exposes #<_lathe_diameter_mode> and
# #<_lathe_radius_mode>.
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_lathe_diameter_mode.ngc >"$output_dir/cnc_sim_linuxcnc_lathe_diameter_mode.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_lathe_diameter_g76.ngc >"$output_dir/cnc_sim_linuxcnc_lathe_diameter_g76.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_tool_number.ngc >"$output_dir/cnc_sim_linuxcnc_tool_number.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc
# convert_tool_select() and convert_m() M61 both route through
# src/emc/rs274ngc/interp_find.cc find_tool_index() for tooldata lookup.
tool_number_error_cases=(
    "linuxcnc_t_missing_tool_error|Requested tool 99 not found in the tool table"
    "linuxcnc_m61_missing_tool_error|Requested tool 99 not found in the tool table"
)
for case in "${tool_number_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_program_stops.ngc >"$output_dir/cnc_sim_linuxcnc_program_stops.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_coolant.ngc >"$output_dir/cnc_sim_linuxcnc_coolant.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_feed_modes.ngc >"$output_dir/cnc_sim_linuxcnc_feed_modes.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_motion_modes.ngc >"$output_dir/cnc_sim_linuxcnc_motion_modes.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_tool_length.ngc >"$output_dir/cnc_sim_linuxcnc_tool_length.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_dynamic_tool_length.ngc >"$output_dir/cnc_sim_linuxcnc_dynamic_tool_length.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc
# convert_tool_length_offset() rejects invalid G43.2 H/axis combinations,
# and src/emc/rs274ngc/interp_find.cc find_tool_index() rejects H tool
# numbers missing from the LinuxCNC tooldata table.
tool_length_offset_error_cases=(
    "linuxcnc_g43_missing_tool_error|Requested tool 99 not found in the tool table"
    "linuxcnc_g43_2_missing_tool_error|Requested tool 99 not found in the tool table"
    "linuxcnc_g43_2_h_axis_error|G43.2: Can not have both H and axis words"
    "linuxcnc_g43_2_missing_h_axis_error|G43.2: No axes specified and H word missing"
)
for case in "${tool_length_offset_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_canned_cycle.ngc >"$output_dir/cnc_sim_linuxcnc_canned_cycle.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_cycles.cc
# convert_cycle() and the G73/G74/G82-G89 helpers validate canned-cycle
# repeat counts, plane-specific axis/R words, Q/P requirements, and spindle
# state before expanding cycles to Canon motion.
canned_cycle_error_cases=(
    "linuxcnc_canned_cycle_l0_error|Cannot do zero repeats of cycle"
    "linuxcnc_canned_cycle_missing_r_error|R clearance plane unspecified in cycle"
    "linuxcnc_canned_cycle_missing_z_error|Z value unspecified in xy plane canned cycle"
    "linuxcnc_canned_cycle_g18_missing_y_error|Y value unspecified in xz plane canned cycle"
    "linuxcnc_canned_cycle_g19_missing_x_error|X value unspecified in yz plane canned cycle"
    "linuxcnc_canned_cycle_r_less_z_error|R less than z in cycle in xy plane"
    "linuxcnc_canned_cycle_g18_r_less_y_error|R less than y in cycle in xz plane"
    "linuxcnc_canned_cycle_g19_r_less_x_error|R less than x in cycle in yz plane"
    "linuxcnc_canned_cycle_u_in_xy_error|Cannot put a U in a canned cycle in the XY plane"
    "linuxcnc_canned_cycle_a_error|Cannot put an a in canned cycle"
    "linuxcnc_canned_cycle_b_error|Cannot put a b in canned cycle"
    "linuxcnc_canned_cycle_c_error|Cannot put a c in canned cycle"
    "linuxcnc_canned_cycle_g73_missing_q_error|Q word missing with g73"
    "linuxcnc_canned_cycle_g83_missing_q_error|Q word missing with g83"
    "linuxcnc_canned_cycle_g73_q0_error|Negative or zero q value used"
    "linuxcnc_canned_cycle_g83_q0_error|Negative or zero q value used"
    "linuxcnc_canned_cycle_g82_missing_p_error|Dwell time p word missing with g82"
    "linuxcnc_canned_cycle_g86_missing_p_error|Dwell time p word missing with g86"
    "linuxcnc_canned_cycle_g88_missing_p_error|Dwell time p word missing with g88"
    "linuxcnc_canned_cycle_g89_missing_p_error|Dwell time p word missing with g89"
    "linuxcnc_canned_cycle_g74_clockwise_error|Spindle turning clockwise in G74"
    "linuxcnc_canned_cycle_g84_counterclockwise_error|Spindle turning counterclockwise in G84"
    "linuxcnc_canned_cycle_g74_stopped_spindle_error|Spindle not turning in G74"
    "linuxcnc_canned_cycle_g84_stopped_spindle_error|Spindle not turning in G84"
    "linuxcnc_canned_cycle_g86_stopped_spindle_error|Spindle not turning in g86"
    "linuxcnc_canned_cycle_g88_stopped_spindle_error|Spindle not turning in g88"
    "linuxcnc_canned_cycle_g87_stopped_spindle_error|Spindle not turning in g87"
    "linuxcnc_canned_cycle_g87_missing_k_error|K word missing with g87"
    "linuxcnc_canned_cycle_g87_missing_i_error|I word missing with g87"
    "linuxcnc_canned_cycle_g87_missing_j_error|J word missing with g87"
)
for case in "${canned_cycle_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_canned_cycles_extended.ngc >"$output_dir/cnc_sim_linuxcnc_canned_cycles_extended.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_canned_cycle_planes.ngc >"$output_dir/cnc_sim_linuxcnc_canned_cycle_planes.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_arc_planes.ngc >"$output_dir/cnc_sim_linuxcnc_arc_planes.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_arc_distance_modes.ngc >"$output_dir/cnc_sim_linuxcnc_arc_distance_modes.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc read_atsign()
# and read_carat() parse @/^ polar words; src/emc/rs274ngc/interp_internal.cc
# enhance_block() restricts polar coordinates to G17 motion without X/Y words;
# src/emc/rs274ngc/interp_find.cc find_ends() maps absolute polar radius/angle
# to XY endpoints and rejects G53 or origin-indeterminate polar motions.
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_polar_coordinates.ngc >"$output_dir/cnc_sim_linuxcnc_polar_coordinates.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_polar_coordinate_variants.ngc >"$output_dir/cnc_sim_linuxcnc_polar_coordinate_variants.json"
polar_coordinate_error_cases=(
    "linuxcnc_polar_g18_error|Cannot use polar coordinate except in G17 plane"
    "linuxcnc_polar_with_x_error|Cannot specify both polar coordinate and X word"
    "linuxcnc_polar_with_y_error|Cannot specify both polar coordinate and Y word"
    "linuxcnc_polar_g92_error|Polar coordinates can only be used for motion"
    "linuxcnc_polar_g53_error|Cannot use polar coordinates with G53"
    "linuxcnc_polar_radius_origin_error|Must specify angle in polar coordinate if at the origin"
    "linuxcnc_polar_incremental_radius_origin_error|Incremental motion with polar coordinates is indeterminate when at the origin"
    "linuxcnc_polar_incremental_theta_origin_error|G91 motion with polar coordinates is indeterminate when at the origin"
)
for case in "${polar_coordinate_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_convert.cc convert_arc()
# rejects arcs in extended planes, and convert_nurbs() requires canonical
# XY/YZ/ZX planes before NURBS setup.
extended_plane_error_cases=(
    "linuxcnc_extended_plane_arc_error|Cannot do an arc in planes G17.1, G18.1, or G19.1"
    "linuxcnc_g62_extended_plane_error|one plane must be selected for nurbs: XY, YZ, ZX"
)
for case in "${extended_plane_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_predefined_positions.ngc >"$output_dir/cnc_sim_linuxcnc_predefined_positions.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_machine_coordinates.ngc >"$output_dir/cnc_sim_linuxcnc_machine_coordinates.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_cutter_comp.ngc >"$output_dir/cnc_sim_linuxcnc_cutter_comp.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_comments.ngc >"$output_dir/cnc_sim_linuxcnc_comments.json"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_probe_no_error.ngc >"$output_dir/cnc_sim_linuxcnc_probe_no_error.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/smoke_oword_subprogram.ngc >"$output_dir/cnc_sim_linuxcnc_oword_subprogram.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_named_oword_subprogram.ngc >"$output_dir/cnc_sim_linuxcnc_named_oword_subprogram.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc read_m() marks
# Fanuc-style M98/M99 subprogram blocks, and interp_o_word.cc execute_call()
# handles L-word repeat counts and return-to-caller position.
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/smoke_subprogram_m98.ngc >"$output_dir/cnc_sim_linuxcnc_m98_subprogram.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc read_o()
# and read_items() reject malformed O-word control lines, empty call
# parameter expressions through read_real_expression()/read_real_number(),
# and Fanuc-style M98 calls before execution.
oword_reader_error_cases=(
    "linuxcnc_oword_unknown_command_error|Unknown control command in o word"
    "linuxcnc_oword_unexpected_trailing_item_error|Unexpected character after O-word"
    "linuxcnc_oword_if_missing_bracket_error|Left bracket missing after 'if'"
    "linuxcnc_oword_elseif_missing_bracket_error|Left bracket missing after 'elseif'"
    "linuxcnc_oword_while_missing_bracket_error|Left bracket missing after 'while'"
    "linuxcnc_oword_repeat_missing_bracket_error|Left bracket missing after 'repeat'"
    "linuxcnc_oword_too_many_call_parameters_error|Too many subroutine parameters"
    "linuxcnc_oword_empty_call_parameter_error|bad number format (conversion failed) parsing ''"
    "linuxcnc_m98_missing_p_word_error|Found 'm98' code with no P-word"
    "linuxcnc_midline_m98_error|Unknown m code used: M98"
    "linuxcnc_comment_prefixed_m98_error|Unknown m code used: M98"
)
for case in "${oword_reader_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_o_word.cc
# convert_control_functions() rejects unmatched, duplicate, and
# out-of-context O-word control labels during execution.
oword_execution_error_cases=(
    "linuxcnc_oword_endsub_without_sub_error|not in a subroutine definition"
    "linuxcnc_oword_return_without_sub_error|not in a subroutine definition"
    "linuxcnc_oword_duplicate_if_label_error|duplicate O-word label"
    "linuxcnc_oword_elseif_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_else_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_endif_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_break_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_continue_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_endwhile_undefined_label_error|undefined O-word label"
    "linuxcnc_oword_elseif_no_matching_if_error|no matching 'if' label"
    "linuxcnc_oword_break_no_matching_loop_error|no matching while/do label"
    "linuxcnc_oword_continue_no_matching_loop_error|no matching while/do label"
    "linuxcnc_oword_endrepeat_no_matching_repeat_error|no matching label"
    "linuxcnc_oword_endif_no_matching_if_error|no matching label"
    "linuxcnc_oword_endwhile_no_matching_while_error|no matching label"
    "linuxcnc_oword_fanuc_requires_m99_error|Fanuc 'O....' subroutine definition must end with 'M99'"
    "linuxcnc_oword_sub_requires_endsub_error|'O.... endsub' or 'O.... return' must follow 'O.... sub'"
    "linuxcnc_oword_too_many_call_levels_error|Too many subroutine levels"
)
for case in "${oword_execution_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_oword_control_flow.ngc >"$output_dir/cnc_sim_linuxcnc_oword_control_flow.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_o_word.cc updates
# subroutine return values and call frames; interp_read.cc read_parameter()
# handles EXISTS[] word-value checks and lowercase numeric O-words in file mode.
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_value_returned.ngc >"$output_dir/cnc_sim_linuxcnc_value_returned.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_call_level.ngc >"$output_dir/cnc_sim_linuxcnc_call_level.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_exists_word_value.ngc >"$output_dir/cnc_sim_linuxcnc_exists_word_value.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_lowercase_numeric_oword.ngc >"$output_dir/cnc_sim_linuxcnc_lowercase_numeric_oword.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_m98_mixed_styles_variables.ngc >"$output_dir/cnc_sim_linuxcnc_m98_mixed_styles_variables.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_named_parameter_exists.ngc >"$output_dir/cnc_sim_linuxcnc_named_parameter_exists.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_indexed_parameters.ngc >"$output_dir/cnc_sim_linuxcnc_indexed_parameters.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_named_parameter_normalization.ngc >"$output_dir/cnc_sim_linuxcnc_named_parameter_normalization.json"
INI_FILE_NAME="$ini_named_parameter_file" CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_ini_named_parameter.ngc >"$output_dir/cnc_sim_linuxcnc_ini_named_parameter.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_namedparams.cc lookup_named_param()
# and init_readonly_param() expose modal/unit/feed/spindle readonly parameters.
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_readonly_named_parameters.ngc >"$output_dir/cnc_sim_linuxcnc_readonly_named_parameters.json"
# Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc
# read_parameter_setting(), read_parameter(), read_real_value(),
# read_atan(), read_unary(), and read_operation() reject malformed
# parameter assignments, references, unary calls, and binary expressions.
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_parameter_expression_assignment.ngc >"$output_dir/cnc_sim_linuxcnc_parameter_expression_assignment.json"
CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_expression_operators.ngc >"$output_dir/cnc_sim_linuxcnc_expression_operators.json"
if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
    "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_readonly_named_parameter_assign_error.ngc \
    >"$output_dir/cnc_sim_linuxcnc_readonly_named_parameter_assign_error.json" 2>"$output_dir/cnc_sim_linuxcnc_readonly_named_parameter_assign_error.err"; then
    echo "expected linuxcnc_readonly_named_parameter_assign_error.ngc to fail" >&2
    exit 1
fi
grep -Fq "Cannot assign to read-only parameter #<_line>" \
    "$output_dir/cnc_sim_linuxcnc_readonly_named_parameter_assign_error.err"
parameter_setting_error_cases=(
    "linuxcnc_parameter_missing_equal_error|Equal sign missing in parameter setting"
    "linuxcnc_midline_parameter_missing_equal_error|Equal sign missing in parameter setting"
    "linuxcnc_parameter_missing_value_error|No characters found in reading real value"
)
for case in "${parameter_setting_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
parameter_reader_error_cases=(
    "linuxcnc_parameter_number_out_of_range_error|Parameter number out of range"
    "linuxcnc_parameter_reference_out_of_range_error|Parameter number out of range"
    "linuxcnc_non_integer_parameter_index_error|Non integer value for integer"
    "linuxcnc_named_parameter_not_terminated_error|Named parameter not terminated"
    "linuxcnc_no_real_value_error|No characters found in reading real value"
    "linuxcnc_bad_number_format_error|bad number format (conversion failed) parsing '+'"
)
for case in "${parameter_reader_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
# Source basis: LinuxCNC src/emc/rs274ngc/interp_execute.cc
# execute_unary() and execute_binary1() reject invalid sqrt, divide, and
# power expression operators during read_real_expression().
expression_execute_error_cases=(
    "linuxcnc_negative_sqrt_error|Negative argument to sqrt"
    "linuxcnc_infinite_expression_error|Calculation resulted in 'infinity'"
    "linuxcnc_divide_by_zero_error|Attempt to divide by zero"
    "linuxcnc_negative_power_error|Attempt to raise negative to non integer power"
)
for case in "${expression_execute_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
atan_unary_error_cases=(
    "linuxcnc_atan_missing_slash_error|Slash missing after first atan argument"
    "linuxcnc_atan_missing_bracket_error|Left bracket missing after slash with atan"
    "linuxcnc_unary_missing_bracket_error|Left bracket missing after unary operation name"
    "linuxcnc_unary_unknown_word_error|Unknown word starting with a"
    "linuxcnc_unary_unknown_c_word_error|Unknown word starting with c"
    "linuxcnc_unary_unknown_e_word_error|Unknown word starting with e"
    "linuxcnc_unary_unknown_f_word_error|Unknown word starting with f"
    "linuxcnc_unary_unknown_l_word_error|Unknown word starting with l"
    "linuxcnc_unary_unknown_r_word_error|Unknown word starting with r"
    "linuxcnc_unary_unknown_s_word_error|Unknown word starting with s"
    "linuxcnc_unary_unknown_t_word_error|Unknown word starting with t"
    "linuxcnc_unary_unknown_default_word_error|Unknown word where unary operation could be"
    "linuxcnc_top_level_bare_unary_error|Unknown word where unary operation could be"
    "linuxcnc_midline_bare_unary_error|Unknown word where unary operation could be"
)
for case in "${atan_unary_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
binary_operation_error_cases=(
    "linuxcnc_binary_unknown_a_operation_error|Unknown operation name starting with a"
    "linuxcnc_binary_unknown_e_operation_error|Unknown operation name starting with e"
    "linuxcnc_binary_unknown_g_operation_error|Unknown operation name starting with g"
    "linuxcnc_binary_unknown_l_operation_error|Unknown operation name starting with l"
    "linuxcnc_binary_unknown_m_operation_error|Unknown operation name starting with m"
    "linuxcnc_binary_unknown_n_operation_error|Unknown operation name starting with n"
    "linuxcnc_binary_unknown_o_operation_error|Unknown operation name starting with o"
    "linuxcnc_binary_unknown_x_operation_error|Unknown operation name starting with x"
    "linuxcnc_binary_unknown_operation_error|Unknown operation"
    "linuxcnc_unclosed_expression_error|Unclosed expression"
)
for case in "${binary_operation_error_cases[@]}"; do
    fixture=${case%%|*}
    expected=${case#*|}
    if CNC_SIM_RS274_FILE_MODE=1 CNC_SIM_RS274_VAR="$var_file" \
        "$build_dir/linuxcnc_rs274_dump" "tests/gcode/$fixture.ngc" \
        >"$output_dir/cnc_sim_linuxcnc_$fixture.json" 2>"$output_dir/cnc_sim_linuxcnc_$fixture.err"; then
        echo "expected $fixture.ngc to fail" >&2
        exit 1
    fi
    grep -Fq "$expected" "$output_dir/cnc_sim_linuxcnc_$fixture.err"
done
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_coordinate_offsets.ngc >"$output_dir/cnc_sim_linuxcnc_coordinate_offsets.json"
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_coordinate_l20.ngc >"$output_dir/cnc_sim_linuxcnc_coordinate_l20.json"
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_coordinate_p0.ngc >"$output_dir/cnc_sim_linuxcnc_coordinate_p0.json"
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_coordinate_select_all.ngc >"$output_dir/cnc_sim_linuxcnc_coordinate_select_all.json"
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_g92_restore.ngc >"$output_dir/cnc_sim_linuxcnc_g92_restore.json"
cp "$base_var_file" "$var_file"
CNC_SIM_RS274_VAR="$var_file" "$build_dir/linuxcnc_rs274_dump" tests/gcode/linuxcnc_g52_offset.ngc >"$output_dir/cnc_sim_linuxcnc_g52_offset.json"
CNC_SIM_RS274_NATIVE_OUTPUT_DIR="$output_dir" python3 - <<'PY'
import json
import os
from pathlib import Path

OUTPUT_DIR = Path(os.environ["CNC_SIM_RS274_NATIVE_OUTPUT_DIR"])

def check(path, required):
    events = json.loads(Path(path).read_text())
    types = [event["type"] for event in events]
    missing = sorted(required - set(types))
    if missing:
        raise SystemExit(f"{path}: missing events: {', '.join(missing)}")
    final_motion = [event for event in events if event["type"] in {"rapid", "linear-feed", "arc-feed"}][-1]
    if final_motion["end"]["x"] != 0 or final_motion["end"]["y"] != 0:
        raise SystemExit(f"{path}: unexpected final XY position")
    return events

def load(name):
    return json.loads((OUTPUT_DIR / name).read_text())

required_motion = {"set-units", "set-plane", "set-spindle", "rapid", "set-feed", "linear-feed", "arc-feed", "dwell", "program-end"}
check(OUTPUT_DIR / "cnc_sim_linuxcnc_basic_motion.json", required_motion)
check(OUTPUT_DIR / "cnc_sim_linuxcnc_basic_mill.json", required_motion | {"tool-change"})

controls = load("cnc_sim_linuxcnc_rtcp_controls.json")
kin = [event for event in controls if event["type"] == "kinematics-switch"]
if [event["reserved"] for event in kin] != [1, 0, 2]:
    raise SystemExit("unexpected kinematics switch sequence")
rtcp = [event for event in controls if event["type"] == "rtcp-state"]
if [(event["line"], event["tool"], event["feed"]) for event in rtcp] != [(3, 0, 0), (4, 7, 1)]:
    raise SystemExit("unexpected RTCP state sequence")

spindle = load("cnc_sim_linuxcnc_spindle_direction.json")
spindle_states = [
    (event["line"], event["spindle"], event["reserved"])
    for event in spindle
    if event["type"] == "set-spindle"
]
if (2, 1200, 1) not in spindle_states:
    raise SystemExit("missing M3 clockwise spindle state")
if (3, 1200, 2) not in spindle_states:
    raise SystemExit("missing M4 counterclockwise spindle state")
if (4, 0, 0) not in spindle_states:
    raise SystemExit("missing M5 stopped spindle state")

spindle_modes = load("cnc_sim_linuxcnc_spindle_modes.json")
spindle_mode_states = [
    (event["line"], event["reserved"], event["feed"], event["tool"])
    for event in spindle_modes
    if event["type"] == "comment" and event["line"] in {2, 3, 4} and event["reserved"] in {960, 970}
]
expected_spindle_mode_states = [
    (2, 970, 0, 0),
    (3, 960, 2500, 0),
    (4, 970, 0, 0),
]
if spindle_mode_states != expected_spindle_mode_states:
    raise SystemExit(f"unexpected G96/G97 spindle mode states: {spindle_mode_states!r}")

spindle_orient = load("cnc_sim_linuxcnc_spindle_orient.json")
if not any(
    event["type"] == "comment" and
    event["line"] == 2 and
    event["reserved"] == 1901 and
    event["tool"] == 0 and
    event["feed"] == 45 and
    event["arcTurns"] == 1
    for event in spindle_orient
):
    raise SystemExit("missing M19 spindle orient state")
if not any(
    event["type"] == "comment" and
    event["line"] == 2 and
    event["reserved"] == 1902 and
    event["tool"] == 0 and
    event["dwellSeconds"] == 2
    for event in spindle_orient
):
    raise SystemExit("missing M19 spindle orient wait state")

io_controls = load("cnc_sim_linuxcnc_io_controls.json")
io_states = [
    (event["line"], event["reserved"], event["tool"], event["feed"], event["arcTurns"], event["dwellSeconds"])
    for event in io_controls
    if event["type"] == "comment" and event["reserved"] in {62, 63, 64, 65, 66, 67, 68}
]
expected_io_states = [
    (2, 62, 1, 1, 0, 0),
    (3, 63, 1, 0, 0, 0),
    (4, 64, 2, 1, 0, 0),
    (5, 65, 2, 0, 0, 0),
    (6, 66, 0, 3, 1, 5),
    (7, 66, 1, 0, 0, 0),
    (8, 67, 0, 1.25, 0, 0),
    (9, 68, 1, 2.5, 0, 0),
]
if io_states != expected_io_states:
    raise SystemExit(f"unexpected M62-M68 I/O states: {io_states!r}")

override_controls = load("cnc_sim_linuxcnc_override_controls.json")
override_states = [
    (event["line"], event["reserved"], event["tool"], event["feed"])
    for event in override_controls
    if event["type"] == "comment" and event["reserved"] in {50, 51, 52, 53}
]
expected_override_states = [
    (2, 50, 0, 1),
    (2, 51, 0, 1),
    (3, 50, 0, 0),
    (3, 51, 0, 0),
    (4, 50, 0, 1),
    (5, 50, 0, 0),
    (6, 51, 0, 1),
    (7, 51, 0, 0),
    (8, 52, 0, 1),
    (9, 52, 0, 0),
    (10, 53, 0, 1),
    (11, 53, 0, 0),
    (12, 50, 0, 1),
]
if override_states != expected_override_states:
    raise SystemExit(f"unexpected M48-M53 override states: {override_states!r}")

modal_state = load("cnc_sim_linuxcnc_modal_state.json")
if not any(
    event["type"] == "rapid" and
    event["line"] == 7 and
    event["end"]["x"] == 2 and
    event["end"]["y"] == 0 and
    event["end"]["z"] == 2
    for event in modal_state
):
    raise SystemExit("missing M72 restored absolute millimeter move")
if not any(
    event["type"] == "arc-feed" and
    event["line"] == 8 and
    event["plane"] == 17 and
    event["end"]["x"] == 4 and
    event["end"]["y"] == 0
    for event in modal_state
):
    raise SystemExit("missing M72 restored XY plane arc")

modal_autorestore = load("cnc_sim_linuxcnc_modal_autorestore.json")
if not any(
    event["type"] == "rapid" and
    event["line"] == 9 and
    event["end"]["x"] == 10
    for event in modal_autorestore
):
    raise SystemExit("missing M73 subroutine changed modal state move")
if not any(
    event["type"] == "rapid" and
    event["line"] == 4 and
    event["start"]["x"] == 10 and
    event["end"]["x"] == 12
    for event in modal_autorestore
):
    raise SystemExit("missing M73 autorestored incremental caller move")

threading_sync = load("cnc_sim_linuxcnc_threading_sync.json")
sync_states = [
    (event["line"], event["reserved"], event["feed"], event["tool"])
    for event in threading_sync
    if event["type"] == "comment" and event["reserved"] in {3300, 3301, 3302}
]
expected_sync_states = [
    (4, 3301, 1, 0),
    (4, 3300, 0, 0),
    (6, 3301, 1, 0),
    (6, 3300, 0, 0),
]
if sync_states != expected_sync_states:
    raise SystemExit(f"unexpected G33/G33.1 sync states: {sync_states!r}")
if not any(
    event["type"] == "linear-feed" and event["line"] == 6 and event["end"]["z"] == 0
    for event in threading_sync
):
    raise SystemExit("missing G33.1 rigid tap motion line")

threading_cycle = load("cnc_sim_linuxcnc_threading_cycle.json")
if not any(
    event["type"] == "comment" and
    event["line"] == 4 and
    event["reserved"] == 3301 and
    event["feed"] == 0.05
    for event in threading_cycle
):
    raise SystemExit("missing G76 threading sync start")
if not any(event["type"] == "comment" and event["line"] == 4 and event["reserved"] == 3300 for event in threading_cycle):
    raise SystemExit("missing G76 threading sync stop")
if not any(
    event["type"] == "linear-feed" and event["line"] == 4 and event["end"]["z"] == -1
    for event in threading_cycle
):
    raise SystemExit("missing G76 final threading pass")
if not any(event["type"] == "program-end" and event["line"] == 5 for event in threading_cycle):
    raise SystemExit("missing G76 program end line number")

lathe_diameter_mode = load("cnc_sim_linuxcnc_lathe_diameter_mode.json")
lathe_feeds = [
    (event["line"], event["end"]["x"], event["end"]["y"])
    for event in lathe_diameter_mode
    if event["type"] == "linear-feed"
]
expected_lathe_feeds = [
    (3, 5, 0),
    (5, 5, 1),
    (7, 6, 1),
    (9, 6, 2),
]
if lathe_feeds != expected_lathe_feeds:
    raise SystemExit(f"unexpected G7/G8 lathe diameter-mode feeds: {lathe_feeds!r}")

lathe_g76 = load("cnc_sim_linuxcnc_lathe_diameter_g76.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 4 and
    abs(event["end"]["x"] - 0.98125) < 1e-9 and
    event["end"]["z"] == -1
    for event in lathe_g76
):
    raise SystemExit("missing G7 diameter-mode G76 final threading pass")
if not any(
    event["type"] == "comment" and
    event["line"] == 4 and
    event["reserved"] == 3301 and
    abs(event["feed"] - 0.0515388) < 1e-7
    for event in lathe_g76
):
    raise SystemExit("missing G7 diameter-mode G76 taper sync pitch")

tool_number = load("cnc_sim_linuxcnc_tool_number.json")
if not any(
    event["type"] == "tool-change" and
    event["line"] == 2 and
    event["tool"] == 1
    for event in tool_number
):
    raise SystemExit("missing M61 Q1 tool-number event line")

stops = load("cnc_sim_linuxcnc_program_stops.json")
stop_states = [
    (event["line"], event["reserved"])
    for event in stops
    if event["type"] == "program-end"
]
for expected in [(2, 1), (3, 2), (4, 3), (4, 1), (5, 0)]:
    if expected not in stop_states:
        raise SystemExit(f"missing program stop state {expected!r}")

coolant = load("cnc_sim_linuxcnc_coolant.json")
coolant_states = [
    (event["line"], event["reserved"])
    for event in coolant
    if event["type"] == "comment"
]
for expected in [(2, 11), (3, 21), (4, 10), (4, 20)]:
    if expected not in coolant_states:
        raise SystemExit(f"missing coolant state {expected!r}")

feed_modes = load("cnc_sim_linuxcnc_feed_modes.json")
feed_mode_comments = [
    (event["line"], event["reserved"])
    for event in feed_modes
    if event["type"] == "comment"
]
for expected in [(2, 93), (3, 94), (4, 95)]:
    if expected not in feed_mode_comments:
        raise SystemExit(f"missing feed mode comment state {expected!r}")
feed_mode_events = [
    (event["line"], event["reserved"])
    for event in feed_modes
    if event["type"] == "set-feed"
]
for expected in [(3, 0), (4, 0)]:
    if expected not in feed_mode_events:
        raise SystemExit(f"missing feed mode event {expected!r}")

motion_modes = load("cnc_sim_linuxcnc_motion_modes.json")
motion_mode_states = [
    (event["line"], event["reserved"], event["feed"])
    for event in motion_modes
    if event["type"] == "comment"
]
for expected in [(2, 611, 0), (3, 612, 0), (4, 640, 0.05)]:
    if expected not in motion_mode_states:
        raise SystemExit(f"missing motion mode state {expected!r}")

tool_length = load("cnc_sim_linuxcnc_tool_length.json")
if not any(
    event["type"] == "comment" and
    event["line"] == 2 and
    event["reserved"] == 430 and
    event["start"]["z"] == 12.5
    for event in tool_length
):
    raise SystemExit("missing G43 H1 tool length offset event")
if not any(
    event["type"] == "comment" and
    event["line"] == 3 and
    event["reserved"] == 430 and
    event["start"]["z"] == 0
    for event in tool_length
):
    raise SystemExit("missing G49 tool length clear event")

dynamic_tool_length = load("cnc_sim_linuxcnc_dynamic_tool_length.json")
dynamic_offsets = [
    (event["line"], event["start"]["x"], event["start"]["z"])
    for event in dynamic_tool_length
    if event["type"] == "comment" and event["reserved"] == 430
]
expected_dynamic_offsets = [(2, 1, 2), (3, 1.25, 2.5), (4, 1.25, 15), (5, 0, 0)]
if dynamic_offsets != expected_dynamic_offsets:
    raise SystemExit(f"unexpected G43.1/G43.2 tool length offsets: {dynamic_offsets!r}")

cycle = load("cnc_sim_linuxcnc_canned_cycle.json")
motions = [event for event in cycle if event["type"] in {"rapid", "linear-feed"}]
expected_cycle = [
    ("rapid", 0, 0, 5),
    ("rapid", 20, 0, 5),
    ("rapid", 20, 0, 3),
    ("linear-feed", 20, 0, -2),
    ("rapid", 20, 0, 3),
]
actual_cycle = [(event["type"], event["end"]["x"], event["end"]["y"], event["end"]["z"]) for event in motions]
if actual_cycle != expected_cycle:
    raise SystemExit(f"unexpected G81/G80 expansion: {actual_cycle!r}")

cycle_planes = load("cnc_sim_linuxcnc_canned_cycle_planes.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 4 and
    event["end"]["x"] == 1 and
    event["end"]["y"] == -2 and
    event["end"]["z"] == 4
    for event in cycle_planes
):
    raise SystemExit("missing G18 G81 feed along Y depth axis")
if not any(
    event["type"] == "rapid" and
    event["line"] == 4 and
    event["end"]["x"] == 1 and
    event["end"]["y"] == 3 and
    event["end"]["z"] == 4
    for event in cycle_planes
):
    raise SystemExit("missing G18 G81 retract to Y R plane")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 7 and
    event["end"]["x"] == -2 and
    event["end"]["y"] == 3 and
    event["end"]["z"] == 4
    for event in cycle_planes
):
    raise SystemExit("missing G19 G82 feed along X depth axis")
if not any(
    event["type"] == "dwell" and
    event["line"] == 7 and
    event["dwellSeconds"] == 0.2
    for event in cycle_planes
):
    raise SystemExit("missing G19 G82 dwell at bottom")
if not any(
    event["type"] == "rapid" and
    event["line"] == 7 and
    event["end"]["x"] == 2 and
    event["end"]["y"] == 3 and
    event["end"]["z"] == 4
    for event in cycle_planes
):
    raise SystemExit("missing G19 G82 retract to X R plane")
def plane_cycle_signature(event):
    if event["type"] in {"rapid", "linear-feed"}:
        return (event["type"], event["end"]["x"], event["end"]["y"], event["end"]["z"])
    if event["type"] == "set-spindle":
        return ("set-spindle", event["spindle"], event["reserved"])
    if event["type"] == "dwell":
        return ("dwell", event["dwellSeconds"])
    if event["type"] == "program-end":
        return ("program-end", event["reserved"])
    return None
plane_g84_sequence = [
    plane_cycle_signature(event)
    for event in cycle_planes
    if event["line"] == 11 and event["type"] in {"rapid", "linear-feed", "set-spindle", "dwell"}
]
expected_plane_g84_sequence = [
    ("rapid", 1, 5, 4),
    ("rapid", 1, 3, 4),
    ("linear-feed", -2, 4, 1),
    ("set-spindle", 0, 0),
    ("set-spindle", 600, 2),
    ("dwell", 0.05),
    ("linear-feed", 3, 4, 1),
    ("set-spindle", 0, 0),
    ("set-spindle", 600, 1),
]
if plane_g84_sequence != expected_plane_g84_sequence:
    raise SystemExit(f"unexpected G18 G84 plane sequence: {plane_g84_sequence!r}")
plane_g74_sequence = [
    plane_cycle_signature(event)
    for event in cycle_planes
    if event["line"] == 15 and event["type"] in {"rapid", "linear-feed", "set-spindle", "dwell"}
]
expected_plane_g74_sequence = [
    ("rapid", 5, 3, 4),
    ("rapid", 2, 3, 4),
    ("linear-feed", 4, -2, 3),
    ("set-spindle", 0, 0),
    ("set-spindle", 500, 1),
    ("dwell", 0.04),
    ("linear-feed", 4, 2, 3),
    ("set-spindle", 0, 0),
    ("set-spindle", 500, 2),
]
if plane_g74_sequence != expected_plane_g74_sequence:
    raise SystemExit(f"unexpected G19 G74 plane sequence: {plane_g74_sequence!r}")
plane_g86_sequence = [
    plane_cycle_signature(event)
    for event in cycle_planes
    if event["line"] == 19 and event["type"] in {"rapid", "linear-feed", "set-spindle", "dwell"}
]
expected_plane_g86_sequence = [
    ("rapid", 1, 5, 4),
    ("rapid", 1, 3, 4),
    ("linear-feed", 1, -2, 4),
    ("dwell", 0.1),
    ("set-spindle", 0, 0),
    ("rapid", 1, 3, 4),
    ("set-spindle", 900, 1),
]
if plane_g86_sequence != expected_plane_g86_sequence:
    raise SystemExit(f"unexpected G18 G86 plane sequence: {plane_g86_sequence!r}")
plane_g88_sequence = [
    plane_cycle_signature(event)
    for event in cycle_planes
    if event["line"] == 23 and event["type"] in {"rapid", "linear-feed", "set-spindle", "dwell", "program-end"}
]
expected_plane_g88_sequence = [
    ("rapid", 5, 3, 4),
    ("rapid", 2, 3, 4),
    ("linear-feed", -2, 3, 4),
    ("dwell", 0.07),
    ("set-spindle", 0, 0),
    ("program-end", 1),
    ("set-spindle", 700, 1),
]
if plane_g88_sequence != expected_plane_g88_sequence:
    raise SystemExit(f"unexpected G19 G88 plane sequence: {plane_g88_sequence!r}")
plane_g87_sequence = [
    plane_cycle_signature(event)
    for event in cycle_planes
    if event["line"] == 27 and event["type"] in {"rapid", "linear-feed", "set-spindle"}
]
expected_plane_g87_sequence = [
    ("rapid", 5, 1, 2),
    ("rapid", 2, 1, 2),
    ("rapid", 2, 1.2, 2.3),
    ("set-spindle", 0, 0),
    ("rapid", -4, 1.2, 2.3),
    ("rapid", -4, 1, 2),
    ("set-spindle", 800, 1),
    ("linear-feed", -2, 1, 2),
    ("linear-feed", -4, 1, 2),
    ("set-spindle", 0, 0),
    ("rapid", -4, 1.2, 2.3),
    ("rapid", 2, 1.2, 2.3),
    ("rapid", 2, 1, 2),
    ("set-spindle", 800, 1),
]
if plane_g87_sequence != expected_plane_g87_sequence:
    raise SystemExit(f"unexpected G19 G87 plane sequence: {plane_g87_sequence!r}")

extended_cycle = load("cnc_sim_linuxcnc_canned_cycles_extended.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 3 and
    event["end"]["x"] == 10 and
    event["end"]["z"] == -2
    for event in extended_cycle
):
    raise SystemExit("missing G82 feed to bottom")
if not any(
    event["type"] == "dwell" and
    event["line"] == 3 and
    event["dwellSeconds"] == 0.25
    for event in extended_cycle
):
    raise SystemExit("missing G82 dwell at bottom")
g83_feed_depths = [
    event["end"]["z"]
    for event in extended_cycle
    if event["type"] == "linear-feed" and event["line"] == 4
]
if g83_feed_depths != [1, 0, -1, -2, -3]:
    raise SystemExit(f"unexpected G83 peck depths: {g83_feed_depths!r}")
if not any(
    event["type"] == "rapid" and
    event["line"] == 4 and
    event["end"]["x"] == 20 and
    event["end"]["z"] == 2
    for event in extended_cycle
):
    raise SystemExit("missing G83 final retract to R plane")
def g84_signature(event):
    if event["type"] == "linear-feed":
        return ("linear-feed", event["end"]["x"], event["end"]["z"])
    if event["type"] == "set-spindle":
        return ("set-spindle", event["spindle"], event["reserved"])
    if event["type"] == "dwell":
        return ("dwell", event["dwellSeconds"])
    if event["type"] == "program-end":
        return ("program-end", event["reserved"])
    return None
g84_sequence = [
    g84_signature(event)
    for event in extended_cycle
    if event["line"] == 7 and event["type"] in {"linear-feed", "set-spindle", "dwell"}
]
expected_g84_sequence = [
    ("linear-feed", 30, -2),
    ("set-spindle", 0, 0),
    ("set-spindle", 600, 2),
    ("dwell", 0.05),
    ("linear-feed", 30, 2),
    ("set-spindle", 0, 0),
    ("set-spindle", 600, 1),
]
if g84_sequence != expected_g84_sequence:
    raise SystemExit(f"unexpected G84 tapping sequence: {g84_sequence!r}")
g74_sequence = [
    g84_signature(event)
    for event in extended_cycle
    if event["line"] == 9 and event["type"] in {"linear-feed", "set-spindle", "dwell"}
]
expected_g74_sequence = [
    ("linear-feed", 40, -2),
    ("set-spindle", 0, 0),
    ("set-spindle", 500, 1),
    ("dwell", 0.04),
    ("linear-feed", 40, 2),
    ("set-spindle", 0, 0),
    ("set-spindle", 500, 2),
]
if g74_sequence != expected_g74_sequence:
    raise SystemExit(f"unexpected G74 tapping sequence: {g74_sequence!r}")
g88_sequence = [
    g84_signature(event)
    for event in extended_cycle
    if event["line"] == 11 and event["type"] in {"linear-feed", "set-spindle", "dwell", "program-end"}
]
expected_g88_sequence = [
    ("linear-feed", 50, -2),
    ("dwell", 0.07),
    ("set-spindle", 0, 0),
    ("program-end", 1),
    ("set-spindle", 700, 1),
]
if g88_sequence != expected_g88_sequence:
    raise SystemExit(f"unexpected G88 manual-out sequence: {g88_sequence!r}")
if any(
    event["type"] == "rapid" and
    event["line"] == 11 and
    event["start"]["x"] == 50 and
    event["start"]["z"] == -2 and
    event["end"]["x"] == 50 and
    event["end"]["z"] == 2
    for event in extended_cycle
):
    raise SystemExit("unexpected G88 automatic retract")
def g87_signature(event):
    if event["type"] in {"rapid", "linear-feed"}:
        return (event["type"], event["end"]["x"], event["end"]["y"], event["end"]["z"])
    if event["type"] == "set-spindle":
        return ("set-spindle", event["spindle"], event["reserved"])
    return None
g87_sequence = [
    g87_signature(event)
    for event in extended_cycle
    if event["line"] == 14 and event["type"] in {"rapid", "linear-feed", "set-spindle"}
]
expected_g87_sequence = [
    ("rapid", 60, 0, 5),
    ("rapid", 60, 0, 2),
    ("rapid", 60.2, 0.3, 2),
    ("set-spindle", 0, 0),
    ("rapid", 60.2, 0.3, -4),
    ("rapid", 60, 0, -4),
    ("set-spindle", 800, 1),
    ("linear-feed", 60, 0, -2),
    ("linear-feed", 60, 0, -4),
    ("set-spindle", 0, 0),
    ("rapid", 60.2, 0.3, -4),
    ("rapid", 60.2, 0.3, 2),
    ("rapid", 60, 0, 2),
    ("set-spindle", 800, 1),
]
if g87_sequence != expected_g87_sequence:
    raise SystemExit(f"unexpected G87 back-boring sequence: {g87_sequence!r}")

arc_planes = load("cnc_sim_linuxcnc_arc_planes.json")
if not any(
    event["type"] == "arc-feed" and
    event["line"] == 5 and
    event["plane"] == 18 and
    event["start"]["x"] == 0 and
    event["start"]["z"] == 0 and
    event["end"]["x"] == 10 and
    event["end"]["z"] == 0 and
    event["center"]["x"] == 5 and
    event["center"]["z"] == 0 and
    event["arcTurns"] == -1
    for event in arc_planes
):
    raise SystemExit("missing G18 XZ plane arc-feed mapping")
if not any(
    event["type"] == "arc-feed" and
    event["line"] == 8 and
    event["plane"] == 19 and
    event["start"]["y"] == 0 and
    event["start"]["z"] == 0 and
    event["end"]["y"] == 10 and
    event["end"]["z"] == 0 and
    event["center"]["y"] == 5 and
    event["center"]["z"] == 0 and
    event["arcTurns"] == 1
    for event in arc_planes
):
    raise SystemExit("missing G19 YZ plane arc-feed mapping")

arc_distance = load("cnc_sim_linuxcnc_arc_distance_modes.json")
arc_centers = [
    (event["line"], event["center"]["x"], event["center"]["y"])
    for event in arc_distance
    if event["type"] == "arc-feed"
]
expected_arc_centers = [(5, 5, 0), (7, 15, 0), (9, 25, 0)]
if arc_centers != expected_arc_centers:
    raise SystemExit(f"unexpected G90.1/G91.1 arc centers: {arc_centers!r}")

incremental_r_arc = load("cnc_sim_linuxcnc_incremental_and_r_arc.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 4 and
    event["start"]["x"] == 0 and
    event["end"]["x"] == 10
    for event in incremental_r_arc
):
    raise SystemExit("missing LinuxCNC G91 incremental X feed move")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 5 and
    event["start"]["y"] == 0 and
    event["end"]["y"] == 10
    for event in incremental_r_arc
):
    raise SystemExit("missing LinuxCNC modal incremental Y feed move")
if not any(
    event["type"] == "arc-feed" and
    event["line"] == 7 and
    event["start"]["x"] == 10 and
    event["start"]["y"] == 10 and
    event["end"]["x"] == 20 and
    event["end"]["y"] == 10 and
    event["center"]["x"] == 15 and
    event["center"]["y"] == 10 and
    event["arcTurns"] == -1
    for event in incremental_r_arc
):
    raise SystemExit("missing LinuxCNC absolute R-format clockwise arc")

predefined = load("cnc_sim_linuxcnc_predefined_positions.json")
predefined_rapids = [
    (
        event["line"],
        event["start"]["x"], event["start"]["y"], event["start"]["z"],
        event["end"]["x"], event["end"]["y"], event["end"]["z"],
    )
    for event in predefined
    if event["type"] == "rapid" and event["line"] in {5, 9}
]
expected_predefined_rapids = [
    (5, 10, 20, 30, 10, 20, 5),
    (5, 10, 20, 5, 10, 20, 3),
    (9, 40, 50, 60, 40, 50, 60),
    (9, 40, 50, 60, 4, 5, 6),
]
if predefined_rapids != expected_predefined_rapids:
    raise SystemExit(f"unexpected G28/G30 rapid sequence: {predefined_rapids!r}")

machine_coords = load("cnc_sim_linuxcnc_machine_coordinates.json")
machine_moves = [
    (
        event["type"], event["line"],
        event["start"]["x"], event["start"]["y"], event["start"]["z"],
        event["end"]["x"], event["end"]["y"], event["end"]["z"],
    )
    for event in machine_coords
    if event["type"] in {"rapid", "linear-feed"} and event["line"] in {3, 4, 6}
]
expected_machine_moves = [
    ("rapid", 3, 5, 6, 7, 0, 6, 1),
    ("rapid", 4, 0, 6, 1, 2, 6, 1),
    ("linear-feed", 6, 2, 6, 1, 2, 3, 1),
]
if machine_moves != expected_machine_moves:
    raise SystemExit(f"unexpected G53 machine-coordinate moves: {machine_moves!r}")

cutter_comp = load("cnc_sim_linuxcnc_cutter_comp.json")
cutter_comp_motions = [
    event
    for event in cutter_comp
    if event["type"] in {"rapid", "linear-feed", "arc-feed"}
]
expected_cutter_comp = [
    ("rapid", 2, 0, 0),
    ("linear-feed", 6, 17, 3),
    ("linear-feed", 7, 17, 20),
    ("linear-feed", 8, 0, 0),
    ("linear-feed", 11, 17, -3),
    ("linear-feed", 12, 17, -20),
    ("linear-feed", 13, 0, 0),
    ("linear-feed", 16, 17, 3),
    ("linear-feed", 17, 17, 20),
    ("linear-feed", 18, 0, 0),
    ("linear-feed", 21, 17, -3),
    ("linear-feed", 22, 17, -20),
    ("linear-feed", 23, 0, 0),
]
actual_cutter_comp = [
    (event["type"], event["line"], event["end"]["x"], event["end"]["y"])
    for event in cutter_comp_motions
]
if actual_cutter_comp != expected_cutter_comp:
    raise SystemExit(f"unexpected cutter compensation path: {actual_cutter_comp!r}")

comments = load("cnc_sim_linuxcnc_comments.json")
if not any(event["type"] == "comment" and event["line"] == 2 for event in comments):
    raise SystemExit("missing LinuxCNC comment line event")

probe = load("cnc_sim_linuxcnc_probe_no_error.json")
probe_events = [
    (event["line"], event["reserved"], event["start"]["z"], event["end"]["z"])
    for event in probe
    if event["type"] == "probe"
]
expected_probe_events = [
    (4, 0, 5, 4),
    (6, 1, 5, 3),
    (8, 2, 5, 2),
    (10, 3, 5, 1),
    (12, 1, 5, 0),
]
if probe_events != expected_probe_events:
    raise SystemExit(f"unexpected G38 probe variants: {probe_events!r}")
if any(event["type"] == "linear-feed" and event["line"] in {4, 6, 8, 10, 12} for event in probe):
    raise SystemExit("G38 probe moves should not be emitted as linear-feed")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 14 and
    event["end"]["x"] == 1
    for event in probe
):
    raise SystemExit("missing #5070 probe-tripped conditional motion")

oword = load("cnc_sim_linuxcnc_oword_subprogram.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 8 and
    event["start"]["x"] == 0 and
    event["end"]["x"] == 7
    for event in oword
):
    raise SystemExit("missing LinuxCNC O-word expression motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 9 and
    event["start"]["y"] == 0 and
    event["end"]["y"] == 2
    for event in oword
):
    raise SystemExit("missing LinuxCNC O-word #2 argument motion")
if any(
    event["type"] == "linear-feed" and
    event["line"] == 11 and
    event["end"]["x"] == 99
    for event in oword
):
    raise SystemExit("LinuxCNC O-word return should skip remaining subprogram body")

m98_subprogram = load("cnc_sim_linuxcnc_m98_subprogram.json")
m98_sub_moves = [
    (event["line"], event["start"]["x"], event["end"]["x"])
    for event in m98_subprogram
    if event["type"] == "linear-feed" and event["line"] == 8
]
if m98_sub_moves != [(8, 0, 5), (8, 5, 10)]:
    raise SystemExit(f"unexpected LinuxCNC M98 repeated subprogram moves: {m98_sub_moves!r}")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 5 and
    event["start"]["x"] == 10 and
    event["end"]["x"] == 20
    for event in m98_subprogram
):
    raise SystemExit("missing LinuxCNC M98 return-to-caller motion")

named_oword = load("cnc_sim_linuxcnc_named_oword_subprogram.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 9 and
    event["start"]["x"] == 0 and
    event["end"]["x"] == 10
    for event in named_oword
):
    raise SystemExit("missing LinuxCNC named O-word expression motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 10 and
    event["start"]["y"] == 0 and
    event["end"]["y"] == 6
    for event in named_oword
):
    raise SystemExit("missing LinuxCNC named O-word #2 argument motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 5 and
    event["start"]["x"] == 10 and
    event["end"]["x"] == 20
    for event in named_oword
):
    raise SystemExit("missing LinuxCNC named O-word return-to-caller motion")
if any(
    event["type"] == "linear-feed" and
    event["line"] == 12 and
    event["end"]["x"] == 99
    for event in named_oword
):
    raise SystemExit("LinuxCNC named O-word return should skip remaining subprogram body")

value_returned = load("cnc_sim_linuxcnc_value_returned.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 11 and
    event["end"]["x"] == 1
    for event in value_returned
):
    raise SystemExit("missing LinuxCNC initial #<_value_returned> clear branch motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 15 and
    event["end"]["y"] == 1
    for event in value_returned
):
    raise SystemExit("missing LinuxCNC #<_value_returned> endsub[value] branch motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 19 and
    event["end"]["z"] == 1
    for event in value_returned
):
    raise SystemExit("missing LinuxCNC #<_value_returned> cleared-procedure branch motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 23 and
    event["end"]["a"] == 1
    for event in value_returned
):
    raise SystemExit("missing LinuxCNC #<_value_returned> return[value] branch motion")

call_level = load("cnc_sim_linuxcnc_call_level.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 15 and
    event["end"]["x"] == 1
    for event in call_level
):
    raise SystemExit("missing LinuxCNC main-program #<_call_level> branch motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 8 and
    event["end"]["y"] == 1
    for event in call_level
):
    raise SystemExit("missing LinuxCNC outer O-word #<_call_level> branch motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 3 and
    event["end"]["z"] == 1
    for event in call_level
):
    raise SystemExit("missing LinuxCNC inner O-word #<_call_level>/#<_remap_level> branch motion")

exists_word_value = load("cnc_sim_linuxcnc_exists_word_value.json")
if not any(
    event["type"] == "rapid" and
    event["line"] == 2 and
    event["end"]["x"] == 1 and
    event["end"]["y"] == 0 and
    event["end"]["z"] == 1 and
    event["end"]["a"] == 0
    for event in exists_word_value
):
    raise SystemExit("missing LinuxCNC direct EXISTS word-value motion")
if not any(
    event["type"] == "rapid" and
    event["line"] == 5 and
    event["end"]["x"] == 1 and
    event["end"]["y"] == 0 and
    event["end"]["z"] == 0
    for event in exists_word_value
):
    raise SystemExit("missing LinuxCNC indirect EXISTS word-value motion")

lowercase_numeric_oword = load("cnc_sim_linuxcnc_lowercase_numeric_oword.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 9 and
    event["end"]["x"] == 6
    for event in lowercase_numeric_oword
):
    raise SystemExit("missing LinuxCNC lowercase numeric O-word return[value] motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 11 and
    event["end"]["y"] == 7
    for event in lowercase_numeric_oword
):
    raise SystemExit("missing LinuxCNC lowercase numeric O-word endsub[value] motion")

m98_mixed_styles = load("cnc_sim_linuxcnc_m98_mixed_styles_variables.json")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 5 and
    event["end"]["x"] == 13.01 and
    event["end"]["y"] == 13.3 and
    event["end"]["z"] == 13.31
    for event in m98_mixed_styles
):
    raise SystemExit("missing LinuxCNC M98 mixed-style global-parameter motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 10 and
    event["end"]["a"] == 42.01 and
    event["end"]["b"] == 42.3 and
    event["end"]["c"] == 13.31
    for event in m98_mixed_styles
):
    raise SystemExit("missing LinuxCNC O-word mixed-style local-parameter motion")

oword_flow = load("cnc_sim_linuxcnc_oword_control_flow.json")
if not any(event["type"] == "linear-feed" and event["line"] == 7 and event["end"]["x"] == 2 for event in oword_flow):
    raise SystemExit("missing LinuxCNC O-word elseif branch motion")
if any(
    event["type"] == "linear-feed" and event["line"] in {5, 9} and event["end"]["x"] in {98, 99}
    for event in oword_flow
):
    raise SystemExit("LinuxCNC O-word conditional should skip inactive branches")
while_values = [
    event["end"]["y"]
    for event in oword_flow
    if event["type"] == "linear-feed" and event["line"] == 13
]
if while_values != [0, 1, 2]:
    raise SystemExit(f"unexpected LinuxCNC O-word while values: {while_values!r}")
repeat_values = [
    event["end"]["z"]
    for event in oword_flow
    if event["type"] == "linear-feed" and event["line"] == 19
]
if repeat_values != [1, 2, 3]:
    raise SystemExit(f"unexpected LinuxCNC O-word repeat values: {repeat_values!r}")
do_values = [
    event["end"]["a"]
    for event in oword_flow
    if event["type"] == "linear-feed" and event["line"] == 24
]
if do_values != [1, 2, 3]:
    raise SystemExit(f"unexpected LinuxCNC O-word do/while values: {do_values!r}")
break_values = [
    event["end"]["b"]
    for event in oword_flow
    if event["type"] == "linear-feed" and event["line"] == 32
]
if break_values != [1]:
    raise SystemExit(f"unexpected LinuxCNC O-word do/break body values: {break_values!r}")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 34 and
    event["end"]["c"] == 2
    for event in oword_flow
):
    raise SystemExit("missing LinuxCNC O-word do/break final loop counter motion")
continue_values = [
    event["end"]["u"]
    for event in oword_flow
    if event["type"] == "linear-feed" and event["line"] == 43
]
if continue_values != [2, 3]:
    raise SystemExit(f"unexpected LinuxCNC O-word do/continue body values: {continue_values!r}")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 45 and
    event["end"]["v"] == 3
    for event in oword_flow
):
    raise SystemExit("missing LinuxCNC O-word do/continue final loop counter motion")
if not any(
    event["type"] == "linear-feed" and
    event["line"] == 46 and
    event["end"]["w"] == 2
    for event in oword_flow
):
    raise SystemExit("missing LinuxCNC O-word do/continue skipped-body counter motion")

exists = load("cnc_sim_linuxcnc_named_parameter_exists.json")
exists_moves = [
    (event["line"], event["end"]["x"], event["end"]["y"])
    for event in exists
    if event["type"] == "linear-feed"
]
expected_exists_moves = [(5, 1, 0), (8, 1, 1)]
if exists_moves != expected_exists_moves:
    raise SystemExit(f"unexpected LinuxCNC EXISTS named parameter branch motions: {exists_moves!r}")

indexed = load("cnc_sim_linuxcnc_indexed_parameters.json")
indexed_moves = [
    (
        event["line"],
        event["end"]["x"], event["end"]["y"], event["end"]["z"],
        event["end"]["a"], event["end"]["b"], event["end"]["c"],
        event["end"]["u"], event["end"]["v"], event["end"]["w"],
    )
    for event in indexed
    if event["type"] == "linear-feed"
]
expected_indexed_moves = [
    (7, 17, 0, 0, 0, 0, 0, 0, 0, 0),
    (8, 17, 22, 0, 0, 0, 0, 0, 0, 0),
    (10, 17, 22, 1, 0, 0, 0, 0, 0, 0),
    (13, 17, 22, 1, 21, 0, 0, 0, 0, 0),
    (14, 17, 22, 1, 21, 9, 0, 0, 0, 0),
    (16, 17, 22, 1, 21, 9, 9, 2, 0, 0),
    (17, 17, 22, 1, 21, 9, 9, 2, 4, 9),
    (18, 4, 22, 1, 21, 9, 9, 2, 4, 9),
    (19, 4, 12, 4, 21, 9, 9, 2, 4, 9),
    (20, 4, 12, 4, 12, 9, 9, 2, 4, 9),
    (21, 4, 12, 4, 12, 14, 9, 2, 4, 9),
]
if indexed_moves != expected_indexed_moves:
    raise SystemExit(f"unexpected LinuxCNC indexed/indirect parameter motions: {indexed_moves!r}")

normalized = load("cnc_sim_linuxcnc_named_parameter_normalization.json")
normalized_moves = [
    (event["line"], event["end"]["x"], event["end"]["y"])
    for event in normalized
    if event["type"] == "linear-feed"
]
expected_normalized_moves = [(4, 12, 0), (6, 12, 1)]
if normalized_moves != expected_normalized_moves:
    raise SystemExit(f"unexpected LinuxCNC normalized named parameter motions: {normalized_moves!r}")

ini_named = load("cnc_sim_linuxcnc_ini_named_parameter.json")
ini_named_moves = [
    (event["line"], event["end"]["x"], event["end"]["y"])
    for event in ini_named
    if event["type"] == "linear-feed"
]
expected_ini_named_moves = [(3, 3.25, 0), (5, 3.25, 1)]
if ini_named_moves != expected_ini_named_moves:
    raise SystemExit(f"unexpected LinuxCNC INI named parameter motions: {ini_named_moves!r}")

readonly_named = load("cnc_sim_linuxcnc_readonly_named_parameters.json")
readonly_moves = [
    (event["line"], event["end"]["x"], event["end"]["y"], event["end"]["z"])
    for event in readonly_named
    if event["type"] == "linear-feed"
]
expected_readonly_moves = [
    (4, 1, 0, 0),
    (8, 0.0393701, 1, 0),
    (12, 1, 25.4, 1),
    (16, 2, 25.4, 1),
    (22, 2, 3, 1),
    (25, 2, 3, 2),
]
if readonly_moves != expected_readonly_moves:
    raise SystemExit(f"unexpected LinuxCNC readonly named parameter motions: {readonly_moves!r}")

coords = load("cnc_sim_linuxcnc_coordinate_offsets.json")
g5x = [event for event in coords if event["type"] == "set-g5x-offset"]
g92 = [event for event in coords if event["type"] == "set-g92-offset"]
rot = [event for event in coords if event["type"] == "set-xy-rotation"]
if not any(
    event["line"] == 2 and
    event["tool"] == 1 and
    event["start"]["x"] == 12.5 and
    event["start"]["y"] == -3 and
    event["start"]["z"] == 4
    for event in g5x
):
    raise SystemExit("missing G10 L2 G5X offset event")
if not any(event["feed"] == 30 for event in rot):
    raise SystemExit("missing G10 L2 XY rotation event")
if not any(
    event["line"] == 4 and
    event["start"]["x"] == 0 and
    event["start"]["y"] == 0 and
    event["start"]["z"] == 0
    for event in g92
):
    raise SystemExit("missing G92.1 clear offset event")
if not any(event["type"] == "program-end" and event["line"] == 5 for event in coords):
    raise SystemExit("missing coordinate program end line number")

l20 = load("cnc_sim_linuxcnc_coordinate_l20.json")
if not any(
    event["type"] == "set-g5x-offset" and
    event["line"] == 4 and
    event["tool"] == 2 and
    event["start"]["x"] == 4 and
    event["start"]["y"] == 4 and
    event["start"]["z"] == 4
    for event in l20
):
    raise SystemExit("missing G10 L20 P2 offset event after G55 selection")
if not any(event["type"] == "program-end" and event["line"] == 5 for event in l20):
    raise SystemExit("missing G10 L20 program end line number")

p0 = load("cnc_sim_linuxcnc_coordinate_p0.json")
if not any(
    event["type"] == "set-g5x-offset" and
    event["line"] == 3 and
    event["tool"] == 2 and
    event["start"]["x"] == 7 and
    event["start"]["y"] == 8 and
    event["start"]["z"] == 9
    for event in p0
):
    raise SystemExit("missing G10 L2 P0 active G55 offset event")
if not any(event["type"] == "program-end" and event["line"] == 4 for event in p0):
    raise SystemExit("missing G10 P0 program end line number")

select_all = load("cnc_sim_linuxcnc_coordinate_select_all.json")
select_events = [
    (event["line"], event["tool"], event["start"]["x"])
    for event in select_all
    if event["type"] == "set-g5x-offset" and event["line"] in set(range(11, 20))
]
expected_select_events = [
    (11, 2, 2),
    (12, 1, 1),
    (13, 3, 3),
    (14, 4, 4),
    (15, 5, 5),
    (16, 6, 6),
    (17, 7, 7),
    (18, 8, 8),
    (19, 9, 9),
]
if select_events != expected_select_events:
    raise SystemExit(f"unexpected G54-G59.3 selection events: {select_events!r}")

g92_restore = load("cnc_sim_linuxcnc_g92_restore.json")
g92_states = [
    (event["line"], event["start"]["x"], event["start"]["y"], event["start"]["z"])
    for event in g92_restore
    if event["type"] == "set-g92-offset" and event["line"] > 0
]
expected_g92_states = [
    (2, -1, -2, -3),
    (3, 0, 0, 0),
    (4, -1, -2, -3),
    (5, 0, 0, 0),
    (6, 0, 0, 0),
]
if g92_states != expected_g92_states:
    raise SystemExit(f"unexpected G92.2/G92.3 restore sequence: {g92_states!r}")
if not any(event["type"] == "program-end" and event["line"] == 7 for event in g92_restore):
    raise SystemExit("missing G92 restore program end line number")

g52_offset = load("cnc_sim_linuxcnc_g52_offset.json")
g52_states = [
    (event["line"], event["start"]["x"], event["start"]["y"], event["start"]["z"])
    for event in g52_offset
    if event["type"] == "set-g92-offset" and event["line"] > 0
]
expected_g52_states = [
    (2, 1, 2, 0),
    (3, 1, 3, 0),
    (4, 0, 0, 0),
    (5, 1, 3, 0),
    (6, 0, 0, 0),
]
if g52_states != expected_g52_states:
    raise SystemExit(f"unexpected G52 shared offset sequence: {g52_states!r}")
if not any(event["type"] == "program-end" and event["line"] == 7 for event in g52_offset):
    raise SystemExit("missing G52 offset program end line number")
PY

echo "linuxcnc rs274 native smoke passed"
echo "dumped $output_dir/cnc_sim_linuxcnc_basic_motion.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_basic_mill.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_incremental_and_r_arc.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_rtcp_controls.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_spindle_direction.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_spindle_modes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_spindle_orient.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_io_controls.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_override_controls.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_modal_state.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_modal_autorestore.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_threading_sync.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_threading_cycle.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_lathe_diameter_mode.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_lathe_diameter_g76.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_tool_number.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_program_stops.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_coolant.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_feed_modes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_motion_modes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_tool_length.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_dynamic_tool_length.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_canned_cycle.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_canned_cycles_extended.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_canned_cycle_planes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_arc_planes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_arc_distance_modes.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_predefined_positions.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_machine_coordinates.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_cutter_comp.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_comments.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_probe_no_error.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_oword_subprogram.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_named_oword_subprogram.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_m98_subprogram.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_oword_control_flow.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_value_returned.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_call_level.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_exists_word_value.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_lowercase_numeric_oword.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_m98_mixed_styles_variables.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_named_parameter_exists.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_indexed_parameters.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_named_parameter_normalization.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_ini_named_parameter.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_readonly_named_parameters.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_coordinate_offsets.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_coordinate_l20.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_coordinate_p0.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_coordinate_select_all.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_g92_restore.json"
echo "dumped $output_dir/cnc_sim_linuxcnc_g52_offset.json"