From 2dd9847a7b67c39dc872d17558f1ced00101082b Mon Sep 17 00:00:00 2001
From: cnc <cnc@localhost>
Date: Wed, 3 Jun 2026 09:04:26 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=82=E8=80=83=E6=89=80=E6=9C=89=E5=88=86?=
 =?UTF-8?q?=E7=BB=84=EF=BC=9A=E8=A1=A5=20comment=20=E9=94=99=E8=AF=AF=20so?=
 =?UTF-8?q?urce=20=E8=A6=86=E7=9B=96=EF=BC=8C=E6=B5=8B=E8=AF=95=E9=80=9A?=
 =?UTF-8?q?=E8=BF=87?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 test-all-native.sh                              | 2 ++
 test-linuxcnc-source-link.sh                    | 5 ++++-
 tests/gcode/linuxcnc_nested_comment_error.ngc   | 2 ++
 tests/gcode/linuxcnc_unclosed_comment_error.ngc | 2 ++
 4 files changed, 10 insertions(+), 1 deletion(-)
 create mode 100644 tests/gcode/linuxcnc_nested_comment_error.ngc
 create mode 100644 tests/gcode/linuxcnc_unclosed_comment_error.ngc

diff --git a/test-all-native.sh b/test-all-native.sh
index bb88c59..dfb9eec 100755
--- a/test-all-native.sh
+++ b/test-all-native.sh
@@ -565,6 +565,8 @@ grep -F 'tests/gcode/linuxcnc_fractional_linenumbers.ngc' test-linuxcnc-source-l
 grep -F 'tests/gcode/linuxcnc_extended_linenumbers.ngc' test-linuxcnc-source-link.sh >/dev/null
 grep -F 'tests/gcode/linuxcnc_close_and_downcase_words.ngc' test-linuxcnc-source-link.sh >/dev/null
 grep -F 'tests/gcode/linuxcnc_percent_file_ignores_trailing.ngc' test-linuxcnc-source-link.sh >/dev/null
+grep -F 'linuxcnc_unclosed_comment_error|Unclosed comment found' test-linuxcnc-source-link.sh >/dev/null
+grep -F 'linuxcnc_nested_comment_error|Nested comment found' test-linuxcnc-source-link.sh >/dev/null
 
 for script in \
     test-native.sh \
diff --git a/test-linuxcnc-source-link.sh b/test-linuxcnc-source-link.sh
index 2823f9c..241d439 100755
--- a/test-linuxcnc-source-link.sh
+++ b/test-linuxcnc-source-link.sh
@@ -1202,11 +1202,14 @@ done
 # Source basis: LinuxCNC src/emc/rs274ngc/interp_read.cc read_text()
 # rejects EOF without the matching percent/program end and overlong file
 # lines; read_n_number() rejects malformed N-line numbers through
-# read_integer_unsigned().
+# read_integer_unsigned(); src/emc/rs274ngc/interp_internal.cc
+# close_and_downcase() rejects unclosed and nested parenthesis comments.
 read_text_error_cases=(
     "linuxcnc_file_ended_no_program_end_error|File ended with no percent sign"
     "linuxcnc_file_ended_no_percent_error|File ended with no percent sign"
     "linuxcnc_bad_n_number_format_error|Bad format unsigned integer"
+    "linuxcnc_unclosed_comment_error|Unclosed comment found"
+    "linuxcnc_nested_comment_error|Nested comment found"
 )
 for case in "${read_text_error_cases[@]}"; do
     fixture=${case%%|*}
diff --git a/tests/gcode/linuxcnc_nested_comment_error.ngc b/tests/gcode/linuxcnc_nested_comment_error.ngc
new file mode 100644
index 0000000..b279125
--- /dev/null
+++ b/tests/gcode/linuxcnc_nested_comment_error.ngc
@@ -0,0 +1,2 @@
+G21 G90
+G0 X1 (outer (inner))
diff --git a/tests/gcode/linuxcnc_unclosed_comment_error.ngc b/tests/gcode/linuxcnc_unclosed_comment_error.ngc
new file mode 100644
index 0000000..4484093
--- /dev/null
+++ b/tests/gcode/linuxcnc_unclosed_comment_error.ngc
@@ -0,0 +1,2 @@
+G21 G90
+G0 X1 (missing close