1 files changed, 42 insertions, 0 deletions
diff --git a/Tools/c-analyzer/c_common/strutil.py b/Tools/c-analyzer/c_common/strutil.py
new file mode 100644
index 0000000000..e7535d45bb
--- /dev/null
+++ b/Tools/c-analyzer/c_common/strutil.py
@@ -0,0 +1,42 @@
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+
+def unrepr(value):
+    raise NotImplementedError
+
+
+def parse_entries(entries, *, ignoresep=None):
+    for entry in entries:
+        if ignoresep and ignoresep in entry:
+            subentries = [entry]
+        else:
+            subentries = entry.strip().replace(',', ' ').split()
+        for item in subentries:
+            if item.startswith('+'):
+                filename = item[1:]
+                try:
+                    infile = open(filename)
+                except FileNotFoundError:
+                    logger.debug(f'ignored in parse_entries(): +{filename}')
+                    return
+                with infile:
+                    # We read the entire file here to ensure the file
+                    # gets closed sooner rather than later.  Note that
+                    # the file would stay open if this iterator is never
+                    # exchausted.
+                    lines = infile.read().splitlines()
+                for line in _iter_significant_lines(lines):
+                    yield line, filename
+            else:
+                yield item, None
+
+
+def _iter_significant_lines(lines):
+    for line in lines:
+        line = line.partition('#')[0]
+        if not line.strip():
+            continue
+        yield line