bpo-36876: Fix the C analyzer tool. (GH-22841)

The original tool wasn't working right and it was simpler to create a new one, partially re-using some of the old code. At this point the tool runs properly on the master. (Try: ./python Tools/c-analyzer/c-analyzer.py analyze.)  It take ~40 seconds on my machine to analyze the full CPython code base.

Note that we'll need to iron out some OS-specific stuff (e.g. preprocessor). We're okay though since this tool isn't used yet in our workflow. We will also need to verify the analysis results in detail before activating the check in CI, though I'm pretty sure it's close.

https://bugs.python.org/issue36876

1 files changed, 0 insertions, 34 deletions

diff --git a/Tools/c-analyzer/c_analyzer/parser/source.py b/Tools/c-analyzer/c_analyzer/parser/source.py
deleted file mode 100644
index f8998c8a33..0000000000
--- a/Tools/c-analyzer/c_analyzer/parser/source.py
+++ /dev/null
@@ -1,34 +0,0 @@
-from . import preprocessor
-
-
-def iter_clean_lines(lines):
-    incomment = False
-    for line in lines:
-        # Deal with comments.
-        if incomment:
-            _, sep, line = line.partition('*/')
-            if sep:
-                incomment = False
-            continue
-        line, _, _ = line.partition('//')
-        line, sep, remainder = line.partition('/*')
-        if sep:
-            _, sep, after = remainder.partition('*/')
-            if not sep:
-                incomment = True
-                continue
-            line += ' ' + after
-
-        # Ignore blank lines and leading/trailing whitespace.
-        line = line.strip()
-        if not line:
-            continue
-
-        yield line
-
-
-def iter_lines(filename, *,
-               preprocess=preprocessor.run,
-               ):
-    content = preprocess(filename)
-    return iter(content.splitlines())