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#!/usr/bin/env python3
"""
find_untranslated_terms.py (v2)
Scan a directory tree of .po files with polib and find msgstr entries that
still contain a given English technical term verbatim (whole word, case
insensitive) in PROSE, even though the corresponding msgid also contains
that term in prose.
This version is markup-aware: Sphinx roles (:class:`Foo`, :func:`bar`,
:mod:`os`, ...), inline code spans (`...`, ``...``), literal/code blocks,
and quoted code-ish snippets are stripped out before matching, so words
that are only appearing as ROLE NAMES or inside CODE (e.g. "class" in
":class:`bool`", "return"/"raise"/"import" inside a doctest) are not
counted as "untranslated prose".
Fixes vs the first version:
- .git (and other VCS/venv/cache dirs) is excluded from the file walk.
- Sphinx role markup is stripped, not just backticks, which is why
"class", "api", "import", "return", "value", "type" etc. were wildly
inflated before (those words double as role names / Python keywords
that show up constantly in code, not prose).
- Full per-term hit lists are always written out (JSON/CSV); the
console summary intentionally still only *shows* a few examples
per term, since printing 5000+ lines to a terminal isn't useful --
use --json/--csv to get everything.
Requires: polib (pip install polib --break-system-packages)
"""
import argparse
import csv
import json
import re
import sys
from collections import defaultdict
from pathlib import Path
try:
import polib
except ImportError:
sys.exit(
"This script requires polib. Install with: pip install polib --break-system-packages"
)
TERMS = [
"heap",
"type",
"value",
"async",
"wildcard",
"index",
"property",
"bootstrapping",
"mock",
"pipe",
"docstring",
"object",
"action",
"local",
"escape",
"raise",
"return",
"list",
"operator",
"element",
"import",
"encoding",
"global",
"string",
"class",
"module",
"function",
"shell",
"exception",
"event",
"coroutine",
"interface",
"cache",
"command line",
"package",
"method",
"widget",
"symlink",
"item",
"generator",
"loop",
"runtime",
"built-in",
"namespace",
"syntax",
"argument",
"wrapper",
"load",
"attribute",
"thread",
"api",
"variable",
"expression",
"f-string",
"callback",
]
EXCLUDE_DIRS = {".git", ".venv", "venv", "node_modules", "__pycache__", ".tox"}
# ---------------------------------------------------------------------------
# Markup stripping (adapted from check_consistency.py's approach)
# ---------------------------------------------------------------------------
# Sphinx/reST roles whose *content* is code/identifiers, not prose.
CODE_ROLES = {
"func",
"meth",
"mod",
"class",
"data",
"const",
"attr",
"exc",
"obj",
"command",
"cmdoption",
"envvar",
"file",
"kbd",
"option",
"program",
"regexp",
"makevar",
"dunder",
"module",
"method",
"exception",
"ref",
"doc",
"download",
"env",
"pep",
"rfc",
"issue",
"source",
"mimetype",
"keyword",
"literal",
"token",
"grammar",
"confval",
"setting",
}
ROLE_RE = re.compile(r":([\w+-]+):`([^`]*)`")
DOUBLE_BACKTICK_RE = re.compile(r"``.*?``", re.DOTALL)
SINGLE_BACKTICK_RE = re.compile(r"`([^`]*)`")
SUBREF_RE = re.compile(r"\|[\w.-]+\|")
URL_RE = re.compile(r"https?://\S+")
EMPH_RE = re.compile(r"(\*\*?)(.+?)\1")
TARGET_RE = re.compile(r"^(.*)\s<[^<>]+>$")
def strip_markup(text, keep_prose_roles=True):
"""Remove code spans / role markup; keep the *display text* of prose
roles like :term:`Foo` or :ref:`title <target>` since translators do
translate that part."""
def role_repl(m):
role, body = m.group(1).lower(), m.group(2)
if role in CODE_ROLES:
return " "
if not keep_prose_roles:
return " "
t = TARGET_RE.match(body)
return t.group(1) if t else body
text = DOUBLE_BACKTICK_RE.sub(" ", text)
text = ROLE_RE.sub(role_repl, text)
text = SINGLE_BACKTICK_RE.sub(r" \1 ", text)
text = SUBREF_RE.sub(" ", text)
text = URL_RE.sub(" ", text)
text = EMPH_RE.sub(r"\2", text)
return text
WORD_RE = re.compile(r"[A-Za-z][A-Za-z\-]*[A-Za-z]|[A-Za-z]")
QUOTED_CODE_RE = re.compile(r"'([\w.\-/ ]+)'|\"([\w.\-/ ]+)\"")
def quoted_span_is_code(content):
words = content.split()
return (
len(words) == 1
or any(c in content for c in ".-_")
or content.startswith(("import ", "from "))
)
def strip_quoted_code(text):
def repl(m):
content = m.group(1) or m.group(2)
return " " if quoted_span_is_code(content) else m.group(0)
return QUOTED_CODE_RE.sub(repl, text)
CODE_LINE_START_RE = re.compile(
r"^(?:import|from)\s" r"|^[a-z_][\w.]*(?:\[[^\]]*\])?\s*[=(]" r"|^[a-z_][\w.]*\("
)
CODE_STMT_RE = re.compile(
r"^(?:if|elif|else|for|while|def|class|try|except|finally|with|return"
r"|raise|break|continue|lambda|async|await)\b.*:\s*(?:#.*)?$"
)
def looks_codeish(line):
if line.startswith((">>>", "...", "$", "#")):
return True
if line.startswith(("'", '"', "[", "{", "<")) or line[0:1].isdigit():
return True
return bool(CODE_LINE_START_RE.match(line) or CODE_STMT_RE.match(line))
def prose_line(line):
s = line.strip()
if not s or looks_codeish(s):
return False
return len(s.split()) >= 3 and s[0].isupper()
def looks_like_code_block(msgid):
"""Whole-entry literal blocks (doctests, code listings)."""
s = msgid.strip()
if "\n" not in s:
return False
lines = [ln for ln in s.splitlines() if ln.strip()]
if not lines:
return True
codeish = sum(
1
for ln in lines
if ln.lstrip().startswith((">>>", "...", "#", "$"))
or ln.startswith((" ", "\t"))
)
return codeish / len(lines) >= 0.8
def standalone_code_entry(msgid):
lines = [ln for ln in msgid.split("\n") if ln.strip()]
if not lines:
return False
codeish = sum(1 for ln in lines if ln[0] in " \t" or looks_codeish(ln.strip()))
prose = sum(1 for ln in lines if prose_line(ln))
return codeish >= max(1, len(lines) // 2) and prose <= len(lines) // 3
def strip_literal_blocks(msgid):
"""Drop the code content after a '::' literal-block marker."""
out = []
in_block = False
for ln in msgid.split("\n"):
stripped = ln.strip()
if not in_block:
if stripped == "::":
in_block = True
continue
if stripped.endswith("::"):
out.append(ln[: ln.rindex("::")].rstrip())
in_block = True
continue
out.append(ln)
else:
if not stripped:
continue
if ln[0] in " \t" or looks_codeish(stripped):
continue
in_block = False
out.append(ln)
return "\n".join(out)
def mostly_preserved_code(msgid, msgstr):
"""Code listings where only comments were translated: almost all
English tokens of msgid reappear verbatim in msgstr."""
toks = [t.lower() for t in WORD_RE.findall(strip_markup(msgid))]
if len(toks) < 6:
return False
kept = sum(1 for t in toks if t in msgstr)
return kept / len(toks) >= 0.8
# Bare code fragments embedded directly in prose with NO backticks/roles at
# all, e.g. "...(e.g. list.index()) but functions for other (e.g. len(list))"
# or "using ``list(dictview)``" -- covers dotted-call (name.method(...)),
# bare call (name(...)), and subscript/dunder-ish tokens.
BARE_DOTTED_CALL_RE = re.compile(r"\b[A-Za-z_][\w]*(?:\.[A-Za-z_][\w]*)+\(\)?")
BARE_CALL_RE = re.compile(r"\b[A-Za-z_][\w]*\([^()\s]{0,40}\)")
def strip_bare_code_fragments(text):
text = BARE_DOTTED_CALL_RE.sub(" ", text)
text = BARE_CALL_RE.sub(" ", text)
return text
def clean_prose(msgid):
"""Full pipeline: literal blocks -> markup -> quoted code -> bare code."""
text = strip_literal_blocks(msgid)
text = strip_markup(text)
text = strip_quoted_code(text)
text = strip_bare_code_fragments(text)
return text
# ---------------------------------------------------------------------------
# Term matching
# ---------------------------------------------------------------------------
def build_term_pattern(term):
escaped = re.escape(term)
# spaces/hyphens interchangeable, optional plural
parts = [re.escape(p) for p in re.split(r"[\s\-]+", term) if p]
body = r"[\s\-]+".join(parts)
return re.compile(
rf"(?<![A-Za-z0-9_.\-]){body}(?:e?s)?(?![A-Za-z0-9_])", re.IGNORECASE
)
TERM_PATTERNS = {term: build_term_pattern(term) for term in TERMS}
def iter_po_files(root):
root = Path(root)
if root.is_file():
yield root
return
for p in sorted(root.rglob("*.po")):
if not (set(p.parts) & EXCLUDE_DIRS):
yield p
def scan_file(path):
hits = []
try:
po = polib.pofile(str(path))
except Exception as e:
print(f" ! failed to parse {path}: {e}", file=sys.stderr)
return hits
for entry in po:
if entry.obsolete or entry.fuzzy or not entry.msgstr or not entry.msgid:
continue
msgid, msgstr = entry.msgid, entry.msgstr
if msgstr.strip() == msgid.strip():
continue # identical: probably an untranslated code-only string
if looks_like_code_block(msgid) or standalone_code_entry(msgid):
continue
if mostly_preserved_code(msgid, msgstr):
continue
msgid_prose = clean_prose(msgid)
if not msgid_prose.strip():
continue
# Strip the same code/markup out of msgstr too. Otherwise a fully
# correct translation still "matches" because the term survives
# inside a code snippet embedded in the msgstr (e.g. Farsi prose
# around a kept ``list.insert()`` call) even though nothing was
# actually left untranslated in the prose itself.
msgstr_prose = clean_prose(msgstr)
for term, pattern in TERM_PATTERNS.items():
if pattern.search(msgid_prose) and pattern.search(msgstr_prose):
hits.append((term, entry.linenum, msgid, msgstr))
return hits
def main():
ap = argparse.ArgumentParser(
description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
)
ap.add_argument(
"root", help="Root directory to search for .po files (or a single .po file)"
)
ap.add_argument("--json", metavar="PATH", help="Write full results as JSON")
ap.add_argument("--csv", metavar="PATH", help="Write full results as CSV")
ap.add_argument(
"--examples",
type=int,
default=4,
help="Example locations to show per term in the console summary (default 4)",
)
args = ap.parse_args()
po_files = list(iter_po_files(args.root))
if not po_files:
sys.exit(f"No .po files found under {args.root}")
print(
f"Scanning {len(po_files)} .po file(s) under {args.root} ...\n", file=sys.stderr
)
results = defaultdict(list)
for path in po_files:
for term, linenum, msgid, msgstr in scan_file(path):
results[term].append(
{"file": str(path), "line": linenum, "msgid": msgid, "msgstr": msgstr}
)
total_entries = sum(len(v) for v in results.values())
print(f"English term kept in prose -- {total_entries} entries")
print("The English term is left untranslated inside prose. If that is the intended")
print(
"convention, add the English form to glossary.json; otherwise translate these:\n"
)
for term in sorted(results.keys(), key=lambda t: -len(results[t])):
entries = results[term]
example_str = ", ".join(
f"{e['file']}:{e['line']}" for e in entries[: args.examples]
)
print(f"{term}: {len(entries)} entries (e.g. {example_str})\n")
if args.json:
with open(args.json, "w", encoding="utf-8") as f:
json.dump(results, f, indent=2, ensure_ascii=False)
print(f"Full results written to {args.json}", file=sys.stderr)
if args.csv:
with open(args.csv, "w", newline="", encoding="utf-8") as f:
writer = csv.writer(f)
writer.writerow(["term", "file", "line", "msgid", "msgstr"])
for term, entries in results.items():
for e in entries:
writer.writerow(
[term, e["file"], e["line"], e["msgid"], e["msgstr"]]
)
print(f"Full results written to {args.csv}", file=sys.stderr)
if __name__ == "__main__":
main()