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18c59b6263
* Merge #16291: gui: Stop translating PACKAGE_NAME fa64b947bb3075ff8737656706b941af691908ab util: No translation of `Bitcoin Core` in the copyright (MarcoFalke) fab85208f678ba1be53bdb73a73ce3c5c937d448 qt: Run «make translate» in ./src/ (MarcoFalke) fabe87d2c923ab3a70b8cde2666a4d1cda8b22fb scripted-diff: Avoid passing PACKAGE_NAME for translation (MarcoFalke) fa5e9f157e568b7fbbea1482b393181f0733f2ba build: Stop translating PACKAGE_NAME (MarcoFalke) Pull request description: Generally the package name is not translated, but the package description is. E.g. `GIMP` or `Firefox` are always called that way regardless of the system language. However, "`Firefox` webbrowser" or "`GIMP` image manipulation program" are translated. ACKs for top commit: hebasto: ACK fa64b947bb3075ff8737656706b941af691908ab, I have not tested the code, but I have reviewed it and it looks OK, I agree it can be merged. Tree-SHA512: 626f811531182d0ba0ef1044930d32726773349bcb49b10261288a86ee6b80a183db30a87d817d5b0d501fad058ac22d6272311716b4f5a154f17c6f391a5a1a * more Co-authored-by: MarcoFalke <falke.marco@gmail.com> Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
297 lines
13 KiB
Python
Executable File
297 lines
13 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2018 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#
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# Lint format strings: This program checks that the number of arguments passed
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# to a variadic format string function matches the number of format specifiers
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# in the format string.
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import argparse
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import re
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import sys
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FALSE_POSITIVES = [
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("src/batchedlogger.h", "strprintf(fmt, args...)"),
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("src/dbwrapper.cpp", "vsnprintf(p, limit - p, format, backup_ap)"),
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("src/index/base.cpp", "FatalError(const char* fmt, const Args&... args)"),
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("src/index/txindex.cpp", "FatalError(const char* fmt, const Args&... args)"),
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("src/netbase.cpp", "LogConnectFailure(bool manual_connection, const char* fmt, const Args&... args)"),
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("src/qt/networkstyle.cpp", "strprintf(appName, gArgs.GetDevNetName())"),
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("src/qt/networkstyle.cpp", "strprintf(titleAddText, gArgs.GetDevNetName())"),
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("src/rpc/rpcevo.cpp", "strprintf(it->second, nParamNum)"),
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("src/stacktraces.cpp", "strprintf(fmtStr, i, si.pc, lstr, fstr)"),
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("src/statsd_client.cpp", "snprintf(d->errmsg, sizeof(d->errmsg), \"could not create socket, err=%m\")"),
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("src/statsd_client.cpp", "snprintf(d->errmsg, sizeof(d->errmsg), \"sendto server fail, host=%s:%d, err=%m\", d->host.c_str(), d->port)"),
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("src/util/system.cpp", "strprintf(_(COPYRIGHT_HOLDERS), COPYRIGHT_HOLDERS_SUBSTITUTION)"),
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("src/wallet/wallet.h", "WalletLogPrintf(std::string fmt, Params... parameters)"),
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("src/wallet/wallet.h", "LogPrintf((\"%s \" + fmt).c_str(), GetDisplayName(), parameters...)"),
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("src/logging.h", "LogPrintf(const char* fmt, const Args&... args)"),
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]
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def parse_function_calls(function_name, source_code):
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"""Return an array with all calls to function function_name in string source_code.
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Preprocessor directives and C++ style comments ("//") in source_code are removed.
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>>> len(parse_function_calls("foo", "foo();bar();foo();bar();"))
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2
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>>> parse_function_calls("foo", "foo(1);bar(1);foo(2);bar(2);")[0].startswith("foo(1);")
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True
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>>> parse_function_calls("foo", "foo(1);bar(1);foo(2);bar(2);")[1].startswith("foo(2);")
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True
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>>> len(parse_function_calls("foo", "foo();bar();// foo();bar();"))
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1
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>>> len(parse_function_calls("foo", "#define FOO foo();"))
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0
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"""
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assert type(function_name) is str and type(source_code) is str and function_name
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lines = [re.sub("// .*", " ", line).strip()
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for line in source_code.split("\n")
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if not line.strip().startswith("#")]
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return re.findall(r"[^a-zA-Z_](?=({}\(.*).*)".format(function_name), " " + " ".join(lines))
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def normalize(s):
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"""Return a normalized version of string s with newlines, tabs and C style comments ("/* ... */")
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replaced with spaces. Multiple spaces are replaced with a single space.
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>>> normalize(" /* nothing */ foo\tfoo /* bar */ foo ")
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'foo foo foo'
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"""
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assert type(s) is str
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s = s.replace("\n", " ")
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s = s.replace("\t", " ")
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s = re.sub(r"/\*.*?\*/", " ", s)
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s = re.sub(" {2,}", " ", s)
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return s.strip()
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ESCAPE_MAP = {
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r"\n": "[escaped-newline]",
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r"\t": "[escaped-tab]",
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r'\"': "[escaped-quote]",
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}
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def escape(s):
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"""Return the escaped version of string s with "\\\"", "\\n" and "\\t" escaped as
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"[escaped-backslash]", "[escaped-newline]" and "[escaped-tab]".
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>>> unescape(escape("foo")) == "foo"
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True
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>>> escape(r'foo \\t foo \\n foo \\\\ foo \\ foo \\"bar\\"')
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'foo [escaped-tab] foo [escaped-newline] foo \\\\\\\\ foo \\\\ foo [escaped-quote]bar[escaped-quote]'
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"""
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assert type(s) is str
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for raw_value, escaped_value in ESCAPE_MAP.items():
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s = s.replace(raw_value, escaped_value)
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return s
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def unescape(s):
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"""Return the unescaped version of escaped string s.
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Reverses the replacements made in function escape(s).
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>>> unescape(escape("bar"))
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'bar'
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>>> unescape("foo [escaped-tab] foo [escaped-newline] foo \\\\\\\\ foo \\\\ foo [escaped-quote]bar[escaped-quote]")
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'foo \\\\t foo \\\\n foo \\\\\\\\ foo \\\\ foo \\\\"bar\\\\"'
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"""
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assert type(s) is str
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for raw_value, escaped_value in ESCAPE_MAP.items():
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s = s.replace(escaped_value, raw_value)
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return s
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def parse_function_call_and_arguments(function_name, function_call):
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"""Split string function_call into an array of strings consisting of:
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* the string function_call followed by "("
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* the function call argument #1
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* ...
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* the function call argument #n
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* a trailing ");"
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The strings returned are in escaped form. See escape(...).
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>>> parse_function_call_and_arguments("foo", 'foo("%s", "foo");')
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['foo(', '"%s",', ' "foo"', ')']
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>>> parse_function_call_and_arguments("foo", 'foo("%s", "foo");')
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['foo(', '"%s",', ' "foo"', ')']
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>>> parse_function_call_and_arguments("foo", 'foo("%s %s", "foo", "bar");')
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['foo(', '"%s %s",', ' "foo",', ' "bar"', ')']
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>>> parse_function_call_and_arguments("fooprintf", 'fooprintf("%050d", i);')
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['fooprintf(', '"%050d",', ' i', ')']
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>>> parse_function_call_and_arguments("foo", 'foo(bar(foobar(barfoo("foo"))), foobar); barfoo')
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['foo(', 'bar(foobar(barfoo("foo"))),', ' foobar', ')']
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>>> parse_function_call_and_arguments("foo", "foo()")
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['foo(', '', ')']
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>>> parse_function_call_and_arguments("foo", "foo(123)")
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['foo(', '123', ')']
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>>> parse_function_call_and_arguments("foo", 'foo("foo")')
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['foo(', '"foo"', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,wchar_t>().to_bytes(buf), err);')
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['strprintf(', '"%s (%d)",', ' std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,wchar_t>().to_bytes(buf),', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo<wchar_t>().to_bytes(buf), err);')
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['strprintf(', '"%s (%d)",', ' foo<wchar_t>().to_bytes(buf),', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo().to_bytes(buf), err);')
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['strprintf(', '"%s (%d)",', ' foo().to_bytes(buf),', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo << 1, err);')
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['strprintf(', '"%s (%d)",', ' foo << 1,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo<bar>() >> 1, err);')
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['strprintf(', '"%s (%d)",', ' foo<bar>() >> 1,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo < 1 ? bar : foobar, err);')
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['strprintf(', '"%s (%d)",', ' foo < 1 ? bar : foobar,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo < 1, err);')
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['strprintf(', '"%s (%d)",', ' foo < 1,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo > 1 ? bar : foobar, err);')
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['strprintf(', '"%s (%d)",', ' foo > 1 ? bar : foobar,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo > 1, err);')
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['strprintf(', '"%s (%d)",', ' foo > 1,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo <= 1, err);')
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['strprintf(', '"%s (%d)",', ' foo <= 1,', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo <= bar<1, 2>(1, 2), err);')
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['strprintf(', '"%s (%d)",', ' foo <= bar<1, 2>(1, 2),', ' err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo>foo<1,2>(1,2)?bar:foobar,err)');
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['strprintf(', '"%s (%d)",', ' foo>foo<1,2>(1,2)?bar:foobar,', 'err', ')']
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>>> parse_function_call_and_arguments("strprintf", 'strprintf("%s (%d)", foo>foo<1,2>(1,2),err)');
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['strprintf(', '"%s (%d)",', ' foo>foo<1,2>(1,2),', 'err', ')']
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"""
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assert type(function_name) is str and type(function_call) is str and function_name
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remaining = normalize(escape(function_call))
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expected_function_call = "{}(".format(function_name)
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assert remaining.startswith(expected_function_call)
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parts = [expected_function_call]
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remaining = remaining[len(expected_function_call):]
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open_parentheses = 1
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open_template_arguments = 0
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in_string = False
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parts.append("")
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for i, char in enumerate(remaining):
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parts.append(parts.pop() + char)
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if char == "\"":
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in_string = not in_string
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continue
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if in_string:
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continue
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if char == "(":
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open_parentheses += 1
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continue
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if char == ")":
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open_parentheses -= 1
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if open_parentheses > 1:
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continue
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if open_parentheses == 0:
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parts.append(parts.pop()[:-1])
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parts.append(char)
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break
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prev_char = remaining[i - 1] if i - 1 >= 0 else None
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next_char = remaining[i + 1] if i + 1 <= len(remaining) - 1 else None
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if char == "<" and next_char not in [" ", "<", "="] and prev_char not in [" ", "<"]:
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open_template_arguments += 1
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continue
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if char == ">" and next_char not in [" ", ">", "="] and prev_char not in [" ", ">"] and open_template_arguments > 0:
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open_template_arguments -= 1
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if open_template_arguments > 0:
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continue
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if char == ",":
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parts.append("")
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return parts
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def parse_string_content(argument):
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"""Return the text within quotes in string argument.
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>>> parse_string_content('1 "foo %d bar" 2')
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'foo %d bar'
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>>> parse_string_content('1 foobar 2')
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''
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>>> parse_string_content('1 "bar" 2')
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'bar'
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>>> parse_string_content('1 "foo" 2 "bar" 3')
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'foobar'
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>>> parse_string_content('1 "foo" 2 " " "bar" 3')
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'foo bar'
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>>> parse_string_content('""')
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''
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>>> parse_string_content('')
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''
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>>> parse_string_content('1 2 3')
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''
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"""
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assert type(argument) is str
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string_content = ""
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in_string = False
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for char in normalize(escape(argument)):
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if char == "\"":
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in_string = not in_string
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elif in_string:
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string_content += char
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return string_content
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def count_format_specifiers(format_string):
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"""Return the number of format specifiers in string format_string.
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>>> count_format_specifiers("foo bar foo")
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0
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>>> count_format_specifiers("foo %d bar foo")
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1
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>>> count_format_specifiers("foo %d bar %i foo")
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2
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>>> count_format_specifiers("foo %d bar %i foo %% foo")
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2
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>>> count_format_specifiers("foo %d bar %i foo %% foo %d foo")
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3
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>>> count_format_specifiers("foo %d bar %i foo %% foo %*d foo")
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4
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"""
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assert type(format_string) is str
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format_string = format_string.replace('%%', 'X')
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n = 0
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in_specifier = False
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for i, char in enumerate(format_string):
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if char == "%":
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in_specifier = True
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n += 1
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elif char in "aAcdeEfFgGinopsuxX":
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in_specifier = False
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elif in_specifier and char == "*":
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n += 1
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return n
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def main():
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parser = argparse.ArgumentParser(description="This program checks that the number of arguments passed "
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"to a variadic format string function matches the number of format "
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"specifiers in the format string.")
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parser.add_argument("--skip-arguments", type=int, help="number of arguments before the format string "
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"argument (e.g. 1 in the case of fprintf)", default=0)
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parser.add_argument("function_name", help="function name (e.g. fprintf)", default=None)
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parser.add_argument("file", nargs="*", help="C++ source code file (e.g. foo.cpp)")
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args = parser.parse_args()
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exit_code = 0
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for filename in args.file:
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with open(filename, "r", encoding="utf-8") as f:
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for function_call_str in parse_function_calls(args.function_name, f.read()):
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parts = parse_function_call_and_arguments(args.function_name, function_call_str)
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relevant_function_call_str = unescape("".join(parts))[:512]
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if (f.name, relevant_function_call_str) in FALSE_POSITIVES:
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continue
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if len(parts) < 3 + args.skip_arguments:
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exit_code = 1
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print("{}: Could not parse function call string \"{}(...)\": {}".format(f.name, args.function_name, relevant_function_call_str))
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continue
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argument_count = len(parts) - 3 - args.skip_arguments
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format_str = parse_string_content(parts[1 + args.skip_arguments])
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format_specifier_count = count_format_specifiers(format_str)
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if format_specifier_count != argument_count:
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exit_code = 1
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print("{}: Expected {} argument(s) after format string but found {} argument(s): {}".format(f.name, format_specifier_count, argument_count, relevant_function_call_str))
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continue
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sys.exit(exit_code)
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if __name__ == "__main__":
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main()
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