class Analyzer::Cpp::Cli

• Analyzer::Cpp::Cli
• Analyzer
• Reference
• Object

Overview

Surfaces the command-line attack surface of C++ programs as cli:// endpoints: one endpoint per (sub)command with named options (param_type "flag"), positional arguments ("argument") and consumed environment variables ("env"). Covers CLI11, getopt/getopt_long, cxxopts, boost::program_options, gflags, Abseil Flags and p-ranav/argparse, plus gated getenv reads.

Line-scan analyzer (Go/Ruby/Rust CLI house style) merging endpoints by URL. There is no C++ engine, so it subclasses Analyzer directly.

Defined in:

Constant Summary

ABSL_FLAG_MARK = /\bABSL_FLAG\s*\(/

Abseil Flags. ABSL_FLAG(type, name, default, help) — the type is matched with a depth-aware manual scan (see absl_flag_names) rather than a character-class regex, so a template type with a top-level comma (e.g. std::map<std::string,int>) doesn't truncate/misparse the name field.

ADD_FLAG = /(\w+)\s*(?:\.|->)\s*add_flag\s*\(\s*"([^"]+)"/

ADD_OPTION = /(\w+)\s*(?:\.|->)\s*add_option\s*\(\s*"([^"]+)"/

APP_DECL = /\bCLI::App\s+(\w+)/

CLI11. Variable-mapped: an option/flag binds to its receiver variable (app vs a subcommand), so a root option declared after a subcommand isn't mis-attributed to it.

ARGPARSE_ADD_ARG = /(\w+)\s*(?:\.|->)\s*add_argument\s*\(\s*"([^"]+)"(?:\s*,\s*"([^"]+)")?/

ARGPARSE_DECL = /\bargparse::ArgumentParser\s+(\w+)\s*\(\s*"([^"]+)"/

p-ranav/argparse. Declare-then-register style: an ArgumentParser variable's role (root vs subcommand) is only known once it's observed either as the receiver of .parse_args(argc, argv) / owner side of .add_subparser(...), or by elimination when it's the file's only declared parser. Resolved once per file in resolve_argparse_vars before options are attributed, so declaration order in the file never decides which parser is root (a helper-function-local parser can never be mistaken for the real root).

ARGPARSE_PARSE = /(\w+)\s*(?:\.|->)\s*parse_args\s*\(\s*argc\s*,\s*argv\s*\)/

ARGPARSE_SUBPARSER = /(\w+)\s*(?:\.|->)\s*add_subparser\s*\(\s*(\w+)\s*\)/

ARGV_IDX = /\bargv\s*\[\s*(\d+)\s*\]/

CLI_MARKERS_RE = Regex.union("CLI::App", "getopt", "struct option", "cxxopts::", "program_options", "DEFINE_string", "DEFINE_int", "DEFINE_bool", "ABSL_FLAG", "argparse::ArgumentParser")

Whitespace-tolerant substring markers (no trailing "(" on macro-style entries) so this gate can never diverge from what the extraction regexes above actually accept, e.g. ABSL_FLAG (int32_t, ...) with a space before the paren is valid C++ and must not be silently skipped. Precompiled as a single Regex.union so the per-file evidence gate costs one PCRE2 match instead of up to ten naive substring scans.

CPP_TEST_PATH_RE = Regex.new((Regex.union("/test/", "/tests/", "_test.", "test_", ".test.")).source, Regex::Options::IGNORE_CASE)

Precompiled union for the per-file test-path skip gate (cpp_test_path?), matched via String#matches? instead of five naive substring scans.

EXTS = [".cpp", ".cc", ".cxx", ".c++", ".hpp", ".hh", ".hxx"]

GETENV = /\b(?:std::)?getenv\s*\(\s*"([^"]+)"/

GETOPT_CALL = /\bgetopt(?:_long)?\s*\([^,]+,[^,]+,\s*"([^"]*)"/

GFLAGS_DEF = /\bDEFINE_(?:string|int32|int64|bool|double|uint32|uint64)\s*\(\s*(\w+)/

gflags.

LONG_OPT_ENTRY = /\{\s*"([A-Za-z0-9][\w-]*)"\s*,\s*(?:no_argument|required_argument|optional_argument|\d)/

getopt_long struct option entries + short spec.

OPTS_CALL = /add_options\s*\(\s*\)/

OPTS_PAIR = /(?<!\w)\(\s*"([A-Za-z0-9][\w,-]*)"\s*,/

cxxopts / boost::program_options option specs are bare ("name", ...) grouping/chaining calls — the ( is preceded by ) or whitespace, not an identifier (which would make it a helper call like default_value(...)).

SUBCOMMAND = /(?:\.|->)\s*add_subcommand\s*\(\s*"([^"]+)"/

SUBCOMMAND_VAR = /(\w+)\s*=\s*\w+\s*(?:\.|->)\s*add_subcommand\s*\(\s*"([^"]+)"/

WEB_RE = /\b(?:Crow|crow|drogon|httplib|oatpp)\b|Crow::|drogon::|httplib::|oatpp::/

Instance Method Summary

• #analyze

Instance Method Detail