OpenGuido V3 — Intelligent Offline Code & Command Reference

🌐 openguido.vercel.app · ⬇️ VS Code Marketplace · 📦 GitHub

OpenGuido is a VS Code extension that provides an intelligent, searchable offline programming knowledge engine for C++, Python, Git, and Linux commands — directly inside Visual Studio Code.

🚀 Now with 1150+ snippets across 4 languages/categories!
📖 Documentation website: openguido.vercel.app

Features

Intelligent fuzzy search — find snippets even with incomplete queries ("string to lower" finds tolower(), transform(), and more)
Intent-based matching — natural language understanding ("sort vector", "remove duplicates", "find element", "reverse list")
Alias & keyword search — search by any common name, alternative name, or related term
Weighted relevance ranking — title > aliases > tags > keywords > description > explanation
Prefix & substring matching — start typing and results appear immediately
1150+ snippets and commands — fully offline, no internet required
Preview snippet, Copy to clipboard, Insert into editor
Show Statistics — view snippet counts by language and category

Supported Categories

🐍 Python — 194+ snippets 🆕

Category	Topics
Basics	Variables, types (int/float/str/bool/None), I/O, operators, conditionals, loops, match/case, comprehensions (list/dict/set/generator)
Strings	All string methods, f-strings (format spec, debug), `str.format()`, regex (match/search/findall/sub/split), bytes/encoding
Data Structures	List (stack/queue, sort, copy), tuple (unpacking, `namedtuple`), dict (comprehension, merge `\\|`, `defaultdict`, `Counter`, `OrderedDict`, `ChainMap`), set (union/intersection/difference, `frozenset`), `heapq`, `array`
Functions	`args`/`*kwargs`, keyword-only args, lambda, decorators (`@wraps`, parameterized), generators (`yield`, `yield from`), closures, type hints, `@property`, `@staticmethod`, `@classmethod`, recursion, `partial`, `singledispatch`
OOP	Inheritance (`super()`, MRO), magic methods, ABCs, `@dataclass`, `__slots__`, Enum, operator overloading, context managers (`@contextmanager`), descriptors, mixins, metaclasses
Standard Library	`os`/`sys`/`json`/`datetime`/`math`/`random`/`hashlib`/`pathlib`/`csv`/`copy`/`pprint`/`glob`/`statistics`/`uuid`/`base64`/`textwrap`/`argparse`
Itertools	`chain`, `product`, `permutations`, `combinations`, `groupby`, `count`/`cycle`/`repeat`, `accumulate`, `compress`, `tee`
Functools	`partial`, `lru_cache`, `reduce`, `singledispatch`, `wraps`
Logging/Shutil	Logger setup, handlers, file ops, archive, `tempfile`, `contextlib`
Concurrency	`threading` (Lock, Event, Queue), `ThreadPoolExecutor`, `asyncio` (`async`/`await`, `gather`), `subprocess` (run, Popen)
Exception Handling	try/except/else/finally, custom exceptions, assertion, exception hierarchy
File I/O	`open()` modes, encoding, `with` context manager, chunk reading
Web & Data	`requests` (GET/POST/sessions), Flask basics, `unittest`/`mock`, NumPy (arrays/operations/broadcasting), Pandas (Series/DataFrame/groupby/merge), pip/venv

🇨 C++ — 674+ snippets, 23 categories

Category	Topics
Basics	Variables, I/O, conditionals, loops, functions, arrays, pointers, dynamic memory
STL Containers	`vector`, `deque`, `list`, `forward_list`, `set`, `multiset`, `map`, `multimap`, `unordered_*`, `stack`, `queue`, `priority_queue`, `bitset`, `array`
STL Algorithms	`sort`, `find`, `count`, `accumulate`, `binary_search`, `lower_bound`, `upper_bound`, `partition`, `rotate`, `next_permutation`, `merge`
String	All operations, conversions, search, parsing, `string_view`
OOP	Classes, inheritance (all types), polymorphism, virtual, RAII, smart pointers (`unique_ptr`, `shared_ptr`, `weak_ptr`), rule of three/five
DSA	Linked lists, trees (BST, traversal), graphs (DFS/BFS/Dijkstra/Bellman-Ford/Floyd-Warshall), DSU, segment tree, Fenwick, trie, DP (Knapsack/LCS/LIS), backtracking
Modern C++ (C++11/14/17/20/23)	Lambdas (all forms), `auto`/`decltype`, `nullptr`, `constexpr`/`consteval`/`constinit`, `enum class`, `override`/`final`, structured bindings, `if constexpr`, fold expressions, concepts, ranges, spaceship `<=>`, `optional`, `variant`, `any`, `span`, `string_view`, `format`, coroutines, `source_location`, `expected`, `bit`, `mdspan`
Concurrency	`thread`, `mutex`, `lock_guard`/`unique_lock`/`scoped_lock`, `async`, `future`/`promise`, `atomic`, `condition_variable`, `thread_local`
Templates	Function/class templates, specialization, variadic, type traits (`is_same`, `enable_if`, `void_t`), SFINAE, CRTP, fold expressions
Design Patterns	Factory, Observer, Strategy, Builder (C++ implementations)
CP Patterns	Sparse Table, Mo's Algorithm, HLD, Matrix Exponentiation, PBDS
Preprocessor	`#include`, `#define`, macros, `#pragma`, namespaces, storage classes (`static`/`extern`/`mutable`)
Type Casting	`static_cast`, `dynamic_cast`, `reinterpret_cast`, `const_cast`, `bit_cast`
Utilities	`move`, `forward`, `exchange`, `clamp`, `midpoint`, `lerp`, `function`, `bind`, `typeid`, `alignas`/`alignof`, placement new, scan algorithms
Libraries	Chrono, Random (engines/distributions), Regex (search/replace/validate), Filesystem (path/directory/file ops)

⎈ Git — 96 commands

Level	Commands
Basic	`init`, `clone`, `add`, `commit`, `push`, `pull`, `status`, `log`, `diff`, `branch`, `merge`, `tag`, `config`, `stash`, `reset`, `revert`, `restore`, `blame`, `cherry-pick`
Advanced	`rebase -i`, `--onto`, `bisect run`, `submodule`, `worktree`, `format-patch`, `sparse-checkout`, `reflog`, `notes`, `range-diff`, `archive`, `gc`/`prune`, `verify-commit/tag`, `cherry-pick`, `merge --squash` / `--no-ff`

🐧 Linux — 194 commands

Category	Topics
File System	`ls`, `cd`, `mkdir`, `cp`, `mv`, `rm`, `find`, `locate`, `tree`, `tar`, `gzip`, `zip`, `xz`, `ln`, `stat`, `du`, `df`
Text Processing 🆕	`grep` (recursive/invert/context/E), `sed` (replace/delete/print), `awk` (column/sum/pattern), `sort`, `uniq`, `cut`, `tr`, `tee`, `xargs`, `diff`
System 🆕	`echo`, `env`/`export`, `source`, `alias`, `history`, `uname`, `lscpu`, `lsusb`, `lspci`, `apt`, `snap`, `useradd`/`usermod`, `groupadd`, `fdisk`, `lsblk`, `time`, `sleep`, `clear`, `shutdown`, `lsof`, `seq`, `sync`, `dd`
Process	`ps`, `top`, `htop`, `kill`, `killall`, `pkill`, `jobs`, `bg`/`fg`, `nohup`, `nice`/`renice`, `systemctl` (all), `journalctl`, `dmesg`, `uptime`, `free`, `vmstat`, `iostat`, `sar`
Networking	`ping`, `curl`, `wget`, `ip`, `ss`, `netstat`, `traceroute`, `nslookup`, `dig`, `whois`, `nc`, `telnet`, `ssh`, `scp`, `rsync`, `nmap`, `tcpdump`
Permissions	`chmod` (all forms), `chown`, `chgrp`, `umask`, `sudo`, `su`, `getfacl`/`setfacl`, `user`/`group` management, `crontab`, `screen`, `tmux`

Intelligent Search Engine

The V3 search engine understands developer intent using a multi-stage search pipeline:

Stage	What it does
1. Exact Match	Checks if query matches a snippet title or alias exactly
2. Intent Map	300+ natural language mappings (`"sort vector"` → `sort`, `custom comparator`)
3. Fuzzy Search	Fuse.js-powered fuzzy matching with weighted keys (title×4 > aliases×3 > tags×3 > keywords×2)
4. Prefix/Substring	Matches prefix and substring patterns for partial queries

You type	It finds
`string to lower`	`tolower()`, `transform()`, `lowercase string`
`reverse vector`	`reverse()`, `reverse range`, `reverse array two pointers`
`remove duplicates`	`unique()`, `erase-remove idiom`, `set unique elements`
`sort pair by second`	`sort pair by second`, `custom comparator sort`
`binary search`	`binary_search()`, `lower_bound()`, `upper_bound()`
`split string`	`stringstream`, `getline`, `string split by delimiter`
`check if key exists`	`find()`, `count()`, `contains key`
`fast io`	`fast io`, `competitive programming setup`
`dijkstra`	`dijkstra algorithm`, `shortest path`
`semaphore`	`threading lock`, `mutex`, `semaphore`

Installation

From VS Code Marketplace

Open Visual Studio Code
Go to Extensions (Ctrl + Shift + X)
Search for OpenGuido
Click Install
Reload VS Code if prompted

Direct link: marketplace.visualstudio.com/items?itemName=HarshBarnawa.openguido

From Website

Visit openguido.vercel.app to browse the full documentation, search snippets online, and learn more about OpenGuido before installing.

How To Use

Command Palette

Press Ctrl + Shift + P
Type:

OpenGuido: Search Snippet

Press Enter
Search for any syntax, command, or snippet

Show Statistics

Press Ctrl + Shift + P
Type:

OpenGuido: Show Statistics

View snippet counts by language and category

Available Actions

For Code Snippets:

Preview Snippet
Copy To Clipboard
Insert Into Editor

For Commands:

Preview Command
Copy To Clipboard

Example Searches

# Python
dict comprehension
list sort reverse
lambda map filter
async await gather
dataclass frozen
pandas read csv groupby
requests get json

# C++
vector sort
make_shared unique_ptr
lambda capture
unordered_map find
binary search lower_bound
ranges filter transform
co_yield generator
std::format
constexpr if

# Git
git rebase interactive
git stash pop
git bisect run
git submodule update --init

# Linux
grep -r recursive
sed replace in-place
awk print column
chmod 755
systemctl status

Dataset Stats

Language	Snippets	Files
C++	674+	23
Python 🆕	194+	9
Git	96	2
Linux	194+	6
Total	1158+	40

Version

Current Version: 3.0.0

What's New in V3

Python dataset — 194+ snippets covering everything from basics to OOP, standard library, async, NumPy, and Pandas
Fuse.js fuzzy search — intelligent weighted search with title > aliases > tags > keywords ranking
Intent map engine — 300+ natural-language-to-snippet mappings
Linux expansion — text processing (grep/sed/awk/sort) and system commands (apt/user/disk)
Git expansion — 20+ advanced commands added (worktree, bisect run, commit --amend, log --grep)
C++ expansion — templates, type traits, design patterns, CP patterns, C++20/23 features
Enhanced snippet metadata — aliases, keywords, weight scores on every snippet

Roadmap

Planned additions:

Java
JavaScript / TypeScript
Docker / Kubernetes
SQL
React
Node.js
Rust
Go
Documentation website (Next.js / Vite)

Author

Harsh Barnawa

License

MIT License — see LICENSE for details.