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Plug-ins


Here you can refer specification documents of Vnano Plug-ins, providing built-in functions/variables available in Vnano Scripts.

» If you want to implement and load your original plug-ins, see this page

» How to load plug-ins from the scientific calculator "RINPn" is here

Standard Plug-ins

Vnano Standard Plug-ins are a set of official plug-ins providing basic utility features as functions/variables available in Vnano (VCSSL nano) scripts.

How to Get & Use

These standard plug-ins may be bundled with applications (software) on which scripting features in the Vnano are supported. On such applications, features (functions/variables) provided by standard plug-ins are available by default. However, depending with the purpose of the scripting feature of the application, some (or all) of standard plug-ing may not be bundled. See the document of the application for checking which standard plug-ins are available.

Also, if you want to use standard plug-ins on the application (equipped with the script engine of the Vnano) you developed, get source code of plug-ins from the following repository, and compile it.

Development Repository

Vnano Standard Plug-ins are open source software, being developed on the following repository on the GitHub.

License

All Vnano Standard Plug-ins are released under CC0.

System Plug-in Group Specification

Plug-ins providing basic features, e.g.: I/O features, utility features, and so on.

SystemEnvironmentXnci1Plugin
Provides environment-related variables.
Variables: EOL / LF / CR
SystemDataTypeXnci1Plugin
Provides data-type-utility functions/variables.
Variables: INT_MAX / INT_MIN / FLOAT_MAX / FLOAT_MIN_ABS_NORMAL / FLOAT_MIN_ABS_DENORMAL / NAN / INF
Functions: nan(value) / inf(value) / length(array, dimIndex) / rank(array)
SystemTerminalIOXnci1Plugin
Provides I/O functions from/to the terminal.
Variables: print(...) / println(...)
SystemUserIOXnci1Plugin
Provides interactive I/O functions from/to the user.
Functions: popup(message) / alert(message) / confirm(message) / input(message) / input(message, defaultValue)
SystemFileIOXnci1Plugin
Provides I/O functions from/to files.
Variables: READ / WRITE / APPEND / READ_CSV / WRITE_CSV / APPEND_CSV / READ_TSV / WRITE_TSV / APPEND_TSV / READ_STSV
Functions: open(fileName, mode) / open(fileName, mode, encoding) / close(fileId) / flush(fileId) / write(fileId, ...) / writeln(fileId, ...) / read(fileId) / readln(fileId) / countln(fileId) / save(filePath, value) / load(filePath) / exists(filePath) / isdir(directoryPath) / listdir(directoryPath) / mkdir(directoryPath) /
SystemTimeXnci1Plugin
Provides time-utility functions.
Functions: time() / sleep(sleepTime)
SystemTerminationXnci1Plugin
Provides functions for terminating scripts.
Functions: exit() / exit(exitStatusCode) / error(errorMessage)
SystemTestXnci1Plugin
Provides utility functions for testing.
Functions: assert(expectedCondition)

Math Plug-in Group Specification

Plug-ins providing elementary math & statistical functions.

MathElementaryXnci1Plugin
Provides elementary math functions.
Variables: PI
Functons: rad(degree) / deg(radian) / sin(x) / cos(x) / tan(x) / asin(x) / acos(x) / atan(x) / sqrt(x) / ln(x) / log10(x) / pow(x,exponent) / exp(x) / abs(x)
MathStatisticalXnci1Plugin
Provides elementary statistical functions.
Functions: sum(...) / mean(...) / van(...) / van1(...) / sdn(...) / sdn1(...)

Japanese English
Index
News From RINEARN
* VCSSL is developed by RINEARN.

Exevalator v2.4 Released — MCP Support Added, Now Usable as an AI Calculation Tool
2025-11-15 - We've released Exevalator v2.4, our expression-evaluation library. Starting with this version, it supports MCP, making it usable as a calculation tool for AI assistants.

Exevalator v2.3 Released — Now Usable from Python
2025-11-04 - We've released Exevalator v2.3. Starting with this version, you can now use it from Python! With growing demand around AI tool development in mind, we share the details here.

Exevalator Updated — Easy Japanese Localization for Error Messages
2025-10-31 - Exevalator 2.2.2 is out. You can now localize error messages to Japanese with a simple copy-and-paste, and we've included several bug fixes and minor parser adjustments.

Inside RINPn Online: Architecture Overview
2025-10-22 - An inside look at the architecture of the recently launched online version of the RINPn scientific calculator. It's open source, so you can freely modify and reuse it to build your own web calculator (maybe!).

Meet RINPn Online: Use the Scientific Calculator Anywhere, Instantly
2025-10-21 - RINPn, the free scientific calculator, now has an online version you can use instantly in your browser — on both PC and smartphones. Read the announcement for details.

The VCSSL Support AI is Here! — Requires a ChatGPT Plus Account for Practical Performance
2025-08-19 - A new AI assistant for the VCSSL programming language is here to answer your questions and help with coding. This article explains how to use it and showcases plenty of real Q&A and generated code examples.

English Documentation for Our Software and VCSSL Is Now Nearly Complete
2025-06-30 - We're happy to announce that the large-scale expansion of our English documentation with the support of AI — a project that began two years ago — has now reached its initial target milestone.

VCSSL 3.4.52 Released: Enhanced Integration with External Programs and More
2025-05-25 - This update introduces enhancements to the external program integration features (e.g., for running C-language executables). Several other improvements and fixes are also included. Details inside.