Pascal → Bascom BASIC
Below is a single document that contains: Part A — Source (Restricted Pascal) Part B — Generated BASIC (Bascom-compatible, stacks for params/returns, minimal line numbers) Calling convention: Notes
The prompt journey from Structured Basic
(from first prompt to full parameter-stack model) Prompt 1 User: write a C++ program that parses a basic program and replaces all occurrences if {} wrapped names with a line number Assistant: Structured BASIC Generated BASIC Prompt 2 User: the input should not have line numbersyes, and maybe we can just have labels without the …
More ChatGPT code generation
I asked ChatGPT to convert a PHP program to Go, then to Pascal and then to a customised dialect of Basic, it did a pretty good job at Go and Pascal, but what surprised me was how it managed to do the customed Basic dialect pretty good too, it’s not perfect, there is no PostgreSQL …
When One Cache Isn’t Enough: Diagnosing a Bidirectional Expiry Bug Humans and AI Both Miss
🧩 TL;DR: A subtle expireAfterAccess bug in a dual-cache setup caused thousands of evictions in a small cache — even for reused keys. The root cause? Only one side of the bidirectional cache was touched on read, leading to silent expiry in the reverse map. This engineering postmortem breaks down how different experience levels (from …
Handling repeatable Java annotations
📘 @PolicyScope Annotation System This document explains how to define, use, and enforce repeatable @PolicyScope annotations in a Spring Boot application using Aspect-Oriented Programming (AOP). 🧩 Purpose @PolicyScope is a repeatable annotation used to declare one or more logical access scopes on a method. These scopes can be inspected at runtime to enforce access control …
About time
✅ System Architecture Summary Layer Timezone Setting Purpose JVM (Java) Asia/Kolkata (+05:30) Governs now() calls and default serialization of time values JDBC / Hibernate UTC Ensures consistent, zone-neutral storage and retrieval in the database PostgreSQL Server America/Denver Controls how TIMESTAMPTZ values are interpreted/displayed in SQL tools API Output Asia/Kolkata JVM re-applies India zone on deserialization …
UNICODE. What is it?
This document introduces the Unicode character set — what it is, why it exists, and how it’s encoded using formats such as UTF-8 and UTF-16. It concludes with an overview of how Java internally represents Unicode. 🔤 1. What Is Unicode? Unicode is a universal character set standard designed to consistently represent text from every …
Understanding Time
🕒 Java Developer’s Guide to Understanding Time This comprehensive guide explains how Java developers should think about time, timezones, DST (Daylight Saving Time), and formats like ISO 8601 and RFC 3339. It makes an explicit and critical distinction between the representation of time (format) and the interpretation of time (timezone). Most importantly, it clarifies a …
ChronoGraf: The Future
✅ TL;DR ChronoGraf is a high-performance, Java-based time series analytics platform backed by PostgreSQL.It supports three complementary data modes: Each is available across six fixed UTC-aligned temporal granularities:5s, 1m, 1h, 1d, 1w, 1mo. With mixed-granularity querying, dynamic percentile calculation, and late event correction (via upward propagation), ChronoGraf provides scalable, accurate analytics for: It runs as …
Time Series Service Summary
Overview A comprehensive time series service designed to handle multiple data types and query patterns for event-driven applications. The service supports both aggregated metrics (counting and histograms) and detailed event retrieval with flexible filtering capabilities. Core Functionality Data Types Supported The service handles two primary data categories: Key Features Metrics Storage and Retrieval The service …