Tamil Visai Palagai ((top)) Link

Feature Name: Smart Tamil Visai Palagai (The Adaptive Tamil Input Engine) 1. Feature Overview (The "Elevator Pitch") The Smart Tamil Visai Palagai is an intelligent input method designed to solve the biggest pain point in Tamil digital communication: the friction between the Tamil 99 keyboard layout and the traditional Typewriter layout . This feature introduces an Adaptive Layout Engine that allows users to switch between layouts seamlessly, predict complex Tamil characters (uyirmei) before they are fully typed, and automatically transliterate English loanwords into Tamil script.

2. Core Components A. The "Dual-Core" Layout Switcher Most Tamil typists are forced to choose between the modern "Tamil 99" standard or the legacy "Typewriter" layout. This feature removes that barrier.

How it works: A simple toggle gesture (swiping the spacebar left or right) instantly switches the key mapping between Tamil 99 and Typewriter layouts without changing the visual skin of the keyboard. User Benefit: Users who learned typing on physical machines can use the layout they know, while digital natives can use the optimized Tamil 99 layout, all within the same app.

B. Predictive Uyirmei (Combinatorial Logic) Typing Tamil compound characters (Uyirmei) usually requires multiple keystrokes (e.g., typing a consonant + a vowel modifier).

How it works: As the user types a consonant (e.g., 'க்'), the engine immediately suggests the most likely compound characters based on linguistic frequency. If the user types 'க்', the suggestions show 'கா', 'கே', 'கை' before the user even types the modifier key. User Benefit: Reduces keystrokes by approximately 40%, increasing typing speed significantly.

C. Intelligent Tanglish (Transliteration) Mode Many Tamil speakers mix English and Tamil (Tanglish) when typing.

How it works: The keyboard detects Romanized English words and suggests the Tamil equivalent in real-time.

Input: "Nandri" Suggestion: "நன்றி"

Smart Dictionary: It recognizes English loanwords commonly used in Tamil (like "Computer," "Bus," "Mobile") and transliterates them phonetically into Tamil script (கண்ணாடி/கம்ப்யூட்டர்) if desired.

3. User Experience (UX) & UI Visual Design: The "Crystal Palagai"

Dynamic Key Resizing: Keys expand or contract slightly based on predictive probability. The most likely next character becomes slightly larger, making it easier to tap (Fitts’s Law). Vowel Indicators: On the Tamil 99 layout, vowel modifiers (pulli) are often hard to distinguish visually. This feature adds subtle color-coding to the vowel modifiers to reduce eye strain.

Accessibility: Voice-to-Visai