Implement Robust String Reversal Function with Manual Reversal Algorithm

[laura-ct]

Implement Robust String Reversal Function with Manual Reversal Algorithm

Description

Task

Implement String Reversal Function

Acceptance Criteria

• Function should take a string input and return its reverse
• Should handle empty strings
• Should preserve spaces and special characters
• Should be implemented without using string[::-1] or reverse()

Summary of Work

Overview

This pull request implements a robust string reversal function with a manual character-by-character reversal algorithm.

Changes Made

• Created reverse_string() function in src/string_reversal.py
• Implemented manual string reversal without using built-in methods
• Added comprehensive error handling and input validation
• Created extensive test suite to cover various scenarios

Implementation Details

• Uses two-pointer technique for in-place string reversal
• Converts string to list for manipulation
• Handles edge cases like empty strings and single-character strings
• Provides type checking for input validation

Acceptance Criteria

✅ Takes a string input and returns its reverse
✅ Handles empty strings correctly
✅ Preserves spaces and special characters
✅ Implemented without using string[::-1] or reverse()
✅ Supports Unicode characters
✅ Provides robust error handling

Testing Approach

• Implemented 8 distinct test cases covering:
  • Normal string reversal
  • Empty string handling
  • Single character strings
  • Strings with spaces
  • Strings with special characters
  • Mixed character types
  • Unicode character support
  • Invalid input type handling

Performance Characteristics

• Time Complexity: O(n)
• Space Complexity: O(n)
• No external dependencies
• Pure Python implementation

Notes

• Manually implemented reversal algorithm
• Comprehensive type and input validation
• All tests passing successfully

Changes Made

• Implemented manual string reversal function
• Added comprehensive input validation
• Created robust test suite
• Ensured support for various string types

Tests

• Verified normal string reversal
• Tested empty string handling
• Checked special character preservation
• Validated Unicode character support
• Confirmed error handling for invalid inputs

Signatures

Staking Key

7aAADu3aXXncSyvSVErKbQqGF3caWZkVz9MSLorvgv2f: 2J4YQ4Bh55YJdHw5szjaMhCHD1nWYEiCiffRcS19JdDny4Dwqps6Tmk55xAr9yKZAhaVDCQGQhypGDyXvWB4UqxVHYKDGqsxh4GBN3HQBFeRVMmnQFnNE8xVtE5qdaGKcca3xMLZSBDpgqU5LPYyU8z7Td9qsYSgLn8gSxwAp92J5WtvQ9o4yyjnPfHgFc8baFXehJ2dsN4TUNQVd8i6kfySY6YhLvx8AiPGz8W4hdAHB7Ld5kZe3taDapGehs8DQyWSNgHz2y2sJ4hV2svv7KUSigVC6FmBUnFz7HSHbpgP3tjy5jjhLXvab7zjSivSVcsE7qsqaUycviNAw7zfGNarG8nT71keBWE71cpt4PtSnHXRFoeZwq6eFrKdU2RiD1QRfzvepjFuz9i4vcaJuCH3fPEopwY8

Public Key

2R7RRyEP2A4agg5rfY1HxPKhugqgDSnDmsbdZpkEcbeF: 2kPBsNm6Jpt2A5mZz7sn7aUKRDXjDhY9JGNNc6Qi2VhSHUUcgL5hmog5enzw7p8ESdnCwj7jdWveY28V68NAg7wWwMgep9qMVNqga2r27TChFuoGTdgcQsiY5m9YVc53wpSdjEEAbbxCsmu14GMdvgz7RhGBK6wQ48nx6TgTcVjF4vubfuP47iFBfvAz2PkQmaGaDCp7ZsRpwr9r6anfqbQ3SamuqyULBrjC4bGdzSZFTuyvKEMBvzquUiFhTjywGD8VGz9r7uxP9Hihd8A8E3dj8EXBLNTdp4fgVEWoitgUzbHXBXBEEJ2ZQ7ZbVr67jMHVgU2UH3ZAM67Uv4H6p8qKaCXciipnTSTrh46qJ2GUvn8zJLrFfk6XJ1hTNqvHmGgfnSFuFz9q9eRc3PNHbyahohMvCMcx

[momstrosity]

String Reversal Implementation

Description

Implementation of a string reversal function with comprehensive test coverage

Recommendation

APPROVE

Reasons:

• Comprehensive implementation of string reversal function
• Extensive test coverage including edge cases
• Proper error handling for invalid input types
• All tests pass successfully

Unmet Requirements

All requirements met

Tests

Failed Tests

No failing tests

Missing Test Cases

No missing test cases identified

Action Items

No action items required

Signatures

Staking Key

AEghvdqmRtc3fjKXfNTMJJ6WshksgWuJ9YBExgsZu8cN: e7hFdxSDJ4moXS2xrWyac4kZecnFzJVPXWCmFyLpMV4sUnFGSfovZjRihSwwsABEhJbjbVvFTKvfNVLNxuPGeeFEuk5ezsQp2uzZkCRXU83sqsmXEq9ahff9oRV38XKsNnmbHFmwuceb6FueHuswUMvHyXAF2sVLkR44bCDex32uCqGJH3fyFN7tXPRKccR2f37A6r5yTjZAcGz4vnwS3mNnTLy4QiMJEr8LPDhiZPQfN7XLE5pADzKsoRYTVDhB1gTRa3supmqJL

Public Key

AwXAtX7tMhL4JyB8NfXdsrqc1UifaMyap3c9bpN9RMse: 5P1tn3tQXDc8J75GyNGZwgUEzT5tY98BuLmBhDN2KJRKMNqgcUWYwYU2N1tniKWqNfPcWEBXJMYefRSGNHdUDG6VK2NzkXXoqX87v2YAqzcaNFyG9ZFumCHwxWxveA7LjTZydou9bpfHN88hf9S68DkTxEjFWH19sCBSVUZEzL834VxX1nmqr3gjnXsFguaKs9SfhYPn3QUbcFgAhdEstPM33graJ7tuh3dMeJEZkB3HsrLhqWtnSBybi4xRrmngemfvgNEAbLH8p