Go-Reloaded

A text modification tool written in Go that reads an input file, applies a set of transformation rules, and writes the result to an output file.

Usage

go run . <input_file> <output_file>

The program takes exactly two arguments:

• input_file – the file containing the text to be modified.
• output_file – the file where the modified text will be written.

Supported Modifications

Hexadecimal and Binary Conversion

• (hex) – Replaces the preceding word (a hexadecimal number) with its decimal equivalent.
  • "1E (hex) files were added" → "30 files were added"
• (bin) – Replaces the preceding word (a binary number) with its decimal equivalent.
  • "It has been 10 (bin) years" → "It has been 2 years"

Case Conversion

• (up) – Converts the preceding word to uppercase.
  • "Ready, set, go (up) !" → "Ready, set, GO!"
• (low) – Converts the preceding word to lowercase.
  • "I should stop SHOUTING (low)" → "I should stop shouting"
• (cap) – Capitalizes the preceding word (title case).
  • "Welcome to the Brooklyn bridge (cap)" → "Welcome to the Brooklyn Bridge"

Each of these case tags also supports an optional number argument to apply the conversion to multiple preceding words:

• (up, <number>) / (low, <number>) / (cap, <number>)
  • "This is so exciting (up, 2)" → "This is SO EXCITING"

Punctuation Formatting

Punctuation marks (. , ! ? : ;) are moved to be directly after the preceding word with a space before the next word:

• "I was sitting over there ,and then BAMM !!" → "I was sitting over there, and then BAMM!!"

Groups of punctuation like ... or !? are kept together and attached to the preceding word:

• "I was thinking ... You were right" → "I was thinking... You were right"

Quotation Marks

Single quotes (') are paired and placed directly around the enclosed word(s) with no extra spaces:

• "I am exactly how they describe me: ' awesome '" → "I am exactly how they describe me: 'awesome'"
• "As Elton John said: ' I am the most well-known homosexual in the world '" → "As Elton John said: 'I am the most well-known homosexual in the world'"

Indefinite Article Correction

a is automatically changed to an when the next word begins with a vowel (a, e, i, o, u) or h:

• "There it was. A amazing rock!" → "There it was. An amazing rock!"

Implementation Details

The program processes transformations in the following order:

1. Tag processing (tags) – Handles (hex), (bin), (up), (low), (cap) and their numbered variants.
2. Quote formatting (quote) – Pairs single quotes and attaches them to enclosed words.
3. Punctuation formatting (punc) – Adjusts spacing around punctuation marks.
4. Article correction (article) – Converts a to an before vowel/h-initial words.

Dependencies

• golang.org/x/text – Used for title-case (capitalization) via cases.Title.

Author

Victor