How to Convert Text Case

Problem

You have text in one naming convention and need it in another for a different programming language or style guide.

Prerequisites

• Understanding of naming conventions
• Familiarity with word boundaries

Steps

1. 1. Identify the source convention

   Determine the current case: camelCase (lowercase first, capitals at word boundaries), snake_case (underscores), kebab-case (hyphens), PascalCase (capital first), or SCREAMING_SNAKE. Detecting the source convention correctly is essential for accurate conversion.

   Input

   camelCase: myVariableName

   Output

   convention identified

2. 2. Split into words

   Parse the text into individual words by detecting boundaries: underscores, hyphens, capital letters (for camelCase/PascalCase), or spaces. Handle consecutive capitals carefully (e.g., 'HTTPServer' → 'HTTP' + 'Server').

   Input

   myVariableName

   Output

   words: [my, Variable, Name]

3. 3. Rejoin in the target convention

   Combine the words using the target convention's separator and capitalization. For snake_case, join with underscores in lowercase. For camelCase, lowercase the first word and capitalize the rest. For kebab-case, join with hyphens in lowercase.

   Input

   words + target: snake_case

   Output

   my_variable_name

Expected result

Text correctly converted to the target naming convention.

Common errors

Consecutive capitals split incorrectly

Words like 'XMLParser' should split into 'XML' and 'Parser', not 'X', 'M', 'L', 'Parser'. Use a converter that handles consecutive capitals intelligently.

Acronyms lowercased incorrectly

Some conventions preserve acronyms (e.g., 'parseXML' not 'parseXml'). Check your converter's acronym handling.

Troubleshooting

• If the output looks wrong, check how the source was split into words.
• Test with edge cases like single words, all-caps, and mixed separators.

Security limits

• Case conversion is a pure text transformation with no security implications.