isMiddleOfString() — tailwindcss Function Reference

Architecture documentation for the isMiddleOfString() function in is-safe-migration.ts from the tailwindcss codebase.

Function typescript CommandLineInterface Codemods called by 1

Entity Profile

CommandLineInterface→ Codemods→ isMiddleOfString() — tailwindcss Function Reference

Dependency Diagram

graph TD
  d1610c40_828a_2a82_2129_746c9cd742ea["isMiddleOfString()"]
  d5e14c3d_f7c4_162e_96e8_83915119d547["is-safe-migration.ts"]
  d1610c40_828a_2a82_2129_746c9cd742ea -->|defined in| d5e14c3d_f7c4_162e_96e8_83915119d547
  b779d35b_89d6_7939_9231_39f9aa250ab3["isSafeMigration()"]
  b779d35b_89d6_7939_9231_39f9aa250ab3 -->|calls| d1610c40_828a_2a82_2129_746c9cd742ea
  style d1610c40_828a_2a82_2129_746c9cd742ea fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/@tailwindcss-upgrade/src/codemods/template/is-safe-migration.ts lines 222–250

function isMiddleOfString(line: string): boolean {
  let currentQuote: number | null = null

  for (let i = 0; i < line.length; i++) {
    let char = line.charCodeAt(i)
    switch (char) {
      // Escaped character, skip the next character
      case BACKSLASH:
        i++
        break

      case SINGLE_QUOTE:
      case DOUBLE_QUOTE:
      case BACKTICK:
        // Found matching quote, we are outside of a string
        if (currentQuote === char) {
          currentQuote = null
        }

        // Found a quote, we are inside a string
        else if (currentQuote === null) {
          currentQuote = char
        }
        break
    }
  }

  return currentQuote !== null
}