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package main
func isWhitespace(character byte) bool {
return character == ' ' || character == '\t' || character == '\n' || character == '\r' || character == '\f'
}
func isClosingBrace(sourceLine string) bool {
for characterIndex := 0; characterIndex < len(sourceLine); characterIndex++ {
character := sourceLine[characterIndex]
if isWhitespace(character) {
continue
}
return character == '}' || character == ')'
}
return false
}
func isOpeningBrace(sourceLine string) bool {
for characterIndex := len(sourceLine) - 1; characterIndex >= 0; characterIndex-- {
character := sourceLine[characterIndex]
if isWhitespace(character) {
continue
}
return character == '{' || character == '('
}
return false
}
func isCaseLabel(sourceLine string) bool {
firstNonWhitespaceIndex := 0
for firstNonWhitespaceIndex < len(sourceLine) && isWhitespace(sourceLine[firstNonWhitespaceIndex]) {
firstNonWhitespaceIndex++
}
if firstNonWhitespaceIndex >= len(sourceLine) {
return false
}
contentAfterWhitespace := sourceLine[firstNonWhitespaceIndex:]
if len(contentAfterWhitespace) >= 5 && contentAfterWhitespace[:4] == "case" && isWhitespace(contentAfterWhitespace[4]) {
return true
}
if len(contentAfterWhitespace) >= 7 && contentAfterWhitespace[:7] == "default" {
for characterIndex := 7; characterIndex < len(contentAfterWhitespace); characterIndex++ {
character := contentAfterWhitespace[characterIndex]
if isWhitespace(character) {
continue
}
if character == ':' {
return true
}
break
}
}
if firstNonWhitespaceIndex > 0 {
lastNonWhitespaceIndex := len(sourceLine) - 1
for lastNonWhitespaceIndex >= 0 && isWhitespace(sourceLine[lastNonWhitespaceIndex]) {
lastNonWhitespaceIndex--
}
if lastNonWhitespaceIndex >= 0 && sourceLine[lastNonWhitespaceIndex] == ':' {
return true
}
}
return false
}
func isCommentOnly(sourceLine string) bool {
for characterIndex := range len(sourceLine) {
character := sourceLine[characterIndex]
if isWhitespace(character) {
continue
}
return len(sourceLine) > characterIndex+1 && sourceLine[characterIndex] == '/' && sourceLine[characterIndex+1] == '/'
}
return false
}
func isPackageLine(trimmedLine string) bool {
return len(trimmedLine) > 8 && trimmedLine[:8] == "package "
}
func countRawStringDelimiters(sourceLine string) int {
delimiterCount := 0
insideDoubleQuotedString := false
insideCharacterLiteral := false
for characterIndex := 0; characterIndex < len(sourceLine); characterIndex++ {
character := sourceLine[characterIndex]
if insideCharacterLiteral {
if character == '\\' && characterIndex+1 < len(sourceLine) {
characterIndex++
continue
}
if character == '\'' {
insideCharacterLiteral = false
}
continue
}
if insideDoubleQuotedString {
if character == '\\' && characterIndex+1 < len(sourceLine) {
characterIndex++
continue
}
if character == '"' {
insideDoubleQuotedString = false
}
continue
}
if character == '\'' {
insideCharacterLiteral = true
continue
}
if character == '"' {
insideDoubleQuotedString = true
continue
}
if character == '`' {
delimiterCount++
}
}
return delimiterCount
}
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