90 lines
1.8 KiB
Go
90 lines
1.8 KiB
Go
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package helpers
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import (
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"strings"
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"unicode/utf8"
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)
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func RemoveMultiLineCommentIndent(prefix string, text string) string {
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// Figure out the initial indent
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indent := 0
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seekBackwardToNewline:
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for len(prefix) > 0 {
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c, size := utf8.DecodeLastRuneInString(prefix)
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switch c {
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case '\r', '\n', '\u2028', '\u2029':
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break seekBackwardToNewline
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}
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prefix = prefix[:len(prefix)-size]
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indent++
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}
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// Split the comment into lines
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var lines []string
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start := 0
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for i, c := range text {
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switch c {
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case '\r', '\n':
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// Don't double-append for Windows style "\r\n" newlines
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if start <= i {
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lines = append(lines, text[start:i])
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}
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start = i + 1
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// Ignore the second part of Windows style "\r\n" newlines
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if c == '\r' && start < len(text) && text[start] == '\n' {
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start++
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}
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case '\u2028', '\u2029':
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lines = append(lines, text[start:i])
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start = i + 3
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}
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}
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lines = append(lines, text[start:])
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// Find the minimum indent over all lines after the first line
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for _, line := range lines[1:] {
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lineIndent := 0
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for _, c := range line {
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if c != ' ' && c != '\t' {
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break
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}
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lineIndent++
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}
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if indent > lineIndent {
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indent = lineIndent
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}
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}
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// Trim the indent off of all lines after the first line
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for i, line := range lines {
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if i > 0 {
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lines[i] = line[indent:]
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}
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}
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return strings.Join(lines, "\n")
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}
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func EscapeClosingTag(text string, slashTag string) string {
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i := strings.Index(text, "</")
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if i < 0 {
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return text
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}
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var b strings.Builder
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for {
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b.WriteString(text[:i+1])
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text = text[i+1:]
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if len(text) >= len(slashTag) && strings.EqualFold(text[:len(slashTag)], slashTag) {
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b.WriteByte('\\')
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}
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i = strings.Index(text, "</")
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if i < 0 {
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break
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}
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}
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b.WriteString(text)
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return b.String()
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}
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