Function escapeForYAMLDoubleQuoted

pkg/workflow/expression_parser.go:491–510

escapeForYAMLDoubleQuoted escapes a string so it can be safely placed inside a YAML double-quoted scalar (i.e. wrapped with "..."). YAML double-quoted scalars interpret \n, \r, \t, \\ and \" escape sequences, so we convert the corresponding actual characters to their two-character backslash represe

(s string)

// to their two-character backslash representations.  After YAML parsing, the values are
// restored, so GitHub Actions receives the expression with the real characters intact.
func escapeForYAMLDoubleQuoted(s string) string {
	var b strings.Builder
	for i := range len(s) {
		switch s[i] {
		case '\\':
			b.WriteString(`\\`)
		case '"':
			b.WriteString(`\"`)
		case '\n':
			b.WriteString(`\n`)
		case '\r':
			b.WriteString(`\r`)
		case '\t':
			b.WriteString(`\t`)
		default:
			b.WriteByte(s[i])
		}
	}
	return b.String()
}