// Prevent strings from being parsed as directives
// See https://github.com/prettier/prettier/pull/1560#issue-227225960
0;

// Every string will be changed to double quotes, unless we end up with fewer
// escaped quotes by using single quotes. (Vice versa if the "singleQuote"
// option is true).
//
// Note that even if a string already has the correct enclosing quotes, it is
// still processed in order to remove unnecessarily escaped quotes within it,
// for consistency.

// Simple strings.
("abc");
("abc");

// Escape.
("\0");

// Emoji.
("🐶");

// Empty string.
("");
("");

// Single double quote.
('"');
('"');

// Single single quote.
("'");
("'");

// Unnecessary escapes.
("'");
('"');
("a");
("a");
("hola");
("hola");
("hol\\a (the a is not escaped)");
("hol\\a (the a is not escaped)");
("multiple a unnecessary a escapes");
("multiple a unnecessary a escapes");
("unnecessarily escaped character preceded by escaped backslash \\a");
("unnecessarily escaped character preceded by escaped backslash \\a");
("unescaped character preceded by two escaped backslashes       \\\\a");
("unescaped character preceded by two escaped backslashes       \\\\a");
("aa"); // consecutive unnecessarily escaped characters
("aa"); // consecutive unnecessarily escaped characters
("escaped \u2030 ‰ (should not stay escaped)");

// Meaningful escapes
("octal escapes \0 \1 \2 \3 \4 \5 \6 \7");
("octal escapes \0 \1 \2 \3 \4 \5 \6 \7");
("meaningfully escaped alphabetical characters \n \r \v \t \b \f \u2713 \x61");
("meaningfully escaped alphabetical characters \n \r \v \t \b \f \u2713 \x61");
("escaped newline \
");
("escaped carriage return \
");
("escaped \u2028 \
");
("escaped \u2029 \
");

// One of each.
("\"'");
("\"'");

// One of each with unnecessary escapes.
("\"'");
("\"'");

// More double quotes than single quotes.
('"\'"');
('"\'"');

// More single quotes than double quotes.
("\"''");
("\"''");

// Two of each.
("\"\"''");
("\"\"''");

// Single backslash.
("\\");
("\\");

// Backslases.
("\"\\\"\\\\\" ''\\'\\'\\\\'");
('\'\\\'\\\\\' ""\\"\\"\\\\"');

// Somewhat more real-word example.
("He's sayin': \"How's it goin'?\" Don't ask me why.");
("He's sayin': \"How's it goin'?\" Don't ask me why.");

// Somewhat more real-word example 2.
('var backslash = "\\", doubleQuote = \'"\';');
('var backslash = "\\", doubleQuote = \'"\';');