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.Dd May 13, 2016 .Dt jsesc 1 .Sh NAME .Nm jsesc .Nd escape strings for use in JavaScript string literals .Sh SYNOPSIS .Nm .Op Fl s | -single-quotes Ar string .br .Op Fl d | -double-quotes Ar string .br .Op Fl w | -wrap Ar string .br .Op Fl e | -escape-everything Ar string .br .Op Fl 6 | -es6 Ar string .br .Op Fl l | -lowercase-hex Ar string .br .Op Fl j | -json Ar string .br .Op Fl p | -object Ar string .br .Op Fl p | -pretty Ar string .br .Op Fl v | -version .br .Op Fl h | -help .Sh DESCRIPTION .Nm escapes strings for use in JavaScript string literals while generating the shortest possible valid ASCII-only output. .Sh OPTIONS .Bl -ohang -offset .It Sy "-s, --single-quotes" Escape any occurrences of ' in the input string as \\', so that the output can be used in a JavaScript string literal wrapped in single quotes. .It Sy "-d, --double-quotes" Escape any occurrences of " in the input string as \\", so that the output can be used in a JavaScript string literal wrapped in double quotes. .It Sy "-w, --wrap" Make sure the output is a valid JavaScript string literal wrapped in quotes. The type of quotes can be specified using the .Ar -s | --single-quotes or .Ar -d | --double-quotes settings. .It Sy "-6, --es6" Escape any astral Unicode symbols using ECMAScript 6 Unicode code point escape sequences. .It Sy "-e, --escape-everything" Escape all the symbols in the output, even printable ASCII symbols. .It Sy "-j, --json" Make sure the output is valid JSON. Hexadecimal character escape sequences and the \\v or \\0 escape sequences will not be used. Setting this flag enables the .Ar -d | --double-quotes and .Ar -w | --wrap settings. .It Sy "-o, --object" Treat the input as a JavaScript object rather than a string. Accepted values are flat arrays containing only string values, and flat objects containing only string values. .It Sy "-p, --pretty" Pretty-print the output for objects, using whitespace to make it more readable. Setting this flag enables the .It Sy "-l, --lowercase-hex" Use lowercase for alphabetical hexadecimal digits in escape sequences. .Ar -o | --object setting. .It Sy "-v, --version" Print jsesc's version. .It Sy "-h, --help" Show the help screen. .El .Sh EXIT STATUS The .Nm jsesc utility exits with one of the following values: .Pp .Bl -tag -width flag -compact .It Li 0 .Nm successfully escaped the given string and printed the result. .It Li 1 .Nm wasn't instructed to escape anything (for example, the .Ar --help flag was set); or, an error occurred. .El .Sh EXAMPLES .Bl -ohang -offset .It Sy "jsesc 'foo bar baz'" Print an escaped version of the given string. .It Sy echo\ 'foo bar baz'\ |\ jsesc Print an escaped version of the string that gets piped in. .El .Sh BUGS jsesc's bug tracker is located at <https://github.com/mathiasbynens/jsesc/issues>. .Sh AUTHOR Mathias Bynens <https://mathiasbynens.be/> .Sh WWW <https://mths.be/jsesc>