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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>
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