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