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LIBXO(3) FreeBSD Library Functions Manual LIBXO(3)
NAME
xo_options - common options for libxo-based commands
DESCRIPTION
libxo allows the rendering of data into various output styles, including
text, XML, JSON, and HTML. libxo uses command line options to trigger
rendering behavior. Options are recognised in three forms:
o --libxo <options>
o --libxo=<options>
o --libxo:<brief-options>
The first two forms accept a comma-separated set of words, detailed
below, while the third form accepts a set of letters, also below. The
triggered functionality is identical.
Option Action
color Enable colors/effects for display styles (TEXT, HTML)
flush Flush after each emit call
flush-line Flush each line of output
html Emit HTML output
indent=xx Set the indentation level
info Add info attributes (HTML)
json Emit JSON output
keys Emit the key attribute for keys (XML)
log-gettext Log (via stderr) each gettext(3) string lookup
log-syslog Log (via stderr) each syslog message (via xo_syslog)
no-humanize Ignore the {h:} modifier (TEXT, HTML)
no-locale Do not initialize the locale setting
no-retain Prevent retaining formatting information
pretty Emit pretty-printed output
retain Force retaining formatting information
text Emit TEXT output
underscores Replace XML-friendly
units Add the 'units' (XML) or 'data-units (HTML) attribute
warn Emit warnings when libxo detects bad calls
warn-xml Emit warnings in XML
xml Emit XML output
xpath Add XPath expressions (HTML)
The brief options are a set of single-letter aliases for the longer
terms, used as a single string:
Value Equivalent Token
c
f flush
F flush-line
H html
I info
i<num> indent=<num>
J json
k keys
n no-humanize
P pretty
T text
details:
flush-line performs line buffering, even when the output is not directed
to a TTY device.
info generates additional data for HTML, encoded in attributes using
names that state with "data-".
keys adds a "key" attribute for XML output to indicate that a leaf is an
identifier for the list member.
no-humanize avoids "humanizing" numeric output (see humanize_number(3)
for details).
no-locale instructs libxo to avoid translating output to the current
locale.
no-retain disables the ability of libxo to internally retain "compiled"
information about formatting strings.
underscores can be used with JSON output to change XML -friendly names
with dashes into JSON -friendly name with underscores.
warn allows libxo to emit warnings on stderr when application code make
incorrect calls. warn-xml causes those warnings to be placed in XML
inside the output.
EXAMPLES
The following are three example invocations of ps(1):
ps --libxo json,pretty,warn -ux
ps --libxo=xml -lg
ps --libxo:Hxc 1
SEE ALSO
libxo(3), xo_format(5)
HISTORY
The libxo library first appeared in FreeBSD 11.0.
AUTHORS
libxo was written by Phil Shafer <phil@freebsd.org>.
FreeBSD 14.0-RELEASE-p11 May 11, 2017 FreeBSD 14.0-RELEASE-p11