11f8ca01b7
from 1.0.0:
Add "continuation" flag, to allow multiple "xo" invocations in a single line of output (#58)
Add --top-wrap to make top-level JSON wrappers
Add --{open,close}-{list,instace} options
Add xo_xml_leader(), to detect use of some bogus XML tags. It's still bad form, but it's a little safer now
Avoid call to xo_write before xo_flush, since the latter calls the former
Check return code from xo_flush_h properly (<0) (FreeBSD Bug 236935)
For JSON output, avoid newline before a container's close brace (#62)
Merge branch 'text_only' of https://github.com/zvr/libxo into zvr-text_only
Use XO_USE_INT_RETURN_CODES, not USE_INT_RETURN_CODES
add docs for --continuation
add docs for --not-first
call xo_state_set_flags before values and close containers; add XOIF_MADE_OUTPUT flag to track state; make proper empty JSON objects in xo_finish
color_map code has to be #ifdef'd out, since the struct definition
correct xo_flush_func_t (doesn't use xo_ssize_t)
make depth change for --top-wrap only for JSON
fix to handle --top-wrap in "xo" by being more consistent with handling trailing newlines
fix to handle text-only version #64 (from zvr)
fix xo_buf_has_room for round up to the next XO_BUFSIZ, not just add XO_BUFSIZ to the size (FreeBSD Bug 236937)
update docs for new "xo" options
update functions to use xo_ssize_t
update test cases
from 1.0.1:
Add EINTEGRITY to .pot files under test/gettext/ (fix from FreeBSD)
from 1.0.2:
handle failure from xo_vnsprintf; don't add -1 to "rc"
PR: 236937, 236935
Submitted by: phil
Reported by: Alfonso S. Siciliano <alfix86@gmail.com>
MFC after: 2 weeks
212 lines
4.5 KiB
Groff
212 lines
4.5 KiB
Groff
.\" #
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.\" # Copyright (c) 2014, Juniper Networks, Inc.
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.\" # All rights reserved.
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.\" # This SOFTWARE is licensed under the LICENSE provided in the
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.\" # ../Copyright file. By downloading, installing, copying, or
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.\" # using the SOFTWARE, you agree to be bound by the terms of that
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.\" # LICENSE.
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.\" # Phil Shafer, July 2014
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.\"
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.Dd December 4, 2014
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.Dt XO 1
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.Os
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.Sh NAME
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.Nm xo
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.Nd emit formatted output based on format string and arguments
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.Sh SYNOPSIS
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.Nm
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.Op Fl options
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.Op Ar argument...
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.Sh DESCRIPTION
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The
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.Nm
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utility allows command line access to the functionality of
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the
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.Nm libxo
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library.
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Using
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.Nm ,
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shell scripts can emit
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.Em XML ,
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.Em JSON ,
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or
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.Em HTML
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using the same commands that emit text output.
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.Pp
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.Bl -tag -width indent
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.It Ic --close Ar path
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Close tags for the given path
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.It Ic -C | Ic --continuation
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Indicates this output is a continuation of the previous output data
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and should appear on the same line.
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This is allows HTML output to be constructed correctly.
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.It Ic --depth Ar num
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Set the depth for pretty printing
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.It Ic --help
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Display help text
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.It Ic -H | Ic --html
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Generate HTML output
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.It Ic -J | Ic --json
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Generate JSON output
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.It Ic --leading-xpath Ar path
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Add a prefix to generated XPaths (HTML)
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.It Ic --not-first
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Indicate that this content is not the first in a series of sibling
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objects, which is vital information for "JSON" output, which requires
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a comma between such objects.
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.It Ic --open Ar path
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Open tags for the given path
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.It Ic -p | Ic --pretty
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Make 'pretty' output (add indent, newlines)
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.It Ic --style Ar style
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Generate given style (xml, json, text, html)
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.It Ic -T | Ic --text
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Generate text output (the default style)
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.It Ic --top-warp
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Indicates the entire object should be placed inside a top-level
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object wrapper, specifically when generating JSON output.
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.It Ic --version
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Display version information
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.It Ic -W | Ic --warn
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Display warnings in text on stderr
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.It Ic --warn-xml
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Display warnings in xml on stdout
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.It Ic --wrap Ar path
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Wrap output in a set of containers
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.It Ic -X | Ic --xml
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Generate XML output
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.It Ic --xpath
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Add XPath data to HTML output
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.El
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.Pp
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The
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.Nm
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utility accepts a format string suitable for
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.Xr xo_emit 3
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and a set of zero or more arguments used to supply data for that string.
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.Pp
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In addition,
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.Nm
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accepts any of the
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.Nm libxo
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options listed in
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.Xr xo_options 7 .
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.Sh EXAMPLES
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In this example,
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.Nm
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is used to emit the same data encoded in text and then in XML by
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adding the "-p" (pretty) and "-X" (XML output) flags:
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.Bd -literal -offset indent
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% xo 'The {:product} is {:status}\\n' stereo "in route"
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The stereo is in route
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% xo -p -X 'The {:product} is {:status}\\n' stereo "in route"
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<product>stereo</product>
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<status>in route</status>
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.Ed
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.Pp
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In this example, the output from a
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.Nm
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command is shown in several styles:
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.Bd -literal -offset indent
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xo "The {k:name} weighs {:weight/%d} pounds.\\n" fish 6
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.Pp
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TEXT:
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The fish weighs 6 pounds.
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XML:
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<name>fish</name>
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<weight>6</weight>
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JSON:
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"name": "fish",
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"weight": 6
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HTML:
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<div class="line">
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<div class="text">The </div>
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<div class="data" data-tag="name">fish</div>
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<div class="text"> weighs </div>
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<div class="data" data-tag="weight">6</div>
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<div class="text"> pounds.</div>
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</div>
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.Ed
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.Pp
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The
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.Fl "-wrap <path>"
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option can be used to wrap emitted content in a
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specific hierarchy.
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The path is a set of hierarchical names separated
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by the '/' character.
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.Bd -literal -offset indent
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xo --wrap top/a/b/c '{:tag}' value
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.Pp
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XML:
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<top>
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<a>
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<b>
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<c>
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<tag>value</tag>
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</c>
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</b>
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</a>
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</top>
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JSON:
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"top": {
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"a": {
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"b": {
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"c": {
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"tag": "value"
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}
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}
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}
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}
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.Ed
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.Pp
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The
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.Fl "\-open <path>"
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and
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.Fl "\-close <path>"
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can be used to emit
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hierarchical information without the matching close and open
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tag.
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This allows a shell script to emit open tags, data, and
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then close tags.
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The
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.Fl \-depth
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option may be used to set the
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depth for indentation.
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The
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.Fl "\-leading-xpath"
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may be used to
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prepend data to the XPath values used for HTML output style.
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.Bd -literal -offset indent
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#!/bin/sh
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xo --open top/data
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xo --depth 2 '{tag}' value
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xo --close top/data
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.Pp
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XML:
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<top>
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<data>
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<tag>value</tag>
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</data>
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</top>
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JSON:
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"top": {
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"data": {
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"tag": "value"
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}
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}
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.Ed
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.Sh SEE ALSO
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.Xr libxo 3 ,
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.Xr xo_emit 3 ,
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.Xr xo_options 7
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.Sh HISTORY
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The
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.Nm libxo
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library first appeared in
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.Fx 11.0 .
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.Sh AUTHORS
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.Nm libxo
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was written by
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.An Phil Shafer Aq Mt phil@freebsd.org .
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