/usr/bin/fy-filter

Usage: fy-filter [options] [args]

General options:
  --help, -h                       : Display this help message
  --version, -v                    : Display libfyaml version
  --quiet, -q                      : Quiet operation (default false)
  --debug-level, -d <lvl>          : Set debug level (default 3)
  --color, -C <mode>               : Color output (on, off, auto) (default auto)
  --visible, -V                    : Make whitespace and linebreaks visible (default false)
  --dry-run                        : Do not parse/emit

Diagnostic options:
  --disable-diag <x>               : Disable diag error module <x>
  --enable-diag <x>                : Enable diag error module <x>
  --show-diag <x>                  : Show diag option <x> (source, position, type, module)
  --hide-diag <x>                  : Hide diag option <x> (source, position, type, module)

Parser options:
  --include, -I <path>             : Add directory to include path (default )
  --json, -j <mode>                : JSON input mode (no, force, auto) (default auto)
  --resolve, -r                    : Perform anchor and merge key resolution (default false)
  --yaml-1.1                       : Enable YAML 1.1
  --yaml-1.2                       : Enable YAML 1.2
  --yaml-1.3                       : Enable YAML 1.3
  --follow, -l                     : Follow aliases when using paths (default false)
  --sloppy-flow-indentation        : Enable sloppy indentation in flow mode (default false)
  --prefer-recursive               : Prefer recursive instead of iterative algorithms (default false)
  --ypath-aliases                  : Use YPATH aliases (default false)
  --allow-duplicate-keys           : Allow duplicate keys (default false)
  --collect-errors                 : Collect errors instead of outputting directly (default false)
  --disable-accel                  : Disable access accelerators (default false)
  --disable-buffering              : Disable buffering (use unix fd) (default false)
  --disable-mmap                   : Disable mmap usage
  --disable-depth-limit            : Disable depth limit (default false)

Emitter options:
  --indent, -i <indent>            : Set dump indent (default 2)
  --width, -w <width>              : Set dump width (inf for infinite) (default 80)
  --mode, -m <mode>                : Output mode (default original)
                                     (original, block, flow, flow-oneline, json, json-tp, json-oneline, dejson, pretty, flow-compact, json-compact)
  --sort, -s                       : Perform mapping key sort (default false)
  --comment, -c                    : Output comments (experimental) (default false)
  --strip-labels                   : Strip labels when emitting (default false)
  --strip-tags                     : Strip tags when emitting (default false)
  --strip-doc                      : Strip document headers and indicators (default false)
  --strip-empty-kv                 : Strip keys with empty values (default false)
  --null-output                    : Do not generate output
  --no-ending-newline              : Do not generate a final newline
  --preserve-flow-layout           : Preserve layout of single line flow collections
  --indented-seq-in-map            : Indent block sequences in block mappings

Input options:
  --file, -f <file>                : Use given file instead of <stdin>
                                     (a leading '>' in the string is treated as literal content)

Examples:

    Parse and filter YAML document tree starting from the '/foo' path followed by the '/bar' path
  $ fy-filter --file input.yaml /foo /bar

    Parse and filter for two paths (note how a multi-document stream is produced)
  $ fy-filter --file -mblock --filter --file ">{ foo: bar, baz: [ frooz, whee ] }" /foo /baz
  bar
  ---
  - frooz
  - whee

    Parse and filter YAML document in stdin (note how the key may be complex)
  $ echo "{ foo: bar }: baz" | fy-filter "/{foo: bar}/"
  baz