Model Application


Report on the PVL statements found in a file label.


PPVL_report [-options] [filename]
This help message.
Report the PVL statement contents of the file.
Count the number of parameters in the file.
Add value counts to the parameter count listing.
-Find name
Find the named parameter.
If name is @filename get the parameter names from the file.


The input file is processed by the PPVL module to obtain an aggregate ("The Container") of all PVL parameters found the in the file header label. Then the file is checked for the presence of a PDS EOL label (a PVL label block that is not in the file header), which is appended to the aggregate if present.

If the input file is not specified, stdin is read by default. Note: EOL labels in a file read from a pipe currently can not be accessed.

With the -report option (the default if no options are specified), all of the PVL parameters found in the file are listed using formal PVL syntax (which may be different than the syntax of the file).

The -count option provides a listing of the name of each aggregate parameter and the number of parameters contained within it. The -values option adds to this listing the name of each parameter and the number of values it contains. The -count option is implicit with the -values option; i.e. both do not need to be specified. At the end of these listings the total number of parameters - and also values for the -values option - in the file is listed.

The -find option lists all occurances of parameters that match the specified name (completely - not a pattern match - but without regard to case), along with all of the parameter's values. If the parameter is an aggregate its entire contents are listed. If the name is immediately preceeded by the '@' character, then it is used as the name of a file containing a list of parameter names, one per line, to find.

Note: Parameter names may specified as the full path that includes all parent parameters (aggregates) starting with the top file aggregate (denoted by an initial '/' character) with additional slash characters separating each parent in the path leading to the desired parameter. Parameter names, including parent paths, that are not anchored to the top file aggregate (with a leading slash) may occur in multiple locations. Parameter names specified by the user may be anchored or not. Parameter names in program listings are always anchored with all parents in the path included.