sed or awk to parse this text Post: 302449533

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Top Forums Shell Programming and Scripting sed or awk to parse this text Post 302449533 by agama on Monday 30th of August 2010 11:52:04 PM

08-31-2010

Registered User

That's odd. I cut the sample to make sure I hadn't introduced a bug transferring it into the edit window, and was able to process the little bit of data that you posted.

The only thing that I can think of that might be causing issues, and I might not see it without your putting the data in code tags, is the position of the leading asterisk. Is it the very first character on the line? If not, that would prevent the script from seeing it as a section marker and thus it wouldn't print anything.

A small change to the first line would handle the case where it was indented by spaces or tabs:

Code:

        /^[ \t]*[*]/ {                            # new section

If the asterisks are the very first character, then it's possible that the awk isn't being executed at all. You can add this line before the 'new section
line in the script to print all input lines to the standard error device as they are read. This will verify that the script is being invoked and the file you think it is parsing is indeed being parsed.

(new line in bold, first few lines after to show placement, but not the whole thing)

Code:

awk '
        {print;}     # debugging -- print everything

        /^[*]/ {                            # new section 
                if( snarf )
                        printf( "\n" );         # terminate the last section
                snarf = 1;                      # open the section
                n = index( $0, "-" );           # find first -
                printf( "%s ", substr( $0, n+1 ) );     # print everything after the first dash
                next;
        }

Have a go with those ideas. Not sure what it could be otherwise.

agama

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build-lives-rfx-plugin

build-lives-rfx-plugin(1)				      General Commands Manual					 build-lives-rfx-plugin(1)

NAME

       build-lives-rfx-plugin - builds rendered effects for LiVES

SYNOPSIS

       build-lives-rfx-plugin script_name [plugin_dir] -get section file

DESCRIPTION

       This perl script is used by LiVES to compile an RFX (rendered effect) plugin for LiVES. It is generally called from build-lives-rfx-plugin-
       multi for a script which has a language code representing LiVES-perl. The script_name must be  the  full  (absolute)  path  to  the  plugin
       script,	and  plugin_dir  can  be  used to specify the output directory where the compiled plugin should be generated. If plugin_dir is not
       defined then /tmp is assumed.

       The second variant with -get is used to print out a script section from a plugin script to stdout. It is generally only used internally	by
       LiVES.

       Return values The script returns the following values

       0 - success 1 - the value of a trigger was greater than the number of parameters 2 - a value could not be read from the script file 3 - the
       language code of the plugin script was not equivalent to LiVES-perl 4 - the API version level of the plugin script  was	invalid  5  -  the
       <define> section was missing from the plugin script

SEE ALSO

       build-lives-rfx-plugin-multi(1), lives(1)

AUTHOR

       Gabriel Finch a.k.a Salsaman (salsaman@xs4all.nl)

								    May 9 2010						 build-lives-rfx-plugin(1)