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Full Discussion: Parsing the longest match substring
Top Forums Shell Programming and Scripting Parsing the longest match substring Post 302992830 by RudiC on Thursday 2nd of March 2017 06:26:10 AM
Old 03-02-2017
Stealing from and simplifying Don Cragun's approach - try
Code:
awk -F// -v OFS="\t\t" '
FNR == NR       {l = length($0)
                 pat[l] = pat[l] DL[l] $0
                 DL[l]  = "|"
                 MX = l>MX?l:MX
                 next
                }

                {for (i=MX; i>0; i--)   {if (pat[i] && match($1, pat[i]))       {print $0, substr($1, RSTART, RLENGTH)
                                                                                 next
                                                                                }
                                        }
                 print $0, "No match"
                }
' primary scrambled

This User Gave Thanks to RudiC For This Post:
senhia83
 

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LEARN ABOUT OPENSOLARIS

menu_pattern

menu_pattern(3CURSES)					     Curses Library Functions					     menu_pattern(3CURSES)

NAME

       menu_pattern, set_menu_pattern - set and get menus pattern match buffer

SYNOPSIS

       cc [ flag... ] file... -lmenu  -lcurses	[ library... ]
       #include <menu.h>

       char *menu_pattern(MENU *menu);

       int set_menu_pattern(MENU *menu, char *pat);

DESCRIPTION

       Every  menu has a pattern buffer to match entered data with menu items. set_menu_pattern() sets the pattern buffer to pat and tries to find
       the first item that matches the pattern. If it does, the matching item becomes the current item. If not, the current item does not  change.
       menu_pattern() returns the string in the pattern buffer of menu.

RETURN VALUES

       menu_pattern() returns NULL on error. set_menu_pattern() returns one of the following:

       E_OK		 The routine returned successfully.

       E_SYSTEM_ERROR	 System error.

       E_BAD_ARGUMENT	 An incorrect argument was passed to the routine.

       E_NO_MATCH	 The character failed to match.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       curses(3CURSES), menus(3CURSES), attributes(5)

NOTES

       The header <menu.h> automatically includes the headers  <eti.h> and <curses.h>.

SunOS 5.11							    31 Dec 1996 					     menu_pattern(3CURSES)
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