egghelp/eggheads community

removing string from a list.

2008-02-29T20:52:14-04:00

Thanks Sir_Fz; help from you are always handy and appreciated
i resolved that issue but this is much simpler than I could think of.

Statistics: Posted by honeybee — Fri Feb 29, 2008 8:52 pm

removing string from a list.

2008-02-29T12:38:35-04:00

Code:

if {[lsearch -exact $dynamicList "aa"] == -1} { lremove $staticList "aa"}

Statistics: Posted by Sir_Fz — Fri Feb 29, 2008 12:38 pm

removing string from a list.

2008-02-28T22:04:51-04:00

Code:

proc lremove { list what } {while { [set pos [lsearch -exact $list $what]] != -1 } {set list [lreplace $list $pos $pos]}return $list}# example:# set list "aa bb cc"# set list [lremove $list "bb"] will set list to "aa cc"

its useful when we need to remove a string from a list but sometimes we need to compare two lists and remove items from one list from other if not found.

# example:
# set staticList {aa bb cc dd ee}
# set dynamicList {bb cc dd ee}

Now we need to remove aa from staticList as its not present in dynamicList what are the possibilities.

Sorry for my previous post I didn't make much sense and moved my post from Tcl Faq where proc lremove was posted by Sky to Tcl Help I think it best fits here.

Statistics: Posted by honeybee — Thu Feb 28, 2008 10:04 pm