Template: Strcat matching

[ownedbycats]

Currently, I have a column icon template like this:

program: 
   f = field('#taglike');
  strcat
   (    contains(f, "^foobar|foo bar$", 'foobar.png:', ''), 
    contains(f, "foo", 'foo.png:', ''), 
    contains(f, "bar", 'bar.png:', ''), 
    contains(f, "test", 'test.png:', ''), 
   )

It shows icons for whatever values are in the column, e.g. "foo, test"returns "foo.png:test.png"

However, how would I display an icon if the values do not match any existing ones? e.g.:

Value: Unknown
Results: Unknown.png

Value: Unknown, Undefined
Results: Unknown.png

Value: Unknown, foobar
Results: foobar.png

[capink]

does the below template do what you want?

program:
    f = field('#taglike');
    icons = '';
    sep = ':';
    for keyword in 'foo,bar,test':
        val = contains(f, keyword, strcat(keyword, '.png'), '');
        if val then
            icons = list_union(icons, val, sep)
        fi
    rof;
    ifempty(icons, 'unknown.png')

[ownedbycats]

Not quite though I will save that if it comes in useful for something else. The problem is that a lot of my icons don't exactly match the keywords, e.g.

contains(f, "^Some Movie|Some Other Movie$", 'Film.png:', ''), 
contains(f, "One Entry of a Game Series", 'iconforseries.png:', ''),

[capink]

program:
    f = field('#taglike');
    icons = '';
    sep = ':';
    icon_expression = 'film.png=^Some Movie|Some Other Movie$,iconforseries.png=One Entry of a Game Series';
    for item in icon_expression:
        icon = re(item, '(.+)=(.+)', '\1');
        expression = re(item, '(.+)=(.+)', '\2');
        val = contains(f, expression, icon, '');
        if val then
            icons = list_union(icons, val, sep)
        fi
    rof;
    ifempty(icons, 'unknown.png')

[ownedbycats]

I will try that.

Another thing I thought of: perhaps I could change my existing rule to a non-composed rule (which will stop other rules after it) and make a second rule saying "if field is populated, put unknown.png."

[chaley]

Originally Posted by ownedbycats

I will try that.

Another thing I thought of: perhaps I could change my existing rule to a non-composed rule (which will stop other rules after it) and make a second rule saying "if field is populated, put unknown.png."

No, there is no rule condition that can query if any previous rule has succeeded.

Regarding your original question, a small change to @capink's suggestion might be easier for you to use. Something like

    if 'Some Movie|Some Other Movie' in f then icons = list_union(icons, 'film.png', sep) fi;
    if 'One Entry of a Game Series' in f then icons = list_union(icons, 'iconforseries.png', sep) fi;
# and on and on
    ifempty(icons, 'unknown.png')

[chaley]

Originally Posted by capink

program:
    f = field('#taglike');
    icons = '';
    sep = ':';
    icon_expression = 'film.png=^Some Movie|Some Other Movie$,iconforseries.png=One Entry of a Game Series';
    for item in icon_expression:
        icon = re(item, '(.+)=(.+)', '\1');
        expression = re(item, '(.+)=(.+)', '\2');
        val = contains(f, expression, icon, '');
        if val then
            icons = list_union(icons, val, sep)
        fi
    rof;
    ifempty(icons, 'unknown.png')

FWIW this is a good place to use list_split(). Without testing it, the for loop could be rewritten as

    for item in icon_expression:
        list_split(item, '=', 'part');
        if part_1 in f then
            icons = list_union(icons, part_0, sep)
        fi
    rof;

[ownedbycats]

Thank you