Re: Pulling parts from a filename.

[Oleksandr Gavenko]

On 2010.06.09 5:24, Todd Showalter wrote:
>      I've got a (perhaps somewhat interesting) problem that I can't see
> a particularly easy solution to.  I'm taking an opentype font and
> baking several raster fonts from it using a tool.  If my target is
> (say) foo14.fnt, I want to call:
>
> fontgen -p 14 foo.otf foo14.fnt
>
>      The target filename indicates the point size at which the font
> needs to be generated, and I'd rather automate it.  The important
> thing here is that there may be several fonts; I don't want to have to
> hardcode the font names if I don't have to.
>
>      I can't see any obvious way to do this in make:
>
> %.fnt: ???
>      fontgen -p ??? ??? $@
>
>      I *think* if I require the targets to be of the form foo_14.fnt I
> can use $(patsubst) to isolate the parts.
>
> %,fnt: ???
>      fontgen -p $(patsubst %_,,$@) $(patsubst _%,.otf,$@) $@
>
>      But I'm at a when it comes to the dependency.  I'm not sure how to
> tell make that x_y.fnt depends on x.otf for arbitrary x and y.
>
>      Am I missing something?

Try


FOO_FNT = foo_14.fnt foo_13.fnt foo_10.fnt
BAR_FNT = bar_12.fnt bar_9.fnt

FNT = $(FOO_FNT) $(BAR_FNT)

all:  $(FNT)

$(FOO_FNT): foo_%.fnt: foo.otf
        fontgen -f $* $< $@

$(BAR_FNT): bar_%.fnt: bar.otf
        fontgen -f $* $< $@


Look how it work:

  $ make -n bar_12.fnt
fontgen -f 12 bar.otf bar_12.fnt

  $ make -n foo_14.fnt
fontgen -f 14 foo.otf foo_14.fnt

--
С уважением, Александр Гавенко.