> On Nov 7, 2021, at 01:22, Lawrence D'Oliveiro <ldo@xxxxxxxxxxxxxxxxxxx> wrote: > > On Sun, 7 Nov 2021 01:41:16 -0500, Michael Brennen wrote: > >> The FC routine called from gs to get the weight is this: >> >> result = FcPatternGetInteger (font, FC_WEIGHT, 0, &weight_fc); >> >> My debug messages, slightly modified from the gs debug messages: >> >> FC_WEIGHT failed to match on Bahnschrift (and Skia) >> FC_WEIGHT failed to match on 32764 >> >> weight_fc is an int where the result is stored; that is what is >> showing 32764 upon return. > > That is probably just a rubbish uninitialized value. The function is > probably returning FcResultNoMatch because there is no such entry in > the pattern. > > Which is odd, because looking further back at the > gp_enumerate_fonts_init() routine in base/gp_unix.c, it is specifically > asking for a set of info that includes the weight, from the fonts > matching a specified pattern. > > Maybe worth trying to dump out the full set of patterns returned, to > see what is in there? I have not done that yet, only set up a debug loop in gp_enumerate_fonts_init.c to print the names of the fonts to see what was included. BTW to do printf() I had to comment this in base/gsio.h: /* #undef printf #define printf Function._printf_.unavailable */ >> I quickly become tangled in FC’s fc_pat.c, which is where most of >> this seems to happen. I am not sure what an ELT is (element?) is; I >> found where it is retrieved by indexing into some data structure, but >> I don’t know what that is. > > Seems properties can be multivalued, so you also pass an “id” (actually > an index) to indicate which value element you want. I normally pass 0. > ;) It looks like the FcPatternGetInteger() does pass a 0, or perhaps I am misreading it. Without really understanding what I was seeing in the FC routines, because I have not studied the FC data structures, it seemed odd that such an anomalous value was returned. >> variable: False(s) > > Is this the same Bahnschrift that I found here > <https://freefontsfamily.com/bahnschrift-font-free-download/>? That > archive has 15 different TTF files in it, and some of them report True > for this property. I don’t know what the variable false or true means in a font. I’ve never had occasion to look into font internals. The file BAHNSCHRIFT.TTF in that archive has the same md5 sum as the bahnschrift.ttf file on the server I am working on. Within some miniscule margin of error, they are the same. :)
