Add data for overriding 'aalt' sometimes

Not used yet.

diff --git a/bedstead.c b/bedstead.c
index 4f8bbe53e6db98213d4d49303eddb85cbd0758c6..f351431de8bf048461754bb583203590d10ccd1a 100644 (file)
--- a/bedstead.c
+++ b/bedstead.c
@@ -2693,6 +2693,22 @@ static int const nglyphs = NGLYPHS;
 
 static struct glyph const *glyphs_by_name[NGLYPHS];
 
+#define MAX_ALT_SUB_OVERRIDE 3
+static struct alt_sub_override {
+       char const *base;
+       char const *alt[MAX_ALT_SUB_OVERRIDE];
+} const aalt_overrides[] = {
+       { "D", { "D.c2sc", "D.serif", "D.narrow" } },
+       { "J", { "J.c2sc", "J.narrow", "J.narrow" } },
+       { "L", { "L.c2sc", "L.narrow", "L.narrow" } },
+       { "ccedilla", { "ccedilla.angular", "ccedilla.sc" } }, // maybe not?
+       { "colon", { "colon.leftsmall", "colon.leftsmall" } },
+       { "ocircumflex", { "ocircumflex.large", "ocircumflex.sc" } }, // maybe not?
+       { "question", { "question.open", "question.open" } },
+       { "semicolon", { "semicolon.left", "semicolon.left" } },
+       { "ugrave", { "ugrave.roundjoined", "ugrave.sc" } }, // maybe not?
+};
+
 #define MAXSUBS 10
 static struct gsub_feature {
        char const *tag;
@@ -2703,8 +2719,11 @@ static struct gsub_feature {
        char const *suffix; /* NULL for all alternative glyphs. */
        char const *subs[MAXSUBS]; /* Individual character substitutions. */
        char const *name;
+       struct alt_sub_override const *overrides;
+       int noverrides;
 } const gsub_features[] = {
-       { "aalt", SCRIPT_ALL },
+       { "aalt", SCRIPT_ALL, .overrides = aalt_overrides,
+         .noverrides = sizeof(aalt_overrides) / sizeof(aalt_overrides[0]) },
        { "smcp", SCRIPT_LATN, .suffix = ".sc" },
        { "c2sc", SCRIPT_LATN, .suffix = ".c2sc" },
        { "rtlm", SCRIPT_ALL, .suffix = ".rtlm" },