eeshow/: support component aliases

eeshow/delta.c

@@ -36,7 +36,7 @@
 /* ----- Components -------------------------------------------------------- */
 
 
-static bool comp_lib_objs(const struct lib_obj *a, const struct lib_obj *b)
+static bool comp_eq_objs(const struct lib_obj *a, const struct lib_obj *b)
 {
 	/*
 	 * @@@ over-simplify a little. We don't search to find objects that
@@ -97,6 +97,19 @@ static bool comp_lib_objs(const struct lib_obj *a, const struct lib_obj *b)
 }
 
 
+static bool comp_eq_aliases(const struct comp_alias *a,
+    const struct comp_alias *b)
+{
+	while (a && b) {
+		if (strcmp(a->name, b->name))
+			return 0;
+		a = a->next;
+		b = b->next;
+	}
+	return a == b;
+}
+
+
 static bool comp_eq(const struct comp *a, const struct comp *b)
 {
 	if (a == b)
@@ -113,7 +126,9 @@ static bool comp_eq(const struct comp *a, const struct comp *b)
 		return 0;
 	if (a->name_offset != b->name_offset)
 		return 0;
-	return comp_lib_objs(a->objs, b->objs);
+	if (!comp_eq_aliases(a->aliases, b->aliases))
+		return 0;
+	return comp_eq_objs(a->objs, b->objs);
 }
 
 

eeshow/lib-parse.c

@@ -78,6 +78,7 @@ static bool parse_def(struct lib *lib, const char *line)
 		s = tmp;
 	}
 	lib->curr_comp->name = s;
+	lib->curr_comp->aliases = NULL;
 	lib->curr_comp->units = units;
 
 	lib->curr_comp->visible = 0;
@@ -133,6 +134,20 @@ static bool parse_arc(struct lib_obj *obj, const char *line)
 }
 
 
+/* ----- Aliases ----------------------------------------------------------- */
+
+
+static void add_alias(struct comp *comp, const char *alias)
+{
+	struct comp_alias *new;
+
+	new = alloc_type(struct comp_alias);
+	new->name = alias;
+	new->next = comp->aliases;
+	comp->aliases = new;
+}
+
+
 /* ----- Library parser ---------------------------------------------------- */
 
 
@@ -143,7 +158,7 @@ static bool lib_parse_line(const struct file *file,
 	int n = 0;
 	unsigned points;
 	struct lib_obj *obj;
-	char *style;
+	char *s, *style;
 	unsigned zero1, zero2;
 	char vis;
 
@@ -166,6 +181,10 @@ static bool lib_parse_line(const struct file *file,
 				lib->curr_comp->visible |= 1 << n;
 			return 1;
 		}
+		if (sscanf(line, "ALIAS %ms", &s) == 1) {
+			add_alias(lib->curr_comp, s);
+			return 1;
+		}
 		/* @@@ explicitly ignore FPLIST */
 		return 1;
 	case lib_draw:
@@ -309,14 +328,27 @@ static void free_objs(struct lib_obj *objs)
 }
 
 
+static void free_comp(struct comp *comp)
+{
+	struct comp_alias *next;
+
+	free((char *) comp->name);
+	while (comp->aliases) {
+		next = comp->aliases->next;
+		free((char *) comp->aliases->name);
+		comp->aliases = next;
+	}
+	free_objs(comp->objs);
+	free(comp);
+}
+
+
 void lib_free(struct lib *lib)
 {
 	struct comp *comp, *next;
 
 	for (comp = lib->comps; comp; comp = next) {
 		next = comp->next;
-		free((char *) comp->name);
-		free_objs(comp->objs);
-		free(comp);
+		free_comp(comp);
 	}
 }

eeshow/lib-render.c

@@ -367,10 +367,15 @@ static void draw(const struct comp *comp, const struct lib_obj *obj,
 const struct comp *lib_find(const struct lib *lib, const char *name)
 {
 	const struct comp *comp;
+	const struct comp_alias *alias;
 
-	for (comp = lib->comps; comp; comp = comp->next)
+	for (comp = lib->comps; comp; comp = comp->next) {
 		if (!strcmp(comp->name, name))
 			return comp;
+		for (alias = comp->aliases; alias; alias = alias->next)
+			if (!strcmp(alias->name, name))
+				return comp;
+	}
 	fprintf(stderr, "\"%s\" not found\n", name);
 	exit(1);
 }

eeshow/lib.h

@@ -87,8 +87,14 @@ struct lib_obj {
 	struct lib_obj *next;
 };
 
+struct comp_alias {
+	const char *name;
+	struct comp_alias *next;
+};
+
 struct comp {
 	const char *name;
+	struct comp_alias *aliases;
 	unsigned units;
 
 	unsigned visible;	/* visible fields, bit mask */