add focused unit and map checks

tests/vi_test.c

@@ -0,0 +1,84 @@
+#include "test.h"
+
+static void
+typevi(struct ct *t, char *keys, char *want)
+{
+	Emit e;
+	Im state;
+	Str out, shown;
+	char *p;
+
+	memset(&state, 0, sizeof state);
+	state.l = &testvi;
+	sclear(&out);
+	for(p = keys; *p != '\0'; p++){
+		e = transvi(&state, (uchar)*p);
+		sappend(&out, &e.s);
+		state.pre = e.next;
+		if(!e.eat)
+			sputr(&out, (uchar)*p);
+	}
+	shown = shownpre(&state);
+	sappend(&out, &shown);
+	checkstr(t, keys, want, &out);
+}
+
+void
+vietnamese_transitions(struct ct *t)
+{
+	static const struct { char *keys, *want; } cases[] = {
+		{ "as", "á" },
+		{ "As", "Á" },
+		{ "ans", "án" },
+		{ "Ans", "Án" },
+		{ "aws", "ắ" },
+		{ "asw", "ắ" },
+		{ "aww", "aw" },
+		{ "ddd", "dd" },
+		{ "ddas", "đá" },
+		{ "dds", "đs" },
+		{ "quas", "quá" },
+		{ "quaf", "quà" },
+		{ "quar", "quả" },
+		{ "quax", "quã" },
+		{ "quaj", "quạ" },
+		{ "Quas", "Quá" },
+		{ "gias", "giá" },
+		{ "Gias", "Giá" },
+		{ "gif", "gì" },
+		{ "\\s", "s" },
+		{ "a\\s", "as" },
+	};
+	int i;
+
+	for(i = 0; i < nelem(cases); i++)
+		typevi(t, cases[i].keys, cases[i].want);
+}
+
+void
+vietnamese_backspace(struct ct *t)
+{
+	static const struct {
+		char *pre, *raw, *rawafter, *after;
+	} cases[] = {
+		{ "as",  "as",    "a",    "a" },
+		{ "quá", "quas",  "qua",  "qua" },
+		{ "à",   "asf",   "as",   "á" },
+		{ "a",   "asz",   "as",   "á" },
+		{ "quà", "quasf", "quas", "quá" },
+	};
+	Im state;
+	Str shown;
+	int i;
+
+	for(i = 0; i < nelem(cases); i++){
+		memset(&state, 0, sizeof state);
+		state.l = &testvi;
+		state.pre = mkstr(cases[i].pre);
+		state.raw = mkstr(cases[i].raw);
+		backvi(&state);
+		checkstr(t, cases[i].raw, cases[i].rawafter, &state.raw);
+		shown = shownpre(&state);
+		checkstr(t, cases[i].raw, cases[i].after, &shown);
+	}
+}