add test program

Makefile

@@ -1,8 +1,12 @@
-.PHONY: all clean
+.PHONY: all test clean
 
 all:
 	$(CC) main.c syllable.c utf8.c transliteration.c iast.c -o main
 	./main
 
+test:
+	$(CC) test.c syllable.c utf8.c transliteration.c iast.c -o test
+	./test
+
 clean:
 	$(RM) -f main

test.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "syllable.h"
+#include "utf8.h"
+#include "transliteration.h"
+#include "iast.h"
+
+struct string_pair {
+	const char *devanagari;
+	const char *latin;
+};
+
+static const struct string_pair table_iast[] = {
+	{"संस्कृतम्", "saṃskṛtam"},
+	{"आर्यावर्त", "āryāvarta"},
+	{"तन्त्रशास्त्रम्", "tantraśāstram"},
+	{"ऋग्वेद", "ṛgveda"},
+	{"महाभारतम्", "mahābhāratam"},
+	{"सरस्वती नदी", "sarasvatī nadī"},
+	{"देवनागरी", "devanāgarī"},
+	{"योगः", "yogaḥ"},
+	{"भगवद्गीता", "bhagavadgītā"},
+	{NULL, NULL}
+};
+
+int main(int argc, const char **argv)
+{
+	struct transliteration_context *context;
+	const struct string_pair *walk = table_iast;
+	char *ptr;
+	int retval = 0;
+	int match;
+
+	context = transliteration_context_iast_alloc();
+	while (walk->devanagari != NULL) {
+		ptr = transliterate_devanagari_to_latin(walk->devanagari, context);
+
+		match = strcmp(ptr, walk->latin) == 0;
+		printf("\033[%dm", match ? 32 : 31);
+		printf("%s = %s", ptr, walk->latin);
+		printf("\033[0m\n");
+
+		if (!match)
+			retval++;
+
+		free(ptr);
+		walk++;
+	}
+
+	return retval;
+}