iast: define simple transformations

iast.c

@@ -6,6 +6,58 @@ static const struct transliteration_letter table_letters[] = {
 	/* Vowels */
 	{0x0905, "a"},		/* अ */
 	{0x0906, "ā"},		/* आ */
+	{0x0907, "i"},		/* इ */
+	{0x0908, "ī"},		/* ई */
+	{0x0909, "u"},		/* उ */
+	{0x090a, "ū"},		/* ऊ */
+	{0x090b, "ṛ"},		/* ऋ */
+	{0x0960, "ṝ"},		/* ॠ */
+	{0x090c, "ḷ"},		/* ऌ */
+	{0x0961, "ḹ"},		/* ॡ */
+	{0x090f, "e"},		/* ए */
+	{0x0910, "ai"},		/* ऐ */
+	{0x0913, "o"},		/* ओ */
+	{0x0914, "au"},		/* औ */
+
+	/* Consonants */
+	{0x0915, "ka"},		/* क */
+	{0x0916, "kha"},	/* ख */
+	{0x0917, "ga"},		/* ग */
+	{0x0918, "gha"},	/* घ */
+	{0x0919, "ṅa"},		/* ङ */
+	{0x0939, "ha"},		/* ह */
+	{0x091a, "ca"},		/* च */
+	{0x091b, "cha"},	/* छ */
+	{0x091c, "ja"},		/* ज */
+	{0x091d, "jha"},	/* झ */
+	{0x091e, "ña"},		/* ञ */
+	{0x092f, "ya"},		/* य */
+	{0x0936, "śa"},		/* श */
+	{0x091F, "ṭa"},		/* ट */
+	{0x0920, "ṭha"},	/* ठ */
+	{0x0921, "ḍa"},		/* ड */
+	{0x0922, "ḍha"},	/* ढ */
+	{0x0923, "ṇa"},		/* ण */
+	{0x0930, "ra"},		/* र */
+	{0x0937, "ṣa"},		/* श */
+	{0x0924, "ta"},		/* त */
+	{0x0925, "tha"},	/* थ */
+	{0x0926, "da"},		/* द */
+	{0x0927, "dha"},	/* ध */
+	{0x0928, "na"},		/* न */
+	{0x0932, "la"},		/* ल */
+	{0x0938, "sa"},		/* स */
+	{0x092a, "pa"},		/* प */
+	{0x092b, "pha"},	/* फ */
+	{0x092c, "ba"},		/* ब */
+	{0x092d, "bha"},	/* भ */
+	{0x092e, "ma"},		/* म */
+	{0x0935, "va"},		/* व */
+
+	/* Codas */
+	{0x0902, "ṃ"},		/* ं (anusvara) */
+	{0x0903, "ḥ"},		/* ः (visarga)  */
+	{0x093d, "'"},		/* ऽ (avagrada) */
 
 	{0, NULL}
 };