From 2083889d4e40dd34073f6f9355ec081bce3914a5 Mon Sep 17 00:00:00 2001
From: Vlasta Vesely <vlastavesely@protonmail.ch>
Date: Wed, 25 Apr 2018 16:13:34 +0200
Subject: [PATCH] add transliteration.c with a dummy transliteration loop

---
 Makefile          |  2 +-
 transliteration.c | 30 ++++++++++++++++++++++++++++++
 transliteration.h |  6 ++++++
 utf8.c            |  2 +-
 utf8.h            |  2 +-
 5 files changed, 39 insertions(+), 3 deletions(-)
 create mode 100644 transliteration.c
 create mode 100644 transliteration.h

diff --git a/Makefile b/Makefile
index 3a65fce..9796375 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 .PHONY: all clean
 
 all:
-	$(CC) main.c syllable.c utf8.c -o main
+	$(CC) main.c syllable.c utf8.c transliteration.c -o main
 	./main
 
 clean:
diff --git a/transliteration.c b/transliteration.c
new file mode 100644
index 0000000..b838747
--- /dev/null
+++ b/transliteration.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "transliteration.h"
+#include "syllable.h"
+#include "utf8.h"
+
+char *transliterate_devanagari_to_latin(const char *text)
+{
+	unsigned int length = strlen(text);
+	const char *ptr = text;
+	const char *end = ptr + length;
+	char *tmp;
+	unsigned long c;
+	struct syllable *head, *tail;
+
+	head = syllable_alloc("");
+	tail = head;
+
+	while (ptr < end) {
+		c = utf8_unpack_char(ptr);
+		ptr += utf8_char_length(c);
+
+		tmp = utf8_code_to_string(c);
+		tail = syllable_append(tail, tmp);
+		free(tmp);
+	}
+
+	return syllable_chain_to_string(head);
+}
diff --git a/transliteration.h b/transliteration.h
new file mode 100644
index 0000000..d1da50e
--- /dev/null
+++ b/transliteration.h
@@ -0,0 +1,6 @@
+#ifndef __TRANSLITERATION_H
+#define __TRANSLITERATION_H
+
+char *transliterate_devanagari_to_latin(const char *text);
+
+#endif /* __TRANSLITERATION_H */
diff --git a/utf8.c b/utf8.c
index 20ca835..1ae6faa 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1,7 +1,7 @@
 #include <stdlib.h>
 #include "utf8.h"
 
-unsigned long utf8_unpack_char(char *src)
+unsigned long utf8_unpack_char(const char *src)
 {
 	unsigned long c = 0;
 
diff --git a/utf8.h b/utf8.h
index 772384d..7d0694e 100644
--- a/utf8.h
+++ b/utf8.h
@@ -1,7 +1,7 @@
 #ifndef __UTF8_H
 #define __UTF8_H
 
-unsigned long utf8_unpack_char(char *src);
+unsigned long utf8_unpack_char(const char *src);
 void utf8_pack_char(char *dest, unsigned long c);
 
 unsigned int utf8_char_length(unsigned long c);