Add parse lib

Makefile

@@ -10,3 +10,7 @@ all: debug
 debug:
 	mkdir -p build/debug
 	$(CC) -o $(BUILD_DIR)/debug/$(BUILD_NAME)-$(OS) $(CFLAGS) src/*
+
+testgemparse:
+	mkdir -p $(BUILD_DIR)/test
+	$(CC) -o $(BUILD_DIR)/test/gemparse-$(OS) -D TESTGEMPARSE src/gemparse.c

src/gemparse.c

@@ -0,0 +1,156 @@
+#include <stdio.h>
+#include <string.h>
+
+#ifdef TESTGEMPARSE
+
+// specific test functions
+
+void addH1 (const char *line);
+void addH2 (const char *line);
+void addH3 (const char *line);
+void addLink (const char *url, const char *text);
+
+// general functions
+
+int parseFile (char *path);
+
+#endif
+
+int
+parseFile (char *path)
+{
+	FILE *fileToParse = fopen (path, "r");
+	char line[4096];
+
+	if (fileToParse == NULL)
+		return 1;
+
+	while (fgets (line, 4096, fileToParse) != NULL)
+	{
+		int size = strlen (line);
+
+		if (size > 3 && line[0] == '#' && line[1] == '#' && line[2] == '#')
+		{
+			int i = 3;
+
+			//Remove whitespace before the text
+			while (i < size && line[i] == ' ')
+				i++;
+
+			//Remove tailing '\n'
+			line[size - 1] = '\0';
+
+			addH3 (line + i);
+		}
+		else if (size > 2 && line[0] == '#' && line [1] == '#')
+		{
+			int i = 2;
+
+			//Remove whitespace before the text
+			while (i < size && line[i] == ' ')
+				i++;
+
+			//Remove tailing '\n'
+			line[size - 1] = '\0';
+
+			addH2 (line + i);
+		}
+		else if (size > 1 && line[0] == '#')
+		{
+			int i = 1;
+
+			//Remove whitespace before the text
+			while (i < size && line[i] == ' ')
+				i++;
+
+			//Remove tailing '\n'
+			line[size - 1] = '\0';
+
+			addH1 (line + i);
+		}
+		else if (size > 2 && line[0] == '=' && line[1] == '>')
+		{
+			int beginUrl = 2;
+			int urlLen = 0;
+			int beginText;
+
+			//Remove whitespace before the url
+			while (beginUrl < size && line[beginUrl] == ' ')
+				beginUrl++;
+
+			//Get URL lenght
+			while (beginUrl + urlLen < size && line[beginUrl + urlLen] != ' ')
+				urlLen++;
+
+			//mark end of url
+
+			line[beginUrl + urlLen] = '\0';
+
+			// text begin after the whitespace after url
+			beginText = urlLen + beginUrl + 1;
+
+			//Remove whitespace between URL and text
+			while (beginText < size && line[beginText] == ' ')
+				beginText++;
+
+			//If not text, text = url
+			if (beginText == size)
+				addLink (line + beginUrl, line + beginUrl);
+			else
+			{
+				//Remove tailing '\n'
+				line[size - 1] = '\0';
+
+				addLink (line + beginUrl, line + beginText);
+			}
+		}
+		else
+			printf ("%s", line);
+	}
+
+	fclose (fileToParse);
+
+	return 0;
+}
+
+#ifdef TESTGEMPARSE
+
+int
+main (int    argc,
+      char **argv)
+{
+	if (argc >= 2)
+		return parseFile (argv[1]);
+	else
+	{
+		fprintf (stderr, "USAGE: %s FILE\n", argv[0]);
+		return 1;
+	}
+}
+
+void
+addH1 (const char *text)
+{
+	printf ("h1 {\n%s\n}\n", text);
+}
+
+void
+addH2 (const char *text)
+{
+	printf ("h2 {\n%s\n}\n", text);
+}
+
+void
+addH3 (const char *text)
+{
+	printf ("h3 {\n%s\n}\n", text);
+}
+
+void
+addLink (const char *url,
+         const char *text)
+{
+	printf ("link {\n%s\n%s\n}\n", url, text);
+}
+
+#endif