Initial checkin. Argument parsing done.

2 files changed, 88 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c8c9ae1
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,5 @@
+codeword: codeword.c
+	$(CC) -o codeword codeword.c
+
+clean:
+	rm -f codeword
diff --git a/codeword.c b/codeword.c
new file mode 100644
index 0000000..7b215a9
--- /dev/null
+++ b/codeword.c
@@ -0,0 +1,83 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+typedef struct
+{
+    int is_letter;
+    int number;
+    char letter;
+} Character;
+
+static void Chomp(char *p)
+{
+    size_t l = strlen(p);
+
+    while (l && p[l-1] == '\n')
+    {
+    	p[--l] = 0;
+    }
+}
+
+static void Error(const char *p)
+{
+    perror(p);
+    exit(EXIT_FAILURE);
+}
+
+int main(int argc, char *argv[])
+{
+    int no_chars;
+    Character *chars;
+    int f;
+    FILE *fp;
+    char buff[1024];
+
+    if (argc < 3)
+    {
+    	fprintf(stderr, "usage: %s wordlist <letter or number> ...\n", argv[0]);
+	exit(EXIT_FAILURE);
+    }
+
+    no_chars = argc - 2;
+    chars = malloc(sizeof *chars * no_chars);
+
+    if (!chars)
+    {
+    	Error("malloc");
+    }
+
+    for(f = 0; f < no_chars; f++)
+    {
+    	int i;
+
+	i = atoi(argv[f+2]);
+
+	if (i == 0)
+	{
+	    chars[f].is_letter = 1;
+	    chars[f].letter = argv[f+2][0];
+	    chars[f].number = 0;
+	}
+	else
+	{
+	    chars[f].is_letter = 0;
+	    chars[f].number = i;
+	    chars[f].letter = 0;
+	}
+    }
+
+    fp = fopen(argv[1], "r");
+
+    if (!fp)
+    {
+    	Error(argv[1]);
+    }
+
+    while(fgets(buff, sizeof buff, fp))
+    {
+    }
+
+    return EXIT_SUCCESS;
+}