refactor csv parsing

1 files changed, 38 insertions, 0 deletions

diff --git a/src/csv.c b/src/csv.c
new file mode 100644
index 0000000..907065e
--- /dev/null
+++ b/src/csv.c
@@ -0,0 +1,38 @@
+#include "globals.h"
+
+char *csv_read(char **ptr)
+{
+    if(!ptr)
+        return NULL;
+
+    char *start = *ptr;
+    bool quoted = false;
+
+    while(**ptr)
+    {
+        char c = **ptr;
+
+        if(c == '"')
+        {
+            quoted = !quoted;
+        }
+
+        else if((c == ',' && !quoted)  ||
+                c == '\0'              ||
+                c == '\n')
+        {
+            char *ret = malloc(*ptr - start + 1);
+            ret[*ptr - start] = '\0';
+            memcpy(ret, start, *ptr - start);
+            (*ptr)++;
+
+            return ret;
+        }
+
+        (*ptr)++;
+    }
+
+    /* shouldn't get here */
+    assert(false);
+    return NULL;
+}