Add the strsplit() function

2 files changed, 35 insertions, 0 deletions

diff --git a/src/string2.c b/src/string2.c
new file mode 100644
index 0000000..2d59897
--- /dev/null
+++ b/src/string2.c
@@ -0,0 +1,33 @@
+/* See LICENSE file for copyright and license details. */
+
+#include <stdlib.h>
+#include <string.h>
+
+char **
+strsplit(char *str, char delim, int *size)
+{
+	char **lines = NULL;
+	char *s = str;
+
+	int count = 0;
+
+	for (int start = 0, end = 0; ; s++, end++) {
+		if (*s == delim || *s == '\0') {
+			int _size = end - start;
+			lines = realloc(lines, sizeof(char *) * ++count);
+			int idx = count - 1;
+			if (_size > 1) {
+				lines[idx] = calloc(_size + 1, sizeof(char *));
+				strncpy(lines[idx], str + start, _size);
+			} else {
+				lines[idx] = strdup("");
+			}
+			start = end + 1; /* plus 1 - skip the delim */
+		}
+		if (*s == '\0') break;
+	}
+
+	*size = count;
+
+	return lines;
+}
diff --git a/src/string2.h b/src/string2.h
index 228cc8e..0ffa2b3 100644
--- a/src/string2.h
+++ b/src/string2.h
@@ -5,6 +5,8 @@
 
 #include <string.h>
 
+char **strsplit(char *str, char delim, int *size);
+
 #define strstarts(str, prefix) (strncmp(str, prefix, strlen(prefix)) == 0)
 
 static int