Added `sanitize_strlen()`, and `sanitize_str()`.

`sanitize_str()` creates a string with each starting
space replaced by a hyphen, and with all trailing
spaces, and periods removed.

`sanitize_strlen()` gets the length of the sanatized
version of the supplied string.

1 files changed, 28 insertions, 0 deletions

diff --git a/misc.c b/misc.c
index 9cc72c9..3e0b304 100644
--- a/misc.c
+++ b/misc.c
@@ -97,3 +97,31 @@ int delm_span(char *str, const char delm) {
 	for (i = 0; str[i] == delm; i++);
 	return i;
 }
+
+int sanitize_strlen(char *str) {
+	int len = 0;
+	while (*str != '\0') {
+		const int tok_len = strcspn(str, " .");
+		const char delm = str[tok_len];
+		const int span_len = (delm != '\0') ? delm_span(&str[tok_len+1], delm) : 0;
+		str += (tok_len + span_len);
+		len += tok_len;
+	}
+	return len;
+}
+
+char *sanitize_str(char *str) {
+	const int len = sanitize_strlen(str);
+	char *san_str = calloc(len+1, sizeof(char));
+	char *tmp = san_str;
+	while (*str != '\0' && tmp < &san_str[len]) {
+		const int tok_len = strcspn(str, " .");
+		const char delm = str[tok_len];
+		const int span_len = (delm != '\0') ? delm_span(&str[tok_len+1], delm) : 0;
+		memcpy(tmp, str, tok_len);
+		tmp += tok_len;
+		str += (tok_len + span_len);
+		*tmp = (delm == ' ') ? '-' : delm;
+	}
+	return san_str;
+}