Added csv utils

2 files changed, 77 insertions, 0 deletions

diff --git a/utils.c b/utils.c
index 1acd0e52509a..7618fcab13a1 100644
--- a/utils.c
+++ b/utils.c
@@ -112,4 +112,49 @@ int is_str_number(const char* string) {
             return 0;
 
     return 1;
+}
+
+double csv_read_next_double(String* pString, size_t* idx) {
+    char string[32];
+    size_t i, j = 0;
+    for (i = *idx; pString->data[i] != ',' && pString->data[i] != '\n' && i < pString->len; i++,
+            j++)
+        string[j] = pString->data[i];
+
+    string[j] = '\0';
+    *idx = i + 1;
+    return strtod(string, NULL);
+}
+
+int csv_goto_next_line(String* pString, size_t* idx) {
+    size_t i;
+    for (i = *idx; i < pString->len; i++) {
+        if (pString->data[i] == '\n') {
+            *idx = i + 1;
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+int csv_goto_next_value(String* pString, size_t* idx) {
+    size_t i;
+    for (i = *idx; i < pString->len; i++) {
+        if (pString->data[i] == ',') {
+            *idx = i + 1;
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+size_t string_get_num_lines(String* pString) {
+    size_t lines = 0, i = 0;
+    while (i++ < pString->len)
+        if (pString->data[i] == '\n')
+            lines++;
+
+    return lines;
 }
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diff --git a/utils.h b/utils.h
index b30432a844a0..60ad747ba5e4 100644
--- a/utils.h
+++ b/utils.h
@@ -118,4 +118,36 @@ int is_string_json_array(const String* pString);
  */
 int is_str_number(const char* string);
 
+/**
+ * Starting at pString->data[*idx], returns the next double and advances idx to after the next
+ * comma or newline
+ * @param pString String*
+ * @param idx index
+ * @return value as double
+ */
+double csv_read_next_double(String* pString, size_t* idx);
+
+/**
+ * Advances idx past the next newline in pString
+ * @param pString String*
+ * @param idx index
+ * @return 1 if success, 0 if encountered end of string
+ */
+int csv_goto_next_line(String* pString, size_t* idx);
+
+/**
+ * Advances idx to the start of the next value
+ * @param pString String*
+ * @param idx index
+ * @return 1 if success, 0 if encountered end of string
+ */
+int csv_goto_next_value(String* pString, size_t* idx);
+
+/**
+ * Returns the number of lines in a String
+ * @param pString String*
+ * @return size_t number of lines
+ */
+size_t string_get_num_lines(String* pString);
+
 #endif
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