1 files changed, 91 insertions, 0 deletions
diff --git a/src/strutil.c b/src/strutil.c
new file mode 100644
index 0000000..ae96239
--- /dev/null
+++ b/src/strutil.c
@@ -0,0 +1,91 @@
+#include "strutil.h"
+
+bool str_startswith(const char *str, const char *pre)
+{
+	size_t lenpre = strlen(pre),
+	       lenstr = strlen(str);
+	return lenstr < lenpre ? false : strncmp(pre, str, lenpre) == 0;
+}
+
+bool str_endswith(const char *str, const char *suf)
+{
+	size_t lensuf = strlen(suf),
+	       lenstr = strlen(str);
+	return lenstr < lensuf ? false : strncmp(str + lenstr - lensuf, suf, lensuf) == 0;
+}
+
+void next_line(FILE *fid, char *filename)
+{
+	char buffer[MAX_LINE_LENGTH];
+	get_line(fid, filename, buffer);
+}
+
+void get_line(FILE *fid, char *filename, char *buffer)
+{
+	if (fgets(buffer, MAX_LINE_LENGTH, fid) == NULL) {
+		fprintf(stderr, "Error reading file %s\n", filename);
+		exit(1);
+	}
+}
+
+double get_fmt_double(FILE *fid, char *filename, const char *fmt)
+{
+	char buffer[MAX_LINE_LENGTH];
+	double value;
+
+	get_line(fid, filename, buffer);
+	sscanf(buffer, fmt, &value);
+	return value;
+}
+
+long get_fmt_long(FILE *fid, char *filename, const char *fmt)
+{
+	char buffer[MAX_LINE_LENGTH];
+	long value;
+
+	get_line(fid, filename, buffer);
+	sscanf(buffer, fmt, &value);
+	return value;
+}
+
+long all_doubles_str(char *buffer, long offset, double *all_doubles)
+{
+	double value;
+	long i = 0;
+	char *start, *end;
+
+	start = buffer + offset;
+	while (true) {
+		value = strtod(start, &end);
+		if (start != end) {
+			all_doubles[i] = value;
+			i++;
+		} else 
+			break;
+		start = end;
+		end = NULL;
+	}
+
+	return i;
+}
+
+long all_longs_str(char *buffer, long offset, long *all_longs)
+{
+	long value;
+	long i = 0;
+	char *start, *end;
+
+	start = buffer + offset;
+	while (true) {
+		value = strtol(start, &end, 10);
+		if (start != end) {
+			all_longs[i] = value;
+			i++;
+		} else
+			break;
+		start = end;
+		end = NULL;
+	}
+
+	return i;
+}