slight refactor and start documenting

1 files changed, 79 insertions, 0 deletions

diff --git a/lib/string.c b/lib/string.c
new file mode 100644
index 0000000..13e414e
--- /dev/null
+++ b/lib/string.c
@@ -0,0 +1,79 @@
+#include "lslib.h"
+
+#include <ctype.h>
+#include <stddef.h>
+#include <time.h>
+
+static char fs_types[5] = {'K','M','G','T','P'};
+void print_file_size(size_t bytes, char buf[5]) {
+    int index, n;
+    float next;
+
+    index = 0;
+    next = bytes;
+    
+    while (true) {
+        if (next < 1000) {
+            break;
+        }
+        
+        if (index == 5) {
+            printf("999P");
+            return;
+        }
+        
+        next /= 1024;
+        index++;
+    }
+    
+    n = snprintf(buf, 4, "%u", (int)(next+.5));
+    
+    if (index > 0) {
+        buf[n] = (fs_types[index - 1]);
+        n++;
+    }
+    
+    buf[n] = '\0';
+}
+
+static char* months[12] = 
+    {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+void print_date_time(time_t mills, char buf[13]) {
+    struct tm* info;
+    int n;
+
+    info = localtime(&mills);
+    n = snprintf(buf, 5, "%s ", months[info->tm_mon]);
+
+    if (info->tm_mday < 10) {
+        buf[n] = ' ';
+        n++;
+    }
+
+    snprintf(buf + n, 13 - n, "%d %02d:%02d ", info->tm_mday, info->tm_hour, info->tm_sec);
+}
+
+void print_file_path(char* path) {
+    if (streql("-", path)) {
+        printf("(standard input)");
+    } else {
+        printf("%s", path);
+    }
+}
+
+void nuke_str(char* type) {
+    *type = 0;
+    while(*(++type)) {
+        *type = 0;
+    }
+}
+
+bool printable_char(char c) {
+    switch (c) {
+        case '\n': return true;
+        case '\r': return true;
+        case '\b': return true;
+        case '\t': return true;
+        default: return isprint(c) == 0;
+    }
+}