Handles spaces in array names better.

[thirdparty/mdadm.git] / lib.c

diff --git a/lib.c b/lib.c
index 082cff56a190d8fa1893087bc35b192d8f0bce6d..dc32c561faa9b9b63978981195ee35bc6ef684c3 100644 (file)
--- a/lib.c
+++ b/lib.c
@@ -322,3 +322,71 @@ char *conf_word(FILE *file, int allow_key)
        }
        return word;
 }
+
+void print_quoted(char *str)
+{
+       /* Printf the string with surrounding quotes
+        * iff needed.
+        * If no space, tab, or quote - leave unchanged.
+        * Else print surrounded by " or ', swapping quotes
+        * when we find one that will cause confusion.
+        */
+
+       char first_quote = 0, q;
+       char *c;
+
+       for (c = str; *c; c++) {
+               switch(*c) {
+               case '\'':
+               case '"':
+                       first_quote = *c;
+                       break;
+               case ' ':
+               case '\t':
+                       first_quote = *c;
+                       continue;
+               default:
+                       continue;
+               }
+               break;
+       }
+       if (!first_quote) {
+               printf("%s", str);
+               return;
+       }
+
+       if (first_quote == '"')
+               q = '\'';
+       else
+               q = '"';
+       putchar(q);
+       for (c = str; *c; c++) {
+               if (*c == q) {
+                       putchar(q);
+                       q ^= '"' ^ '\'';
+                       putchar(q);
+               }
+               putchar(*c);
+       }
+       putchar(q);
+}
+
+void print_escape(char *str)
+{
+       /* print str, but change space and tab to '_'
+        * as is suitable for device names
+        */
+       for (; *str ; str++) {
+               switch (*str) {
+               case ' ':
+               case '\t':
+                       putchar('_');
+                       break;
+               case '/':
+                       putchar('-');
+                       break;
+               default:
+                       putchar(*str);
+               }
+       }
+}