make wide scanf %[ respect width
authorRich Felker <dalias@aerifal.cx>
Wed, 18 Apr 2012 01:17:09 +0000 (21:17 -0400)
committerRich Felker <dalias@aerifal.cx>
Wed, 18 Apr 2012 01:17:09 +0000 (21:17 -0400)
src/stdio/vfwscanf.c

index 92b7fa4..beb8e8f 100644 (file)
@@ -243,7 +243,7 @@ int vfwscanf(FILE *f, const wchar_t *fmt, va_list ap)
 
                        int gotmatch = 0;
 
 
                        int gotmatch = 0;
 
-                       for (;;) {
+                       while (width) {
                                if ((c=getwc(f))<0) break;
                                if (in_set(p, c) == invert)
                                        break;
                                if ((c=getwc(f))<0) break;
                                if (in_set(p, c) == invert)
                                        break;
@@ -255,9 +255,10 @@ int vfwscanf(FILE *f, const wchar_t *fmt, va_list ap)
                                        if (s) s+=l;
                                }
                                pos++;
                                        if (s) s+=l;
                                }
                                pos++;
+                               width--;
                                gotmatch=1;
                        }
                                gotmatch=1;
                        }
-                       ungetwc(c, f);
+                       if (width) ungetwc(c, f);
 
                        if (!gotmatch) goto match_fail;
 
 
                        if (!gotmatch) goto match_fail;