ref: 78aec6d5c67cab79e03cdbe4f1a1bd7a7aa15612
parent: ed4645979c0a6286d92c6bddaee7ea71727b0afb
author: Ori Bernstein <ori@eigenstate.org>
date: Fri May 15 12:46:20 EDT 2020
Fix scans of more than one character in %[] This got broken in d8e877a89dae, where we returned 0 on the first mismatch; we want to return 0 only when we consumed no characters.
--- a/sys/src/ape/lib/ap/stdio/vfscanf.c
+++ b/sys/src/ape/lib/ap/stdio/vfscanf.c
@@ -416,7 +416,7 @@
}
if(!match(c, pat)){
nungetc(c, f);
- return 0;
+ goto Done;
}
if(store)
*s++=c;
@@ -424,5 +424,5 @@
}
Done:
if(store) *s='\0';
- return 1;
+ return nn > 0;
}
--- a/sys/src/libstdio/vfscanf.c
+++ b/sys/src/libstdio/vfscanf.c
@@ -339,6 +339,7 @@
int c, nn;
register char *s;
register const char *pat;
+
pat=++fmtp;
if(*fmtp=='^') fmtp++;
if(*fmtp!='\0') fmtp++;
@@ -354,7 +355,7 @@
}
if(!match(c, pat)){
nungetc(c, f);
- return 0;
+ goto Done;
}
if(store) *s++=c;
nn++;
@@ -361,5 +362,5 @@
}
Done:
if(store) *s='\0';
- return 1;
+ return nn > 0;
}