From 91f08b5a24283827c15baec98e55d15d31c5a678 Mon Sep 17 00:00:00 2001
From: Tomasz Malesinski <tomal@rockbox.org>
Date: Fri, 3 Feb 2006 23:39:12 +0000
Subject: Made %n not eat white space.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8557 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/common/sscanf.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

(limited to 'firmware/common')

diff --git a/firmware/common/sscanf.c b/firmware/common/sscanf.c
index a63a384456..c710a10349 100644
--- a/firmware/common/sscanf.c
+++ b/firmware/common/sscanf.c
@@ -82,6 +82,18 @@ static int parse_hex(int (*peek)(void *userp),
     return n;
 }
 
+static int skip_spaces(int (*peek)(void *userp),
+                       void (*pop)(void *userp),
+                       void *userp)
+{
+    int n = 0;
+    while (isspace((*peek)(userp))) {
+        n++;
+        (*pop)(userp);
+    }
+    return n;
+}
+
 static int scan(int (*peek)(void *userp),
                 void (*pop)(void *userp),
                 void *userp,
@@ -103,14 +115,10 @@ static int scan(int (*peek)(void *userp),
         {
             ch = *fmt++;
 
-            while (isspace((*peek)(userp))) {
-                n_chars++;
-                (*pop)(userp);
-            }
-
             switch (ch)
             {
                 case 'x':
+                    n_chars += skip_spaces(peek, pop, userp);
                     if ((r = parse_hex(peek, pop, userp, &ulval)) >= 0)
                     {
                         *(va_arg(ap, unsigned int *)) = ulval;
@@ -121,6 +129,7 @@ static int scan(int (*peek)(void *userp),
                         return n;
                     break;
                 case 'd':
+                    n_chars += skip_spaces(peek, pop, userp);
                     if ((r = parse_dec(peek, pop, userp, &lval)) >= 0)
                     {
                         *(va_arg(ap, int *)) = lval;
@@ -135,6 +144,7 @@ static int scan(int (*peek)(void *userp),
                     n++;
                     break;
                 case 'l':
+                    n_chars += skip_spaces(peek, pop, userp);
                     ch = *fmt++;
                     switch (ch)
                     {
@@ -176,10 +186,7 @@ static int scan(int (*peek)(void *userp),
 
         if (literal)
         {
-            while (isspace((*peek)(userp))) {
-                (*pop)(userp);
-                n_chars++;
-            }
+            n_chars += skip_spaces(peek, pop, userp);
             if ((*peek)(userp) != ch)
                 return n;
             else
-- 
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