The function tries to split a key / value from the given argument where
delimiter can be either ' ' (space) or '=' (equal sign).
It will be useful later as well.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
lib.c | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/lib.c b/lib.c
index bf3e91c..4e5a846 100644
--- a/lib.c
+++ b/lib.c
@@ -275,14 +275,8 @@ void add_pre_buffer(const char *fmt, ...)
pre_buffer_end = end;
}
-static char **handle_switch_D(char *arg, char **next)
+static const char *split_value_from_arg(char *arg, const char *def)
{
- const char *name = arg + 1;
- const char *value = "1";
-
- if (!*name || isspace(*name))
- die("argument to `-D' is missing");
-
for (;;) {
char c;
c = *++arg;
@@ -290,10 +284,21 @@ static char **handle_switch_D(char *arg, char **next)
break;
if (isspace((unsigned char)c) || c == '=') {
*arg = '\0';
- value = arg + 1;
- break;
+ return arg + 1;
}
}
+ return def;
+}
+
+static char **handle_switch_D(char *arg, char **next)
+{
+ const char *name = arg + 1;
+ const char *value = "1";
+
+ if (!*name || isspace(*name))
+ die("argument to `-D' is missing");
+
+ value = split_value_from_arg(arg, value);
add_pre_buffer("#define %s %s\n", name, value);
return next;
}
--
2.0.0
--
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