scanner.l: modernize code a bit

diff --git a/src/liboconfig/scanner.l b/src/liboconfig/scanner.l
index be6d678..cfd9a5c 100644 (file)
--- a/src/liboconfig/scanner.l
+++ b/src/liboconfig/scanner.l
@@ -40,9 +40,9 @@
 
 
 /* multiline string buffer */
-static char *ml_buffer = NULL;
-static size_t ml_pos    = 0;
-static size_t ml_len    = 0;
+static char *ml_buffer;
+static size_t ml_pos;
+static size_t ml_len;
 
 #define ml_free (ml_len - ml_pos)
 
@@ -115,7 +115,7 @@ IPV6_ADDR ({IPV6_BASE})|(\[{IPV6_BASE}\](:{PORT})?)
        ml_pos = 0;
 
        /* remove "\\<EOL>" */
-       if ('\r' == yytext[len - 2])
+       if (yytext[len - 2] == '\r')
                len -= 3;
        else
                len -= 2;
@@ -129,7 +129,7 @@ IPV6_ADDR ({IPV6_BASE})|(\[{IPV6_BASE}\](:{PORT})?)
        size_t len = strlen (yytext);
 
        /* remove "\\<EOL>" */
-       if ('\r' == yytext[len - 2])
+       if (yytext[len - 2] == '\r')
                len -= 3;
        else
                len -= 2;
@@ -148,17 +148,16 @@ IPV6_ADDR ({IPV6_BASE})|(\[{IPV6_BASE}\](:{PORT})?)
 static void ml_append (char *string)
 {
        size_t len = strlen (string);
-       int s;
 
        if (ml_free <= len) {
                ml_len += len - ml_free + 1;
                ml_buffer = realloc (ml_buffer, ml_len);
-               if (NULL == ml_buffer)
+               if (ml_buffer == NULL)
                        YY_FATAL_ERROR ("out of dynamic memory in ml_append");
        }
 
-       s = snprintf (ml_buffer + ml_pos, ml_free, "%s", string);
-       if ((0 > s) || (ml_free <= s))
+       int s = snprintf(ml_buffer + ml_pos, ml_free, "%s", string);
+       if (s < 0 || (size_t)s >= ml_free)
                YY_FATAL_ERROR ("failed to write to multiline buffer");
 
        ml_pos += s;