regcomp.c: Use mnemonic not numeric constant

Future commits will add other uses of this number.

diff --git a/regcomp.c b/regcomp.c
index d09d89f..9c70872 100644 (file)
--- a/regcomp.c
+++ b/regcomp.c
@@ -10396,6 +10396,7 @@ tryagain:
            register UV ender;
            register char *p;
            char *s;
+#define MAX_NODE_STRING_SIZE 127
            STRLEN foldlen;
            U8 tmpbuf[UTF8_MAXBYTES_CASE+1], *foldbuf;
             U8 node_type;
@@ -10429,7 +10430,7 @@ tryagain:
              * non-final, but it is possible for there not to be any in the
              * entire node. */
            for (len = 0, p = RExC_parse - 1;
-                len < 127 && p < RExC_end;
+                len < MAX_NODE_STRING_SIZE && p < RExC_end;
                 len++)
            {
                char * const oldp = p;