Allow regexp.t to take a command line argument for the filename of

[p5sagit/p5-mst-13.2.git] / toke.c

diff --git a/toke.c b/toke.c
index 25c3f3e..e34f796 100644 (file)
--- a/toke.c
+++ b/toke.c
@@ -735,13 +735,12 @@ Perl_lex_end(pTHX)
  */
 
 STATIC void
-S_incline(pTHX_ char *s)
+S_incline(pTHX_ const char *s)
 {
     dVAR;
-    char *t;
-    char *n;
-    char *e;
-    char ch;
+    const char *t;
+    const char *n;
+    const char *e;
 
     CopLINE_inc(PL_curcop);
     if (*s++ != '#')
@@ -781,34 +780,48 @@ S_incline(pTHX_ char *s)
     if (*e != '\n' && *e != '\0')
        return;         /* false alarm */
 
-    ch = *t;
-    *t = '\0';
     if (t - s > 0) {
+       const STRLEN len = t - s;
 #ifndef USE_ITHREADS
        const char * const cf = CopFILE(PL_curcop);
        STRLEN tmplen = cf ? strlen(cf) : 0;
        if (tmplen > 7 && strnEQ(cf, "(eval ", 6)) {
            /* must copy *{"::_<(eval N)[oldfilename:L]"}
             * to *{"::_<newfilename"} */
-           char smallbuf[256], smallbuf2[256];
-           char *tmpbuf, *tmpbuf2;
-           GV **gvp, *gv2;
-           STRLEN tmplen2 = strlen(s);
-           if (tmplen + 3 < sizeof smallbuf)
+           /* However, the long form of evals is only turned on by the
+              debugger - usually they're "(eval %lu)" */
+           char smallbuf[128];
+           char *tmpbuf;
+           GV **gvp;
+           STRLEN tmplen2 = len;
+           if (tmplen + 2 <= sizeof smallbuf)
                tmpbuf = smallbuf;
            else
-               Newx(tmpbuf, tmplen + 3, char);
-           if (tmplen2 + 3 < sizeof smallbuf2)
-               tmpbuf2 = smallbuf2;
-           else
-               Newx(tmpbuf2, tmplen2 + 3, char);
-           tmpbuf[0] = tmpbuf2[0] = '_';
-           tmpbuf[1] = tmpbuf2[1] = '<';
-           memcpy(tmpbuf + 2, cf, ++tmplen);
-           memcpy(tmpbuf2 + 2, s, ++tmplen2);
-           ++tmplen; ++tmplen2;
+               Newx(tmpbuf, tmplen + 2, char);
+           tmpbuf[0] = '_';
+           tmpbuf[1] = '<';
+           memcpy(tmpbuf + 2, cf, tmplen);
+           tmplen += 2;
            gvp = (GV**)hv_fetch(PL_defstash, tmpbuf, tmplen, FALSE);
            if (gvp) {
+               char *tmpbuf2;
+               GV *gv2;
+
+               if (tmplen2 + 2 <= sizeof smallbuf)
+                   tmpbuf2 = smallbuf;
+               else
+                   Newx(tmpbuf2, tmplen2 + 2, char);
+
+               if (tmpbuf2 != smallbuf || tmpbuf != smallbuf) {
+                   /* Either they malloc'd it, or we malloc'd it,
+                      so no prefix is present in ours.  */
+                   tmpbuf2[0] = '_';
+                   tmpbuf2[1] = '<';
+               }
+
+               memcpy(tmpbuf2 + 2, s, tmplen2);
+               tmplen2 += 2;
+
                gv2 = *(GV**)hv_fetch(PL_defstash, tmpbuf2, tmplen2, TRUE);
                if (!isGV(gv2)) {
                    gv_init(gv2, PL_defstash, tmpbuf2, tmplen2, FALSE);
@@ -817,15 +830,15 @@ S_incline(pTHX_ char *s)
                    GvHV(gv2) = (HV*)SvREFCNT_inc(GvHV(*gvp));
                    GvAV(gv2) = (AV*)SvREFCNT_inc(GvAV(*gvp));
                }
+
+               if (tmpbuf2 != smallbuf) Safefree(tmpbuf2);
            }
            if (tmpbuf != smallbuf) Safefree(tmpbuf);
-           if (tmpbuf2 != smallbuf2) Safefree(tmpbuf2);
        }
 #endif
        CopFILE_free(PL_curcop);
-       CopFILE_set(PL_curcop, s);
+       CopFILE_setn(PL_curcop, s, len);
     }
-    *t = ch;
     CopLINE_set(PL_curcop, atoi(n)-1);
 }
 
@@ -5520,7 +5533,7 @@ Perl_yylex(pTHX)
                        }
                    }
                    if (probable_sub) {
-                       gv = gv_fetchpv(PL_tokenbuf, TRUE, SVt_PVCV);
+                       gv = gv_fetchpv(PL_tokenbuf, GV_ADD, SVt_PVCV);
                        op_free(yylval.opval);
                        yylval.opval = newCVREF(0, newGVOP(OP_GV, 0, gv));
                        yylval.opval->op_private |= OPpENTERSUB_NOPAREN;