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comparison src/c/urweb.c @ 280:fdd7a698be01

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Compiling a parametrized query the inefficient way
author Adam Chlipala <adamc@hcoop.net>
date Tue, 02 Sep 2008 17:31:45 -0400
parents 137744c5b1ae
children 7d5860add50f
comparison
equal deleted inserted replaced
279:8bb46d87b074 280:fdd7a698be01
587 strcpy(s, s1); 587 strcpy(s, s1);
588 ctx->heap_front += len; 588 ctx->heap_front += len;
589 589
590 return s; 590 return s;
591 } 591 }
592
593
594 lw_Basis_string lw_Basis_sqlifyString(lw_context ctx, lw_Basis_string s) {
595 char *r, *s2;
596
597 lw_check_heap(ctx, strlen(s) * 2 + 4);
598
599 r = s2 = ctx->heap_front;
600 *s2++ = 'E';
601 *s2++ = '\'';
602
603 for (; *s; s++) {
604 char c = *s;
605
606 switch (c) {
607 case '\'':
608 strcpy(s2, "\\'");
609 s2 += 2;
610 break;
611 case '\\':
612 strcpy(s2, "\\\\");
613 s2 += 2;
614 break;
615 default:
616 if (isprint(c))
617 *s2++ = c;
618 else {
619 sprintf(s2, "\\%3o", c);
620 s2 += 4;
621 }
622 }
623 }
624
625 *s2++ = '\'';
626 *s2++ = 0;
627 ctx->heap_front = s2;
628 return r;
629 }