static int
njs_regexp_pattern_compile(njs_vm_t *vm, nxt_regex_t *regex, u_char *source,
int options)
{
uint32_t size;
nxt_int_t ret;
u_char buf[NJS_EXCEPTION_BUF_LENGTH];
/* Zero length means a zero-terminated string. */
ret = nxt_regex_compile(regex, source, 0, options, vm->regex_context);
if (nxt_fast_path(ret == NXT_OK)) {
return regex->ncaptures;
}
if (vm->parser != NULL) {
size = snprintf((char *) buf, NJS_EXCEPTION_BUF_LENGTH,
"SyntaxError: %s in %u",
vm->regex_context->error, vm->parser->lexer->line);
} else {
size = snprintf((char *) buf, NJS_EXCEPTION_BUF_LENGTH,
"SyntaxError: %s", vm->regex_context->error);
}
return njs_vm_throw_exception(vm, buf, size);
}
static u_char *
njs_regexp_compile_trace_handler(nxt_trace_t *trace, nxt_trace_data_t *td,
u_char *start)
{
int n;
u_char *p;
ssize_t size;
njs_vm_t *vm;
size = sizeof("SyntaxError: ") - 1;
memcpy(start, "SyntaxError: ", size);
p = start + size;
vm = trace->data;
trace = trace->next;
p = trace->handler(trace, td, p);
if (vm->parser != NULL) {
size = td->end - start;
n = snprintf((char *) p, size, " in %u", vm->parser->lexer->line);
if (n < size) {
p += n;
}
}
njs_vm_throw_exception(vm, start, p - start);
return p;
}
njs_ret_t
njs_regexp_match_error(njs_vm_t *vm)
{
uint32_t size;
u_char buf[NJS_EXCEPTION_BUF_LENGTH];
size = snprintf((char *) buf, NJS_EXCEPTION_BUF_LENGTH,
"RegExpError: %s", vm->regex_context->error);
return njs_vm_throw_exception(vm, buf, size);
}
static u_char *
njs_regexp_match_trace_handler(nxt_trace_t *trace, nxt_trace_data_t *td,
u_char *start)
{
u_char *p;
size_t size;
njs_vm_t *vm;
size = sizeof("RegExpError: ") - 1;
memcpy(start, "RegExpError: ", size);
p = start + size;
vm = trace->data;
trace = trace->next;
p = trace->handler(trace, td, p);
njs_vm_throw_exception(vm, start, p - start);
return p;
}