// func Object tm_str(Object a)
Object tm_str(Object a) {
char buf[100];
memset(buf, 0, sizeof(buf));
switch (TM_TYPE(a)) {
case TYPE_STR:
return a;
case TYPE_NUM: {
char s[20];
double v = GET_NUM(a);
number_format(s, a);
return string_new(s);
}
case TYPE_LIST: {
Object str = string_new("");
str = string_append_char(str, '[');
int i, l = LIST_LEN(a);
for (i = 0; i < l; i++) {
Object obj = GET_LIST(a)->nodes[i];
/* reference to self in list */
if (obj_equals(a, obj)) {
str = string_append_sz(str, "[...]");
} else if (obj.type == TYPE_STR) {
str = string_append_char(str, '"');
str = string_append_obj(str, obj);
str = string_append_char(str, '"');
} else {
str = string_append_obj(str, obj);
}
if (i != l - 1) {
str = string_append_char(str, ',');
}
}
str = string_append_char(str, ']');
return str;
}
case TYPE_DICT:
sprintf(buf, "<dict at %p>", GET_DICT(a));
return string_new(buf);
case TYPE_FUNCTION:
function_format(buf, a);
return string_new(buf);
case TYPE_NONE:
return sz_to_string("None");
case TYPE_DATA:
return GET_DATA(a)->str(GET_DATA(a));
default:
tm_raise("str: not supported type %d", a.type);
}
return string_alloc("", 0);
}
static scheme_object* read_string(vm* context, FILE* in)
{
string_t* str = string_create();
//we read until the first unescaped double quote character
int c;
while((c = getc(in)) != '"')
{
if(c == '\\')
{
//this is an escaped character
c = getc(in);
if(c == 'n')
{
c = '\n';
}
else if(c == 't')
{
c = '\t';
}
}
if(c == EOF)
{
fprintf(stderr, "Unexpected termination of a string literal");
exit(1);
}
string_append_char(str, c);
}
return make_string(context, str);
}
int string_replace_with(String* source, char* token, char* rep) {
assert(source != NULL && token != NULL && rep != NULL);
if (strcmp(token, rep) == 0) return 0;
size_t tok_len = strlen(token);
size_t rep_len = strlen(rep);
String* result = new_string();
for (size_t i = 0; i < tok_len; i++) {
int mem_result = memcmp((source->string + i), token, tok_len);
if (mem_result == 0) {
string_append(result, rep);
i += tok_len;
} else {
string_append_char(result, source->string[i]);
}
}
if (strcmp(result->string, source->string) != 0) {
free_string(source);
source = result;
return 1;
} else {
return 0;
}
}
/* create error message */
char *pool_error_message(char *message)
{
String *str;
str = init_string("");
string_append_char(str,message);
return str->data;
}
Tokens* lex_file(FILE* file) {
String* contents = new_string();
Tokens* tokens = new_tokens();
if (contents == NULL || tokens == NULL || file == NULL) return NULL;
int c;
while ((c = fgetc(file)) != EOF) {
string_append_char(contents, (char) c);
}
for (size_t i = 0; i < contents->length; i++) {
}
}
bool file_readLine_delim(FILE *file, string_t *str, char delim)
{
bool retval = false;
int c;
while((c = fgetc(file)) != EOF)
{
retval = true;
if (c == delim)
break;
string_append_char(str, (char)c);
}
return retval;
}
void inline lex_plain(Tokens* tokens, String* file, size_t* pos) {
enum token_type last_t = get_last_token_type(tokens);
if (last_t == PLAIN || last_t == EX_END) {
int is_exp = lex_ex_start(tokens, file, pos);
String* content = new_string();
while (!is_exp) {
if ((*pos) >= file->length) break;
string_append_char(content, file->string[*pos]);
*pos += 1;
is_exp = lex_ex_start(tokens, file, pos);
}
lex_content_token(tokens, content, PLAIN);
}
}
static scheme_object* read_symbol(vm* context, FILE* in)
{
string_t* str = string_create();
int c = getc(in);
while(is_initial(c) || isdigit(c) || c == '+' || c == '-')
{
string_append_char(str, c);
c = getc(in);
}
if(!is_delimiter(c))
{
fprintf(stderr, "symbol not folowed by delimiter\n");
exit(1);
}
ungetc(c, in);
scheme_object* rval = make_symbol(context, string_cstring(str));
string_free(str);
return rval;
}
int main()
{
string *s = string_init();
string *o;
string *subs;
string *q = string_init_cstring("quit");
string_read_line(s);
while(string_cmp(s, q))
{
string_print(s);
string_reset(s);
string_read_line(s);
}
string_append(s, q);
o = string_cat(s, q);
string_print(s);
string_print(o);
string_append_cstring(o, "hello");
string_append_char(o, 'J');
string_print(o);
subs = string_substring(o, 5, 6);
printf("--\n");
printf("%c\n", string_get(s, 5));
printf("%d\n", string_index(o, 'o'));
string_print(subs);
printf("--\n");
o = string_free(o);
s = string_free(s);
q = string_free(q);
subs = string_free(subs);
return 0;
}
NEOERR *html_strip_alloc(const char *src, int slen,
char **out)
{
NEOERR *err = STATUS_OK;
STRING out_s;
int x = 0;
int strip_match = -1;
int state = 0;
char amp[10];
int amp_start = 0;
char buf[10];
int ampl = 0;
string_init(&out_s);
err = string_append (&out_s, "");
if (err) return nerr_pass (err);
while (x < slen)
{
switch (state) {
case 0:
/* Default */
if (src[x] == '&')
{
state = 3;
ampl = 0;
amp_start = x;
}
else if (src[x] == '<')
{
state = 1;
}
else
{
if (strip_match == -1)
{
err = string_append_char(&out_s, src[x]);
if (err) break;
}
}
x++;
break;
case 1:
/* Starting TAG */
if (src[x] == '>')
{
state = 0;
}
else if (src[x] == '/')
{
}
else
{
}
x++;
break;
case 2:
/* In TAG */
if (src[x] == '>')
{
state = 0;
}
x++;
break;
case 3:
/* In AMP */
if (src[x] == ';')
{
amp[ampl] = '\0';
state = 0;
err = string_append(&out_s, html_expand_amp_8859_1(amp, buf));
if (err) break;
}
else
{
if (ampl < sizeof(amp)-1)
amp[ampl++] = tolower(src[x]);
else
{
/* broken html... just back up */
x = amp_start;
err = string_append_char(&out_s, src[x]);
if (err) break;
state = 0;
}
}
x++;
break;
}
if (err) break;
}
if (err)
{
string_clear (&out_s);
return nerr_pass (err);
}
*out = out_s.buf;
return STATUS_OK;
}
static NEOERR *split_and_convert (const char *src, int slen,
STRING *out, HTML_CONVERT_OPTS *opts)
{
NEOERR *err = STATUS_OK;
regmatch_t email_match, url_match;
int errcode;
char *ptr, *esc;
char errbuf[256];
struct _parts *parts;
int part_count;
int part;
int x, i;
int spaces = 0;
if (!CompiledRe)
{
#ifdef HAVE_PTHREADS
/* In threaded environments, we have to mutex lock to do this regcomp, but
* we don't want to use a mutex every time to check that it was regcomp.
* So, we only lock if our first test of compiled was false */
err = mLock(&InitLock);
if (err != STATUS_OK) return nerr_pass(err);
if (CompiledRe == 0) {
#endif
if ((errcode = regcomp (&EmailRegex, EmailRe, REG_ICASE | REG_EXTENDED)))
{
regerror (errcode, &EmailRegex, errbuf, sizeof(errbuf));
err = nerr_raise (NERR_PARSE, "Unable to compile EmailRE: %s", errbuf);
}
if ((errcode = regcomp (&UrlRegex, URLRe, REG_ICASE | REG_EXTENDED)))
{
regerror (errcode, &UrlRegex, errbuf, sizeof(errbuf));
err = nerr_raise (NERR_PARSE, "Unable to compile URLRe: %s", errbuf);
}
CompiledRe = 1;
#ifdef HAVE_PTHREADS
}
if (err) {
mUnlock(&InitLock);
return err;
}
err = mUnlock(&InitLock);
if (err != STATUS_OK) return nerr_pass(err);
#else
if (err) {
return err;
}
#endif
}
part_count = 20;
parts = (struct _parts *) malloc (sizeof(struct _parts) * part_count);
part = 0;
x = 0;
if (regexec (&EmailRegex, src+x, 1, &email_match, 0) != 0)
{
email_match.rm_so = -1;
email_match.rm_eo = -1;
}
else
{
email_match.rm_so += x;
email_match.rm_eo += x;
}
if (regexec (&UrlRegex, src+x, 1, &url_match, 0) != 0)
{
url_match.rm_so = -1;
url_match.rm_eo = -1;
}
else
{
url_match.rm_so += x;
url_match.rm_eo += x;
}
while ((x < slen) && !((email_match.rm_so == -1) && (url_match.rm_so == -1)))
{
if (part >= part_count)
{
void *new_ptr;
part_count *= 2;
new_ptr = realloc (parts, sizeof(struct _parts) * part_count);
if (new_ptr == NULL) {
free(parts);
return nerr_raise (NERR_NOMEM,
"Unable to increase url matcher to %d urls",
part_count);
}
parts = (struct _parts *) new_ptr;
}
if ((url_match.rm_so != -1) && ((email_match.rm_so == -1) || (url_match.rm_so <= email_match.rm_so)))
{
parts[part].begin = url_match.rm_so;
parts[part].end = url_match.rm_eo;
parts[part].type = SC_TYPE_URL;
x = parts[part].end + 1;
part++;
if (x < slen)
{
if (regexec (&UrlRegex, src+x, 1, &url_match, 0) != 0)
{
url_match.rm_so = -1;
url_match.rm_eo = -1;
}
else
{
url_match.rm_so += x;
url_match.rm_eo += x;
}
if ((email_match.rm_so != -1) && (x > email_match.rm_so))
{
if (regexec (&EmailRegex, src+x, 1, &email_match, 0) != 0)
{
email_match.rm_so = -1;
email_match.rm_eo = -1;
}
else
{
email_match.rm_so += x;
email_match.rm_eo += x;
}
}
}
}
else
{
parts[part].begin = email_match.rm_so;
parts[part].end = email_match.rm_eo;
parts[part].type = SC_TYPE_EMAIL;
x = parts[part].end + 1;
part++;
if (x < slen)
{
if (regexec (&EmailRegex, src+x, 1, &email_match, 0) != 0)
{
email_match.rm_so = -1;
email_match.rm_eo = -1;
}
else
{
email_match.rm_so += x;
email_match.rm_eo += x;
}
if ((url_match.rm_so != -1) && (x > url_match.rm_so))
{
if (regexec (&UrlRegex, src+x, 1, &url_match, 0) != 0)
{
url_match.rm_so = -1;
url_match.rm_eo = -1;
}
else
{
url_match.rm_so += x;
url_match.rm_eo += x;
}
}
}
}
}
i = 0;
x = 0;
while (x < slen)
{
if ((i >= part) || (x < parts[i].begin))
{
ptr = strpbrk(src + x, "&<>\r\n ");
if (ptr == NULL)
{
if (spaces)
{
int sp;
for (sp = 0; sp < spaces - 1; sp++)
{
err = string_append (out, " ");
if (err != STATUS_OK) break;
}
if (err != STATUS_OK) break;
err = string_append_char (out, ' ');
}
spaces = 0;
if (i < part)
{
err = string_appendn (out, src + x, parts[i].begin - x);
x = parts[i].begin;
}
else
{
err = string_append (out, src + x);
x = slen;
}
}
else
{
if ((i >= part) || ((ptr - src) < parts[i].begin))
{
if (spaces)
{
int sp;
for (sp = 0; sp < spaces - 1; sp++)
{
err = string_append (out, " ");
if (err != STATUS_OK) break;
}
if (err != STATUS_OK) break;
err = string_append_char (out, ' ');
}
spaces = 0;
err = string_appendn (out, src + x, (ptr - src) - x);
if (err != STATUS_OK) break;
x = ptr - src;
if (src[x] == ' ')
{
if (opts->space_convert)
{
spaces++;
}
else
err = string_append_char (out, ' ');
}
else
{
if (src[x] != '\n' && spaces)
{
int sp;
for (sp = 0; sp < spaces - 1; sp++)
{
err = string_append (out, " ");
if (err != STATUS_OK) break;
}
if (err != STATUS_OK) break;
err = string_append_char (out, ' ');
}
spaces = 0;
if (src[x] == '&')
err = string_append (out, "&");
else if (src[x] == '<')
err = string_append (out, "<");
else if (src[x] == '>')
err = string_append (out, ">");
else if (src[x] == '\n')
if (opts->newlines_convert)
err = string_append (out, "<br/>\n");
else if (x && src[x-1] == '\n')
err = string_append (out, "<p/>\n");
else
err = string_append_char (out, '\n');
else if (src[x] != '\r')
err = nerr_raise (NERR_ASSERT, "src[x] == '%c'", src[x]);
}
x++;
}
else
{
if (spaces)
{
int sp;
for (sp = 0; sp < spaces - 1; sp++)
{
err = string_append (out, " ");
if (err != STATUS_OK) break;
}
if (err != STATUS_OK) break;
err = string_append_char (out, ' ');
}
spaces = 0;
err = string_appendn (out, src + x, parts[i].begin - x);
x = parts[i].begin;
}
}
}
else
{
if (spaces)
{
int sp;
for (sp = 0; sp < spaces - 1; sp++)
{
err = string_append (out, " ");
if (err != STATUS_OK) break;
}
if (err != STATUS_OK) break;
err = string_append_char (out, ' ');
}
spaces = 0;
if (parts[i].type == SC_TYPE_URL)
{
char last_char = src[parts[i].end-1];
int suffix=0;
if (last_char == '.' || last_char == ',') { suffix=1; }
err = string_append (out, " <a ");
if (err != STATUS_OK) break;
if (opts->url_class)
{
err = string_appendf (out, "class=%s ", opts->url_class);
if (err) break;
}
if (opts->url_target)
{
err = string_appendf (out, "target=\"%s\" ", opts->url_target);
if (err) break;
}
err = string_append(out, "href=\"");
if (err) break;
if (opts->bounce_url)
{
char *url, *esc_url, *new_url;
int url_len;
if (!strncasecmp(src + x, "www.", 4))
{
url_len = 7 + parts[i].end - x - suffix;
url = (char *) malloc(url_len+1);
if (url == NULL)
{
err = nerr_raise(NERR_NOMEM,
"Unable to allocate memory to convert url");
break;
}
strcpy(url, "http://");
strncat(url, src + x, parts[i].end - x - suffix);
}
else
{
url_len = parts[i].end - x - suffix;
url = (char *) malloc(url_len+1);
if (url == NULL)
{
err = nerr_raise(NERR_NOMEM,
"Unable to allocate memory to convert url");
break;
}
strncpy(url, src + x, parts[i].end - x - suffix);
url[url_len] = '\0';
}
err = cgi_url_escape(url, &esc_url);
free(url);
if (err) {
free(esc_url);
break;
}
new_url = sprintf_alloc(opts->bounce_url, esc_url);
free(esc_url);
if (new_url == NULL)
{
err = nerr_raise(NERR_NOMEM, "Unable to allocate memory to convert url");
break;
}
err = string_append (out, new_url);
free(new_url);
if (err) break;
}
else
{
if (!strncasecmp(src + x, "www.", 4))
{
err = string_append (out, "http://");
if (err != STATUS_OK) break;
}
err = string_appendn (out, src + x, parts[i].end - x - suffix);
if (err != STATUS_OK) break;
}
err = string_append (out, "\">");
if (err != STATUS_OK) break;
if (opts->link_name) {
err = html_escape_alloc((opts->link_name),
strlen(opts->link_name), &esc);
} else {
err = html_escape_alloc((src + x), parts[i].end - x - suffix, &esc);
}
if (err != STATUS_OK) break;
err = string_append (out, esc);
free(esc);
if (err != STATUS_OK) break;
err = string_append (out, "</a>");
if (suffix) {
err = string_appendn(out,src + parts[i].end - 1,1);
if (err != STATUS_OK) break;
}
}
else /* type == SC_TYPE_EMAIL */
{
err = string_append (out, "<a ");
if (err != STATUS_OK) break;
if (opts->mailto_class)
{
err = string_appendf (out, "class=%s ", opts->mailto_class);
if (err) break;
}
err = string_append(out, "href=\"mailto:");
if (err) break;
err = string_appendn (out, src + x, parts[i].end - x);
if (err != STATUS_OK) break;
err = string_append (out, "\">");
if (err != STATUS_OK) break;
err = html_escape_alloc(src + x, parts[i].end - x, &esc);
if (err != STATUS_OK) break;
err = string_append (out, esc);
free(esc);
if (err != STATUS_OK) break;
err = string_append (out, "</a>");
}
x = parts[i].end;
i++;
}
if (err != STATUS_OK) break;
}
free (parts);
return err;
}
/* attributes are of the form [key1, key2, key3=value, key4="repr"] */
static NEOERR* parse_attr(char **str, HDF_ATTR **attr)
{
NEOERR *err = STATUS_OK;
char *s = *str;
char *k, *v;
int k_l, v_l;
STRING buf;
char c;
HDF_ATTR *ha, *hal = NULL;
*attr = NULL;
string_init(&buf);
while (*s && *s != ']')
{
k = s;
k_l = 0;
v = NULL;
v_l = 0;
while (*s && isalnum(*s)) s++;
k_l = s-k;
if (*s == '\0' || k_l == 0)
{
_dealloc_hdf_attr(attr);
return nerr_raise(NERR_PARSE, "Misformed attribute specification: %s", *str);
}
SKIPWS(s);
if (*s == '=')
{
s++;
SKIPWS(s);
if (*s == '"')
{
s++;
while (*s && *s != '"')
{
if (*s == '\\')
{
if (isdigit(*(s+1)))
{
s++;
c = *s - '0';
if (isdigit(*(s+1)))
{
s++;
c = (c * 8) + (*s - '0');
if (isdigit(*(s+1)))
{
s++;
c = (c * 8) + (*s - '0');
}
}
}
else
{
s++;
if (*s == 'n') c = '\n';
else if (*s == 't') c = '\t';
else if (*s == 'r') c = '\r';
else c = *s;
}
err = string_append_char(&buf, c);
}
else
{
err = string_append_char(&buf, *s);
}
if (err)
{
string_clear(&buf);
_dealloc_hdf_attr(attr);
return nerr_pass(err);
}
s++;
}
if (*s == '\0')
{
_dealloc_hdf_attr(attr);
string_clear(&buf);
return nerr_raise(NERR_PARSE, "Misformed attribute specification: %s", *str);
}
s++;
v = buf.buf;
v_l = buf.len;
}
else
{
v = s;
while (*s && *s != ' ' && *s != ',' && *s != ']') s++;
if (*s == '\0')
{
_dealloc_hdf_attr(attr);
return nerr_raise(NERR_PARSE, "Misformed attribute specification: %s", *str);
}
v_l = s-v;
}
}
else
{
v = "1";
}
ha = (HDF_ATTR*) calloc (1, sizeof(HDF_ATTR));
if (ha == NULL)
{
_dealloc_hdf_attr(attr);
string_clear(&buf);
return nerr_raise(NERR_NOMEM, "Unable to load attributes: %s", s);
}
if (*attr == NULL) *attr = ha;
ha->key = neos_strndup(k, k_l);
if (v)
ha->value = neos_strndup(v, v_l);
else
ha->value = strdup("");
if (ha->key == NULL || ha->value == NULL)
{
_dealloc_hdf_attr(attr);
string_clear(&buf);
return nerr_raise(NERR_NOMEM, "Unable to load attributes: %s", s);
}
if (hal != NULL) hal->next = ha;
hal = ha;
string_clear(&buf);
SKIPWS(s);
if (*s == ',')
{
s++;
SKIPWS(s);
}
}
if (*s == '\0')
{
_dealloc_hdf_attr(attr);
return nerr_raise(NERR_PARSE, "Misformed attribute specification: %s", *str);
}
*str = s+1;
return STATUS_OK;
}
void
string_append_string(String * string, String * data)
{
string_append_char(string, data->data);
}
/*
* trigger_failover_command: execute specified command at failover.
* command_line is null-terminated string.
*/
static int trigger_failover_command(int node, const char *command_line)
{
int r = 0;
String *exec_cmd;
char port_buf[6];
char buf[2];
BackendInfo *info;
if (command_line == NULL || (strlen(command_line) == 0))
return 0;
/* check nodeID */
if (node < 0 || node > NUM_BACKENDS)
return -1;
info = pool_get_node_info(node);
if (!info)
return -1;
buf[1] = '\0';
pool_memory = pool_memory_create(PREPARE_BLOCK_SIZE);
if (!pool_memory)
{
pool_error("trigger_failover_command: pool_memory_create() failed");
return -1;
}
exec_cmd = init_string("");
while (*command_line)
{
if (*command_line == '%')
{
if (*(command_line + 1))
{
char val = *(command_line + 1);
switch (val)
{
case 'p': /* port */
snprintf(port_buf, sizeof(port_buf), "%d", info->backend_port);
string_append_char(exec_cmd, port_buf);
break;
case 'D': /* database directory */
string_append_char(exec_cmd, info->backend_data_directory);
break;
case 'd': /* node id */
snprintf(port_buf, sizeof(port_buf), "%d", node);
string_append_char(exec_cmd, port_buf);
break;
case 'h': /* host name */
string_append_char(exec_cmd, info->backend_hostname);
break;
case 'm': /* new master node id */
snprintf(port_buf, sizeof(port_buf), "%d", get_next_master_node());
string_append_char(exec_cmd, port_buf);
break;
case 'M': /* old master node id */
snprintf(port_buf, sizeof(port_buf), "%d", MASTER_NODE_ID);
string_append_char(exec_cmd, port_buf);
break;
case '%': /* escape */
string_append_char(exec_cmd, "%");
break;
default: /* ignore */
break;
}
command_line++;
}
} else {
buf[0] = *command_line;
string_append_char(exec_cmd, buf);
}
command_line++;
}
if (strlen(exec_cmd->data) != 0)
{
pool_log("execute command: %s", exec_cmd->data);
r = system(exec_cmd->data);
}
pool_memory_delete(pool_memory, 0);
pool_memory = NULL;
return r;
}
