simple_output &simple_output::enable_newlines (int auto_newlines)
{
check_newline(0);
newlines = auto_newlines;
check_newline(0);
return *this;
}
/*
* Process token tk
* - if p is in HVMODE and tk is either an atomic or an open token
* then tk->bsize is used to decide whether tk fits on the current line
*/
static void print_token(printer_t *p, void *tk) {
pp_open_token_t *open;
pp_atomic_token_t *atom;
pp_open_token_t copy;
switch (ptr_tag(tk)) {
case PP_TOKEN_OPEN_TAG:
open = untag_open(tk);
check_newline(p, open->bsize);
// print_open_token may free the token so we
// make a local copy first.
copy = *open;
print_open_token(p, open);
if (p->full_line) {
p->overfull_count ++;
} else {
printer_push_state(p, ©);
}
break;
case PP_TOKEN_ATOMIC_TAG:
atom = untag_atomic(tk);
check_newline(p, atom->bsize);
print_atomic_token(p, atom);
p->no_space = false;
p->no_break = false; // this has no effect in HMODE
break;
case PP_TOKEN_CLOSE_TAG:
print_close_token(p, untag_close(tk));
// space and break are allowed now
p->no_space = false;
p->no_break = false;
if (p->overfull_count > 0) {
p->overfull_count --;
} else {
printer_pop_state(p);
}
break;
case PP_TOKEN_SEPARATOR_TAG:
atom = untag_separator(tk);
/*
* a separator is treated like an atomic token
* with no space or break allowed before or after
* the token
*/
p->no_space = true;
p->no_break = true;
print_atomic_token(p, atom);
p->no_space = true;
p->no_break = true; // this has no effect in HMODE
break;
}
// for debugging
fflush(p->file);
}
TSP *tsp_read_data(char *fname)
{ struct dsa _dsa, *dsa = &_dsa;
TSP *tsp = NULL;
dsa->fname = fname;
xprintf("tsp_read_data: reading TSP data from `%s'...\n",
dsa->fname);
dsa->fp = fopen(dsa->fname, "r");
if (dsa->fp == NULL)
{ xprintf("tsp_read_data: unable to open `%s' - %s\n",
dsa->fname, strerror(errno));
goto fail;
}
tsp = xmalloc(sizeof(TSP));
tsp->name = NULL;
tsp->type = TSP_UNDEF;
tsp->comment = NULL;
tsp->dimension = 0;
tsp->edge_weight_type = TSP_UNDEF;
tsp->edge_weight_format = TSP_UNDEF;
tsp->display_data_type = TSP_UNDEF;
tsp->node_x_coord = NULL;
tsp->node_y_coord = NULL;
tsp->dply_x_coord = NULL;
tsp->dply_y_coord = NULL;
tsp->tour = NULL;
tsp->edge_weight = NULL;
dsa->seqn = 1;
if (get_char(dsa)) goto fail;
loop: if (scan_keyword(dsa)) goto fail;
if (strcmp(dsa->token, "NAME") == 0)
{ if (tsp->name != NULL)
{ xprintf("%s:%d: NAME entry multiply defined\n", dsa->fname,
dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_token(dsa, 0)) goto fail;
if (strlen(dsa->token) == 0)
{ xprintf("%s:%d: NAME entry incomplete\n", dsa->fname,
dsa->seqn);
goto fail;
}
tsp->name = xmalloc(strlen(dsa->token) + 1);
strcpy(tsp->name, dsa->token);
xprintf("tsp_read_data: NAME: %s\n", tsp->name);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "TYPE") == 0)
{ if (tsp->type != TSP_UNDEF)
{ xprintf("%s:%d: TYPE entry multiply defined\n", dsa->fname,
dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_keyword(dsa)) goto fail;
if (strcmp(dsa->token, "TSP") == 0)
tsp->type = TSP_TSP;
else if (strcmp(dsa->token, "ATSP") == 0)
tsp->type = TSP_ATSP;
else if (strcmp(dsa->token, "TOUR") == 0)
tsp->type = TSP_TOUR;
else
{ xprintf("%s:%d: data type `%s' not recognized\n",
dsa->fname, dsa->seqn, dsa->token);
goto fail;
}
xprintf("tsp_read_data: TYPE: %s\n", dsa->token);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "COMMENT") == 0)
{ if (tsp->comment != NULL)
{ xprintf("%s:%d: COMMENT entry multiply defined\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_comment(dsa)) goto fail;
tsp->comment = xmalloc(strlen(dsa->token) + 1);
strcpy(tsp->comment, dsa->token);
xprintf("tsp_read_data: COMMENT: %s\n", tsp->comment);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "DIMENSION") == 0)
{ if (tsp->dimension != 0)
{ xprintf("%s:%d: DIMENSION entry multiply defined\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_integer(dsa, 0, &tsp->dimension)) goto fail;
if (tsp->dimension < 1)
{ xprintf("%s:%d: invalid dimension\n", dsa->fname,
dsa->seqn);
goto fail;
}
xprintf("tsp_read_data: DIMENSION: %d\n", tsp->dimension);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "EDGE_WEIGHT_TYPE") == 0)
{ if (tsp->edge_weight_type != TSP_UNDEF)
{ xprintf("%s:%d: EDGE_WEIGHT_TYPE entry multiply defined\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_keyword(dsa)) goto fail;
if (strcmp(dsa->token, "GEO") == 0)
tsp->edge_weight_type = TSP_GEO;
else if (strcmp(dsa->token, "EUC_2D") == 0)
tsp->edge_weight_type = TSP_EUC_2D;
else if (strcmp(dsa->token, "ATT") == 0)
tsp->edge_weight_type = TSP_ATT;
else if (strcmp(dsa->token, "EXPLICIT") == 0)
tsp->edge_weight_type = TSP_EXPLICIT;
else if (strcmp(dsa->token, "CEIL_2D") == 0)
tsp->edge_weight_type = TSP_CEIL_2D;
else
{ xprintf("%s:%d: edge weight type `%s' not recognized\n",
dsa->fname, dsa->seqn, dsa->token);
goto fail;
}
xprintf("tsp_read_data: EDGE_WEIGHT_TYPE: %s\n", dsa->token);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "EDGE_WEIGHT_FORMAT") == 0)
{ if (tsp->edge_weight_format != TSP_UNDEF)
{ xprintf(
"%s:%d: EDGE_WEIGHT_FORMAT entry multiply defined\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_keyword(dsa)) goto fail;
if (strcmp(dsa->token, "UPPER_ROW") == 0)
tsp->edge_weight_format = TSP_UPPER_ROW;
else if (strcmp(dsa->token, "FULL_MATRIX") == 0)
tsp->edge_weight_format = TSP_FULL_MATRIX;
else if (strcmp(dsa->token, "FUNCTION") == 0)
tsp->edge_weight_format = TSP_FUNCTION;
else if (strcmp(dsa->token, "LOWER_DIAG_ROW") == 0)
tsp->edge_weight_format = TSP_LOWER_DIAG_ROW;
else
{ xprintf("%s:%d: edge weight format `%s' not recognized\n",
dsa->fname, dsa->seqn, dsa->token);
goto fail;
}
xprintf("tsp_read_data: EDGE_WEIGHT_FORMAT: %s\n", dsa->token);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "DISPLAY_DATA_TYPE") == 0)
{ if (tsp->display_data_type != TSP_UNDEF)
{ xprintf("%s:%d: DISPLAY_DATA_TYPE entry multiply defined\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_colon(dsa)) goto fail;
if (scan_keyword(dsa)) goto fail;
if (strcmp(dsa->token, "COORD_DISPLAY") == 0)
tsp->display_data_type = TSP_COORD_DISPLAY;
else if (strcmp(dsa->token, "TWOD_DISPLAY") == 0)
tsp->display_data_type = TSP_TWOD_DISPLAY;
else
{ xprintf("%s:%d: display data type `%s' not recognized\n",
dsa->fname, dsa->seqn, dsa->token);
goto fail;
}
xprintf("tsp_read_data: DISPLAY_DATA_TYPE: %s\n", dsa->token);
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "NODE_COORD_SECTION") == 0)
{ int n = tsp->dimension, k, node;
if (n == 0)
{ xprintf("%s:%d: DIMENSION entry not specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (tsp->node_x_coord != NULL)
{ xprintf("%s:%d: NODE_COORD_SECTION multiply specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_newline(dsa)) goto fail;
tsp->node_x_coord = xcalloc(1+n, sizeof(double));
tsp->node_y_coord = xcalloc(1+n, sizeof(double));
for (node = 1; node <= n; node++)
tsp->node_x_coord[node] = tsp->node_y_coord[node] = DBL_MAX;
for (k = 1; k <= n; k++)
{ if (scan_integer(dsa, 0, &node)) goto fail;
if (!(1 <= node && node <= n))
{ xprintf("%s:%d: invalid node number %d\n", dsa->fname,
dsa->seqn, node);
goto fail;
}
if (tsp->node_x_coord[node] != DBL_MAX)
{ xprintf("%s:%d: node number %d multiply specified\n",
dsa->fname, dsa->seqn, node);
goto fail;
}
if (scan_number(dsa, 0, &tsp->node_x_coord[node]))
goto fail;
if (scan_number(dsa, 0, &tsp->node_y_coord[node]))
goto fail;
if (check_newline(dsa)) goto fail;
}
}
else if (strcmp(dsa->token, "DISPLAY_DATA_SECTION") == 0)
{ int n = tsp->dimension, k, node;
if (n == 0)
{ xprintf("%s:%d: DIMENSION entry not specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (tsp->dply_x_coord != NULL)
{ xprintf("%s:%d: DISPLAY_DATA_SECTION multiply specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_newline(dsa)) goto fail;
tsp->dply_x_coord = xcalloc(1+n, sizeof(double));
tsp->dply_y_coord = xcalloc(1+n, sizeof(double));
for (node = 1; node <= n; node++)
tsp->dply_x_coord[node] = tsp->dply_y_coord[node] = DBL_MAX;
for (k = 1; k <= n; k++)
{ if (scan_integer(dsa, 0, &node)) goto fail;
if (!(1 <= node && node <= n))
{ xprintf("%s:%d: invalid node number %d\n", dsa->fname,
dsa->seqn, node);
goto fail;
}
if (tsp->dply_x_coord[node] != DBL_MAX)
{ xprintf("%s:%d: node number %d multiply specified\n",
dsa->fname, dsa->seqn, node);
goto fail;
}
if (scan_number(dsa, 0, &tsp->dply_x_coord[node]))
goto fail;
if (scan_number(dsa, 0, &tsp->dply_y_coord[node]))
goto fail;
if (check_newline(dsa)) goto fail;
}
}
else if (strcmp(dsa->token, "TOUR_SECTION") == 0)
{ int n = tsp->dimension, k, node;
if (n == 0)
{ xprintf("%s:%d: DIMENSION entry not specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (tsp->tour != NULL)
{ xprintf("%s:%d: TOUR_SECTION multiply specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_newline(dsa)) goto fail;
tsp->tour = xcalloc(1+n, sizeof(int));
for (k = 1; k <= n; k++)
{ if (scan_integer(dsa, 1, &node)) goto fail;
if (!(1 <= node && node <= n))
{ xprintf("%s:%d: invalid node number %d\n", dsa->fname,
dsa->seqn, node);
goto fail;
}
tsp->tour[k] = node;
}
if (scan_integer(dsa, 1, &node)) goto fail;
if (node != -1)
{ xprintf("%s:%d: extra node(s) detected\n", dsa->fname,
dsa->seqn);
goto fail;
}
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "EDGE_WEIGHT_SECTION") == 0)
{ int n = tsp->dimension, i, j, temp;
if (n == 0)
{ xprintf("%s:%d: DIMENSION entry not specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (tsp->edge_weight_format == TSP_UNDEF)
{ xprintf("%s:%d: EDGE_WEIGHT_FORMAT entry not specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (tsp->edge_weight != NULL)
{ xprintf("%s:%d: EDGE_WEIGHT_SECTION multiply specified\n",
dsa->fname, dsa->seqn);
goto fail;
}
if (check_newline(dsa)) goto fail;
tsp->edge_weight = xcalloc(1+n*n, sizeof(int));
switch (tsp->edge_weight_format)
{ case TSP_FULL_MATRIX:
for (i = 1; i <= n; i++)
{ for (j = 1; j <= n; j++)
{ if (scan_integer(dsa, 1, &temp)) goto fail;
tsp->edge_weight[(i - 1) * n + j] = temp;
}
}
break;
case TSP_UPPER_ROW:
for (i = 1; i <= n; i++)
{ tsp->edge_weight[(i - 1) * n + i] = 0;
for (j = i + 1; j <= n; j++)
{ if (scan_integer(dsa, 1, &temp)) goto fail;
tsp->edge_weight[(i - 1) * n + j] = temp;
tsp->edge_weight[(j - 1) * n + i] = temp;
}
}
break;
case TSP_LOWER_DIAG_ROW:
for (i = 1; i <= n; i++)
{ for (j = 1; j <= i; j++)
{ if (scan_integer(dsa, 1, &temp)) goto fail;
tsp->edge_weight[(i - 1) * n + j] = temp;
tsp->edge_weight[(j - 1) * n + i] = temp;
}
}
break;
default:
goto fail;
}
if (check_newline(dsa)) goto fail;
}
else if (strcmp(dsa->token, "EOF") == 0)
{ if (check_newline(dsa)) goto fail;
goto done;
}
else
{ xprintf("%s:%d: keyword `%s' not recognized\n", dsa->fname,
dsa->seqn, dsa->token);
goto fail;
}
goto loop;
done: xprintf("tsp_read_data: %d lines were read\n", dsa->seqn-1);
fclose(dsa->fp);
return tsp;
fail: if (tsp != NULL)
{ if (tsp->name != NULL) xfree(tsp->name);
if (tsp->comment != NULL) xfree(tsp->comment);
if (tsp->node_x_coord != NULL) xfree(tsp->node_x_coord);
if (tsp->node_y_coord != NULL) xfree(tsp->node_y_coord);
if (tsp->dply_x_coord != NULL) xfree(tsp->dply_x_coord);
if (tsp->dply_y_coord != NULL) xfree(tsp->dply_y_coord);
if (tsp->tour != NULL) xfree(tsp->tour);
if (tsp->edge_weight != NULL) xfree(tsp->edge_weight);
xfree(tsp);
}
if (dsa->fp != NULL) fclose(dsa->fp);
return NULL;
}