/**************************************************************************
*
*N deselect_feature_class_relate
*
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* Clear out a previously allocated feature class relate structure
* from memory.
*E
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels DOS Turbo C
*E
*************************************************************************/
void deselect_feature_class_relate( fcrel_type *fcrel )
{
register int i;
if (fcrel->nchain > 0) {
for (i=0;i<fcrel->nchain;i++) {
if (fcrel->table[i].status == OPENED) {
vpf_close_table(&(fcrel->table[i]));
}
}
free(fcrel->table);
ll_reset(fcrel->relate_list);
}
fcrel->nchain = 0;
}
/*************************************************************************
*
*N query_table
*
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* This function returns the set of selected rows of a VPF table
* based upon the evaluation of the given selection expression string.
*
* The expression is strictly evaluated left to right. No nesting
* is supported, so parentheses are not allowed. The expression
* must match the form:
* <field><log op><value> [ <join> <field><log op><value>]
* where,
* <field> is a valid field name of the table.
* <log op> is one of the following: =, <, >, <=, >=, <> (not equal).
* <value> is a valid value for the field.
* <join> is either " AND " or " OR ".
* Any number of clauses (<field><log op><value>) may be joined
* together with AND or OR to form the expression.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Parameters:
*A
* expression <input>==(char *) selection expression string.
* table <input>==(vpf_table_type) VPF table structure.
* return <output>==(set_type) set of selected rows.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels May 1991 DOS Turbo C
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* External Variables:
*X
* None
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Functions Called:
*F
* set_type set_init( rspf_int32 n ) SET.C
* void set_insert( rspf_int32 element, set_type set ) SET.C
* linked_list_type parse_expression( char *expression,
* vpf_table_type table ) VPFQUERY.C
* row_type read_next_row( vpf_table_type table ) VPFREAD.C
* position_type ll_first( linked_list_type list ) LINKLIST.C
* int ll_end( position_type position ) LINKLIST.C
* void ll_element( position_type position, void *element ) LINKLIST.C
* void *get_table_element( rspf_int32 field_number,
* row_type row,
* vpf_table_type table,
* void *value,
* rspf_int32 *count ) VPFREAD.C
* void display_message( char *info ) USER DEFINED
* static int strcompare( char *val1, char *val2, char op ) VPFQUERY.C
* static int icompare( rspf_int32 val1, rspf_int32 val2, char op ) VPFQUERY.C
* static int fcompare( float val1, float val2, char op ) VPFQUERY.C
* void ll_reset( linked_list_type list ) LINKLIST.C
void free_row( row_type row, vpf_table_type table) VPFREAD.C
*E
*************************************************************************/
set_type query_table( char *expression, vpf_table_type table )
{
row_type row;
position_type pos;
expr_type expr;
register rspf_int32 i;
int boolval=FALSE, booltemp=0, join = OR;
rspf_int32 lval, lval2, count;
float fval, fval2;
char tval, tval2, *tptr;
linked_list_type exprlist;
set_type select_set;
select_set = set_init(table.nrows+1);
if (strcmp(expression,"*")==0) {
set_on(select_set);
return select_set;
}
exprlist = parse_expression( expression, table );
if (!exprlist) return select_set;
if (table.storage == DISK)
fseek( table.fp, index_pos(1,table), SEEK_SET );
for (i=1;i<=table.nrows;i++) {
if (table.storage == DISK)
row = read_next_row(table);
else
row = get_row( i, table );
pos = ll_first(exprlist);
while (!ll_end(pos)) {
ll_element( pos, &expr );
switch (table.header[expr.field].type) {
case 'I':
if (table.header[expr.field].count == 1) {
get_table_element( expr.field, row, table, &lval, &count );
lval2 = atol(expr.value);
booltemp = icompare( lval, lval2, expr.op );
} else {
display_message(
"Selection may not be performed upon arrays");
i=table.nrows+1;
}
break;
case 'T':
if (table.header[expr.field].count == 1) {
get_table_element( expr.field, row, table, &tval, &count );
tval2 = expr.value[0];
booltemp = comp( &tval, &tval2, sizeof(tval), expr.op );
} else {
tptr = (char *)get_table_element( expr.field, row, table,
NULL, &count );
booltemp = strcompare( tptr, expr.value, expr.op );
free(tptr);
}
break;
case 'F':
if (table.header[expr.field].count == 1) {
get_table_element( expr.field, row, table, &fval, &count );
if (!is_vpf_null_float(fval)) {
fval2 = (float)atof(expr.value);
booltemp = fcompare( fval, fval2, expr.op );
} else booltemp = FALSE;
} else {
display_message(
"Selection may not be performed upon arrays");
i=table.nrows+3;
}
break;
default:
display_message("Field type not supported for query");
i=table.nrows+3;
break;
}
if (i>table.nrows) break;
if (join==OR)
boolval = boolval || booltemp;
else
boolval = boolval && booltemp;
join = expr.join;
pos = pos->next;
}
free_row( row, table );
if (boolval) set_insert(i,select_set);
boolval = FALSE;
join = OR;
if (i==table.nrows+3) break;
}
ll_reset(exprlist);
return select_set;
}
/*************************************************************************
*
*N parse_expression
*
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* This function returns a list of selection expression clause
* structures. This list forms the internal structure of the query
* expression.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Parameters:
*A
* expression <input>==(char *) selection expression string.
* table <input>==(vpf_table_type) VPF table structure.
* return <output>==(linked_list_type) list of expression clauses.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels May 1991 DOS Turbo C
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* External Variables:
*X
* None
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Functions Called:
*F
* char *get_token( char *expression, char *token, int *token_type,
* int *token_value) VPFQUERY.C
* void display_message( char *input) USER DEFINED
* linked_list_type ll_init() LINKLIST.C
* void ll_reset( linked_list_type list ) LINKLIST.C
* void ll_insert( void *element, unsigned size,
* position_type position ) LINKLIST.C
*E
*************************************************************************/
static linked_list_type parse_expression( char *expression, vpf_table_type table )
{
linked_list_type exprlist;
position_type pos;
expr_type expr;
int i, token_type, token_value;
char token[260];
exprlist = ll_init();
pos = exprlist;
/* Set up static globals */
nfields = table.nfields;
fieldname = (char **)memalloc( (nfields+2) * sizeof(char *) );
fieldcol = (int *)memalloc( (nfields+2) * sizeof(int) );
for (i=0;i<table.nfields;i++) {
fieldname[i] = (char *)memalloc(40*sizeof(char));
strcpy(fieldname[i], table.header[i].name);
fieldcol[i] = i;
}
/*****/
expression = get_token( expression, token, &token_type, &token_value );
while (token_type != FINISHED) {
if (token_type != FIELD) {
display_message("Expression syntax error -- Invalid field name");
ll_reset(exprlist);
exprlist = NULL;
break;
}
expr.field = token_value;
expression = get_token( expression, token, &token_type, &token_value );
if (token_type != LOP) {
display_message("Expression syntax error");
ll_reset(exprlist);
exprlist = NULL;
break;
}
expr.op = (char)token_value;
expression = get_token( expression, token, &token_type, &token_value );
if (token_type == ERROR) {
display_message("Expression syntax error");
ll_reset(exprlist);
exprlist = NULL;
break;
}
strcpy(expr.value,token);
expression = get_token( expression, token, &token_type, &token_value );
if (token_type == JOIN) {
expr.join = (char)token_value;
ll_insert( &expr, sizeof(expr), pos );
pos = pos->next;
expression = get_token( expression, token, &token_type,
&token_value );
} else if (token_type == FINISHED) {
expr.join = '\0';
ll_insert( &expr, sizeof(expr), pos );
} else {
display_message("Expression syntax error");
ll_reset(exprlist);
exprlist = NULL;
break;
}
}
for (i=0;i<nfields;i++) free(fieldname[i]);
free(fieldname);
free(fieldcol);
return exprlist;
}
/**************************************************************************
*
*N fc_row_numbers
*
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* Given the starting row of a feature class relationship, return the
* list of row numbers of the table at the end of the feature class
* relate chain.
* If your relate goes from the feature to the primitive, this will
* return the primitive ids for the given feature row.
* If your relate goes from the primitive to the feature, this will
* return the feature ids of the given primitive row.
*
* Currently only supports relates on 'I' or 'K' fields.
*E
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels DOS Turbo C
*E
*************************************************************************/
linked_list_type fc_row_numbers( row_type row,
fcrel_type fcrel,
long int tile,
ThematicIndex *idx )
{
row_type relrow;
long int count;
long int n, rownum, keyval;
id_triplet_type triplet_keyval;
int KEY1_, KEY_;
position_type p, prow, pkey;
vpf_relate_struct rcell;
linked_list_type rowlist, keylist, templist;
p = ll_first(fcrel.relate_list);
ll_element(p,&rcell);
KEY1_ = table_pos(rcell.key1,fcrel.table[0]);
get_table_element(0,row,fcrel.table[0],&rownum,&count);
if (KEY1_ == 0) { /* "ID" */
keyval = rownum;
} else {
switch (fcrel.table[0].header[KEY1_].type) {
case 'I':
get_table_element(KEY1_,row,fcrel.table[0],&keyval,&count);
break;
case 'K':
get_table_element(KEY1_,row,fcrel.table[0],&triplet_keyval,
&count);
keyval = triplet_keyval.exid;
if (tile != triplet_keyval.tile) {
keyval = -2;
}
break;
default:
keyval = 0;
break;
}
}
keylist = ll_init();
ll_insert(&keyval,sizeof(keyval),keylist);
n = 0;
p = ll_first(fcrel.relate_list);
for (n=1;n<(fcrel.nchain-1);n++) {
/* Relate through Join table(s) */
rowlist = ll_init();
pkey = ll_first(keylist);
while (!ll_end(pkey)) {
ll_element(pkey,&keyval);
templist = related_rows(&keyval,fcrel.table[n],rcell.key2,0,NULL);
prow = ll_first(templist);
while (!ll_end(prow)) {
ll_element(prow,&rownum);
if (!ll_locate(&rownum,rowlist))
ll_insert(&rownum,sizeof(rownum),ll_last(rowlist));
prow = ll_next(prow);
}
ll_reset(templist);
pkey = ll_next(pkey);
}
ll_reset(keylist);
p = ll_next(p);
ll_element(p,&rcell);
KEY_ = table_pos(rcell.key1,fcrel.table[n]);
keylist = ll_init();
prow = ll_first(rowlist);
while (!ll_end(prow)) {
ll_element(prow,&rownum);
relrow = get_row(rownum,fcrel.table[n]);
if (KEY_ == 0) { /* "ID" */
keyval = rownum;
} else {
switch (fcrel.table[n].header[KEY_].type) {
case 'I':
get_table_element(KEY_,relrow,fcrel.table[n],&keyval,&count);
break;
case 'K':
get_table_element(KEY_,relrow,fcrel.table[n],&triplet_keyval,
&count);
keyval = triplet_keyval.exid;
if (tile != triplet_keyval.tile) {
keyval = -2;
}
break;
default:
keyval = 0;
break;
}
}
if (keyval > 0)
ll_insert(&keyval,sizeof(keyval),ll_last(keylist));
prow = ll_next(prow);
free_row(relrow,fcrel.table[n]);
}
ll_reset(rowlist);
}
rowlist = ll_init();
p = ll_first(keylist);
while (!ll_end(p)) {
ll_element(p,&keyval);
templist = related_rows(&keyval,fcrel.table[n],rcell.key2,0,idx);
prow = ll_first(templist);
while (!ll_end(prow)) {
ll_element(prow,&rownum);
if (!ll_locate(&rownum,rowlist))
ll_insert(&rownum,sizeof(rownum),ll_last(rowlist));
prow = ll_next(prow);
}
ll_reset(templist);
p = ll_next(p);
}
ll_reset(keylist);
return rowlist;
}
/**************************************************************************
*
*N select_feature_class_relate
*
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* Set up the relationships between features and primitives or between
* primitives and features (one way only) for a specified feature class.
*E
*:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels DOS Turbo C
*E
*************************************************************************/
fcrel_type select_feature_class_relate( int fcnum,
library_type *library,
char *start_table,
char *end_table )
{
int storage, cov;
vpf_table_type fcs;
long int i;
char path[255], covpath[255];
position_type p;
vpf_relate_struct rcell;
fcrel_type fcrel;
fcrel.nchain = 0;
fcrel.table = NULL;
fcrel.relate_list = NULL;
cov = library->fc[fcnum].coverage;
strcpy(covpath,library->cover[cov].path);
rightjust(covpath);
sprintf( path, "%sfcs", covpath );
/* Feature Class Schema table */
fcs = vpf_open_table( path, disk, "rb", NULL );
fcrel.relate_list = fcs_relate_list( library->fc[fcnum].name,
start_table,end_table,
fcs );
if (ll_empty(fcrel.relate_list)) {
ll_reset(fcrel.relate_list);
displaymessage("ERROR in feature class relationship!",
start_table,end_table,NULL);
return fcrel;
}
/* Find the number of tables in the relate chain */
p = ll_first(fcrel.relate_list);
fcrel.nchain = 0;
while (!ll_end(p)) {
fcrel.nchain++;
p = ll_next(p);
}
/* Allow for last table2 */
fcrel.nchain++;
fcrel.table = (vpf_table_type *)
vpfmalloc((fcrel.nchain+1)*
sizeof(vpf_table_type));
for (i=0;i<fcrel.nchain+1;i++)
vpf_nullify_table( &(fcrel.table[i]) );
p = ll_first(fcrel.relate_list);
for (i=0;i<fcrel.nchain-1;i++) {
ll_element(p,&rcell);
/** Can't open primitive table - may be several under tile **/
/** directories. Open all others **/
if (!is_primitive(rcell.table1)) {
sprintf(path,"%s%s",covpath,rcell.table1);
if (is_join(rcell.table1))
storage = ram;
else
storage = disk;
fcrel.table[i] = vpf_open_table(path,(storage_type)storage,"rb",NULL);
}
if (!ll_end(p)) p = ll_next(p);
}
/* End of relate chain */
i = fcrel.nchain-1;
if (!is_primitive(rcell.table2)) {
sprintf(path,"%s%s",covpath,rcell.table2);
storage = disk;
fcrel.table[i] = vpf_open_table(path,(storage_type)storage,"rb",NULL);
}
vpf_close_table( &fcs );
return fcrel;
}
/*************************************************************************
*
*N get_selected_tile_primitives
*
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Purpose:
*P
* This function determines all of the selected primitive rows from
* the selected features of a given tile.
*
* This function expects a feature class relationship structure that
* has been successfully created with select_feature_class_relate()
* from the feature table to the primitive. The primitive table in
* the feature class relate structure must have been successfully
* opened for the given tile.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* Parameters:
*A
* library <input>==(library_type *) VPF library structure.
* fcnum <input>==(int) feature class number of the feature table.
* fcrel <input>==(fcrel_type) feature class relate structure.
* feature_rows <input>==(set_type) set of selected features.
* mapenv <input>==(map_environment_type *) map environment.
* tile <input>==(rspf_int32) tile number.
* tiledir <input>==(char *) path to the tile directory.
* status <output>==(int *) status of the function:
* 1 if completed, 0 if user escape.
* return <output>==(set_type) set of primitives for the features
* in the corresponding tile.
*E
*::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
*
* History:
*H
* Barry Michaels May 1991 DOS Turbo C
*E
*************************************************************************/
set_type get_selected_tile_primitives( library_type *library,
int fcnum,
fcrel_type fcrel,
set_type feature_rows,
map_environment_type *mapenv,
rspf_int32 tile,
char *tiledir,
int *status )
{
int cov, degree;
int feature, prim;
row_type row;
char *spxname[] = {"","esi","fsi","tsi","nsi","csi"};
char *brname[] = {"","ebr","fbr","tbr","nbr","cbr"};
set_type primitive_rows, tile_features;
set_type primitives;
rspf_int32 prim_rownum;
register rspf_int32 i,pclass, start,end;
char path[255], covpath[255];
linked_list_type primlist;
position_type p;
vpf_relate_struct rcell;
ThematicIndex idx;
feature = 0;
prim = fcrel.nchain-1;
/* Assume that fcrel.table[prim] has been opened */
primitives.size = 0;
primitives.buf = NULL;
cov = library->fc[fcnum].coverage;
strcpy( covpath, library->cover[cov].path );
p = ll_previous(ll_last(fcrel.relate_list),fcrel.relate_list);
ll_element(p,&rcell);
degree = rcell.degree;
for (pclass=EDGE;pclass<=CONNECTED_NODE;pclass++) {
if ((pclass != library->fc[fcnum].primclass) &&
(library->fc[fcnum].primclass != COMPLEX_FEATURE)) continue;
primitives = set_init(fcrel.table[prim].nrows+1);
/* Get the set of primitive rows within the map extent */
/* Look for the spatial index file to weed out primitives in the */
/* given tile but outside of the viewing area. If a projection */
/* other than plate-carree (rectangular) is on, or if the extent */
/* crosses the meridian, the quick check is no longer valid. */
primitive_rows.size = 0;
if (mapenv->projection == PLATE_CARREE &&
mapenv->mapextent.x1 < mapenv->mapextent.x2) {
sprintf(path,"%s%s%s",covpath,tiledir,spxname[pclass]);
/* 20 (below) is a fairly arbitrary cutoff of the number of */
/* primitives that make a spatial index search worth while. */
if ((access(path,0)==0)&&(fcrel.table[prim].nrows > 20)) {
primitive_rows = spatial_index_search(path,
mapenv->mapextent.x1,mapenv->mapextent.y1,
mapenv->mapextent.x2,mapenv->mapextent.y2);
} else {
/* Next best thing - bounding rectangle table */
sprintf(path,"%s%s%s",covpath,tiledir,brname[pclass]);
if ((access(path,0)==0)&&(fcrel.table[prim].nrows > 20)) {
primitive_rows = bounding_select(path,mapenv->mapextent,
library->dec_degrees);
}
}
}
if (primitive_rows.size == 0) {
/* Search through all the primitives */
primitive_rows=set_init(fcrel.table[prim].nrows+1);
set_on(primitive_rows);
}
if (strcmp(tiledir,"") != 0) {
tile_thematic_index_name(fcrel.table[feature], path);
if ((strcmp(path,"")!=0) && (access(path,4)==0)) {
/* Tile thematic index for feature table present, */
tile_features = read_thematic_index( path, (char *)&tile );
} else {
tile_features = set_init(fcrel.table[feature].nrows+1);
set_on(tile_features);
}
} else {
tile_features = set_init(fcrel.table[feature].nrows+1);
set_on(tile_features);
}
set_delete(0,tile_features);
idx.fp = NULL;
i = table_pos(rcell.key2,fcrel.table[prim]);
if (i >= 0) {
if (fcrel.table[prim].header[i].tdx) {
sprintf(path,"%s%s",fcrel.table[prim].path,
fcrel.table[prim].header[i].tdx);
if (access(path,0)==0)
idx = open_thematic_index(path);
}
if (fcrel.table[prim].header[i].keytype == 'U') degree = R_ONE;
if (fcrel.table[prim].header[i].keytype == 'N') degree = R_MANY;
if (fcrel.table[prim].header[i].keytype == 'P') degree = R_ONE;
}
start = set_min(tile_features);
end = set_max(tile_features);
/* It turns out to be MUCH faster off of a CD-ROM to */
/* read each row and discard unwanted ones than to */
/* forward seek past them. It's about the same off */
/* of a hard disk. */
fseek(fcrel.table[feature].fp,index_pos(start,fcrel.table[feature]),
SEEK_SET);
for (i=start;i<=end;i++) {
row = read_next_row(fcrel.table[feature]);
if (!set_member( i, feature_rows )) {
free_row(row,fcrel.table[feature]);
continue;
}
if (!set_member( i, tile_features )) {
free_row(row,fcrel.table[feature]);
continue;
}
if (degree == R_ONE) {
prim_rownum = fc_row_number( row, fcrel, tile );
primlist = NULL;
p = NULL;
} else {
primlist = fc_row_numbers( row, fcrel, tile, &idx );
}
free_row( row, fcrel.table[feature] );
if (!primlist) {
if ((prim_rownum<1)||(prim_rownum>fcrel.table[prim].nrows))
continue;
if (set_member( prim_rownum, primitive_rows )) {
set_insert(prim_rownum,primitives);
}
} else {
p = ll_first(primlist);
while (!ll_end(p)) {
ll_element(p,&prim_rownum);
if ((prim_rownum<1)||
(prim_rownum>fcrel.table[prim].nrows))
continue;
if (set_member( prim_rownum, primitive_rows )) {
set_insert(prim_rownum,primitives);
}
p = ll_next(p);
}
}
if (primlist) ll_reset(primlist);
if (kbhit()) {
if (getch()==27) {
*status = 0;
break;
}
}
}
set_nuke(&primitive_rows);
set_nuke(&tile_features);
if (idx.fp) close_thematic_index(&idx);
*status = 1;
if (kbhit()) {
if (getch()==27) {
*status = 0;
break;
}
}
}
return primitives;
}
static void read_cf(void)
{
char tmp[0x100], lv[0x20], rv[0x20];
struct conf_item *ci = NULL;
FILE *fd;
size_t len;
int lnum, found, v_int;
char *lp, *conv_err;
bool file_needs_update = false;
char *cfname = get_confname();
if (access(cfname, F_OK) != 0)
goto done;
fd = fopen(cfname, "r");
if (fd == NULL)
err_sys("can not read configuration file '%s'", cfname);
for (lnum = 1; fgets(tmp, sizeof(tmp), fd); lnum++) {
lp = tmp + strspn(tmp, " ");
if (*lp == '#' || *lp == '\n')
continue;
len = strcspn(lp, " =");
if (len > sizeof(lv))
err_quit("parse error in %s, line %d: identifier too long",
cfname, lnum);
strncpy(lv, lp, len);
lv[len] = '\0';
lp += len;
ll_reset(conf_items);
for (found = 0; !found && (ci = ll_getall(conf_items)); )
found = (ci->type != t_sep && ci->type != t_func &&
strcasecmp(ci->cfname, lv) == 0);
if (!found) {
err_msg("%s, line %d: ignoring unknown identifier '%s'",
cfname, lnum, lv);
file_needs_update = true;
continue;
}
lp += strspn(lp, " ");
if (*lp++ != '=')
err_quit("parse error in %s, line %d: missing '=' operator in assignment",
cfname, lnum);
lp += strspn(lp, " ");
len = strcspn(lp, " \n");
if (len > sizeof(rv))
err_quit("parse error in %s, line %d: argument too long", cfname, lnum);
else if (*lp == '\n')
err_quit("parse error in %s, line %d: argument expected", cfname, lnum);
strncpy(rv, lp, len);
rv[len] = '\0';
switch (ci->type) {
case t_int:
v_int = strtol(rv, &conv_err, 10);
if (*conv_err != '\0') {
err_quit("parse error in %s, line %d: integer value expected, '%s' found instead",
cfname, lnum, rv);
} else if (v_int > ci->max) {
err_msg("%s, line %d: value exceeds maximum of %d - using maximum",
cfname, lnum, (int)ci->max);
*ci->v.i = ci->max;
file_needs_update = true;
} else if (v_int < ci->min) {
err_msg("%s, line %d: value is below minimum of %d - using minimum",
cfname, lnum, (int)ci->min);
*ci->v.i = ci->min;
file_needs_update = true;
} else {
*ci->v.i = v_int;
}
break;
case t_list:
assert(ci->list != NULL);
if (!argv_count(ci->list))
err_quit("no usable %s candidates available for '%s'", ci->name, rv);
v_int = argv_find(ci->list, rv);
if (v_int < 0) {
err_msg("%s, line %d: '%s = %s' is not valid - using defaults",
cfname, lnum, lv, rv);
file_needs_update = true;
} else {
*ci->v.i = v_int;
}
case t_sep:
case t_func:
break;
}
}
fclose(fd);
done:
free(cfname);
if (file_needs_update) {
write_cf();
}
}
static void write_cf(void)
{
char tmp[0x100], rv[0x40];
struct conf_item *ci = NULL;
char *lp, *cp;
int add, i;
char *cfname = get_confname();
int cfld = ll_create();
FILE *fd = fopen(cfname, "w");
if (fd == NULL)
err_sys("failed to open configuration file '%s'", cfname);
for (ll_reset(conf_items); (ci = ll_getall(conf_items)); ) {
if (ci->type != t_sep && ci->type != t_func &&
(!ci->dep || (ci->dep && *ci->dep))) {
switch (ci->type) {
case t_int:
sprintf(rv, "%d", *ci->v.i);
break;
case t_list:
if (!argv_count(ci->list))
continue;
sprintf(rv, "%s", ci->list[*ci->v.i]);
str_tolower(rv);
break;
case t_sep:
case t_func:
break;
}
add = 1;
for (i = 0; i < ll_size(cfld); i++) {
lp = ll_get(cfld, i);
cp = lp += strspn(lp, " ");
if (!strncasecmp(cp, ci->cfname, strcspn(cp, " ="))
&& strlen(ci->cfname) == strcspn(cp, " =")) {
add = 0;
cp += strcspn(cp, "=") + 1;
cp += strspn(cp, " ");
strncpy(tmp, cp, strcspn(cp, " #\n"));
if (strcasecmp(tmp, rv)) {
strncpy(tmp, lp, strcspn(lp, " ="));
tmp[strcspn(lp, " =")] = '\0';
strcat(tmp, " = ");
strcat(tmp, rv);
strcat(tmp, "\n");
ll_replace(cfld, i, "s", tmp);
}
}
}
if (add) {
strcpy(tmp, ci->cfname);
strcat(tmp, " = ");
strcat(tmp, rv);
strcat(tmp, "\n");
ll_push(cfld, "s", tmp);
}
}
}
for (ll_reset(cfld); (lp = ll_getall(cfld)); )
fputs(lp, fd);
fclose(fd);
ll_destroy(cfld);
free(cfname);
}