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/* print projection's list of parameters */
#include <projects.h>
#include <stdio.h>
#include <string.h>
#define LINE_LEN 72
static int
pr_list(PJ *P, int not_used) {
paralist *t;
int l, n = 1, flag = 0;
(void)putchar('#');
for (t = P->params; t; t = t->next)
if ((!not_used && t->used) || (not_used && !t->used)) {
l = strlen(t->param) + 1;
if (n + l > LINE_LEN) {
(void)fputs("\n#", stdout);
n = 2;
}
(void)putchar(' ');
if (*(t->param) != '+')
(void)putchar('+');
(void)fputs(t->param, stdout);
n += l;
} else
flag = 1;
if (n > 1)
(void)putchar('\n');
return flag;
}
void /* print link list of projection parameters */
pj_pr_list(PJ *P) {
char const *s;
(void)putchar('#');
for (s = P->descr; *s ; ++s) {
(void)putchar(*s);
if (*s == '\n')
(void)putchar('#');
}
(void)putchar('\n');
if (pr_list(P, 0)) {
(void)fputs("#--- following specified but NOT used\n", stdout);
(void)pr_list(P, 1);
}
}
/************************************************************************/
/* pj_get_def() */
/* */
/* Returns the PROJ.4 command string that would produce this */
/* definition expanded as much as possible. For instance, */
/* +init= calls and +datum= defintions would be expanded. */
/************************************************************************/
char *pj_get_def( PJ *P, int options )
{
paralist *t;
int l;
char *definition;
int def_max = 10;
definition = (char *) pj_malloc(def_max);
definition[0] = '\0';
for (t = P->params; t; t = t->next)
{
/* skip unused parameters ... mostly appended defaults and stuff */
if (!t->used)
continue;
/* grow the resulting string if needed */
l = strlen(t->param) + 1;
if( strlen(definition) + l + 5 > def_max )
{
char *def2;
def_max = def_max * 2 + l + 5;
def2 = (char *) pj_malloc(def_max);
strcpy( def2, definition );
pj_dalloc( definition );
definition = def2;
}
/* append this parameter */
strcat( definition, " +" );
strcat( definition, t->param );
}
return definition;
}
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