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lsys.c
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lsys.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* lsys.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: nbouteme <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2016/01/31 23:52:55 by nbouteme #+# #+# */
/* Updated: 2016/01/31 23:55:47 by nbouteme ### ########.fr */
/* */
/* ************************************************************************** */
#include "lsys.h"
#include <stdlib.h>
#include <math.h>
int expanded_size(t_lsys *self, char *expr)
{
int n;
t_dlist *tmp;
t_lrule *r;
n = 0;
while (*expr)
{
if ((tmp = ftext_lstfind(self->rules, (void*)find_rule, expr)))
{
r = tmp->content;
n += ft_strlen(r->expansion);
}
else
++n;
++expr;
}
return (n);
}
char *expand_into(t_lsys *self, char *input, char *out)
{
int n;
t_dlist *tmp;
t_lrule *r;
n = 0;
while (*input)
{
if ((tmp = ftext_lstfind(self->rules, (void*)find_rule, input)))
{
r = tmp->content;
ft_memcpy(out + n, r->expansion, ft_strlen(r->expansion) + 1);
n += ft_strlen(r->expansion);
}
else
out[n++] = *input;
++input;
}
return (out);
}
char *get_command_string(t_lsys *self, int it)
{
char *result;
char *tmp;
int i;
int nsize;
i = 1;
result = ft_strdup(self->axiom);
while (i++ < it)
{
nsize = expanded_size(self, result);
tmp = result;
result = expand_into(self, result, ft_memalloc(nsize + 1));
free(tmp);
}
return (result);
}