named_parameters.c

#include<stdlib.h>
#include<stdio.h>

typedef struct state_t {
    int current_line;
    int heading_level;
    token* previous_token;
} state;

state* state_with(state* s) /* just for readability when invoking */
{
    return s;
}

state* current_line(int l, state* s)
{
    s->current_line = l;
    return s;
}

/* ... */

int main(int argc, char* argv[])
{
    state* s = state_with(
               current_line(1,
               heading_level(0,
               previous_token(NULL,
               (state*)malloc(sizeof(state))))));

    return EXIT_SUCCESS;
}