commands.c

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#include "commands.h"
#include "buffer.h"
#include "stralloc.h"
#include "str.h"
#include "case.h"
 
static stralloc cmd = {0};
 
int commands(buffer *b,struct commands *c)
{
  int i;
  char *arg;
 
  for (;;) {
    if (!stralloc_copys(&cmd,"")) return -1;
 
    for (;;) {
      if (!stralloc_readyplus(&cmd,1)) return -1;
      i = buffer_get(b,cmd.s + cmd.len,1);
      if (i != 1) return i;
      if (cmd.s[cmd.len] == '\n') break;
      if (!cmd.s[cmd.len]) cmd.s[cmd.len] = '\n';
      ++cmd.len;
    }
 
    if (cmd.len > 0) 
      if (cmd.s[cmd.len - 1] == '\r') --cmd.len;
 
    cmd.s[cmd.len] = 0;
 
    i = str_chr(cmd.s,' ');
    arg = cmd.s + i;
    while (*arg == ' ') ++arg;
    cmd.s[i] = 0;
 
    for (i = 0; c[i].verb; ++i) 
     if (case_equals(c[i].verb,cmd.s)) break;
    c[i].action(arg);
    if (c[i].flush) c[i].flush();
  }
}