/*ARGSUSED1*/
void
special(int key, int x, int y) {
switch(key) {
case GLUT_KEY_UP: levelup(); break;
case GLUT_KEY_DOWN: leveldown(); break;
}
glutPostRedisplay();
}
int config_read_mem(config_t* cfg, char *mem, size_t n)
{
int c, line, next, status;
enum {prekey, key, postkey, preval, val_raw, val_single, val_double, postval, comment} state = prekey;
char *buf, *keybuf, *valbuf, *level;
size_t i;
line = 1;
buf = keybuf = valbuf = level = NULL;
for (i = 0; i <= n; ++i) {
c = *mem++;
if (i == n) c = EOF;
switch (c) {
case ';':
switch (state) {
case prekey:
case val_raw:
case postval:
while (c != '\n' && c != '\r' && c != EOF && i < n)
++i, c = *mem++;
--i, --mem;
break;
default:
config_set_strerror(cfg, "unexpected start of comment");
goto error;
}
break;
case '{':
switch (state) {
case key:
case postkey:
level = levelup(level, buf);
free(buf);
buf = NULL;
state = prekey;
break;
default:
config_set_strerror(cfg, "unexpected level declaration");
goto error;
}
break;
case '}':
switch (state) {
case prekey:
case val_raw:
case postval:
if (level == NULL)
return line;
level = leveldown(level);
break;
default:
config_set_strerror(cfg, "unexpected '}'");
goto error;
}
break;
case '=':
switch (state) {
case key:
case postkey:
keybuf = strdup(buf);
free(buf);
buf = NULL;
state = preval;
break;
default:
config_set_strerror(cfg, "unexpected '='");
goto error;
}
break;
case '"':
switch (state) {
case preval:
state = val_double;
break;
case val_double:
state = postval;
break;
case val_single:
buf = addchar(buf, c);
break;
default:
config_set_strerror(cfg, "unexpected '\"'");
goto error;
}
break;
case '\'':
switch (state) {
case preval:
state = val_single;
break;
case val_single:
state = postval;
break;
case val_double:
buf = addchar(buf, c);
break;
default:
config_set_strerror(cfg,"unexpected \"'\"");
goto error;
}
break;
case EOF:
switch (state) {
case prekey:
case postval:
case val_raw:
break;
default:
line = -1;
config_set_strerror(cfg,"parse error");
goto error;
}
case '\r':
case '\n':
switch (state) {
case prekey:
break;
case val_raw:
case postval:
valbuf = strdup(buf);
free(buf);
buf = NULL;
if (keybuf && valbuf) {
status = config_set_with_level(cfg,level, keybuf, valbuf);
free(keybuf);
free(valbuf);
keybuf = valbuf = NULL;
if (status) {
config_set_strerror(cfg,"out of memory");
line = -1;
goto error;
}
} else {
free (keybuf);
free (valbuf);
config_set_strerror(cfg,"out of memory");
line = -1;
goto error;
}
break;
default:
config_set_strerror(cfg,"unexpected end of file");
goto error;
}
++line;
state = prekey;
break;
case ' ':
case '\t':
switch (state) {
case key:
state = postkey;
break;
case val_raw:
state = postval;
break;
case val_single:
case val_double:
buf = addchar(buf, c);
break;
default:
continue;
}
break;
case '\\':
//next = fgetc(fp);
next = *(mem+1);
switch (state) {
case val_single:
if (next == '\'') {
buf = addchar(buf, '\'');
++mem, ++i;
} else {
buf = addchar(buf, '\\');
}
break;
case val_double:
++mem, ++i;
if (next == 'n') buf = addchar(buf, '\n');
else if (next == 't') buf = addchar(buf, '\t');
else if (next == 'r') buf = addchar(buf, '\r');
else if (next == 'v') buf = addchar(buf, '\v');
else if (next == '\\') buf = addchar(buf, '\\');
else --mem, --i;
break;
default:
break;
}
break;
default:
switch (state) {
case prekey:
state = key;
case key:
buf = addchar(buf, c);
break;
case preval:
state = val_raw;
case val_raw:
case val_single:
case val_double:
buf = addchar(buf, c);
break;
default:
config_set_strerror(cfg,"parse error");
goto error;
}
}
}
if (level != NULL) {
config_set_strerror(cfg,"missing '}'");
goto error;
}
return 0;
error:
free(buf);
free(keybuf);
free(valbuf);
free(level);
return line;
}