In src/output/options.c we have:
/* Creates and returns a new struct driver_option for output driver DRIVER
(which is needed only to the extent that its name will be used in error
messages). The option named NAME is extracted from OPTIONS. DEFAULT_VALUE
is the default value of the option, used if the given option was not
supplied or was invalid. */
struct driver_option *
driver_option_get (struct output_driver *driver, struct string_map *options,
const char *name, const char *default_value)
{
struct driver_option *option;
char *value;
value = string_map_find_and_delete (options, name);
option = driver_option_create (output_driver_get_name (driver), name, value,
default_value);
free (value);
return option;
}
Why does it use string_map_find_and_delete ? Why not simply string_map_find?
Why does it need to delete the item from the string map?
J'
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