Datatype Conversions: Difference between revisions
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{{flink|monster|to_monster|string|desc=Converts a string to a monster.}} | {{flink|monster|to_monster|string|desc=Converts a string to a monster.}} | ||
{{flink|skill|to_skill|any|desc=Converts an int, string or effect to a skill.}} | {{flink|skill|to_skill|any|desc=Converts an int, string or effect to a skill.}} | ||
{{flink|slot|to_slot| | {{flink|slot|to_slot|item|desc=Converts an item to a slot.}} | ||
{{flink|string|to_string|any|desc=Converts any datatype to a string.}} | {{flink|string|to_string|any|desc=Converts any datatype to a string.}} | ||
{{flink|string|to_plural|item|desc=Converts an item into the string value of its plural.}} | {{flink|string|to_plural|item|desc=Converts an item into the string value of its plural.}} | ||
== Historical note == | == Historical note == | ||
ASH did not originally support polymorphic functions, so it was not possible to have (for example) a single '''to_string(any)''' function that worked on any datatype. Instead, there were separate '''int_to_string(int)''', '''item_to_string(item)''', etc. functions. You may see these used in older scripts, and in fact they still work. The rule is that if a function name is not otherwise defined anywhere, and it ends with one of the modern type conversion function names shown above, it is treated as a call to the modern function. No check is made to verify that the chopped-off portion of the old function name actually matches the type of its parameter. | ASH did not originally support polymorphic functions, so it was not possible to have (for example) a single '''to_string(any)''' function that worked on any datatype. Instead, there were separate '''int_to_string(int)''', '''item_to_string(item)''', etc. functions. You may see these used in older scripts, and in fact they still work. The rule is that if a function name is not otherwise defined anywhere, and it ends with one of the modern type conversion function names shown above, it is treated as a call to the modern function. No check is made to verify that the chopped-off portion of the old function name actually matches the type of its parameter. |
Revision as of 14:34, 12 March 2010
These functions will convert one type of data to another.
boolean to_boolean( any )
class to_class( string )
effect to_effect( any )
familiar to_familiar( any )
float to_float( any )
int to_int( any )
item to_item( any )
location to_location( any )
monster to_monster( string )
skill to_skill( any )
slot to_slot( item )
string to_string( any )
string to_plural( item )
Historical note
ASH did not originally support polymorphic functions, so it was not possible to have (for example) a single to_string(any) function that worked on any datatype. Instead, there were separate int_to_string(int), item_to_string(item), etc. functions. You may see these used in older scripts, and in fact they still work. The rule is that if a function name is not otherwise defined anywhere, and it ends with one of the modern type conversion function names shown above, it is treated as a call to the modern function. No check is made to verify that the chopped-off portion of the old function name actually matches the type of its parameter.