Difference between revisions of "Datatype Conversions"
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| − | + | <p>These functions will convert one type of data to another.</p> | |
| − | + | {{flink|boolean|to_boolean|any|desc=Converts any datatype to a boolean.}} | |
| − | These functions will convert | + | {{flink|class|to_class|string|desc=Converts a string to a class.}} |
| − | + | {{flink|effect|to_effect|any|desc=Converts an int, string or skill to an effect.}} | |
| − | <p> | + | {{flink|familiar|to_familiar|any|desc=Converts an int or a string to a familiar.}} |
| − | Converts | + | {{flink|float|to_float|any|desc=Converts from any datatype to a float.}} |
| − | + | {{flink|int|to_int|any|desc=Converts from any datatype to an int.}} | |
| − | + | {{flink|item|to_item|any|desc=Converts an int or a string (or both?) to an item.}} | |
| − | + | {{flink|location|to_location|any|desc=Converts an int or a string to a location.}} | |
| − | Converts | + | {{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|slot|to_slot|any|desc=Converts an item to a slot.}} | |
| − | + | {{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.}} | |
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== 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 13:38, 9 March 2010
These functions will convert one type of data to another.
boolean to_boolean( any )
Converts any datatype to a boolean.
class to_class( string )
Converts a string to a class.
effect to_effect( any )
Converts an int, string or skill to an effect.
familiar to_familiar( any )
Converts an int or a string to a familiar.
float to_float( any )
Converts from any datatype to a float.
int to_int( any )
Converts from any datatype to an int.
item to_item( any )
Converts an int or a string (or both?) to an item.
location to_location( any )
Converts an int or a string to a location.
monster to_monster( string )
Converts a string to a monster.
skill to_skill( any )
Converts an int, string or effect to a skill.
slot to_slot( any )
Converts an item to a slot.
string to_string( any )
Converts any datatype to a string.
string to_plural( item )
Converts an item into the string value of its plural.
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.