tablescript Goto Github PK
Name: Tablescript
Type: Organization
Blog: https://tablescript.org
Name: Tablescript
Type: Organization
Blog: https://tablescript.org
TableScript Alpha 5 This is the fifth release of TableScript, and I think we're getting close to a beta... Building ======== Do a 'make' to build the interpreter (ts), then run a table: ts tablefile.ts State Of Things =============== Memory management.. The major problem remaining is the memory stuff. It's handled in some places, but neglected in others. The next step will be to standardize it across the code. Plus, I really need to sort out how external add-in modules are going to work. Expect that in the next release. Have a look in the tables directory for some examples of what you can do. Changes ======= Beta 1 - Imports are working. I thought they were before, but discovered the translation wasn't hooked up. When I hooked it up, I realized that there was a minor oversight (read: crash bug), in that imported functions were getting deleted as soon as the import file was finished executing. Anyways, importing should work just fine now - and you can use string formatting to build the import filename (see below). - String formatting has been implemented. I had originally had it as a seperate expression type, but decided it would be more flexible were it added to the string literal interpreter. - The "in" operator is hooked up Alpha 5 - Memory management is finally under control. The only time we should leak is if the script contains circular references. l1 = []; l2 = [l1]; append(l1, l2]); // LEAK! - Tables now support an optional block of statements just prior to the first entry. This code gets run each time the table is rolled (but not on a lookup) immediately before evaluating the rolled table entry. - Tables now support direct lookups. table lookupTable { 1: ("First") 2: ("Second") 3: ("Third") } for i in range(3) { print(lookupTable[i + 1]; } Tables are NOT zero-indexed like lists. Indicies are based entirely on the entry definition. - Line numbers are now tracked nicely. You should get a reasonably intelligent error message with an accurate line number. Alpha 4 - Complex dice descriptors. You can now drop lowest and/or highest dice. Thanks Tom for flushing it out! 4D6L1 => roll 4d6 and drop the 1 lowest die 9D6L3H3 => roll 9d6 and drop the 3 lowest and 3 highest dice - Maps are finally starting to work. Check out tables/elassign.ts to see what you can do with them. - Added the keys() built-in function. It returns a list of keys in the passed map. - Touched up the unary operations (+/-/!). Alpha 3 - Table entries re-vamped. This is what is allowed: table demo { 1: // empty result 2: ("This is an expression.") 3: ("This is a pre-block expression.") {print("This is the block.");} 4: {print("This is the block.");} ("This is a post-block expression.") 5: {print("This is the block.");} } The previous version allowed an arbitrary list of expressions or blocks, but that made the table result kind of complicated. - Built-in functions: print(string); => prints the string range(integer); => returns a list from 0 to integer - 1 len(list); => returns the number of elements in list append(list,value); => appends value to the end of list system(string); => launches the system command string int(value); => cast to integer (not implemented?) float(value); => cast to float (not implemented?) str(value); => cast to string - ARGV is a global list of command line arguments. - ROLL is the actual roll value available in table scope. Alpha 2 - ??? Alpha 1 - ??? To Do (In no particular order) ============================== 1. Implement the "in" operator, as in: i = 6; if(i in [1,2,3,4,5,6]) { print("This prints."); } else { print("This doesn't."); } 2. Sort out how we're going to do user modules. 3. String formatting a la: "this work's like %sin printf" % ["frick"] 4. Somehow work it out so that we can mark a table as unique, making it impossible to roll the same entry twice. 5. Add a stack dump, again for context in error messages. 6. List and string slices a la Python? Not sure if this is going to happen. 1. User Modules This still has not been addressed, although I imagine it won't be long since I'm dropping the win32 support (I'll no longer have to worry about two types of library loading). If anyone has any good ideas, let me know. I have a feeling I'll have to add another keyword like "use" or something just to distinguish between importing another script file and loading a binary library. 2. Interactive Mode I'm not sure this is necessary, but it would be handy for testing various bits. 3. eval Builtin Again, not sure this is necessary. It will involve a change to the parser. I'll either have to change the runFile() to load the whole file into a string so that both runFile() and runString() can parser from a string in memory, or I'll have to have a switch in the lexx input function. I'm not sure which will be faster - probably the first. 4. Rich Errors At present, when something goes wrong you get an error message with a line number. There's no indication to what file that line number applies. I'll need that, plus I have this stack of Frame objects all setup ready to be dumped. I just need to dump them. 5. Unique Table Entries I'm pretty sure this is a reasonable requirement. It would be really nice if we could, when we go to roll, mark any table as unique. I'll look into it... Otherwise, you'll have to mark the table as unique at the definition and force every user to use it the same way. And that's not all that appealing. 6. Ignored Rolls We definitely need to be able to support the "re-roll on this table ignoring rolls above 95". Not sure how to handle this. Enjoy! J
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