weerox / svelang Goto Github PK

Make sure that, when possible, we use strncpy instead of strcpy, which hopefully will provide some speed optimization when compiling.

Currently the line y + 2 will be parsed as an expression consisting of only the variable y, then a "standalone" variable + and a number 2. When an expression has started it shouldn't be allowed to finish before the end of the line. Also, it would be good if this type of error could be detected and the user be informed that they probably meant to spell out plus.

This can be done in interpret_variable, since symbol_table_get will return NULL if it can't find a symbol with that name (e.g. it hasn't been initialized yet).

Print an error message and return 1. For this to work correctly, all interpret_ functions has to check the return value of other interpret_ functions and return 1 on failure.

This project is probably going to grow quite fast. To easy compilation both during development and for users it would be nice to be able to compile using configure and make.

The SYNTAX file contains the ABNF rules for svelang. There are some problems with it though, for example, it isn't specified where spaces are allowed.

Also, when specifying strings in ABNF they are automatically case-insensitive. Currently the interpreter isn't making case-insensitive checks on tokens.
This can either be solved by changing the ABNF strings into byte values or by making the interpreter case-insensitive.

This is svelang, of course it should be in Swedish!

When the size of a symbol table is larger than its capacity it is guaranteed that two symbols shares the same hash, so double the size of the table, rehash the symbols and put them in the new table.