BLZ v2.6

Changelog for 2.6. A version with pictures is available on the language site

Version 2.6

• Add blz -p list command line option to list loaded packages
• Add exit(exit_code) to specify an exit code
• Add raw_print(char) to print bytes
• Changes to how packages are loaded. First try BPM packages, then BLZPACKES, then installation directory
• Complete rewrite of block parsing
• Improve parsing error messages
• Improve runtime error messages
• Functions now return last line evaulated by default
• Allow all Array primitive methods to support !
• Fix bug in ceil that gave incorrect results
• Allow for overriding of < and == in constructors, other methods are inferred from these
• The user-defined show method will be called on objects when attempting to cast them to strings
• Add split_on_token to strings
• Add to_json to strings, numbers, booleans, arrays, hashes and nil
• Add nil? to objects
• Add size and sample to arrays
• Try Catch Blocks are now supported
• Add {arguments} environment variable
• Add read, read_line, read_all, and write to resources (files and network connections)
• Add lambda using (arg1, arg2, arg3 -> expression) syntax
• Add proper support for escape characters \# and \" in strings
• Add string replace method to replace characters
• Add throw builtin to throw custom values as errors
• Add lexer to catch more syntax errors and correctly parse everything

Test Mode

• blz -t source.blz another.blz runs all methods in the given sources that start with test

REPL

• Supports blocks (for, while, if, methods) but not constructors

Test Package

• Add expect, a testing framework
• Add Expect::is, Expect::is_not, Expect::is_less_than, Expect::is_greater_than, Expect::is_nil, Expect::is_false, Expect::is_true (and example is expect(2 + 2).is(4))

JSON Package

• Add parse_json(json_string) method that will parse json or throw a JSONError if the json is invalid.

CSV Package

• Add parse_csv(string) method that will parse csv

Math Package

• Add trig functions sin, cos, tan, cot, sine, cosine, tangent, cotangent

FileSystem Package

• open(path, mode) allows for opening files
• open_http(path), open_https(path), open_url(path) allow for opening network resources

Lists Package

• Add LinkedList constructor
• Add range(start_or_end, end) method to get easily get all integers in a range

Project Structure / Organization

• Use maven to build
• Add unit tests for many ASTNodes
• Move parse classes to their own package
• Clean up old unused code
• Restructure Tests folder
• Allow for error message testing

Other

• Function names can now have : in the middle of them (please don't use this in production)
• Add EXPERIMENTAL async builtin (please don't use this in production)