Author: Sean Lynch <email@example.com>
Date: Thu, 26 Aug 2010 11:54:57 -0700
Add LICENSE and README
|A||LICENSE|| | ||20||++++++++++++++++++++|
|A||README.markdown|| | ||94||+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++|
2 files changed, 114 insertions(+), 0 deletions(-)
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2010 Sean Richard Lynch
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
\ No newline at end of file
diff --git a/README.markdown b/README.markdown
@@ -0,0 +1,94 @@
+Sean's Itty Bitty Language
+Itty is a stack-based language with single-character words, inspired
+primarily by False and Mouse.
+hello.itty is the classic hello world.
+pi.itty is an unbounded pi spigot; it will print the digits of pi
+until the cows come home. IMHO this is a much better hello world for
+this language; it's actually why I developed Itty in the first place.
+Currently there are 26 global variables represented by the ASCII
+capital letters, and 26 local variables represented by the ASCII
+lowercase letters. This will change: I intend to implement nested
+scope and allow all 52 variables to exist in any scope.
+Variables are set with :<variable letter>, fetched by typing just the
+letter. Functions stored in variables will be evaluated rather than
+being put on the stack; to actually put the function on the stack use
+;<variable> (not yet implemented).
+To set a bunch of variables at once, enclose the names in single
+quotes, for example: 'abcd' will pop d, then c, then b, then a. This
+makes it a lot easier to read and write functions that take multiple
+arguments, since it's traditional to put arguments on the stack in
+Blocks are created by enclosing code in square brackets
+([ and ]). Call a block unconditionally with ! or conditionally with
+?. ? Takes three arguments: a boolean (0 for false or nonzero number
+for true), a true case block, and a false case block. To leave one out
+just use an empty block. To execute a tail call, make sure the ? or !
+comes right before a ]; whitespace will break the tail call detection
+code (this is a bug).
+There is no input right now. Suggestions welcome.
+Comma (,) will print the ASCII character corresponding to the number
+on the top of the stack. Print a newline with 10, or a tab with 8,. To
+print a string, enclose it in double quotes. Strings may eventually be
+first class, so this may change. There is no escape character; to
+print double quotes use 34,.
+Period (.) will print the object on top of the stack, with no newline.
+Numbers are represented by sequences of decimal digits. Only positive
+integer constants can be represented. To put a negative number on the
+stack, subtract from 0 or use the unary negation (_) operator.
+Only integers are supported; they are implemented as bignums using GNU
+MP. Addition (+), subtraction (-), multiplication (*), floor division
+(/), and modulo (%), and unary negation (_) are supported. Other
+popular math functions that would be too slow to implement in Itty
+will eventually go into a math module once I have modules.
+Nonzero represents true; zero represents false. Operations are unary
+not (~), binary and (&), and binary or (|). I may add xor in the
+future using ^, which is currently the trace operation, and move trace
+to a debug module once I've implemented namespaces.
+There is currently only trace (^). Eventually debugging functions will
+get their own module.