Changed a few things

- Bumped to 0.15.0
- Add boot script
- Change variable definition syntax, using a = to distinguish more cleary between identifier and value
- Variables initial values are evaluated on first use instead of at parsing time
- Error on variable redefinition. Means you should make sure to load saves after your scripts.
- Improve string parsing, support for escape codes
- Remove support for number literals with empty decimal part (42. for 42.0) as there's no distinction in Anselme and it conflicts with .function call suffix
- Changed priority of : pair operator
- Add type type, and type annotations to variables and function parameters
- Change Lua function system to use regular Anselme functions
  - Defining a function from Lua is now way simpler and require providing a full Anselme function signature
- Change Anselme function system
  - Dynamic dispatch, based on arity, type annotation and parameter names. Will select the most specific function at runtime.
  - Define way to overload most operators
  - Allow custom type to text formatters
  - Allow assignment to custom functions
  - Index operator ( renamed to ()
  - Functions with parameters each have their own private namespace (scoping ersatz)
  - Internal: "custom"-mode operators now have their own expression AST type instead of cluttering the function system
- Remove static type checker as it is barely useful with new function system. May or may not rewrite one in the future.
- Improve error messages here and there
- Internal: cleaning

test/tests/lazy boolean operators.lua

@@ -0,0 +1,130 @@
+local _={}
+_[57]={}
+_[56]={}
+_[55]={}
+_[54]={}
+_[53]={}
+_[52]={}
+_[51]={}
+_[50]={}
+_[49]={}
+_[48]={}
+_[47]={}
+_[46]={}
+_[45]={}
+_[44]={}
+_[43]={}
+_[42]={}
+_[41]={}
+_[40]={}
+_[39]={}
+_[38]={}
+_[37]={data="0 = b b 0",tags=_[57]}
+_[36]={data="b",tags=_[56]}
+_[35]={data="b",tags=_[55]}
+_[34]={data="1 = a 1",tags=_[54]}
+_[33]={data="a",tags=_[53]}
+_[32]={data="1 = b a 1",tags=_[52]}
+_[31]={data="a",tags=_[51]}
+_[30]={data="b",tags=_[50]}
+_[29]={data="1 = a 1",tags=_[49]}
+_[28]={data="a",tags=_[48]}
+_[27]={data="0 = b 0",tags=_[47]}
+_[26]={data="b",tags=_[46]}
+_[25]={data="1 = a a 1",tags=_[45]}
+_[24]={data="a",tags=_[44]}
+_[23]={data="a",tags=_[43]}
+_[22]={data="0 = b 0",tags=_[42]}
+_[21]={data="b",tags=_[41]}
+_[20]={data="0 = a b 0",tags=_[40]}
+_[19]={data="b",tags=_[39]}
+_[18]={data="a",tags=_[38]}
+_[17]={_[35],_[36],_[37]}
+_[16]={_[33],_[34]}
+_[15]={_[30],_[31],_[32]}
+_[14]={_[28],_[29]}
+_[13]={_[26],_[27]}
+_[12]={_[23],_[24],_[25]}
+_[11]={_[21],_[22]}
+_[10]={_[18],_[19],_[20]}
+_[9]={"return"}
+_[8]={"text",_[17]}
+_[7]={"text",_[16]}
+_[6]={"text",_[15]}
+_[5]={"text",_[14]}
+_[4]={"text",_[13]}
+_[3]={"text",_[12]}
+_[2]={"text",_[11]}
+_[1]={"text",_[10]}
+return {_[1],_[2],_[3],_[4],_[5],_[6],_[7],_[8],_[9]}
+--[[
+{ "text", { {
+      data = "a",
+      tags = {}
+    }, {
+      data = "b",
+      tags = {}
+    }, {
+      data = "0 = a b 0",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "b",
+      tags = {}
+    }, {
+      data = "0 = b 0",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "a",
+      tags = {}
+    }, {
+      data = "a",
+      tags = {}
+    }, {
+      data = "1 = a a 1",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "b",
+      tags = {}
+    }, {
+      data = "0 = b 0",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "a",
+      tags = {}
+    }, {
+      data = "1 = a 1",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "b",
+      tags = {}
+    }, {
+      data = "a",
+      tags = {}
+    }, {
+      data = "1 = b a 1",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "a",
+      tags = {}
+    }, {
+      data = "1 = a 1",
+      tags = {}
+    } } }
+{ "text", { {
+      data = "b",
+      tags = {}
+    }, {
+      data = "b",
+      tags = {}
+    }, {
+      data = "0 = b b 0",
+      tags = {}
+    } } }
+{ "return" }
+]]--