ALPHA Script - XML Model (Draft 7)

1. XML Model (Draft 7)
ALPHA Script - XML Model has to be well defined and self explained. It is important to try to
generate a lightweight XML schema for easy and fast parsing.
XML Model (Schema)
<?xml version="1.0" encoding="UTF­8"?>
<program name="[File name]">
[XML CODE]
</program>
Code Sections
1. Definitions
<definitions>
<definition id="def_num">
…
</definition>
</definitions>
2. Code Blocks
<code_blocks>
<code_block id="code_block_num">
…
</code_block>
</code_blocks>
3. Base
<base>
…
</base
In the XML schema any "code" element in the above sections must have a unique ID.
References & Values
In the XML the references are marked with "@" and the values are marked with "$".
The references return an expression for processing while the values return a
result. These two symbols can be used anywhere in the XML but a few options among
the elements such as "expression", "args" and "execute" do not need them.

2. ALPHA Script XML equivalent tags for each category of keywords.
General Rule
<code id="[Unique ID]" keyword="[KEY]" {[arg 1]="[val 1]"}…/>
Boolean
1. <code id="code_id" keyword="and" arg_1="val_1" arg_2="val_2"/>
2. <code id="code_id" keyword="not" arg_1="val_1" arg_2="val_2"/>
3. <code id="code_id" keyword="or" arg_1="val_1" arg_2="val_2"/>
4. <code id="code_id" keyword="xor" arg_1="val_1" arg_2="val_2"/>
5. <code id="code_id" keyword="true" arg_1="val_1" arg_2="val_2"/>
6. <code id="code_id" keyword="false" arg_1="val_1" arg_2="val_2"/>
Bit
1. <code id="code_id" keyword="shift"
direction="left or right" bits="num"/>
Control
1. <code id="code_id" keyword="if"
expression="def_num" execute="code_block_num"/>
2. <code id="code_id" keyword="else"/>
3. <code id="code_id" keyword="while"
expression="def_num" execute="code_block_num"/>
4. <code id="code_id" keyword="break"/>
5. <code id="code_id" keyword="continue"/>
6. <code id="code_id" keyword="try" execute="code_block_num"/>
7. <code id="code_id" keyword="catch" execute="code_block_num"/>
8. <code id="code_id" keyword="exit" value="val"/>
9. <code id="code_id" keyword="input" input="in" value="val"/>
10. <code id="code_id" keyword="output" output="out" value="val"/>
11. <code id="code_id" keyword="set" {class="class_name"}
var="var_name or array_name"
{index="num"} value="val"/>
12. <code id="code_id" keyword="call"
{class="class_name"} function="func_name or method_name"
{args="def_num"} result="var_name or array_name"/>
13. <code id="code_id" keyword="loop" iterations="val"
{step="val"} execute="code_block_num"/>
14. <code id="code_id" keyword="counter"/>
Results
1. <code id="code_id" keyword="return" value="val"/>

3. Declarations
1. <code id="code_id" keyword="alias" key="keyword" alias="alias"/>
2. <code id="code_id" keyword="directive" value="val"/>
3. <code id="code_id" keyword="var" action="declare"
scope="global, local or public, private" name="var_name"/>
4. <code id="code_id" keyword="array" action="declare"
scope="global, local or public, private" name="array_name"/>
Var & Array Usage
1. <code id="code_id" keyword="var" {class="class_name"}
name="var_name" action="use" function="func_name"
{option="opt"} {value="val"}/>
2. <code id="code_id" keyword="array" {class="class_name"}
name="array_name" action="use" function="func_name"
{index="num"} {option="opt"} {value="val"}/>
Structure
1. <code id="code_id" keyword="package" name="package_name"/>
2. <code id="code_id" keyword="use" package="package_name"/>
3. <code_block> (BEGIN)
4. </code_block> (END)
Class
1. <code id="code_id" keyword="class" class="class_name"
type="dynamic or static" execute="code_block_num"/>
Function
1. <code id="code_id" keyword="function" function="func_name"
{args="def_num"} execute="code_block_num" result="var_name"/>
Method
1. <code id="code_id" keyword="method" method="method_name"
{args="def_num"} scope="public or private"
execute="code_block_num" {result="var_name"}/>
Errors & Exceptions
1. <code id="code_id" keyword="debug"/>

4. Utilities
1. <code id="code_id" keyword="db" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
2. <code id="code_id" keyword="net" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
3. <code id="code_id" keyword="file" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
4. <code id="code_id" keyword="security" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
5. <code id="code_id" keyword="graphics" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
6. <code id="code_id" keyword="sound" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
7. <code id="code_id" keyword="system" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
8. <code id="code_id" keyword="virtual" action="declare"
interface="int_name" result="var_name"/>
Virtual Interface Usage
1. <code id="code_id" keyword="virtual" action="use"
interface="int_name" function="func_name"
{option="opt"} {args="def_num"} result="var_name"/>
Argument
1. <code id="code_id" keyword="argument" action="declare" value="val"/>
Argument Usage
1. <code id="code_id" keyword="argument"
action="use" name="arg_name" value="val"/>
Show
1. <code id="code_id" keyword="print" value="val" output="out"/>

5. ALPHA Script XML equivalent tags for each category of symbols.
General Rule
<code id="[Unique ID]" symbol="[SYMBOL]" {[arg 1]="[val 1]" [arg 2]="[val 2]}"/>
Mathematics
1. <code id="code_id" symbol="+" arg_1="val_1" arg_2="val_2"/>
2. <code id="code_id" symbol="­" arg_1="val_1" arg_2="val_2"/>
3. <code id="code_id" symbol="*" arg_1="val_1" arg_2="val_2"/>
4. <code id="code_id" symbol="/" arg_1="val_1" arg_2="val_2"/>
5. <code id="code_id" symbol="%" arg_1="val_1" arg_2="val_2"/>
Comparisons
1. <code id="code_id" symbol="=" arg_1="val_1" arg_2="val_2"/>
2. <code id="code_id" symbol=">" arg_1="val_1" arg_2="val_2"/>
3. <code id="code_id" symbol="<" arg_1="val_1" arg_2="val_2"/>
4. <code id="code_id" symbol="!" arg_1="val_1" arg_2="val_2"/>
Parentheses
1. <code id="code_id" symbol="("/>
2. <code id="code_id" symbol=")"/>
Delimiters
1. <code id="code_id" symbol=","/>

6. ALPHA Script XML equivalent tags of ALPHA Script tags for embedding in HTML 4/5.
General Rule
<code id="code_id" keyword="as_tags"/> ­ Put code in ALPHA Script tags (<@ … @>)
George Delaportas (G0D)
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CEO & Founder of localhost Ltd.
Informatics & Computer Engineer
MSc in Data Communications & Networking
PhD in Digital Forensics