Welcome

Welcome to the MYTHcode.org open source project.
The project is a collection of object pascal libraries for parsing text strings and markup languages HTML, XHTML, XML, CSS and others. Libraries are written in minimalism concept with striving for wide unification.

SubUtils

The unit SubUtils.pas defines for common use. It contains functions for converting, compare differnt types and extract of substrings. For example, the function Sub has 14 overloads and can be used the following variants:

S:='12345678';
Sub(S,2,7)='3456';
Sub(S,2,-2)='3456';
Sub(S,-7,-2)='3456';
Sub(S,'2','7')='3456';
Sub(S,'12','78')='3456';
Sub(S,['2'],['7'])='3456';
...

Generalized diagram:

Sub(S,After,Before)

UniParser

The unit UniParser.pas defines for univaersal parsing. The class TUniParser has overload method Next. It is analogue the function Sub in the objective style.

Concept

Let:

X:='any string';
Parser:=TUniParser.Create(X);
with Parser do while Next('any separator') do Y:=Head+Item+Separator+Tail;

Then for all iterations following conditions hold: X=Y

Examples

A series of Next on ABC string:

Various states of internal pointers:

Init state after creation TUniParser object

After Next('')

After Next('2')

After Next('56')

Final state after Next('9')=false

BNFParser

Backus-Naur form parser. Under construction.

XMLParser

The unit XMLParser.pas can be used for parsing HTML, XHTML, XML and any other documents with tag structure.

Properties of TXMLParser class:

CSSParser

The unit CSSParser.pas is intended for CSS code parsing.

Item property types of TCSSParser class:

CSSColors

The unit CSSColors.pas supports all colours defined in the CSS 2.1 Specification

Examples

HSLColors

The unit HSLColors.pas defines main colours types and contains HSL <==> RGB colour model conversions, where:

RGB

Red Green Blue

HSL

Hue Saturation Luminance

Table of colours is sorted by luminance: