Doc updates.

docs/JetCore.tex

@@ -1,4 +1,4 @@
-\documentclass{refart}
+\documentclass{book}
 
 \title{JET Extension Tags}
 \author{Bradford Matthew Arant Sr.}
@@ -10,7 +10,7 @@
 
 \tableofcontents
 
-\chaptermark{Introduction}
+\chapter{Introduction}
 
 JET will pass through the untagged areas to the output without any
 modifications. Data contained within the tags may modify their
@@ -20,7 +20,15 @@ itself is not passed to the output and will not appear in the output.
 Skip Blank Lines options on containers will skip passing any blank
 lines or line containing only whitespace to the output. 
 
-\chaptermark{Tags and Attributes}
+\section{Use Cases}
+
+\subsection{World Wide Web Site}
+
+\subsection{API Handling}
+
+\subsection{Asterisk Dial Plan Generator Tool}
+
+\chapter{Tags and Attributes}
 
 XML style tagging is used to insert functions and other behaviors into
 the script. As the document contents are output a tag may be inserted
@@ -29,10 +37,10 @@ to perform the desired function and affect the output.
 Tag attributes are used to pass parameters into the operations and
 functionality for each tag. 
 
-Outputting a database from mysql may be performed using the \<mysql\> tag
-in combination with the \<ifrow\>, \<whilerow\> and \<sql\> tags.  
+Outputting a database from mysql may be performed using the <mysql\> tag
+in combination with the <ifrow\>, <whilerow\> and <sql\> tags.  
 
-\sectionmark{User Defined Tags and Tag Libraries}
+\chapter{User Defined Tags and Tag Libraries}
 
 You can define your own tag definitions and use them within your JET
 scripts. 
@@ -63,7 +71,7 @@ higher tag.
 
 
 
-\chaptermark{Variables and Variable Types}
+\chapter{Variables and Variable Types}
 
 Variables are used to contain dynamic content values and can be
 sourced from several locations and limited in scope depending on use.
@@ -77,7 +85,7 @@ variable types and a brief description of their source:
 
 \begin{itemize}
 
-\item Global - values can be initiaized using the set tag and
+\item Global - values can be initialized using the set tag and
 specifying the scope of global. 
 
 \item Local - 
@@ -85,6 +93,10 @@ specifying the scope of global.
 \item Keyword - within a tag's container we may access the keyword
 values specified on the containing tag.
 
+\item Environment - 
+
+\item CGI Variables - 
+
 \end{itemize}
 
 \section{Global Variables}
@@ -116,18 +128,22 @@ The variable retrieved is not processed for variable resolution.
 
 \section{Environment Variables}
 
+Environment variables are values existing in the exported list of value/pairs as provided by the operating system process. Apache, NGINX as well as other HTML server platforms provide environment variables to describe the requests being handed in. 
+
 \section{CGI Variables}
 
 When operating Jet in CGI mode you have access to the form data
 submitted by the remote client (usually a browser or curl request)
 using the POST method.  
 
-\chapter{Expressions}
+\sectionmark{Expressions}
 
 Expressions are used to perform complicated calculations (arithmetic), perform
 comparisons between values (boolean), manipulate strings (string) or
 perform operations on dates (date). 
 
+\chapter{Expressions}
+
 \section{Operators}
 
 Operators are used to perform arithmetic or boolean operations on
@@ -142,22 +158,59 @@ operators, as follows:
 
 \end{itemize}
 
-\subsection{Arithmentic Operators}
+\subsection{Arithmetic Operators}
 
 \subsection{Boolean Operators}
 
-
 \section{Function Reference}
 
+\section{Date Functions}
+
+\subsection{unixtime}
+
+\section{Math Functions}
+
+\subsection{abs}
+
+\subsection{acos}
+
+Returns to arc-cosine of the given parameter.
+
+\subsection{asin}
+
+\subsection{atan}
+
+\subsection{cos}
+
+\subsection{max}
+
+\subsection{min}
+
+\subsection{pow}
+
+\subsection{random}
+
+Use the random function to return a random number between 0 and 1.
+
+\subsection{sin}
+
+\section{String Functions}
+
+String functions are provided to accelerate the building and parsing of strings passed into the expression. Numbers can be treated as a string or a number depending on the function called and the data state of the values being manipulated. 
+
 \subsection{concat}
 
+The concat tag is used to assemble a string by concatenating one or more values to formulate the resulting string. 
+
+
+
 \subsection{integer}
 
 \subsection{left}
 
-\subsection{random}
+\subsection{reverse}
 
-Use the random function to return a random number between 0 and 1.
+\subsection{right}
 
 \subsection{round}
 
@@ -167,7 +220,17 @@ number of digits after the decimal point.
 \subsection{substring}
 
 Use the substring operation to extract a portion of a string and return
-the value as a string. 
+the value as a string.
+
+\subsection{tolower} 
+
+\subsection{toupper}
+
+\subsection{trim}
+
+\subsection{expr}
+
+Use the expr function to parse the string contents contained in the expr string.
 
 \chapter{Common Gateway Interface Features}