FUNCTION DESCRIPTION IS AT THE END OF THIS FILE.
Description:
This class is aim to read in .ini file into array for easy reference.
Syntax:
$data = new INIPARSER( "filename" [, "start state", "debuglevel"])
explanation:
$filename: empty if you want to 'program' in the data.
start state = 0 wait for keyword PARSERSTART before interpretation
start state = 1 jump straight into interpretation
This is give me three mode of reading an ini file which illustrates in the
sample script
-----------------------------------------------
EXTERNAL DATA FILE
Say a file with format:
[category1]
item1="asfasfd"
item2="safdasdfsaf"
item3="asfdasfdasfd"
[category2, FREE]
line 1 lsjdfsadf
line 2 lsajfdlsadfsf
[ ] encloses the category name, if the items are free forms, ie no equal signs, use a ",FREE" after the category name.
To read this file,
$data = new INIPARSER("filename");
echo $data->item['category1']['item1']."<BR>";
echo $data->item['category1']['item2']."<BR>";
...
echo $data->item['category2'][0]."<BR>";
echo $data->item['category2'][1]."<BR>";
echo $data->item['category2'][2]."<BR>";
--------------------------------------------------------
INTERNAL SOURCE
If I want to embed the table in my php script, here's how I do it:
Note that class start with referencing itself using PHP built-in variable
__FILE__, and init state 0, ie don't interprete unless between PARSERSTART
and PARSEREND pair.
<?php
include_once "class_iniparser.php";
$data= new INIPARSER(__FILE__, 0);
.....
die; // so I won't leak out the following lines to client
?>
<! // so it will not display even it leak out
PARSERSTART
[cat1]
item1=asfddsaf
....
PASEREND
!>
--------------------------------------------------------
PROGRAMM MODE
For those who want to rig in prgram code, here's how to assess parser
engine directly, one line at one time:
$data = new INIPARSER("");
$data->ParseLine('[cat1]');
$data->ParseLine('item1=sdfsadf');
....
========================================================
Update Category using item from another category
If I have two category:
[FIELD]
data1=abc
date2=def
[STYLE]
HEADER=<BODY ALIGN=CENTER>
[CONTENT, FREE]
{HEADER}
Data 1 is {data1} and Data 2 is {data2}
Why don't I use data in FIELD to update CONTENT to give me
Data 1 is abc and Data 2 is def
That's how I do it:
$data->UpdateCat('HTML', 'CONTENT', 'STYLE', 'FIELD', ...)
The 'CONTENT' must be a FREE format since it is the data and not the key that changes and 'FIELD; must be a index field since it must have both key and value. The declaration of FREE category is by adding a ", FREE" prefix.
Note that the change in destination cat is permanent, ie the data in 'HTML' is change
permanently. If such changes is not desired, have to do a bit of work
$content = $data->GetCatStr('HTML');
$html = $data->UpdateStr($content, 'STYLE');
$html = $data->UpdateStr($html, 'FIELD');
$html = $data->UpdateStr($html, 'FIELD2');
$html = $data->UpdateStr($html, 'FIELD3');
The command GetCatStr will return a string that contains all the row in the FREE format category.
----------------------------------------------------------------------
============================
function INIPARSER($file_name = "", $parse_state=1, $debug_level=1)
USES: to initialize INIPARSER class
INPUT:
file_name
: name of ini file to be read in
"": start with empty set
parase_state:
1: jump straight into interpretation
0: wait for PARSERSTART before interpretation
PARSEREND will end. Use for embeded data within
PHP program or data file
debug_level:
0 - 9: 0 no output, 9: very messy output.
============================
function ParseFile($file_name="", $parse_state=1)
USES: to read in category from a file
INPUT
file_name: file to be read
parse_state: as in INIPARSER
============================
function ReadFile($des_cat, $file_name)
USES: To read a file content into a FREE FORM category
INPUT:
$des_cat: destination category to be used
$file_name: name of file to be read
OUTPUT:
content of file stored in $this->item[$des_cat][<line_no start from 0>]
to reproduct: $str = $this->GenCatStr($des_cat);
============================
function ReadStr($des_cat, $str)
USES: To store a string of text into a FREE FORM category
INPUT:
$des_cat: destination category to be used
$str: data content
OUTPUT:
content of file stored in $this->item[$des_cat][<line_no start from 0>]
to reproduct: $str = $this->GenCatStr($des_cat);
============================
function SetItem($des_cat, $field_name, $value)
USES: to store a value to an item within a category
INPUT:
$des_cat: destination category
$field_name: destination field
$value: value to be stored
REMARK
to retreive: $value = $this->item[$des_cat][$field_name]
============================
function ParseLine($buffer)
INTERNAL: parse ini file with a state diagram.
============================
function ParseCategory($input)
INTERNAL: to determine a category header is free form or index
============================
function ParseItem($input)
INTERNAL: to add an item according to category type
============================
function UpdateCat( $tmpl_cat, $data_cat, $des_cat = "")
USES: To replace {} fields in $tmpl_cat with actual value from $data_cat
If des_cat is ommitted, $tmpl_cat is overwritten
INPUT
$tmpl_cat: template category whose items contain {} field
$data_cat: {name} field will be replaced by the $this->item[data_cat]['name']
$des_cat: destination cat to be written to, if empty, tmpl_cat is used.
============================
function UpdateStr( $str, $src_cat)
USES: to replace {} fields in string with the src_cat
============================
function GetCatStr( $cat)
USES: to combine the items in the $cat to give a string
INPUT: $cat: category to be output
OUTPUT: string
eg. $html = GetCatStr("HTML_SOURCE");
============================
function GenForm()
USES: Single template with multiple data sources merge
INPUT:
Arg 1 (MUST) des_cat: des_cat to be written to
Arg 2 (MUST) tmpl_cat: template cat with {} fields
Arg 3- (OPTION) data_cat: zero or more data cat to be merged
OUTPUT:
string of the destination cat
Example
$html = $this->GenForm("HTML_FINAL", "HTML_TEMPLATE",
"STYLE_DATA", "FIELD_DATA");
HTML_TEMPLATE's {} fields will be replaced by items in
STYLE_DATA followed by FIELD_DATA in that order.
The output is returned to $html.
============================
function FormLogic($action_cat, $action)
USES: based on the $action, trigger respective function
[HTMLACTION]
ACTION1=FUNC1, FILENAME1.php, FILENAME2.php
ACTION2=FUNC2
FormLogic('HTMLACTION', 'ACTION1') will cause this action:
include FILENAME1.php;
include FILENAME2.php;
FUNC1();
FormLogic('HTMLACTION', 'ACTION2') will cause this action:
FUNC2();
Note that I have not master how to throw in the argument. If you can post it
to me.
============================
function ShowItem( $html = 1)
USES: to show all category and item on screen. For debugging purposes.
============================
function SetForm($form_name, $action_file="", $action_field="form_action", $method="POST", $extension="")
USES: To create a form related field:
INPUT:
form_name: name of the form to be generated
action_file: the form will be submitted to this URL
action_field: the name of the field containing the action value
method: form method, either POST or GET
extenstion: eg encode=multpart/application ...
OUTPUT
$this->item["FORM_NAME"]["FORMSTART"] =
<FORM NAME=FORM_NAME METHOD=GET ACTION=action_file $extension>
<INPUT TYPE=HIDDEN NAME=action_field>
note that this formstart will be added hidden fidden field
with AddFormHidden statement;
$this->item["FORM_NAME"]["JSSUBMIT"] =
<script>function SUBMIT(value)
{ document.forms.FORM_NAME.action_field = value;
document.forms.submit();
} </script>
use for page link. Eg
<A HREF='javascript:SUBMIT('FORMACTION')'>FORM ACTION</A>
will create a link to jump to the same page but execute the function
defined by FORMACTION in the logic category.
============================
function AddFormHidden($form_name, $name, $value)
USES: To add a hidden field to pass information between pages
INPUT: FORM_NAME: form name to add to
$name: name of the field
$value: value of the field
OUTPUT
$this->item[FORM_NAME]['FORMSSTART'] will be appended with
a statement:
<INPUT TYPE=HIDDEN NAME=name VALUE=value>
============================
function Debug($level, $msg)
USES: Debug purpose. If $level < $this->debug_level, the msg will not be displayed
============================
function Output($str, $html)
INTERNAL
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