The Ring programming language version 1.7 book - Part 49 of 196

1. Ring Documentation, Release 1.7
borderimagesource borderimagewidth borderleft borderleftcolor borderleftstyle
borderleftwidth borderradius borderright borderrightcolor borderrightstyle
borderrightwidth borderstyle bordertop bordertopcolor bordertopleftradius
bordertoprightradius bordertopstyle bordertopwidth borderwidth boxdecorationbreak
boxshadow bottom clear clip display float height left margin marginbottom marginleft
marginright margintop maxheight maxwidth minheight minwidth overflow overflowx
overflowy padding paddingbottom paddingleft paddingright paddingtop position
right top visibility width verticalalign zindex aligncontent alignitems alignself
flex flexbasis flexdirection flexflow flexgrow flexshrink flexwrap justifycontent
order hangingpunctuation hyphens letterspacing linebreak lineheight overflowwrap
tabsize textalign textalignlast textcombineupright textindent textjustify
texttransform whitespace wordbreak wordspacing wordwrap textdecoration
textdecorationcolor textdecorationline textdecorationstyle textshadow
textunderlineposition @fontface @fontfeaturevalues font fontfamily fontfeaturesettings
fontkerning fontlanguageoverride fontsize fontsizeadjust fontstretch fontstyle
fontsynthesis fontvariant fontvariantalternates fontvariantcaps fontvarianteastasian
fontvariantligatures fontvariantnumeric fontvariantposition fontweight direction
textorientation unicodebidi writingmode bordercollapse borderspacing captionside
emptycells tablelayout counterincrement counterreset liststyle liststyleimage
liststyleposition liststyletype @keyframes animation animationdelay animationdirection
animationduration animationfillmode animationiterationcount animationname
animationplaystate animationtimingfunction backfacevisibility perspective
perspectiveorigin transform transformorigin transformstyle transition
transitionproperty transitionduration transitiontimingfunction transitiondelay
boxsizing content cursor imemode navdown navindex navleft navright navup
outline outlinecolor outlineoffset outlinestyle outlinewidth resize textoverflow
breakafter breakbefore breakinside columncount columnfill columngap columnrule
columnrulecolor columnrulestyle columnrulewidth columnspan columnwidth columns
widows orphans pagebreakafter pagebreakbefore pagebreakinside marks quotes
filter imageorientation imagerendering imageresolution objectfit objectposition
mask masktype mark markafter markbefore phonemes rest restafter restbefore
voicebalance voiceduration voicepitch voicepitchrange voicerate voicestress
voicevolume marqueedirection marqueeplaycount marqueespeed marqueestyle datatoggle
dataride datatarget dataslideto dataslide datadismiss dataplacement datacontent
datatrigger dataspy dataoffset dataoffsettop
49.27 ScriptFunctions Class
This class contains methods for adding JavaScript code to the generated web page.
The class methods are merged to the Page class, so we can use the next methods with page objects directly.
Method Parameters Description
Script cCode Add cCode string between <script> and </script>
ScriptRedirec-
tion
cURL set window.location to cURL
ScriptFunc cFuncName,cCode Define function cFuncName that contains cCode
ScriptFuncAlert cFuncName,cMsg Define function cFuncName that uses alert() to print
cMsg
ScriptFuncAjax cFuncName,cLink,cDiv Define function cFuncName that load cLink in cDiv
ScriptFuncClean cFuncName,cDiv Define function cFuncName that clear the cDiv
ScriptFuncSe-
lect
cF,aL,cD,cR,cGR,cFC,nTO,cL1,cL2 Used to Edit/Delete Grid Record
ScriptScroll-
Fixed
cDiv,nSize Set cDiv as Fixed Div with Size = nSize
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2. Ring Documentation, Release 1.7
49.28 StyleFunctions Class
This class contains methods for adding CSS to the generated web page.
Like ScriptFunctions Class, The StyleFunctions class methods are merged to the Page class, so we can use the next
methods with page objects directly.
Method Parameters Description
StyleFloatLeft None Return float: left ;
StyleFloatRight None Return float: right ;
StyleSizeFull None Return width: 100% ; height: 100% ;
Stylecolor x Return ” color: ” + x + ” ; “
Stylebackcolor x Return ” background-color: ” + x + ” ;”
StyleTextCenter None Return “text-align: center ;”
StyleTextRight None Return “text-align: right ;”
StyleTextLeft None Return “text-align: left ;”
StyleSize x,y Return ” width: ” + x + ” ; height: ” + y + ” ;”
StyleWidth x Return ” width: ” + x + ” ;”
StyleHeight x Return ” height: ” + x + ” ;”
StyleTop x Return ” top: ” + x + ” ;”
StyleLeft x Return ” Left: ” + x + ” ;”
StylePos x,y Return ” top: ” + x + ” ;” + ” Left: ” + y + ” ;”
StyleHorizontalCenter None Return ” margin-right:auto ; margin-left:auto; “
StyleMarginTop x Return ” margin-top: ” + x + ” ;”
StyleMarginRight x Return ” margin-right: ” + x + ” ;”
StyleMarginLeft x Return ” margin-left: ” + x + ” ;”
StyleDivCenter nWidth,nHeight Create Div in the center of the page
StyleAbsolute None Return ” position:absolute ;”
StyleFixed None Return ” position:fixed ;”
StyleZIndex x Return ” z-index: ” + x + ” ;”
StyleFontSize x Return ” font-size: ” + x + ” ;”
StyleGradient x Generate Gradient (x values from 1 to 60)
StyleTable None Set table properties
StyleTableRows id Set different color to even and odd rows in the table
StyleTableNoBorder None Return ” border-style: none;”
49.29 WebPage Class
We use braces to access the active WebPage object attributes
Each one of these attribute will return a new object to access again using braces.
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Attribute Description
H1 Wraps HTML H1.
H2 Wraps HTML H2.
H3 Wraps HTML H3.
H4 Wraps HTML H4.
H5 Wraps HTML H5.
H6 Wraps HTML H6.
P Wraps HTML P.
Link Wraps HTML link.
NewLine Wraps HTML NewLine.
Div Wraps HTML Div.
Form Wraps HTML Form.
Input Wraps HTML Input.
TextArea Wraps HTML TextArea.
Select Wraps HTML Select.
Option Wraps HTML Option.
Image Wraps HTML Image.
UL Wraps HTML UL.
LI Wraps HTML LI.
Table Wraps HTML Table.
TR Wraps HTML TR.
TD Wraps HTML TD.
TH Wraps HTML TH.
Audio Wraps HTML Audio.
Video Wraps HTML Video.
Nav Wraps HTML Nav.
Span Wraps HTML Span.
Button Wraps HTML Button.
49.30 HtmlPage Class
The same as the WebPage class with the next changes
1. No output to the stdout
2. Provide the Output Method to get the output
Syntax:
output() ---> The output as string
49.30. HtmlPage Class 454

4. CHAPTER
FIFTY
USING RINGLIBCURL
In this chapter we will learn about using RingLibCurl
50.1 Get Request
Example:
load "libcurl.ring"
curl = curl_easy_init()
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1)
curl_easy_setopt(curl, CURLOPT_URL, "http://ring-lang.sf.net")
curl_easy_perform(curl)
curl_easy_cleanup(curl)
50.2 Post Request
Example:
load "libcurl.ring"
curl = curl_easy_init()
cPostThis = "page=4&Number1=4&Number2=5"
curl_easy_setopt(curl, CURLOPT_URL, "http://localhost/ringapp/index.ring?page=3")
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, cPostThis)
curl_easy_perform(curl)
curl_easy_cleanup(curl)
50.3 Facebook Login
Example:
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load "libcurl.ring"
see "Enter Email : " give $login_email
See "Enter Password : " give $login_pass
curl = curl_easy_init()
curl_easy_setopt(curl, CURLOPT_URL, 'https://www.facebook.com/login.php')
curl_easy_setopt(curl, CURLOPT_POSTFIELDS,'charset_test=j u s t a t e s t'+
' &email='+urlencode($login_email)+'&pass='+
urlencode($login_pass)+'&login=Login')
curl_easy_setopt(curl, CURLOPT_POST, 1)
curl_easy_setopt(curl, CURLOPT_HEADER, 0)
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1)
curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookies.txt")
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "cookies.txt")
curl_easy_setopt(curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U;"+
" Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3")
curl_easy_setopt(curl, CURLOPT_REFERER, "http://www.facebook.com")
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE)
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2)
mylist = curl_slist_append(NULL,'Accept-Charset: utf-8')
curl_slist_append(mylist,'Accept-Language: en-us,en;q=0.7,bn-bd;q=0.3')
curl_slist_append(mylist,'Accept: text/xml,application/xml,'+
'application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5')
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, mylist)
curl_easy_setopt(curl, CURLOPT_COOKIESESSION, false)
curl_easy_perform(curl)
curl_easy_cleanup(curl)
Func URLEncode cStr
cOut = ""
for x in cStr
if isalnum(x)
cOut += x
but x = " "
cOut += "+"
else
cOut += "%"+str2hex(x)
ok
next
return cOut
50.4 Save Output to String
Example:
load "libcurl.ring"
curl = curl_easy_init()
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1)
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curl_easy_setopt(curl, CURLOPT_URL, "http://ring-lang.sf.net")
cOutput = curl_easy_perform_silent(curl)
See "Output:" + nl
see cOutput
curl_easy_cleanup(curl)
50.5 Get Stock Data From Yahoo
Example:
Load "libcurl.ring"
### Part 1 --- Get Crumb and Cookie -----------------------------------------
See "Start curl_easy_init(): "+ nl
curl = curl_easy_init() ### >>> HANDLE >>> 01006BD0 CURL 0
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1)
curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookies.txt")
curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "cookies.txt")
curl_easy_setopt(curl, CURLOPT_URL, "https://finance.yahoo.com/quote/AMZN/history")
### HTML Data >>> STDOUT Window, Use curl_easy_perform_silent >>> String
cOutput = curl_easy_perform_silent(curl) ### GO Get Data >>> String
### Extract Crumb from data
### "CrumbStore":{"crumb":"abcdefghijk"},
if cOutput != NULL
newStr1 = substr(cOutput, substr(cOutput, '"CrumbStore":{"crumb":"' ), 48 )
nPosS = substr(newStr1, ':"' ) ; ### Start of crumb -2
nPosE = substr(newStr1, '"}' ) ; ### End of crumb
nCount = nPosE - nPosS -2 ### size of crumb
myCrumb = substr(newStr1, nPosS +2, nCount)
See "myCrumb.: |"+ myCrumb +"|" +nl
### UniCode "u002F" replace it with "/"
if substr( myCrumb, "u002F")
myCrumb = substr( myCrumb, "u002F", "/")
See "myCrumb2: |"+ myCrumb +"|"+ nl
ok
else
See "No Connectivity to Yahoo. Looking for Cookie and Crumb." +nl +nl
ok
### Part 2 --- Send URL with Crumb, and Cookie -----------------------------------------
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### Send URL+Crumb to Yahoo to fetch 1st stock history data,
$url = "https://query1.finance.yahoo.com/v7/finance/download/AMZN?period1=1277856000&period2=
curl_easy_setopt(curl, CURLOPT_URL, $url);
cStr = curl_easy_perform_silent(curl)
See cStr
curl_easy_cleanup(curl) ### REMEMBER to CLOSE CURL
Output:
myCrumb.: |sEEeW97mxvN|
Date,Open,High,Low,Close,Adj Close,Volume
2010-07-05,110.650002,117.480003,109.000000,117.260002,117.260002,21000400
2010-07-12,117.809998,124.879997,117.320000,118.489998,118.489998,29407300
2010-07-19,118.379997,121.250000,105.800003,118.870003,118.870003,74252100
50.5. Get Stock Data From Yahoo 458

8. CHAPTER
FIFTYONE
USING RINGZIP
In this chapter we will learn about using RingZip
51.1 Create Zip File
Example : Create myfile.zip contains 4 files
load "ziplib.ring"
oZip = zip_openfile("myfile.zip",'w')
zip_addfile(oZip,"test.c")
zip_addfile(oZip,"zip.c")
zip_addfile(oZip,"zip.h")
zip_addfile(oZip,"miniz.h")
zip_close(oZip)
51.2 Extract Zip File
Example : Extract myfile.zip to myfolder folder.
load "ziplib.ring"
zip_extract_allfiles("myfile.zip","myfolder")
51.3 Print Files in Zip file
Example : Print file names in the myfile.zip
load "ziplib.ring"
oZip = zip_openfile("myfile.zip",'r')
for x=1 to zip_filescount(oZip)
see zip_getfilenamebyindex(oZip,x) + nl
next
zip_close(oZip)
51.4 Using RingZip Classes
The RingZip library comes with two classes. The Zip class and the ZipEntry class.
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Example (1):
load "ziplib.ring"
new Zip {
setFileName("myfile.zip")
open("w")
newEntry() {
open("test.c")
writefile("test.c")
close()
}
close()
}
Example (2):
load "ziplib.ring"
new Zip {
SetFileName("myfile.zip")
Open("w")
AddFile("test.c")
AddFile("zip.c")
AddFile("zip.h")
AddFile("miniz.h")
Close()
}
Example (3):
load "ziplib.ring"
new zip {
SetFileName("myfile.zip")
ExtractAllFiles("myfolder")
}
Example (4):
load "ziplib.ring"
new Zip {
SetFileName("myfile.zip")
Open("r")
see FilesCount()
Close()
}
Example (5):
load "ziplib.ring"
new Zip {
SetFileName("myfile.zip")
Open("r")
for x = 1 to filescount()
See GetFileNameByIndex(x) + nl
next
Close()
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}
51.5 Zip Class Reference
Methods:
Method Description/Output
SetFileName(cName) Set the Zip file name
GetFileName() Return the Zip file name
Open(cMode) Open File, cMode = “a”, “w” or “r”
Close() Close the Zip File
AddFile(cFileName) Add file to the Zip file
ExtractAllFiles(cFolder) Extract all files from the Zip file
FilesCount() Return files count in the Zip file
GetFileNameByIndex(nIndex) Return file name in the Zip file by file index
NewEntry() Create new ZipEntry object
51.6 ZipEntry Class Reference
Methods:
Method Description/Output
Open(cFileName) Open new Entry
WriteFile(cFileName) Write File to the Entry
WriteString(cString) Write String to the Entry
Close() Close the Entry
51.5. Zip Class Reference 461