Hi guys,
I'm really hoping someone could help me, this may not be the forum for this question
but I thought I'll ask for your help anyway. I am a ColdFusion developer. I'm trying
to re-write some CF code in ASP, and am stuck.
To give you an overview, I'm working on a job logging system. The customer calls the
helps desk to log a job, the help desk creates a new job, adds the comments to the
log. The comment is wrapped around a userdefined tag in this format and saved in the
database. ex:
<newLog username='cfcoder'><span class='timestamp'>cfcoder |
20/10/2004 16:34:12</span><br>new test comments<hr></newLog>
as you may have noticed, the comment (in this case: "new test comments") is wrapped
around the userdefined tag <newlog>
The customer front-end is written in ASP. Currently if a customer views this job it
displays the <newlog> tag and I want to add some asp, do some pattern matching to only
display the comment. I would really appreciate if someone could show me how to
re-write my code in ASP. I have attached my coldfusion code
[CODE]
<cfscript>
function GetHeaders(header){
// regexp for timestamp
var timestampRegexp = "\d{1,2}/\d{1,2}/\d{4}\s+\d{1,2}:\d{1,2}:\d{1,2}";
var stTmp = StructNew();
var stReturn = StructNew();
// remove *** if necessary
header = REReplace(header,"(^\s*[*]{3}\s*|\s*[*]{3}\s*$)","","all");
// find timestamp
stTmp = REFind(timestampRegexp,header,1,true);
if(stTmp.pos[1]){
// if there is a timestamp, the user is everything in the header but the
timestamp
// a header looks like this: CFCODER01 | 14/11/2003 14:18:56
// get the list of all usernames from the header for the log (one or more)
stReturn.user = Trim(Removechars(header,stTmp.pos[1],stTmp.len[1]));
// get the timestamp
// get the list of all timestamps from the header for the log (one or more)
stReturn.timestamp = REReplace(Mid(header,stTmp.pos[1],stTmp.len[1]),"\s+","
");
}
else{
// if there is NO timestamp, the user is everything in the
stReturn.user = Trim(header);
// create a fake timestamp for normalization
stReturn.timestamp = "00/00/0000 00:00:00";
}
// remove trailing pipe from user if necessary
stReturn.user = REReplace(stReturn.user,"\s*\|$","");
// remove log tags
stReturn.user = REReplaceNoCase(stReturn.user,"</?(new|legacy)Log\b.*?>","","all");
// determine log type
stReturn.log = "legacyLog";
if(FindNoCase("<newLog",header)) stReturn.log = "newLog";
return stReturn;
}
function FormatComment(stComment){
var oldchars = "<,>,""";
var newchars = "<,>,"";
return '<#stComment.log# userName="#stComment.user#"><span
class="timestamp">#stComment.user# | #stComment.timestamp#</span><br> <pre
style="font-family:Arial,
Verdana;">#ReplaceList(stComment.text,oldchars,newchars)#</pre><hr></#stComment.log#>';
}
function GetComments(str){
var start = 1;
var cnt = 0;
var i = 0;
var stComments = StructNew();
var bComments = true;
var stTmp = StructNew();
/* regular expression for header: line surrounded with *** OR line ending with
(?m) multi-line mode - matches before and after newlines
(^ start of line instead of start of string)
($ end of line instead of end of string)
^ start of line
[ \t]* any number of spaces or tabs
( start group (for OR)
[*]{3} three stars
[^\n]*? Any characters except new line any number of times
(non greedy operator *?)
[*]{3} three stars
| OR
[^\n]*? Any characters except new line any number of times
\d{1,2} 1-2 digits
/ /
\d{1,2} 1-2 digits
/ /
\d{4} 4 digits
[ \t]+ one or more spaces or tabs
\d{1,2} 1-2 digits
: :
\d{1,2} 1-2 digits
: :
\d{1,2} 1-2 digits
) end group
[ \t]* any number of spaces or tabs
$ end of line */
var commentRegexp = "(?m)^[ \t]*([*]{3}[^\n]*?[*]{3}|[^\n]*?\d{1,2}/\d{1,2}/\d{4}[
\t]+\d{1,2}:\d{1,2}:\d{1,2})[ \t]*$";
/*
Initialize structure
The structure has 3 keys:
1. "slug" containing the slug
2. "comments" is an array of comments. each element in the array is a
structure containing 4 keys:
"user": user from the header
"timestamp": timestamp from the header
"text": text of the comment
"comment": full formatted comment
3. "formatted": the "comments" field with formatted headers
*/
stComments.comments = ArrayNew(1);
stComments.slug = "";
// normalize returns to newline character (chr(10))
str = REReplace(str,"\r(\n)","\1","all");
// first get rid of redundant tags
str = REReplaceNoCase(str,"</?(span|pre|hr)\b.*?>","","all");
// convert <br> to newline
str = REReplaceNoCase(str,"<br\b.*?>",Chr(10),"all");
// GET THE SLUG
// find first header
stTmp = REFind(commentRegexp,str,start,true);
if(stTmp.pos[1]){
// if there is a header, the slug is everything untill that header
if(stTmp.pos[1] GT 1) stComments.slug = Trim(Left(str,stTmp.pos[1]-1));
// insert the first header into the array
ArrayAppend(stComments.comments,
GetHeaders(Mid(str,stTmp.pos[1],stTmp.len[1])));
// next start position
start = stTmp.pos[1]+stTmp.len[1];
}else{
// if there are no comments, everything is the slug
stComments.slug = Trim(str);
bComments = false;
}
// get comments if any
while(bComments){
// find next header
stTmp = REFind(commentRegexp,str,start,true);
// get index of last comment added to array
i = ArrayLen(stComments.comments);
if(stTmp.pos[1]){
// there is a next header
// get number of characters for last comment
cnt = stTmp.pos[1]-start;
// extract last comment text (and get rid of double linefeeds and log tags)
stComments.comments[i].text =
REReplace(Trim(Mid(str,start,cnt)),"(\n)\n+","\1","all");
stComments.comments[i].text =
REReplaceNoCase(stComments.comments[i].text,"</?(new|legacy)Log\b.*?>","","all");
// construct entire comment
stComments.comments[i].comment = FormatComment(stComments.comments[i]);
// Get next header
ArrayAppend(stComments.comments,
GetHeaders(Mid(str,stTmp.pos[1],stTmp.len[1])));
// next starting position
start = stTmp.pos[1]+stTmp.len[1];
}
else{
// there is no next header
// get number of characters for last comment (untill end of string)
cnt = Len(str)-start+1;
// extract last comment text (and get rid of double linefeeds)
stComments.comments[i].text =
REReplace(Trim(Mid(str,start,cnt)),"(\n)\n+","\1","all");
stComments.comments[i].text =
REReplaceNoCase(stComments.comments[i].text,"</?(new|legacy)Log\b.*?>","","all");
// construct entire comment
stComments.comments[i].comment = FormatComment(stComments.comments[i]);
break;
}
}
// rebuild the entire formatted comment field
// start with the slug
stComments.formatted = stComments.slug;
// loop over formatted comments
for(i=1;i LE ArrayLen(stComments.comments);i=i+1){
// add a double newline if there is already something in the comment field
if(Len(stComments.formatted)) stComments.formatted = stComments.formatted &
chr(10) & chr(10);
// add the formatted comment
stComments.formatted = stComments.formatted & stComments.comments[i].comment;
}
return stComments;
}
function GetCommentsNew(str){
var start = 1;
var cnt = 0;
var i = 0;
var stComments = StructNew();
var bComments = true;
var stTmp = StructNew();
// regular expression for header: line surrounded with *** OR line ending with
var commentRegexp = "<(newLog|legacyLog)\b[^>]*>(.*?)</\1>";
/*
Initialize structure
The structure has 3 keys:
1. "slug" containing the slug
2. "comments" is an array of comments. each element in the array is a
structure containing 4 keys:
"user": empty
"timestamp": empty
"text": empty
"comment": full formatted comment
3. "formatted": the "comments" field with formatted headers
*/
stComments.comments = ArrayNew(1);
stComments.slug = "";
// normalize returns to newline character (chr(10))
str = REReplace(str,"\r(\n)","\1","all");
// GET THE SLUG
// find first comment
stTmp = REFind("<(newLog|legacyLog)\b",str,start,true);
if(stTmp.pos[1]){
// if there is a comment, the slug is everything untill that comment
if(stTmp.pos[1] GT 1) stComments.slug = Trim(Left(str,stTmp.pos[1]-1));
}else{
// if there are no comments, everything is the slug
stComments.slug = Trim(str);
bComments = false;
}
// get comments if any
while(bComments){
// find comment
stTmp = REFind(commentRegexp,str,start,true);
if(stTmp.pos[1]){
// get index of comment to add
i = ArrayLen(stComments.comments) + 1;
stComments.comments[i] = StructNew();
stComments.comments[i].user = "";
stComments.comments[i].timestamp = "";
stComments.comments[i].text = "";
stComments.comments[i].comment = Mid(str,stTmp.pos[1],stTmp.len[1]);
// next starting position
start = stTmp.pos[1]+stTmp.len[1];
}
else{
// there is no next comment
break;
}
}
// rebuild the entire formatted comment field
// start with the slug
stComments.formatted = stComments.slug;
// loop over formatted comments
for(i=1;i LE ArrayLen(stComments.comments);i=i+1){
// add a double newline if there is already something in the comment field
if(Len(stComments.formatted)) stComments.formatted = stComments.formatted &
chr(10) & chr(10);
// add the formatted comment
stComments.formatted = stComments.formatted & stComments.comments[i].comment;
}
return stComments;
}
function GetCommentsWrapper(txt){
if(REFindNoCase("<(newLog|legacyLog)\b[^>]*>",txt))
return GetCommentsNew(txt);
else return GetComments(txt);
}
</cfscript>
<cfset stComments = GetCommentsWrapper("<newLog username='cfcoder'><span
class='timestamp'>cfcoder | 20/10/2004 16:34:12</span><br>new test
comments<hr></newLog>")>
<cfset nLog = ArrayLen(stComments.comments)>
<cfif nLog>
<cfoutput>
<cfloop from='1' to='#ArrayLen(stComments.comments)#' index='i'>
#Replace(stComments.comments[i].comment,"""",'"','All')##Chr(10)#
</cfloop>
</cfoutput>
</cfif>
[/CODE]
I look forward to hearing from someone
Best regards
cfcoder
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