Javascript RegEx problem
I am working on modifying a syntax highlighter written in
javascript and it uses several regexes. I need to add a
language to the avail highlighters and need the following regexes
modified to parse the new language, Delphi/Pascal. Source to the
highlighter is avail here:
http://www.dreamprojections.com/SyntaxHighlighter/Default.aspx
**********************************************
COMMENTS
**********************************************
regex = new RegExp('//.*$|/\\*[^\\*]*(.)*?\\*/', 'gm');
Matches- single line comment: '// ' until end of line
multi line comment '{' until closing '}'
Example:
// This is a Comment
{
This is
a multiline comment
}
**********************************************
STRINGS
**********************************************
regex = new RegExp('"(?:\\.|[^\\""])*"', 'g');
Matches - any text enclosed in single quotes
if the string contains single quotes it will be
escaped like this:
'isn''t that grand'
Example:
'this is a string'
**********************************************
DIRECTIVES/REGIONS
**********************************************
regex = new RegExp('^\\s*{/$.*', 'gm');
Matches - '{' followed by '$' followed by 1+ Alpha chars
closed with '}'
Example:
{$IFDEF YAHOO} // this is a directive
{$ELSE YAHOO} // this is a directive
{$ENDDEF YAHOO} // this is a directive
{$R *.res} // this is a directive
**********************************************
NUMBERS
**********************************************
regex = new RegExp('/[^\d]/gi', 'g');
Matches - integer = numeric chars only
float = numerics and decimal only, no commas
hex = '$' foloewd by any combination of 'A'-'F'
and/or 0-9
Example:
x := x + 1234; // example of a number
y := y + 1.0; // example of a float number
z := $FFAA; // example of a hex number
for instance, in the first example:
regex = new RegExp('//.*$|/\\*[^\\*]*(.)*?\\*/', 'gm');
Matches - single line comment: '// ' until end of line
multi line comment '{' until closing '}'
Example:
// This is a Comment
{
This is
a multiline comment
}
the line:
regex = new RegExp('//.*$|/\\*[^\\*]*(.)*?\\*/', 'gm');
is the current regex.
the line(s):
- single line comment: '// ' until end of line
multi line comment '{' until closing '}'
spell out what I want the regex to match
and this:
Example:
// This is a Comment
{
This is
a multiline comment
}
Here is another one that I can't figure out.
Source:
asm
MOV AX,1234H
MOV Number,AX
end;
Need to match everything between the 'asm' and 'end;'
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Mr
2/1/2005 2:55:14 PM
comp.lang.javascript
38370 articles. 
2 followers.
javascript4
2 Replies
3660 Views
JRS: In article <1107269716.711be950c458361567b8868ee0225138@teranews>,
dated Tue, 1 Feb 2005 08:55:14, seen in news:comp.lang.javascript, Mr.
Clean <mrclean@p&g.com> posted :
>I am working on modifying a syntax highlighter written in
>javascript and it uses several regexes. I need to add a
>language to the avail highlighters and need the following regexes
>modified to parse the new language, Delphi/Pascal. Source to the
>highlighter is avail here:
>http://www.dreamprojections.com/SyntaxHighlighter/Default.aspx
>
>
>**********************************************
>COMMENTS
>**********************************************
>regex = new RegExp('//.*$|/\\*[^\\*]*(.)*?\\*/', 'gm');
> Matches- single line comment: '// ' until end of line
> multi line comment '{' until closing '}'
Needs also to support comment (* ... *).
One type of comment can contain the opening symbol for another.
>**********************************************
>DIRECTIVES/REGIONS
>**********************************************
>regex = new RegExp('^\\s*{/$.*', 'gm');
> Matches - '{' followed by '$' followed by 1+ Alpha chars
> closed with '}'
Also (*$ ... *)
>**********************************************
>NUMBERS
>**********************************************
>regex = new RegExp('/[^\d]/gi', 'g');
> Matches - integer = numeric chars only
> float = numerics and decimal only, no commas
> hex = '$' foloewd by any combination of 'A'-'F'
> and/or 0-9
Also needs to handle such as 3.5e4 6.99E-07 .
Note that, to aid Continentals, (. and .) can be used for [ and ] -
there may be others similar that I have forgotten.
--
� John Stockton, Surrey, UK. ?@merlyn.demon.co.uk Turnpike v4.00 MIME. �
<URL:http://www.merlyn.demon.co.uk/> TP/BP/Delphi/&c., FAQqy topics & links;
<URL:http://www.merlyn.demon.co.uk/clpb-faq.txt> RAH Prins : c.l.p.b mFAQ;
<URL:ftp://garbo.uwasa.fi/pc/link/tsfaqp.zip> Timo Salmi's Turbo Pascal FAQ.
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Dr
2/1/2005 9:12:55 PM
<SNIP> > Also needs to handle such as 3.5e4 6.99E-07 . > > Note that, to aid Continentals, (. and .) can be used for [ and ] - > there may be others similar that I have forgotten. You know John, I forgot that you hangout here, too. I am not even familiar with regex expressions. This is a mod to allow a highlighter, noted below, to highlight Delphi code. The author was familiar with Delphi and got one working but a few things were left out. The things you noted above and asm blocks. I know that a parser will probably need to be written to do the asm block kind of like how he did XML. I know you know Delphi so would you be kind enough to help out? http://www.dreamprojections.com/SyntaxHighlighter/Default.aspx
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Mr
2/2/2005 2:52:01 PM
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