On Mon, Nov 29, 2010 at 4:46 AM, Chris McCormick
<chris@mccormick.cx> wrote:
Hi,
Here is how you can parse Pd patches into rows of atoms in three languages using regular expressions:
/*** Javascript ***/
var lines_re = new RegExp("(#((.|\r|\n)*?)[^\\\\])\r{0,1}\n{0,1};\r{0,1}\n", "gi");
for (pdline = lines_re.exec(patchtext)) {
var atoms = pdline[1].split(/ |\r\n?|\n/);
}
### Python ###
lines_re = re.compile("(#(.*?)[^\\\])\r{0,1}\n{0,1};\r{0,1}\n", re.MULTILINE | re.DOTALL)
split_re = re.compile(" |\r\n?|\n", re.MULTILINE)
for found in lines_re.finditer(patch):
line = found.group(1)
atoms = split_re.split(line)
/*** Java ***/
private static final String line_re = "(#((.|\r|\n)*?)[^\\\\])\r{0,1}\n{0,1};\r{0,1}\n";
private static final String token_re = " |\r\n?|\n";
Pattern pattern = Pattern.compile(line_re, Pattern.MULTILINE);
Pattern token_pattern = Pattern.compile(token_re, Pattern.MULTILINE);
Matcher matcher = pattern.matcher(patchtext);
ArrayList<String[]> atomlines = new ArrayList<String[]>();
while (matcher.find()) {
String[] s = token_pattern.split(matcher.group(1));
atomlines.add(token_pattern.split(matcher.group(1)));
}
Also here is a regular expression for matching dollar args:
/(?:\\{0,1}\$)(\d+)/g;
Hopefully this is useful to someone else.
Cheers,
Chris.
-------------------
http://mccormick.cx
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