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Convert python-regex inline flag style to JS regex flags 

(imported from commit 16c58fa54c0b87931d873290b175461ceb176d62)
This commit is contained in:
Leo Franchi 2014-01-27 12:22:38 -05:00
parent b83be2cd32
commit dc3c6f34fc
1 changed files with 17 additions and 1 deletions
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18
static/js/echo.js
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@ -344,7 +344,23 @@ function python_to_js_filter(pattern, url) {
current_group++;
}
return [new RegExp(pattern, 'g'), url];
// Convert any python in-regex flags to RegExp flags
var js_flags = 'g';
var inline_flag_re = /\(\?([iLmsux]+)\)/;
match = inline_flag_re.exec(pattern);
// JS regexes only support i (case insensitivity) and m (multiline)
// flags, so keep those and ignore the rest
if (match) {
var py_flags = match[1].split("");
_.each(py_flags, function (flag) {
if ("im".indexOf(flag) !== -1) {
js_flags += flag;
}
});
pattern = pattern.replace(inline_flag_re, "");
}
return [new RegExp(pattern, js_flags), url];
}
exports.set_realm_filters = function set_realm_filters(realm_filters) {