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Add inline comments to clarify code #42

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Add inline comments to clarify code #42

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9 changes: 9 additions & 0 deletions jed.js
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Original file line number Diff line number Diff line change
Expand Up @@ -431,16 +431,25 @@ in order to offer easy upgrades -- jsgettext.berlios.de
str_format.parse = function(fmt) {
var _fmt = fmt, match = [], parse_tree = [], arg_names = 0;
while (_fmt) {
// Match all non-percentage sign characters
if ((match = /^[^\x25]+/.exec(_fmt)) !== null) {
parse_tree.push(match[0]);
}

// Match double percentage-signs
else if ((match = /^\x25{2}/.exec(_fmt)) !== null) {
parse_tree.push('%');
}

// Match placeholders
else if ((match = /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(_fmt)) !== null) {

// Named placeholders
if (match[2]) {
arg_names |= 1;
var field_list = [], replacement_field = match[2], field_match = [];

// Match all valid identifiers
if ((field_match = /^([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
field_list.push(field_match[1]);
while ((replacement_field = replacement_field.substring(field_match[0].length)) !== '') {
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