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closes #242, internationalized date handling

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This commit is contained in:
Simon Kornblith 2006-09-06 07:04:02 +00:00
parent 7f40d696a4
commit 451be4b3a3
3 changed files with 83 additions and 39 deletions
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6
chrome/chromeFiles/content/scholar/xpcom/cite.js
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@ -342,9 +342,7 @@ CSL.ns = "http://purl.org/net/xbiblio/csl";
CSL.init = function() {
if(!CSL._xmlLang) {
// get XML lang
var localeService = Components.classes['@mozilla.org/intl/nslocaleservice;1'].
getService(Components.interfaces.nsILocaleService);
CSL._xmlLang = localeService.getLocaleComponentForUserAgent();
CSL._xmlLang = Scholar.locale;
// read locales.xml from directory
var req = Components.classes["@mozilla.org/xmlextras/xmlhttprequest;1"].
@ -1001,7 +999,7 @@ CSL.prototype._formatDate = function(element, date, format) {
}
}
} else if(child.name == "month") {
if(date.month) {
if(date.month != undefined) {
if(format == "compare") {
string = this._lpad(date.month+1, "0", 2);
} else {

112
chrome/chromeFiles/content/scholar/xpcom/scholar.js
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@ -39,6 +39,7 @@ var Scholar = new function(){
// Public properties
this.version;
this.platform;
this.locale;
this.isMac;
/*
@ -77,6 +78,11 @@ var Scholar = new function(){
this.platform = win.navigator.platform;
this.isMac = (this.platform.substr(0, 3) == "Mac");
// Locale
var localeService = Components.classes['@mozilla.org/intl/nslocaleservice;1'].
getService(Components.interfaces.nsILocaleService);
this.locale = localeService.getLocaleComponentForUserAgent();
// Load in the localization stringbundle for use by getString(name)
var src = 'chrome://scholar/locale/scholar.properties';
var localeService =
@ -645,6 +651,10 @@ Scholar.Date = new function(){
* part: anything that does not fall under any of the above categories
* (e.g., "Summer," etc.)
*/
var _slashRe = /\b([0-9]{1,4})([\-\/\.\u5e74])([0-9]{1,2})([\-\/\.\u6708])([0-9]{1,4})\b/
var _yearRe = /^(.*)\b((?:circa |around |about |c\.? ?)?[0-9]{1,4}(?: ?B\.? ?C\.?(?: ?E\.?)?| ?C\.? ?E\.?| ?A\.? ?D\.?)|[0-9]{3,4})\b(.*)$/i;
var _monthRe = null;
var _dayRe = null;
function strToDate(string) {
var date = new Object();
@ -655,39 +665,68 @@ Scholar.Date = new function(){
string = string.toString().replace(/^\s+/, "").replace(/\s+$/, "").replace(/\s+/, " ");
var dateRe = /^([0-9]{4})[\-\/]([0-9]{2})[\-\/]([0-9]{2})$/;
var m = dateRe.exec(string);
if(m) { // sql date
Scholar.debug("DATE: used form 1: SQL");
var jsDate = new Date(m[1], m[2]-1, m[3], false, false, false);
} else { // not an sql date
var yearRe = /^[0-9]+$/i;
if(yearRe.test(string)) {
// is just a year
Scholar.debug("DATE: used form 2: year-only");
date.year = string;
return date;
// first, directly inspect the string
var m = _slashRe.exec(string);
if(m && (m[2] == m[4] || (m[2] == "\u5e74" && m[4] == "\u6708"))) {
// figure out date based on parts
if(m[1].length == 4 || m[2] == "\u5e74") {
// ISO 8601 style date (big endian)
date.year = m[1];
date.month = m[3];
date.day = m[5];
} else {
// local style date (middle or little endian)
date.year = m[5];
var country = Scholar.locale.substr(3);
if(country == "US" || // The United States
country == "FM" || // The Federated States of Micronesia
country == "PW" || // Palau
country == "PH") { // The Philippines
date.month = m[1];
date.day = m[3];
} else {
date.month = m[3];
date.day = m[1];
}
}
// who knows what this is, but try JavaScript's date handling first
var jsDate = new Date(string)
date.year = parseInt(date.year, 10);
date.month = parseInt(date.month, 10);
date.day = parseInt(date.day, 10);
if(date.month > 12) {
// swap day and month
var tmp = date.day;
date.day = date.month
date.month = tmp;
}
if(date.month <= 12) {
if(date.year < 100) { // for two digit years, determine proper
// four digit year
var today = new Date();
var year = today.getFullYear();
var twoDigitYear = year % 100;
var century = year - twoDigitYear;
if(date.year <= twoDigitYear) {
// assume this date is from our century
date.year = century + date.year;
} else {
// assume this date is from the previous century
date.year = century - 100 + date.year;
}
}
date.month--; // subtract one for JS style
Scholar.debug("DATE: retrieved with algorithms: "+date.toSource());
return date;
}
}
if(!isNaN(jsDate.valueOf())) {
Scholar.debug("DATE: retrieved from JavaScript");
// got a javascript date
date.year = jsDate.getFullYear();
date.month = jsDate.getMonth();
date.day = jsDate.getDate();
return date;
}
// no javascript date. time for cruder things.
// couldn't use algorithms; use regexp
// first, see if we have anything resembling a year
var yearRe = /^(.*)\b((?:circa |around |about |c\.? ?)?[0-9]{1,4}(?: ?B\.? ?C\.?(?: ?E\.?)?| ?C\.? ?E\.?| ?A\.? ?D\.?)|[0-9]{3,4})\b(.*)$/i;
var m = yearRe.exec(string);
var m = _yearRe.exec(string);
if(m) {
date.year = m[2];
date.part = m[1]+m[3];
@ -695,18 +734,23 @@ Scholar.Date = new function(){
// get short month strings from CSL interpreter
var months = CSL.getMonthStrings("short");
if(!_monthRe) {
// then, see if have anything resembling a month anywhere
_monthRe = new RegExp("^(.*)\\b("+months.join("|")+")[^ ]* (.*)$", "i");
}
// then, see if have anything resembling a month anywhere
var monthRe = new RegExp("^(.*)\\b("+months.join("|")+")[^ ]* (.*)$", "i");
var m = monthRe.exec(date.part);
var m = _monthRe.exec(date.part);
if(m) {
date.month = months.indexOf(m[2][0].toUpperCase()+m[2].substr(1).toLowerCase());
date.part = m[1]+m[3];
Scholar.debug("DATE: got month ("+date.month+", "+date.part+")");
// then, see if there's a day
var dayRe = /^(.*)\b([0-9]{1,2})(?:st|nd|rd|th)?\b(.*)$/i;
var m = dayRe.exec(date.part);
if(!_dayRe) {
var daySuffixes = Scholar.getString("date.daySuffixes").replace(/, ?/g, "|");
_dayRe = new RegExp("^(.*)\\b([0-9]{1,2})(?:"+daySuffixes+")?\\b(.*)$", "i");
}
var m = _dayRe.exec(date.part);
if(m) {
date.day = parseInt(m[2], 10);
date.part = m[1]+m[3];
@ -739,7 +783,7 @@ Scholar.Date = new function(){
// get short month strings from CSL interpreter
var months = CSL.getMonthStrings("long");
string += months[date.month];
if(date.day) {
if(date.day != undefined) {
string += " "+date.day+", ";
} else {
string += " ";

4
chrome/chromeFiles/locale/en-US/scholar/scholar.properties
View File

@ -128,4 +128,6 @@ searchConditions.thesisType = Thesis Type
searchConditions.dateModified = Date Modified
exportOptions.exportNotes = Export Notes
exportOptions.exportFileData = Export Files
exportOptions.exportFileData = Export Files
date.daySuffixes = st, nd, rd, th