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Original file line number | Original file line | Diff line number | Diff line change |
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(function() { | |||
'use strict'; | |||
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// Parses versions in URL segments like: | |||
// "3", "dev", "release/2.7" or "3.6rc2" | |||
var version_regexs = [ | |||
'(?:\\d)', | |||
'(?:\\d\\.\\d[\\w\\d\\.]*)', | |||
'(?:dev)', | |||
'(?:release/\\d.\\d[\\x\\d\\.]*)']; | |||
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var all_versions = { | |||
'3.8': 'dev (3.8)', | |||
'3.7': '3.7', | |||
'3.6': '3.6', | |||
'3.5': '3.5', | |||
'2.7': '2.7', | |||
}; | |||
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var all_languages = { | |||
'en': 'English', | |||
'fr': 'French', | |||
'ja': 'Japanese', | |||
'ko': 'Korean', | |||
}; | |||
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function build_version_select(current_version, current_release) { | |||
var buf = ['<select>']; | |||
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$.each(all_versions, function(version, title) { | |||
buf.push('<option value="' + version + '"'); | |||
if (version == current_version) | |||
buf.push(' selected="selected">' + current_release + '</option>'); | |||
else | |||
buf.push('>' + title + '</option>'); | |||
}); | |||
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buf.push('</select>'); | |||
return buf.join(''); | |||
} | |||
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function build_language_select(current_language) { | |||
var buf = ['<select>']; | |||
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$.each(all_languages, function(language, title) { | |||
if (language == current_language) | |||
buf.push('<option value="' + language + '" selected="selected">' + | |||
all_languages[current_language] + '</option>'); | |||
else | |||
buf.push('<option value="' + language + '">' + title + '</option>'); | |||
}); | |||
buf.push('</select>'); | |||
return buf.join(''); | |||
} | |||
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function navigate_to_first_existing(urls) { | |||
// Navigate to the first existing URL in urls. | |||
var url = urls.shift(); | |||
if (urls.length == 0) { | |||
window.location.href = url; | |||
return; | |||
} | |||
$.ajax({ | |||
url: url, | |||
success: function() { | |||
window.location.href = url; | |||
}, | |||
error: function() { | |||
navigate_to_first_existing(urls); | |||
} | |||
}); | |||
} | |||
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function on_version_switch() { | |||
var selected_version = $(this).children('option:selected').attr('value') + '/'; | |||
var url = window.location.href; | |||
var current_language = language_segment_from_url(url); | |||
var current_version = version_segment_in_url(url); | |||
var new_url = url.replace('.org/' + current_language + current_version, | |||
'.org/' + current_language + selected_version); | |||
if (new_url != url) { | |||
navigate_to_first_existing([ | |||
new_url, | |||
url.replace('.org/' + current_language + current_version, | |||
'.org/' + selected_version), | |||
'https://docs.python.org/' + current_language + selected_version, | |||
'https://docs.python.org/' + selected_version, | |||
'https://docs.python.org/' | |||
]); | |||
} | |||
} | |||
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function on_language_switch() { | |||
var selected_language = $(this).children('option:selected').attr('value') + '/'; | |||
var url = window.location.href; | |||
var current_language = language_segment_from_url(url); | |||
var current_version = version_segment_in_url(url); | |||
if (selected_language == 'en/') // Special 'default' case for english. | |||
selected_language = ''; | |||
var new_url = url.replace('.org/' + current_language + current_version, | |||
'.org/' + selected_language + current_version); | |||
if (new_url != url) { | |||
navigate_to_first_existing([ | |||
new_url, | |||
'https://docs.python.org/' | |||
]); | |||
} | |||
} | |||
|
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// Returns the path segment of the language as a string, like 'fr/' | |||
// or '' if not found. | |||
function language_segment_from_url(url) { | |||
var language_regexp = '\.org/([a-z]{2}(?:-[a-z]{2})?/)'; | |||
var match = url.match(language_regexp); | |||
if (match !== null) | |||
return match[1]; | |||
return ''; | |||
} | |||
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// Returns the path segment of the version as a string, like '3.6/' | |||
// or '' if not found. | |||
function version_segment_in_url(url) { | |||
var language_segment = '(?:[a-z]{2}(?:-[a-z]{2})?/)'; | |||
var version_segment = '(?:(?:' + version_regexs.join('|') + ')/)'; | |||
var version_regexp = '\\.org/' + language_segment + '?(' + version_segment + ')'; | |||
var match = url.match(version_regexp); | |||
if (match !== null) | |||
return match[1]; | |||
return '' | |||
} | |||
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$(document).ready(function() { | |||
var release = DOCUMENTATION_OPTIONS.VERSION; | |||
var language_segment = language_segment_from_url(window.location.href); | |||
var current_language = language_segment.replace(/\/+$/g, '') || 'en'; | |||
var version = release.substr(0, 3); | |||
var version_select = build_version_select(version, release); | |||
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$('.version_switcher_placeholder').html(version_select); | |||
$('.version_switcher_placeholder select').bind('change', on_version_switch); | |||
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var language_select = build_language_select(current_language); | |||
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$('.language_switcher_placeholder').html(language_select); | |||
$('.language_switcher_placeholder select').bind('change', on_language_switch); | |||
}); | |||
})(); |
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