Chris Wallace KitWallace
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| def mark_ids(node) : | |
| """ mark id attributes as IDs so that getElementById() works | |
| """ | |
| try: | |
| node.setIdAttribute("id") | |
| except: | |
| pass | |
| for child in node.childNodes : |
KitWallace
/ lazy stations
Created
August 21, 2012 07:46
lazy instantiation of objects and object reference by name
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| stations = {} | |
| def station(name) : | |
| try : | |
| station = stations[name] | |
| return station | |
| except : | |
| station_item = menu.item(name) | |
| url = station_item.getAttribute("url") | |
| refresh = station_item.getAttribute("refresh") | |
| station = Weather(name,url,refresh) |
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| # in weather | |
| substitutes = { | |
| "W":"West","N":"North","S":"South","E":"East", | |
| "km/h":"kilometers per hour","C":"Celsius","mph":"miles per hours", | |
| "Mon":"Monday","Tue":"Tuesday","Wed":"Wednesday","Thu":"Thursday","Fri":"Friday","Sat":"Saturday","Sun":"Sunday", | |
| "NNE":"Nor Nor East","NE":"Nor East","ENE":"East Nor East","ESE":"East Sow East", | |
| "SE":"Sow East" ,"SSE" :"Sow Sow East", "SSW":"Sow Sow West","SW":"Sow West","WSW":"West Sow West", | |
| "WNW":"West Nor West","NW":"Nor West","NNW":"Nor Nor West", | |
| "%":"percent" |
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| declare function local:max_depth($node) { | |
| if (exists($node)) | |
| then max($node/*/(local:max_depth(.) + 1)) | |
| else 0 | |
| }; | |
| let $n := <a> dsds<b>dsd<c/>sdd</b><b><c>sds<d/>dsd</c></b></a> | |
| return local:max_depth($n) |
KitWallace
/ invert.xq
Created
August 21, 2012 23:52
invert a stick (a tree wih no branches) Challenge 2
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| declare function local:stick_to_seq($stick) { | |
| if ($stick) | |
| then (name($stick),local:stick_to_seq($stick/*)) | |
| else () | |
| }; | |
| declare function local:seq_to_stick($seq) { | |
| if (exists($seq)) | |
| then element {$seq[1]} {local:seq_to_stick(subsequence($seq,2))} | |
| else () |
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| declare function local:invert($stick) { | |
| let $leaf := $stick//*[last()] | |
| return local:invert1($leaf) | |
| }; | |
| declare function local:invert1($leaf) { | |
| if (exists($leaf)) | |
| then element {name($leaf)} { | |
| local:invert1($leaf/..) | |
| } | |
| else () |
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| import time | |
| ... | |
| def __init__(self,id,url,rate) : | |
| self.url = url | |
| self.id = id | |
| self.ts = 0 | |
| self.rate = int(rate) | |
| self.refresh() |
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| def baroReader(interval_secs) : | |
| """ dummy reader until the chip is added to the RPi | |
| generator | |
| """ | |
| station = Weather("horfield","http://www.martynhicks.co.uk/weather/clientraw.txt") | |
| while True : | |
| station.refresh() | |
| if station.baro is None : | |
| time.sleep(10) | |
| else : |
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| def baroSmoother(interval_secs,smooth_secs) : | |
| baro = baroReader(interval_secs) | |
| max = int(smooth_secs / interval_secs) | |
| while True: | |
| total_baro = 0 | |
| for i in range(max) : | |
| reading = baro.next() | |
| total_baro += reading | |
| average_baro = round(total_baro / max, 2) | |
| yield(average_baro) |
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| def monitor(self) : | |
| reader = baroSmoother(self.interval_secs,self.smooth_secs) | |
| for self.baro in reader : | |
| self.history.add(self.baro) | |
| self.updateTrend() | |
| self.put() |