new

printer.thisone.py

@@ -0,0 +1,134 @@
+#!/usr/bin/env python3
+
+import readings
+from pprint import pprint
+import re, sys, glob
+from escpos import escpos
+from sys import stdin, stderr, stdout
+from time import sleep
+
+import nltk
+from nltk.tokenize import RegexpTokenizer
+tokenizer = RegexpTokenizer(r'\w+') # initialize tokenizer
+
+connected = True
+
+def check_printer_path():
+	printers = glob.glob('/dev/usb/lp*')
+	if printers:
+		return printers[0]
+	else:
+		return None
+
+def char_swap(some_string):
+	swaps = [('–','-'), ('“','"'),('”','"'),('ù','u'), ("’","'"), ('à','a'), ('â','a'),('é','e'),('è','e'),('î','i')]
+	for swap in swaps:
+		some_string = some_string.replace(swap[0], swap[1])
+	return some_string
+
+def insert_linebreaks(string, linelength):
+	count = 0
+	tmp = ''
+	new = ''
+	for x, ch in enumerate(string):
+		tmp_ch = []
+		if ch == ' ':
+			count = count + 1
+			if count < linelength:
+				tmp += ' '
+			else:
+				new += tmp + '\n'
+				tmp = ''
+				count = 0
+		elif x+1 == len(string):
+			new += tmp + ch
+		else:
+			tmp += ch
+			count += 1
+	return new
+
+def printNow(query, results, results_count):
+	if connected == True:
+		printerpath = check_printer_path()
+		try:
+			print_pointer = open(printerpath, 'w') if printerpath else sys.__stdout__
+			print(escpos['reset'], file=print_pointer, flush=True)
+			print(escpos['init_printer'], file=print_pointer, flush=True)
+			print(escpos['margin_left'], file=print_pointer, flush=True)
+			print(escpos['justify_center'], file=print_pointer, flush=True)
+
+			printed = False
+
+			if results_count == None or results_count == 'None':
+				results_count = 0
+			results_count_max = results_count + 5
+			current_count = 0
+			for x, document in results.items():
+				for n, sentence in enumerate(document['matches']):
+					if current_count == results_count:
+						printed = True
+						if results_count < results_count_max:
+							results_count += 1
+							sentence = str(sentence) # Turn Flask Markup object back to normal python string
+							sentence = char_swap(sentence)
+							query = char_swap(query)
+							sentence = sentence.replace('\n', ' ').replace(' ', ' ')
+							pattern = r'[\s\W\_]'+query+r'[\s\W\_\n]|^'+query+'|'+query+'$'
+							match = re.search(pattern, sentence, flags=re.IGNORECASE)
+							if match: 
+								match = match.group()
+							sentence_splitted = re.compile(match).split(sentence) # find the query in the sentence, and split the sentence up
+							for i, part in enumerate(sentence_splitted):
+								if n == 0: # first sentence of this document
+									if i == 0: # start of a new sentence
+										print('', file=print_pointer, flush=True)
+										linebreak = '''    **   
+ ** /**  ** 
+ //** /** ** 
+ **************
+///**//**//**/ 
+ ** /** //** 
+ //  /** // 
+	 //    '''
+										print(linebreak, file=print_pointer, flush=True) # print line break ascii art
+										print('\n', file=print_pointer, flush=True)
+										title = insert_linebreaks(document['name'], 13)
+										print(escpos['largefont'], title, escpos['normalfont'], file=print_pointer, flush=True) # print the document name
+										print('\n', file=print_pointer, flush=True)
+
+								# start of sentence
+								part = insert_linebreaks(part, 35)
+								print(part, file=print_pointer, flush=True) # print current part of sentence
+
+								if i + 1 != len(sentence_splitted): # if this part is not the last one
+									print(escpos['bold'], match, escpos['reset'], file=print_pointer, flush=True) # print query
+
+								# line breaker after each sentence 
+								if i + 1 == len(sentence_splitted):
+									print('\n | \n', file=print_pointer, flush=True)
+									sleep(3)
+					current_count += 1
+
+			print(escpos['paperfeed_1l'], file=print_pointer, flush=True)
+			print(escpos['paperfeed_1l'], file=print_pointer, flush=True)
+			print(escpos['paperfeed_1l'], file=print_pointer, flush=True)
+			sleep(3)
+			print(escpos['papercut'], file=print_pointer, flush=True)
+			print(escpos['reset'], file=print_pointer, flush=True)
+
+			# reset when all results are printed
+			if printed == False:
+				results_count = 0
+				# printNow(query, results, results_count)
+
+			return results_count
+
+		except:
+			e = sys.exc_info()[0]
+			print("Could not print: {}".format(e))
+			return 0
+
+# query = 'noise'
+# results, _, _ = readings.request_results(query)
+# pprint(results)
+# printNow(query, results, 0)