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92 lines
2.2 KiB
92 lines
2.2 KiB
import linecache
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import textwrap
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import sys
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from sys import exit
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class LeavingProgram(Exception):
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pass
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def parse(program):
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cmds = program.split(',')
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splitted_cmds = []
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for cmd in cmds:
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splitted = cmd.split()
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splitted_cmds.append(splitted)
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return splitted_cmds
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def tokenize(s):
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return s.split()
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def repl():
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while True:
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try:
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val = eval(parse(input('> ')))
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if val is not None:
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print(val)
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except LeavingProgram:
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break
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text = None
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line_number = 0
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last_index = 0
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def eval(cmds):
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global text
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global line_number
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global last_index
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global pattern
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for cmd in cmds:
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if cmd == []:
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line_number += 1
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last_index = 0
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elif cmd[0] == 'load':
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contents = open('input.txt').read()
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text = textwrap.wrap(contents, 60, break_long_words=True)
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print('\n'.join(text))
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line_number = 0
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last_index = 0
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elif cmd[0] == 'show':
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print(text[line_number])
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elif cmd[0] == 'under':
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current_line = text[line_number]
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char_number = int(cmd[1]) - 1
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char_list = list(current_line)
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x=range(last_index, char_number + last_index + 1)
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for time in x:
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if time < len(char_list):
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char_list[time] = u'\u21e2'
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last_index += char_number + 1
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joined = ''.join(char_list)
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text[line_number] = joined
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elif cmd[0] == 'over':
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last_index += int(cmd[1])
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elif cmd[0] == 'pattern':
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pattern = text[0:line_number + 1]
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print('\n'.join(pattern))
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elif cmd[0] == 'save':
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pattern = text[0:line_number + 1]
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pattern_file = open('pattern.txt', 'w')
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pattern_file.write('\n'.join(pattern))
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pattern_file.close()
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print('Your pattern has been saved in the pattern.txt file.')
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elif cmd[0] == 'quit':
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print('Come back soon!')
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raise LeavingProgram()
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else:
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joined = ' '.join(cmd)
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print('Did not understand command {}'.format(joined))
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if __name__ == '__main__':
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repl()
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