48 lines
1.5 KiB
VimL
48 lines
1.5 KiB
VimL
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" Define the function that will be run when the script is executed
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function! FindAndSumCharacters()
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" Initialize the sum to 0
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let sum = 0
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" Iterate over every line in the file
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" Note: The cursor position is not relevant here, since the script
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" will process the entire file
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for line in getline(1, '$')
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" Get the first and second half of the line
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let first_half = line[:len(line)/2]
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let second_half = line[len(line)/2:]
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" Find the character that occurs in both the first and second half
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" of the line.
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" Note: There will be only one such character, since the prompt
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" specified that each line contains only a-zA-Z
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let common_char = ''
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for char in first_half
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if match(second_half, '\C' . char) >= 0
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let common_char = char
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" echo first_half . " - " . second_half . " - char" . common_char
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break
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endif
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endfor
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" Convert the character to a number
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let common_char_num = char2nr(common_char)
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let char_num = 0
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if common_char_num >= char2nr('a') && common_char_num <= char2nr('z')
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let char_num = common_char_num - char2nr('a') + 1
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elseif common_char_num >= char2nr('A') && common_char_num <= char2nr('Z')
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let char_num = common_char_num + 27 - char2nr('A')
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endif
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" echo "char_num " . char_num . "for char " . common_char . " char2nr " . char2nr(common_char)
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" Add the number to the sum
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let sum += char_num
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endfor
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" Output the final sum
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echo sum
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endfunction
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" Run the script when it is loaded
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call FindAndSumCharacters()
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