how to avoid leading white spaces

Ian Kelly ian.g.kelly at gmail.com
Mon Jun 6 12:29:15 EDT 2011


On Mon, Jun 6, 2011 at 10:08 AM, Neil Cerutti <neilc at norwich.edu> wrote:
> import re
>
> print("re solution")
> with open("data.txt") as f:
>    for line in f:
>        fixed = re.sub(r"(TABLE='\S+)\s+'", r"\1'", line)
>        print(fixed, end='')
>
> print("non-re solution")
> with open("data.txt") as f:
>    for line in f:
>        i = line.find("TABLE='")
>        if i != -1:
>            begin = line.index("'", i) + 1
>            end = line.index("'", begin)
>            field = line[begin: end].rstrip()
>            print(line[:i] + line[i:begin] + field + line[end:], end='')
>        else:
>            print(line, end='')

print("non-re solution")
with open("data.txt") as f:
    for line in f:
        try:
            start = line.index("TABLE='") + 7
            end = line.index("'", start)
        except ValueError:
            pass
        else:
            line = line[:start] + line[start:end].rstrip() + line[end:]
        print(line, end='')



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