Re: Which Diff tool could I use for visually comparing two text files where Word Wrap is possible?
On Tue, 4 Apr 2023 davidson@freevolt.org wrote:
On Tue, 4 Apr 2023 davidson wrote:
[trim]
icdiff will not do that. icdiff is faithful to its sources. I have
determined this by trying it out a little myself, and by examining the
command line options documented in its manual page ("man icdiff").
You could give it different sources:
$ icdiff <( tr '\n' ' ' <file1 ) <( tr '\n' ' ' <file2 )
You can define a function to do the same thing, to save some typing at
future invocations,
Typos ahead:
True.
$ icdiff-flowed () { <( tr '\n' ' ' <file1 ) <( tr '\n' ' ' <file2 ) ; }
Correction:
$ icdiff-flowed () { <( tr '\n' ' ' <"$1" ) <( tr '\n' ' ' <"$2" ) ; }
Yet another correction:
$ icdiff-flowed () { icdiff <( tr '\n' ' ' <"$1" ) <( tr '\n' ' ' <"$2" ) ; }
and then use it like so
$ icdiff-flowed file1 file2 | less -R
And a caveat:
I recall that the files you are comparing are quite large.
The above worked on okay on about 1000 line files with about 50,000
characters.
But I would not use it with significantly larger files.
$ wc -l vinge_1981_true_names.*html # how many lines
3688 vinge_1981_true_names.html
4152 vinge_1981_true_names.parafix.html
$ du -h vinge_1981_true_names.*html
176K vinge_1981_true_names.html
176K vinge_1981_true_names.parafix.html
I think those were too big:
$ icdiff-flowed vinge_1981_true_names.html vinge_1981_true_names.parafix.html >vinge_1981_true_names.icdiff_flowed
Traceback (most recent call last):
File "/usr/bin/icdiff", line 11, in <module>
load_entry_point('icdiff==1.9.5', 'console_scripts', 'icdiff')()
File "/usr/lib/python3/dist-packages/icdiff.py", line 598, in start
diff(options, *args)
File "/usr/lib/python3/dist-packages/icdiff.py", line 635, in diff
diff_files(options, a, b)
File "/usr/lib/python3/dist-packages/icdiff.py", line 764, in diff_files
for line in cd.make_table(
File "/usr/lib/python3/dist-packages/icdiff.py", line 350, in make_table
for left, right in self._generate_table(fromdesc, todesc, diffs):
File "/usr/lib/python3/dist-packages/icdiff.py", line 360, in _generate_table
for i, line in enumerate(diffs):
File "/usr/lib/python3/dist-packages/icdiff.py", line 255, in _collect_lines
for fromdata, todata, flag in diffs:
File "/usr/lib/python3/dist-packages/icdiff.py", line 232, in _line_wrapper
self._split_line(fromlist, fromline, fromtext)
File "/usr/lib/python3/dist-packages/icdiff.py", line 217, in _split_line
self._split_line(data_list, '>', line2)
File "/usr/lib/python3/dist-packages/icdiff.py", line 217, in _split_line
self._split_line(data_list, '>', line2)
File "/usr/lib/python3/dist-packages/icdiff.py", line 217, in _split_line
self._split_line(data_list, '>', line2)
[Previous line repeated 984 more times]
File "/usr/lib/python3/dist-packages/icdiff.py", line 180, in _split_line
if ((self._display_len(text) - (text.count('\0') * 3) <=
File "/usr/lib/python3/dist-packages/icdiff.py", line 163, in _display_len
return sum(width(c) for c in s)
File "/usr/lib/python3/dist-packages/icdiff.py", line 163, in <genexpr>
return sum(width(c) for c in s)
File "/usr/lib/python3/dist-packages/icdiff.py", line 156, in width
if ((isinstance(c, type(u"")) and
RecursionError: maximum recursion depth exceeded while calling a Python object
--
Sometimes it pays to have squirrels in your head running around making
you question everything. -- Clive Robinson
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