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GNU diff is the reference for all of these results.
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Prepare tests:
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$ echo '[alias]' >> $HGRCPATH
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$ echo 'ndiff = diff --nodates' >> $HGRCPATH
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$ hg init
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$ printf 'hello world\ngoodbye world\n' >foo
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$ hg ci -Amfoo -ufoo
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adding foo
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Test added blank lines:
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$ printf '\nhello world\n\ngoodbye world\n\n' >foo
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>>> two diffs showing three added lines <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,5 @@
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+
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hello world
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+
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goodbye world
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+
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$ hg ndiff -b
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,5 @@
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+
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hello world
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+
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goodbye world
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+
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>>> no diffs <<<
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$ hg ndiff -B
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$ hg ndiff -Bb
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Test added horizontal space first on a line():
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$ printf '\t hello world\ngoodbye world\n' >foo
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>>> four diffs showing added space first on the first line <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+ hello world
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goodbye world
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$ hg ndiff -b
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+ hello world
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goodbye world
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$ hg ndiff -B
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+ hello world
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goodbye world
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$ hg ndiff -Bb
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+ hello world
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goodbye world
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Test added horizontal space last on a line:
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$ printf 'hello world\t \ngoodbye world\n' >foo
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>>> two diffs showing space appended to the first line <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+hello world
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goodbye world
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$ hg ndiff -B
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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-hello world
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+hello world
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goodbye world
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>>> no diffs <<<
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$ hg ndiff -b
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$ hg ndiff -Bb
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Test added horizontal space in the middle of a word:
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$ printf 'hello world\ngood bye world\n' >foo
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>>> four diffs showing space inserted into "goodbye" <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+good bye world
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$ hg ndiff -B
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+good bye world
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$ hg ndiff -b
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+good bye world
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$ hg ndiff -Bb
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+good bye world
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Test increased horizontal whitespace amount:
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$ printf 'hello world\ngoodbye\t\t \tworld\n' >foo
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>>> two diffs showing changed whitespace amount in the last line <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+goodbye world
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$ hg ndiff -B
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,2 @@
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hello world
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-goodbye world
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+goodbye world
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>>> no diffs <<<
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$ hg ndiff -b
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$ hg ndiff -Bb
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Test added blank line with horizontal whitespace:
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$ printf 'hello world\n \t\ngoodbye world\n' >foo
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>>> three diffs showing added blank line with horizontal space <<<
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,3 @@
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hello world
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+
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goodbye world
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|
|
|
$ hg ndiff -B
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|
|
diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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|
@@ -1,2 +1,3 @@
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|
|
hello world
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+
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goodbye world
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|
|
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$ hg ndiff -b
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|
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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|
@@ -1,2 +1,3 @@
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|
|
hello world
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|
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+
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goodbye world
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|
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|
|
|
>>> no diffs <<<
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|
|
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$ hg ndiff -Bb
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Test added blank line with other whitespace:
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$ printf 'hello world\n \t\ngoodbye world \n' >foo
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>>> three diffs showing added blank line with other space <<<
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|
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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@@ -1,2 +1,3 @@
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-hello world
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-goodbye world
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+hello world
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+
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+goodbye world
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|
|
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$ hg ndiff -B
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diff -r 540c40a65b78 foo
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--- a/foo
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+++ b/foo
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|
@@ -1,2 +1,3 @@
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|
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-hello world
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-goodbye world
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+hello world
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+
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+goodbye world
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|
|
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$ hg ndiff -b
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|
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diff -r 540c40a65b78 foo
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|
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--- a/foo
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+++ b/foo
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|
@@ -1,2 +1,3 @@
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|
hello world
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+
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goodbye world
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|
|
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>>> no diffs <<<
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|
|
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$ hg ndiff -Bb
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|
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|
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Test whitespace changes:
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|
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$ printf 'helloworld\ngoodbye\tworld \n' >foo
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>>> four diffs showing changed whitespace <<<
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|
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$ hg ndiff
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diff -r 540c40a65b78 foo
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--- a/foo
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|
|
+++ b/foo
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|
@@ -1,2 +1,2 @@
|
|
|
-hello world
|
|
|
-goodbye world
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+helloworld
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|
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+goodbye world
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|
|
|
|
|
$ hg ndiff -B
|
|
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diff -r 540c40a65b78 foo
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|
|
--- a/foo
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|
|
+++ b/foo
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|
@@ -1,2 +1,2 @@
|
|
|
-hello world
|
|
|
-goodbye world
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|
+helloworld
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|
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+goodbye world
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|
|
|
|
|
$ hg ndiff -b
|
|
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diff -r 540c40a65b78 foo
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|
|
--- a/foo
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+++ b/foo
|
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|
@@ -1,2 +1,2 @@
|
|
|
-hello world
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|
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+helloworld
|
|
|
goodbye world
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|
|
|
|
|
$ hg ndiff -Bb
|
|
|
diff -r 540c40a65b78 foo
|
|
|
--- a/foo
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|
|
+++ b/foo
|
|
|
@@ -1,2 +1,2 @@
|
|
|
-hello world
|
|
|
+helloworld
|
|
|
goodbye world
|
|
|
|
|
|
>>> no diffs <<<
|
|
|
|
|
|
$ hg ndiff -w
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|
|
|
|
|
|
|
|
Test whitespace changes and blank lines:
|
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|
|
$ printf 'helloworld\n\n\n\ngoodbye\tworld \n' >foo
|
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|
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>>> five diffs showing changed whitespace <<<
|
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|
|
|
$ hg ndiff
|
|
|
diff -r 540c40a65b78 foo
|
|
|
--- a/foo
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|
+++ b/foo
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|
|
@@ -1,2 +1,5 @@
|
|
|
-hello world
|
|
|
-goodbye world
|
|
|
+helloworld
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|
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+
|
|
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+
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+
|
|
|
+goodbye world
|
|
|
|
|
|
$ hg ndiff -B
|
|
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diff -r 540c40a65b78 foo
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|
|
--- a/foo
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|
|
+++ b/foo
|
|
|
@@ -1,2 +1,5 @@
|
|
|
-hello world
|
|
|
-goodbye world
|
|
|
+helloworld
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|
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+
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+
|
|
|
+
|
|
|
+goodbye world
|
|
|
|
|
|
$ hg ndiff -b
|
|
|
diff -r 540c40a65b78 foo
|
|
|
--- a/foo
|
|
|
+++ b/foo
|
|
|
@@ -1,2 +1,5 @@
|
|
|
-hello world
|
|
|
+helloworld
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
goodbye world
|
|
|
|
|
|
$ hg ndiff -Bb
|
|
|
diff -r 540c40a65b78 foo
|
|
|
--- a/foo
|
|
|
+++ b/foo
|
|
|
@@ -1,2 +1,5 @@
|
|
|
-hello world
|
|
|
+helloworld
|
|
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+
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+
|
|
|
+
|
|
|
goodbye world
|
|
|
|
|
|
$ hg ndiff -w
|
|
|
diff -r 540c40a65b78 foo
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|
|
--- a/foo
|
|
|
+++ b/foo
|
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|
@@ -1,2 +1,5 @@
|
|
|
hello world
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
goodbye world
|
|
|
|
|
|
>>> no diffs <<<
|
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|
|
$ hg ndiff -wB
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