find docs/ -depth 3 -name '*.md' | xargs grep '(.*/' -l | \ xargs -I{} \ sed -i '' \ -e 's%(/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)\(.md\)\{0\})%(../../\1/\2.md)%g' \ -e 's%(/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)#\([a-zA-Z_-][0-9a-zA-Z_-]*\))%(../../\1/\2.md#\3)%g' \ -e 's%(/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)\(.md\)\{0\})%(../../\1/\2/\3.md)%g' \ -e 's%(/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)/\([^/#).][^/#).]*\)#\([a-zA-Z_-][0-9a-zA-Z_-]*\))%(../../\1/\2/\3.md#\4)%g' \ -e 's%](\([^:.>)#][^:.>)#]*\))%](../../\1.md)%g' \ -e 's%](\([^:.>)#][^:.>)#]*\)#\([^:.>)#][^:.>)#]*\))%](../../\1.md#\2)%g' \ {} Related to https://github.com/flokoe/bash-hackers-wiki/issues/10
1.7 KiB
Word splitting
FIXME to be continued!
Word splitting occurs once any of the following expansions are done (and only then!)
Bash will scan the results of these expansions for special IFS
characters that mark word boundaries. This is only done on results that
are not double-quoted!
Internal Field Separator IFS
The IFS
variable holds the characters that Bash sees as word
boundaries in this step. The default contains the characters
- <space>
- <tab>
- <newline>
These characters are also assumed when IFS is unset. When IFS
is
empty (nullstring), no word splitting is performed at all.
Behaviour
The results of the expansions mentioned above are scanned for
IFS
-characters. If one or more (in a sequence) of them is found,
the expansion result is split at these positions into multiple words.
This doesn't happen when the expansion results were double-quoted.
When a null-string (e.g., something that before expanded to
>>nothing<<) is found, it is removed, unless it is quoted (''
or
""
).
[Again note:]{.underline} Without any expansion beforehand, Bash won't perform word splitting! In this case, the initial token parsing is solely responsible.