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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 57 |
1 files changed, 56 insertions, 1 deletions
@@ -1,7 +1,62 @@ -Wydawca NEWS -- history of user-visible changes. 2019-07-22 +Wydawca NEWS -- history of user-visible changes. 2019-07-24 See the end of file for copying conditions. Please send Wydawca bug reports to <bug-wydawca@gnu.org.ua>. + +Version 3.0.90 (git) + +* Variable expansion syntax + +This release uses wordsplit v1.0-9-g7eaa3c4. Normal shell like +expansion is allowed. This means that curly braces around variable +names are optional and that the following forms are now allowed: + +${VARIABLE:-WORD} + "Use Default Values". If VARIABLE is unset or null, the + expansion of WORD is substituted. Otherwise, the value of + VARIABLE is substituted. + +${VARIABLE:=WORD} + "Assign Default Values". If VARIABLE is unset or null, the + expansion of WORD is assigned to variable. The value of + VARIABLE is then substituted. + + The assigned value remains in effet during expansion of the + current string. + +${VARIABLE:?WORD} + "Display Error if Null or Unset". If VARIABLE is null or + unset, the expansion of WORD (or a message to that effect if + WORD is not present) is output to the current logging channel. + Otherwise, the value of VARIABLE is substituted. + +${VARIABLE:+WORD} + "Use Alternate Value". If VARIABLE is null or unset, nothing + is substituted, otherwise the expansion of WORD is + substituted. + +* Handling of undefined variables + +Attempt to expand undefined variable causes fatal error. Use one of +the advanced forms described above to handle such cases gracefully. + +* Variable names + +Several variable names have changed. Names that contained dash, +now use underscore instead. These are: + + Old name Use this instead + ------------------- ------------------- + stat:check-failures stat:check_failures + dest-dir dest_dir + source-dir source_dir + user:real-name user:real_name + +* $- is gone + +Trailing newlines are automatically removed from all variable +expansions. Consequently, the $- marker (delete to the end of line) +has been removed. Version 3.0, 2019-07-22 |