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Diffstat (limited to 'README')
| -rw-r--r-- | README | 42 |
1 files changed, 34 insertions, 8 deletions
@@ -5,11 +5,11 @@ THE Z SHELL (ZSH) Version ------- -This is version 5.7.1 of the shell. This is a stable release. There are -a few visible improvements since 5.6 as well as many bugfixes. +This is version 5.8 of the shell. This is a stable release. There are +a few visible improvements since 5.7 as well as many bugfixes. Note in particular the changes highlighted under "Incompatibilities since -5.6.2" below. See NEWS for more information. +5.7.1" below. See NEWS for more information. Installing Zsh -------------- @@ -30,9 +30,35 @@ Zsh is a shell with lots of features. For a list of some of these, see the file FEATURES, and for the latest changes see NEWS. For more details, see the documentation. -Incompatibilities since 5.6.2 +Incompatibilities since 5.7.1 ----------------------------- +The history expansion !:1:t2 used to be interpreted such that the 2 +was a separate character added after the history expansion. Now +it is an argument to the :t modifier. + +For example + +% echo /my/interesting/path +% echo !:1:t2 + +used to echo "path2", but now echoes "interesting/path". + +The behaviour of :h has similarly changed. + +The behaviour has also changed in forms such as ${foo:t2) and *(:t2), +but in those cases the previous behaviour was not meaningful. + +The vcs_info function VCS_INFO_quilt-dirfind now returns a string value +by setting $REPLY. Previously it printed the value to standard output. +This only affects you if you override that function in your dotfiles. + +The cd and chdir builtins no longer interpret operands like -1 and +2 as +stack entries when POSIX_CD is enabled. + +Incompatibilities between 5.6.2 and 5.7.1 +----------------------------------------- + 1) vcs_info git: The gen-unapplied-string hook receives the patches in order (next to be applied first). This is consistent with the hg backend and with one of two contradictory claims in the documentation @@ -181,7 +207,7 @@ of this change is that variables that should have active ranges need [[ b = [${~cset}] ]] The "~" causes the "-" character to be active. In sh emulation the -"~" is unncessary in this example and double quotes must be used to +"~" is unnecessary in this example and double quotes must be used to suppress the range behaviour of the "-". 2) The first argument to 'repeat' is now evaluated as an arithmetic @@ -194,7 +220,7 @@ leading zeroes and the OCTAL_ZEROES option is set. 3) For some time the shell has had a POSIX_TRAPS option which determines whether the EXIT trap has POSIX behaviour (the trap is only run at shell exit) or traditional zsh behaviour (the trap is run once and discarded -when the enclosing fuction or shell exits, whichever happens first). +when the enclosing function or shell exits, whichever happens first). The use of this option has now been made "sticky" on the EXIT trap --- in other words, the setting of the option at the point where the trap is set now determines whether the trap has POSIX or traditional zsh @@ -321,7 +347,7 @@ can be used with both assoiative arrays and normal arrays. In the unlikely event that you wish to create an array with an entry matching a file whose name consists of one of a range of characters matched as a [...] expression, followed by an equal sign, followed -by arbitrary other charaters, it is now necessary to quote the equals +by arbitrary other characters, it is now necessary to quote the equals sign. Incompatibilites between 5.0.7 and 5.0.8 @@ -338,7 +364,7 @@ or both of the arguments were floating point. Now, the C math library fmod() operator is used to implement the operation where one of the arguments is floating point. For example: -Old behavour: +Old behaviour: % print $(( 5.5 % 2 )) 1 |