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| author | Steve Bennett <steveb@workware.net.au> | 2023-11-23 08:08:26 +1000 |
|---|---|---|
| committer | Steve Bennett <steveb@workware.net.au> | 2024-02-02 11:22:30 +1000 |
| commit | 172b5c42010d329e84e498e9347c7f09c9b923e2 (patch) | |
| tree | e0e81908c5c84ece8ef581e7037114e3ae4fd380 /jim_tcl.txt | |
| parent | a227bf74d2fc5013fed3d3de025086c586bc950c (diff) | |
| download | jimtcl-172b5c42010d329e84e498e9347c7f09c9b923e2.zip jimtcl-172b5c42010d329e84e498e9347c7f09c9b923e2.tar.gz jimtcl-172b5c42010d329e84e498e9347c7f09c9b923e2.tar.bz2 | |
expr: better error message on nested $()
And explain in the manual that it isn't allowed.
Fixes: #285
Signed-off-by: Steve Bennett <steveb@workware.net.au>
Diffstat (limited to 'jim_tcl.txt')
| -rw-r--r-- | jim_tcl.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/jim_tcl.txt b/jim_tcl.txt index 8684ed9..2c5409e 100644 --- a/jim_tcl.txt +++ b/jim_tcl.txt @@ -2489,6 +2489,23 @@ The following two are identical. set x $(3 * 2 + 1) ---- +However note that the expr shorthand syntax may not be nested in an expression. +This is to prevent the common mistake of writing: + +---- + if {$(1 + 2) == 3) { + ... + } +---- + +rather than: + +---- + if {(1 + 2) == 3) { + ... + } +---- + file ~~~~ +*file* 'option name ?arg\...?'+ |