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-rw-r--r--[-rwxr-xr-x]tcl.html.markdown12
1 files changed, 8 insertions, 4 deletions
diff --git a/tcl.html.markdown b/tcl.html.markdown
index 198f675e..9ca32f1e 100755..100644
--- a/tcl.html.markdown
+++ b/tcl.html.markdown
@@ -121,7 +121,8 @@ puts lots\nof\n\n\n\n\n\nnewlines
# A word enclosed in braces is not subject to any special interpretation or
-# substitutions, except that a backslash before a brace is not counted when look#ing for the closing brace
+# substitutions, except that a backslash before a brace is not counted when
+# looking for the closing brace
set somevar {
This is a literal $ sign, and this \} escaped
brace remains uninterpreted
@@ -163,7 +164,7 @@ set greeting "Hello, $person(name)"
# A namespace holds commands and variables
namespace eval people {
namespace eval person1 {
- set name Neo
+ variable name Neo
}
}
@@ -189,7 +190,10 @@ set greeting "Hello $people::person1::name"
namespace delete ::
-# Because of name resolution behaviour, it's safer to use the "variable" command to declare or to assign a value to a namespace.
+# Because of name resolution behaviour, it's safer to use the "variable" command to
+# declare or to assign a value to a namespace. If a variable called "name" already
+# exists in the global namespace, using "set" here will assign a value to the global variable
+# instead of creating a new variable in the local namespace.
namespace eval people {
namespace eval person1 {
variable name Neo
@@ -256,7 +260,7 @@ proc greet greeting\ name return\ \"Hello,\ \$name!
proc fold {cmd args} {
set res 0
foreach arg $args {
- set res [cmd $res $arg]
+ set res [$cmd $res $arg]
}
}
fold ::tcl::mathop::* 5 3 3 ;# -> 45