Merge 8.7. Tweak "tclreg" directory/library name and tclLoad.c, such that the entry point of the "dde" and "registry" extensions can be guessed correctly

2 files changed, 11 insertions, 2 deletions

diff --git a/doc/expr.n b/doc/expr.n
index 69f6399..2c2742c 100644
--- a/doc/expr.n
+++ b/doc/expr.n
@@ -41,6 +41,12 @@ When an expression evaluates to an integer, the value is the decimal form of
 the integer, and when an expression evaluates to a floating-point number, the
 value is the form produced by the \fB%g\fR format specifier of Tcl's
 \fBformat\fR command.
+.PP
+.VS "TIP 582"
+You can use \fB#\fR at any point in the expression (except inside double
+quotes or braces) to start a comment. Comments last to the end of the line or
+the end of the expression, whichever comes first.
+.VE "TIP 582"
 .SS OPERANDS
 .PP
 An expression consists of a combination of operands, operators, parentheses and
@@ -487,7 +493,9 @@ value of true:
 .PP
 .CS
 set isTrue [\fBexpr\fR {
+    # Does the environment variable exist, and...
     [info exists ::env(SOME_ENV_VAR)] &&
+    # ...does it contain a proper true value?
     [string is true -strict $::env(SOME_ENV_VAR)]
 }]
 .CE
diff --git a/doc/load.n b/doc/load.n
index b592bb3..f98a053 100644
--- a/doc/load.n
+++ b/doc/load.n
@@ -89,9 +89,10 @@ Tcl tries to guess the name of the package.
 This may be done differently on different platforms.
 The default guess, which is used on most UNIX platforms, is to
 take the last element of \fIfileName\fR, strip off the first
-three characters if they are \fBlib\fR, and use any following
+three characters if they are \fBlib\fR, then strip off the next
+three characters if they are \fBtcl\fR, and use any following
 alphabetic and underline characters as the module name.
-For example, the command \fBload libxyz4.2.so\fR uses the module
+For example, the command \fBload libtclxyz4.2.so\fR uses the module
 name \fBxyz\fR and the command \fBload bin/last.so {}\fR uses the
 module name \fBlast\fR.
 .PP