core: commands that take an index now use integer expressions

This means that instead of just [list index 2+1], we can now do
[list index end-$n*2+1]

This applies to:

    lindex, linsert, lreplace, lset, lrange, lsort, regexp, regsub
    string index,first,last,range

Also add tests for both direct integer expressions and indexes.

Still needs doc update.

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 3 insertions, 3 deletions

diff --git a/tests/string.test b/tests/string.test
index 3624565..086e470 100644
--- a/tests/string.test
+++ b/tests/string.test
@@ -837,10 +837,10 @@ test string-14.12 {string replace} {
 } {}
 test string-14.13 {string replace} {
     list [catch {string replace abc abc 1} msg] $msg
-} {1 {bad index "abc": must be integer?[+-]integer? or end?[+-]integer?}}
+} {1 {bad index "abc": must be intexpr or end?[+-]intexpr?}}
 test string-14.14 {string replace} {
     list [catch {string replace abc 1 eof} msg] $msg
-} {1 {bad index "eof": must be integer?[+-]integer? or end?[+-]integer?}}
+} {1 {bad index "eof": must be intexpr or end?[+-]intexpr?}}
 test string-14.15 {string replace} {
     string replace abcdefghijklmnop end-10 end-2 NEW
 } {abcdeNEWop}
@@ -1029,6 +1029,6 @@ test string-24.12 {string byterange, full range} {
 } abcdef
 test string-24.13 {string byterange, invalid range} -body {
     string byterange abcdef foo bar
-} -returnCodes error -result {bad index "foo": must be integer?[+-]integer? or end?[+-]integer?}
+} -returnCodes error -result {bad index "foo": must be intexpr or end?[+-]intexpr?}
 
 testreport