1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
# foreachLine:
# Iterate over the contents of a file, a line at a time.
# The body script is run for each, with variable varName set to the line
# contents.
#
# Copyright © 2023 Donal K Fellows.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
proc foreachLine {varName filename body} {
upvar 1 $varName line
set f [open $filename "r"]
try {
while {[gets $f line] >= 0} {
uplevel 1 $body
}
} on return {msg opt} {
dict incr opt -level
return -options $opt $msg
} finally {
close $f
}
}
|
