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ca49878470
A regexp pattern with escapes like this is hard to read:
...
set re "~\"\[$\]$decimal = 1\\\\n\"\r\n\\^done"
...
We can make it more readable by spacing out parts (which allows us to also use
the curly braces where that's convenient):
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set re [list "~" {"} {[$]} $decimal " = 1" "\\\\" "n" {"} "\r\n" "\\^" "done"]
set re [join $re ""]
...
or by using string_to_regexp:
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set re [list \
[string_to_regexp {~"$}] \
$decimal \
[string_to_regexp " = 1\\n\"\r\n^done"]]
set re [join $re ""]
...
Note: we have to avoid applying string_to_list to decimal, which is already a
regexp.
Add a proc string_list_to_regexp to make it easy to do both:
...
set re [list \
[string_list_to_regexp ~ {"} $] \
$decimal \
[string_list_to_regexp " = 1" \\ n {"} \r\n ^ done]]
...
Also add a test-case gdb.testsuite/string_to_regexp.exp.
75 lines
2.3 KiB
Plaintext
75 lines
2.3 KiB
Plaintext
# Copyright 2014-2021 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Utility procedures, shared between test suite domains.
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# A helper procedure to retrieve commands to send to GDB before a program
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# is started.
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proc gdb_init_commands {} {
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set commands ""
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if [target_info exists gdb_init_command] {
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lappend commands [target_info gdb_init_command]
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}
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if [target_info exists gdb_init_commands] {
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set commands [concat $commands [target_info gdb_init_commands]]
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}
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return $commands
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}
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# Given an input string, adds backslashes as needed to create a
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# regexp that will match the string.
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proc string_to_regexp {str} {
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set result $str
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regsub -all {[]?*+.|(){}^$\[\\]} $str {\\&} result
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return $result
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}
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# Given a list of strings, adds backslashes as needed to each string to
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# create a regexp that will match the string, and join the result.
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proc string_list_to_regexp { args } {
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set result ""
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foreach arg $args {
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set arg [string_to_regexp $arg]
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append result $arg
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}
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return $result
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}
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# Wrap STR in an ANSI terminal escape sequences -- one to set the
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# style to STYLE, and one to reset the style to the default. The
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# return value is suitable for use as a regular expression.
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# STYLE can either be the payload part of an ANSI terminal sequence,
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# or a shorthand for one of the gdb standard styles: "file",
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# "function", "variable", or "address".
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proc style {str style} {
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switch -exact -- $style {
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title { set style 1 }
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file { set style 32 }
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function { set style 33 }
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highlight { set style 31 }
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variable { set style 36 }
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address { set style 34 }
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metadata { set style 2 }
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version { set style "35;1" }
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none { return $str }
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}
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return "\033\\\[${style}m${str}\033\\\[m"
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}
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