From patchwork Sun Sep 29 20:54:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philippe Waroquiers X-Patchwork-Id: 34718 Received: (qmail 98939 invoked by alias); 29 Sep 2019 20:54:48 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 98876 invoked by uid 89); 29 Sep 2019 20:54:47 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-22.2 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_LOW, SPF_PASS autolearn=ham version=3.3.1 spammy=junk, interests X-HELO: mailsec114.isp.belgacom.be Received: from mailsec114.isp.belgacom.be (HELO mailsec114.isp.belgacom.be) (195.238.20.110) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sun, 29 Sep 2019 20:54:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=skynet.be; i=@skynet.be; q=dns/txt; s=securemail; t=1569790484; x=1601326484; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+PKnJXdK0I7uLbTmMIAhQRePRN/lc9dE35lFaihuQB8=; b=XG7KpgstLJbKxSArskzyE/38sze0XD0LYtjSqukJD83dQ1RKiuAy4qhn gSDsz5KmUZg+DpUnXACEceUzIAk6IA==; Received: from 255.38-242-81.adsl-dyn.isp.belgacom.be (HELO md.home) ([81.242.38.255]) by relay.skynet.be with ESMTP/TLS/DHE-RSA-AES128-GCM-SHA256; 29 Sep 2019 22:54:32 +0200 From: Philippe Waroquiers To: gdb-patches@sourceware.org Cc: Philippe Waroquiers Subject: [RFA 3/4] Allow . character as part of command names. Date: Sun, 29 Sep 2019 22:54:26 +0200 Message-Id: <20190929205427.1319-4-philippe.waroquiers@skynet.be> In-Reply-To: <20190929205427.1319-1-philippe.waroquiers@skynet.be> References: <20190929205427.1319-1-philippe.waroquiers@skynet.be> MIME-Version: 1.0 X-IsSubscribed: yes gdb/ChangeLog YYYY-MM-DD Philippe Waroquiers * command.h (valid_cmd_char_p): Declare. * cli/cli-decode.c (valid_cmd_char_p): New function factorizing the check of valid command char. (find_command_name_length, valid_user_defined_cmd_name_p): Use valid_cmd_char_p. * cli/cli-script.c (validate_comname): Likewise. * completer.c (gdb_completer_command_word_break_characters): Do not remove . from the word break char, update comments. (complete_line_internal_1): Use valid_cmd_char_p. * guile/scm-cmd.c (gdbscm_parse_command_name): Likewise. * python/py-cmd.c (gdbpy_parse_command_name): Likewise. gdb/testsuite/ChangeLog YYYY-MM-DD Philippe Waroquiers * gdb.base/define.exp: Test . in command names. * gdb.base/setshow.exp: Update test, as . is now part of command name. --- gdb/cli/cli-decode.c | 24 ++++++++++++++---------- gdb/cli/cli-script.c | 2 +- gdb/command.h | 8 ++++++++ gdb/completer.c | 10 +++++----- gdb/guile/scm-cmd.c | 5 +---- gdb/python/py-cmd.c | 5 +---- gdb/testsuite/gdb.base/define.exp | 25 +++++++++++++++++++++++++ gdb/testsuite/gdb.base/setshow.exp | 2 +- 8 files changed, 56 insertions(+), 25 deletions(-) diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c index debffbc0f7..1fdc9835d2 100644 --- a/gdb/cli/cli-decode.c +++ b/gdb/cli/cli-decode.c @@ -1372,7 +1372,7 @@ find_command_name_length (const char *text) if (*p == '!' || *p == '|') return 1; - while (isalnum (*p) || *p == '-' || *p == '_' + while (valid_cmd_char_p (*p) /* Characters used by TUI specific commands. */ || *p == '+' || *p == '<' || *p == '>' || *p == '$') p++; @@ -1380,9 +1380,18 @@ find_command_name_length (const char *text) return p - text; } -/* Return TRUE if NAME is a valid user-defined command name. - This is a stricter subset of all gdb commands, - see find_command_name_length. */ +/* See command.h. */ + +bool +valid_cmd_char_p (int c) +{ + /* Alas "42" is a legitimate user-defined command. + In the interests of not breaking anything we preserve that. */ + + return isalnum (c) || c == '-' || c == '_' || c == '.'; +} + +/* See command.h. */ bool valid_user_defined_cmd_name_p (const char *name) @@ -1392,14 +1401,9 @@ valid_user_defined_cmd_name_p (const char *name) if (*name == '\0') return false; - /* Alas "42" is a legitimate user-defined command. - In the interests of not breaking anything we preserve that. */ - for (p = name; *p != '\0'; ++p) { - if (isalnum (*p) - || *p == '-' - || *p == '_') + if (valid_cmd_char_p (*p)) ; /* Ok. */ else return false; diff --git a/gdb/cli/cli-script.c b/gdb/cli/cli-script.c index c70c0e4fb3..8481aab7d0 100644 --- a/gdb/cli/cli-script.c +++ b/gdb/cli/cli-script.c @@ -1340,7 +1340,7 @@ validate_comname (const char **comname) p = *comname; while (*p) { - if (!isalnum (*p) && *p != '-' && *p != '_') + if (!valid_cmd_char_p (*p)) error (_("Junk in argument list: \"%s\""), p); p++; } diff --git a/gdb/command.h b/gdb/command.h index cf190ef649..5384a0a674 100644 --- a/gdb/command.h +++ b/gdb/command.h @@ -133,8 +133,16 @@ extern struct cli_suppress_notification cli_suppress_notification; /* API to the manipulation of command lists. */ +/* Return TRUE if NAME is a valid user-defined command name. + This is a stricter subset of all gdb commands, + see find_command_name_length. */ + extern bool valid_user_defined_cmd_name_p (const char *name); +/* Return TRUE if C is a valid command character. */ + +extern bool valid_cmd_char_p (int c); + /* Const-correct variant of the above. */ extern struct cmd_list_element *add_cmd (const char *, enum command_class, diff --git a/gdb/completer.c b/gdb/completer.c index 07facfb012..c7ba322805 100644 --- a/gdb/completer.c +++ b/gdb/completer.c @@ -102,13 +102,13 @@ enum explicit_location_match_type /* Variables which are necessary for fancy command line editing. */ -/* When completing on command names, we remove '-' from the list of +/* When completing on command names, we remove '-' and '.' from the list of word break characters, since we use it in command names. If the readline library sees one in any of the current completion strings, it thinks that the string needs to be quoted and automatically supplies a leading quote. */ static const char gdb_completer_command_word_break_characters[] = -" \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,"; +" \t\n!@#$%^&*()+=|~`}{[]\"';:?/><,"; /* When completing on file names, we remove from the list of word break characters any characters that are commonly used in file @@ -1301,7 +1301,7 @@ complete_line_internal_1 (completion_tracker &tracker, on command strings (as opposed to strings supplied by the individual command completer functions, which can be any string) then we will switch to the special word break set for command - strings, which leaves out the '-' character used in some + strings, which leaves out the '-' and '.' character used in some commands. */ set_rl_completer_word_break_characters (current_language->la_word_break_characters()); @@ -1364,7 +1364,7 @@ complete_line_internal_1 (completion_tracker &tracker, /* lookup_cmd_1 advances p up to the first ambiguous thing, but doesn't advance over that thing itself. Do so now. */ q = p; - while (*q && (isalnum (*q) || *q == '-' || *q == '_')) + while (valid_cmd_char_p (*q)) ++q; if (q != tmp_command + point) { @@ -1452,7 +1452,7 @@ complete_line_internal_1 (completion_tracker &tracker, q = p; while (q > tmp_command) { - if (isalnum (q[-1]) || q[-1] == '-' || q[-1] == '_') + if (valid_cmd_char_p (q[-1])) --q; else break; diff --git a/gdb/guile/scm-cmd.c b/gdb/guile/scm-cmd.c index f2fa40e453..3b8195b8b4 100644 --- a/gdb/guile/scm-cmd.c +++ b/gdb/guile/scm-cmd.c @@ -492,10 +492,7 @@ gdbscm_parse_command_name (const char *name, lastchar = i; /* Find first character of the final word. */ - for (; i > 0 && (isalnum (name[i - 1]) - || name[i - 1] == '-' - || name[i - 1] == '_'); - --i) + for (; i > 0 && valid_cmd_char_p (name[i - 1]); --i) ; result = (char *) xmalloc (lastchar - i + 2); memcpy (result, &name[i], lastchar - i + 1); diff --git a/gdb/python/py-cmd.c b/gdb/python/py-cmd.c index 87d1888c52..daeca37b09 100644 --- a/gdb/python/py-cmd.c +++ b/gdb/python/py-cmd.c @@ -375,10 +375,7 @@ gdbpy_parse_command_name (const char *name, lastchar = i; /* Find first character of the final word. */ - for (; i > 0 && (isalnum (name[i - 1]) - || name[i - 1] == '-' - || name[i - 1] == '_'); - --i) + for (; i > 0 && valid_cmd_char_p (name[i - 1]); --i) ; result = (char *) xmalloc (lastchar - i + 2); memcpy (result, &name[i], lastchar - i + 1); diff --git a/gdb/testsuite/gdb.base/define.exp b/gdb/testsuite/gdb.base/define.exp index d7d4fd03ba..b5183eceec 100644 --- a/gdb/testsuite/gdb.base/define.exp +++ b/gdb/testsuite/gdb.base/define.exp @@ -130,6 +130,31 @@ gdb_test "help nextwhere" \ " A next command that first shows you where you're stepping from.*" \ "preserve whitespace in help string" +# Verify that GDB allows a user to use . in a command name. +# +gdb_test_multiple "define dot.command" "define user command: dot.command" { + -re "Type commands for definition of \"dot.command\".\r\nEnd with a line saying just \"end\".\r\n>$" { + gdb_test "echo dot command\\n\nend" "" \ + "define user command: dot.command" + } +} + +# Verify that dot.command works. +# +gdb_test "dot.command" \ + "dot command" \ + "full name dot.command" +gdb_test "dot" \ + "dot command" \ + "partial name dot" +gdb_test "dot." \ + "dot command" \ + "partial name dot." +gdb_test "dot.c" \ + "dot command" \ + "partial name dot.c" + + # Verify that the command parser doesn't require a space after an 'if' # command in a user defined function. # diff --git a/gdb/testsuite/gdb.base/setshow.exp b/gdb/testsuite/gdb.base/setshow.exp index d807d75a66..7a2de9fce3 100644 --- a/gdb/testsuite/gdb.base/setshow.exp +++ b/gdb/testsuite/gdb.base/setshow.exp @@ -287,7 +287,7 @@ gdb_test_no_output "set verbose off" "set verbose off" gdb_test "show verbose" "Verbosity is off..*" "show verbose (off)" #test argument must be preceded by space foreach x {"history file" "solib-search-path" "data-directory"} { - foreach y {"/home/" "." "~/home" "=home"} { + foreach y {"/home/" "~/home" "=home"} { gdb_test "set $x$y" "Argument must be preceded by space." \ "$x is not set to $y" }