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From: Cedric Duval <cedricduval@free.fr>
Date: Thu, 27 Feb 2014 12:06:21 +0100
Subject: ifdef
This command allows to test if a feature has been compiled in before
actually attempting to configure / use it.
Syntax:
ifdef <item> <command>
where <item> can be the name of a variable, function, or command.
Examples:
ifdef imap-fetch-mail 'source ~/.mutt/imap_setup'
ifdef trash set trash=~/Mail/trash
* Patch last synced with upstream:
- Date: 2007-02-15
- File:
http://cedricduval.free.fr/mutt/patches/download/patch-1.5.4.cd.ifdef.1
* Changes made:
- Updated to 1.5.13
- Also look for commands
- Use mutt_strcmp in favor of ascii_strncasecmp to compare strings.
Signed-off-by: Matteo F. Vescovi <mfvescovi@gmail.com>
Gbp-Pq: Topic features
---
doc/manual.xml.head | 22 ++++++++++++++++++++
init.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++
init.h | 2 ++
3 files changed, 83 insertions(+)
diff --git a/doc/manual.xml.head b/doc/manual.xml.head
index 0093685..18ae918 100644
--- a/doc/manual.xml.head
+++ b/doc/manual.xml.head
@@ -4378,6 +4378,28 @@ from which to read input (e.g. <literal><command>source</command>
</sect1>
+<sect1 id="ifdef">
+
+<title>Configuring features conditionally</title>
+
+<para>
+Usage: <literal>ifdef</literal> <emphasis>item</emphasis> <emphasis>command</emphasis>
+</para>
+
+<para>
+This command allows to test if a feature has been compiled in, before
+actually executing the command. Item can be either the name of a
+function, variable, or command. Example:
+</para>
+
+<para>
+<screen>
+ifdef imap_keepalive 'source ~/.mutt/imap_setup'
+</screen>
+</para>
+
+</sect1>
+
<sect1 id="unhook">
<title>Removing Hooks</title>
diff --git a/init.c b/init.c
index 4897b9e..cc3cf4b 100644
--- a/init.c
+++ b/init.c
@@ -601,6 +601,65 @@ static void remove_from_list (LIST **l, const char *str)
}
}
+static int parse_ifdef (BUFFER *tmp, BUFFER *s, unsigned long data, BUFFER *err)
+{
+ int i, j, res = 0;
+ BUFFER token;
+
+ memset (&token, 0, sizeof (token));
+ mutt_extract_token (tmp, s, 0);
+
+ /* is the item defined as a variable? */
+ res = (mutt_option_index (tmp->data) != -1);
+
+ /* a function? */
+ if (!res)
+ for (i = 0; !res && i < MENU_MAX; i++)
+ {
+ struct binding_t *b = km_get_table (Menus[i].value);
+
+ if (!b)
+ continue;
+
+ for (j = 0; b[j].name; j++)
+ if (!mutt_strcmp (tmp->data, b[j].name))
+ {
+ res = 1;
+ break;
+ }
+ }
+
+ /* a command? */
+ if (!res)
+ for (i = 0; Commands[i].name; i++)
+ {
+ if (!mutt_strcmp (tmp->data, Commands[i].name))
+ {
+ res = 1;
+ break;
+ }
+ }
+
+ if (!MoreArgs (s))
+ {
+ snprintf (err->data, err->dsize, _("ifdef: too few arguments"));
+ return (-1);
+ }
+ mutt_extract_token (tmp, s, M_TOKEN_SPACE);
+
+ if (res)
+ {
+ if (mutt_parse_rc_line (tmp->data, &token, err) == -1)
+ {
+ mutt_error ("Erreur: %s", err->data);
+ FREE (&token.data);
+ return (-1);
+ }
+ FREE (&token.data);
+ }
+ return 0;
+}
+
static int parse_unignore (BUFFER *buf, BUFFER *s, unsigned long data, BUFFER *err)
{
do
diff --git a/init.h b/init.h
index 395cd3f..80d05ce 100644
--- a/init.h
+++ b/init.h
@@ -3487,6 +3487,7 @@ static int parse_lists (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_unlists (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_alias (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_unalias (BUFFER *, BUFFER *, unsigned long, BUFFER *);
+static int parse_ifdef (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_ignore (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_unignore (BUFFER *, BUFFER *, unsigned long, BUFFER *);
static int parse_source (BUFFER *, BUFFER *, unsigned long, BUFFER *);
@@ -3537,6 +3538,7 @@ const struct command_t Commands[] = {
{ "group", parse_group, M_GROUP },
{ "ungroup", parse_group, M_UNGROUP },
{ "hdr_order", parse_list, UL &HeaderOrderList },
+ { "ifdef", parse_ifdef, 0 },
#ifdef HAVE_ICONV
{ "iconv-hook", mutt_parse_hook, M_ICONVHOOK },
#endif
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