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command_parse.c
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command_parse.c
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/**
* @file
* Functions to parse commands in a config file
*
* @authors
* Copyright (C) 1996-2002,2007,2010,2012-2013,2016 Michael R. Elkins <me@mutt.org>
* Copyright (C) 2004 g10 Code GmbH
*
* @copyright
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @page command_parse Functions to parse commands in a config file
*
* Functions to parse commands in a config file
*/
#include "config.h"
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "gui/lib.h"
#include "mutt.h"
#include "command_parse.h"
#include "alias.h"
#include "context.h"
#include "globals.h"
#include "init.h"
#include "keymap.h"
#include "monitor.h"
#include "mutt_commands.h"
#include "mutt_logging.h"
#include "mutt_menu.h"
#include "mutt_parse.h"
#include "muttlib.h"
#include "mx.h"
#include "myvar.h"
#include "options.h"
#include "sidebar.h"
#include "version.h"
#include "imap/lib.h"
#ifdef ENABLE_NLS
#include <libintl.h>
#endif
/* LIFO designed to contain the list of config files that have been sourced and
* avoid cyclic sourcing */
static struct ListHead MuttrcStack = STAILQ_HEAD_INITIALIZER(MuttrcStack);
#define MAX_ERRS 128
/**
* enum GroupState - Type of email address group
*/
enum GroupState
{
GS_NONE, ///< Group is missing an argument
GS_RX, ///< Entry is a regular expression
GS_ADDR, ///< Entry is an address
};
/**
* parse_unreplace_list - Remove a string replacement rule - Implements Command::parse()
*/
static enum CommandResult parse_unreplace_list(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct ReplaceList *list = (struct ReplaceList *) data;
/* First token is a regex. */
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "unsubjectrx");
return MUTT_CMD_WARNING;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
/* "*" is a special case. */
if (mutt_str_strcmp(buf->data, "*") == 0)
{
mutt_replacelist_free(list);
return MUTT_CMD_SUCCESS;
}
mutt_replacelist_remove(list, buf->data);
return MUTT_CMD_SUCCESS;
}
/**
* attachments_clean - always wise to do what someone else did before
*/
static void attachments_clean(void)
{
if (!Context || !Context->mailbox)
return;
struct Mailbox *m = Context->mailbox;
for (int i = 0; i < m->msg_count; i++)
{
struct Email *e = m->emails[i];
if (!e)
break;
e->attach_valid = false;
}
}
/**
* parse_unattach_list - Parse the "unattachments" command
* @param buf Buffer for temporary storage
* @param s Buffer containing the unattachments command
* @param head List of AttachMatch to remove from
* @param err Buffer for error messages
* @retval #MUTT_CMD_SUCCESS Always
*/
static enum CommandResult parse_unattach_list(struct Buffer *buf, struct Buffer *s,
struct ListHead *head, struct Buffer *err)
{
struct AttachMatch *a = NULL;
char *tmp = NULL;
char *minor = NULL;
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
FREE(&tmp);
if (mutt_str_strcasecmp(buf->data, "any") == 0)
tmp = mutt_str_strdup("*/.*");
else if (mutt_str_strcasecmp(buf->data, "none") == 0)
tmp = mutt_str_strdup("cheap_hack/this_should_never_match");
else
tmp = mutt_str_strdup(buf->data);
minor = strchr(tmp, '/');
if (minor)
{
*minor = '\0';
minor++;
}
else
{
minor = "unknown";
}
const enum ContentType major = mutt_check_mime_type(tmp);
struct ListNode *np = NULL, *tmp2 = NULL;
STAILQ_FOREACH_SAFE(np, head, entries, tmp2)
{
a = (struct AttachMatch *) np->data;
mutt_debug(LL_DEBUG3, "check %s/%s [%d] : %s/%s [%d]\n", a->major,
a->minor, a->major_int, tmp, minor, major);
if ((a->major_int == major) && (mutt_str_strcasecmp(minor, a->minor) == 0))
{
mutt_debug(LL_DEBUG3, "removed %s/%s [%d]\n", a->major, a->minor, a->major_int);
regfree(&a->minor_regex);
FREE(&a->major);
STAILQ_REMOVE(head, np, ListNode, entries);
FREE(&np->data);
FREE(&np);
}
}
} while (MoreArgs(s));
FREE(&tmp);
attachments_clean();
return MUTT_CMD_SUCCESS;
}
/**
* clear_subject_mods - Clear out all modified email subjects
*/
static void clear_subject_mods(void)
{
if (!Context || !Context->mailbox)
return;
struct Mailbox *m = Context->mailbox;
for (int i = 0; i < m->msg_count; i++)
{
struct Email *e = m->emails[i];
if (!e || !e->env)
continue;
FREE(&e->env->disp_subj);
}
}
/**
* parse_replace_list - Parse a string replacement rule - Implements Command::parse()
*/
static enum CommandResult parse_replace_list(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct ReplaceList *list = (struct ReplaceList *) data;
struct Buffer templ = mutt_buffer_make(0);
/* First token is a regex. */
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "subjectrx");
return MUTT_CMD_WARNING;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
/* Second token is a replacement template */
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "subjectrx");
return MUTT_CMD_WARNING;
}
mutt_extract_token(&templ, s, MUTT_TOKEN_NO_FLAGS);
if (mutt_replacelist_add(list, buf->data, templ.data, err) != 0)
{
FREE(&templ.data);
return MUTT_CMD_ERROR;
}
FREE(&templ.data);
return MUTT_CMD_SUCCESS;
}
/**
* is_function - Is the argument a neomutt function?
* @param name Command name to be searched for
* @retval true Function found
* @retval false Function not found
*/
static bool is_function(const char *name)
{
for (enum MenuType i = 0; i < MENU_MAX; i++)
{
const struct Binding *b = km_get_table(Menus[i].value);
if (!b)
continue;
for (int j = 0; b[j].name; j++)
if (mutt_str_strcmp(name, b[j].name) == 0)
return true;
}
return false;
}
/**
* mutt_attachmatch_new - Create a new AttachMatch
* @retval ptr New AttachMatch
*/
static struct AttachMatch *mutt_attachmatch_new(void)
{
return mutt_mem_calloc(1, sizeof(struct AttachMatch));
}
/**
* parse_attach_list - Parse the "attachments" command
* @param buf Buffer for temporary storage
* @param s Buffer containing the attachments command
* @param head List of AttachMatch to add to
* @param err Buffer for error messages
* @retval #CommandResult Result e.g. #MUTT_CMD_SUCCESS
*/
static enum CommandResult parse_attach_list(struct Buffer *buf, struct Buffer *s,
struct ListHead *head, struct Buffer *err)
{
struct AttachMatch *a = NULL;
char *p = NULL;
char *tmpminor = NULL;
size_t len;
int ret;
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (!buf->data || (*buf->data == '\0'))
continue;
a = mutt_attachmatch_new();
/* some cheap hacks that I expect to remove */
if (mutt_str_strcasecmp(buf->data, "any") == 0)
a->major = mutt_str_strdup("*/.*");
else if (mutt_str_strcasecmp(buf->data, "none") == 0)
a->major = mutt_str_strdup("cheap_hack/this_should_never_match");
else
a->major = mutt_str_strdup(buf->data);
p = strchr(a->major, '/');
if (p)
{
*p = '\0';
p++;
a->minor = p;
}
else
{
a->minor = "unknown";
}
len = strlen(a->minor);
tmpminor = mutt_mem_malloc(len + 3);
strcpy(&tmpminor[1], a->minor);
tmpminor[0] = '^';
tmpminor[len + 1] = '$';
tmpminor[len + 2] = '\0';
a->major_int = mutt_check_mime_type(a->major);
ret = REG_COMP(&a->minor_regex, tmpminor, REG_ICASE);
FREE(&tmpminor);
if (ret != 0)
{
regerror(ret, &a->minor_regex, err->data, err->dsize);
FREE(&a->major);
FREE(&a);
return MUTT_CMD_ERROR;
}
mutt_debug(LL_DEBUG3, "added %s/%s [%d]\n", a->major, a->minor, a->major_int);
mutt_list_insert_tail(head, (char *) a);
} while (MoreArgs(s));
attachments_clean();
return MUTT_CMD_SUCCESS;
}
/**
* print_attach_list - Print a list of attachments
* @param h List of attachments
* @param op Operation, e.g. '+', '-'
* @param name Attached/Inline, 'A', 'I'
* @retval 0 Always
*/
static int print_attach_list(struct ListHead *h, const char op, const char *name)
{
struct ListNode *np = NULL;
STAILQ_FOREACH(np, h, entries)
{
printf("attachments %c%s %s/%s\n", op, name,
((struct AttachMatch *) np->data)->major,
((struct AttachMatch *) np->data)->minor);
}
return 0;
}
/**
* alternates_clean - Clear the recipient valid flag of all emails
*/
static void alternates_clean(void)
{
if (!Context || !Context->mailbox)
return;
struct Mailbox *m = Context->mailbox;
for (int i = 0; i < m->msg_count; i++)
{
struct Email *e = m->emails[i];
if (!e)
break;
e->recip_valid = false;
}
}
/**
* parse_grouplist - Parse a group context
* @param gl GroupList to add to
* @param buf Temporary Buffer space
* @param s Buffer containing string to be parsed
* @param err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*/
static int parse_grouplist(struct GroupList *gl, struct Buffer *buf,
struct Buffer *s, struct Buffer *err)
{
while (mutt_str_strcasecmp(buf->data, "-group") == 0)
{
if (!MoreArgs(s))
{
mutt_buffer_strcpy(err, _("-group: no group name"));
return -1;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
mutt_grouplist_add(gl, mutt_pattern_group(buf->data));
if (!MoreArgs(s))
{
mutt_buffer_strcpy(err, _("out of arguments"));
return -1;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
}
return 0;
}
/**
* source_rc - Read an initialization file
* @param rcfile_path Path to initialization file
* @param err Buffer for error messages
* @retval <0 if neomutt should pause to let the user know
*/
int source_rc(const char *rcfile_path, struct Buffer *err)
{
int lineno = 0, rc = 0, warnings = 0;
enum CommandResult line_rc;
struct Buffer *token = NULL, *linebuf = NULL;
char *line = NULL;
char *currentline = NULL;
char rcfile[PATH_MAX];
size_t linelen = 0;
pid_t pid;
mutt_str_strfcpy(rcfile, rcfile_path, sizeof(rcfile));
size_t rcfilelen = mutt_str_strlen(rcfile);
if (rcfilelen == 0)
return -1;
bool ispipe = rcfile[rcfilelen - 1] == '|';
if (!ispipe)
{
struct ListNode *np = STAILQ_FIRST(&MuttrcStack);
if (!mutt_path_to_absolute(rcfile, np ? NONULL(np->data) : ""))
{
mutt_error(_("Error: Can't build path of '%s'"), rcfile_path);
return -1;
}
STAILQ_FOREACH(np, &MuttrcStack, entries)
{
if (mutt_str_strcmp(np->data, rcfile) == 0)
{
break;
}
}
if (np)
{
mutt_error(_("Error: Cyclic sourcing of configuration file '%s'"), rcfile);
return -1;
}
mutt_list_insert_head(&MuttrcStack, mutt_str_strdup(rcfile));
}
mutt_debug(LL_DEBUG2, "Reading configuration file '%s'\n", rcfile);
FILE *fp = mutt_open_read(rcfile, &pid);
if (!fp)
{
mutt_buffer_printf(err, "%s: %s", rcfile, strerror(errno));
return -1;
}
token = mutt_buffer_pool_get();
linebuf = mutt_buffer_pool_get();
while ((line = mutt_file_read_line(line, &linelen, fp, &lineno, MUTT_CONT)) != NULL)
{
const bool conv = C_ConfigCharset && C_Charset;
if (conv)
{
currentline = mutt_str_strdup(line);
if (!currentline)
continue;
mutt_ch_convert_string(¤tline, C_ConfigCharset, C_Charset, 0);
}
else
currentline = line;
mutt_buffer_strcpy(linebuf, currentline);
mutt_buffer_reset(err);
line_rc = mutt_parse_rc_buffer(linebuf, token, err);
if (line_rc == MUTT_CMD_ERROR)
{
mutt_error(_("Error in %s, line %d: %s"), rcfile, lineno, err->data);
if (--rc < -MAX_ERRS)
{
if (conv)
FREE(¤tline);
break;
}
}
else if (line_rc == MUTT_CMD_WARNING)
{
/* Warning */
mutt_warning(_("Warning in %s, line %d: %s"), rcfile, lineno, err->data);
warnings++;
}
else if (line_rc == MUTT_CMD_FINISH)
{
break; /* Found "finish" command */
}
else
{
if (rc < 0)
rc = -1;
}
if (conv)
FREE(¤tline);
}
FREE(&line);
mutt_file_fclose(&fp);
if (pid != -1)
filter_wait(pid);
if (rc)
{
/* the neomuttrc source keyword */
mutt_buffer_reset(err);
mutt_buffer_printf(err, (rc >= -MAX_ERRS) ? _("source: errors in %s") : _("source: reading aborted due to too many errors in %s"),
rcfile);
rc = -1;
}
else
{
/* Don't alias errors with warnings */
if (warnings > 0)
{
mutt_buffer_printf(err, ngettext("source: %d warning in %s", "source: %d warnings in %s", warnings),
warnings, rcfile);
rc = -2;
}
}
if (!ispipe && !STAILQ_EMPTY(&MuttrcStack))
{
struct ListNode *np = STAILQ_FIRST(&MuttrcStack);
STAILQ_REMOVE_HEAD(&MuttrcStack, entries);
FREE(&np->data);
FREE(&np);
}
mutt_buffer_pool_release(&token);
mutt_buffer_pool_release(&linebuf);
return rc;
}
/**
* parse_alias - Parse the 'alias' command - Implements Command::parse()
*/
enum CommandResult parse_alias(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct Alias *tmp = NULL;
char *estr = NULL;
struct GroupList gl = STAILQ_HEAD_INITIALIZER(gl);
if (!MoreArgs(s))
{
mutt_buffer_strcpy(err, _("alias: no address"));
return MUTT_CMD_WARNING;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (parse_grouplist(&gl, buf, s, err) == -1)
return MUTT_CMD_ERROR;
/* check to see if an alias with this name already exists */
TAILQ_FOREACH(tmp, &Aliases, entries)
{
if (mutt_str_strcasecmp(tmp->name, buf->data) == 0)
break;
}
if (tmp)
{
mutt_alias_delete_reverse(tmp);
/* override the previous value */
mutt_addrlist_clear(&tmp->addr);
if (CurrentMenu == MENU_ALIAS)
mutt_menu_set_current_redraw_full();
}
else
{
/* create a new alias */
tmp = mutt_alias_new();
tmp->name = mutt_str_strdup(buf->data);
TAILQ_INSERT_TAIL(&Aliases, tmp, entries);
/* give the main addressbook code a chance */
if (CurrentMenu == MENU_ALIAS)
OptMenuCaller = true;
}
mutt_extract_token(buf, s, MUTT_TOKEN_QUOTE | MUTT_TOKEN_SPACE | MUTT_TOKEN_SEMICOLON);
mutt_debug(LL_DEBUG5, "Second token is '%s'\n", buf->data);
mutt_addrlist_parse2(&tmp->addr, buf->data);
if (mutt_addrlist_to_intl(&tmp->addr, &estr))
{
mutt_buffer_printf(err, _("Warning: Bad IDN '%s' in alias '%s'"), estr, tmp->name);
FREE(&estr);
goto bail;
}
mutt_grouplist_add_addrlist(&gl, &tmp->addr);
mutt_alias_add_reverse(tmp);
if (C_DebugLevel > LL_DEBUG4)
{
/* A group is terminated with an empty address, so check a->mailbox */
struct Address *a = NULL;
TAILQ_FOREACH(a, &tmp->addr, entries)
{
if (!a->mailbox)
break;
if (a->group)
mutt_debug(LL_DEBUG5, " Group %s\n", a->mailbox);
else
mutt_debug(LL_DEBUG5, " %s\n", a->mailbox);
}
}
mutt_grouplist_destroy(&gl);
return MUTT_CMD_SUCCESS;
bail:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_ERROR;
}
/**
* parse_alternates - Parse the 'alternates' command - Implements Command::parse()
*/
enum CommandResult parse_alternates(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct GroupList gl = STAILQ_HEAD_INITIALIZER(gl);
alternates_clean();
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (parse_grouplist(&gl, buf, s, err) == -1)
goto bail;
mutt_regexlist_remove(&UnAlternates, buf->data);
if (mutt_regexlist_add(&Alternates, buf->data, REG_ICASE, err) != 0)
goto bail;
if (mutt_grouplist_add_regex(&gl, buf->data, REG_ICASE, err) != 0)
goto bail;
} while (MoreArgs(s));
mutt_grouplist_destroy(&gl);
return MUTT_CMD_SUCCESS;
bail:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_ERROR;
}
/**
* parse_attachments - Parse the 'attachments' command - Implements Command::parse()
*/
enum CommandResult parse_attachments(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
char op;
char *category = NULL;
struct ListHead *head = NULL;
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (!buf->data || (*buf->data == '\0'))
{
mutt_buffer_strcpy(err, _("attachments: no disposition"));
return MUTT_CMD_WARNING;
}
category = buf->data;
op = *category++;
if (op == '?')
{
mutt_endwin();
fflush(stdout);
printf("\n%s\n\n", _("Current attachments settings:"));
print_attach_list(&AttachAllow, '+', "A");
print_attach_list(&AttachExclude, '-', "A");
print_attach_list(&InlineAllow, '+', "I");
print_attach_list(&InlineExclude, '-', "I");
mutt_any_key_to_continue(NULL);
return MUTT_CMD_SUCCESS;
}
if ((op != '+') && (op != '-'))
{
op = '+';
category--;
}
if (mutt_str_startswith("attachment", category, CASE_IGNORE))
{
if (op == '+')
head = &AttachAllow;
else
head = &AttachExclude;
}
else if (mutt_str_startswith("inline", category, CASE_IGNORE))
{
if (op == '+')
head = &InlineAllow;
else
head = &InlineExclude;
}
else
{
mutt_buffer_strcpy(err, _("attachments: invalid disposition"));
return MUTT_CMD_ERROR;
}
return parse_attach_list(buf, s, head, err);
}
/**
* parse_echo - Parse the 'echo' command - Implements Command::parse()
*/
enum CommandResult parse_echo(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "echo");
return MUTT_CMD_WARNING;
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
OptForceRefresh = true;
mutt_message("%s", buf->data);
OptForceRefresh = false;
mutt_sleep(0);
return MUTT_CMD_SUCCESS;
}
/**
* parse_finish - Parse the 'finish' command - Implements Command::parse()
* @retval #MUTT_CMD_FINISH Stop processing the current file
* @retval #MUTT_CMD_WARNING Failed
*
* If the 'finish' command is found, we should stop reading the current file.
*/
enum CommandResult parse_finish(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
if (MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too many arguments"), "finish");
return MUTT_CMD_WARNING;
}
return MUTT_CMD_FINISH;
}
/**
* parse_group - Parse the 'group' and 'ungroup' commands - Implements Command::parse()
*/
enum CommandResult parse_group(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct GroupList gl = STAILQ_HEAD_INITIALIZER(gl);
enum GroupState state = GS_NONE;
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (parse_grouplist(&gl, buf, s, err) == -1)
goto bail;
if ((data == MUTT_UNGROUP) && (mutt_str_strcasecmp(buf->data, "*") == 0))
{
mutt_grouplist_clear(&gl);
goto out;
}
if (mutt_str_strcasecmp(buf->data, "-rx") == 0)
state = GS_RX;
else if (mutt_str_strcasecmp(buf->data, "-addr") == 0)
state = GS_ADDR;
else
{
switch (state)
{
case GS_NONE:
mutt_buffer_printf(err, _("%sgroup: missing -rx or -addr"),
(data == MUTT_UNGROUP) ? "un" : "");
goto warn;
case GS_RX:
if ((data == MUTT_GROUP) &&
(mutt_grouplist_add_regex(&gl, buf->data, REG_ICASE, err) != 0))
{
goto bail;
}
else if ((data == MUTT_UNGROUP) &&
(mutt_grouplist_remove_regex(&gl, buf->data) < 0))
{
goto bail;
}
break;
case GS_ADDR:
{
char *estr = NULL;
struct AddressList al = TAILQ_HEAD_INITIALIZER(al);
mutt_addrlist_parse2(&al, buf->data);
if (TAILQ_EMPTY(&al))
goto bail;
if (mutt_addrlist_to_intl(&al, &estr))
{
mutt_buffer_printf(err, _("%sgroup: warning: bad IDN '%s'"),
(data == 1) ? "un" : "", estr);
mutt_addrlist_clear(&al);
FREE(&estr);
goto bail;
}
if (data == MUTT_GROUP)
mutt_grouplist_add_addrlist(&gl, &al);
else if (data == MUTT_UNGROUP)
mutt_grouplist_remove_addrlist(&gl, &al);
mutt_addrlist_clear(&al);
break;
}
}
}
} while (MoreArgs(s));
out:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_SUCCESS;
bail:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_ERROR;
warn:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_WARNING;
}
/**
* parse_ifdef - Parse the 'ifdef' and 'ifndef' commands - Implements Command::parse()
*
* The 'ifdef' command allows conditional elements in the config file.
* If a given variable, function, command or compile-time symbol exists, then
* read the rest of the line of config commands.
* e.g.
* ifdef sidebar source ~/.neomutt/sidebar.rc
*
* If (data == 1) then it means use the 'ifndef' (if-not-defined) command.
* e.g.
* ifndef imap finish
*/
enum CommandResult parse_ifdef(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
// is the item defined as:
bool res = cs_subset_lookup(NeoMutt->sub, buf->data) // a variable?
|| feature_enabled(buf->data) // a compiled-in feature?
|| is_function(buf->data) // a function?
|| mutt_command_get(buf->data) // a command?
|| myvar_get(buf->data) // a my_ variable?
|| mutt_str_getenv(buf->data); // an environment variable?
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), (data ? "ifndef" : "ifdef"));
return MUTT_CMD_WARNING;
}
mutt_extract_token(buf, s, MUTT_TOKEN_SPACE);
/* ifdef KNOWN_SYMBOL or ifndef UNKNOWN_SYMBOL */
if ((res && (data == 0)) || (!res && (data == 1)))
{
enum CommandResult rc = mutt_parse_rc_line(buf->data, err);
if (rc == MUTT_CMD_ERROR)
{
mutt_error(_("Error: %s"), err->data);
return MUTT_CMD_ERROR;
}
return rc;
}
return MUTT_CMD_SUCCESS;
}
/**
* parse_ignore - Parse the 'ignore' command - Implements Command::parse()
*/
enum CommandResult parse_ignore(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
remove_from_stailq(&UnIgnore, buf->data);
add_to_stailq(&Ignore, buf->data);
} while (MoreArgs(s));
return MUTT_CMD_SUCCESS;
}
/**
* parse_lists - Parse the 'lists' command - Implements Command::parse()
*/
enum CommandResult parse_lists(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
struct GroupList gl = STAILQ_HEAD_INITIALIZER(gl);
do
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (parse_grouplist(&gl, buf, s, err) == -1)
goto bail;
mutt_regexlist_remove(&UnMailLists, buf->data);
if (mutt_regexlist_add(&MailLists, buf->data, REG_ICASE, err) != 0)
goto bail;
if (mutt_grouplist_add_regex(&gl, buf->data, REG_ICASE, err) != 0)
goto bail;
} while (MoreArgs(s));
mutt_grouplist_destroy(&gl);
return MUTT_CMD_SUCCESS;
bail:
mutt_grouplist_destroy(&gl);
return MUTT_CMD_ERROR;
}
/**
* parse_mailboxes - Parse the 'mailboxes' command - Implements Command::parse()
*
* This is also used by 'virtual-mailboxes'.
*/
enum CommandResult parse_mailboxes(struct Buffer *buf, struct Buffer *s,
intptr_t data, struct Buffer *err)
{
while (MoreArgs(s))
{
struct Mailbox *m = mailbox_new();
if (data & MUTT_NAMED)
{
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (buf->data && (*buf->data != '\0'))
{
m->name = mutt_str_strdup(buf->data);
}
else
{
mailbox_free(&m);
continue;
}
}
mutt_extract_token(buf, s, MUTT_TOKEN_NO_FLAGS);
if (mutt_buffer_is_empty(buf))
{
/* Skip empty tokens. */
mailbox_free(&m);
continue;
}