commands.c File Reference

Functions to parse commands in a config file. More...

#include "config.h"
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "alias/lib.h"
#include "gui/lib.h"
#include "mutt.h"
#include "commands.h"
#include "attach/lib.h"
#include "color/lib.h"
#include "imap/lib.h"
#include "menu/lib.h"
#include "pager/lib.h"
#include "parse/lib.h"
#include "store/lib.h"
#include "alternates.h"
#include "globals.h"
#include "keymap.h"
#include "muttlib.h"
#include "mx.h"
#include "score.h"
#include "version.h"
#include "monitor.h"
#include <libintl.h>

Include dependency graph for commands.c:

Go to the source code of this file.

Macros
#define	MAX_ERRS   128

Enumerations
enum	GroupState { GS_NONE , GS_RX , GS_ADDR }
	Type of email address group. More...

Functions
static bool	is_function (const char *name)
	Is the argument a neomutt function? More...
int	parse_grouplist (struct GroupList *gl, struct Buffer *buf, struct Buffer *s, struct Buffer *err)
	Parse a group context. More...
enum CommandResult	parse_rc_line_cwd (const char *line, char *cwd, struct Buffer *err)
	Parse and run a muttrc line in a relative directory. More...
char *	mutt_get_sourced_cwd (void)
	Get the current file path that is being parsed. More...
int	source_rc (const char *rcfile_path, struct Buffer *err)
	Read an initialization file. More...
static enum CommandResult	parse_cd (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'cd' command - Implements Command::parse() -. More...
static enum CommandResult	parse_echo (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'echo' command - Implements Command::parse() -. More...
static enum CommandResult	parse_finish (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'finish' command - Implements Command::parse() -. More...
static enum CommandResult	parse_group (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'group' and 'ungroup' commands - Implements Command::parse() -. More...
static enum CommandResult	parse_ifdef (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'ifdef' and 'ifndef' commands - Implements Command::parse() -. More...
static enum CommandResult	parse_ignore (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'ignore' command - Implements Command::parse() -. More...
static enum CommandResult	parse_lists (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'lists' command - Implements Command::parse() -. More...
enum CommandResult	parse_mailboxes (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'mailboxes' command - Implements Command::parse() -. More...
enum CommandResult	parse_my_hdr (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'my_hdr' command - Implements Command::parse() -. More...
enum CommandResult	set_dump (ConfigDumpFlags flags, struct Buffer *err)
	Dump list of config variables into a file/pager. More...
static int	envlist_sort (const void *a, const void *b)
	Sort two environment strings. More...
static enum CommandResult	parse_setenv (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'setenv' and 'unsetenv' commands - Implements Command::parse() -. More...
static enum CommandResult	parse_source (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'source' command - Implements Command::parse() -. More...
static enum CommandResult	parse_spam_list (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'spam' and 'nospam' commands - Implements Command::parse() -. More...
static enum CommandResult	parse_stailq (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse a list command - Implements Command::parse() -. More...
static enum CommandResult	parse_subscribe (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'subscribe' command - Implements Command::parse() -. More...
enum CommandResult	parse_subscribe_to (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'subscribe-to' command - Implements Command::parse() -. More...
static enum CommandResult	parse_tag_formats (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'tag-formats' command - Implements Command::parse() -. More...
static enum CommandResult	parse_tag_transforms (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'tag-transforms' command - Implements Command::parse() -. More...
static enum CommandResult	parse_unignore (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unignore' command - Implements Command::parse() -. More...
static enum CommandResult	parse_unlists (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unlists' command - Implements Command::parse() -. More...
static void	do_unmailboxes (struct Mailbox *m)
	Remove a Mailbox from the Sidebar/notifications. More...
static void	do_unmailboxes_star (void)
	Remove all Mailboxes from the Sidebar/notifications. More...
enum CommandResult	parse_unmailboxes (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unmailboxes' command - Implements Command::parse() -. More...
static enum CommandResult	parse_unmy_hdr (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unmy_hdr' command - Implements Command::parse() -. More...
static enum CommandResult	parse_unstailq (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse an unlist command - Implements Command::parse() -. More...
static enum CommandResult	parse_unsubscribe (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unsubscribe' command - Implements Command::parse() -. More...
enum CommandResult	parse_unsubscribe_from (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'unsubscribe-from' command - Implements Command::parse() -. More...
static enum CommandResult	parse_version (struct Buffer *buf, struct Buffer *s, intptr_t data, struct Buffer *err)
	Parse the 'version' command - Implements Command::parse() -. More...
void	clear_source_stack (void)
	Free memory from the stack used for the source command. More...
void	commands_init (void)
	Initialize commands array and register default commands. More...

Variables
static struct ListHead	MuttrcStack = STAILQ_HEAD_INITIALIZER(MuttrcStack)
	LIFO designed to contain the list of config files that have been sourced and avoid cyclic sourcing. More...
static const struct Command	MuttCommands []
	General NeoMutt Commands. More...

Detailed Description

Functions to parse commands in a config file.

Authors

• Michael R. Elkins
• g10 Code GmbH
• R Primus

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/.

Definition in file commands.c.

Macro Definition Documentation

MAX_ERRS

#define MAX_ERRS   128

Definition at line 74 of file commands.c.

Enumeration Type Documentation

GroupState

enum GroupState

Type of email address group.

Enumerator
GS_NONE	Group is missing an argument.
GS_RX	Entry is a regular expression.
GS_ADDR	Entry is an address.

Definition at line 79 of file commands.c.

{
  GS_NONE, 
  GS_RX,   
  GS_ADDR, 
};

Function Documentation

is_function()

static bool is_function ( const char *  name )

static

Is the argument a neomutt function?

Parameters

name	Command name to be searched for

Return values

true	Function found
false	Function not found

Definition at line 92 of file commands.c.

{
  for (size_t i = 0; MenuNames[i].name; i++)
  {
    const struct MenuFuncOp *fns = km_get_table(MenuNames[i].value);
    if (!fns)
      continue;
 
    for (int j = 0; fns[j].name; j++)
      if (mutt_str_equal(name, fns[j].name))
        return true;
  }
  return false;
}

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parse_grouplist()

int parse_grouplist	(	struct GroupList *	gl,
		struct Buffer *	buf,
		struct Buffer *	s,
		struct Buffer *	err
	)

Parse a group context.

Parameters

gl	GroupList to add to
buf	Temporary Buffer space
s	Buffer containing string to be parsed
err	Buffer for error messages

Return values

0	Success
-1	Error

Definition at line 116 of file commands.c.

{
  while (mutt_istr_equal(buf->data, "-group"))
  {
    if (!MoreArgs(s))
    {
      buf_strcpy(err, _("-group: no group name"));
      return -1;
    }
 
    parse_extract_token(buf, s, TOKEN_NO_FLAGS);
 
    mutt_grouplist_add(gl, mutt_pattern_group(buf->data));
 
    if (!MoreArgs(s))
    {
      buf_strcpy(err, _("out of arguments"));
      return -1;
    }
 
    parse_extract_token(buf, s, TOKEN_NO_FLAGS);
  }
 
  return 0;
}

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parse_rc_line_cwd()

enum CommandResult parse_rc_line_cwd	(	const char *	line,
		char *	cwd,
		struct Buffer *	err
	)

Parse and run a muttrc line in a relative directory.

Parameters

line	Line to be parsed
cwd	File relative where to run the line
err	Where to write error messages

Return values

CommandResult

Result e.g. MUTT_CMD_SUCCESS

Definition at line 150 of file commands.c.

{
  mutt_list_insert_head(&MuttrcStack, mutt_str_dup(NONULL(cwd)));
 
  enum CommandResult ret = parse_rc_line(line, err);
 
  struct ListNode *np = STAILQ_FIRST(&MuttrcStack);
  STAILQ_REMOVE_HEAD(&MuttrcStack, entries);
  FREE(&np->data);
  FREE(&np);
 
  return ret;
}

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mutt_get_sourced_cwd()

char * mutt_get_sourced_cwd

(

void

)

Get the current file path that is being parsed.

Return values

ptr	File path that is being parsed or cwd at runtime

Note

Caller is responsible for freeing returned string

Definition at line 170 of file commands.c.

{
  struct ListNode *np = STAILQ_FIRST(&MuttrcStack);
  if (np && np->data)
    return mutt_str_dup(np->data);
 
  // stack is empty, return our own dummy file relative to cwd
  struct Buffer *cwd = buf_pool_get();
  mutt_path_getcwd(cwd);
  buf_addstr(cwd, "/dummy.rc");
  char *ret = buf_strdup(cwd);
  buf_pool_release(&cwd);
  return ret;
}

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source_rc()

int source_rc	(	const char *	rcfile_path,
		struct Buffer *	err
	)

Read an initialization file.

Parameters

rcfile_path	Path to initialization file
err	Buffer for error messages

Return values

<0	NeoMutt should pause to let the user know

Definition at line 191 of file commands.c.

{
  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] = { 0 };
  size_t linelen = 0;
  pid_t pid;
 
  mutt_str_copy(rcfile, rcfile_path, sizeof(rcfile));
 
  size_t rcfilelen = mutt_str_len(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_equal(np->data, rcfile))
      {
        break;
      }
    }
    if (np)
    {
      mutt_error(_("Error: Cyclic sourcing of configuration file '%s'"), rcfile);
      return -1;
    }
 
    mutt_list_insert_head(&MuttrcStack, mutt_str_dup(rcfile));
  }
 
  mutt_debug(LL_DEBUG2, "Reading configuration file '%s'\n", rcfile);
 
  FILE *fp = mutt_open_read(rcfile, &pid);
  if (!fp)
  {
    buf_printf(err, "%s: %s", rcfile, strerror(errno));
    return -1;
  }
 
  token = buf_pool_get();
  linebuf = buf_pool_get();
 
  const char *const c_config_charset = cs_subset_string(NeoMutt->sub, "config_charset");
  const char *const c_charset = cc_charset();
  while ((line = mutt_file_read_line(line, &linelen, fp, &lineno, MUTT_RL_CONT)) != NULL)
  {
    const bool conv = c_config_charset && c_charset;
    if (conv)
    {
      currentline = mutt_str_dup(line);
      if (!currentline)
        continue;
      mutt_ch_convert_string(&currentline, c_config_charset, c_charset, MUTT_ICONV_NO_FLAGS);
    }
    else
    {
      currentline = line;
    }
 
    buf_strcpy(linebuf, currentline);
 
    buf_reset(err);
    line_rc = 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(&currentline);
        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)
    {
      if (conv)
        FREE(&currentline);
      break; /* Found "finish" command */
    }
    else
    {
      if (rc < 0)
        rc = -1;
    }
    if (conv)
      FREE(&currentline);
  }
 
  FREE(&line);
  mutt_file_fclose(&fp);
  if (pid != -1)
    filter_wait(pid);
 
  if (rc)
  {
    /* the neomuttrc source keyword */
    buf_reset(err);
    buf_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)
    {
      buf_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);
  }
 
  buf_pool_release(&token);
  buf_pool_release(&linebuf);
  return rc;
}

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set_dump()

enum CommandResult set_dump	(	ConfigDumpFlags	flags,
		struct Buffer *	err
	)

Dump list of config variables into a file/pager.

Parameters

flags	what configs to dump: see ConfigDumpFlags
err	buffer for error message

Returns

num See CommandResult

FIXME: Move me into parse/set.c. Note: this function currently depends on pager, which is the reason it is not included in the parse library.

Definition at line 736 of file commands.c.

{
  char tempfile[PATH_MAX] = { 0 };
  mutt_mktemp(tempfile, sizeof(tempfile));
 
  FILE *fp_out = mutt_file_fopen(tempfile, "w");
  if (!fp_out)
  {
    // L10N: '%s' is the file name of the temporary file
    buf_printf(err, _("Could not create temporary file %s"), tempfile);
    return MUTT_CMD_ERROR;
  }
 
  dump_config(NeoMutt->sub->cs, flags, fp_out);
 
  mutt_file_fclose(&fp_out);
 
  struct PagerData pdata = { 0 };
  struct PagerView pview = { &pdata };
 
  pdata.fname = tempfile;
 
  pview.banner = "set";
  pview.flags = MUTT_PAGER_NO_FLAGS;
  pview.mode = PAGER_MODE_OTHER;
 
  mutt_do_pager(&pview, NULL);
 
  return MUTT_CMD_SUCCESS;
}

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envlist_sort()

static int envlist_sort ( const void *  a, const void *  b  )

static

Sort two environment strings.

Parameters

a	First string
b	Second string

Return values

-1	a precedes b
0	a and b are identical
1	b precedes a

Definition at line 775 of file commands.c.

{
  return strcmp(*(const char **) a, *(const char **) b);
}

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do_unmailboxes()

static void do_unmailboxes ( struct Mailbox *  m )

static

Remove a Mailbox from the Sidebar/notifications.

Parameters

m	Mailbox to unmailboxes

Definition at line 1265 of file commands.c.

{
#ifdef USE_INOTIFY
  mutt_monitor_remove(m);
#endif
  m->visible = false;
  m->gen = -1;
  if (m->opened)
  {
    struct EventMailbox ev_m = { NULL };
    mutt_debug(LL_NOTIFY, "NT_MAILBOX_CHANGE: NULL\n");
    notify_send(NeoMutt->notify, NT_MAILBOX, NT_MAILBOX_CHANGE, &ev_m);
  }
  else
  {
    account_mailbox_remove(m->account, m);
    mailbox_free(&m);
  }
}

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do_unmailboxes_star()

static void do_unmailboxes_star ( void  )

static

Remove all Mailboxes from the Sidebar/notifications.

Definition at line 1288 of file commands.c.

{
  struct MailboxList ml = STAILQ_HEAD_INITIALIZER(ml);
  neomutt_mailboxlist_get_all(&ml, NeoMutt, MUTT_MAILBOX_ANY);
  struct MailboxNode *np = NULL;
  struct MailboxNode *nptmp = NULL;
  STAILQ_FOREACH_SAFE(np, &ml, entries, nptmp)
  {
    do_unmailboxes(np->mailbox);
  }
  neomutt_mailboxlist_clear(&ml);
}

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clear_source_stack()

void clear_source_stack

(

void

)

Free memory from the stack used for the source command.

Definition at line 1510 of file commands.c.

{
  mutt_list_free(&MuttrcStack);
}

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commands_init()

void commands_init

(

void

)

Initialize commands array and register default commands.

Definition at line 1586 of file commands.c.

{
  commands_register(MuttCommands, mutt_array_size(MuttCommands));
}

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Variable Documentation

MuttrcStack

struct ListHead MuttrcStack = STAILQ_HEAD_INITIALIZER(MuttrcStack)

static

LIFO designed to contain the list of config files that have been sourced and avoid cyclic sourcing.

Definition at line 72 of file commands.c.

MuttCommands

const struct Command MuttCommands[]

static

General NeoMutt Commands.

Definition at line 1518 of file commands.c.