gnucash/libgnucash/app-utils/guile-util.h
2018-01-08 13:01:29 +11:00

134 lines
6.0 KiB
C

/********************************************************************\
* guile-util.h -- utility functions for using guile for GnuCash *
* Copyright (C) 1999 Linas Vepstas *
* Copyright (C) 2017 Aaron Laws *
* *
* 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, contact: *
* *
* Free Software Foundation Voice: +1-617-542-5942 *
* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
* Boston, MA 02110-1301, USA gnu@gnu.org *
* *
\********************************************************************/
#ifndef GUILE_UTIL_H
#define GUILE_UTIL_H
#include <glib.h>
#include <libguile.h>
#include "qof.h"
#include "Account.h"
#include "gnc-guile-utils.h"
/* Don't use this to get hold of symbols that are considered private
* to a given module unless the C code you're writing is considered
* part of that module. */
SCM gnc_scm_lookup(const char *module, const char *symbol);
/* The next set of functions is for manipulating scheme
* representations of splits and transactions. */
gboolean gnc_is_split_scm(SCM scm);
gboolean gnc_is_trans_scm(SCM scm);
SCM gnc_copy_split(Split *split, gboolean use_cut_semantics);
void gnc_copy_split_scm_onto_split(SCM split_scm, Split *split,
QofBook *book);
void gnc_split_scm_set_account(SCM split_scm, Account *account);
void gnc_split_scm_set_memo(SCM split_scm, const char *memo);
void gnc_split_scm_set_action(SCM split_scm, const char *action);
void gnc_split_scm_set_reconcile_state(SCM split_scm, char reconcile_state);
void gnc_split_scm_set_amount(SCM split_scm, gnc_numeric amount);
void gnc_split_scm_set_value(SCM split_scm, gnc_numeric value);
char * gnc_split_scm_get_memo(SCM split_scm);
char * gnc_split_scm_get_action(SCM split_scm);
gnc_numeric gnc_split_scm_get_amount(SCM split_scm);
gnc_numeric gnc_split_scm_get_value(SCM split_scm);
SCM gnc_copy_trans(Transaction *trans, gboolean use_cut_semantics);
void gnc_copy_trans_scm_onto_trans(SCM trans_scm, Transaction *trans,
gboolean do_commit, QofBook *book);
void gnc_copy_trans_scm_onto_trans_swap_accounts(SCM trans_scm,
Transaction *trans,
const GncGUID *guid_1,
const GncGUID *guid_2,
gboolean do_commit,
QofBook *book);
void gnc_trans_scm_set_date(SCM trans_scm, time64 time);
void gnc_trans_scm_set_num(SCM trans_scm, const char *num);
void gnc_trans_scm_set_description(SCM trans_scm, const char *description);
void gnc_trans_scm_set_notes(SCM trans_scm, const char *notes);
void gnc_trans_scm_append_split_scm(SCM trans_scm, SCM split_scm);
SCM gnc_trans_scm_get_split_scm(SCM trans_scm, int index);
SCM gnc_trans_scm_get_other_split_scm(SCM trans_scm, SCM split_scm);
int gnc_trans_scm_get_num_splits(SCM trans_scm);
/* Two functions that return string synonyms for the terms 'debit' and
* 'credit' as appropriate for the given account type and user preferences.
* They should be g_freed when no longer needed. */
char * gnc_get_debit_string(GNCAccountType account_type);
char * gnc_get_credit_string(GNCAccountType account_type);
/** An opaque process structure returned by gnc_spawn_process_async. */
typedef struct _Process Process;
/** Wraps g_spawn_async_with_pipes minimally. Use gnc_process_get_fd to access
* the file descriptors to the child. To close them them and free the memory
* allocated for the process once it has exited, call gnc_detach_process.
*
* @param argl A list of null-terminated strings used as arguments for spawning,
* i.e. "perl" "-w" "my-perl-script". Will be freed inside.
*
* @param search_path Determines whether the first element of argl will be
* looked for in the user's PATH.
*
* @return A pointer to a structure representing the process or NULL on failure.
*/
Process *gnc_spawn_process_async(GList *argl, const gboolean search_path);
/** Accesses a given process structure and returns the file descriptor connected
* to the childs stdin, stdout or stderr.
*
* @param proc A process structure returned by gnc_spawn_process_async.
*
* @param std_fd 0, 1 or 2.
*
* @return The file descriptor to write to the child on 0, or read from the
* childs output or error on 1 or 2, resp. */
gint gnc_process_get_fd(const Process *proc, const gint std_fd);
/** Close the file descriptors to a given process and declare it as detached. If
* it is both dead and detached, the allocated memory will be freed.
*
* @param proc A process structure returned by gnc_spawn_process_async.
*
* @param kill_it If TRUE, kill the process. */
void gnc_detach_process(Process *proc, const gboolean kill_it);
/** Convert a time string to calendar time representation. Combine strptime and
* mktime into a single function to avoid the need to wrap struct tm *.
*
* @param s String representation of time.
*
* @param format Format specification.
*
* @return The time in seconds since unix epoch, or -1 on error */
time64 gnc_parse_time_to_time64 (const gchar *s, const gchar *format);
#endif