--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,25 @@
+# ignore generated by libtool files (no more necessary)
+*.a
+*.o
+*.lo
+*.la
+*.so
+*.lai
+*.so.*
+# ignore backup files
+*~
+# ignore docs: they are not important and apiref is generated on the fly
+*.html
+# ignore generated makefile
+Makefile
+# ignore cmake files
+*.cmake
+CMake*
+CPack*
+# ignore generated header
+config.h
+# ignore resulting bundles
+*.deb
+*.tar.bz2
+# ignore build dir
+build
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/CMakeLists.txt Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,69 @@
+## Copyright 2009 Myhailo Danylenko
+# This file is part of mcabber module writing howto examples.
+#
+# Examples are 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/>.
+
+cmake_minimum_required(VERSION 2.6)
+project(yaubil C)
+
+## Target definitions
+add_library(yaubil MODULE yaubil.c)
+
+## User settable options
+set(MCABBER_INCLUDE_DIR "${yaubil_SOURCE_DIR}/../include"
+ CACHE FILEPATH "Path to mcabber headers")
+
+## Packaging information
+set(CPACK_PACKAGE_NAME libmcabber-yaubil)
+set(CPACK_PACKAGE_VERSION "0.0.1")
+set(CPACK_PACKAGE_VENDOR "IsBear")
+set(CPACK_PACKAGE_CONTACT "Myhailo Danylenko <isbear@ukrpost.net>")
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Mcabber example modularized yaubil implementation")
+set(CPACK_RESOURCE_FILE_LICENSE ${yaubil_SOURCE_DIR}/COPYING)
+set(CPACK_SOURCE_GENERATOR TBZ2)
+set(CPACK_GENERATOR DEB CACHE TEXT "Binary package generator, eg DEB, RPM, TGZ, NSIS...")
+set(CPACK_DEBIAN_PACKAGE_SECTION libs)
+find_program(DPKG_EXECUTABLE dpkg)
+if(DPKG_EXECUTABLE)
+ execute_process(COMMAND ${DPKG_EXECUTABLE} --print-architecture OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE OUTPUT_STRIP_TRAILING_WHITESPACE)
+else()
+ set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE i386 CACHE TEXT "Architecture of package")
+endif()
+set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}_${CPACK_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
+set(CPACK_SOURCE_IGNORE_FILES "/\\\\..*;\\\\.swp;~$;/build/;\\\\.tar\\\\.;\\\\.deb;\\\\.so")
+include(CPack)
+
+## Check for build dependencies
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GLIB REQUIRED glib-2.0)
+pkg_check_modules(GMODULE REQUIRED gmodule-2.0)
+#pkg_check_modules(LM REQUIRED loudmouth-1.0)
+
+## Compiler setup
+include_directories(SYSTEM ${GLIB_INCLUDE_DIRS}
+ ${GMODULE_INCLUDE_DIRS}
+ ${LM_INCLUDE_DIRS})
+target_link_libraries(yaubil ${GLIB_LIBRARIES}
+ ${GMODULE_LIBRARIES}
+ ${LM_LIBRARIES})
+include_directories(${yaubil_SOURCE_DIR}
+ ${yaubil_BINARY_DIR}
+ ${MCABBER_INCLUDE_DIR})
+
+## Installation
+install(TARGETS yaubil DESTINATION lib/mcabber)
+install(FILES COPYING yaubil.rc DESTINATION share/doc/${CPACK_PACKAGE_NAME})
+install(DIRECTORY help DESTINATION share/mcabber)
+
+## The End ## vim: se ts=4: ##
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/COPYING Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,339 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
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+software--to make sure the software is free for all its users. This
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+Foundation's software and to any other program whose authors commit to
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+
+ When we speak of free software, we are referring to freedom, not
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+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
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+running the Program is not restricted, and the output from the Program
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+Whether that is true depends on what the Program does.
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+ 1. You may copy and distribute verbatim copies of the Program's
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+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
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+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
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+This section is intended to make thoroughly clear what is believed to
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+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+ To do so, attach the following notices to the program. It is safest
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+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ 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, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
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+If the program is interactive, make it output a short notice like this
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+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/config.h Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,8 @@
+
+#ifndef LOCAL_CONFIG_H
+#define LOCAL_CONFIG_H
+
+#define MODULES_ENABLE 1
+
+# endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/help/en/hlp_eval.txt Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,28 @@
+
+ /EVAL [expression]
+
+Evaluates expression and executes result string as command.
+Expression evaluation rules:
+* all operators have the same precedence;
+* parenthesis searching will not take into account strings;
+* supported operators:
+ . string concatenation
+ + binary plus / string concatenation
+ - binary minus
+ * multiplication / string replication
+ / division
+ % division remain
+ < binary / string less than
+ > binary / string greater than
+ = binary / string equality
+* strings must be quoted with double quotes ("..."), within string backslash is used for character escaping (\\ and \" are only useful applications);
+* parentheses can be used to change operators precedence, nested parentheses are supported as long as they are balanced;
+* numbers can be specified as plain decimal numbers, minus in front of digit will be recognized as a part of number;
+* mcabber variables can be specified by name, though only subset of possible names is suppoted:
+ - variable must start from latin alphabetic symbol;
+ - inside of variable name also are allowed digits, - and _.
+
+Example:
+ /eval "echo 2 + 2 = " . (2+2)
+ /eval "set ping_interval = " . (ping_interval + 1)
+Note: last example probably should use /let command.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/help/en/hlp_if.txt Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,12 @@
+
+ /IF [expression]
+ /THEN command
+ /ELSE command
+
+Evaluates expression and stores true if expression evaluates to non-zero integer or non-unset string, false if it evaluates to unset value, integer zero or unset string.
+Then and else commands can be called any number of times - they will use the same stored value.
+For details on expression syntax see help for eval command.
+Example:
+ /if fifo_name
+ /then load fifo
+ /else echo "fifo_name not set, fifo module not loaded"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/help/en/hlp_let.txt Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,7 @@
+
+ /LET variable = [expression]
+
+Evaluates expression and assigns result to mcabber variable.
+For details on expression syntax, see help for eval command.
+Example:
+ /let ping_interval = ping_interval + 1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/help/en/hlp_multi.txt Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,7 @@
+
+ /MULTI command[;command[...]]
+
+Runs specified mcabber commands one by one. Note, that it will not honour any backslash-escapes, parentheses, quotes etc - it will just split line on semicolons.
+Example:
+ /set hook-post-connect = multi group fold Transports; group fold Old
+ /multi if fifo_name; then load fifo; else echo "fifo_name not set, fifo module not loaded"
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/yaubil.c Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,852 @@
+/*
+ * yaubil.c -- Yet Another Useless Built-In Language
+ *
+ * Copyrigth (C) 2009 Myhailo Danylenko <isbear@ukrpost.net>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include <glib.h>
+#include <gmodule.h>
+#include <string.h>
+
+#include "commands.h"
+#include "compl.h"
+#include "logprint.h"
+#include "settings.h"
+
+static gboolean ifresult = TRUE;
+
+#define MSGPREFIX "yaubil: "
+
+#define TYPE_UNDEF ( 0 )
+#define TYPE_STR ( 1 )
+#define TYPE_INT ( 2 )
+
+#define STATE_LVALUE ( 1 )
+#define STATE_OP ( 2 )
+#define STATE_RVALUE ( 3 )
+
+typedef struct {
+ int type;
+ int int_value;
+ char *str_value;
+} value_t;
+
+typedef struct {
+ char op;
+ gboolean (*handler) (value_t *l, value_t *r);
+} op_t;
+
+static int check_value_type (const char *value)
+{
+ if (value) {
+ const char *e;
+ gboolean integer = (*value == '-') ? FALSE : (g_ascii_isdigit (*value) ? TRUE : FALSE);
+
+ if (integer) {
+ for (e = value + 1; *e; ++e) {
+ if (g_ascii_isdigit (*e))
+ integer = TRUE;
+ else {
+ integer = FALSE;
+ break;
+ }
+ }
+ }
+
+ if (integer)
+ return TYPE_INT;
+ else
+ return TYPE_STR;
+ } else
+ return TYPE_UNDEF;
+}
+
+static gboolean op_concat (value_t *l, value_t *r)
+{
+ GString *res = g_string_new (NULL);;
+
+ if (l->type == TYPE_INT)
+ g_string_append_printf (res, "%d", l->int_value);
+ else if (l->type == TYPE_STR)
+ g_string_append (res, l->str_value);
+
+ if (r->type == TYPE_INT)
+ g_string_append_printf (res, "%d", r->int_value);
+ else if (r->type == TYPE_STR)
+ g_string_append (res, r->str_value);
+
+ l->type = TYPE_STR;
+ g_free (l->str_value);
+ l->str_value = g_string_free (res, FALSE);
+
+ return TRUE;
+}
+
+static gboolean op_plus (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ // not free value here
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ // not free value here
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ // integer
+ l->int_value += r->int_value;
+ g_free (l->str_value);
+ l->str_value = NULL;
+ g_free (r->str_value);
+ r->str_value = NULL;
+ } else {
+ // convert both to strings
+ if (l->type == TYPE_INT) {
+ l->type = TYPE_STR;
+ if (!l->str_value)
+ l->str_value = g_strdup_printf ("%d", l->int_value);
+ }
+ if (r->type == TYPE_INT) {
+ r->type = TYPE_STR;
+ if (!r->str_value)
+ r->str_value = g_strdup_printf ("%d", r->int_value);
+ }
+
+ {
+ char *tmp = l->str_value;
+ l->str_value = g_strdup_printf ("%s%s", tmp, r->str_value);
+ g_free (tmp);
+ }
+ }
+
+ return TRUE;
+}
+
+static gboolean op_minus (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ g_free (l->str_value);
+ l->str_value = NULL;
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ g_free (r->str_value);
+ r->str_value = NULL;
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT)
+ l->int_value -= r->int_value;
+ else
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean op_multiply (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ // not free value here
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ g_free (r->str_value);
+ r->str_value = NULL;
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ l->int_value *= r->int_value;
+ g_free (l->str_value);
+ l->str_value = NULL;
+ } else if (r->type == TYPE_INT) {
+ GString *res = g_string_new (NULL);
+ int i;
+ for (i = r->int_value; i; --i)
+ g_string_append (res, l->str_value);
+ g_free (l->str_value);
+ l->str_value = g_string_free (res, FALSE);
+ } else
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean op_divide (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ g_free (l->str_value);
+ l->str_value = NULL;
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ g_free (r->str_value);
+ r->str_value = NULL;
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ if (r->int_value == 0) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "/: Error: division by zero.");
+ return FALSE;
+ }
+ l->int_value /= r->int_value;
+ } else
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean op_remain (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ g_free (l->str_value);
+ l->str_value = NULL;
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ g_free (r->str_value);
+ r->str_value = NULL;
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ if (r->int_value == 0) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "%%: Error: division by zero.");
+ return FALSE;
+ }
+ l->int_value %= r->int_value;
+ } else
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean op_equal (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ // not free value here
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ // not free value here
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ // integer
+ l->int_value = (l->int_value == r->int_value) ? 1 : 0;
+ g_free (l->str_value);
+ l->str_value = NULL;
+ g_free (r->str_value);
+ r->str_value = NULL;
+ } else {
+ // convert both to strings
+ if (l->type == TYPE_INT) {
+ l->type = TYPE_STR;
+ if (!l->str_value)
+ l->str_value = g_strdup_printf ("%d", l->int_value);
+ }
+ if (r->type == TYPE_INT) {
+ r->type = TYPE_STR;
+ if (!r->str_value)
+ r->str_value = g_strdup_printf ("%d", r->int_value);
+ }
+
+ {
+ char *tmp = l->str_value;
+ l->type = TYPE_INT;
+ l->int_value = (g_strcmp0 (l->str_value, r->str_value) == 0) ? 1 : 0;
+ g_free (tmp);
+ }
+ }
+
+ return TRUE;
+}
+
+static gboolean op_lt (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ // not free value here
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ // not free value here
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ // integer
+ l->int_value = (l->int_value < r->int_value) ? 1 : 0;
+ g_free (l->str_value);
+ l->str_value = NULL;
+ g_free (r->str_value);
+ r->str_value = NULL;
+ } else {
+ // convert both to strings
+ if (l->type == TYPE_INT) {
+ l->type = TYPE_STR;
+ if (!l->str_value)
+ l->str_value = g_strdup_printf ("%d", l->int_value);
+ }
+ if (r->type == TYPE_INT) {
+ r->type = TYPE_STR;
+ if (!r->str_value)
+ r->str_value = g_strdup_printf ("%d", r->int_value);
+ }
+
+ {
+ char *tmp = l->str_value;
+ l->type = TYPE_INT;
+ l->int_value = (g_strcmp0 (l->str_value, r->str_value) < 0) ? 1 : 0;
+ g_free (tmp);
+ }
+ }
+
+ return TRUE;
+}
+
+static gboolean op_gt (value_t *l, value_t *r)
+{
+ if (l->type == TYPE_UNDEF) {
+ l->type = TYPE_INT;
+ l->int_value = 0;
+ }
+ if (r->type == TYPE_UNDEF) {
+ r->type = TYPE_INT;
+ r->int_value = 0;
+ }
+
+ if (l->type == TYPE_STR && check_value_type (l->str_value) == TYPE_INT) {
+ l->type = TYPE_INT;
+ l->int_value = atoi (l->str_value);
+ // not free value here
+ }
+ if (r->type == TYPE_STR && check_value_type (r->str_value) == TYPE_INT) {
+ r->type = TYPE_INT;
+ r->int_value = atoi (r->str_value);
+ // not free value here
+ }
+
+ if (l->type == TYPE_INT && r->type == TYPE_INT) {
+ // integer
+ l->int_value = (l->int_value > r->int_value) ? 1 : 0;
+ g_free (l->str_value);
+ l->str_value = NULL;
+ g_free (r->str_value);
+ r->str_value = NULL;
+ } else {
+ // convert both to strings
+ if (l->type == TYPE_INT) {
+ l->type = TYPE_STR;
+ if (!l->str_value)
+ l->str_value = g_strdup_printf ("%d", l->int_value);
+ }
+ if (r->type == TYPE_INT) {
+ r->type = TYPE_STR;
+ if (!r->str_value)
+ r->str_value = g_strdup_printf ("%d", r->int_value);
+ }
+
+ {
+ char *tmp = l->str_value;
+ l->type = TYPE_INT;
+ l->int_value = (g_strcmp0 (l->str_value, r->str_value) > 0) ? 1 : 0;
+ g_free (tmp);
+ }
+ }
+
+ return TRUE;
+}
+
+static op_t operators[] = {
+ { '.', op_concat },
+ { '+', op_plus },
+ { '-', op_minus },
+ { '*', op_multiply },
+ { '/', op_divide },
+ { '%', op_remain },
+ { '=', op_equal },
+ { '<', op_lt },
+ { '>', op_gt },
+ { 0, NULL },
+};
+
+static void destroy_value (value_t *value)
+{
+ if (value->str_value)
+ g_free (value->str_value);
+ g_free (value);
+}
+
+static value_t *process_expression (const char *str, gsize len)
+{
+ const char *strend = str + len;
+ const char *p;
+ op_t *op = NULL;
+ int state = STATE_LVALUE;
+ value_t val = {
+ .type = TYPE_UNDEF,
+ .int_value = 0,
+ .str_value = NULL,
+ };
+
+ for (p = str; *p && p < strend; ++p) {
+ switch (state) {
+ case STATE_LVALUE:
+ case STATE_RVALUE:
+
+ if (*p == ' ')
+ break;
+
+ {
+ value_t rval = {
+ .type = TYPE_UNDEF,
+ .int_value = 0,
+ .str_value = NULL,
+ };
+
+ if (g_ascii_isdigit (*p) || *p == '-') { // integer // XXX: no unary operators for now...
+
+ const char *e;
+
+ rval.type = TYPE_INT;
+
+ for (e = p + 1; g_ascii_isdigit (*e) && e < strend; ++e); // TODO: does atoi handle 0x etc? then also allow this?
+
+ {
+ char *v = g_strndup (p, e - p);
+ rval.int_value = atoi (v);
+ g_free (v);
+ }
+
+ p = e - 1;
+
+ } else if (*p == '"') { // string
+
+ const char *e;
+
+ rval.type = TYPE_STR;
+
+ {
+ gboolean finished = FALSE;
+ gboolean escape = FALSE;
+ GString *v = g_string_new (NULL);
+
+ for (e = p + 1; *e && e < strend; ++e) {
+ switch (*e) {
+ case '\\':
+ if (!escape)
+ escape = TRUE;
+ else
+ escape = FALSE;
+ break;
+ case '"':
+ if (!escape) {
+ finished = TRUE;
+ break;
+ } else
+ escape = FALSE;
+ break;
+ default:
+ escape = FALSE;
+ break;
+ }
+
+ if (finished)
+ break;
+
+ if (!escape)
+ g_string_append_c (v, *e);
+ };
+
+ if (!finished) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: Unmatched quote.");
+ g_string_free (v, TRUE);
+ g_free (val.str_value);
+ return NULL;
+ }
+
+ rval.str_value = g_string_free (v, FALSE);
+ }
+
+ p = e;
+
+ } else if (g_ascii_isalpha (*p)) { // variable (MUST start from alpha)
+
+ const char *e;
+
+ for (e = p + 1; (g_ascii_isalnum (*e) || *e == '-' || *e == '_') && e < strend; ++e);
+
+ char *name = g_strndup (p, e - p);
+ const char *value = settings_opt_get (name);
+ g_free (name);
+
+ rval.type = check_value_type (value);
+ if (rval.type == TYPE_INT)
+ rval.int_value = atoi (value);
+ else if (rval.type == TYPE_STR)
+ rval.str_value = g_strdup (value);
+
+ p = e - 1;
+
+ } else if (*p == '(') {
+
+ const char *e;
+
+ {
+ int l = 0;
+ gboolean finished = FALSE;
+
+ // XXX maybe we should just pass end of line and let it return real length...
+ for (e = p + 1; e < strend; ++e) {
+ if (*e == '(')
+ ++l;
+ else if (*e == ')') {
+ --l;
+ if (l < 0) {
+ finished = TRUE;
+ break;
+ }
+ }
+ }
+
+ if (!finished) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: Unmatched parenthesis.");
+ g_free (val.str_value);
+ return NULL;
+ }
+ }
+
+ {
+ value_t *n = process_expression (p + 1, e - p - 1);
+
+ if (!n) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: Error in subexpression.");
+ g_free (val.str_value);
+ return NULL;
+ }
+
+ rval.type = n->type;
+ rval.int_value = n->int_value;
+ rval.str_value = g_strdup (n->str_value);
+ destroy_value (n);
+ }
+
+ p = e;
+
+ } else {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: unrecognized symbols.");
+ g_free (val.str_value);
+ return NULL;
+ }
+
+ if (state == STATE_RVALUE) {
+ if (op->handler) {
+ if (!op->handler (&val, &rval)) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: operand argument types mismatch.");
+ g_free (val.str_value);
+ g_free (rval.str_value);
+ return NULL;
+ }
+ }
+ g_free (rval.str_value);
+ } else {
+ val.type = rval.type;
+ val.int_value = rval.int_value;
+ val.str_value = rval.str_value;
+ }
+
+ state = STATE_OP;
+ }
+
+ break;
+
+ case STATE_OP:
+
+ if (*p == ' ')
+ break;
+
+ {
+ op_t *operator;
+ gboolean found = FALSE;
+
+ for (operator = operators; operator->op; ++operator) {
+ if (operator->op == *p) {
+ op = operator;
+ found = TRUE;
+ break;
+ }
+ }
+
+ if (!found) {
+ scr_LogPrint (LPRINT_NORMAL, MSGPREFIX "Error: unknown operator.");
+ g_free (val.str_value);
+ }
+ }
+
+ state = STATE_RVALUE;
+
+ break;
+ default:
+ break;
+ }
+ }
+
+ { // return value
+ value_t *rval = g_new (value_t, 1);
+
+ rval->type = val.type;
+ rval->int_value = val.int_value;
+ rval->str_value = val.str_value;
+
+ return rval;
+ }
+}
+
+static void do_eval (char *arg)
+{
+ value_t *val = process_expression (arg, strlen (arg));
+
+ if (!val) {
+ scr_LogPrint (LPRINT_NORMAL, "eval: Evaluation error.");
+ return;
+ }
+
+ if (val->type == TYPE_STR)
+ process_command (val->str_value, TRUE);
+ else
+ scr_LogPrint (LPRINT_NORMAL, "eval: Expression does not result in string.");
+
+ destroy_value (val);
+}
+
+static void do_let (char *arg)
+{
+ char *varname;
+ value_t *value;
+ int namelen;
+ char *val = strchr (arg, '=');
+
+ if (!val) {
+ scr_LogPrint (LPRINT_NORMAL, "let: Syntax error: no equal sign in line.");
+ return;
+ }
+
+ {
+ char *p = val;
+
+ for (p = val - 1; p >= arg && *p == ' '; --p);
+ if (p < arg) {
+ scr_LogPrint (LPRINT_NORMAL, "let: Syntax error: no destination variable name specified.");
+ return;
+ }
+
+ namelen = p + 1 - arg;
+ }
+
+ // evaluate expression
+ value = process_expression (val + 1, strlen (val + 1));
+
+ if (!value) {
+ scr_LogPrint (LPRINT_NORMAL, "let: Evaluation error.");
+ return;
+ }
+
+ if (value->type == TYPE_INT) {
+ value->type = TYPE_STR;
+ value->str_value = g_strdup_printf ("%d", value->int_value);
+ }
+
+ { // assign value
+ char *varname = g_strndup (arg, namelen);
+
+ if (value->str_value)
+ settings_set (SETTINGS_TYPE_OPTION, varname, value->str_value);
+ else
+ settings_del (SETTINGS_TYPE_OPTION, varname);
+
+ g_free (varname);
+ }
+
+ destroy_value (value);
+}
+
+static void do_if (char *arg)
+{
+ value_t *val = process_expression (arg, strlen (arg));
+
+ if (!val) {
+ scr_LogPrint (LPRINT_NORMAL, "if: Evaluation error.");
+ return;
+ }
+
+ if (val->type == TYPE_UNDEF) {
+ val->type = TYPE_INT;
+ val->int_value = 0;
+ }
+ if (val->type == TYPE_STR && check_value_type (val->str_value) == TYPE_INT) {
+ val->type = TYPE_INT;
+ val->int_value = atoi (val->str_value);
+ g_free (val->str_value);
+ val->str_value = NULL;
+ }
+
+ if (val->type == TYPE_INT)
+ ifresult = val->int_value ? TRUE : FALSE;
+ else if (val->str_value)
+ ifresult = TRUE;
+ else
+ ifresult = FALSE;
+
+ destroy_value (val);
+}
+
+static void do_then (char *arg)
+{
+ if (ifresult)
+ process_command (arg, TRUE);
+}
+
+static void do_else (char *arg)
+{
+ if (!ifresult)
+ process_command (arg, TRUE);
+}
+
+static void do_multi (char *arg)
+{
+ char *end;
+ char *start = arg;
+
+ for (end = strchr (start, ';'); end; end = strchr (start, ';')) {
+
+ // execute command
+ char *command = g_strndup (start, end - start);
+ process_command (command, TRUE);
+ g_free (command);
+
+ // skip leading spaces
+ for (start = end + 1; *start == ' '; ++start);
+ }
+
+ if (*start)
+ process_command (start, TRUE);
+}
+
+const gchar *g_module_check_init (GModule *module)
+{
+ cmd_add ("multi", "", COMPL_CMD, COMPL_CMD, do_multi, NULL);
+ cmd_add ("if", "", 0, 0, do_if, NULL);
+ cmd_add ("then", "", COMPL_CMD, COMPL_CMD, do_then, NULL);
+ cmd_add ("else", "", COMPL_CMD, COMPL_CMD, do_else, NULL);
+ cmd_add ("eval", "", 0, 0, do_eval, NULL);
+ cmd_add ("let", "", 0, 0, do_let, NULL);
+
+ return NULL;
+}
+
+void g_module_unload (GModule *module)
+{
+ cmd_del ("multi");
+ cmd_del ("if");
+ cmd_del ("then");
+ cmd_del ("else");
+ cmd_del ("eval");
+ cmd_del ("let");
+}
+
+/* The End */
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/yaubil.rc Tue Nov 10 18:27:16 2009 +0200
@@ -0,0 +1,3 @@
+
+load yaubil
+