extras/zsh.cpp: hacky c++ program that generate a zsh completion rule for vlc.

todo: MODULE_CAT and MODULE_CAT_LIST options. Better mrl completion. :option=value syntax. sout completion
parent 4a861e43
/*****************************************************************************
* zsh.cpp: create zsh completion rule for vlc
*****************************************************************************
* Copyright (C) 1998-2005 VideoLAN
* $Id$
*
* Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
*
* 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, USA.
*****************************************************************************/
#include <stdio.h>
#include <map>
#include <string>
#include <utility>
#include <iostream>
#include <algorithm>
typedef std::multimap<std::string, std::string> mmap;
typedef std::pair<std::string, std::string> mpair;
#include <vlc/vlc.h>
void ParseModules( vlc_t *p_vlc, mmap &mods );
mmap PrintModuleList( vlc_t *p_vlc );
void ParseOption( module_config_t *p_item, mmap &mods );
void PrintOption( char *psz_option, char i_short, char *psz_exlusive,
char *psz_text, char *psz_longtext, char *psz_args );
extern "C"{ vlc_t * vlc_current_object( int i_object );}
int main( int i_argc, char **ppsz_argv )
{
mmap mods;
/* Create a libvlc structure */
int i_ret = VLC_Create();
vlc_t *p_vlc;
if( i_ret < 0 )
{
return i_ret;
}
/* Initialize libvlc */
i_ret = VLC_Init( 0, i_argc, ppsz_argv );
if( i_ret < 0 )
{
VLC_Destroy( 0 );
return i_ret;
}
p_vlc = vlc_current_object( i_ret );
printf("#compdef vlc\n\n"
"typeset -A opt_args\n"
"local context state line\n"
"local modules\n\n" );
mods = PrintModuleList( p_vlc );
printf( "_arguments -S -s \\\n" );
ParseModules( p_vlc, mods );
printf( " \"(--module)-p[print help on module]:print help on module:($modules)\"\\\n" );
printf( " \"(-p)--module[print help on module]:print help on module:($modules)\"\\\n" );
printf( " \"(--help)-h[print help]\"\\\n" );
printf( " \"(-h)--help[print help]\"\\\n" );
printf( " \"(--longhelp)-H[print detailed help]\"\\\n" );
printf( " \"(-H)--longhelp[print detailed help]\"\\\n" );
printf( " \"(--list)-l[print a list of available modules]\"\\\n" );
printf( " \"(-l)--list[print a list of available modules]\"\\\n" );
printf( " \"--save-config[save the current command line options in the config file]\"\\\n" );
printf( " \"--reset-config[reset the current config to the default values]\"\\\n" );
printf( " \"--config[use alternate config file]\"\\\n" );
printf( " \"--reset-plugins-cache[resets the current plugins cache]\"\\\n" );
printf( " \"--version[print version information]\"\\\n" );
printf( " \"*:Playlist item:_files\"\\\n" );
printf( " && return 0\n\n" );
printf( "return 1\n" );
return 0;
/* Finish the threads */
VLC_CleanUp( 0 );
/* Destroy the libvlc structure */
VLC_Destroy( 0 );
return i_ret;
}
void ParseModules( vlc_t *p_vlc, mmap &mods )
{
vlc_list_t *p_list = NULL;;
module_t *p_module;
module_config_t *p_item;
int i_index;
/* List the plugins */
p_list = vlc_list_find( p_vlc, VLC_OBJECT_MODULE, FIND_ANYWHERE );
if( !p_list ) return;
for( i_index = 0; i_index < p_list->i_count; i_index++ )
{
p_module = (module_t *)p_list->p_values[i_index].p_object;
/* Exclude empty plugins (submodules don't have config options, they
* are stored in the parent module) */
if( p_module->b_submodule )
continue;
// p_item = ((module_t *)p_module->p_parent)->p_config;
else
p_item = p_module->p_config;
// printf( " #%s\n", p_module->psz_longname );
if( !p_item ) continue;
do
{
if( p_item->i_type == CONFIG_CATEGORY )
{
// printf( " #Category %d\n", p_item->i_value );
}
else if( p_item->i_type == CONFIG_SUBCATEGORY )
{
// printf( " #Subcategory %d\n", p_item->i_value );
}
if( p_item->i_type & CONFIG_ITEM )
ParseOption( p_item, mods );
}
while( p_item->i_type != CONFIG_HINT_END && p_item++ );
}
}
mmap PrintModuleList( vlc_t *p_vlc )
{
vlc_list_t *p_list = NULL;;
module_t *p_module;
int i_index;
mmap modules_cap;
/* List the plugins */
p_list = vlc_list_find( p_vlc, VLC_OBJECT_MODULE, FIND_ANYWHERE );
if( !p_list ) return mmap();
printf( "modules=\"" );
for( i_index = 0; i_index < p_list->i_count; i_index++ )
{
p_module = (module_t *)p_list->p_values[i_index].p_object;
/* Exclude empty plugins (submodules don't have config options, they
* are stored in the parent module) */
if( p_module->b_submodule )
continue;
if( strcmp( p_module->psz_object_name, "main" ) )
{
modules_cap.insert( mpair( p_module->psz_capability,
p_module->psz_object_name ) );
printf( "%s ", p_module->psz_object_name );
}
}
printf( "\"\n\n" );
return modules_cap;
}
void ParseOption( module_config_t *p_item, mmap &mods )
{
char *psz_arguments = "";
char *psz_exclusive;
char *psz_option;
switch( p_item->i_type )
{
case CONFIG_ITEM_MODULE:
{
std::pair<mmap::iterator, mmap::iterator> range = mods.equal_range( p_item->psz_type );
std::string list = (*range.first).second;
++range.first;
while( range.first != range.second )
{
list = list.append( " " );
list = list.append( range.first->second );
++range.first;
}
asprintf( &psz_arguments, "(%s)", list.c_str() );
}
break;
case CONFIG_ITEM_MODULE_CAT:
// p_control = new ModuleCatConfigControl( p_this, p_item, parent );
break;
case CONFIG_ITEM_MODULE_LIST_CAT:
// p_control = new ModuleListCatConfigControl( p_this, p_item, parent );
break;
case CONFIG_ITEM_STRING:
if( p_item->i_list )
{
int i = p_item->i_list -1;
char *psz_list;
if( p_item->ppsz_list_text )
asprintf( &psz_list, "%s\\:%s", p_item->ppsz_list[i],
p_item->ppsz_list_text[i] );
else
psz_list = strdup(p_item->ppsz_list[i]);
char *psz_list2;
while( i>1 )
{
if( p_item->ppsz_list_text )
asprintf( &psz_list2, "%s\\:%s %s", p_item->ppsz_list[i-1],
p_item->ppsz_list_text[i-1], psz_list );
else
asprintf( &psz_list2, "%s %s", p_item->ppsz_list[i-1],
psz_list );
free( psz_list );
psz_list = psz_list2;
i--;
}
if( p_item->ppsz_list_text )
asprintf( &psz_arguments, "((%s))", psz_list );
else
asprintf( &psz_arguments, "(%s)", psz_list );
free( psz_list );
}
break;
case CONFIG_ITEM_FILE:
psz_arguments = "_files";
break;
case CONFIG_ITEM_DIRECTORY:
psz_arguments = "_files -/";
break;
case CONFIG_ITEM_INTEGER:
if( p_item->i_list )
{
int i = p_item->i_list -1;
char *psz_list;
if( p_item->ppsz_list_text )
asprintf( &psz_list, "%d\\:%s", p_item->pi_list[i],
p_item->ppsz_list_text[i] );
else
psz_list = strdup(p_item->ppsz_list[i]);
char *psz_list2;
while( i>1 )
{
if( p_item->ppsz_list_text )
asprintf( &psz_list2, "%d\\:%s %s", p_item->pi_list[i-1],
p_item->ppsz_list_text[i-1], psz_list );
else
asprintf( &psz_list2, "%s %s", p_item->ppsz_list[i-1],
psz_list );
free( psz_list );
psz_list = psz_list2;
i--;
}
if( p_item->ppsz_list_text )
asprintf( &psz_arguments, "((%s))", psz_list );
else
asprintf( &psz_arguments, "(%s)", psz_list );
free( psz_list );
}
else if( p_item->i_min != 0 || p_item->i_max != 0 )
{
// p_control = new RangedIntConfigControl( p_this, p_item, parent );
}
else
{
// p_control = new IntegerConfigControl( p_this, p_item, parent );
}
break;
case CONFIG_ITEM_KEY:
// p_control = new KeyConfigControl( p_this, p_item, parent );
break;
case CONFIG_ITEM_FLOAT:
// p_control = new FloatConfigControl( p_this, p_item, parent );
break;
case CONFIG_ITEM_BOOL:
// p_control = new BoolConfigControl( p_this, p_item, parent );
psz_arguments = NULL;
asprintf( &psz_exclusive, "--no%s --no-%s", p_item->psz_name,
p_item->psz_name );
PrintOption( p_item->psz_name, p_item->i_short, psz_exclusive,
p_item->psz_text, p_item->psz_longtext, psz_arguments );
free( psz_exclusive );
asprintf( &psz_exclusive, "--no%s --%s", p_item->psz_name,
p_item->psz_name );
asprintf( &psz_option, "no-%s", p_item->psz_name );
PrintOption( psz_option, p_item->i_short, psz_exclusive,
p_item->psz_text, p_item->psz_longtext, psz_arguments );
free( psz_exclusive );
free( psz_option );
asprintf( &psz_exclusive, "--no-%s --%s", p_item->psz_name,
p_item->psz_name );
asprintf( &psz_option, "no%s", p_item->psz_name );
PrintOption( psz_option, p_item->i_short, psz_exclusive,
p_item->psz_text, p_item->psz_longtext, psz_arguments );
free( psz_exclusive );
free( psz_option );
return;
case CONFIG_SECTION:
// p_control = new SectionConfigControl( p_this, p_item, parent );
break;
default:
break;
}
PrintOption( p_item->psz_name, p_item->i_short, NULL,
p_item->psz_text, p_item->psz_longtext, psz_arguments );
}
void PrintOption( char *psz_option, char i_short, char *psz_exclusive,
char *psz_text, char *psz_longtext, char *psz_args )
{
char *foo;
if( !psz_longtext ||
strchr( psz_longtext, '\n' ) ||
strchr( psz_longtext, '(' ) ) psz_longtext = psz_text;
while( (foo = strchr( psz_text, '"' ))) *foo='\'';
if( i_short )
{
if( !psz_exclusive ) psz_exclusive = "";
else asprintf( &psz_exclusive, " %s", psz_exclusive );
printf( " \"(-%c%s)--%s[%s]", i_short, psz_exclusive,
psz_option, psz_text );
if( psz_args )
printf( ":%s:%s\"\\\n", psz_longtext, psz_args );
else
printf( "\"\\\n" );
printf( " \"(--%s%s)-%c[%s]", psz_option, psz_exclusive,
i_short, psz_text );
if( psz_args )
printf( ":%s:%s\"\\\n", psz_longtext, psz_args );
else
printf( "\"\\\n" );
}
else
{
if( psz_exclusive )
printf( " \"(%s)--%s[%s]", psz_exclusive, psz_option,
psz_text );
else
printf( " \"--%s[%s]", psz_option, psz_text );
if( psz_args )
printf( ":%s:%s\"\\\n", psz_longtext, psz_args );
else
printf( "\"\\\n" );
}
}
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