mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-09-19 17:49:59 +02:00
131 lines
3.4 KiB
Text
131 lines
3.4 KiB
Text
/*
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* Advanced Linux Sound Architecture Control Program
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* Copyright (c) 1998 by Perex, APS, University of South Bohemia
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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%{
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#include "alsactl.h"
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#include "alsactl_parser.h"
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#define YY_NO_UNPUT
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#undef YY_CDECL
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#define YY_CDECL int YY_PROTO(yylex( void ));
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int linecount;
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%}
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%%
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/* special characters */
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"{"|"}" return yytext[0];
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"("|")" return yytext[0];
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")"[ \t]*"{" return L_DOUBLE1;
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"," return yytext[0];
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/* tokens */
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soundcard return L_SOUNDCARD;
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control return L_CONTROL;
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mixer return L_MIXER;
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channel return L_CHANNEL;
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stereo return L_STEREO;
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mono return L_MONO;
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switch return L_SWITCH;
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rawdata return L_RAWDATA;
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pcm return L_PCM;
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rawmidi return L_RAWMIDI;
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playback return L_PLAYBACK;
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record return L_RECORD;
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output return L_OUTPUT;
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input return L_INPUT;
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iec958ocs return L_IEC958OCS;
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3d return L_3D;
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reset return L_RESET;
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user return L_USER;
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valid return L_VALID;
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data return L_DATA;
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protected return L_PROTECT;
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pre2 return L_PRE2;
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fslock return L_FSLOCK;
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type return L_TYPE;
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gstatus return L_GSTATUS;
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enable return L_ENABLE;
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disable return L_DISABLE;
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mute return L_MUTE;
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swout return L_SWOUT;
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swin return L_SWIN;
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/* boolean */
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false|off|no return L_FALSE;
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true|on|yes return L_TRUE;
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/* integers */
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[0-9]+ { yylval.i_value = atoi( yytext ); return L_INTEGER; }
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0x[0-9a-f]+ { char *end;
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yylval.i_value = strtol( yytext, &end, 0 );
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return L_INTEGER; }
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/* byte array */
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"@"([0-9a-f]{2}:){0,31}([0-9a-f]{2})"@" {
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char *p = yytext + 1, x[3];
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unsigned char *d;
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int val;
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yylval.a_value = d = (unsigned char *)malloc( 32 );
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while ( p ) {
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strncpy( x, p, 2 ); x[2] = '\0';
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sscanf( x, "%02x", &val );
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*d++ = val;
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}
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return L_BYTEARRAY; }
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/* strings */
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\"[^\"]*\" { yytext[ strlen( yytext ) - 1 ] = 0;
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yylval.s_value = strdup( &yytext[ 1 ] );
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return L_STRING; }
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\'[^\']*\' { yytext[ strlen( yytext ) - 1 ] = 0;
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yylval.s_value = strdup( &yytext[ 1 ] );
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return L_STRING; }
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[a-z0-9/\~@-_\+=:\.]+ { yylval.s_value = strdup( yytext );
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return L_STRING; }
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$[a-z0-9/\~@-_\+=:\.]+ { yylval.s_value = strdup( getenv( &yytext[ 1 ] ) );
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return L_STRING; }
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/* comments & whitespaces */
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[#\;][^\n]*\n { linecount++; }
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[ \t]+ ;
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\n { linecount++; }
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. fprintf( stderr, "alsactl: discarding char '%c' - line %i\n", yytext[0], linecount + 1 );
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%%
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#ifndef yywrap
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int yywrap(void) /* do this avoid to do -lfl */
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{
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return 1;
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}
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#endif
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