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%{
/* -*- Mode: C -*-
======================================================================
FILE: icalssyacc.y
CREATOR: eric 08 Aug 2000
DESCRIPTION:
$Id: icalssyacc.y,v 1.1 2000/12/11 22:06:18 federico Exp $
$Locker: $
(C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org
This program is free software; you can redistribute it and/or modify
it under the terms of either:
The LGPL as published by the Free Software Foundation, version
2.1, available at: http://www.fsf.org/copyleft/lesser.html
Or:
The Mozilla Public License Version 1.0. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
The Original Code is eric. The Initial Developer of the Original
Code is Eric Busboom
======================================================================*/
#include <stdlib.h>
#include <string.h> /* for strdup() */
#include <limits.h> /* for SHRT_MAX*/
#include "ical.h"
#include "pvl.h"
#include "icalgaugeimpl.h"
extern struct icalgauge_impl *icalss_yy_gauge;
void ssyacc_add_where(struct icalgauge_impl* impl, char* str1,
enum icalparameter_xliccomparetype compare , char* str2);
void ssyacc_add_select(struct icalgauge_impl* impl, char* str1);
void ssyacc_add_from(struct icalgauge_impl* impl, char* str1);
void move_where(int w);
void sserror(char *s); /* Don't know why I need this.... */
%}
%union {
char* v_string;
}
%token <v_string> STRING
%token SELECT FROM WHERE COMMA EQUALS NOTEQUALS LESS GREATER LESSEQUALS
%token GREATEREQUALS AND OR EOL END
%%
query_min: SELECT select_list FROM from_list WHERE where_list
| error {
icalparser_clear_flex_input();
yyclearin;
}
;
select_list:
STRING {ssyacc_add_select(icalss_yy_gauge,$1);}
| select_list COMMA STRING {ssyacc_add_select(icalss_yy_gauge,$3);}
;
from_list:
STRING {ssyacc_add_from(icalss_yy_gauge,$1);}
| from_list COMMA STRING {ssyacc_add_from(icalss_yy_gauge,$3);}
;
where_clause:
/* Empty */
| STRING EQUALS STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_EQUAL,$3); }
| STRING NOTEQUALS STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_NOTEQUAL,$3); }
| STRING LESS STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_LESS,$3); }
| STRING GREATER STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_GREATER,$3); }
| STRING LESSEQUALS STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_LESSEQUAL,$3); }
| STRING GREATEREQUALS STRING {ssyacc_add_where(icalss_yy_gauge,$1,ICAL_XLICCOMPARETYPE_GREATEREQUAL,$3); }
;
where_list:
where_clause {move_where(1);}
| where_list AND where_clause {move_where(2);}
| where_list OR where_clause {move_where(3);}
;
%%
void ssyacc_add_where(struct icalgauge_impl* impl, char* str1,
enum icalparameter_xliccomparetype compare , char* str2)
{
icalproperty *p;
icalvalue *v;
icalproperty_kind kind;
kind = icalenum_string_to_property_kind(str1);
if(kind == ICAL_NO_PROPERTY){
assert(0);
}
p = icalproperty_new(kind);
v = icalvalue_new_text(str2);
if(v == 0){
assert(0);
}
icalproperty_set_value(p,v);
icalproperty_add_parameter(p,icalparameter_new_xliccomparetype(compare));
icalcomponent_add_property(impl->where,p);
}
void ssyacc_add_select(struct icalgauge_impl* impl, char* str1)
{
icalproperty *p;
icalproperty_kind pkind;
icalcomponent_kind ckind = ICAL_NO_COMPONENT;
char* c;
char* compstr;
char* propstr;
/* Is there a period in str1 ? If so, the string specified both a
component and a property*/
if( (c = strrchr(str1,'.')) != 0){
compstr = str1;
propstr = c+1;
*c = '\0';
} else {
compstr = 0;
propstr = str1;
}
/* Handle the case where a component was specified */
if(compstr != 0){
ckind = icalenum_string_to_component_kind(compstr);
if(ckind == ICAL_NO_COMPONENT){
assert(0);
}
} else {
ckind = ICAL_NO_COMPONENT;
}
/* If the property was '*', then accept all properties */
if(strcmp("*",propstr) == 0) {
pkind = ICAL_ANY_PROPERTY;
} else {
pkind = icalenum_string_to_property_kind(str1);
}
if(pkind == ICAL_NO_PROPERTY){
assert(0);
}
if(ckind == ICAL_NO_COMPONENT){
p = icalproperty_new(pkind);
assert(p!=0);
icalcomponent_add_property(impl->select,p);
} else {
icalcomponent *comp =
icalcomponent_new(ckind);
p = icalproperty_new(pkind);
assert(p!=0);
icalcomponent_add_property(comp,p);
icalcomponent_add_component(impl->select,comp);
}
}
void ssyacc_add_from(struct icalgauge_impl* impl, char* str1)
{
icalcomponent *c;
icalcomponent_kind ckind;
ckind = icalenum_string_to_component_kind(str1);
if(ckind == ICAL_NO_COMPONENT){
assert(0);
}
c = icalcomponent_new(ckind);
icalcomponent_add_component(impl->from,c);
}
void move_where(int w)
{
}
void sserror(char *s){
fprintf(stderr,"Parse error \'%s\'\n", s);
}
|
