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parser still not quite working on both queries and smart playlists

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This commit is contained in:
Ron Pedde 2006-03-09 23:54:00 +00:00
parent 43afe26932
commit 2b6b8cd208
7 changed files with 141 additions and 112 deletions
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5
src/config-driver.c
View File

@ -4,7 +4,12 @@
#include <stdio.h>
#define os_opensyslog()
#define os_syslog(a,b)
#define os_closesyslog()
#include "conf.h"
#include "err.h"
int main(int argc, char *argv[]) {

2
src/config.mk
View File

@ -1,6 +1,6 @@
# $Id$
CC=gcc
CFLAGS := $(CFLAGS) -g -DHAVE_CONFIG_H -I. -I..
CFLAGS := $(CFLAGS) -g -DHAVE_CONFIG_H -I. -I.. -DERR_LEAN
LDFLAGS := $(LDFLAGS)
TARGET = conf
OBJECTS=config-driver.o conf.o ll.o err.o

4
src/err.c
View File

@ -41,7 +41,9 @@
#include <string.h>
#include "err.h"
#include "os.h"
#ifndef ERR_LEAN
# include "os.h"
#endif
static int err_debuglevel=0; /**< current debuglevel, set from command line with -d */
static int err_logdestination=LOGDEST_STDERR; /**< current log destination */

6
src/err.h
View File

@ -74,4 +74,10 @@ extern int err_setdebugmask(char *list);
#define DPRINTF err_log
#ifdef ERR_LEAN
# define os_syslog(a,b)
# define os_opensyslog(a)
# define os_closesyslog(a)
#endif
#endif /* __ERR_H__ */

2
src/parser-driver.c
View File

@ -22,7 +22,7 @@ int main(int argc, char *argv[]) {
while((option = getopt(argc, argv, "d:")) != -1) {
switch(option) {
case 'd':
err_debuglevel = atoi(optarg);
err_setlevel(atoi(optarg));
break;
default:
fprintf(stderr,"Error: unknown option (%c)\n\n",option);

2
src/parser.mk
View File

@ -1,5 +1,5 @@
CC=gcc
CFLAGS := $(CFLAGS) -g -I/sw/include -DHAVE_CONFIG_H -I. -I.. -Wall
CFLAGS := $(CFLAGS) -g -I/sw/include -DHAVE_CONFIG_H -I. -I.. -Wall -DERR_LEAN
TARGET=parser
OBJECTS=parser-driver.o smart-parser.o err.o

142
src/smart-parser.c
View File

@ -56,6 +56,11 @@ typedef struct tag_sp_node {
#define SP_OPTYPE_INT 2
#define SP_OPTYPE_DATE 3
#define SP_HINT_NONE 0
#define SP_HINT_STRING 1
#define SP_HINT_INT 2
#define SP_HINT_DATE 3
/*
#define T_ID 0x00
#define T_PATH 0x01
@ -184,10 +189,10 @@ typedef struct tag_fieldlookup {
char *name;
} FIELDLOOKUP;
/* normal terminators, in-string terminators, escapes */
char *sp_terminators[2][3] = {
{ " \t\n\r\"<>=()|&!", "\"","\"" },
{ "()'+: -,", "')", "\\*'" }
/* normal terminators, in-string terminators, escapes, quotes */
char *sp_terminators[2][4] = {
{ " \t\n\r\"<>=()|&!", "\"","\"","\"" },
{ "()'+: -,", "')", "\\*'","" }
};
FIELDLOOKUP sp_symbols_0[] = {
@ -404,16 +409,16 @@ time_t sp_isdate(char *string) {
* @param tree current working parse tree.
* @returns next token (token, not the value)
*/
int sp_scan(PARSETREE tree) {
int sp_scan(PARSETREE tree, int hint) {
char *terminator=NULL;
char *tail;
int advance=0;
FIELDLOOKUP *pfield=sp_fields[tree->token_list];
int len;
int found;
int numval;
int is_qstr;
time_t tval;
int found_symbol;
char *qstr;
if(tree->token.token_id & 0x2000) {
if(tree->token.data.cvalue)
@ -441,40 +446,45 @@ int sp_scan(PARSETREE tree) {
DPRINTF(E_SPAM,L_PARSE,"Current offset: %d, char: %c\n",
tree->token_pos, *(tree->current));
/* check singletons */
found_symbol=0;
if(hint == SP_HINT_STRING) {
terminator=sp_terminators[tree->token_list][1];
tree->in_string = 1;
} else {
terminator = sp_terminators[tree->token_list][0];
tree->in_string = 0;
}
/* check symbols */
if(!tree->in_string) {
pfield=sp_symbols[tree->token_list];
while((pfield->name) && (!found_symbol)) {
while(pfield->name) {
if(!strncmp(pfield->name,tree->current,strlen(pfield->name))) {
/* that's a match */
tree->current += strlen(pfield->name);
tree->token.token_id = pfield->type;
found_symbol = 1;
return pfield->type;
}
pfield++;
}
}
if((!found_symbol) && (*tree->current == '"')) {
qstr = sp_terminators[tree->token_list][3];
is_qstr = (strstr(qstr,tree->current) != NULL);
if(strlen(qstr)) { /* strings ARE quoted */
if(hint == SP_HINT_STRING) { /* MUST be a quote */
if(!is_qstr)
return T_ERROR;
} else {
tree->in_string = 1; /* guess we're in a string */
tree->current++;
tree->in_string = !tree->in_string;
tree->token.token_id = T_QUOTE;
}
}
if(!found_symbol) { /* either a keyword token or a quoted string */
DPRINTF(E_SPAM,L_PARSE,"keyword or string!\n");
/* walk to a terminator */
tail = tree->current;
/* out-of-string terminator */
terminator = sp_terminators[tree->token_list][0];
if(tree->in_string) { /* in-string terminator */
terminator=sp_terminators[tree->token_list][1];
}
/* FIXME: escaped characters */
while((*tail) && (!strchr(terminator,*tail))) {
tail++;
@ -490,6 +500,9 @@ int sp_scan(PARSETREE tree) {
while(pfield->name) {
if(strlen(pfield->name) == len) {
if(strncasecmp(pfield->name,tree->current,len) == 0) {
DPRINTF(E_DBG,L_PARSE,"%*s Returning token %04x (%s)\n",
tree->level," ", tree->token.token_id,
pfield->name);
found=1;
break;
}
@ -514,7 +527,8 @@ int sp_scan(PARSETREE tree) {
tree->token.data.cvalue[len] = '\x0';
}
/* check for numberic? */
if((hint == SP_HINT_NONE) || (hint == SP_HINT_INT)) {
/* check for numeric? */
if(tree->token.token_id == T_STRING &&
(!tree->in_string) &&
sp_isnumber(tree->token.data.cvalue)) {
@ -524,7 +538,9 @@ int sp_scan(PARSETREE tree) {
tree->token.data.ivalue = numval;
tree->token.token_id = T_NUMBER;
}
}
if((hint == SP_HINT_NONE) || (hint == SP_HINT_DATE)) {
if(tree->token.token_id == T_STRING &&
(!tree->in_string) &&
(tval=sp_isdate(tree->token.data.cvalue))) {
@ -532,9 +548,20 @@ int sp_scan(PARSETREE tree) {
tree->token.data.tvalue = tval;
tree->token.token_id = T_DATE;
}
}
tree->current=tail;
/* if we are in_string, and we have quoted strings, ensure we
* have a quote */
is_qstr = (strstr(qstr,tree->current) != NULL);
if((!found) && strlen(qstr) && (!is_qstr) && (tree->in_string)) {
DPRINTF(E_INF,L_PARSE,"Missing closing quotes\n");
if(tree->token.token_id & 0x2000) {
free(tree->token.data.cvalue);
}
tree->token.token_id = T_ERROR;
}
DPRINTF(E_DBG,L_PARSE,"%*s Returning token %04x\n",tree->level," ",
@ -595,7 +622,7 @@ int sp_parse(PARSETREE tree, char *term) {
if(tree->tree)
sp_free_node(tree->tree);
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
tree->tree = sp_parse_phrase(tree);
if(tree->tree) {
@ -662,7 +689,7 @@ SP_NODE *sp_parse_aexpr(PARSETREE tree) {
pnew->op_type = SP_OPTYPE_ANDOR;
pnew->left.node = expr;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
pnew->right.node = sp_parse_expr(tree);
if(!pnew->right.node) {
@ -704,7 +731,7 @@ SP_NODE *sp_parse_oexpr(PARSETREE tree) {
pnew->op_type = SP_OPTYPE_ANDOR;
pnew->left.node = expr;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
pnew->right.node = sp_parse_aexpr(tree);
if(!pnew->right.node) {
@ -733,10 +760,10 @@ SP_NODE *sp_parse_expr(PARSETREE tree) {
sp_enter_exit(tree,"sp_parse_expr",1,NULL);
if(tree->token.token_id == T_OPENPAREN) {
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
expr = sp_parse_oexpr(tree);
if((expr) && (tree->token.token_id == T_CLOSEPAREN)) {
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
} else {
/* Error: expecting close paren */
sp_set_error(tree,SP_E_CLOSE);
@ -807,11 +834,11 @@ SP_NODE *sp_parse_criterion(PARSETREE tree) {
memset(pnew,0x00,sizeof(SP_NODE));
pnew->left.field = strdup(tree->token.data.cvalue);
sp_scan(tree); /* scan past the string field we know is there */
sp_scan(tree,SP_HINT_NONE);/* scan past the string field we know is there */
if(tree->token.token_id == T_NOT) {
pnew->not_flag=1;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
}
switch(tree->token.token_id) {
@ -830,28 +857,17 @@ SP_NODE *sp_parse_criterion(PARSETREE tree) {
}
if(result) {
sp_scan(tree);
/* should be sitting on quote literal string quote */
if(tree->token.token_id == T_QUOTE) {
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
/* should be sitting on string literal */
if(tree->token.token_id == T_STRING) {
result = 1;
pnew->right.cvalue=strdup(tree->token.data.cvalue);
sp_scan(tree);
if(tree->token.token_id == T_QUOTE) {
result=1;
sp_scan(tree);
} else {
sp_set_error(tree,SP_E_CLOSEQUOTE);
DPRINTF(E_SPAM,L_PARSE,"Expecting closign quote\n");
}
} else {
sp_set_error(tree,SP_E_STRING);
DPRINTF(E_SPAM,L_PARSE,"Expecting literal string\n");
}
sp_scan(tree,SP_HINT_NONE);
} else {
sp_set_error(tree,SP_E_OPENQUOTE);
DPRINTF(E_SPAM,L_PARSE,"Expecting opening quote\n");
DPRINTF(E_SPAM,L_PARSE,"Expecting string, got %04X\n",
tree->token.token_id);
result = 0;
}
}
@ -883,11 +899,11 @@ SP_NODE *sp_parse_criterion(PARSETREE tree) {
memset(pnew,0x00,sizeof(SP_NODE));
pnew->left.field = strdup(tree->token.data.cvalue);
sp_scan(tree); /* scan past the int field we know is there */
sp_scan(tree,SP_HINT_NONE); /* scan past the int field we know is there */
if(tree->token.token_id == T_NOT) {
pnew->not_flag=1;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
}
switch(tree->token.token_id) {
@ -909,12 +925,12 @@ SP_NODE *sp_parse_criterion(PARSETREE tree) {
}
if(result) {
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
/* should be sitting on a literal string */
if(tree->token.token_id == T_NUMBER) {
result = 1;
pnew->right.ivalue=tree->token.data.ivalue;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
} else {
/* Error: Expecting number */
sp_set_error(tree,SP_E_NUMBER);
@ -953,11 +969,11 @@ SP_NODE *sp_parse_date_criterion(PARSETREE tree) {
memset(pnew,0x00,sizeof(SP_NODE));
pnew->left.field = strdup(tree->token.data.cvalue);
sp_scan(tree); /* scan past the date field we know is there */
sp_scan(tree,SP_HINT_NONE); /* scan past the date field we know is there */
if(tree->token.token_id == T_NOT) {
pnew->not_flag=1;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
}
switch(tree->token.token_id) {
@ -988,7 +1004,7 @@ SP_NODE *sp_parse_date_criterion(PARSETREE tree) {
}
if(result) {
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
/* should be sitting on a date */
if((pnew->right.tvalue = sp_parse_date(tree))) {
result=1;
@ -1030,11 +1046,11 @@ time_t sp_parse_date(PARSETREE tree) {
switch(tree->token.token_id) {
case T_TODAY:
result = time(NULL);
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
case T_DATE:
result = tree->token.data.tvalue;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
}
@ -1052,7 +1068,7 @@ time_t sp_parse_date(PARSETREE tree) {
if(tree->token.token_id == T_AFTER)
before = 0;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
result = sp_parse_date(tree);
if(result) {
if(before) {
@ -1087,23 +1103,23 @@ time_t sp_parse_date_interval(PARSETREE tree) {
sp_set_error(tree,SP_E_NUMBER);
} else {
count = tree->token.data.ivalue;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
switch(tree->token.token_id) {
case T_DAY:
result = count * 3600 * 24;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
case T_WEEK:
result = count * 3600 * 24 * 7;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
case T_MONTH:
result = count * 3600 * 24 * 30;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
case T_YEAR:
result = count * 3600 * 24 * 365;
sp_scan(tree);
sp_scan(tree,SP_HINT_NONE);
break;
default:
result=0;