#ifndef __stylesheet_h_
#define __stylesheet_h_

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>

typedef XrmQuark SSID;
SSID StringToSSID(char *str);
#define SSIDToString(id)	XrmQuarkToString(id)

typedef enum {
	SSTERM_NUMBER,
	SSTERM_STRING,
	SSTERM_PERCENTAGE,
	SSTERM_LENGTH_PT,
	SSTERM_LENGTH_MM,
	SSTERM_LENGTH_CM,
	SSTERM_LENGTH_PC,
	SSTERM_LENGTH_IN,
	SSTERM_LENGTH_PX,
	SSTERM_EMS,
	SSTERM_EXS,
	SSTERM_IDENT,
	SSTERM_HEXCOLOR,
	SSTERM_URL,
	SSTERM_RGB,
} SSTermType;

typedef struct SSTerm {
	SSTermType type;
	double num;
	SSID id;
	char *str;
} SSTerm;

typedef SSTerm SSExpr;

typedef struct SSDeclaration {
	SSID ident;
	SSTerm *term;
	int priority;
	int ref;
} SSDeclaration;

typedef struct SSDeclarationSet {
	struct SSDeclarationSet *next;
	SSDeclaration *decl;
} SSDeclarationSet, *SSDeclarationSetList;

typedef struct SSSimpleSelector {
	struct SSSimpleSelector *next;
	SSID ident;
	SSID id;
	SSID class;
	int pseudoclass;
} SSSimpleSelector, *SSSimpleSelectorList;

typedef struct SSSelector {
	SSSimpleSelectorList selectors;
	int pseudoelement;
	int specificity;
} SSSelector, *SSSelectorList;

typedef struct SSSelectorSet {
	struct SSSelectorSet *next;
	SSSelector *sel;
} SSSelectorSet, *SSSelectorSetList;

/* for yacc */
SSTerm *term_new(SSTermType type);
void term_delete(SSTerm *p);
void term_show(SSTerm *p);

SSDeclaration *declaration_new(SSID ident, SSTerm *term, int pr);
void declaration_delete(SSDeclaration *p);
void declaration_show(SSDeclaration *p);
SSDeclarationSet *declarationset_new(SSDeclaration *d);
void declarationset_delete(SSDeclarationSet *p);
void declarationsetlist_delete(SSDeclarationSetList l);

SSSimpleSelector *simpleselector_new(SSID, SSID, SSID, int pc);
void simpleselector_delete(SSSimpleSelector *p);
void simpleselectorlist_delete(SSSimpleSelectorList l);

SSSelector *selector_new(SSSimpleSelectorList sl, int pe);
void selector_delete(SSSelector *p);
void selector_show(SSSelector *p);

SSSelectorSet *selectorset_new(SSSelector *s);
void selectorset_delete(SSSelectorSet *p);
void selectorsetlist_delete(SSSelectorSetList l);

typedef struct StyleSheet {
	struct StyleSheet *next;
	SSSelector *sel;
	SSDeclarationSetList  decls;
} StyleSheet, *StyleSheetList;

StyleSheet *stylesheet_new(void);
void stylesheet_delete(StyleSheet *p);
int stylesheet_read(FILE *fp, StyleSheet *ss);

int simpleselector_eq(SSSimpleSelector *s1, SSSimpleSelector *s2);
int selector_eq(SSSelector *s1, SSSelector *s2);
StyleSheet *stylesheet_find(StyleSheetList base, SSSelector *s1);
void stylesheet_add(SSSelectorSetList s, SSDeclarationSetList d);

void stylesheet_show(StyleSheet *p);
void stylesheetlist_show(StyleSheetList l);
void stylesheetlist_delete(StyleSheetList l);

/* style_y.y */
int style_readstyle(FILE *fp, StyleSheetList *ss);

typedef struct StyleSheetSet {
	struct StyleSheetSet *next;
	int origin;
	StyleSheet *style;
} StyleSheetSet, *StyleSheetSetList;
	
StyleSheetSet *stylesheetset_new(void);
void stylesheetset_delete(StyleSheetSet *p);
void stylesheetsetlist_delete(StyleSheetSetList l);
void stylesheetsetlist_show(StyleSheetSetList l);

#endif