[fontconfig.git] / src / fcint.h

/*
 * $RCSId: xc/lib/fontconfig/src/fcint.h,v 1.27 2002/08/31 22:17:32 keithp Exp $
 *
 * Copyright © 2000 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _FCINT_H_
#define _FCINT_H_

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <time.h>
#include <fontconfig/fontconfig.h>
#include <fontconfig/fcprivate.h>
#include <fontconfig/fcfreetype.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

/* unused */
typedef struct _FcSymbolic {
    const char	*name;
    int		value;
} FcSymbolic;

#ifndef FC_CONFIG_PATH
#define FC_CONFIG_PATH "fonts.conf"
#endif

#define FC_FONT_FILE_INVALID	((FcChar8 *) ".")
#define FC_FONT_FILE_DIR	((FcChar8 *) ".dir")

#ifdef _WIN32
#define FC_SEARCH_PATH_SEPARATOR ';'
#else
#define FC_SEARCH_PATH_SEPARATOR ':'
#endif

#define FC_DBG_MATCH	1
#define FC_DBG_MATCHV	2
#define FC_DBG_EDIT	4
#define FC_DBG_FONTSET	8
#define FC_DBG_CACHE	16
#define FC_DBG_CACHEV	32
#define FC_DBG_PARSE	64
#define FC_DBG_SCAN	128
#define FC_DBG_SCANV	256
#define FC_DBG_MEMORY	512
#define FC_DBG_CONFIG	1024

#define FC_MEM_CHARSET	    0
#define FC_MEM_CHARLEAF	    1
#define FC_MEM_FONTSET	    2
#define FC_MEM_FONTPTR	    3
#define FC_MEM_OBJECTSET    4
#define FC_MEM_OBJECTPTR    5
#define FC_MEM_MATRIX	    6
#define FC_MEM_PATTERN	    7
#define FC_MEM_PATELT	    8
#define FC_MEM_VALLIST	    9
#define FC_MEM_SUBSTATE	    10
#define FC_MEM_STRING	    11
#define FC_MEM_LISTBUCK	    12
#define FC_MEM_STRSET	    13
#define FC_MEM_STRLIST	    14
#define FC_MEM_CONFIG	    15
#define FC_MEM_LANGSET	    16
#define FC_MEM_ATOMIC	    17
#define FC_MEM_BLANKS	    18
#define FC_MEM_CACHE	    19
#define FC_MEM_STRBUF	    20
#define FC_MEM_SUBST	    21
#define FC_MEM_OBJECTTYPE   22
#define FC_MEM_CONSTANT	    23
#define FC_MEM_TEST	    24
#define FC_MEM_EXPR	    25
#define FC_MEM_VSTACK	    26
#define FC_MEM_ATTR	    27
#define FC_MEM_PSTACK	    28
#define FC_MEM_STATICSTR    29

#define FC_MEM_NUM	    30

typedef enum _FcValueBinding {
    FcValueBindingWeak, FcValueBindingStrong, FcValueBindingSame
} FcValueBinding;

typedef struct _FcStrSetPtr {
    FcStorage               storage;
    union {
        int		    stat;
        struct _FcStrSet    *dyn;
    } u;
} FcStrSetPtr;

typedef struct _FcValueListPtr {
    FcStorage               storage;
    union {
        int		    stat;
        struct _FcValueList *dyn;
    } u;
} FcValueListPtr;

typedef struct _FcValueList {
    FcValueListPtr	    next;

    FcValue		    value;
    FcValueBinding	    binding;
} FcValueList;

typedef struct _FcPatternEltPtr {
    FcStorage               storage;
    union {
        int		    stat;
        struct _FcPatternElt *dyn;
    } u;
} FcPatternEltPtr;

typedef struct _FcPatternElt {
    FcObjectPtr             object;
    FcValueListPtr          values;
} FcPatternElt;

struct _FcPattern {
    int		    num;
    int		    size;
    FcPatternEltPtr elts;
    int		    ref;
};

typedef enum _FcOp {
    FcOpInteger, FcOpDouble, FcOpString, FcOpMatrix, FcOpBool, FcOpCharSet, 
    FcOpNil,
    FcOpField, FcOpConst,
    FcOpAssign, FcOpAssignReplace, 
    FcOpPrependFirst, FcOpPrepend, FcOpAppend, FcOpAppendLast,
    FcOpQuest,
    FcOpOr, FcOpAnd, FcOpEqual, FcOpNotEqual, 
    FcOpContains, FcOpListing, FcOpNotContains,
    FcOpLess, FcOpLessEqual, FcOpMore, FcOpMoreEqual,
    FcOpPlus, FcOpMinus, FcOpTimes, FcOpDivide,
    FcOpNot, FcOpComma, FcOpFloor, FcOpCeil, FcOpRound, FcOpTrunc,
    FcOpInvalid
} FcOp;

typedef struct _FcExpr {
    FcOp   op;
    union {
	int	    ival;
	double	    dval;
	FcChar8	    *sval;
	FcMatrix    *mval;
	FcBool	    bval;
	FcCharSet   *cval;
	char	    *field;
	FcChar8	    *constant;
	struct {
	    struct _FcExpr *left, *right;
	} tree;
    } u;
} FcExpr;

typedef enum _FcQual {
    FcQualAny, FcQualAll, FcQualFirst, FcQualNotFirst
} FcQual;

#define FcMatchDefault	((FcMatchKind) -1)

typedef struct _FcTest {
    struct _FcTest	*next;
    FcMatchKind		kind;
    FcQual		qual;
    const char		*field;
    FcOp		op;
    FcExpr		*expr;
} FcTest;

typedef struct _FcEdit {
    struct _FcEdit *next;
    const char	    *field;
    FcOp	    op;
    FcExpr	    *expr;
    FcValueBinding  binding;
} FcEdit;

typedef struct _FcSubst {
    struct _FcSubst	*next;
    FcTest		*test;
    FcEdit		*edit;
} FcSubst;

typedef struct _FcCharLeaf {
    FcChar32	map[256/32];
} FcCharLeaf;

#define FC_REF_CONSTANT	    -1

struct _FcCharSet {
    int		    ref;	/* reference count */
    int		    num;	/* size of leaves and numbers arrays */
    FcStorage	    storage;
    union {
	struct {
	    FcCharLeaf  **leaves;
	    FcChar16    *numbers;
	} dyn;
	struct {
	    int	    	leafidx_offset;
	    int	      	numbers_offset;
	} stat;
    } u;
};

struct _FcStrSet {
    int		    ref;	/* reference count */
    int		    num;
    int		    size;
    FcStorage	    storage;
    union {
	FcChar8	    **strs;
	int	    stridx_offset;
    } u;
};

struct _FcStrList {
    FcStrSet	    *set;
    int		    n;
};

typedef struct _FcStrBuf {
    FcChar8 *buf;
    FcBool  allocated;
    FcBool  failed;
    int	    len;
    int	    size;
} FcStrBuf;

typedef struct _FcCache {
    int	    magic;
    off_t   fontsets_offset;
    off_t   pattern_offset;     int pattern_length;
    off_t   patternelt_offset;  int patternelt_length;
    off_t   valuelist_offset;   int valuelist_length;
    off_t   object_offset;	int object_length;
    off_t   objectcontent_offset; int objectcontent_length;
    off_t   langsets_offset;    int langsets_length;
    off_t   charsets_offset;    int charsets_length;
    off_t   charset_leaf_offset; int charset_num_sum;
    off_t   charset_leafidx_offset; 
    off_t   charset_numbers_offset;
    off_t   matrices_offset;    int matrices_length;
    off_t   strsets_offset;     int strsets_length;
    off_t   strsets_idx_offset; int strsets_idx_length;
    off_t   strset_buf_offset;  int strset_buf_length;
} FcCache;

/*
 * To map adobe glyph names to unicode values, a precomputed hash
 * table is used
 */

typedef struct _FcGlyphName {
    FcChar32	ucs;		/* unicode value */
    FcChar8	name[1];	/* name extends beyond struct */
} FcGlyphName;

/*
 * To perform case-insensitive string comparisons, a table
 * is used which holds three different kinds of folding data.
 * 
 * The first is a range of upper case values mapping to a range
 * of their lower case equivalents.  Within each range, the offset
 * between upper and lower case is constant.
 *
 * The second is a range of upper case values which are interleaved
 * with their lower case equivalents.
 * 
 * The third is a set of raw unicode values mapping to a list
 * of unicode values for comparison purposes.  This allows conversion
 * of ß to "ss" so that SS, ss and ß all match.  A separate array
 * holds the list of unicode values for each entry.
 *
 * These are packed into a single table.  Using a binary search,
 * the appropriate entry can be located.
 */

#define FC_CASE_FOLD_RANGE	    0
#define FC_CASE_FOLD_EVEN_ODD	    1
#define FC_CASE_FOLD_FULL	    2

typedef struct _FcCaseFold {
    FcChar32	upper;
    FcChar16	method : 2;
    FcChar16	count : 14;
    short    	offset;	    /* lower - upper for RANGE, table id for FULL */
} FcCaseFold;

#define FC_MAX_FILE_LEN	    4096

/*
 * The per-user ~/.fonts.cache-<version> file is loaded into
 * this data structure.  Each directory gets a substructure
 * which is validated by comparing the directory timestamp with
 * that saved in the cache.  When valid, the entire directory cache
 * can be immediately loaded without reading the directory.  Otherwise,
 * the files are checked individually; updated files are loaded into the
 * cache which is then rewritten to the users home directory
 */

#define FC_CACHE_MAGIC 0x12345678
#define FC_GLOBAL_CACHE_DIR_HASH_SIZE	    37
#define FC_GLOBAL_CACHE_FILE_HASH_SIZE	    67

typedef struct _FcGlobalCacheInfo {
    unsigned int		hash;
    FcChar8			*file;
    time_t			time;
    FcBool			referenced;
} FcGlobalCacheInfo;

typedef struct _FcGlobalCacheFile {
    struct _FcGlobalCacheFile	*next;
    FcGlobalCacheInfo		info;
    int				id;
    FcChar8			*name;
} FcGlobalCacheFile;

typedef struct _FcGlobalCacheDir FcGlobalCacheDir;

typedef struct _FcGlobalCacheSubdir {
    struct _FcGlobalCacheSubdir	*next;
    FcGlobalCacheDir		*ent;
} FcGlobalCacheSubdir;

struct _FcGlobalCacheDir {
    struct _FcGlobalCacheDir	*next;
    FcGlobalCacheInfo    	info;
    int				len;
    FcGlobalCacheFile		*ents[FC_GLOBAL_CACHE_FILE_HASH_SIZE];
    FcGlobalCacheSubdir		*subdirs;
};

typedef struct _FcGlobalCache {
    FcGlobalCacheDir		*ents[FC_GLOBAL_CACHE_DIR_HASH_SIZE];
    FcBool			updated;
    FcBool			broken;
    int				entries;
    int				referenced;
} FcGlobalCache;

struct _FcAtomic {
    FcChar8	*file;		/* original file name */
    FcChar8	*new;		/* temp file name -- write data here */
    FcChar8	*lck;		/* lockfile name (used for locking) */
    FcChar8	*tmp;		/* tmpfile name (used for locking) */
};

struct _FcBlanks {
    int		nblank;
    int		sblank;
    FcChar32	*blanks;
};

struct _FcConfig {
    /*
     * File names loaded from the configuration -- saved here as the
     * cache file must be consulted before the directories are scanned,
     * and those directives may occur in any order
     */
    FcStrSet	*configDirs;	    /* directories to scan for fonts */
    FcChar8	*cache;		    /* name of per-user cache file */
    /*
     * Set of allowed blank chars -- used to
     * trim fonts of bogus glyphs
     */
    FcBlanks	*blanks;
    /*
     * List of directories containing fonts,
     * built by recursively scanning the set 
     * of configured directories
     */
    FcStrSet	*fontDirs;
    /*
     * Names of all of the configuration files used
     * to create this configuration
     */
    FcStrSet	*configFiles;	    /* config files loaded */
    /*
     * Substitution instructions for patterns and fonts;
     * maxObjects is used to allocate appropriate intermediate storage
     * while performing a whole set of substitutions
     */
    FcSubst	*substPattern;	    /* substitutions for patterns */
    FcSubst	*substFont;	    /* substitutions for fonts */
    int		maxObjects;	    /* maximum number of tests in all substs */
    /*
     * List of patterns used to control font file selection
     */
    FcStrSet	*acceptGlobs;
    FcStrSet	*rejectGlobs;
    FcFontSet	*acceptPatterns;
    FcFontSet	*rejectPatterns;
    /*
     * The set of fonts loaded from the listed directories; the
     * order within the set does not determine the font selection,
     * except in the case of identical matches in which case earlier fonts
     * match preferrentially
     */
    FcFontSet	*fonts[FcSetApplication + 1];
    /*
     * Fontconfig can periodically rescan the system configuration
     * and font directories.  This rescanning occurs when font
     * listing requests are made, but no more often than rescanInterval
     * seconds apart.
     */
    time_t	rescanTime;	    /* last time information was scanned */
    int		rescanInterval;	    /* interval between scans */
};
 
extern FcConfig	*_fcConfig;

typedef struct _FcCharMap FcCharMap;

/* fcblanks.c */

/* fccache.c */

int
FcCacheNextOffset(int fd);

void
FcCacheForce(FcBool force);

void
FcCacheClearStatic(void);

FcBool
FcCachePrepareSerialize(FcConfig * config);

FcBool
FcCacheSerialize (FcConfig * config);

FcBool
FcCacheRead (FcConfig *config);

FcBool
FcCacheWrite (FcConfig * config);
 
/* fccfg.c */

FcBool
FcConfigAddConfigDir (FcConfig	    *config,
		      const FcChar8 *d);

FcBool
FcConfigAddFontDir (FcConfig	    *config,
		    const FcChar8   *d);

FcBool
FcConfigAddDir (FcConfig	*config,
		const FcChar8	*d);

FcBool
FcConfigAddConfigFile (FcConfig		*config,
		       const FcChar8	*f);

FcBool
FcConfigSetCache (FcConfig	*config,
		  const FcChar8	*c);

FcBool
FcConfigAddBlank (FcConfig	*config,
		  FcChar32    	blank);

FcBool
FcConfigAddEdit (FcConfig	*config,
		 FcTest		*test,
		 FcEdit		*edit,
		 FcMatchKind	kind);

void
FcConfigSetFonts (FcConfig	*config,
		  FcFontSet	*fonts,
		  FcSetName	set);

FcBool
FcConfigCompareValue (const FcValue m,
		      FcOp	    op,
		      const FcValue v);

FcBool
FcConfigGlobAdd (FcConfig	*config,
		 const FcChar8	*glob,
		 FcBool		accept);

FcBool
FcConfigAcceptFilename (FcConfig	*config,
			const FcChar8	*filename);

FcBool
FcConfigPatternsAdd (FcConfig	*config,
		     FcPattern	*pattern,
		     FcBool	accept);

FcBool
FcConfigAcceptFont (FcConfig	    *config,
		    const FcPattern *font);

/* fccharset.c */
FcCharSet *
FcCharSetFreeze (FcCharSet *cs);

FcCharSetPtr
FcCharSetCopyPtr (FcCharSetPtr src);

void
FcCharSetThawAll (void);

FcBool
FcNameUnparseCharSet (FcStrBuf *buf, const FcCharSet *c);

FcCharSet *
FcNameParseCharSet (FcChar8 *string);

FcCharLeaf *
FcCharSetFindLeafCreate (FcCharSet *fcs, FcChar32 ucs4);

void
FcCharSetPtrDestroy (FcCharSetPtr fcs);

void
FcCharSetClearStatic(void);

FcBool
FcCharSetPrepareSerialize(FcCharSet *c);

FcCharSetPtr
FcCharSetSerialize(FcCharSet *c);

FcCharSetPtr
FcCharSetPtrCreateDynamic(FcCharSet *c);

FcCharLeaf *
FcCharSetGetLeaf(const FcCharSet *c, int i);

FcChar16 *
FcCharSetGetNumbers(const FcCharSet *c);

FcBool
FcCharSetRead (int fd, FcCache metadata);

FcBool
FcCharSetWrite (int fd, FcCache *metadata);

/* fcdbg.c */
void
FcValueListPrint (const FcValueListPtr l);

void
FcLangSetPrint (const FcLangSet *ls);

void
FcOpPrint (FcOp op);

void
FcTestPrint (const FcTest *test);

void
FcExprPrint (const FcExpr *expr);

void
FcEditPrint (const FcEdit *edit);

void
FcSubstPrint (const FcSubst *subst);

int
FcDebug (void);

FcCharSet *
FcCharSetPtrU (FcCharSetPtr mi);

/* fcdir.c */

FcBool
FcFileIsDir (const FcChar8 *file);

FcBool
FcFileScanConfig (FcFontSet	*set,
		  FcStrSet	*dirs,
		  FcFileCache	*cache,
		  FcBlanks	*blanks,
		  const FcChar8 *file,
		  FcBool	force,
		  FcConfig	*config);

FcBool
FcDirScanConfig (FcFontSet	*set,
		 FcStrSet	*dirs,
		 FcFileCache	*cache,
		 FcBlanks	*blanks,
		 const FcChar8  *dir,
		 FcBool		force,
		 FcConfig	*config);

/* fcfont.c */
int
FcFontDebug (void);
    
/* fcfreetype.c */
FcBool
FcFreeTypeIsExclusiveLang (const FcChar8  *lang);

FcBool
FcFreeTypeHasLang (FcPattern *pattern, const FcChar8 *lang);

FcChar32
FcFreeTypeUcs4ToPrivate (FcChar32 ucs4, const FcCharMap *map);

FcChar32
FcFreeTypePrivateToUcs4 (FcChar32 private, const FcCharMap *map);

const FcCharMap *
FcFreeTypeGetPrivateMap (FT_Encoding encoding);
    
/* fcfs.c */

void
FcFontSetClearStatic (void);

FcBool
FcFontSetPrepareSerialize (FcFontSet * s);

FcBool
FcFontSetSerialize (FcFontSet * s);

FcBool
FcFontSetRead(int fd, FcConfig * config, FcCache metadata);

FcBool
FcFontSetWrite(int fd, FcConfig * config, FcCache * metadata);

/* fcgram.y */
int
FcConfigparse (void);

int
FcConfigwrap (void);
    
void
FcConfigerror (char *fmt, ...);
    
char *
FcConfigSaveField (const char *field);

void
FcTestDestroy (FcTest *test);

FcExpr *
FcExprCreateInteger (int i);

FcExpr *
FcExprCreateDouble (double d);

FcExpr *
FcExprCreateString (const FcChar8 *s);

FcExpr *
FcExprCreateMatrix (const FcMatrix *m);

FcExpr *
FcExprCreateBool (FcBool b);

FcExpr *
FcExprCreateNil (void);

FcExpr *
FcExprCreateField (const char *field);

FcExpr *
FcExprCreateConst (const FcChar8 *constant);

FcExpr *
FcExprCreateOp (FcExpr *left, FcOp op, FcExpr *right);

void
FcExprDestroy (FcExpr *e);

void
FcEditDestroy (FcEdit *e);

/* fcinit.c */

void
FcMemReport (void);

void
FcMemAlloc (int kind, int size);

void
FcMemFree (int kind, int size);

/* fclang.c */
FcLangSet *
FcFreeTypeLangSet (const FcCharSet  *charset, 
		   const FcChar8    *exclusiveLang);

FcLangResult
FcLangCompare (const FcChar8 *s1, const FcChar8 *s2);
    
const FcCharSet *
FcCharSetForLang (const FcChar8 *lang);

FcLangSet *
FcLangSetPromote (const FcChar8 *lang);

FcLangSet *
FcNameParseLangSet (const FcChar8 *string);

FcBool
FcNameUnparseLangSet (FcStrBuf *buf, const FcLangSet *ls);

void
FcLangSetClearStatic (void);

FcBool
FcLangSetPrepareSerialize (FcLangSet *l);

FcLangSetPtr
FcLangSetSerialize (FcLangSet *l);

FcLangSet *
FcLangSetPtrU (FcLangSetPtr li);

FcLangSetPtr
FcLangSetPtrCreateDynamic (FcLangSet *l);

void
FcLangSetPtrDestroy (FcLangSetPtr li);

FcBool
FcLangSetRead (int fd, FcCache metadata);

FcBool
FcLangSetWrite (int fd, FcCache *metadata);

/* fclist.c */

FcBool
FcListPatternMatchAny (const FcPattern *p,
		       const FcPattern *font);

/* fcmatch.c */

/* fcname.c */

FcBool
FcNameBool (const FcChar8 *v, FcBool *result);

/* fcpat.c */
void
FcValueListDestroy (FcValueListPtr l);

FcPatternElt *
FcPatternFindElt (const FcPattern *p, const char *object);

FcPatternElt *
FcPatternInsertElt (FcPattern *p, const char *object);

FcBool
FcPatternAddWithBinding  (FcPattern	    *p,
			  const char	    *object,
			  FcValue	    value,
			  FcValueBinding    binding,
			  FcBool	    append);

FcPattern *
FcPatternFreeze (FcPattern *p);

void
FcPatternFini (void);

FcBool
FcPatternAppend (FcPattern *p, FcPattern *s);

void
FcObjectClearStatic(void);

FcObjectPtr
FcObjectStaticName (const char *name);

FcBool
FcObjectRead (int fd, FcCache metadata);

FcBool
FcObjectWrite (int fd, FcCache * metadata);

const char *
FcObjectPtrU (FcObjectPtr p);

int
FcObjectPtrCompare (FcObjectPtr a, FcObjectPtr b);

void
FcObjectPtrDestroy (FcObjectPtr p);

FcBool
FcPatternPrepareSerialize (FcPattern *p);

void
FcValueListClearStatic (void);

void
FcPatternClearStatic (void);

FcValueList * 
FcValueListPtrU(FcValueListPtr p);

FcPatternElt *
FcPatternEltU (FcPatternEltPtr pei);

FcValueListPtr
FcValueListPtrCreateDynamic(FcValueList * p);

FcBool
FcValueListPrepareSerialize (FcValueList *p);

FcValueListPtr
FcValueListSerialize(FcValueList *pi);

FcPattern *
FcPatternSerialize (FcPattern * p);

FcBool
FcPatternRead (int fd, FcCache metadata);

FcBool
FcPatternWrite (int fd, FcCache *metadata);

FcBool
FcPatternEltRead (int fd, FcCache metadata);

FcBool
FcPatternEltWrite (int fd, FcCache *metadata);

FcBool
FcValueListRead (int fd, FcCache metadata);

FcBool
FcValueListWrite (int fd, FcCache *metadata);

/* fcrender.c */

/* fcmatrix.c */

extern const FcMatrixPtr    FcIdentityMatrix;

void
FcMatrixFree (FcMatrix *mat);

void
FcMatrixPtrDestroy (FcMatrixPtr mi);

FcBool
FcMatrixPrepareSerialize(FcMatrix *m);

FcMatrixPtr
FcMatrixSerialize(FcMatrix *m);

FcMatrix *
FcMatrixPtrU (FcMatrixPtr mi);

FcMatrixPtr
FcMatrixPtrCreateDynamic (FcMatrix *m);

void 
FcMatrixClearStatic (void);

FcBool
FcMatrixWrite (int fd, FcCache *metadata);

FcBool
FcMatrixRead (int fd, FcCache metadata);

/* fcstr.c */
FcStrSet *
FcStrSetPtrU (const FcStrSetPtr set);

FcStrSetPtr
FcStrSetPtrCreateDynamic (const FcStrSet * set);

void
FcStrSetClearStatic (void);

FcBool
FcStrSetPrepareSerialize (const FcStrSet *set);

void
FcStrSetSort (FcStrSet * set);

FcChar8 *
FcStrSetGet (const FcStrSet *set, int i);

FcChar8 *
FcStrPlus (const FcChar8 *s1, const FcChar8 *s2);
    
void
FcStrFree (FcChar8 *s);

void
FcStrBufInit (FcStrBuf *buf, FcChar8 *init, int size);

void
FcStrBufDestroy (FcStrBuf *buf);

FcChar8 *
FcStrBufDone (FcStrBuf *buf);

FcBool
FcStrBufChar (FcStrBuf *buf, FcChar8 c);

FcBool
FcStrBufString (FcStrBuf *buf, const FcChar8 *s);

FcBool
FcStrBufData (FcStrBuf *buf, const FcChar8 *s, int len);

FcStrSetPtr
FcStrSetSerialize (FcStrSet *set);

FcBool
FcStrSetRead (int fd, FcCache metadata);

FcBool
FcStrSetWrite (int fd, FcCache *metadata);

int
FcStrCmpIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2);

const FcChar8 *
FcStrContainsIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2);

const FcChar8 *
FcStrContainsIgnoreCase (const FcChar8 *s1, const FcChar8 *s2);

FcBool
FcStrUsesHome (const FcChar8 *s);

FcChar8 *
FcStrLastSlash (const FcChar8  *path);

FcChar32
FcStrHashIgnoreCase (const FcChar8 *s);

#endif /* _FC_INT_H_ */