xenocara/app/xkbcomp/xkbpath.c
2006-11-25 20:07:29 +00:00

333 lines
7.7 KiB
C

/* $Xorg: xkbpath.c,v 1.3 2000/08/17 19:54:34 cpqbld Exp $ */
/************************************************************
Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, 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 Silicon Graphics not be
used in advertising or publicity pertaining to distribution
of the software without specific prior written permission.
Silicon Graphics makes no representation about the suitability
of this software for any purpose. It is provided "as is"
without any express or implied warranty.
SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
GRAPHICS 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.
********************************************************/
/* $XFree86: xc/programs/xkbcomp/xkbpath.c,v 3.7 2002/06/05 00:00:38 dawes Exp $ */
#include <X11/Xlib.h>
#include <X11/XKBlib.h>
#define DEBUG_VAR_NOT_LOCAL
#define DEBUG_VAR debugFlags
#include "utils.h"
#include <stdlib.h>
#include <X11/extensions/XKM.h>
#include "xkbpath.h"
#ifndef DFLT_XKB_CONFIG_ROOT
#define DFLT_XKB_CONFIG_ROOT "/usr/lib/X11/xkb"
#endif
#ifndef PATH_MAX
#define PATH_MAX 1024
#endif
#define PATH_CHUNK 8
static Bool noDefaultPath = False;
static int longestPath;
static int szPath;
static int nPathEntries;
static char ** includePath;
Bool
XkbParseIncludeMap(char **str_inout,char **file_rtrn,char **map_rtrn,
char *nextop_rtrn, char **extra_data)
{
char *tmp,*str,*next;
str= *str_inout;
if ((*str=='+')||(*str=='|')) {
*file_rtrn= *map_rtrn= NULL;
*nextop_rtrn= *str;
next= str+1;
}
else if (*str=='%') {
*file_rtrn= *map_rtrn= NULL;
*nextop_rtrn= str[1];
next= str+2;
}
else {
next= strpbrk(str,"|+");
if (next) {
*nextop_rtrn= *next;
*next++= '\0';
}
else {
*nextop_rtrn= '\0';
next= NULL;
}
tmp= strchr(str,':');
if (tmp != NULL) {
*tmp++ = '\0';
*extra_data = uStringDup(tmp);
}
else {
*extra_data = NULL;
}
tmp= strchr(str,'(');
if (tmp==NULL) {
*file_rtrn= uStringDup(str);
*map_rtrn= NULL;
}
else if (str[0]=='(') {
uFree(*extra_data);
return False;
}
else {
*tmp++= '\0';
*file_rtrn= uStringDup(str);
str= tmp;
tmp= strchr(str,')');
if ((tmp==NULL)||(tmp[1]!='\0')) {
uFree(*file_rtrn);
uFree(*extra_data);
return False;
}
*tmp++= '\0';
*map_rtrn= uStringDup(str);
}
}
if (*nextop_rtrn=='\0')
*str_inout= NULL;
else if ((*nextop_rtrn=='|')||(*nextop_rtrn=='+'))
*str_inout= next;
else return False;
return True;
}
Bool
XkbInitIncludePath(void)
{
szPath= PATH_CHUNK;
includePath= (char **)calloc(szPath,sizeof(char *));
if (includePath==NULL)
return False;
return True;
}
void
XkbAddDefaultDirectoriesToPath(void)
{
if (noDefaultPath)
return;
XkbAddDirectoryToPath(".");
XkbAddDirectoryToPath(DFLT_XKB_CONFIG_ROOT);
}
void
XkbClearIncludePath(void)
{
register int i;
if (szPath>0) {
for (i=0;i<nPathEntries;i++) {
if (includePath[i]!=NULL) {
uFree(includePath[i]);
includePath[i]= NULL;
}
}
nPathEntries= 0;
longestPath= 0;
}
noDefaultPath = True;
return;
}
Bool
XkbAddDirectoryToPath(char *dir)
{
int len;
if ((dir==NULL)||(dir[0]=='\0')) {
XkbClearIncludePath();
return True;
}
#ifdef __UNIXOS2__
dir = (char*)__XOS2RedirRoot(dir);
#endif
len= strlen(dir);
if (len+2>=PATH_MAX) { /* allow for '/' and at least one character */
ERROR2("Path entry (%s) too long (maxiumum length is %d)\n",
dir,PATH_MAX-3);
return False;
}
if (len>longestPath)
longestPath= len;
if (nPathEntries>=szPath) {
szPath+= PATH_CHUNK;
includePath= (char **)realloc(includePath,szPath*sizeof(char *));
if (includePath==NULL) {
WSGO("Allocation failed (includePath)\n");
return False;
}
}
includePath[nPathEntries]= (char *)calloc(strlen(dir)+1,sizeof(char));
if (includePath[nPathEntries]==NULL) {
WSGO1("Allocation failed (includePath[%d])\n",nPathEntries);
return False;
}
strcpy(includePath[nPathEntries++],dir);
return True;
}
/***====================================================================***/
char *
XkbDirectoryForInclude(unsigned type)
{
static char buf[32];
switch (type) {
case XkmSemanticsFile:
strcpy(buf,"semantics");
break;
case XkmLayoutFile:
strcpy(buf,"layout");
break;
case XkmKeymapFile:
strcpy(buf,"keymap");
break;
case XkmKeyNamesIndex:
strcpy(buf,"keycodes");
break;
case XkmTypesIndex:
strcpy(buf,"types");
break;
case XkmSymbolsIndex:
strcpy(buf,"symbols");
break;
case XkmCompatMapIndex:
strcpy(buf,"compat");
break;
case XkmGeometryFile:
case XkmGeometryIndex:
strcpy(buf,"geometry");
break;
default:
strcpy(buf,"");
break;
}
return buf;
}
/***====================================================================***/
typedef struct _FileCacheEntry {
char * name;
unsigned type;
char * path;
void * data;
struct _FileCacheEntry * next;
} FileCacheEntry;
static FileCacheEntry *fileCache;
void *
XkbAddFileToCache(char *name,unsigned type,char *path,void *data)
{
FileCacheEntry *entry;
for (entry=fileCache;entry!=NULL;entry=entry->next) {
if ((type==entry->type)&&(uStringEqual(name,entry->name))) {
void *old= entry->data;
WSGO2("Replacing file cache entry (%s/%d)\n",name,type);
entry->path= path;
entry->data= data;
return old;
}
}
entry= uTypedAlloc(FileCacheEntry);
if (entry!=NULL) {
entry->name= name;
entry->type= type;
entry->path= path;
entry->data= data;
entry->next= fileCache;
fileCache= entry;
}
return NULL;
}
void *
XkbFindFileInCache(char *name,unsigned type,char **pathRtrn)
{
FileCacheEntry *entry;
for (entry=fileCache;entry!=NULL;entry=entry->next) {
if ((type==entry->type)&&(uStringEqual(name,entry->name))) {
*pathRtrn= entry->path;
return entry->data;
}
}
return NULL;
}
/***====================================================================***/
FILE *
XkbFindFileInPath(char *name,unsigned type,char **pathRtrn)
{
register int i;
FILE *file= NULL;
int nameLen,typeLen,pathLen;
char buf[PATH_MAX],*typeDir;
typeDir= XkbDirectoryForInclude(type);
nameLen= strlen(name);
typeLen= strlen(typeDir);
for (i=0;i<nPathEntries;i++) {
pathLen= strlen(includePath[i]);
if ((nameLen+pathLen+1)>=PATH_MAX) {
ERROR2("File name (%s/%s) too long\n",includePath[i],name);
ACTION("Ignored\n");
continue;
}
sprintf(buf,"%s/%s",includePath[i],name);
file= fopen(buf,"r");
if (file!=NULL)
break;
else if (typeLen<1)
continue;
if ((nameLen+typeLen+pathLen+2)>=PATH_MAX) {
ERROR3("File name (%s/%s/%s) too long\n",includePath[i],typeDir,
name);
ACTION("Ignored\n");
continue;
}
sprintf(buf,"%s/%s/%s",includePath[i],typeDir,name);
file= fopen(buf,"r");
if (file!=NULL)
break;
}
if ((file!=NULL)&&(pathRtrn!=NULL)) {
*pathRtrn= (char *)calloc(strlen(buf)+1,sizeof(char));
if (*pathRtrn!=NULL)
strcpy(*pathRtrn,buf);
}
return file;
}