/* $XConsortium: XStrKeysym.c,v 11.15 91/06/07 18:20:55 rws Exp $ */ /* Copyright 1985, 1987, 1990 Massachusetts Institute of Technology */ /* 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 M.I.T. not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. M.I.T. makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. */ #include "Xlibint.h" #include <X11/Xresource.h> #include <X11/keysymdef.h> #ifdef X_NOT_STDC_ENV extern char *getenv(); #endif extern XrmQuark _XrmInternalStringToQuark(); #if __STDC__ #define Const const #else #define Const /**/ #endif typedef unsigned long Signature; #define NEEDKTABLE #include "ks_tables.h" #ifndef KEYSYMDB #define KEYSYMDB "/usr/lib/X11/XKeysymDB" #endif static Bool initialized; static XrmDatabase keysymdb; static XrmQuark Qkeysym[2]; XrmDatabase _XInitKeysymDB() { if (!initialized) { char *dbname; XrmInitialize(); /* use and name of this env var is not part of the standard */ /* implementation-dependent feature */ dbname = getenv("XKEYSYMDB"); if (!dbname) dbname = KEYSYMDB; keysymdb = XrmGetFileDatabase(dbname); if (keysymdb) Qkeysym[0] = XrmStringToQuark("Keysym"); initialized = True; } return keysymdb; } #if NeedFunctionPrototypes KeySym XStringToKeysym(s) _Xconst char *s; #else KeySym XStringToKeysym(s) char *s; #endif { register int i, n; int h; register Signature sig = 0; register Const char *p = s; register int c; register int idx; Const unsigned char *entry; unsigned char sig1, sig2; KeySym val; while (c = *p++) sig = (sig << 1) + c; i = sig % KTABLESIZE; h = i + 1; sig1 = (sig >> 8) & 0xff; sig2 = sig & 0xff; n = KMAXHASH; while (idx = hashString[i]) { entry = &_XkeyTable[idx]; if ((entry[0] == sig1) && (entry[1] == sig2) && !strcmp(s, (char *)entry + 4)) { val = (entry[2] << 8) | entry[3]; if (!val) val = XK_VoidSymbol; return val; } if (!--n) break; i += h; if (i >= KTABLESIZE) i -= KTABLESIZE; } if (!initialized) (void)_XInitKeysymDB(); if (keysymdb) { XrmValue result; XrmRepresentation from_type; char c; KeySym val; XrmQuark names[2]; names[0] = _XrmInternalStringToQuark(s, p - s - 1, sig, False); names[1] = NULLQUARK; (void)XrmQGetResource(keysymdb, names, Qkeysym, &from_type, &result); if (result.addr && (result.size > 1)) { val = 0; for (i = 0; i < result.size - 1; i++) { c = ((char *)result.addr)[i]; if ('0' <= c && c <= '9') val = (val<<4)+c-'0'; else if ('a' <= c && c <= 'z') val = (val<<4)+c-'a'+10; else if ('A' <= c && c <= 'Z') val = (val<<4)+c-'A'+10; else return NoSymbol; } return val; } } return (NoSymbol); }