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- /* xlglobals - xlisp global variables */
- /* Copyright (c) 1985, by David Michael Betz
- All Rights Reserved
- Permission is granted for unrestricted non-commercial use */
-
- #include "xlisp.h"
-
- /* symbols */
- LVAL true=NIL,obarray=NIL;
- LVAL s_unbound=NIL,s_dot=NIL;
- LVAL s_quote=NIL,s_function=NIL;
- LVAL s_bquote=NIL,s_comma=NIL,s_comat=NIL;
- LVAL s_evalhook=NIL,s_applyhook=NIL,s_tracelist;
- LVAL s_lambda=NIL,s_macro=NIL;
- LVAL s_stdin=NIL,s_stdout=NIL,s_stderr=NIL,s_debugio=NIL,s_traceout=NIL;
- LVAL s_rtable=NIL;
- LVAL s_tracenable=NIL,s_tlimit=NIL,s_breakenable=NIL;
- LVAL s_setf=NIL,s_car=NIL,s_cdr=NIL,s_nth=NIL,s_aref=NIL,s_get=NIL;
- LVAL s_svalue=NIL,s_sfunction=NIL,s_splist=NIL;
- LVAL s_eql=NIL,s_gcflag=NIL,s_gchook=NIL;
- LVAL s_ifmt=NIL,s_ffmt=NIL;
- LVAL s_1plus=NIL,s_2plus=NIL,s_3plus=NIL;
- LVAL s_1star=NIL,s_2star=NIL,s_3star=NIL;
- LVAL s_minus=NIL,s_printcase=NIL;
-
- /* keywords */
- LVAL k_test=NIL,k_tnot=NIL;
- LVAL k_wspace=NIL,k_const=NIL,k_nmacro=NIL,k_tmacro=NIL;
- LVAL k_sescape=NIL,k_mescape=NIL;
- LVAL k_direction=NIL,k_input=NIL,k_output=NIL;
- LVAL k_start=NIL,k_end=NIL,k_1start=NIL,k_1end=NIL;
- LVAL k_2start=NIL,k_2end=NIL,k_count=NIL,k_key=NIL;
- LVAL k_verbose=NIL,k_print=NIL;
- LVAL k_upcase=NIL,k_downcase=NIL;
-
- /* lambda list keywords */
- LVAL lk_optional=NIL,lk_rest=NIL,lk_key=NIL,lk_aux=NIL;
- LVAL lk_allow_other_keys=NIL;
-
- /* type names */
- LVAL a_subr=NIL,a_fsubr=NIL;
- LVAL a_cons=NIL,a_symbol=NIL,a_fixnum=NIL,a_flonum=NIL;
- LVAL a_string=NIL,a_object=NIL,a_stream=NIL,a_vector=NIL;
- LVAL a_closure=NIL,a_char=NIL,a_ustream=NIL;
-
- /* evaluation variables */
- LVAL **xlstack = NULL,**xlstkbase = NULL,**xlstktop = NULL;
- LVAL xlenv=NIL,xlfenv=NIL,xldenv=NIL;
-
- /* argument stack */
- LVAL *xlargstkbase = NULL; /* argument stack base */
- LVAL *xlargstktop = NULL; /* argument stack top */
- LVAL *xlfp = NULL; /* argument frame pointer */
- LVAL *xlsp = NULL; /* argument stack pointer */
- LVAL *xlargv = NULL; /* current argument vector */
- int xlargc = 0; /* current argument count */
-
- /* exception handling variables */
- CONTEXT *xlcontext = NULL; /* current exception handler */
- CONTEXT *xltarget = NULL; /* target context (for xljump) */
- LVAL xlvalue=NIL; /* exception value (for xljump) */
- int xlmask=0; /* exception type (for xljump) */
-
- /* debugging variables */
- int xldebug = 0; /* debug level */
- int xlsample = 0; /* control character sample rate */
- int xltrcindent = 0; /* trace indent level */
-
- /* gensym variables */
- char gsprefix[STRMAX+1] = { 'G',0 }; /* gensym prefix string */
- int gsnumber = 1; /* gensym number */
-
- /* i/o variables */
- int xlfsize = 0; /* flat size of current print call */
- FILE *tfp = NULL; /* transcript file pointer */
-
- /* general purpose string buffer */
- char buf[STRMAX+1] = { 0 };
-
-