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Language/OS - Multiplatform Resource Library
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LANGUAGE OS.iso
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lisp
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eulisp
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mpfeel.lha
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MPFeel
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chars.c
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C/C++ Source or Header
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1992-10-06
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19KB
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664 lines
/* ******************************************************************** */
/* chars.c Copyright (C) Codemist and University of Bath 1989 */
/* */
/* Basic character, string and symbol functions */
/* ******************************************************************** */
/*
* $Id: chars.c,v 1.6 1992/01/29 13:38:48 pab Exp $
*
* $Log: chars.c,v $
* Revision 1.6 1992/01/29 13:38:48 pab
* sysV fixes
*
* Revision 1.5 1992/01/09 22:28:45 pab
* Fixed for low tag ints
*
* Revision 1.4 1991/12/22 15:13:55 pab
* Xmas revision
*
* Revision 1.3 1991/11/15 13:44:28 pab
* copyalloc rev 0.01
*
* Revision 1.2 1991/09/11 12:07:04 pab
* 11/9/91 First Alpha release of modified system
*
* Revision 1.1 1991/08/12 16:49:30 pab
* Initial revision
*
* Revision 1.4 1991/02/13 18:18:07 kjp
* Symbol and string allocation corrections + RCS log header.
*
*/
/*
* Change Log:
* Version 1, May 1989
* Checked for GC protection - JPff
*/
#include <string.h>
#include <ctype.h>
#include "funcalls.h"
#include "defs.h"
#include "structs.h"
#include "error.h"
#include "global.h"
#include "modboot.h"
#include "symboot.h"
#include "calls.h"
/* These functions are taken from the CHARACTERS AND STRINGS section */
EUFUN_1( Fn_characterp, form)
{
return (is_char(form) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_int2char, form)
{
while (typeof(form)!=TYPE_INT)
form = CallError(stacktop,
"Not an integer in integer-to-character",form,CONTINUABLE);
return allocate_char(stackbase, intval(form));
}
EUFUN_CLOSE
EUFUN_1( Fn_char2int, form)
{
while (!is_char(form))
form = CallError(stacktop,
"Not a character in character-to-integer",form,CONTINUABLE);
return allocate_integer(stackbase, (int)(form->CHAR).code);
}
EUFUN_CLOSE
/* ******************************** */
/* Latin-character-operators module */
/* ******************************** */
EUFUN_1( Fn_charalphap, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-alphabetic-p",form,CONTINUABLE);
return (isalpha((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charnump, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-numeric-p",form,CONTINUABLE);
return (isdigit((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charwhitep, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-whitespace-p",form,CONTINUABLE);
return (isspace((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charpuncp, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-punctuation-p",form,CONTINUABLE);
return (ispunct((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charotherp, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-other-p",form,CONTINUABLE);
return (isgraph((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charupperp, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-upper-case-p",form,CONTINUABLE);
return (isupper((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charlowerp, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not a character in char-lower-case-p",form,CONTINUABLE);
return (islower((form->CHAR).code) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_charupper, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not an character in char-upcase",form,CONTINUABLE);
return allocate_char(stackbase, toupper(intval(form)));
}
EUFUN_CLOSE
EUFUN_1( Fn_charlower, form)
{
while (!is_char(form))
form = CallError(stacktop,"Not an character in char-downcase",form,CONTINUABLE);
return allocate_char(stackbase, tolower(intval(form)));
}
EUFUN_CLOSE
/* ************************************ */
/* Universal-character-operators module */
/* ************************************ */
EUFUN_2( Fn_chareq, form1, form2)
{
while (!is_char(form1))
form1 = CallError(stacktop,"Not a character in char-equal",form1,CONTINUABLE);
while (!is_char(form2))
form2 = CallError(stacktop,"Not a character in char-equal",form2,CONTINUABLE);
return ((form1->CHAR).code == (form2->CHAR).code ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_charls, form1, form2)
{
while (!is_char(form1))
form1 = CallError(stacktop,"Not a character in char<",form1,CONTINUABLE);
while (!is_char(form2))
form2 = CallError(stacktop,"Not a character in char<",form2,CONTINUABLE);
return ((form1->CHAR).code < (form2->CHAR).code ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_chargt, form1, form2)
{
while (!is_char(form1))
form1 = CallError(stacktop,"Not a character in char>",form1,CONTINUABLE);
while (!is_char(form2))
form2 = CallError(stacktop,"Not a character in char>",form2,CONTINUABLE);
return ((form1->CHAR).code > (form2->CHAR).code ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_charle, form1, form2)
{
while (!is_char(form1))
form1 = CallError(stacktop,"Not a character in char<=",form1,CONTINUABLE);
while (!is_char(form2))
form2 = CallError(stacktop,"Not a character in char<=",form2,CONTINUABLE);
return ((form1->CHAR).code <= (form2->CHAR).code ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_charge, form1, form2)
{
while (!is_char(form1))
form1 = CallError(stacktop,"Not a character in char>=",form1,CONTINUABLE);
while (!is_char(form2))
form2 = CallError(stacktop,"Not a character in char>=",form2,CONTINUABLE);
return ((form1->CHAR).code >= (form2->CHAR).code ? lisptrue : nil);
}
EUFUN_CLOSE
/* STRINGS */
EUFUN_1( Fn_stringp, form)
{
return (is_string(form) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_string_copy, form)
{
LispObject ans;
while (!is_string(form))
form = CallError(stacktop,"Not a string in string-copy",form,CONTINUABLE);
ans = allocate_string(stackbase,
stringof(form),strlen(stringof(form)));
return ans;
}
EUFUN_CLOSE
EUFUN_1( Fn_string_length, form)
{
while (!is_string(form))
form = CallError(stacktop,"Not a string in string-length",form,CONTINUABLE);
return allocate_integer(stackbase, strlen(stringof(form)));
}
EUFUN_CLOSE
EUFUN_2( Fn_sref, form, off)
{
while (!is_string(form))
form = CallError(stacktop,"Not a string in string-ref",form,CONTINUABLE);
while (typeof(off)!=TYPE_INT)
off = CallError(stacktop,"Not an integer in string-ref",form,CONTINUABLE);
return allocate_char(stackbase, (stringof(form))[intval(off)]);
}
EUFUN_CLOSE
EUFUN_3( Fn_sref_setter, form, off, ch)
{
while (!is_string(form))
form = CallError(stacktop,"Not a string in string-ref",form,CONTINUABLE);
while (typeof(off)!=TYPE_INT)
off = CallError(stacktop,"Not an integer in string-ref",form,CONTINUABLE);
while (!is_char(ch))
off = CallError(stacktop,"Not an character in string-ref",form,CONTINUABLE);
stringof(form)[intval(off)] = (ch->CHAR).code;
return nil;
}
EUFUN_CLOSE
EUFUN_3( Fn_substring, str, start, end)
{
int len;
int istart;
int iend;
while (!is_string(str))
str = CallError(stacktop,"Not a string in substring",str,CONTINUABLE);
while (typeof(start)!=TYPE_INT)
start = CallError(stacktop,"Not an integer in substring",start,CONTINUABLE);
while (typeof(end)!=TYPE_INT)
end = CallError(stacktop,"Not an integer in substring",end,CONTINUABLE);
len = strlen(stringof(str));
istart = intval(start);
iend = intval(end);
if (istart<0 || istart>=len || iend<0 || iend>=len || iend<istart) {
printf("Illegal arguments to substring\n");
return nil;
}
{
char buff[256];
for (len = 0 ; istart<=iend; istart++, len++)
buff[len] = (stringof(str))[istart];
buff[len] = '\0';
return allocate_string(stackbase, buff,len);
}
}
EUFUN_CLOSE
EUFUN_2( Fn_string_append, str1, str2)
{
int len;
char buff[256];
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string-append",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string-append",str2,CONTINUABLE);
len = strlen(stringof(str1));
strcpy(buff,stringof(str1));
strcpy(buff+len,stringof(str2));
return allocate_string(stackbase, buff,len+strlen(stringof(str2)));
}
EUFUN_CLOSE
/* ** String-operators module ** */
EUFUN_1( Fn_string_list, form)
{
LispObject ans=nil;
while (!is_string(form))
form = CallError(stacktop,"Not a string in string-to-list",form,CONTINUABLE);
{
char *str = stringof(form);
int n;
for (n= strlen(str)-1; n>=0; n--) {
LispObject x;
STACK_TMP(ans);
x = allocate_char(stacktop, str[n]);
UNSTACK_TMP(ans);
ARG_0(stacktop) = x;
ARG_1(stacktop) = ans;
ans = Fn_cons(stacktop);
}
}
return ans;
}
EUFUN_CLOSE
EUFUN_2( Fn_string_equal, str1, str2)
{
char *ss1;
char *ss2;
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string-equal",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string-equal",str2,CONTINUABLE);
ss1 = stringof(str1);
ss2 = stringof(str2);
return (strcmp(ss1,ss2)==0 ? lisptrue: nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_string_lt, str1, str2)
{
char *ss1;
char *ss2;
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string-lt",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string-lt",str2,CONTINUABLE);
ss1 = stringof(str1);
ss2 = stringof(str2);
return (strcmp(ss1,ss2)<0 ? lisptrue: nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_string_gt, str1, str2)
{
char *ss1;
char *ss2;
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string-gt",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string-gt",str2,CONTINUABLE);
ss1 = stringof(str1);
ss2 = stringof(str2);
return (strcmp(ss1,ss2)>0 ? lisptrue: nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_string_le, str1, str2)
{
char *ss1;
char *ss2;
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string-<=",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string-<=",str2,CONTINUABLE);
ss1 = stringof(str1);
ss2 = stringof(str2);
return (strcmp(ss1,ss2)<=0 ? lisptrue: nil);
}
EUFUN_CLOSE
EUFUN_2( Fn_string_ge, str1, str2)
{
char *ss1;
char *ss2;
while (!is_string(str1))
str1 = CallError(stacktop,"Not a string in string->=",str1,CONTINUABLE);
while (!is_string(str2))
str2 = CallError(stacktop,"Not a string in string->=",str2,CONTINUABLE);
ss1 = stringof(str1);
ss2 = stringof(str2);
return (strcmp(ss1,ss2)>=0 ? lisptrue: nil);
}
EUFUN_CLOSE
/* SYMBOLS */
EUFUN_1( Fn_symbolp, form)
{
return (is_symbol(form) ? lisptrue : nil);
}
EUFUN_CLOSE
EUFUN_1( Fn_make_symbol, str)
{
while (!is_string(str))
str = CallError(stacktop,"Not a string in make-symbol",str,CONTINUABLE);
return (LispObject) get_symbol_by_copying(stackbase, stringof(str));
}
EUFUN_CLOSE
EUFUN_1( Fn_symbolname, form)
{
while (!is_symbol(form))
form = CallError(stacktop,"Not symbol in symbol-name",form,CONTINUABLE);
return allocate_string(stackbase, (form->SYMBOL).pname,strlen((form->SYMBOL).pname));
}
EUFUN_CLOSE
EUFUN_1( Fn_symbolvalue, form)
{
while (!is_symbol(form))
form = CallError(stacktop,"symbol-value: non symbol",form,CONTINUABLE);
if (form->SYMBOL.gvalue == NULL)
CallError(stacktop,"symbol-value: globally unbound",form,NONCONTINUABLE);
return (form->SYMBOL).gvalue;
}
EUFUN_CLOSE
EUFUN_2( Fn_symbolvalue_update, form, new)
{
while (!is_symbol(form))
form = CallError(stacktop,"symbol-value: non-symbol",form,CONTINUABLE);
(form->SYMBOL).gvalue = new;
return nil;
}
EUFUN_CLOSE
EUFUN_1( Fn_symbolglobal, form)
{
while (!is_symbol(form))
form = CallError(stacktop,"Not symbol in symbol-global",form,CONTINUABLE);
return (form->SYMBOL).gvalue;
}
EUFUN_CLOSE
EUFUN_2( Fn_symbolglobal_update, form, new)
{
while (!is_symbol(form))
form = CallError(stacktop,"Not symbol in symbol-global",form,CONTINUABLE);
(form->SYMBOL).gvalue = new;
return nil;
}
EUFUN_CLOSE
EUFUN_1( Fn_explode, sym)
{
LispObject list,last;
char *name;
char temp[5];
if (!is_symbol(sym))
CallError(stacktop,"explode: not a symbol",sym,NONCONTINUABLE);
name = sym->SYMBOL.pname;
last = list = nil;
while (*name != '\0') {
LispObject symbit;
temp[0] = *name; temp[1] = '\0';
symbit = get_symbol_by_copying(stackbase, temp);
if (last == nil) {
ARG_0(stacktop) = symbit;
ARG_1(stacktop) = nil;
list = Fn_cons(stacktop);
last = list;
STACK_TMP(list);
}
else {
LispObject x;
ARG_0(stacktop) = symbit;
ARG_1(stacktop) = last;
x = Fn_cons(stacktop);
last = ARG_1(stacktop);
CDR(last) = x;
last = x;
}
++name;
}
UNSTACK_TMP(list);
return(list);
}
EUFUN_CLOSE
EUFUN_2( Fn_make_string, n, rest)
{
LispObject ch,str;
int i;
char cch;
if (consp(rest)) {
ch = CAR(rest);
if (!is_char(ch))
CallError(stacktop,"make-string: bad character",ch,NONCONTINUABLE);
cch = (char) (ch->CHAR.code);
}
else cch = ' ';
if (!is_fixnum(n))
CallError(stacktop,"make-string: bad length",n,NONCONTINUABLE);
if (intval(n) < 1)
CallError(stacktop,"make-string: bad length",n,NONCONTINUABLE);
str = (LispObject) allocate_string(stackbase, "",intval(n));
for (i=0; i<intval(n); ++i)
stringof(str)[i] = cch;
stringof(str)[i] = '\0';
return(str);
}
EUFUN_CLOSE
static SYSTEM_GLOBAL(int,gensym_counter);
EUFUN_0( Fn_gensym)
{
char buffer[100];
sprintf(buffer,"G%05d\0",SYSTEM_GLOBAL_VALUE(gensym_counter));
++SYSTEM_GLOBAL_VALUE(gensym_counter);
return((LispObject) get_symbol_by_copying(stackbase, buffer));
}
EUFUN_CLOSE
/* *************************************************************** */
/* This is not part of the real Eulisp definition */
/* *************************************************************** */
EUFUN_1( Fn_mapoblist, fn)
{ /* And would not work in any case --- pab */
LispObject ob = (LispObject) (ObList);
while (ob!=NULL) {
EUCALL_2(apply1, fn, ob);
ob = ARG_1(stacktop);
ob = (LispObject) (ob->SYMBOL).left;
}
return nil;
}
EUFUN_CLOSE
/* *************************************************************** */
/* Initialisation of this section */
/* *************************************************************** */
#define STRINGS_ENTRIES 14
MODULE Module_strings;
LispObject Module_strings_values[STRINGS_ENTRIES];
#define CHARACTERS_ENTRIES 17
MODULE Module_characters;
LispObject Module_characters_values[CHARACTERS_ENTRIES];
#define SYMBOLS_ENTRIES 10
MODULE Module_symbols;
LispObject Module_symbols_values[SYMBOLS_ENTRIES];
void initialise_chars(LispObject *stacktop)
{
LispObject fun,upd;
open_module(stacktop,
&Module_characters,
Module_characters_values,
"characters",
CHARACTERS_ENTRIES);
(void) make_module_function(stacktop,"characterp",Fn_characterp,1);
(void) make_module_function(stacktop,"integer-to-character",Fn_int2char,1);
(void) make_module_function(stacktop,"character-to-integer",Fn_char2int,1);
(void) make_module_function(stacktop,"char-alphabetic-p",Fn_charalphap,1);
(void) make_module_function(stacktop,"char-numeric-p",Fn_charnump,1);
(void) make_module_function(stacktop,"char-whitespace-p",Fn_charwhitep,1);
(void) make_module_function(stacktop,"char-punctuation-p",Fn_charpuncp,1);
(void) make_module_function(stacktop,"char-other-p",Fn_charotherp,1);
(void) make_module_function(stacktop,"char-upper-case-p",Fn_charupperp,1);
(void) make_module_function(stacktop,"char-lower-case-p",Fn_charlowerp,1);
(void) make_module_function(stacktop,"char-upcase",Fn_charupper,1);
(void) make_module_function(stacktop,"char-downcase",Fn_charlower,1);
(void) make_module_function(stacktop,"char-equal",Fn_chareq,2);
(void) make_module_function(stacktop,"char<",Fn_charls,2);
(void) make_module_function(stacktop,"char>",Fn_chargt,2);
(void) make_module_function(stacktop,"char<=",Fn_charle,2);
(void) make_module_function(stacktop,"char>=",Fn_charge,2);
close_module();
open_module(stacktop,
&Module_strings,
Module_strings_values,
"strings",
STRINGS_ENTRIES);
(void) make_module_function(stacktop,"make-string",Fn_make_string,-2);
(void) make_module_function(stacktop,"stringp",Fn_stringp,1);
(void) make_module_function(stacktop,"string-length",Fn_string_length,1);
fun = make_module_function(stacktop,"string-ref",Fn_sref,2);
STACK_TMP(fun);
upd = make_module_function(stacktop,"string-ref-updator",Fn_sref_setter,3);
UNSTACK_TMP(fun);
set_anon_associate(stacktop,fun,upd);
(void) make_module_function(stacktop,"string-copy",Fn_string_copy,1);
(void) make_module_function(stacktop,"string-to-list",Fn_string_list,1);
(void) make_module_function(stacktop,"string-equal",Fn_string_equal,2);
(void) make_module_function(stacktop,"string-lt",Fn_string_lt,2);
(void) make_module_function(stacktop,"string-gt",Fn_string_gt,2);
(void) make_module_function(stacktop,"substring",Fn_substring,3);
(void) make_module_function(stacktop,"string-append",Fn_string_append,2);
(void) make_module_function(stacktop,"string-<=",Fn_string_le,2);
(void) make_module_function(stacktop,"string->=",Fn_string_ge,2);
close_module();
open_module(stacktop,
&Module_symbols,
Module_symbols_values,
"symbols",
SYMBOLS_ENTRIES);
(void) make_module_function(stacktop,"symbolp",Fn_symbolp,1);
(void) make_module_function(stacktop,"make-symbol",Fn_make_symbol,1);
(void) make_module_function(stacktop,"symbol-name",Fn_symbolname,1);
fun = make_module_function(stacktop,"symbol-value",Fn_symbolvalue,1);
STACK_TMP(fun);
upd = make_module_function(stacktop,"symbol-value-updator",Fn_symbolvalue_update,2);
UNSTACK_TMP(fun);
set_anon_associate(stacktop,fun,upd);
fun = make_module_function(stacktop,"symbol-global",Fn_symbolglobal,1);
STACK_TMP(fun);
upd = make_module_function(stacktop,"symbol-global-updator",Fn_symbolglobal_update,2);
UNSTACK_TMP(fun);
set_anon_associate(stacktop,fun,upd);
(void) make_module_function(stacktop,"mapoblist",Fn_mapoblist,1);
(void) make_module_function(stacktop,"explode",Fn_explode,1);
SYSTEM_INITIALISE_GLOBAL(int,gensym_counter,0);
(void) make_module_function(stacktop,"gensym",Fn_gensym,0);
close_module();
}