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-rw-r--r--gdb/scm-exp.c423
1 files changed, 0 insertions, 423 deletions
diff --git a/gdb/scm-exp.c b/gdb/scm-exp.c
deleted file mode 100644
index 6399563..0000000
--- a/gdb/scm-exp.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/* Scheme/Guile language support routines for GDB, the GNU debugger.
- Copyright 1995 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "expression.h"
-#include "parser-defs.h"
-#include "language.h"
-#include "value.h"
-#include "c-lang.h"
-#include "scm-lang.h"
-#include "scm-tags.h"
-
-#define USE_EXPRSTRING 0
-
-static void scm_lreadparen PARAMS ((int));
-static int scm_skip_ws PARAMS ((void));
-static void scm_read_token PARAMS ((int, int));
-static LONGEST scm_istring2number PARAMS ((char *, int, int));
-static LONGEST scm_istr2int PARAMS ((char *, int, int));
-static void scm_lreadr PARAMS ((int));
-
-static LONGEST
-scm_istr2int(str, len, radix)
- char *str;
- int len;
- int radix;
-{
- int i = 0;
- LONGEST inum = 0;
- int c;
- int sign = 0;
-
- if (0 >= len) return SCM_BOOL_F; /* zero scm_length */
- switch (str[0])
- { /* leading sign */
- case '-':
- case '+':
- sign = str[0];
- if (++i==len)
- return SCM_BOOL_F; /* bad if lone `+' or `-' */
- }
- do {
- switch (c = str[i++]) {
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- c = c - '0';
- goto accumulate;
- case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
- c = c-'A'+10;
- goto accumulate;
- case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
- c = c-'a'+10;
- accumulate:
- if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */
- inum *= radix;
- inum += c;
- break;
- default:
- return SCM_BOOL_F; /* not a digit */
- }
- } while (i < len);
- if (sign == '-')
- inum = -inum;
- return SCM_MAKINUM (inum);
-}
-
-static LONGEST
-scm_istring2number(str, len, radix)
- char *str;
- int len;
- int radix;
-{
- int i = 0;
- char ex = 0;
- char ex_p = 0, rx_p = 0; /* Only allow 1 exactness and 1 radix prefix */
-#if 0
- SCM res;
-#endif
- if (len==1)
- if (*str=='+' || *str=='-') /* Catches lone `+' and `-' for speed */
- return SCM_BOOL_F;
-
- while ((len-i) >= 2 && str[i]=='#' && ++i)
- switch (str[i++]) {
- case 'b': case 'B': if (rx_p++) return SCM_BOOL_F; radix = 2; break;
- case 'o': case 'O': if (rx_p++) return SCM_BOOL_F; radix = 8; break;
- case 'd': case 'D': if (rx_p++) return SCM_BOOL_F; radix = 10; break;
- case 'x': case 'X': if (rx_p++) return SCM_BOOL_F; radix = 16; break;
- case 'i': case 'I': if (ex_p++) return SCM_BOOL_F; ex = 2; break;
- case 'e': case 'E': if (ex_p++) return SCM_BOOL_F; ex = 1; break;
- default: return SCM_BOOL_F;
- }
-
- switch (ex) {
- case 1:
- return scm_istr2int(&str[i], len-i, radix);
- case 0:
- return scm_istr2int(&str[i], len-i, radix);
-#if 0
- if NFALSEP(res) return res;
-#ifdef FLOATS
- case 2: return scm_istr2flo(&str[i], len-i, radix);
-#endif
-#endif
- }
- return SCM_BOOL_F;
-}
-
-static void
-scm_read_token (c, weird)
- int c;
- int weird;
-{
- while (1)
- {
- c = *lexptr++;
- switch (c)
- {
- case '[':
- case ']':
- case '(':
- case ')':
- case '\"':
- case ';':
- case ' ': case '\t': case '\r': case '\f':
- case '\n':
- if (weird)
- goto default_case;
- case '\0': /* End of line */
- eof_case:
- --lexptr;
- return;
- case '\\':
- if (!weird)
- goto default_case;
- else
- {
- c = *lexptr++;
- if (c == '\0')
- goto eof_case;
- else
- goto default_case;
- }
- case '}':
- if (!weird)
- goto default_case;
-
- c = *lexptr++;
- if (c == '#')
- return;
- else
- {
- --lexptr;
- c = '}';
- goto default_case;
- }
-
- default:
- default_case:
- ;
- }
- }
-}
-
-static int
-scm_skip_ws ()
-{
- register int c;
- while (1)
- switch ((c = *lexptr++))
- {
- case '\0':
- goteof:
- return c;
- case ';':
- lp:
- switch ((c = *lexptr++))
- {
- case '\0':
- goto goteof;
- default:
- goto lp;
- case '\n':
- break;
- }
- case ' ': case '\t': case '\r': case '\f': case '\n':
- break;
- default:
- return c;
- }
-}
-
-static void
-scm_lreadparen (skipping)
- int skipping;
-{
- for (;;)
- {
- int c = scm_skip_ws ();
- if (')' == c || ']' == c)
- return;
- --lexptr;
- if (c == '\0')
- error ("missing close paren");
- scm_lreadr (skipping);
- }
-}
-
-static void
-scm_lreadr (skipping)
- int skipping;
-{
- int c, j;
- struct stoken str;
- LONGEST svalue = 0;
- tryagain:
- c = *lexptr++;
- switch (c)
- {
- case '\0':
- lexptr--;
- return;
- case '[':
- case '(':
- scm_lreadparen (skipping);
- return;
- case ']':
- case ')':
- error ("unexpected #\\%c", c);
- goto tryagain;
- case '\'':
- case '`':
- str.ptr = lexptr - 1;
- scm_lreadr (skipping);
- if (!skipping)
- {
- value_ptr val = scm_evaluate_string (str.ptr, lexptr - str.ptr);
- if (!is_scmvalue_type (VALUE_TYPE (val)))
- error ("quoted scm form yields non-SCM value");
- svalue = extract_signed_integer (VALUE_CONTENTS (val),
- TYPE_LENGTH (VALUE_TYPE (val)));
- goto handle_immediate;
- }
- return;
- case ',':
- c = *lexptr++;
- if ('@' != c)
- lexptr--;
- scm_lreadr (skipping);
- return;
- case '#':
- c = *lexptr++;
- switch (c)
- {
- case '[':
- case '(':
- scm_lreadparen (skipping);
- return;
- case 't': case 'T':
- svalue = SCM_BOOL_T;
- goto handle_immediate;
- case 'f': case 'F':
- svalue = SCM_BOOL_F;
- goto handle_immediate;
- case 'b': case 'B':
- case 'o': case 'O':
- case 'd': case 'D':
- case 'x': case 'X':
- case 'i': case 'I':
- case 'e': case 'E':
- lexptr--;
- c = '#';
- goto num;
- case '*': /* bitvector */
- scm_read_token (c, 0);
- return;
- case '{':
- scm_read_token (c, 1);
- return;
- case '\\': /* character */
- c = *lexptr++;
- scm_read_token (c, 0);
- return;
- case '|':
- j = 1; /* here j is the comment nesting depth */
- lp:
- c = *lexptr++;
- lpc:
- switch (c)
- {
- case '\0':
- error ("unbalanced comment");
- default:
- goto lp;
- case '|':
- if ('#' != (c = *lexptr++))
- goto lpc;
- if (--j)
- goto lp;
- break;
- case '#':
- if ('|' != (c = *lexptr++))
- goto lpc;
- ++j;
- goto lp;
- }
- goto tryagain;
- case '.':
- default:
-#if 0
- callshrp:
-#endif
- scm_lreadr (skipping);
- return;
- }
- case '\"':
- while ('\"' != (c = *lexptr++))
- {
- if (c == '\\')
- switch (c = *lexptr++)
- {
- case '\0':
- error ("non-terminated string literal");
- case '\n':
- continue;
- case '0':
- case 'f':
- case 'n':
- case 'r':
- case 't':
- case 'a':
- case 'v':
- break;
- }
- }
- return;
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- case '.':
- case '-':
- case '+':
- num:
- {
- str.ptr = lexptr-1;
- scm_read_token (c, 0);
- if (!skipping)
- {
- svalue = scm_istring2number (str.ptr, lexptr - str.ptr, 10);
- if (svalue != SCM_BOOL_F)
- goto handle_immediate;
- goto tok;
- }
- }
- return;
- case ':':
- scm_read_token ('-', 0);
- return;
-#if 0
- do_symbol:
-#endif
- default:
- str.ptr = lexptr-1;
- scm_read_token (c, 0);
- tok:
- if (!skipping)
- {
- str.length = lexptr - str.ptr;
- if (str.ptr[0] == '$')
- {
- write_dollar_variable (str);
- return;
- }
- write_exp_elt_opcode (OP_NAME);
- write_exp_string (str);
- write_exp_elt_opcode (OP_NAME);
- }
- return;
- }
- handle_immediate:
- if (!skipping)
- {
- write_exp_elt_opcode (OP_LONG);
- write_exp_elt_type (builtin_type_scm);
- write_exp_elt_longcst (svalue);
- write_exp_elt_opcode (OP_LONG);
- }
-}
-
-int
-scm_parse ()
-{
- char* start;
- while (*lexptr == ' ')
- lexptr++;
- start = lexptr;
- scm_lreadr (USE_EXPRSTRING);
-#if USE_EXPRSTRING
- str.length = lexptr - start;
- str.ptr = start;
- write_exp_elt_opcode (OP_EXPRSTRING);
- write_exp_string (str);
- write_exp_elt_opcode (OP_EXPRSTRING);
-#endif
- return 0;
-}
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