diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/scan.c')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/scan.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/scan.c b/gcc-4.2.1-5666.3/gcc/scan.c deleted file mode 100644 index d5d7beefc..000000000 --- a/gcc-4.2.1-5666.3/gcc/scan.c +++ /dev/null @@ -1,240 +0,0 @@ -/* Utility functions for scan-decls and fix-header programs. - Copyright (C) 1993, 1994, 1998, 2002, 2003 Free Software Foundation, Inc. - -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, 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#include "bconfig.h" -#include "system.h" -#include "coretypes.h" -#include "tm.h" -#include "scan.h" - -int lineno = 1; -int source_lineno = 1; -sstring source_filename; - -void -make_sstring_space (sstring *str, int count) -{ - int cur_pos = str->ptr - str->base; - int cur_size = str->limit - str->base; - int new_size = cur_pos + count + 100; - - if (new_size <= cur_size) - return; - - str->base = xrealloc (str->base, new_size); - str->ptr = str->base + cur_size; - str->limit = str->base + new_size; -} - -void -sstring_append (sstring *dst, sstring *src) -{ - char *d, *s; - int count = SSTRING_LENGTH (src); - - MAKE_SSTRING_SPACE (dst, count + 1); - d = dst->ptr; - s = src->base; - while (--count >= 0) *d++ = *s++; - dst->ptr = d; - *d = 0; -} - -int -scan_ident (FILE *fp, sstring *s, int c) -{ - s->ptr = s->base; - if (ISIDST (c)) - { - for (;;) - { - SSTRING_PUT (s, c); - c = getc (fp); - if (c == EOF || ! ISIDNUM (c)) - break; - } - } - MAKE_SSTRING_SPACE (s, 1); - *s->ptr = 0; - return c; -} - -int -scan_string (FILE *fp, sstring *s, int init) -{ - int c; - - for (;;) - { - c = getc (fp); - if (c == EOF || c == '\n') - break; - if (c == init) - { - c = getc (fp); - break; - } - if (c == '\\') - { - c = getc (fp); - if (c == EOF) - break; - if (c == '\n') - continue; - } - SSTRING_PUT (s, c); - } - MAKE_SSTRING_SPACE (s, 1); - *s->ptr = 0; - return c; -} - -/* Skip horizontal white spaces (spaces, tabs, and C-style comments). */ - -int -skip_spaces (FILE *fp, int c) -{ - for (;;) - { - if (c == ' ' || c == '\t') - c = getc (fp); - else if (c == '/') - { - c = getc (fp); - if (c != '*') - { - ungetc (c, fp); - return '/'; - } - c = getc (fp); - for (;;) - { - if (c == EOF) - return EOF; - else if (c != '*') - { - if (c == '\n') - source_lineno++, lineno++; - c = getc (fp); - } - else if ((c = getc (fp)) == '/') - return getc (fp); - } - } - else - break; - } - return c; -} - -int -read_upto (FILE *fp, sstring *str, int delim) -{ - int ch; - - for (;;) - { - ch = getc (fp); - if (ch == EOF || ch == delim) - break; - SSTRING_PUT (str, ch); - } - MAKE_SSTRING_SPACE (str, 1); - *str->ptr = 0; - return ch; -} - -int -get_token (FILE *fp, sstring *s) -{ - int c; - - s->ptr = s->base; - retry: - c = ' '; - c = skip_spaces (fp, c); - if (c == '\n') - { - source_lineno++; - lineno++; - goto retry; - } - if (c == '#') - { - c = get_token (fp, s); - if (c == INT_TOKEN) - { - source_lineno = atoi (s->base) - 1; /* '\n' will add 1 */ - get_token (fp, &source_filename); - } - for (;;) - { - c = getc (fp); - if (c == EOF) - return EOF; - if (c == '\n') - { - source_lineno++; - lineno++; - goto retry; - } - } - } - if (c == EOF) - return EOF; - if (ISDIGIT (c)) - { - do - { - SSTRING_PUT (s, c); - c = getc (fp); - } while (c != EOF && ISDIGIT (c)); - ungetc (c, fp); - c = INT_TOKEN; - goto done; - } - if (ISIDST (c)) - { - c = scan_ident (fp, s, c); - ungetc (c, fp); - return IDENTIFIER_TOKEN; - } - if (c == '\'' || c == '"') - { - c = scan_string (fp, s, c); - ungetc (c, fp); - return c == '\'' ? CHAR_TOKEN : STRING_TOKEN; - } - SSTRING_PUT (s, c); - done: - MAKE_SSTRING_SPACE (s, 1); - *s->ptr = 0; - return c; -} - -unsigned int -hashstr (const char *str, unsigned int len) -{ - unsigned int n = len; - unsigned int r = 0; - const unsigned char *s = (const unsigned char *) str; - - do - r = r * 67 + (*s++ - 113); - while (--n); - return r + len; -} |