* Copyright (c) 1990 The Regents of the University of California.
* This code is derived from software contributed to Berkeley by
* Vern Paxson of Lawrence Berkeley Laboratory.
* The United States Government has rights in this work pursuant
* to contract no. DE-AC03-76SF00098 between the United States
* Department of Energy and the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
static char sccsid
[] = "@(#)ccl.c 5.2 (Berkeley) 6/18/90";
/* ccl - routines for character classes */
/* ccladd - add a single character to a ccl
/* check to see if the character is already in the ccl */
for ( i
= 0; i
< len
; ++i
)
if ( ccltbl
[ind
+ i
] == ch
)
if ( newpos
>= current_max_ccl_tbl_size
)
current_max_ccl_tbl_size
+= MAX_CCL_TBL_SIZE_INCREMENT
;
ccltbl
= reallocate_character_array( ccltbl
, current_max_ccl_tbl_size
);
/* cclinit - make an empty ccl
if ( ++lastccl
>= current_maxccls
)
current_maxccls
+= MAX_CCLS_INCREMENT
;
cclmap
= reallocate_integer_array( cclmap
, current_maxccls
);
ccllen
= reallocate_integer_array( ccllen
, current_maxccls
);
cclng
= reallocate_integer_array( cclng
, current_maxccls
);
/* we're making the first ccl */
/* the new pointer is just past the end of the last ccl. Since
* the cclmap points to the \first/ character of a ccl, adding the
* length of the ccl to the cclmap pointer will produce a cursor
* to the first free space
cclmap
[lastccl
] = cclmap
[lastccl
- 1] + ccllen
[lastccl
- 1];
cclng
[lastccl
] = 0; /* ccl's start out life un-negated */
/* cclnegate - negate a ccl
/* list_character_set - list the members of a set of characters in CCL form
* list_character_set( cset );
* writes to the given file a character-class representation of those
* characters present in the given set. A character is present if it
* has a non-zero value in the set array.
void list_character_set( file
, cset
)
for ( i
= 0; i
< csize
; ++i
)
register int start_char
= i
;
fputs( readable_form( i
), file
);
while ( ++i
< csize
&& cset
[i
] )
if ( i
- 1 > start_char
)
fprintf( file
, "-%s", readable_form( i
- 1 ) );