WebSVN – tendra.SVN – Diff – /trunk/src/tools/disp/file.c

+/*
+ * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 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. Neither the name of The TenDRA Project 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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 SUCH DAMAGE.
+ *
+ * $Id$
+ */
 /*
     		 Crown Copyright (c) 1997
     This TenDRA(r) Computer Program is subject to Copyright
     owned by the United Kingdom Secretary of State for Defence
     acting through the Defence Evaluation and Research Agency
     (DERA).  It is made available to Recipients with a
     royalty-free licence for its use, reproduction, transfer
     to other parties and amendment for any purpose not excluding
     product development provided that any such use et cetera
     shall be deemed to be acceptance of the following conditions:-
         (1) Its Recipients shall ensure that this Notice is
         reproduced upon any copies or amended versions of it;
         (2) Any amended version of it shall be clearly marked to
         show both the nature of and the organisation responsible
         for the relevant amendment or amendments;
         (3) Its onward transfer from a recipient to another
         party shall be deemed to be that party's acceptance of
         these conditions;
         (4) DERA gives no warranty or assurance as to its
         quality or suitability for any purpose and DERA accepts
         no liability whatsoever in relation to any use to which
         it may be put.
 */
     BUFFSIZE gives the size of the input buffer.  HI_MASK and LO_MASK
     are bit masks used to extract bits 8-15 and 0-7 respectively from
     an integer.
 */
-#define BUFFSIZE	( ( size_t ) 1024 )
+#define BUFFSIZE	((size_t)1024)
-#define HI_MASK		( ( unsigned ) 0xff00 )
+#define HI_MASK		((unsigned)0xff00)
-#define LO_MASK		( ( unsigned ) 0x00ff )
+#define LO_MASK		((unsigned)0x00ff)
 /*
     INPUT AND OUTPUT FILES AND BUFFERS
     The input TDF capsule is read from tdf_file.  The pretty-printed
     output is placed into pp_file.  The input uses the buffer
     inbuffer.
 */
-FILE *pp_file ;
+FILE *pp_file;
-static FILE *tdf_file ;
+static FILE *tdf_file;
-static char inbuffer [ BUFFSIZE ] ;
+static char inbuffer[BUFFSIZE];
-static int ib_ptr, ib_size ;
+static int ib_ptr, ib_size;
 /*
     POSITION IN INPUT FILE
     The current position in the input file is recorded by means of a
     place.
 */
-place here ;
+place here;
 /*
     INPUT AND OUTPUT VARIABLES
     value attained by column is recorded in maximum.  The last character
     output is held in lastc.  The flag read_error is used to indicate
     that an error has occurred in reading the input file.
 */
-int printflag = 1 ;
+int printflag = 1;
-int column ;
+int column;
-int maximum ;
+int maximum;
-int lastc = 0 ;
+int lastc = 0;
-int read_error = 0 ;
+int read_error = 0;
-int dump = 0 ;
+int dump = 0;
 /*
     OPEN FILES
     The file name1 is opened for input and name2 for output.  If name2
     is the null string, the standard output is used.
 */
-void open_files
+void
-    PROTO_N ( ( name1, name2 ) )
-    PROTO_T ( char *name1 X char *name2 )
+open_files(char *name1, char *name2)
+{
-    tdf_file = fopen ( name1, "rb" ) ;
+    tdf_file = fopen(name1, "rb");
-    if ( tdf_file == null ) fatal_error ( "Can't open %s", name1 ) ;
+    if (tdf_file == null)fatal_error("Can't open %s", name1);
-    if ( name2 == null ) dflag = 0 ;
+    if (name2 == null)dflag = 0;
-    if ( dflag ) {
+    if (dflag) {
-	pp_file = fopen ( name2, "w" ) ;
+	pp_file = fopen(name2, "w");
-	if ( pp_file == null ) fatal_error ( "Can't open %s", name2 ) ;
+	if (pp_file == null)fatal_error("Can't open %s", name2);
     } else {
-	pp_file = stdout ;
+	pp_file = stdout;
+    }
-    here.byte = 0 ;
+    here.byte = 0;
-    here.bit = 0 ;
+    here.bit = 0;
-    ib_size = 0 ;
+    ib_size = 0;
-    return ;
+    return;
+}
 /*
     READ THE NEXT BYTE FROM THE INPUT FILE
     This routine reads the next byte from the input file, putting it
     into the worksp field of here.
 */
-static void next_byte
+static void
-    PROTO_Z ()
+next_byte(void)
+{
-    if ( read_error ) {
+    if (read_error) {
-	here.worksp = 0xff ;
+	here.worksp = 0xff;
     } else {
 	/* refill input buffer if required */
-	if ( ib_size == 0 ) {
+	if (ib_size == 0) {
-	    ib_ptr = 0 ;
+	    ib_ptr = 0;
-	    ib_size = ( int ) fread ( inbuffer, 1, BUFFSIZE, tdf_file ) ;
+	    ib_size = (int)fread(inbuffer, 1, BUFFSIZE, tdf_file);
-	    if ( ib_size == 0 ) {
+	    if (ib_size == 0) {
 		/* if we have reached the end of the file... */
-		read_error = 1 ;
+		read_error = 1;
-		if ( !dump ) {
+		if (!dump) {
-		    out ( "<reading error>" ) ;
+		    out("<reading error>");
-		    input_error ( "Reading error" ) ;
+		    input_error("Reading error");
+		}
+	    }
+	}
 	/* get the next character */
-	if ( read_error ) {
+	if (read_error) {
-	    here.worksp = 0xff ;
+	    here.worksp = 0xff;
 	} else {
-	    char c = inbuffer [ ib_ptr++ ] ;
+	    char c = inbuffer[ib_ptr++];
-	    here.worksp = ( unsigned ) ( c & 0xff ) ;
+	    here.worksp = (unsigned)(c & 0xff);
-	    ib_size-- ;
+	    ib_size--;
+	}
+    }
-    return ;
+    return;
+}
 /*
     FETCH THE NEXT n BITS FROM THE INPUT FILE
     This routine reads the next n bits from the input file and returns
     them as an integer.  n will rarely be as much as 8, so there is
     no problem with overflow.
 */
-long fetch
+long
-    PROTO_N ( ( n ) )
-    PROTO_T ( int n )
+fetch(int n)
+{
-    int m ;
+    int m;
-    unsigned a = 0 ;
+    unsigned a = 0;
-    while ( n ) {
+    while (n) {
 	/* read the next byte if necessary */
-	if ( here.bit == 0 ) next_byte () ;
+	if (here.bit == 0)next_byte();
 	/* m = number of bits we need from this byte */
-	m = BYTESIZE - here.bit ;
+	m = BYTESIZE - here.bit;
-	if ( n < m ) m = n ;
+	if (n < m)m = n;
 	/* extract m bytes from here.worksp */
-	here.worksp <<= m ;
+	here.worksp <<= m;
-	a = ( a << m ) + ( ( here.worksp & HI_MASK ) >> BYTESIZE ) ;
+	a = (a << m) + ((here.worksp & HI_MASK) >> BYTESIZE);
-	here.worksp &= LO_MASK ;
+	here.worksp &= LO_MASK;
-	n -= m ;
+	n -= m;
-	here.bit += m ;
+	here.bit += m;
-	if ( here.bit == BYTESIZE ) {
+	if (here.bit == BYTESIZE) {
-	    here.bit = 0 ;
+	    here.bit = 0;
-	    here.byte++ ;
+	    here.byte++;
+	}
+    }
-    return ( ( long ) a ) ;
+    return((long)a);
+}
 /*
     ALIGN INPUT FILE TO AN 8 BIT BOUNDARY
     Bits are read from the input file until it is on an 8 bit boundary.
 */
-void byte_align
+void
-    PROTO_Z ()
+byte_align(void)
+{
-    while ( !( here.bit == 0 || here.bit == BYTESIZE ) ) {
+    while (!(here.bit == 0 || here.bit == BYTESIZE)) {
-	IGNORE fetch ( 1 ) ;
+	IGNORE fetch(1);
+    }
-    return ;
+    return;
+}
 /*
     GO TO A GIVEN PLACE IN THE INPUT FILE
     The current position is set to the position indicated by the place p.
 */
-void set_place
+void
-    PROTO_N ( ( p ) )
-    PROTO_T ( place *p )
+set_place(place *p)
+{
-    int s ;
+    int s;
-    here.byte = p->byte ;
+    here.byte = p->byte;
-    here.bit = 0 ;
+    here.bit = 0;
-    s = fseek ( tdf_file, here.byte, SEEK_SET ) ;
+    s = fseek(tdf_file, here.byte, SEEK_SET);
-    if ( s ) fatal_error ( "Internal file seek error" ) ;
+    if (s)fatal_error("Internal file seek error");
-    ib_size = 0 ;
+    ib_size = 0;
-    IGNORE fetch ( p->bit ) ;
+    IGNORE fetch(p->bit);
-    return ;
+    return;
+}
 /*
     SKIP THE NEXT n BITS IN THE INPUT FILE
     If n is small, the next n bits are read but discarded.  Otherwise
     set_place is used.
 */
-void skip_bits
+void
-    PROTO_N ( ( n ) )
-    PROTO_T ( long n )
+skip_bits(long n)
+{
-    if ( read_error ) return ;
+    if (read_error) return;
-    if ( n <= 4 * BYTESIZE ) {
+    if (n <= 4 * BYTESIZE) {
-	IGNORE fetch ( ( int ) n ) ;
+	IGNORE fetch((int)n);
     } else {
-	place p ;
+	place p;
-	long b = posn ( here ) + n ;
+	long b = posn(here) + n;
-	p.byte = b / BYTESIZE ;
+	p.byte = b / BYTESIZE;
-	p.bit = ( int ) ( b % BYTESIZE ) ;
+	p.bit = (int)(b % BYTESIZE);
-	set_place ( &p ) ;
+	set_place(&p);
+    }
-    return ;
+    return;
+}
 /*
     ARRAY OF SPACES
     The indentation spaces used during pretty-printing are stored in
     an array.
 */
-static char *spaces1 ;
+static char *spaces1;
 /*
     INITIALIZE SPACES
     This routine initializes the array of indentation spaces, spaces1.
 */
-void init_spaces
+void
-    PROTO_N ( ( d ) )
-    PROTO_T ( int d )
+init_spaces(int d)
+{
-    int i, j ;
+    int i, j;
-    if ( helpflag ) {
+    if (helpflag) {
-	spaces1 = alloc_nof ( char, 5000 ) ;
+	spaces1 = alloc_nof(char, 5000);
 	/* every dth character should be a '.' */
-	for ( i = 0, j = 0 ; i < 5000 ; i++ ) {
+	for (i = 0, j = 0; i < 5000; i++) {
-	    if ( ++j == d ) {
+	    if (++j == d) {
-		spaces1 [i] = '.' ;
+		spaces1[i] = '.';
-		j = 0 ;
+		j = 0;
 	    } else {
-		spaces1 [i] = ' ' ;
+		spaces1[i] = ' ';
+	    }
+	}
+    }
-    return ;
+    return;
+}
 /*
     OUTPUT n SPACES
     This routine outputs n indentation spaces, using the array spaces1
     when appropriate.
 */
-void spaces
+void
-    PROTO_N ( ( n ) )
-    PROTO_T ( int n )
+spaces(int n)
+{
-    if ( n < 0 ) n = 0 ;
+    if (n < 0)n = 0;
-    if ( printflag ) {
+    if (printflag) {
-	if ( helpflag ) {
+	if (helpflag) {
-	    if ( n ) {
+	    if (n) {
-		 IGNORE fwrite ( spaces1, sizeof ( char ),
+		 IGNORE fwrite(spaces1, sizeof(char),
-				   ( size_t ) n, pp_file ) ;
+				  (size_t)n, pp_file);
+	    }
 	} else {
-	    int i ;
+	    int i;
-	    int q = ( n / TBSIZE ) ;
+	    int q = (n / TBSIZE);
-	    int r = ( n % TBSIZE ) ;
+	    int r = (n % TBSIZE);
-	    for ( i = 0 ; i < q ; i++ ) IGNORE fputc ( TAB, pp_file ) ;
+	    for (i = 0; i < q; i++)IGNORE fputc(TAB, pp_file);
-	    for ( i = 0 ; i < r ; i++ ) IGNORE fputc ( SPACE, pp_file ) ;
+	    for (i = 0; i < r; i++)IGNORE fputc(SPACE, pp_file);
+	}
+    }
-    column = n ;
+    column = n;
-    lastc = ' ' ;
+    lastc = ' ';
-    return ;
+    return;
+}

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