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Diffstat (limited to 'usr.bin/xlint/common/emit.c')
| -rw-r--r-- | usr.bin/xlint/common/emit.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/usr.bin/xlint/common/emit.c b/usr.bin/xlint/common/emit.c new file mode 100644 index 0000000..9413433 --- /dev/null +++ b/usr.bin/xlint/common/emit.c @@ -0,0 +1,234 @@ +/* $NetBSD: emit.c,v 1.2 2002/01/21 19:49:51 tv Exp $ */ + +/* + * Copyright (c) 1994, 1995 Jochen Pohl + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Jochen Pohl for + * The NetBSD Project. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#include <sys/cdefs.h> +#if defined(__RCSID) && !defined(lint) +__RCSID("$NetBSD: emit.c,v 1.2 2002/01/21 19:49:51 tv Exp $"); +#endif + +#include <ctype.h> +#include <stdio.h> +#include <string.h> + +#include "lint.h" + +/* name and handle of output file */ +static const char *loname; +static FILE *lout; + +/* output buffer data */ +ob_t ob; + +static void outxbuf(void); + + +/* + * initialize output + */ +void +outopen(const char *name) +{ + + loname = name; + + /* Open output file */ + if ((lout = fopen(name, "w")) == NULL) + err(1, "cannot open '%s'", name); + + /* Create output buffer */ + ob.o_len = 1024; + ob.o_end = (ob.o_buf = ob.o_nxt = xmalloc(ob.o_len)) + ob.o_len; +} + +/* + * flush output buffer and close file + */ +void +outclose(void) +{ + + outclr(); + if (fclose(lout) == EOF) + err(1, "cannot close '%s'", loname); +} + +/* + * resize output buffer + */ +static void +outxbuf(void) +{ + ptrdiff_t coffs; + + coffs = ob.o_nxt - ob.o_buf; + ob.o_len *= 2; + ob.o_end = (ob.o_buf = xrealloc(ob.o_buf, ob.o_len)) + ob.o_len; + ob.o_nxt = ob.o_buf + coffs; +} + +/* + * reset output buffer + * if it is not empty, it is flushed + */ +void +outclr(void) +{ + size_t sz; + + if (ob.o_buf != ob.o_nxt) { + outchar('\n'); + sz = ob.o_nxt - ob.o_buf; + if (sz > ob.o_len) + errx(1, "internal error: outclr() 1"); + if (fwrite(ob.o_buf, sz, 1, lout) != 1) + err(1, "cannot write to %s", loname); + ob.o_nxt = ob.o_buf; + } +} + +/* + * write a character to the output buffer + */ +void +outchar(int c) +{ + + if (ob.o_nxt == ob.o_end) + outxbuf(); + *ob.o_nxt++ = (char)c; +} + +/* + * write a character to the output buffer, qouted if necessary + */ +void +outqchar(int c) +{ + + if (isprint(c) && c != '\\' && c != '"' && c != '\'') { + outchar(c); + } else { + outchar('\\'); + switch (c) { + case '\\': + outchar('\\'); + break; + case '"': + outchar('"'); + break; + case '\'': + outchar('\''); + break; + case '\b': + outchar('b'); + break; + case '\t': + outchar('t'); + break; + case '\n': + outchar('n'); + break; + case '\f': + outchar('f'); + break; + case '\r': + outchar('r'); + break; + case '\v': + outchar('v'); + break; + case '\a': + outchar('a'); + break; + default: + outchar((((u_int)c >> 6) & 07) + '0'); + outchar((((u_int)c >> 3) & 07) + '0'); + outchar((c & 07) + '0'); + break; + } + } +} + +/* + * write a strint to the output buffer + * the string must not contain any characters which + * should be quoted + */ +void +outstrg(const char *s) +{ + + while (*s != '\0') { + if (ob.o_nxt == ob.o_end) + outxbuf(); + *ob.o_nxt++ = *s++; + } +} + +/* + * write an integer value to toe output buffer + */ +void +outint(int i) +{ + + if ((ob.o_end - ob.o_nxt) < 3 * sizeof (int)) + outxbuf(); + ob.o_nxt += sprintf(ob.o_nxt, "%d", i); +} + +/* + * write the name of a symbol to the output buffer + * the name is preceded by its length + */ +void +outname(const char *name) +{ + + if (name == NULL) + errx(1, "internal error: outname() 1"); + outint((int)strlen(name)); + outstrg(name); +} + +/* + * write the name of the .c source + */ +void +outsrc(const char *name) +{ + + outclr(); + outchar('S'); + outstrg(name); +} |
