aboutsummaryrefslogtreecommitdiffstats
path: root/1.2-netsec/editline/tokenizer.c
diff options
context:
space:
mode:
Diffstat (limited to '1.2-netsec/editline/tokenizer.c')
-rw-r--r--1.2-netsec/editline/tokenizer.c397
1 files changed, 0 insertions, 397 deletions
diff --git a/1.2-netsec/editline/tokenizer.c b/1.2-netsec/editline/tokenizer.c
deleted file mode 100644
index f0de39bc9..000000000
--- a/1.2-netsec/editline/tokenizer.c
+++ /dev/null
@@ -1,397 +0,0 @@
-/* $NetBSD: tokenizer.c,v 1.10 2002/03/18 16:01:00 christos Exp $ */
-
-/*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Christos Zoulas of Cornell University.
- *
- * 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 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
- * SUCH DAMAGE.
- */
-
-#include "config.h"
-#if !defined(lint) && !defined(SCCSID)
-#if 0
-static char sccsid[] = "@(#)tokenizer.c 8.1 (Berkeley) 6/4/93";
-#else
-__RCSID("$NetBSD: tokenizer.c,v 1.10 2002/03/18 16:01:00 christos Exp $");
-#endif
-#endif /* not lint && not SCCSID */
-
-/*
- * tokenize.c: Bourne shell like tokenizer
- */
-#include <string.h>
-#include <stdlib.h>
-#include "tokenizer.h"
-
-typedef enum {
- Q_none, Q_single, Q_double, Q_one, Q_doubleone
-} quote_t;
-
-#define IFS "\t \n"
-
-#define TOK_KEEP 1
-#define TOK_EAT 2
-
-#define WINCR 20
-#define AINCR 10
-
-#define tok_malloc(a) malloc(a)
-#define tok_free(a) free(a)
-#define tok_realloc(a, b) realloc(a, b)
-
-
-struct tokenizer {
- char *ifs; /* In field separator */
- int argc, amax; /* Current and maximum number of args */
- char **argv; /* Argument list */
- char *wptr, *wmax; /* Space and limit on the word buffer */
- char *wstart; /* Beginning of next word */
- char *wspace; /* Space of word buffer */
- quote_t quote; /* Quoting state */
- int flags; /* flags; */
-};
-
-
-private void tok_finish(Tokenizer *);
-
-
-/* tok_finish():
- * Finish a word in the tokenizer.
- */
-private void
-tok_finish(Tokenizer *tok)
-{
-
- *tok->wptr = '\0';
- if ((tok->flags & TOK_KEEP) || tok->wptr != tok->wstart) {
- tok->argv[tok->argc++] = tok->wstart;
- tok->argv[tok->argc] = NULL;
- tok->wstart = ++tok->wptr;
- }
- tok->flags &= ~TOK_KEEP;
-}
-
-
-/* tok_init():
- * Initialize the tokenizer
- */
-public Tokenizer *
-tok_init(const char *ifs)
-{
- Tokenizer *tok = (Tokenizer *) tok_malloc(sizeof(Tokenizer));
-
- tok->ifs = strdup(ifs ? ifs : IFS);
- tok->argc = 0;
- tok->amax = AINCR;
- tok->argv = (char **) tok_malloc(sizeof(char *) * tok->amax);
- if (tok->argv == NULL)
- return (NULL);
- tok->argv[0] = NULL;
- tok->wspace = (char *) tok_malloc(WINCR);
- if (tok->wspace == NULL)
- return (NULL);
- tok->wmax = tok->wspace + WINCR;
- tok->wstart = tok->wspace;
- tok->wptr = tok->wspace;
- tok->flags = 0;
- tok->quote = Q_none;
-
- return (tok);
-}
-
-
-/* tok_reset():
- * Reset the tokenizer
- */
-public void
-tok_reset(Tokenizer *tok)
-{
-
- tok->argc = 0;
- tok->wstart = tok->wspace;
- tok->wptr = tok->wspace;
- tok->flags = 0;
- tok->quote = Q_none;
-}
-
-
-/* tok_end():
- * Clean up
- */
-public void
-tok_end(Tokenizer *tok)
-{
-
- tok_free((ptr_t) tok->ifs);
- tok_free((ptr_t) tok->wspace);
- tok_free((ptr_t) tok->argv);
- tok_free((ptr_t) tok);
-}
-
-
-
-/* tok_line():
- * Bourne shell like tokenizing
- * Return:
- * -1: Internal error
- * 3: Quoted return
- * 2: Unmatched double quote
- * 1: Unmatched single quote
- * 0: Ok
- */
-public int
-tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
-{
- const char *ptr;
-
- for (;;) {
- switch (*(ptr = line++)) {
- case '\'':
- tok->flags |= TOK_KEEP;
- tok->flags &= ~TOK_EAT;
- switch (tok->quote) {
- case Q_none:
- tok->quote = Q_single; /* Enter single quote
- * mode */
- break;
-
- case Q_single: /* Exit single quote mode */
- tok->quote = Q_none;
- break;
-
- case Q_one: /* Quote this ' */
- tok->quote = Q_none;
- *tok->wptr++ = *ptr;
- break;
-
- case Q_double: /* Stay in double quote mode */
- *tok->wptr++ = *ptr;
- break;
-
- case Q_doubleone: /* Quote this ' */
- tok->quote = Q_double;
- *tok->wptr++ = *ptr;
- break;
-
- default:
- return (-1);
- }
- break;
-
- case '"':
- tok->flags &= ~TOK_EAT;
- tok->flags |= TOK_KEEP;
- switch (tok->quote) {
- case Q_none: /* Enter double quote mode */
- tok->quote = Q_double;
- break;
-
- case Q_double: /* Exit double quote mode */
- tok->quote = Q_none;
- break;
-
- case Q_one: /* Quote this " */
- tok->quote = Q_none;
- *tok->wptr++ = *ptr;
- break;
-
- case Q_single: /* Stay in single quote mode */
- *tok->wptr++ = *ptr;
- break;
-
- case Q_doubleone: /* Quote this " */
- tok->quote = Q_double;
- *tok->wptr++ = *ptr;
- break;
-
- default:
- return (-1);
- }
- break;
-
- case '\\':
- tok->flags |= TOK_KEEP;
- tok->flags &= ~TOK_EAT;
- switch (tok->quote) {
- case Q_none: /* Quote next character */
- tok->quote = Q_one;
- break;
-
- case Q_double: /* Quote next character */
- tok->quote = Q_doubleone;
- break;
-
- case Q_one: /* Quote this, restore state */
- *tok->wptr++ = *ptr;
- tok->quote = Q_none;
- break;
-
- case Q_single: /* Stay in single quote mode */
- *tok->wptr++ = *ptr;
- break;
-
- case Q_doubleone: /* Quote this \ */
- tok->quote = Q_double;
- *tok->wptr++ = *ptr;
- break;
-
- default:
- return (-1);
- }
- break;
-
- case '\n':
- tok->flags &= ~TOK_EAT;
- switch (tok->quote) {
- case Q_none:
- tok_finish(tok);
- *argv = (const char **)tok->argv;
- *argc = tok->argc;
- return (0);
-
- case Q_single:
- case Q_double:
- *tok->wptr++ = *ptr; /* Add the return */
- break;
-
- case Q_doubleone: /* Back to double, eat the '\n' */
- tok->flags |= TOK_EAT;
- tok->quote = Q_double;
- break;
-
- case Q_one: /* No quote, more eat the '\n' */
- tok->flags |= TOK_EAT;
- tok->quote = Q_none;
- break;
-
- default:
- return (0);
- }
- break;
-
- case '\0':
- switch (tok->quote) {
- case Q_none:
- /* Finish word and return */
- if (tok->flags & TOK_EAT) {
- tok->flags &= ~TOK_EAT;
- return (3);
- }
- tok_finish(tok);
- *argv = (const char **)tok->argv;
- *argc = tok->argc;
- return (0);
-
- case Q_single:
- return (1);
-
- case Q_double:
- return (2);
-
- case Q_doubleone:
- tok->quote = Q_double;
- *tok->wptr++ = *ptr;
- break;
-
- case Q_one:
- tok->quote = Q_none;
- *tok->wptr++ = *ptr;
- break;
-
- default:
- return (-1);
- }
- break;
-
- default:
- tok->flags &= ~TOK_EAT;
- switch (tok->quote) {
- case Q_none:
- if (strchr(tok->ifs, *ptr) != NULL)
- tok_finish(tok);
- else
- *tok->wptr++ = *ptr;
- break;
-
- case Q_single:
- case Q_double:
- *tok->wptr++ = *ptr;
- break;
-
-
- case Q_doubleone:
- *tok->wptr++ = '\\';
- tok->quote = Q_double;
- *tok->wptr++ = *ptr;
- break;
-
- case Q_one:
- tok->quote = Q_none;
- *tok->wptr++ = *ptr;
- break;
-
- default:
- return (-1);
-
- }
- break;
- }
-
- if (tok->wptr >= tok->wmax - 4) {
- size_t size = tok->wmax - tok->wspace + WINCR;
- char *s = (char *) tok_realloc(tok->wspace, size);
- if (s == NULL)
- return (-1);
-
- if (s != tok->wspace) {
- int i;
- for (i = 0; i < tok->argc; i++) {
- tok->argv[i] =
- (tok->argv[i] - tok->wspace) + s;
- }
- tok->wptr = (tok->wptr - tok->wspace) + s;
- tok->wstart = (tok->wstart - tok->wspace) + s;
- tok->wspace = s;
- }
- tok->wmax = s + size;
- }
- if (tok->argc >= tok->amax - 4) {
- char **p;
- tok->amax += AINCR;
- p = (char **) tok_realloc(tok->argv,
- tok->amax * sizeof(char *));
- if (p == NULL)
- return (-1);
- tok->argv = p;
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 12:41:32 +0000