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-rw-r--r--gconf/argcv.c632
1 files changed, 0 insertions, 632 deletions
diff --git a/gconf/argcv.c b/gconf/argcv.c
deleted file mode 100644
index d5f2bda..0000000
--- a/gconf/argcv.c
+++ /dev/null
@@ -1,632 +0,0 @@
-/* argcv.c - simple functions for parsing input based on whitespace
- Copyright (C) 1999, 2000, 2001, 2003, 2004,
- 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 3 of the License, or (at your option) any later version.
-
- This library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General
- Public License along with this library; if not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301 USA */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <ctype.h>
-#include <c-ctype.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-#include <argcv.h>
-
-enum argcv_quoting_style argcv_quoting_style;
-
-#define _ARGCV_WORD_SED_EXPR 0x1000
-#define _ARGCV_WORD_MASK 0xf000
-
-/*
- * takes a string and splits it into several strings, breaking at ' '
- * command is the string to split
- * the number of strings is placed into argc
- * the split strings are put into argv
- * returns 0 on success, nonzero on failure
- */
-
-#define isws(c) ((c)==' '||(c)=='\t'||(c)=='\n')
-#define isdelim(c,delim) (strchr(delim,(c))!=NULL)
-
-struct argcv_info
-{
- int len;
- const char *command;
- const char *delim;
- const char *comment;
- int flags;
-
- int start;
- int end;
- int save;
- int finish_pos;
-};
-
-static void
-init_argcv_info (struct argcv_info *ap, int flags,
- int len, const char *command, const char *delim,
- const char *comment)
-{
- memset (ap, 0, sizeof *ap);
- ap->len = len;
- ap->command = command;
- ap->delim = delim;
- ap->comment = comment;
- ap->flags = flags;
-}
-
-static int
-skip_sed_expr(const char *command, int i, int len)
-{
- int state;
-
- do
- {
- int delim;
-
- if (command[i] == ';')
- i++;
- if (!(command[i] == 's' && i + 3 < len && c_ispunct(command[i+1])))
- break;
-
- delim = command[++i];
- state = 1;
- for (i++; i < len; i++)
- {
- if (state == 3)
- {
- if (command[i] == delim || !c_isalnum(command[i]))
- break;
- }
- else if (command[i] == '\\')
- i++;
- else if (command[i] == delim)
- state++;
- }
- }
- while (state == 3 && i < len && command[i] == ';');
- i--;
- return i;
-}
-
-static int
-argcv_scan (struct argcv_info *ap)
-{
- int i = 0;
- int len = ap->len;
- const char *command = ap->command;
- const char *delim = ap->delim;
- const char *comment = ap->comment;
-
- for (;;)
- {
- i = ap->save;
-
- if (i >= len)
- return i + 1;
-
- if (ap->flags & ARGCV_WS)
- {
- /* Skip initial whitespace */
- while (i < len && isws (command[i]))
- i++;
- }
- ap->start = i;
-
- ap->flags &= ~_ARGCV_WORD_MASK;
-
- if (ap->flags & ARGCV_SED_EXPR
- && command[i] == 's' && i + 3 < len && c_ispunct(command[i+1]))
- {
- ap->flags |= _ARGCV_WORD_SED_EXPR;
- i = skip_sed_expr(command, i, len);
- }
- else if (!isdelim (command[i], delim))
- {
- while (i < len)
- {
- if (ap->flags & ARGCV_QUOTE)
- {
- if (command[i] == '\\')
- {
- if (++i == len)
- break;
- i++;
- continue;
- }
-
- if (command[i] == '\'' || command[i] == '"')
- {
- int j;
- for (j = i + 1; j < len && command[j] != command[i]; j++)
- if (command[j] == '\\')
- j++;
- if (j < len)
- i = j + 1;
- else
- i++;
- continue;
- }
- }
- if ((ap->flags & ARGCV_WS && isws (command[i]))
- || isdelim (command[i], delim))
- break;
- else
- i++;
- }
- i--;
- }
- else if (!(ap->flags & ARGCV_RETURN_DELIMS))
- {
- if (ap->flags & ARGCV_SQUEEZE_DELIMS)
- while (i < len && isdelim (command[i], delim))
- i++;
- else if (i < len)
- i++;
-
- ap->save = i;
- continue;
- }
-
-
- ap->end = i;
- ap->save = ap->finish_pos = i + 1;
-
- /* If we have a token, and it starts with a comment character, skip
- to the newline and restart the token search. */
- if (ap->save <= len)
- {
- if (strchr (comment, command[ap->start]) != NULL)
- {
- ap->finish_pos = ap->start;
- i = ap->save;
- while (i < len && command[i] != '\n')
- i++;
-
- ap->save = i;
- continue;
- }
- }
- break;
- }
- return ap->save;
-}
-
-static char quote_transtab[] = "\\\\a\ab\bf\fn\nr\rt\tv\v";
-
-int
-argcv_unquote_char (int c)
-{
- char *p;
-
- for (p = quote_transtab; *p; p += 2)
- {
- if (*p == c)
- return p[1];
- }
- return c;
-}
-
-int
-argcv_quote_char (int c)
-{
- char *p;
-
- for (p = quote_transtab + sizeof(quote_transtab) - 2;
- p > quote_transtab; p -= 2)
- {
- if (*p == c)
- return p[-1];
- }
- return -1;
-}
-
-#define to_num(c) \
- (isdigit(c) ? c - '0' : (isxdigit(c) ? toupper(c) - 'A' + 10 : 255 ))
-
-static int
-xtonum (int *pval, const char *src, int base, int cnt)
-{
- int i, val;
-
- for (i = 0, val = 0; i < cnt; i++, src++)
- {
- int n = *(unsigned char*)src;
- if (n > 127 || (n = to_num(n)) >= base)
- break;
- val = val*base + n;
- }
- *pval = val;
- return i;
-}
-
-size_t
-argcv_quoted_length (const char *str, int *quote)
-{
- size_t len = 0;
-
- *quote = 0;
- for (; *str; str++)
- {
- if (*str == ' ')
- {
- len++;
- *quote = 1;
- }
- else if (*str == '"')
- {
- len += 2;
- *quote = 1;
- }
- else if (*str != '\t' && *str != '\\' && isprint (*str))
- len++;
- else
- {
- switch (argcv_quoting_style)
- {
- case argcv_quoting_octal:
- if (argcv_quote_char (*str) != -1)
- len += 2;
- else
- len += 4;
- break;
-
- case argcv_quoting_hex:
- len += 3;
- break;
- }
- }
- }
- return len;
-}
-
-void
-argcv_unquote_copy (char *dst, const char *src, size_t n)
-{
- int i = 0;
- int c;
- int expect_delim = 0;
-
- while (i < n)
- {
- switch (src[i])
- {
- case '\'':
- case '"':
- if (!expect_delim)
- {
- const char *p;
-
- for (p = src+i+1; *p && *p != src[i]; p++)
- if (*p == '\\')
- p++;
- if (*p)
- expect_delim = src[i++];
- else
- *dst++ = src[i++];
- }
- else if (expect_delim == src[i])
- ++i;
- else
- *dst++ = src[i++];
- break;
-
- case '\\':
- ++i;
- if (src[i] == 'x' || src[i] == 'X')
- {
- if (n - i < 2)
- {
- *dst++ = '\\';
- *dst++ = src[i++];
- }
- else
- {
- int off = xtonum(&c, src + i + 1, 16, 2);
- if (off == 0)
- {
- *dst++ = '\\';
- *dst++ = src[i++];
- }
- else
- {
- *dst++ = c;
- i += off + 1;
- }
- }
- }
- else if ((unsigned char)src[i] < 128 && isdigit (src[i]))
- {
- if (n - i < 1)
- {
- *dst++ = '\\';
- *dst++ = src[i++];
- }
- else
- {
- int off = xtonum (&c, src+i, 8, 3);
- if (off == 0)
- {
- *dst++ = '\\';
- *dst++ = src[i++];
- }
- else
- {
- *dst++ = c;
- i += off;
- }
- }
- }
- else
- *dst++ = argcv_unquote_char (src[i++]);
- break;
-
- default:
- *dst++ = src[i++];
- }
- }
- *dst = 0;
-}
-
-void
-argcv_quote_copy (char *dst, const char *src)
-{
- for (; *src; src++)
- {
- if (*src == '"')
- {
- *dst++ = '\\';
- *dst++ = *src;
- }
- else if (*src != '\t' && *src != '\\' && isprint(*src))
- *dst++ = *src;
- else
- {
- char tmp[4];
-
- switch (argcv_quoting_style)
- {
- case argcv_quoting_octal:
- {
- int c = argcv_quote_char (*src);
- *dst++ = '\\';
- if (c != -1)
- *dst++ = c;
- else
- {
- snprintf (tmp, sizeof tmp, "%03o", *(unsigned char*)src);
- memcpy (dst, tmp, 3);
- dst += 3;
- }
- break;
- }
-
- case argcv_quoting_hex:
- snprintf (tmp, sizeof tmp, "%%%02X", *(unsigned char*)src);
- memcpy (dst, tmp, 3);
- dst += 3;
- break;
- }
- }
- }
-}
-
-int
-argcv_get_np (const char *command, int len,
- const char *delim, const char *cmnt,
- int flags,
- int *pargc, char ***pargv, char **endp)
-{
- int i = 0;
- struct argcv_info info;
- int argc;
- char **argv;
-
- if (!delim)
- delim = " ";
- if (!cmnt)
- cmnt = "";
-
- init_argcv_info (&info, flags, len, command, delim, cmnt);
-
- /* Count number of arguments */
- argc = 0;
- while (argcv_scan (&info) <= len)
- argc++;
-
- argv = calloc ((argc + 1), sizeof (char *));
- if (argv == NULL)
- return ENOMEM;
-
- i = 0;
- info.save = 0;
- for (i = 0; i < argc; i++)
- {
- int n;
- int unquote;
-
- argcv_scan (&info);
-
- if (info.flags & ARGCV_QUOTE && !(info.flags & _ARGCV_WORD_SED_EXPR))
- {
- if ((command[info.start] == '"' || command[info.end] == '\'')
- && command[info.end] == command[info.start])
- {
- if (info.start < info.end)
- {
- info.start++;
- info.end--;
- }
- unquote = 0;
- }
- else
- unquote = 1;
- }
- else
- unquote = 0;
-
- n = info.end - info.start + 1;
- argv[i] = calloc (n + 1, sizeof (char));
- if (argv[i] == NULL)
- {
- argcv_free (i, argv);
- return ENOMEM;
- }
- if (unquote)
- argcv_unquote_copy (argv[i], &command[info.start], n);
- else
- memcpy (argv[i], &command[info.start], n);
- argv[i][n] = 0;
- }
- argv[i] = NULL;
-
- *pargc = argc;
- *pargv = argv;
- if (endp)
- *endp = (char*) (command + info.finish_pos);
- return 0;
-}
-
-int
-argcv_get_n (const char *command, int len, const char *delim, const char *cmnt,
- int *pargc, char ***pargv)
-{
- return argcv_get_np (command, len, delim, cmnt, ARGCV_DEFFLAGS,
- pargc, pargv, NULL);
-}
-
-int
-argcv_get (const char *command, const char *delim, const char *cmnt,
- int *argc, char ***argv)
-{
- return argcv_get_np (command, strlen (command), delim, cmnt,
- ARGCV_DEFFLAGS,
- argc, argv, NULL);
-}
-
-
-/*
- * frees all elements of an argv array
- * argc is the number of elements
- * argv is the array
- */
-void
-argcv_free (int argc, char **argv)
-{
- if (argc)
- {
- while (--argc >= 0)
- if (argv[argc])
- free (argv[argc]);
- free (argv);
- }
-}
-
-void
-argv_free (char **argv)
-{
- int i;
-
- for (i = 0; argv[i]; i++)
- free (argv[i]);
- free (argv);
-}
-
-/* Make a argv an make string separated by ' '. */
-
-int
-argcv_string (int argc, char **argv, char **pstring)
-{
- size_t i, j, len;
- char *buffer;
-
- /* No need. */
- if (pstring == NULL)
- return EINVAL;
-
- buffer = malloc (1);
- if (buffer == NULL)
- return ENOMEM;
- *buffer = '\0';
-
- for (len = i = j = 0; i < argc; i++)
- {
- int quote;
- int toklen;
-
- toklen = argcv_quoted_length (argv[i], &quote);
-
- len += toklen + 2;
- if (quote)
- len += 2;
-
- buffer = realloc (buffer, len);
- if (buffer == NULL)
- return ENOMEM;
-
- if (i != 0)
- buffer[j++] = ' ';
- if (quote)
- buffer[j++] = '"';
- argcv_quote_copy (buffer + j, argv[i]);
- j += toklen;
- if (quote)
- buffer[j++] = '"';
- }
-
- for (; j > 0 && isspace (buffer[j-1]); j--)
- ;
- buffer[j] = 0;
- if (pstring)
- *pstring = buffer;
- return 0;
-}
-
-void
-argcv_remove (int *pargc, char ***pargv,
- int (*sel) (const char *, void *), void *data)
-{
- int i, j;
- int argc = *pargc;
- char **argv = *pargv;
- int cnt = 0;
-
- for (i = j = 0; i < argc; i++)
- {
- if (sel (argv[i], data))
- {
- free (argv[i]);
- cnt++;
- }
- else
- {
- if (i != j)
- argv[j] = argv[i];
- j++;
- }
- }
- if (i != j)
- argv[j] = NULL;
- argc -= cnt;
-
- *pargc = argc;
- *pargv = argv;
-}
-
-

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