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Diffstat (limited to 'lib/argcv.c')
| -rw-r--r-- | lib/argcv.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/lib/argcv.c b/lib/argcv.c deleted file mode 100644 index 291f5c44d..000000000 --- a/lib/argcv.c +++ /dev/null @@ -1,211 +0,0 @@ -/* argcv.c - simple functions for parsing input based on whitespace - Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <ctype.h> - -#include "argcv.h" - -/* - * 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) ((c)=='"'||strchr(delim,(c))!=NULL) - -static int -argcv_scan (int len, const char *command, const char *delim, const char* cmnt, - int *start, int *end, int *save) -{ - int i = 0; - - for (;;) - { - i = *save; - - if (i >= len) - return i + 1; - - /* Skip initial whitespace */ - while (i < len && isws (command[i])) - i++; - *start = i; - - switch (command[i]) - { - case '"': - case '\'': - while (++i < len && command[i] != command[*start]) - ; - if (i < len) /* found matching quote */ - break; - /*FALLTHRU*/ default: - if (isdelim (command[i], delim)) - break; - /* Skip until next whitespace character or end of line */ - while (++i < len && - !(isws (command[i]) || isdelim (command[i], delim))) - ; - i--; - break; - } - - *end = i; - *save = i + 1; - - /* If we have a token, and it starts with a comment character, skip - to the newline and restart the token search. */ - if (*save <= len) - { - if (cmnt && strchr (cmnt, command[*start]) != NULL) - { - i = *save; - while (i < len && command[i] != '\n') - i++; - - *save = i; - continue; - } - } - break; - } - return *save; -} - -int -argcv_get (const char *command, const char *delim, const char* cmnt, - int *argc, char ***argv) -{ - int len = strlen (command); - int i = 0; - int start, end, save; - - *argv = NULL; - - /* Count number of arguments */ - *argc = 0; - save = 0; - - while (argcv_scan (len, command, delim, cmnt, &start, &end, &save) <= len) - (*argc)++; - - *argv = calloc ((*argc + 1), sizeof (char *)); - - i = 0; - save = 0; - for (i = 0; i < *argc; i++) - { - int n; - argcv_scan (len, command, delim, cmnt, &start, &end, &save); - - /* FIXME: this is the right place to do unescaping as well - as stripping of quotes. */ - if (command[start] == '"' && command[end] == '"') - { - start++; - end--; - } - else if (command[start] == '\'' && command[end] == '\'') - { - start++; - end--; - } - n = end - start + 1; - (*argv)[i] = calloc (n+1, sizeof (char)); - if ((*argv)[i] == NULL) - return 1; - memcpy ((*argv)[i], &command[start], n); - (*argv)[i][n] = 0; - } - (*argv)[i] = NULL; - return 0; -} - -/* - * frees all elements of an argv array - * argc is the number of elements - * argv is the array - */ -int -argcv_free (int argc, char **argv) -{ - while (--argc >= 0) - if (argv[argc]) - free (argv[argc]); - free (argv); - return 1; -} - -/* Take a argv an make string separated by ' '. */ - -int -argcv_string (int argc, char **argv, char **pstring) -{ - int i; - size_t len; - char *buffer; - - /* No need. */ - if (pstring == NULL) - return 1; - - buffer = malloc (1); - if (buffer == NULL) - return 1; - *buffer = '\0'; - - for (len = i = 0; i < argc; i++) - { - len += strlen (argv[i]) + 2; - buffer = realloc (buffer, len); - if (buffer == NULL) - return 1; - if (i != 0) - strcat (buffer, " "); - strcat (buffer, argv[i]); - } - - /* Strip off trailing space. */ - if (*buffer != '\0') - { - while (buffer[strlen (buffer) - 1] == ' ') - { - buffer[strlen (buffer) - 1] = '\0'; - } - } - if (pstring) - *pstring = buffer; - return 0; -} - -#if 0 -char *command = "set prompt=\"& \" "; - -main(int xargc, char **xargv) -{ - int i, argc; - char **argv; - - argcv_get (xargv[1] ? xargv[1]:command, "=", "#", &argc, &argv); - printf ("%d args:\n", argc); - for (i = 0; i < argc; i++) - printf ("%s\n", argv[i]); -} -#endif |