diff options
Diffstat (limited to 'examples/argcontext.c')
| -rw-r--r-- | examples/argcontext.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/examples/argcontext.c b/examples/argcontext.c deleted file mode 100644 index 222c0e68..00000000 --- a/examples/argcontext.c +++ /dev/null @@ -1,248 +0,0 @@ -/* argcontext.c - Simple command line argument parsing - * Copyright 1999, 2003 Red Hat Software - * - * 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 2 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., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include <string.h> -#include <stdlib.h> -#include <errno.h> - -#include "argcontext.h" - -struct _ArgContext -{ - GPtrArray *tables; - gpointer cb_data; -}; - -GQuark -arg_context_error_quark (void) -{ - static GQuark q = 0; - if (q == 0) - q = g_quark_from_static_string ("arg-context-error-quark"); - - return q; -} - -ArgContext * -arg_context_new (gpointer cb_data) -{ - ArgContext *result = g_new (ArgContext, 1); - result->tables = g_ptr_array_new (); - result->cb_data = cb_data; - - return result; -} - -void -arg_context_free (ArgContext *context) -{ - g_ptr_array_free (context->tables, TRUE); - g_free (context); -} - -void -arg_context_add_table (ArgContext *context, - const ArgDesc *table) -{ - g_ptr_array_add (context->tables, (ArgDesc *)table); -} - -static gboolean -parse_int (const char *arg_name, - const char *arg, - gint *result, - GError **error) -{ - gchar *end; - glong tmp = strtol (arg, &end, 0); - - errno = 0; - - if (*arg == '\0' || *end != '\0') - { - g_set_error (error, - ARG_CONTEXT_ERROR, ARG_CONTEXT_ERROR_BAD_VALUE, - "Cannot parse integer value '%s' for --%s", - arg, arg_name); - return FALSE; - } - - *result = tmp; - if (*result != tmp || errno == ERANGE) - { - g_set_error (error, - ARG_CONTEXT_ERROR, ARG_CONTEXT_ERROR_BAD_VALUE, - "Integer value '%s' for %s out of range", - arg, arg_name); - return FALSE; - } - - return TRUE; -} - -void -arg_context_print_help (ArgContext *context) -{ - unsigned int j, k; - int max_name_len = 0; - - for (j = 0; j < context->tables->len; j++) - { - ArgDesc *table = context->tables->pdata[j]; - for (k = 0; table[k].name; k++) - max_name_len = MAX (strlen (table[k].name), max_name_len); - } - - for (j = 0; j < context->tables->len; j++) - { - ArgDesc *table = context->tables->pdata[j]; - for (k = 0; table[k].name; k++) - g_print (" --%-*s %s\n", - max_name_len, table[k].name, - table[k].help ? table[k].help : ""); - } -} - -gboolean -arg_context_parse (ArgContext *context, - gint *argc, - gchar ***argv, - GError **error) -{ - int i, j, k; - - if (argc && argv) - { - for (i = 1; i < *argc; i++) - { - char *arg; - - if ((*argv)[i][0] == '-' && (*argv)[i][1] != '-') - { - g_set_error (error, - ARG_CONTEXT_ERROR, ARG_CONTEXT_ERROR_UNKNOWN_OPTION, - "Unknown option %s", (*argv)[i]); - return FALSE; - } - - if (!((*argv)[i][0] == '-' && (*argv)[i][1] == '-')) - continue; - - arg = (*argv)[i] + 2; - - /* '--' terminates list of arguments */ - if (*arg == '\0') - { - (*argv)[i] = NULL; - break; - } - - for (j = 0; j < context->tables->len; j++) - { - ArgDesc *table = context->tables->pdata[j]; - for (k = 0; table[k].name; k++) - { - switch (table[k].type) - { - case ARG_STRING: - case ARG_CALLBACK: - case ARG_INT: - { - int len = strlen (table[k].name); - - if (strncmp (arg, table[k].name, len) == 0 && - (arg[len] == '=' || arg[len] == 0)) - { - const char *value = NULL; - - (*argv)[i] = NULL; - - if (arg[len] == '=') - value = arg + len + 1; - else if (i < *argc - 1) - { - value = (*argv)[i + 1]; - (*argv)[i+1] = NULL; - i++; - } - else - value = ""; - - switch (table[k].type) - { - case ARG_STRING: - *(const gchar **)table[k].location = value; - break; - case ARG_INT: - if (!parse_int (table[k].name, value, - (gint *)table[k].location, - error)) - return FALSE; - break; - case ARG_CALLBACK: - (*table[k].callback)(context, table[k].name, value, context->cb_data); - break; - default: - ; - } - - goto next_arg; - } - break; - } - case ARG_BOOL: - case ARG_NOBOOL: - if (strcmp (arg, table[k].name) == 0) - { - (*argv)[i] = NULL; - - *(gboolean *)table[k].location = (table[k].type == ARG_BOOL) ? TRUE : FALSE; - goto next_arg; - } - } - } - } - g_set_error (error, - ARG_CONTEXT_ERROR, ARG_CONTEXT_ERROR_UNKNOWN_OPTION, - "Unknown option --%s", - arg); - return FALSE; - - next_arg: - ; - } - - for (i = 1; i < *argc; i++) - { - for (k = i; k < *argc; k++) - if ((*argv)[k] != NULL) - break; - - if (k > i) - { - k -= i; - for (j = i + k; j < *argc; j++) - (*argv)[j-k] = (*argv)[j]; - *argc -= k; - } - } - } - - return TRUE; -} |