forked from OSchip/llvm-project
1312 lines
27 KiB
C
1312 lines
27 KiB
C
/*
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* Copyright 2008-2009 Katholieke Universiteit Leuven
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*
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* Use of this software is governed by the MIT license
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*
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* Written by Sven Verdoolaege, K.U.Leuven, Departement
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* Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <isl/arg.h>
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#include <isl/ctx.h>
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#include <isl_config.h>
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static struct isl_arg help_arg[] = {
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ISL_ARG_PHANTOM_BOOL('h', "help", NULL, "print this help, then exit")
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};
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static void set_default_choice(struct isl_arg *arg, void *opt)
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{
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if (arg->offset == ISL_ARG_OFFSET_NONE)
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return;
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*(unsigned *)(((char *)opt) + arg->offset) = arg->u.choice.default_value;
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}
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static void set_default_flags(struct isl_arg *arg, void *opt)
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{
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*(unsigned *)(((char *)opt) + arg->offset) = arg->u.flags.default_value;
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}
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static void set_default_bool(struct isl_arg *arg, void *opt)
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{
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if (arg->offset == ISL_ARG_OFFSET_NONE)
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return;
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*(unsigned *)(((char *)opt) + arg->offset) = arg->u.b.default_value;
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}
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static void set_default_child(struct isl_arg *arg, void *opt)
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{
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void *child;
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if (arg->offset == ISL_ARG_OFFSET_NONE)
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child = opt;
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else {
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child = calloc(1, arg->u.child.child->options_size);
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*(void **)(((char *)opt) + arg->offset) = child;
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}
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if (child)
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isl_args_set_defaults(arg->u.child.child, child);
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}
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static void set_default_user(struct isl_arg *arg, void *opt)
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{
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arg->u.user.init(((char *)opt) + arg->offset);
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}
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static void set_default_int(struct isl_arg *arg, void *opt)
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{
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*(int *)(((char *)opt) + arg->offset) = arg->u.i.default_value;
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}
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static void set_default_long(struct isl_arg *arg, void *opt)
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{
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*(long *)(((char *)opt) + arg->offset) = arg->u.l.default_value;
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}
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static void set_default_ulong(struct isl_arg *arg, void *opt)
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{
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*(unsigned long *)(((char *)opt) + arg->offset) = arg->u.ul.default_value;
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}
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static void set_default_str(struct isl_arg *arg, void *opt)
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{
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const char *str = NULL;
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if (arg->u.str.default_value)
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str = strdup(arg->u.str.default_value);
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*(const char **)(((char *)opt) + arg->offset) = str;
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}
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static void set_default_str_list(struct isl_arg *arg, void *opt)
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{
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*(const char ***)(((char *) opt) + arg->offset) = NULL;
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*(int *)(((char *) opt) + arg->u.str_list.offset_n) = 0;
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}
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void isl_args_set_defaults(struct isl_args *args, void *opt)
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{
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int i;
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for (i = 0; args->args[i].type != isl_arg_end; ++i) {
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switch (args->args[i].type) {
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case isl_arg_choice:
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set_default_choice(&args->args[i], opt);
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break;
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case isl_arg_flags:
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set_default_flags(&args->args[i], opt);
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break;
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case isl_arg_bool:
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set_default_bool(&args->args[i], opt);
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break;
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case isl_arg_child:
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set_default_child(&args->args[i], opt);
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break;
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case isl_arg_user:
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set_default_user(&args->args[i], opt);
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break;
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case isl_arg_int:
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set_default_int(&args->args[i], opt);
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break;
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case isl_arg_long:
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set_default_long(&args->args[i], opt);
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break;
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case isl_arg_ulong:
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set_default_ulong(&args->args[i], opt);
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break;
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case isl_arg_arg:
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case isl_arg_str:
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set_default_str(&args->args[i], opt);
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break;
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case isl_arg_str_list:
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set_default_str_list(&args->args[i], opt);
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break;
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case isl_arg_alias:
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case isl_arg_footer:
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case isl_arg_version:
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case isl_arg_end:
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break;
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}
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}
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}
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static void free_args(struct isl_arg *arg, void *opt);
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static void free_child(struct isl_arg *arg, void *opt)
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{
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if (arg->offset == ISL_ARG_OFFSET_NONE)
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free_args(arg->u.child.child->args, opt);
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else
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isl_args_free(arg->u.child.child,
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*(void **)(((char *)opt) + arg->offset));
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}
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static void free_str_list(struct isl_arg *arg, void *opt)
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{
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int i;
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int n = *(int *)(((char *) opt) + arg->u.str_list.offset_n);
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char **list = *(char ***)(((char *) opt) + arg->offset);
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for (i = 0; i < n; ++i)
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free(list[i]);
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free(list);
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}
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static void free_user(struct isl_arg *arg, void *opt)
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{
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if (arg->u.user.clear)
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arg->u.user.clear(((char *)opt) + arg->offset);
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}
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static void free_args(struct isl_arg *arg, void *opt)
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{
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int i;
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for (i = 0; arg[i].type != isl_arg_end; ++i) {
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switch (arg[i].type) {
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case isl_arg_child:
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free_child(&arg[i], opt);
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break;
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case isl_arg_arg:
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case isl_arg_str:
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free(*(char **)(((char *)opt) + arg[i].offset));
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break;
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case isl_arg_str_list:
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free_str_list(&arg[i], opt);
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break;
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case isl_arg_user:
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free_user(&arg[i], opt);
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break;
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case isl_arg_alias:
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case isl_arg_bool:
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case isl_arg_choice:
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case isl_arg_flags:
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case isl_arg_int:
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case isl_arg_long:
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case isl_arg_ulong:
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case isl_arg_version:
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case isl_arg_footer:
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case isl_arg_end:
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break;
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}
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}
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}
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void isl_args_free(struct isl_args *args, void *opt)
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{
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if (!opt)
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return;
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free_args(args->args, opt);
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free(opt);
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}
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/* Data structure for collecting the prefixes of ancestor nodes.
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*
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* n is the number of prefixes.
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* prefix[i] for i < n is a prefix of an ancestor.
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* len[i] for i < n is the length of prefix[i].
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*/
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struct isl_prefixes {
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int n;
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const char *prefix[10];
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size_t len[10];
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};
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/* Add "prefix" to the list of prefixes and return the updated
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* number of prefixes.
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*/
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static int add_prefix(struct isl_prefixes *prefixes, const char *prefix)
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{
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int n = prefixes->n;
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if (!prefix)
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return n;
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if (prefixes->n >= 10) {
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fprintf(stderr, "too many prefixes\n");
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exit(EXIT_FAILURE);
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}
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prefixes->len[prefixes->n] = strlen(prefix);
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prefixes->prefix[prefixes->n] = prefix;
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prefixes->n++;
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return n;
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}
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/* Drop all prefixes starting at "first".
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*/
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static void drop_prefix(struct isl_prefixes *prefixes, int first)
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{
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prefixes->n = first;
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}
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/* Print the prefixes in "prefixes".
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*/
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static int print_prefixes(struct isl_prefixes *prefixes)
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{
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int i;
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int len = 0;
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if (!prefixes)
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return 0;
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for (i = 0; i < prefixes->n; ++i) {
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printf("%s-", prefixes->prefix[i]);
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len += strlen(prefixes->prefix[i]) + 1;
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}
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return len;
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}
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/* Check if "name" starts with one or more of the prefixes in "prefixes",
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* starting at *first. If so, advance the pointer beyond the prefixes
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* and return the updated pointer. Additionally, update *first to
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* the index after the last prefix found.
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*/
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static const char *skip_prefixes(const char *name,
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struct isl_prefixes *prefixes, int *first)
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{
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int i;
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for (i = first ? *first : 0; i < prefixes->n; ++i) {
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size_t len = prefixes->len[i];
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const char *prefix = prefixes->prefix[i];
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if (strncmp(name, prefix, len) == 0 && name[len] == '-') {
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name += len + 1;
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if (first)
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*first = i + 1;
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}
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}
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return name;
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}
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static int print_arg_help(struct isl_arg *decl, struct isl_prefixes *prefixes,
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int no)
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{
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int len = 0;
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if (!decl->long_name) {
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printf(" -%c", decl->short_name);
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return 4;
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}
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if (decl->short_name) {
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printf(" -%c, --", decl->short_name);
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len += 8;
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} else if (decl->flags & ISL_ARG_SINGLE_DASH) {
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printf(" -");
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len += 3;
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} else {
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printf(" --");
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len += 8;
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}
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if (no) {
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printf("no-");
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len += 3;
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}
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len += print_prefixes(prefixes);
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printf("%s", decl->long_name);
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len += strlen(decl->long_name);
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while ((++decl)->type == isl_arg_alias) {
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printf(", --");
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len += 4;
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if (no) {
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printf("no-");
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len += 3;
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}
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printf("%s", decl->long_name);
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len += strlen(decl->long_name);
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}
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return len;
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}
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const void *isl_memrchr(const void *s, int c, size_t n)
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{
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const char *p = s;
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while (n-- > 0)
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if (p[n] == c)
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return p + n;
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return NULL;
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}
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static int wrap_msg(const char *s, int indent, int pos)
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{
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int len;
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int wrap_len = 75 - indent;
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if (pos + 1 >= indent)
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printf("\n%*s", indent, "");
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else
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printf("%*s", indent - pos, "");
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len = strlen(s);
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while (len > wrap_len) {
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const char *space = isl_memrchr(s, ' ', wrap_len);
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int l;
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if (!space)
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space = strchr(s + wrap_len, ' ');
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if (!space)
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break;
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l = space - s;
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printf("%.*s", l, s);
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s = space + 1;
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len -= l + 1;
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printf("\n%*s", indent, "");
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}
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printf("%s", s);
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return len;
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}
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static int print_help_msg(struct isl_arg *decl, int pos)
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{
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if (!decl->help_msg)
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return pos;
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return wrap_msg(decl->help_msg, 30, pos);
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}
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static void print_default(struct isl_arg *decl, const char *def, int pos)
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{
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const char *default_prefix = "[default: ";
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const char *default_suffix = "]";
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int len;
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len = strlen(default_prefix) + strlen(def) + strlen(default_suffix);
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if (!decl->help_msg) {
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if (pos >= 29)
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printf("\n%30s", "");
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else
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printf("%*s", 30 - pos, "");
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} else {
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if (pos + len >= 48)
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printf("\n%30s", "");
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else
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printf(" ");
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}
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printf("%s%s%s", default_prefix, def, default_suffix);
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}
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static void print_default_choice(struct isl_arg *decl, void *opt, int pos)
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{
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int i;
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const char *s = "none";
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unsigned *p;
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p = (unsigned *)(((char *) opt) + decl->offset);
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for (i = 0; decl->u.choice.choice[i].name; ++i)
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if (decl->u.choice.choice[i].value == *p) {
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s = decl->u.choice.choice[i].name;
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break;
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}
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print_default(decl, s, pos);
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}
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static void print_choice_help(struct isl_arg *decl,
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struct isl_prefixes *prefixes, void *opt)
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{
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int i;
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int pos;
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pos = print_arg_help(decl, prefixes, 0);
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printf("=");
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pos++;
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for (i = 0; decl->u.choice.choice[i].name; ++i) {
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if (i) {
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printf("|");
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pos++;
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}
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printf("%s", decl->u.choice.choice[i].name);
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pos += strlen(decl->u.choice.choice[i].name);
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}
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pos = print_help_msg(decl, pos);
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print_default_choice(decl, opt, pos);
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printf("\n");
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}
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static void print_default_flags(struct isl_arg *decl, void *opt, int pos)
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{
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int i, first;
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const char *default_prefix = "[default: ";
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const char *default_suffix = "]";
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int len = strlen(default_prefix) + strlen(default_suffix);
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unsigned *p;
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p = (unsigned *)(((char *) opt) + decl->offset);
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for (i = 0; decl->u.flags.flags[i].name; ++i)
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if ((*p & decl->u.flags.flags[i].mask) ==
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decl->u.flags.flags[i].value)
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len += strlen(decl->u.flags.flags[i].name);
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if (!decl->help_msg) {
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if (pos >= 29)
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printf("\n%30s", "");
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else
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printf("%*s", 30 - pos, "");
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} else {
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if (pos + len >= 48)
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printf("\n%30s", "");
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else
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printf(" ");
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}
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printf("%s", default_prefix);
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for (first = 1, i = 0; decl->u.flags.flags[i].name; ++i)
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if ((*p & decl->u.flags.flags[i].mask) ==
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decl->u.flags.flags[i].value) {
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if (!first)
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printf(",");
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printf("%s", decl->u.flags.flags[i].name);
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first = 0;
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}
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printf("%s", default_suffix);
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}
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static void print_flags_help(struct isl_arg *decl,
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struct isl_prefixes *prefixes, void *opt)
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{
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int i, j;
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int pos;
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pos = print_arg_help(decl, prefixes, 0);
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printf("=");
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pos++;
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for (i = 0; decl->u.flags.flags[i].name; ++i) {
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if (i) {
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printf(",");
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pos++;
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}
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for (j = i;
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decl->u.flags.flags[j].mask == decl->u.flags.flags[i].mask;
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++j) {
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if (j != i) {
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printf("|");
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pos++;
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}
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printf("%s", decl->u.flags.flags[j].name);
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pos += strlen(decl->u.flags.flags[j].name);
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}
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i = j - 1;
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}
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pos = print_help_msg(decl, pos);
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print_default_flags(decl, opt, pos);
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printf("\n");
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}
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static void print_bool_help(struct isl_arg *decl,
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struct isl_prefixes *prefixes, void *opt)
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{
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int pos;
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unsigned *p = opt ? (unsigned *)(((char *) opt) + decl->offset) : NULL;
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int no = p ? *p == 1 : 0;
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pos = print_arg_help(decl, prefixes, no);
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pos = print_help_msg(decl, pos);
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if (decl->offset != ISL_ARG_OFFSET_NONE)
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print_default(decl, no ? "yes" : "no", pos);
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printf("\n");
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}
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static int print_argument_name(struct isl_arg *decl, const char *name, int pos)
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{
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printf("%c<%s>", decl->long_name ? '=' : ' ', name);
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return pos + 3 + strlen(name);
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}
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|
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static void print_int_help(struct isl_arg *decl,
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struct isl_prefixes *prefixes, void *opt)
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{
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int pos;
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char val[20];
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int *p = (int *)(((char *) opt) + decl->offset);
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pos = print_arg_help(decl, prefixes, 0);
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pos = print_argument_name(decl, decl->argument_name, pos);
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pos = print_help_msg(decl, pos);
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snprintf(val, sizeof(val), "%d", *p);
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print_default(decl, val, pos);
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printf("\n");
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}
|
|
|
|
static void print_long_help(struct isl_arg *decl,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int pos;
|
|
long *p = (long *)(((char *) opt) + decl->offset);
|
|
pos = print_arg_help(decl, prefixes, 0);
|
|
if (*p != decl->u.l.default_selected) {
|
|
printf("[");
|
|
pos++;
|
|
}
|
|
printf("=long");
|
|
pos += 5;
|
|
if (*p != decl->u.l.default_selected) {
|
|
printf("]");
|
|
pos++;
|
|
}
|
|
print_help_msg(decl, pos);
|
|
printf("\n");
|
|
}
|
|
|
|
static void print_ulong_help(struct isl_arg *decl,
|
|
struct isl_prefixes *prefixes)
|
|
{
|
|
int pos;
|
|
pos = print_arg_help(decl, prefixes, 0);
|
|
printf("=ulong");
|
|
pos += 6;
|
|
print_help_msg(decl, pos);
|
|
printf("\n");
|
|
}
|
|
|
|
static void print_str_help(struct isl_arg *decl,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int pos;
|
|
const char *a = decl->argument_name ? decl->argument_name : "string";
|
|
const char **p = (const char **)(((char *) opt) + decl->offset);
|
|
pos = print_arg_help(decl, prefixes, 0);
|
|
pos = print_argument_name(decl, a, pos);
|
|
pos = print_help_msg(decl, pos);
|
|
if (*p)
|
|
print_default(decl, *p, pos);
|
|
printf("\n");
|
|
}
|
|
|
|
static void print_str_list_help(struct isl_arg *decl,
|
|
struct isl_prefixes *prefixes)
|
|
{
|
|
int pos;
|
|
const char *a = decl->argument_name ? decl->argument_name : "string";
|
|
pos = print_arg_help(decl, prefixes, 0);
|
|
pos = print_argument_name(decl, a, pos);
|
|
pos = print_help_msg(decl, pos);
|
|
printf("\n");
|
|
}
|
|
|
|
static void print_help(struct isl_arg *arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int i;
|
|
int any = 0;
|
|
|
|
for (i = 0; arg[i].type != isl_arg_end; ++i) {
|
|
if (arg[i].flags & ISL_ARG_HIDDEN)
|
|
continue;
|
|
switch (arg[i].type) {
|
|
case isl_arg_flags:
|
|
print_flags_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_choice:
|
|
print_choice_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_bool:
|
|
print_bool_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_int:
|
|
print_int_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_long:
|
|
print_long_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_ulong:
|
|
print_ulong_help(&arg[i], prefixes);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_str:
|
|
print_str_help(&arg[i], prefixes, opt);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_str_list:
|
|
print_str_list_help(&arg[i], prefixes);
|
|
any = 1;
|
|
break;
|
|
case isl_arg_alias:
|
|
case isl_arg_version:
|
|
case isl_arg_arg:
|
|
case isl_arg_footer:
|
|
case isl_arg_child:
|
|
case isl_arg_user:
|
|
case isl_arg_end:
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; arg[i].type != isl_arg_end; ++i) {
|
|
void *child;
|
|
int first;
|
|
|
|
if (arg[i].type != isl_arg_child)
|
|
continue;
|
|
if (arg[i].flags & ISL_ARG_HIDDEN)
|
|
continue;
|
|
|
|
if (any)
|
|
printf("\n");
|
|
if (arg[i].help_msg)
|
|
printf(" %s\n", arg[i].help_msg);
|
|
if (arg[i].offset == ISL_ARG_OFFSET_NONE)
|
|
child = opt;
|
|
else
|
|
child = *(void **)(((char *) opt) + arg[i].offset);
|
|
first = add_prefix(prefixes, arg[i].long_name);
|
|
print_help(arg[i].u.child.child->args, prefixes, child);
|
|
drop_prefix(prefixes, first);
|
|
any = 1;
|
|
}
|
|
}
|
|
|
|
static const char *prog_name(const char *prog)
|
|
{
|
|
const char *slash;
|
|
|
|
slash = strrchr(prog, '/');
|
|
if (slash)
|
|
prog = slash + 1;
|
|
if (strncmp(prog, "lt-", 3) == 0)
|
|
prog += 3;
|
|
|
|
return prog;
|
|
}
|
|
|
|
static int any_version(struct isl_arg *decl)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; decl[i].type != isl_arg_end; ++i) {
|
|
switch (decl[i].type) {
|
|
case isl_arg_version:
|
|
return 1;
|
|
case isl_arg_child:
|
|
if (any_version(decl[i].u.child.child->args))
|
|
return 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void print_help_and_exit(struct isl_arg *arg, const char *prog,
|
|
void *opt)
|
|
{
|
|
int i;
|
|
struct isl_prefixes prefixes = { 0 };
|
|
|
|
printf("Usage: %s [OPTION...]", prog_name(prog));
|
|
|
|
for (i = 0; arg[i].type != isl_arg_end; ++i)
|
|
if (arg[i].type == isl_arg_arg)
|
|
printf(" %s", arg[i].argument_name);
|
|
|
|
printf("\n\n");
|
|
|
|
print_help(arg, &prefixes, opt);
|
|
printf("\n");
|
|
if (any_version(arg))
|
|
printf(" -V, --version\n");
|
|
print_bool_help(help_arg, NULL, NULL);
|
|
|
|
for (i = 0; arg[i].type != isl_arg_end; ++i) {
|
|
if (arg[i].type != isl_arg_footer)
|
|
continue;
|
|
wrap_msg(arg[i].help_msg, 0, 0);
|
|
printf("\n");
|
|
}
|
|
|
|
exit(0);
|
|
}
|
|
|
|
static int match_long_name(struct isl_arg *decl,
|
|
const char *start, const char *end)
|
|
{
|
|
do {
|
|
if (end - start == strlen(decl->long_name) &&
|
|
!strncmp(start, decl->long_name, end - start))
|
|
return 1;
|
|
} while ((++decl)->type == isl_arg_alias);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *skip_dash_dash(struct isl_arg *decl, const char *arg)
|
|
{
|
|
if (!strncmp(arg, "--", 2))
|
|
return arg + 2;
|
|
if ((decl->flags & ISL_ARG_SINGLE_DASH) && arg[0] == '-')
|
|
return arg + 1;
|
|
return NULL;
|
|
}
|
|
|
|
static const char *skip_name(struct isl_arg *decl, const char *arg,
|
|
struct isl_prefixes *prefixes, int need_argument, int *has_argument)
|
|
{
|
|
const char *equal;
|
|
const char *name;
|
|
const char *end;
|
|
|
|
if (arg[0] == '-' && arg[1] && arg[1] == decl->short_name) {
|
|
if (need_argument && !arg[2])
|
|
return NULL;
|
|
if (has_argument)
|
|
*has_argument = arg[2] != '\0';
|
|
return arg + 2;
|
|
}
|
|
if (!decl->long_name)
|
|
return NULL;
|
|
|
|
name = skip_dash_dash(decl, arg);
|
|
if (!name)
|
|
return NULL;
|
|
|
|
equal = strchr(name, '=');
|
|
if (need_argument && !equal)
|
|
return NULL;
|
|
|
|
if (has_argument)
|
|
*has_argument = !!equal;
|
|
end = equal ? equal : name + strlen(name);
|
|
|
|
name = skip_prefixes(name, prefixes, NULL);
|
|
|
|
if (!match_long_name(decl, name, end))
|
|
return NULL;
|
|
|
|
return equal ? equal + 1 : end;
|
|
}
|
|
|
|
static int parse_choice_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int i;
|
|
int has_argument;
|
|
const char *choice;
|
|
|
|
choice = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!choice)
|
|
return 0;
|
|
|
|
if (!has_argument && (!arg[1] || arg[1][0] == '-')) {
|
|
unsigned u = decl->u.choice.default_selected;
|
|
if (decl->offset != ISL_ARG_OFFSET_NONE)
|
|
*(unsigned *)(((char *)opt) + decl->offset) = u;
|
|
if (decl->u.choice.set)
|
|
decl->u.choice.set(opt, u);
|
|
|
|
return 1;
|
|
}
|
|
|
|
if (!has_argument)
|
|
choice = arg[1];
|
|
|
|
for (i = 0; decl->u.choice.choice[i].name; ++i) {
|
|
unsigned u;
|
|
|
|
if (strcmp(choice, decl->u.choice.choice[i].name))
|
|
continue;
|
|
|
|
u = decl->u.choice.choice[i].value;
|
|
if (decl->offset != ISL_ARG_OFFSET_NONE)
|
|
*(unsigned *)(((char *)opt) + decl->offset) = u;
|
|
if (decl->u.choice.set)
|
|
decl->u.choice.set(opt, u);
|
|
|
|
return has_argument ? 1 : 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_flag(struct isl_arg *decl, unsigned *val, const char *flag,
|
|
size_t len)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; decl->u.flags.flags[i].name; ++i) {
|
|
if (strncmp(flag, decl->u.flags.flags[i].name, len))
|
|
continue;
|
|
|
|
*val &= ~decl->u.flags.flags[i].mask;
|
|
*val |= decl->u.flags.flags[i].value;
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_flags_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *flags;
|
|
const char *comma;
|
|
unsigned val;
|
|
|
|
flags = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!flags)
|
|
return 0;
|
|
|
|
if (!has_argument && !arg[1])
|
|
return 0;
|
|
|
|
if (!has_argument)
|
|
flags = arg[1];
|
|
|
|
val = 0;
|
|
|
|
while ((comma = strchr(flags, ',')) != NULL) {
|
|
if (!set_flag(decl, &val, flags, comma - flags))
|
|
return 0;
|
|
flags = comma + 1;
|
|
}
|
|
if (!set_flag(decl, &val, flags, strlen(flags)))
|
|
return 0;
|
|
|
|
*(unsigned *)(((char *)opt) + decl->offset) = val;
|
|
|
|
return has_argument ? 1 : 2;
|
|
}
|
|
|
|
static int parse_bool_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
const char *name;
|
|
unsigned *p = (unsigned *)(((char *)opt) + decl->offset);
|
|
int next_prefix;
|
|
|
|
if (skip_name(decl, arg[0], prefixes, 0, NULL)) {
|
|
if ((decl->flags & ISL_ARG_BOOL_ARG) && arg[1]) {
|
|
char *endptr;
|
|
int val = strtol(arg[1], &endptr, 0);
|
|
if (*endptr == '\0' && (val == 0 || val == 1)) {
|
|
if (decl->offset != ISL_ARG_OFFSET_NONE)
|
|
*p = val;
|
|
if (decl->u.b.set)
|
|
decl->u.b.set(opt, val);
|
|
return 2;
|
|
}
|
|
}
|
|
if (decl->offset != ISL_ARG_OFFSET_NONE)
|
|
*p = 1;
|
|
if (decl->u.b.set)
|
|
decl->u.b.set(opt, 1);
|
|
|
|
return 1;
|
|
}
|
|
|
|
if (!decl->long_name)
|
|
return 0;
|
|
|
|
name = skip_dash_dash(decl, arg[0]);
|
|
if (!name)
|
|
return 0;
|
|
|
|
next_prefix = 0;
|
|
name = skip_prefixes(name, prefixes, &next_prefix);
|
|
|
|
if (strncmp(name, "no-", 3))
|
|
return 0;
|
|
name += 3;
|
|
|
|
name = skip_prefixes(name, prefixes, &next_prefix);
|
|
|
|
if (match_long_name(decl, name, name + strlen(name))) {
|
|
if (decl->offset != ISL_ARG_OFFSET_NONE)
|
|
*p = 0;
|
|
if (decl->u.b.set)
|
|
decl->u.b.set(opt, 0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_str_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *s;
|
|
char **p = (char **)(((char *)opt) + decl->offset);
|
|
|
|
s = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!s)
|
|
return 0;
|
|
|
|
if (has_argument) {
|
|
free(*p);
|
|
*p = strdup(s);
|
|
return 1;
|
|
}
|
|
|
|
if (arg[1]) {
|
|
free(*p);
|
|
*p = strdup(arg[1]);
|
|
return 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int isl_arg_str_list_append(struct isl_arg *decl, void *opt,
|
|
const char *s)
|
|
{
|
|
int *n = (int *)(((char *) opt) + decl->u.str_list.offset_n);
|
|
char **list = *(char ***)(((char *) opt) + decl->offset);
|
|
|
|
list = realloc(list, (*n + 1) * sizeof(char *));
|
|
if (!list)
|
|
return -1;
|
|
*(char ***)(((char *) opt) + decl->offset) = list;
|
|
list[*n] = strdup(s);
|
|
(*n)++;
|
|
return 0;
|
|
}
|
|
|
|
static int parse_str_list_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *s;
|
|
|
|
s = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!s)
|
|
return 0;
|
|
|
|
if (has_argument) {
|
|
isl_arg_str_list_append(decl, opt, s);
|
|
return 1;
|
|
}
|
|
|
|
if (arg[1]) {
|
|
isl_arg_str_list_append(decl, opt, arg[1]);
|
|
return 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_int_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *val;
|
|
char *endptr;
|
|
int *p = (int *)(((char *)opt) + decl->offset);
|
|
|
|
val = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!val)
|
|
return 0;
|
|
|
|
if (has_argument) {
|
|
*p = atoi(val);
|
|
return 1;
|
|
}
|
|
|
|
if (arg[1]) {
|
|
int i = strtol(arg[1], &endptr, 0);
|
|
if (*endptr == '\0') {
|
|
*p = i;
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_long_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *val;
|
|
char *endptr;
|
|
long *p = (long *)(((char *)opt) + decl->offset);
|
|
|
|
val = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!val)
|
|
return 0;
|
|
|
|
if (has_argument) {
|
|
long l = strtol(val, NULL, 0);
|
|
*p = l;
|
|
if (decl->u.l.set)
|
|
decl->u.l.set(opt, l);
|
|
return 1;
|
|
}
|
|
|
|
if (arg[1]) {
|
|
long l = strtol(arg[1], &endptr, 0);
|
|
if (*endptr == '\0') {
|
|
*p = l;
|
|
if (decl->u.l.set)
|
|
decl->u.l.set(opt, l);
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (decl->u.l.default_value != decl->u.l.default_selected) {
|
|
*p = decl->u.l.default_selected;
|
|
if (decl->u.l.set)
|
|
decl->u.l.set(opt, decl->u.l.default_selected);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_ulong_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int has_argument;
|
|
const char *val;
|
|
char *endptr;
|
|
unsigned long *p = (unsigned long *)(((char *)opt) + decl->offset);
|
|
|
|
val = skip_name(decl, arg[0], prefixes, 0, &has_argument);
|
|
if (!val)
|
|
return 0;
|
|
|
|
if (has_argument) {
|
|
*p = strtoul(val, NULL, 0);
|
|
return 1;
|
|
}
|
|
|
|
if (arg[1]) {
|
|
unsigned long ul = strtoul(arg[1], &endptr, 0);
|
|
if (*endptr == '\0') {
|
|
*p = ul;
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt);
|
|
|
|
static int parse_child_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
void *child;
|
|
int first, parsed;
|
|
|
|
if (decl->offset == ISL_ARG_OFFSET_NONE)
|
|
child = opt;
|
|
else
|
|
child = *(void **)(((char *)opt) + decl->offset);
|
|
|
|
first = add_prefix(prefixes, decl->long_name);
|
|
parsed = parse_option(decl->u.child.child->args, arg, prefixes, child);
|
|
drop_prefix(prefixes, first);
|
|
|
|
return parsed;
|
|
}
|
|
|
|
static int parse_option(struct isl_arg *decl, char **arg,
|
|
struct isl_prefixes *prefixes, void *opt)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; decl[i].type != isl_arg_end; ++i) {
|
|
int parsed = 0;
|
|
switch (decl[i].type) {
|
|
case isl_arg_choice:
|
|
parsed = parse_choice_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_flags:
|
|
parsed = parse_flags_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_int:
|
|
parsed = parse_int_option(&decl[i], arg, prefixes, opt);
|
|
break;
|
|
case isl_arg_long:
|
|
parsed = parse_long_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_ulong:
|
|
parsed = parse_ulong_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_bool:
|
|
parsed = parse_bool_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_str:
|
|
parsed = parse_str_option(&decl[i], arg, prefixes, opt);
|
|
break;
|
|
case isl_arg_str_list:
|
|
parsed = parse_str_list_option(&decl[i], arg, prefixes,
|
|
opt);
|
|
break;
|
|
case isl_arg_child:
|
|
parsed = parse_child_option(&decl[i], arg,
|
|
prefixes, opt);
|
|
break;
|
|
case isl_arg_alias:
|
|
case isl_arg_arg:
|
|
case isl_arg_footer:
|
|
case isl_arg_user:
|
|
case isl_arg_version:
|
|
case isl_arg_end:
|
|
break;
|
|
}
|
|
if (parsed)
|
|
return parsed;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void print_version(struct isl_arg *decl)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; decl[i].type != isl_arg_end; ++i) {
|
|
switch (decl[i].type) {
|
|
case isl_arg_version:
|
|
decl[i].u.version.print_version();
|
|
break;
|
|
case isl_arg_child:
|
|
print_version(decl[i].u.child.child->args);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void print_version_and_exit(struct isl_arg *decl)
|
|
{
|
|
print_version(decl);
|
|
|
|
exit(0);
|
|
}
|
|
|
|
static int drop_argument(int argc, char **argv, int drop, int n)
|
|
{
|
|
for (; drop + n < argc; ++drop)
|
|
argv[drop] = argv[drop + n];
|
|
|
|
return argc - n;
|
|
}
|
|
|
|
static int n_arg(struct isl_arg *arg)
|
|
{
|
|
int i;
|
|
int n_arg = 0;
|
|
|
|
for (i = 0; arg[i].type != isl_arg_end; ++i)
|
|
if (arg[i].type == isl_arg_arg)
|
|
n_arg++;
|
|
|
|
return n_arg;
|
|
}
|
|
|
|
static int next_arg(struct isl_arg *arg, int a)
|
|
{
|
|
for (++a; arg[a].type != isl_arg_end; ++a)
|
|
if (arg[a].type == isl_arg_arg)
|
|
return a;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* Unless ISL_ARG_SKIP_HELP is set, check if "arg" is
|
|
* equal to "--help" or "-h" and if so call print_help_and_exit.
|
|
*/
|
|
static void check_help(struct isl_args *args, char *arg, char *prog, void *opt,
|
|
unsigned flags)
|
|
{
|
|
if (ISL_FL_ISSET(flags, ISL_ARG_SKIP_HELP))
|
|
return;
|
|
|
|
if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0)
|
|
print_help_and_exit(args->args, prog, opt);
|
|
}
|
|
|
|
int isl_args_parse(struct isl_args *args, int argc, char **argv, void *opt,
|
|
unsigned flags)
|
|
{
|
|
int a = -1;
|
|
int skip = 0;
|
|
int i;
|
|
int n;
|
|
struct isl_prefixes prefixes = { 0 };
|
|
|
|
n = n_arg(args->args);
|
|
|
|
for (i = 1; i < argc; ++i) {
|
|
if ((strcmp(argv[i], "--version") == 0 ||
|
|
strcmp(argv[i], "-V") == 0) && any_version(args->args))
|
|
print_version_and_exit(args->args);
|
|
}
|
|
|
|
while (argc > 1 + skip) {
|
|
int parsed;
|
|
if (argv[1 + skip][0] != '-') {
|
|
a = next_arg(args->args, a);
|
|
if (a >= 0) {
|
|
char **p;
|
|
p = (char **)(((char *)opt)+args->args[a].offset);
|
|
free(*p);
|
|
*p = strdup(argv[1 + skip]);
|
|
argc = drop_argument(argc, argv, 1 + skip, 1);
|
|
--n;
|
|
} else if (ISL_FL_ISSET(flags, ISL_ARG_ALL)) {
|
|
fprintf(stderr, "%s: extra argument: %s\n",
|
|
prog_name(argv[0]), argv[1 + skip]);
|
|
exit(-1);
|
|
} else
|
|
++skip;
|
|
continue;
|
|
}
|
|
check_help(args, argv[1 + skip], argv[0], opt, flags);
|
|
parsed = parse_option(args->args, &argv[1 + skip],
|
|
&prefixes, opt);
|
|
if (parsed)
|
|
argc = drop_argument(argc, argv, 1 + skip, parsed);
|
|
else if (ISL_FL_ISSET(flags, ISL_ARG_ALL)) {
|
|
fprintf(stderr, "%s: unrecognized option: %s\n",
|
|
prog_name(argv[0]), argv[1 + skip]);
|
|
exit(-1);
|
|
} else
|
|
++skip;
|
|
}
|
|
|
|
if (n > 0) {
|
|
fprintf(stderr, "%s: expecting %d more argument(s)\n",
|
|
prog_name(argv[0]), n);
|
|
exit(-1);
|
|
}
|
|
|
|
return argc;
|
|
}
|