/*
* Copyright 2008-2009 Katholieke Universiteit Leuven
*
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege, K.U.Leuven, Departement
* Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
#include <stdlib.h>
#include <string.h>
-#include "isl_arg.h"
+#include <isl/arg.h>
+#include <isl/ctx.h>
+
+static struct isl_arg help_arg[] = {
+ISL_ARG_PHANTOM_BOOL('h', "help", NULL, "print this help, then exit")
+};
static void set_default_choice(struct isl_arg *arg, void *opt)
{
*(unsigned *)(((char *)opt) + arg->offset) = arg->u.choice.default_value;
}
+static void set_default_flags(struct isl_arg *arg, void *opt)
+{
+ *(unsigned *)(((char *)opt) + arg->offset) = arg->u.flags.default_value;
+}
+
static void set_default_bool(struct isl_arg *arg, void *opt)
{
+ if (arg->offset == (size_t) -1)
+ return;
*(unsigned *)(((char *)opt) + arg->offset) = arg->u.b.default_value;
}
static void set_default_child(struct isl_arg *arg, void *opt)
{
- void *child = calloc(1, arg->u.child.size);
+ void *child;
+
+ if (arg->offset == (size_t) -1)
+ child = opt;
+ else {
+ child = calloc(1, arg->u.child.child->options_size);
+ *(void **)(((char *)opt) + arg->offset) = child;
+ }
if (child)
- isl_arg_set_defaults(arg->u.child.child, child);
+ isl_args_set_defaults(arg->u.child.child, child);
+}
+
+static void set_default_user(struct isl_arg *arg, void *opt)
+{
+ arg->u.user.init(((char *)opt) + arg->offset);
+}
+
+static void set_default_int(struct isl_arg *arg, void *opt)
+{
+ *(int *)(((char *)opt) + arg->offset) = arg->u.i.default_value;
+}
- *(void **)(((char *)opt) + arg->offset) = child;
+static void set_default_long(struct isl_arg *arg, void *opt)
+{
+ *(long *)(((char *)opt) + arg->offset) = arg->u.l.default_value;
+}
+
+static void set_default_ulong(struct isl_arg *arg, void *opt)
+{
+ *(unsigned long *)(((char *)opt) + arg->offset) = arg->u.ul.default_value;
+}
+
+static void set_default_str(struct isl_arg *arg, void *opt)
+{
+ const char *str = NULL;
+ if (arg->u.str.default_value)
+ str = strdup(arg->u.str.default_value);
+ *(const char **)(((char *)opt) + arg->offset) = str;
}
-void isl_arg_set_defaults(struct isl_arg *arg, void *opt)
+static void set_default_str_list(struct isl_arg *arg, void *opt)
+{
+ *(const char ***)(((char *) opt) + arg->offset) = NULL;
+ *(int *)(((char *) opt) + arg->u.str_list.offset_n) = 0;
+}
+
+void isl_args_set_defaults(struct isl_args *args, void *opt)
{
int i;
- for (i = 0; arg[i].type != isl_arg_end; ++i) {
- switch (arg[i].type) {
+ for (i = 0; args->args[i].type != isl_arg_end; ++i) {
+ switch (args->args[i].type) {
case isl_arg_choice:
- set_default_choice(&arg[i], opt);
+ set_default_choice(&args->args[i], opt);
+ break;
+ case isl_arg_flags:
+ set_default_flags(&args->args[i], opt);
break;
case isl_arg_bool:
- set_default_bool(&arg[i], opt);
+ set_default_bool(&args->args[i], opt);
break;
case isl_arg_child:
- set_default_child(&arg[i], opt);
+ set_default_child(&args->args[i], opt);
+ break;
+ case isl_arg_user:
+ set_default_user(&args->args[i], opt);
+ break;
+ case isl_arg_int:
+ set_default_int(&args->args[i], opt);
+ break;
+ case isl_arg_long:
+ set_default_long(&args->args[i], opt);
+ break;
+ case isl_arg_ulong:
+ set_default_ulong(&args->args[i], opt);
+ break;
+ case isl_arg_arg:
+ case isl_arg_str:
+ set_default_str(&args->args[i], opt);
+ break;
+ case isl_arg_str_list:
+ set_default_str_list(&args->args[i], opt);
+ break;
+ case isl_arg_alias:
+ case isl_arg_footer:
+ case isl_arg_version:
+ case isl_arg_end:
break;
}
}
}
-static void print_arg_help(struct isl_arg *decl, const char *prefix)
+static void free_str_list(struct isl_arg *arg, void *opt)
{
- if (decl->short_name)
+ int i;
+ int n = *(int *)(((char *) opt) + arg->u.str_list.offset_n);
+ char **list = *(char ***)(((char *) opt) + arg->offset);
+
+ for (i = 0; i < n; ++i)
+ free(list[i]);
+ free(list);
+}
+
+static void free_args(struct isl_arg *arg, void *opt)
+{
+ int i;
+
+ for (i = 0; arg[i].type != isl_arg_end; ++i) {
+ switch (arg[i].type) {
+ case isl_arg_child:
+ if (arg[i].offset == (size_t) -1)
+ free_args(arg[i].u.child.child->args, opt);
+ else
+ isl_args_free(arg[i].u.child.child,
+ *(void **)(((char *)opt) + arg[i].offset));
+ break;
+ case isl_arg_arg:
+ case isl_arg_str:
+ free(*(char **)(((char *)opt) + arg[i].offset));
+ break;
+ case isl_arg_str_list:
+ free_str_list(&arg[i], opt);
+ break;
+ case isl_arg_user:
+ if (arg[i].u.user.clear)
+ arg[i].u.user.clear(((char *)opt) + arg[i].offset);
+ break;
+ case isl_arg_alias:
+ case isl_arg_bool:
+ case isl_arg_choice:
+ case isl_arg_flags:
+ case isl_arg_int:
+ case isl_arg_long:
+ case isl_arg_ulong:
+ case isl_arg_version:
+ case isl_arg_footer:
+ case isl_arg_end:
+ break;
+ }
+ }
+}
+
+void isl_args_free(struct isl_args *args, void *opt)
+{
+ if (!opt)
+ return;
+
+ free_args(args->args, opt);
+
+ free(opt);
+}
+
+static int print_arg_help(struct isl_arg *decl, const char *prefix, int no)
+{
+ int len = 0;
+
+ if (!decl->long_name) {
+ printf(" -%c", decl->short_name);
+ return 4;
+ }
+
+ if (decl->short_name) {
printf(" -%c, --", decl->short_name);
- else
+ len += 8;
+ } else if (decl->flags & ISL_ARG_SINGLE_DASH) {
+ printf(" -");
+ len += 3;
+ } else {
printf(" --");
- if (prefix)
+ len += 8;
+ }
+
+ if (prefix) {
printf("%s-", prefix);
+ len += strlen(prefix) + 1;
+ }
+ if (no) {
+ printf("no-");
+ len += 3;
+ }
printf("%s", decl->long_name);
+ len += strlen(decl->long_name);
+
+ while ((++decl)->type == isl_arg_alias) {
+ printf(", --");
+ len += 4;
+ if (no) {
+ printf("no-");
+ len += 3;
+ }
+ printf("%s", decl->long_name);
+ len += strlen(decl->long_name);
+ }
+
+ return len;
+}
+
+const void *isl_memrchr(const void *s, int c, size_t n)
+{
+ const char *p = s;
+ while (n-- > 0)
+ if (p[n] == c)
+ return p + n;
+ return NULL;
}
-static void print_choice_help(struct isl_arg *decl, const char *prefix)
+static int wrap_msg(const char *s, int indent, int pos)
+{
+ int len;
+ int wrap_len = 75 - indent;
+
+ if (pos + 1 >= indent)
+ printf("\n%*s", indent, "");
+ else
+ printf("%*s", indent - pos, "");
+
+ len = strlen(s);
+ while (len > wrap_len) {
+ const char *space = isl_memrchr(s, ' ', wrap_len);
+ int l;
+
+ if (!space)
+ space = strchr(s + wrap_len, ' ');
+ if (!space)
+ break;
+ l = space - s;
+ printf("%.*s", l, s);
+ s = space + 1;
+ len -= l + 1;
+ printf("\n%*s", indent, "");
+ }
+
+ printf("%s", s);
+ return len;
+}
+
+static int print_help_msg(struct isl_arg *decl, int pos)
+{
+ if (!decl->help_msg)
+ return pos;
+
+ return wrap_msg(decl->help_msg, 30, pos);
+}
+
+static void print_default(struct isl_arg *decl, const char *def, int pos)
+{
+ const char *default_prefix = "[default: ";
+ const char *default_suffix = "]";
+ int len;
+
+ len = strlen(default_prefix) + strlen(def) + strlen(default_suffix);
+
+ if (!decl->help_msg) {
+ if (pos >= 29)
+ printf("\n%30s", "");
+ else
+ printf("%*s", 30 - pos, "");
+ pos = 0;
+ } else {
+ if (pos + len >= 48)
+ printf("\n%30s", "");
+ else
+ printf(" ");
+ }
+ printf("%s%s%s", default_prefix, def, default_suffix);
+}
+
+static void print_default_choice(struct isl_arg *decl, void *opt, int pos)
{
int i;
+ const char *s = "none";
+ unsigned *p;
+
+ p = (unsigned *)(((char *) opt) + decl->offset);
+ for (i = 0; decl->u.choice.choice[i].name; ++i)
+ if (decl->u.choice.choice[i].value == *p) {
+ s = decl->u.choice.choice[i].name;
+ break;
+ }
+
+ print_default(decl, s, pos);
+}
- print_arg_help(decl, prefix);
+static void print_choice_help(struct isl_arg *decl, const char *prefix,
+ void *opt)
+{
+ int i;
+ int pos;
+
+ pos = print_arg_help(decl, prefix, 0);
printf("=");
+ pos++;
for (i = 0; decl->u.choice.choice[i].name; ++i) {
- if (i)
+ if (i) {
printf("|");
+ pos++;
+ }
printf("%s", decl->u.choice.choice[i].name);
+ pos += strlen(decl->u.choice.choice[i].name);
+ }
+
+ pos = print_help_msg(decl, pos);
+ print_default_choice(decl, opt, pos);
+
+ printf("\n");
+}
+
+static void print_default_flags(struct isl_arg *decl, void *opt, int pos)
+{
+ int i, first;
+ const char *default_prefix = "[default: ";
+ const char *default_suffix = "]";
+ int len = strlen(default_prefix) + strlen(default_suffix);
+ unsigned *p;
+
+ p = (unsigned *)(((char *) opt) + decl->offset);
+ for (i = 0; decl->u.flags.flags[i].name; ++i)
+ if ((*p & decl->u.flags.flags[i].mask) ==
+ decl->u.flags.flags[i].value)
+ len += strlen(decl->u.flags.flags[i].name);
+
+ if (!decl->help_msg) {
+ if (pos >= 29)
+ printf("\n%30s", "");
+ else
+ printf("%*s", 30 - pos, "");
+ pos = 0;
+ } else {
+ if (pos + len >= 48)
+ printf("\n%30s", "");
+ else
+ printf(" ");
+ }
+ printf("%s", default_prefix);
+
+ for (first = 1, i = 0; decl->u.flags.flags[i].name; ++i)
+ if ((*p & decl->u.flags.flags[i].mask) ==
+ decl->u.flags.flags[i].value) {
+ if (!first)
+ printf(",");
+ printf("%s", decl->u.flags.flags[i].name);
+ first = 0;
+ }
+
+ printf("%s", default_suffix);
+}
+
+static void print_flags_help(struct isl_arg *decl, const char *prefix,
+ void *opt)
+{
+ int i, j;
+ int pos;
+
+ pos = print_arg_help(decl, prefix, 0);
+ printf("=");
+ pos++;
+
+ for (i = 0; decl->u.flags.flags[i].name; ++i) {
+ if (i) {
+ printf(",");
+ pos++;
+ }
+ for (j = i;
+ decl->u.flags.flags[j].mask == decl->u.flags.flags[i].mask;
+ ++j) {
+ if (j != i) {
+ printf("|");
+ pos++;
+ }
+ printf("%s", decl->u.flags.flags[j].name);
+ pos += strlen(decl->u.flags.flags[j].name);
+ }
+ i = j - 1;
}
+ pos = print_help_msg(decl, pos);
+ print_default_flags(decl, opt, pos);
+
printf("\n");
}
-static void print_bool_help(struct isl_arg *decl, const char *prefix)
+static void print_bool_help(struct isl_arg *decl, const char *prefix, void *opt)
{
- print_arg_help(decl, prefix);
+ int pos;
+ unsigned *p = opt ? (unsigned *)(((char *) opt) + decl->offset) : NULL;
+ int no = p ? *p == 1 : 0;
+ pos = print_arg_help(decl, prefix, no);
+ pos = print_help_msg(decl, pos);
+ if (decl->offset != (size_t) -1)
+ print_default(decl, no ? "yes" : "no", pos);
printf("\n");
}
-static void print_help(struct isl_arg *arg, const char *prefix)
+static int print_argument_name(struct isl_arg *decl, const char *name, int pos)
+{
+ printf("%c<%s>", decl->long_name ? '=' : ' ', name);
+ return pos + 3 + strlen(name);
+}
+
+static void print_int_help(struct isl_arg *decl, const char *prefix, void *opt)
+{
+ int pos;
+ char val[20];
+ int *p = (int *)(((char *) opt) + decl->offset);
+ pos = print_arg_help(decl, prefix, 0);
+ pos = print_argument_name(decl, decl->argument_name, pos);
+ pos = print_help_msg(decl, pos);
+ snprintf(val, sizeof(val), "%d", *p);
+ print_default(decl, val, pos);
+ printf("\n");
+}
+
+static void print_long_help(struct isl_arg *decl, const char *prefix, void *opt)
+{
+ int pos;
+ long *p = (long *)(((char *) opt) + decl->offset);
+ pos = print_arg_help(decl, prefix, 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, const char *prefix)
+{
+ int pos;
+ pos = print_arg_help(decl, prefix, 0);
+ printf("=ulong");
+ pos += 6;
+ print_help_msg(decl, pos);
+ printf("\n");
+}
+
+static void print_str_help(struct isl_arg *decl, const char *prefix, 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, prefix, 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, const char *prefix)
+{
+ int pos;
+ const char *a = decl->argument_name ? decl->argument_name : "string";
+ pos = print_arg_help(decl, prefix, 0);
+ pos = print_argument_name(decl, a, pos);
+ pos = print_help_msg(decl, pos);
+ printf("\n");
+}
+
+static void print_help(struct isl_arg *arg, const char *prefix, 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], prefix, opt);
+ any = 1;
+ break;
case isl_arg_choice:
- print_choice_help(&arg[i], prefix);
+ print_choice_help(&arg[i], prefix, opt);
+ any = 1;
break;
case isl_arg_bool:
- print_bool_help(&arg[i], prefix);
+ print_bool_help(&arg[i], prefix, opt);
+ any = 1;
+ break;
+ case isl_arg_int:
+ print_int_help(&arg[i], prefix, opt);
+ any = 1;
+ break;
+ case isl_arg_long:
+ print_long_help(&arg[i], prefix, opt);
+ any = 1;
+ break;
+ case isl_arg_ulong:
+ print_ulong_help(&arg[i], prefix);
+ any = 1;
+ break;
+ case isl_arg_str:
+ print_str_help(&arg[i], prefix, opt);
+ any = 1;
+ break;
+ case isl_arg_str_list:
+ print_str_list_help(&arg[i], prefix);
+ 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;
+
if (arg[i].type != isl_arg_child)
continue;
+ if (arg[i].flags & ISL_ARG_HIDDEN)
+ continue;
- printf("\n");
- print_help(arg[i].u.child.child, arg[i].long_name);
+ if (any)
+ printf("\n");
+ if (arg[i].help_msg)
+ printf(" %s\n", arg[i].help_msg);
+ if (arg[i].offset == (size_t) -1)
+ child = opt;
+ else
+ child = *(void **)(((char *) opt) + arg[i].offset);
+ print_help(arg[i].u.child.child->args, arg[i].long_name, child);
+ any = 1;
}
}
-static void print_help_and_exit(struct isl_arg *arg, const char *prog)
+static const char *prog_name(const char *prog)
{
const char *slash;
slash = strrchr(prog, '/');
if (slash)
- printf("Usage: %s [OPTION...]\n\n", slash + 1);
+ prog = slash + 1;
+ if (strncmp(prog, "lt-", 3) == 0)
+ prog += 3;
- print_help(arg, NULL);
+ return prog;
+}
- exit(0);
+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 int parse_choice_option(struct isl_arg *decl, const char *arg,
- const char *prefix, void *opt)
+static void print_help_and_exit(struct isl_arg *arg, const char *prog,
+ void *opt)
{
int i;
+
+ 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, NULL, 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,
+ const char *prefix, int need_argument, int *has_argument)
+{
const char *equal;
const char *name;
+ const char *end;
- if (strncmp(arg, "--", 2))
- return 0;
+ 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;
- name = arg + 2;
equal = strchr(name, '=');
- if (!equal)
- return 0;
+ if (need_argument && !equal)
+ return NULL;
+
+ if (has_argument)
+ *has_argument = !!equal;
+ end = equal ? equal : name + strlen(name);
if (prefix) {
size_t prefix_len = strlen(prefix);
name += prefix_len + 1;
}
- if (strncmp(name, decl->long_name, equal - name))
+ 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,
+ const char *prefix, void *opt)
+{
+ int i;
+ int has_argument;
+ const char *choice;
+
+ choice = skip_name(decl, arg[0], prefix, 0, &has_argument);
+ if (!choice)
return 0;
+ if (!has_argument && (!arg[1] || arg[1][0] == '-')) {
+ unsigned u = decl->u.choice.default_selected;
+ if (decl->u.choice.set)
+ decl->u.choice.set(opt, u);
+ else
+ *(unsigned *)(((char *)opt) + decl->offset) = u;
+
+ return 1;
+ }
+
+ if (!has_argument)
+ choice = arg[1];
+
for (i = 0; decl->u.choice.choice[i].name; ++i) {
- if (strcmp(equal + 1, decl->u.choice.choice[i].name))
+ unsigned u;
+
+ if (strcmp(choice, decl->u.choice.choice[i].name))
continue;
- *(unsigned *)(((char *)opt) + decl->offset) =
- decl->u.choice.choice[i].value;
+ u = decl->u.choice.choice[i].value;
+ if (decl->u.choice.set)
+ decl->u.choice.set(opt, u);
+ else
+ *(unsigned *)(((char *)opt) + decl->offset) = u;
- return 1;
+ return has_argument ? 1 : 2;
}
return 0;
}
-static int parse_bool_option(struct isl_arg *decl, const char *arg, void *opt)
+static int set_flag(struct isl_arg *decl, unsigned *val, const char *flag,
+ size_t len)
{
int i;
- if ((arg[0] == '-' && arg[1] == decl->short_name && arg[2] == '\0') ||
- (strncmp(arg, "--", 2) == 0 &&
- strcmp(arg + 2, decl->long_name) == 0)) {
- *(unsigned *)(((char *)opt) + decl->offset) = 1;
+ 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_option(struct isl_arg *decl, const char *arg,
+static int parse_flags_option(struct isl_arg *decl, char **arg,
+ const char *prefix, void *opt)
+{
+ int has_argument;
+ const char *flags;
+ const char *comma;
+ unsigned val;
+
+ flags = skip_name(decl, arg[0], prefix, 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,
+ const char *prefix, void *opt)
+{
+ const char *name;
+ unsigned *p = (unsigned *)(((char *)opt) + decl->offset);
+
+ if (skip_name(decl, arg[0], prefix, 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->u.b.set)
+ decl->u.b.set(opt, val);
+ else if (decl->offset != (size_t) -1)
+ *p = val;
+ return 2;
+ }
+ }
+ if (decl->u.b.set)
+ decl->u.b.set(opt, 1);
+ else if (decl->offset != (size_t) -1)
+ *p = 1;
+
+ return 1;
+ }
+
+ if (!decl->long_name)
+ return 0;
+
+ name = skip_dash_dash(decl, arg[0]);
+ if (!name)
+ return 0;
+
+ if (prefix) {
+ size_t prefix_len = strlen(prefix);
+ if (strncmp(name, prefix, prefix_len) == 0 &&
+ name[prefix_len] == '-') {
+ name += prefix_len + 1;
+ prefix = NULL;
+ }
+ }
+
+ if (strncmp(name, "no-", 3))
+ return 0;
+ name += 3;
+
+ if (prefix) {
+ size_t prefix_len = strlen(prefix);
+ if (strncmp(name, prefix, prefix_len) == 0 &&
+ name[prefix_len] == '-')
+ name += prefix_len + 1;
+ }
+
+ if (match_long_name(decl, name, name + strlen(name))) {
+ if (decl->u.b.set)
+ decl->u.b.set(opt, 0);
+ else if (decl->offset != (size_t) -1)
+ *p = 0;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static int parse_str_option(struct isl_arg *decl, char **arg,
+ const char *prefix, void *opt)
+{
+ int has_argument;
+ const char *s;
+ char **p = (char **)(((char *)opt) + decl->offset);
+
+ s = skip_name(decl, arg[0], prefix, 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,
+ const char *prefix, void *opt)
+{
+ int has_argument;
+ const char *s;
+
+ s = skip_name(decl, arg[0], prefix, 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,
+ const char *prefix, void *opt)
+{
+ int has_argument;
+ const char *val;
+ char *endptr;
+ int *p = (int *)(((char *)opt) + decl->offset);
+
+ val = skip_name(decl, arg[0], prefix, 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,
+ const char *prefix, void *opt)
+{
+ int has_argument;
+ const char *val;
+ char *endptr;
+ long *p = (long *)(((char *)opt) + decl->offset);
+
+ val = skip_name(decl, arg[0], prefix, 0, &has_argument);
+ if (!val)
+ return 0;
+
+ if (has_argument) {
+ long l = strtol(val, NULL, 0);
+ if (decl->u.l.set)
+ decl->u.l.set(opt, l);
+ else
+ *p = l;
+ return 1;
+ }
+
+ if (arg[1]) {
+ long l = strtol(arg[1], &endptr, 0);
+ if (*endptr == '\0') {
+ if (decl->u.l.set)
+ decl->u.l.set(opt, l);
+ else
+ *p = l;
+ return 2;
+ }
+ }
+
+ if (decl->u.l.default_value != decl->u.l.default_selected) {
+ if (decl->u.l.set)
+ decl->u.l.set(opt, decl->u.l.default_selected);
+ else
+ *p = decl->u.l.default_selected;
+ return 1;
+ }
+
+ return 0;
+}
+
+static int parse_ulong_option(struct isl_arg *decl, char **arg,
+ const char *prefix, 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], prefix, 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,
const char *prefix, void *opt);
-static int parse_child_option(struct isl_arg *decl, const char *arg, void *opt)
+static int parse_child_option(struct isl_arg *decl, char **arg,
+ const char *prefix, void *opt)
{
- return parse_option(decl->u.child.child, arg, decl->long_name,
- *(void **)(((char *)opt) + decl->offset));
+ void *child;
+
+ if (decl->offset == (size_t) -1)
+ child = opt;
+ else {
+ child = *(void **)(((char *)opt) + decl->offset);
+ prefix = decl->long_name;
+ }
+ return parse_option(decl->u.child.child->args, arg, prefix, child);
}
-static int parse_option(struct isl_arg *decl, const char *arg,
+static int parse_option(struct isl_arg *decl, char **arg,
const char *prefix, 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:
- if (parse_choice_option(&decl[i], arg, prefix, opt))
- return 1;
+ parsed = parse_choice_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_flags:
+ parsed = parse_flags_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_int:
+ parsed = parse_int_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_long:
+ parsed = parse_long_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_ulong:
+ parsed = parse_ulong_option(&decl[i], arg, prefix, opt);
break;
case isl_arg_bool:
- if (parse_bool_option(&decl[i], arg, opt))
- return 1;
+ parsed = parse_bool_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_str:
+ parsed = parse_str_option(&decl[i], arg, prefix, opt);
+ break;
+ case isl_arg_str_list:
+ parsed = parse_str_list_option(&decl[i], arg, prefix,
+ opt);
break;
case isl_arg_child:
- if (parse_child_option(&decl[i], arg, opt))
- return 1;
+ parsed = parse_child_option(&decl[i], arg, prefix, 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 int drop_argument(int argc, char **argv, int drop)
+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)
{
- for (; drop < argc; ++drop)
- argv[drop] = argv[drop + 1];
+ print_version(decl);
- return argc - 1;
+ exit(0);
}
-int isl_arg_parse(struct isl_arg *arg, int argc, char **argv, void *opt)
+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 skip = 0;
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 any of the arguments is
+ * equal to "--help" and if so call print_help_and_exit.
+ */
+static void check_help(struct isl_args *args, int argc, char **argv, void *opt,
+ unsigned flags)
+{
+ int i;
+
+ if (ISL_FL_ISSET(flags, ISL_ARG_SKIP_HELP))
+ return;
for (i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--help") == 0)
- print_help_and_exit(arg, argv[0]);
+ print_help_and_exit(args->args, argv[0], 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;
+
+ n = n_arg(args->args);
+
+ check_help(args, argc, argv, opt, flags);
+
+ 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) {
- if (parse_option(arg, argv[1 + skip], NULL, opt))
- argc = drop_argument(argc, argv, 1 + skip);
- else {
- fprintf(stderr, "unrecognized option: %s\n",
- argv[1 + skip]);
- exit(-1);
+ 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;
}
+ parsed = parse_option(args->args, &argv[1 + skip], NULL, 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;
projects / platform / upstream / isl.git / blobdiff