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authorStefan Reinauer <stefan.reinauer@coreboot.org>2015-06-11 14:57:36 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2015-06-30 18:55:32 +0200
commited56499ab145dc3dec1ee65693fe4b5d2f4a973f (patch)
tree84029598955d7ccb68ef365a7b0ccbda0d516567 /payloads/libpayload/util/kconfig/symbol.c
parent1b4d39428eac80bc76713b1f21a2c85e8900c1b8 (diff)
downloadcoreboot-ed56499ab145dc3dec1ee65693fe4b5d2f4a973f.tar.xz
libpayload: Drop duplicate copy of Kconfig
It's perfectly fine to have one single copy of kconfig in the tree. Change-Id: Icfe32f0249dfc1c223009d6e7136462f8f8a7248 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/10521 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'payloads/libpayload/util/kconfig/symbol.c')
-rw-r--r--payloads/libpayload/util/kconfig/symbol.c927
1 files changed, 0 insertions, 927 deletions
diff --git a/payloads/libpayload/util/kconfig/symbol.c b/payloads/libpayload/util/kconfig/symbol.c
deleted file mode 100644
index 2ea30089ca..0000000000
--- a/payloads/libpayload/util/kconfig/symbol.c
+++ /dev/null
@@ -1,927 +0,0 @@
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-#include <regex.h>
-#ifndef WIN32
-#include <sys/utsname.h>
-#endif
-
-#define LKC_DIRECT_LINK
-#include "lkc.h"
-
-struct symbol symbol_yes = {
- .name = "y",
- .curr = { "y", yes },
- .flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_mod = {
- .name = "m",
- .curr = { "m", mod },
- .flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_no = {
- .name = "n",
- .curr = { "n", no },
- .flags = SYMBOL_CONST|SYMBOL_VALID,
-}, symbol_empty = {
- .name = "",
- .curr = { "", no },
- .flags = SYMBOL_VALID,
-};
-
-struct symbol *sym_defconfig_list;
-struct symbol *modules_sym;
-tristate modules_val;
-
-struct expr *sym_env_list;
-
-void sym_add_default(struct symbol *sym, const char *def)
-{
- struct property *prop = prop_alloc(P_DEFAULT, sym);
-
- prop->expr = expr_alloc_symbol(sym_lookup(def, 1));
-}
-
-void sym_init(void)
-{
- struct symbol *sym;
-#ifndef WIN32
- struct utsname uts;
-#endif
- static bool inited = false;
-
- if (inited)
- return;
- inited = true;
-
-#ifndef WIN32
- uname(&uts);
-#endif
-
- sym = sym_lookup("UNAME_RELEASE", 0);
- sym->type = S_STRING;
- sym->flags |= SYMBOL_AUTO;
-#ifndef WIN32
- sym_add_default(sym, uts.release);
-#else
- sym_add_default(sym, "");
-#endif
-}
-
-enum symbol_type sym_get_type(struct symbol *sym)
-{
- enum symbol_type type = sym->type;
-
- if (type == S_TRISTATE) {
- if (sym_is_choice_value(sym) && sym->visible == yes)
- type = S_BOOLEAN;
- else if (modules_val == no)
- type = S_BOOLEAN;
- }
- return type;
-}
-
-const char *sym_type_name(enum symbol_type type)
-{
- switch (type) {
- case S_BOOLEAN:
- return "boolean";
- case S_TRISTATE:
- return "tristate";
- case S_INT:
- return "integer";
- case S_HEX:
- return "hex";
- case S_STRING:
- return "string";
- case S_UNKNOWN:
- return "unknown";
- case S_OTHER:
- break;
- }
- return "???";
-}
-
-struct property *sym_get_choice_prop(struct symbol *sym)
-{
- struct property *prop;
-
- for_all_choices(sym, prop)
- return prop;
- return NULL;
-}
-
-struct property *sym_get_env_prop(struct symbol *sym)
-{
- struct property *prop;
-
- for_all_properties(sym, prop, P_ENV)
- return prop;
- return NULL;
-}
-
-struct property *sym_get_default_prop(struct symbol *sym)
-{
- struct property *prop;
-
- for_all_defaults(sym, prop) {
- prop->visible.tri = expr_calc_value(prop->visible.expr);
- if (prop->visible.tri != no)
- return prop;
- }
- return NULL;
-}
-
-struct property *sym_get_range_prop(struct symbol *sym)
-{
- struct property *prop;
-
- for_all_properties(sym, prop, P_RANGE) {
- prop->visible.tri = expr_calc_value(prop->visible.expr);
- if (prop->visible.tri != no)
- return prop;
- }
- return NULL;
-}
-
-static int sym_get_range_val(struct symbol *sym, int base)
-{
- sym_calc_value(sym);
- switch (sym->type) {
- case S_INT:
- base = 10;
- break;
- case S_HEX:
- base = 16;
- break;
- default:
- break;
- }
- return strtol(sym->curr.val, NULL, base);
-}
-
-static void sym_validate_range(struct symbol *sym)
-{
- struct property *prop;
- int base, val, val2;
- char str[64];
-
- switch (sym->type) {
- case S_INT:
- base = 10;
- break;
- case S_HEX:
- base = 16;
- break;
- default:
- return;
- }
- prop = sym_get_range_prop(sym);
- if (!prop)
- return;
- val = strtol(sym->curr.val, NULL, base);
- val2 = sym_get_range_val(prop->expr->left.sym, base);
- if (val >= val2) {
- val2 = sym_get_range_val(prop->expr->right.sym, base);
- if (val <= val2)
- return;
- }
- if (sym->type == S_INT)
- sprintf(str, "%d", val2);
- else
- sprintf(str, "0x%x", val2);
- sym->curr.val = strdup(str);
-}
-
-static void sym_calc_visibility(struct symbol *sym)
-{
- struct property *prop;
- tristate tri;
-
- /* any prompt visible? */
- tri = no;
- for_all_prompts(sym, prop) {
- prop->visible.tri = expr_calc_value(prop->visible.expr);
- tri = EXPR_OR(tri, prop->visible.tri);
- }
- if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
- tri = yes;
- if (sym->visible != tri) {
- sym->visible = tri;
- sym_set_changed(sym);
- }
- if (sym_is_choice_value(sym))
- return;
- tri = no;
- if (sym->rev_dep.expr)
- tri = expr_calc_value(sym->rev_dep.expr);
- if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
- tri = yes;
- if (sym->rev_dep.tri != tri) {
- sym->rev_dep.tri = tri;
- sym_set_changed(sym);
- }
-}
-
-static struct symbol *sym_calc_choice(struct symbol *sym)
-{
- struct symbol *def_sym;
- struct property *prop;
- struct expr *e;
-
- /* is the user choice visible? */
- def_sym = sym->def[S_DEF_USER].val;
- if (def_sym) {
- sym_calc_visibility(def_sym);
- if (def_sym->visible != no)
- return def_sym;
- }
-
- /* any of the defaults visible? */
- for_all_defaults(sym, prop) {
- prop->visible.tri = expr_calc_value(prop->visible.expr);
- if (prop->visible.tri == no)
- continue;
- def_sym = prop_get_symbol(prop);
- sym_calc_visibility(def_sym);
- if (def_sym->visible != no)
- return def_sym;
- }
-
- /* just get the first visible value */
- prop = sym_get_choice_prop(sym);
- expr_list_for_each_sym(prop->expr, e, def_sym) {
- sym_calc_visibility(def_sym);
- if (def_sym->visible != no)
- return def_sym;
- }
-
- /* no choice? reset tristate value */
- sym->curr.tri = no;
- return NULL;
-}
-
-void sym_calc_value(struct symbol *sym)
-{
- struct symbol_value newval, oldval;
- struct property *prop;
- struct expr *e;
-
- if (!sym)
- return;
-
- if (sym->flags & SYMBOL_VALID)
- return;
- sym->flags |= SYMBOL_VALID;
-
- oldval = sym->curr;
-
- switch (sym->type) {
- case S_INT:
- case S_HEX:
- case S_STRING:
- newval = symbol_empty.curr;
- break;
- case S_BOOLEAN:
- case S_TRISTATE:
- newval = symbol_no.curr;
- break;
- default:
- sym->curr.val = sym->name;
- sym->curr.tri = no;
- return;
- }
- if (!sym_is_choice_value(sym))
- sym->flags &= ~SYMBOL_WRITE;
-
- sym_calc_visibility(sym);
-
- /* set default if recursively called */
- sym->curr = newval;
-
- switch (sym_get_type(sym)) {
- case S_BOOLEAN:
- case S_TRISTATE:
- if (sym_is_choice_value(sym) && sym->visible == yes) {
- prop = sym_get_choice_prop(sym);
- newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
- } else {
- if (sym->visible != no) {
- /* if the symbol is visible use the user value
- * if available, otherwise try the default value
- */
- sym->flags |= SYMBOL_WRITE;
- if (sym_has_value(sym)) {
- newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
- sym->visible);
- goto calc_newval;
- }
- }
- if (sym->rev_dep.tri != no)
- sym->flags |= SYMBOL_WRITE;
- if (!sym_is_choice(sym)) {
- prop = sym_get_default_prop(sym);
- if (prop) {
- sym->flags |= SYMBOL_WRITE;
- newval.tri = EXPR_AND(expr_calc_value(prop->expr),
- prop->visible.tri);
- }
- }
- calc_newval:
- newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
- }
- if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
- newval.tri = yes;
- break;
- case S_STRING:
- case S_HEX:
- case S_INT:
- if (sym->visible != no) {
- sym->flags |= SYMBOL_WRITE;
- if (sym_has_value(sym)) {
- newval.val = sym->def[S_DEF_USER].val;
- break;
- }
- }
- prop = sym_get_default_prop(sym);
- if (prop) {
- struct symbol *ds = prop_get_symbol(prop);
- if (ds) {
- sym->flags |= SYMBOL_WRITE;
- sym_calc_value(ds);
- newval.val = ds->curr.val;
- }
- }
- break;
- default:
- ;
- }
-
- if (sym->flags & SYMBOL_AUTO)
- sym->flags &= ~SYMBOL_WRITE;
-
- sym->curr = newval;
- if (sym_is_choice(sym) && newval.tri == yes)
- sym->curr.val = sym_calc_choice(sym);
- sym_validate_range(sym);
-
- if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
- sym_set_changed(sym);
- if (modules_sym == sym) {
- sym_set_all_changed();
- modules_val = modules_sym->curr.tri;
- }
- }
-
- if (sym_is_choice(sym)) {
- struct symbol *choice_sym;
- int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
-
- prop = sym_get_choice_prop(sym);
- expr_list_for_each_sym(prop->expr, e, choice_sym) {
- choice_sym->flags |= flags;
- if (flags & SYMBOL_CHANGED)
- sym_set_changed(choice_sym);
- }
- }
-}
-
-void sym_clear_all_valid(void)
-{
- struct symbol *sym;
- int i;
-
- for_all_symbols(i, sym)
- sym->flags &= ~SYMBOL_VALID;
- sym_add_change_count(1);
- if (modules_sym)
- sym_calc_value(modules_sym);
-}
-
-void sym_set_changed(struct symbol *sym)
-{
- struct property *prop;
-
- sym->flags |= SYMBOL_CHANGED;
- for (prop = sym->prop; prop; prop = prop->next) {
- if (prop->menu)
- prop->menu->flags |= MENU_CHANGED;
- }
-}
-
-void sym_set_all_changed(void)
-{
- struct symbol *sym;
- int i;
-
- for_all_symbols(i, sym)
- sym_set_changed(sym);
-}
-
-bool sym_tristate_within_range(struct symbol *sym, tristate val)
-{
- int type = sym_get_type(sym);
-
- if (sym->visible == no)
- return false;
-
- if (type != S_BOOLEAN && type != S_TRISTATE)
- return false;
-
- if (type == S_BOOLEAN && val == mod)
- return false;
- if (sym->visible <= sym->rev_dep.tri)
- return false;
- if (sym_is_choice_value(sym) && sym->visible == yes)
- return val == yes;
- return val >= sym->rev_dep.tri && val <= sym->visible;
-}
-
-bool sym_set_tristate_value(struct symbol *sym, tristate val)
-{
- tristate oldval = sym_get_tristate_value(sym);
-
- if (oldval != val && !sym_tristate_within_range(sym, val))
- return false;
-
- if (!(sym->flags & SYMBOL_DEF_USER)) {
- sym->flags |= SYMBOL_DEF_USER;
- sym_set_changed(sym);
- }
- /*
- * setting a choice value also resets the new flag of the choice
- * symbol and all other choice values.
- */
- if (sym_is_choice_value(sym) && val == yes) {
- struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
- struct property *prop;
- struct expr *e;
-
- cs->def[S_DEF_USER].val = sym;
- cs->flags |= SYMBOL_DEF_USER;
- prop = sym_get_choice_prop(cs);
- for (e = prop->expr; e; e = e->left.expr) {
- if (e->right.sym->visible != no)
- e->right.sym->flags |= SYMBOL_DEF_USER;
- }
- }
-
- sym->def[S_DEF_USER].tri = val;
- if (oldval != val)
- sym_clear_all_valid();
-
- return true;
-}
-
-tristate sym_toggle_tristate_value(struct symbol *sym)
-{
- tristate oldval, newval;
-
- oldval = newval = sym_get_tristate_value(sym);
- do {
- switch (newval) {
- case no:
- newval = mod;
- break;
- case mod:
- newval = yes;
- break;
- case yes:
- newval = no;
- break;
- }
- if (sym_set_tristate_value(sym, newval))
- break;
- } while (oldval != newval);
- return newval;
-}
-
-bool sym_string_valid(struct symbol *sym, const char *str)
-{
- signed char ch;
-
- switch (sym->type) {
- case S_STRING:
- return true;
- case S_INT:
- ch = *str++;
- if (ch == '-')
- ch = *str++;
- if (!isdigit(ch))
- return false;
- if (ch == '0' && *str != 0)
- return false;
- while ((ch = *str++)) {
- if (!isdigit(ch))
- return false;
- }
- return true;
- case S_HEX:
- if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
- str += 2;
- ch = *str++;
- do {
- if (!isxdigit(ch))
- return false;
- } while ((ch = *str++));
- return true;
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (str[0]) {
- case 'y': case 'Y':
- case 'm': case 'M':
- case 'n': case 'N':
- return true;
- }
- return false;
- default:
- return false;
- }
-}
-
-bool sym_string_within_range(struct symbol *sym, const char *str)
-{
- struct property *prop;
- int val;
-
- switch (sym->type) {
- case S_STRING:
- return sym_string_valid(sym, str);
- case S_INT:
- if (!sym_string_valid(sym, str))
- return false;
- prop = sym_get_range_prop(sym);
- if (!prop)
- return true;
- val = strtol(str, NULL, 10);
- return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
- val <= sym_get_range_val(prop->expr->right.sym, 10);
- case S_HEX:
- if (!sym_string_valid(sym, str))
- return false;
- prop = sym_get_range_prop(sym);
- if (!prop)
- return true;
- val = strtol(str, NULL, 16);
- return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
- val <= sym_get_range_val(prop->expr->right.sym, 16);
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (str[0]) {
- case 'y': case 'Y':
- return sym_tristate_within_range(sym, yes);
- case 'm': case 'M':
- return sym_tristate_within_range(sym, mod);
- case 'n': case 'N':
- return sym_tristate_within_range(sym, no);
- }
- return false;
- default:
- return false;
- }
-}
-
-bool sym_set_string_value(struct symbol *sym, const char *newval)
-{
- const char *oldval;
- char *val;
- int size;
-
- switch (sym->type) {
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (newval[0]) {
- case 'y': case 'Y':
- return sym_set_tristate_value(sym, yes);
- case 'm': case 'M':
- return sym_set_tristate_value(sym, mod);
- case 'n': case 'N':
- return sym_set_tristate_value(sym, no);
- }
- return false;
- default:
- ;
- }
-
- if (!sym_string_within_range(sym, newval))
- return false;
-
- if (!(sym->flags & SYMBOL_DEF_USER)) {
- sym->flags |= SYMBOL_DEF_USER;
- sym_set_changed(sym);
- }
-
- oldval = sym->def[S_DEF_USER].val;
- size = strlen(newval) + 1;
- if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
- size += 2;
- sym->def[S_DEF_USER].val = val = malloc(size);
- *val++ = '0';
- *val++ = 'x';
- } else if (!oldval || strcmp(oldval, newval))
- sym->def[S_DEF_USER].val = val = malloc(size);
- else
- return true;
-
- strcpy(val, newval);
- free((void *)oldval);
- sym_clear_all_valid();
-
- return true;
-}
-
-const char *sym_get_string_value(struct symbol *sym)
-{
- tristate val;
-
- switch (sym->type) {
- case S_BOOLEAN:
- case S_TRISTATE:
- val = sym_get_tristate_value(sym);
- switch (val) {
- case no:
- return "n";
- case mod:
- return "m";
- case yes:
- return "y";
- }
- break;
- default:
- ;
- }
- return (const char *)sym->curr.val;
-}
-
-bool sym_is_changable(struct symbol *sym)
-{
- return sym->visible > sym->rev_dep.tri;
-}
-
-struct symbol *sym_lookup(const char *name, int isconst)
-{
- struct symbol *symbol;
- const char *ptr;
- char *new_name;
- int hash = 0;
-
- if (name) {
- if (name[0] && !name[1]) {
- switch (name[0]) {
- case 'y': return &symbol_yes;
- case 'm': return &symbol_mod;
- case 'n': return &symbol_no;
- }
- }
- for (ptr = name; *ptr; ptr++)
- hash += *ptr;
- hash &= 0xff;
-
- for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
- if (!strcmp(symbol->name, name)) {
- if ((isconst && symbol->flags & SYMBOL_CONST) ||
- (!isconst && !(symbol->flags & SYMBOL_CONST)))
- return symbol;
- }
- }
- new_name = strdup(name);
- } else {
- new_name = NULL;
- hash = 256;
- }
-
- symbol = malloc(sizeof(*symbol));
- memset(symbol, 0, sizeof(*symbol));
- symbol->name = new_name;
- symbol->type = S_UNKNOWN;
- if (isconst)
- symbol->flags |= SYMBOL_CONST;
-
- symbol->next = symbol_hash[hash];
- symbol_hash[hash] = symbol;
-
- return symbol;
-}
-
-struct symbol *sym_find(const char *name)
-{
- struct symbol *symbol = NULL;
- const char *ptr;
- int hash = 0;
-
- if (!name)
- return NULL;
-
- if (name[0] && !name[1]) {
- switch (name[0]) {
- case 'y': return &symbol_yes;
- case 'm': return &symbol_mod;
- case 'n': return &symbol_no;
- }
- }
- for (ptr = name; *ptr; ptr++)
- hash += *ptr;
- hash &= 0xff;
-
- for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
- if (!strcmp(symbol->name, name) &&
- !(symbol->flags & SYMBOL_CONST))
- break;
- }
-
- return symbol;
-}
-
-struct symbol **sym_re_search(const char *pattern)
-{
- struct symbol *sym, **sym_arr = NULL;
- int i, cnt, size;
- regex_t re;
-
- cnt = size = 0;
- /* Skip if empty */
- if (strlen(pattern) == 0)
- return NULL;
- if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
- return NULL;
-
- for_all_symbols(i, sym) {
- if (sym->flags & SYMBOL_CONST || !sym->name)
- continue;
- if (regexec(&re, sym->name, 0, NULL, 0))
- continue;
- if (cnt + 1 >= size) {
- void *tmp = sym_arr;
- size += 16;
- sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
- if (!sym_arr) {
- free(tmp);
- return NULL;
- }
- }
- sym_arr[cnt++] = sym;
- }
- if (sym_arr)
- sym_arr[cnt] = NULL;
- regfree(&re);
-
- return sym_arr;
-}
-
-
-struct symbol *sym_check_deps(struct symbol *sym);
-
-static struct symbol *sym_check_expr_deps(struct expr *e)
-{
- struct symbol *sym;
-
- if (!e)
- return NULL;
- switch (e->type) {
- case E_OR:
- case E_AND:
- sym = sym_check_expr_deps(e->left.expr);
- if (sym)
- return sym;
- return sym_check_expr_deps(e->right.expr);
- case E_NOT:
- return sym_check_expr_deps(e->left.expr);
- case E_EQUAL:
- case E_UNEQUAL:
- sym = sym_check_deps(e->left.sym);
- if (sym)
- return sym;
- return sym_check_deps(e->right.sym);
- case E_SYMBOL:
- return sym_check_deps(e->left.sym);
- default:
- break;
- }
- printf("Oops! How to check %d?\n", e->type);
- return NULL;
-}
-
-/* return NULL when dependencies are OK */
-struct symbol *sym_check_deps(struct symbol *sym)
-{
- struct symbol *sym2;
- struct property *prop;
-
- if (sym->flags & SYMBOL_CHECK) {
- fprintf(stderr, "%s:%d:error: found recursive dependency: %s",
- sym->prop->file->name, sym->prop->lineno, sym->name);
- return sym;
- }
- if (sym->flags & SYMBOL_CHECKED)
- return NULL;
-
- sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
- sym2 = sym_check_expr_deps(sym->rev_dep.expr);
- if (sym2)
- goto out;
-
- for (prop = sym->prop; prop; prop = prop->next) {
- if (prop->type == P_CHOICE || prop->type == P_SELECT)
- continue;
- sym2 = sym_check_expr_deps(prop->visible.expr);
- if (sym2)
- goto out;
- if (prop->type != P_DEFAULT || sym_is_choice(sym))
- continue;
- sym2 = sym_check_expr_deps(prop->expr);
- if (sym2)
- goto out;
- }
-out:
- if (sym2)
- fprintf(stderr, " -> %s%s", sym->name, sym2 == sym? "\n": "");
- sym->flags &= ~SYMBOL_CHECK;
- return sym2;
-}
-
-struct property *prop_alloc(enum prop_type type, struct symbol *sym)
-{
- struct property *prop;
- struct property **propp;
-
- prop = malloc(sizeof(*prop));
- memset(prop, 0, sizeof(*prop));
- prop->type = type;
- prop->sym = sym;
- prop->file = current_file;
- prop->lineno = zconf_lineno();
-
- /* append property to the prop list of symbol */
- if (sym) {
- for (propp = &sym->prop; *propp; propp = &(*propp)->next)
- ;
- *propp = prop;
- }
-
- return prop;
-}
-
-struct symbol *prop_get_symbol(struct property *prop)
-{
- if (prop->expr && (prop->expr->type == E_SYMBOL ||
- prop->expr->type == E_LIST))
- return prop->expr->left.sym;
- return NULL;
-}
-
-const char *prop_get_type_name(enum prop_type type)
-{
- switch (type) {
- case P_PROMPT:
- return "prompt";
- case P_ENV:
- return "env";
- case P_COMMENT:
- return "comment";
- case P_MENU:
- return "menu";
- case P_DEFAULT:
- return "default";
- case P_CHOICE:
- return "choice";
- case P_SELECT:
- return "select";
- case P_RANGE:
- return "range";
- case P_UNKNOWN:
- break;
- }
- return "unknown";
-}
-
-void prop_add_env(const char *env)
-{
- struct symbol *sym, *sym2;
- struct property *prop;
- char *p;
-
- sym = current_entry->sym;
- sym->flags |= SYMBOL_AUTO;
- for_all_properties(sym, prop, P_ENV) {
- sym2 = prop_get_symbol(prop);
- if (strcmp(sym2->name, env))
- menu_warn(current_entry, "redefining environment symbol from %s",
- sym2->name);
- return;
- }
-
- prop = prop_alloc(P_ENV, sym);
- prop->expr = expr_alloc_symbol(sym_lookup(env, 1));
-
- sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
- sym_env_list->right.sym = sym;
-
- p = getenv(env);
- if (p)
- sym_add_default(sym, p);
- else
- menu_warn(current_entry, "environment variable %s undefined", env);
-}