// SPDX-License-Identifier: GPL-2.0+
/* makemapdata.c
 * originally written by: Kirk Reiser.
 *
 ** Copyright (C) 2002  Kirk Reiser.
 *  Copyright (C) 2003  David Borowski.
 */

#include <stdlib.h>
#include <stdio.h>
#include <libgen.h>
#include <string.h>
#include <ctype.h>
#include "utils.h"

static char buffer[256];

static int get_define(void)
{
        char *c;

        while (fgets(buffer, sizeof(buffer)-1, infile)) {
                lc++;
                if (strncmp(buffer, "#define", 7))
                        continue;
                c = buffer + 7;
                while (*c == ' ' || *c == '\t')
                        c++;
                def_name = c;
                while (*c && *c != ' ' && *c != '\t' && *c != '\n')
                        c++;
                if (!*c || *c == '\n')
                        continue;
                *c++ = '\0';
                while (*c == ' ' || *c == '\t' || *c == '(')
                        c++;
                def_val = c;
                while (*c && *c != '\n' && *c != ')')
                        c++;
                *c++ = '\0';
                return 1;
        }
        fclose(infile);
        infile = 0;
        return 0;
}

int
main(int argc, char *argv[])
{
        int value, i;
        struct st_key *this;
        const char *dir_name, *spk_dir_name;
        char *cp;

        dir_name = getenv("TOPDIR");
        if (!dir_name)
                dir_name = ".";
        spk_dir_name = getenv("SPKDIR");
        if (!spk_dir_name)
                spk_dir_name = "drivers/accessibility/speakup";
        bzero(key_table, sizeof(key_table));
        add_key("shift",        1, is_shift);
        add_key("altgr",        2, is_shift);
        add_key("ctrl", 4, is_shift);
        add_key("alt",  8, is_shift);
        add_key("spk", 16, is_shift);
        add_key("double", 32, is_shift);

        open_input(dir_name, "include/linux/input.h");
        while (get_define()) {
                if (strncmp(def_name, "KEY_", 4))
                        continue;
                value = atoi(def_val);
                if (value > 0 && value < MAXKEYVAL)
                        add_key(def_name, value, is_input);
        }

        open_input(dir_name, "include/uapi/linux/input-event-codes.h");
        while (get_define()) {
                if (strncmp(def_name, "KEY_", 4))
                        continue;
                value = atoi(def_val);
                if (value > 0 && value < MAXKEYVAL)
                        add_key(def_name, value, is_input);
        }

        open_input(spk_dir_name, "spk_priv_keyinfo.h");
        while (get_define()) {
                if (strlen(def_val) > 5) {
                        //if (def_val[0] == '(')
                        //      def_val++;
                        cp = strchr(def_val, '+');
                        if (!cp)
                                continue;
                        if (cp[-1] == ' ')
                                cp[-1] = '\0';
                        *cp++ = '\0';
                        this = find_key(def_val);
                        while (*cp == ' ')
                                cp++;
                        if (!this || *cp < '0' || *cp > '9')
                                continue;
                        value = this->value+atoi(cp);
                } else if (!strncmp(def_val, "0x", 2))
                        sscanf(def_val+2, "%x", &value);
                else if (*def_val >= '0' && *def_val <= '9')
                        value = atoi(def_val);
                else
                        continue;
                add_key(def_name, value, is_spk);
        }

        printf("struct st_key_init init_key_data[] = {\n");
        for (i = 0; i < HASHSIZE; i++) {
                this = &key_table[i];
                if (!this->name)
                        continue;
                do {
                        printf("\t{ \"%s\", %d, %d, },\n", this->name, this->value, this->shift);
                        this = this->next;
                } while (this);
        }
        printf("\t{ \".\", 0, 0 }\n};\n");

        exit(0);
}