linux/scripts/kconfig/kxgettext.c
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   1/*
   2 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2005
   3 *
   4 * Released under the terms of the GNU GPL v2.0
   5 */
   6
   7#include <stdlib.h>
   8#include <string.h>
   9
  10#define LKC_DIRECT_LINK
  11#include "lkc.h"
  12
  13static char *escape(const char* text, char *bf, int len)
  14{
  15        char *bfp = bf;
  16        int multiline = strchr(text, '\n') != NULL;
  17        int eol = 0;
  18        int textlen = strlen(text);
  19
  20        if ((textlen > 0) && (text[textlen-1] == '\n'))
  21                eol = 1;
  22
  23        *bfp++ = '"';
  24        --len;
  25
  26        if (multiline) {
  27                *bfp++ = '"';
  28                *bfp++ = '\n';
  29                *bfp++ = '"';
  30                len -= 3;
  31        }
  32
  33        while (*text != '\0' && len > 1) {
  34                if (*text == '"')
  35                        *bfp++ = '\\';
  36                else if (*text == '\n') {
  37                        *bfp++ = '\\';
  38                        *bfp++ = 'n';
  39                        *bfp++ = '"';
  40                        *bfp++ = '\n';
  41                        *bfp++ = '"';
  42                        len -= 5;
  43                        ++text;
  44                        goto next;
  45                }
  46                else if (*text == '\\') {
  47                        *bfp++ = '\\';
  48                        len--;
  49                }
  50                *bfp++ = *text++;
  51next:
  52                --len;
  53        }
  54
  55        if (multiline && eol)
  56                bfp -= 3;
  57
  58        *bfp++ = '"';
  59        *bfp = '\0';
  60
  61        return bf;
  62}
  63
  64struct file_line {
  65        struct file_line *next;
  66        char*            file;
  67        int              lineno;
  68};
  69
  70static struct file_line *file_line__new(char *file, int lineno)
  71{
  72        struct file_line *self = malloc(sizeof(*self));
  73
  74        if (self == NULL)
  75                goto out;
  76
  77        self->file   = file;
  78        self->lineno = lineno;
  79        self->next   = NULL;
  80out:
  81        return self;
  82}
  83
  84struct message {
  85        const char       *msg;
  86        const char       *option;
  87        struct message   *next;
  88        struct file_line *files;
  89};
  90
  91static struct message *message__list;
  92
  93static struct message *message__new(const char *msg, char *option, char *file, int lineno)
  94{
  95        struct message *self = malloc(sizeof(*self));
  96
  97        if (self == NULL)
  98                goto out;
  99
 100        self->files = file_line__new(file, lineno);
 101        if (self->files == NULL)
 102                goto out_fail;
 103
 104        self->msg = strdup(msg);
 105        if (self->msg == NULL)
 106                goto out_fail_msg;
 107
 108        self->option = option;
 109        self->next = NULL;
 110out:
 111        return self;
 112out_fail_msg:
 113        free(self->files);
 114out_fail:
 115        free(self);
 116        self = NULL;
 117        goto out;
 118}
 119
 120static struct message *mesage__find(const char *msg)
 121{
 122        struct message *m = message__list;
 123
 124        while (m != NULL) {
 125                if (strcmp(m->msg, msg) == 0)
 126                        break;
 127                m = m->next;
 128        }
 129
 130        return m;
 131}
 132
 133static int message__add_file_line(struct message *self, char *file, int lineno)
 134{
 135        int rc = -1;
 136        struct file_line *fl = file_line__new(file, lineno);
 137
 138        if (fl == NULL)
 139                goto out;
 140
 141        fl->next    = self->files;
 142        self->files = fl;
 143        rc = 0;
 144out:
 145        return rc;
 146}
 147
 148static int message__add(const char *msg, char *option, char *file, int lineno)
 149{
 150        int rc = 0;
 151        char bf[16384];
 152        char *escaped = escape(msg, bf, sizeof(bf));
 153        struct message *m = mesage__find(escaped);
 154
 155        if (m != NULL)
 156                rc = message__add_file_line(m, file, lineno);
 157        else {
 158                m = message__new(escaped, option, file, lineno);
 159
 160                if (m != NULL) {
 161                        m->next       = message__list;
 162                        message__list = m;
 163                } else
 164                        rc = -1;
 165        }
 166        return rc;
 167}
 168
 169static void menu_build_message_list(struct menu *menu)
 170{
 171        struct menu *child;
 172
 173        message__add(menu_get_prompt(menu), NULL,
 174                     menu->file == NULL ? "Root Menu" : menu->file->name,
 175                     menu->lineno);
 176
 177        if (menu->sym != NULL && menu_has_help(menu))
 178                message__add(menu_get_help(menu), menu->sym->name,
 179                             menu->file == NULL ? "Root Menu" : menu->file->name,
 180                             menu->lineno);
 181
 182        for (child = menu->list; child != NULL; child = child->next)
 183                if (child->prompt != NULL)
 184                        menu_build_message_list(child);
 185}
 186
 187static void message__print_file_lineno(struct message *self)
 188{
 189        struct file_line *fl = self->files;
 190
 191        putchar('\n');
 192        if (self->option != NULL)
 193                printf("# %s:00000\n", self->option);
 194
 195        printf("#: %s:%d", fl->file, fl->lineno);
 196        fl = fl->next;
 197
 198        while (fl != NULL) {
 199                printf(", %s:%d", fl->file, fl->lineno);
 200                fl = fl->next;
 201        }
 202
 203        putchar('\n');
 204}
 205
 206static void message__print_gettext_msgid_msgstr(struct message *self)
 207{
 208        message__print_file_lineno(self);
 209
 210        printf("msgid %s\n"
 211               "msgstr \"\"\n", self->msg);
 212}
 213
 214static void menu__xgettext(void)
 215{
 216        struct message *m = message__list;
 217
 218        while (m != NULL) {
 219                /* skip empty lines ("") */
 220                if (strlen(m->msg) > sizeof("\"\""))
 221                        message__print_gettext_msgid_msgstr(m);
 222                m = m->next;
 223        }
 224}
 225
 226int main(int ac, char **av)
 227{
 228        conf_parse(av[1]);
 229
 230        menu_build_message_list(menu_get_root_menu(NULL));
 231        menu__xgettext();
 232        return 0;
 233}
 234