diff options
Diffstat (limited to 'drivers/accessibility/speakup/i18n.c')
| -rw-r--r-- | drivers/accessibility/speakup/i18n.c | 630 |
1 files changed, 630 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/i18n.c b/drivers/accessibility/speakup/i18n.c new file mode 100644 index 000000000..d62079b16 --- /dev/null +++ b/drivers/accessibility/speakup/i18n.c @@ -0,0 +1,630 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Internationalization implementation. Includes definitions of English + * string arrays, and the i18n pointer. + */ + +#include <linux/slab.h> /* For kmalloc. */ +#include <linux/ctype.h> +#include <linux/module.h> +#include <linux/string.h> +#include "speakup.h" +#include "spk_priv.h" + +static char *speakup_msgs[MSG_LAST_INDEX]; +static char *speakup_default_msgs[MSG_LAST_INDEX] = { + [MSG_BLANK] = "blank", + [MSG_IAM_ALIVE] = "I'm aLive!", + [MSG_YOU_KILLED_SPEAKUP] = "You killed speakup!", + [MSG_HEY_THATS_BETTER] = "hey. That's better!", + [MSG_YOU_TURNED_ME_OFF] = "You turned me off!", + [MSG_PARKED] = "parked!", + [MSG_UNPARKED] = "unparked!", + [MSG_MARK] = "mark", + [MSG_CUT] = "cut", + [MSG_MARK_CLEARED] = "mark, cleared", + [MSG_PASTE] = "paste", + [MSG_BRIGHT] = "bright", + [MSG_ON_BLINKING] = "on blinking", + [MSG_OFF] = "off", + [MSG_ON] = "on", + [MSG_NO_WINDOW] = "no window", + [MSG_CURSORING_OFF] = "cursoring off", + [MSG_CURSORING_ON] = "cursoring on", + [MSG_HIGHLIGHT_TRACKING] = "highlight tracking", + [MSG_READ_WINDOW] = "read windo", + [MSG_READ_ALL] = "read all", + [MSG_EDIT_DONE] = "edit done", + [MSG_WINDOW_ALREADY_SET] = "window already set, clear then reset", + [MSG_END_BEFORE_START] = "error end before start", + [MSG_WINDOW_CLEARED] = "window cleared", + [MSG_WINDOW_SILENCED] = "window silenced", + [MSG_WINDOW_SILENCE_DISABLED] = "window silence disabled", + [MSG_ERROR] = "error", + [MSG_GOTO_CANCELED] = "goto canceled", + [MSG_GOTO] = "go to?", + [MSG_LEAVING_HELP] = "leaving help", + [MSG_IS_UNASSIGNED] = "is unassigned", + [MSG_HELP_INFO] = + "press space to exit, up or down to scroll, or a letter to go to a command", + [MSG_EDGE_TOP] = "top,", + [MSG_EDGE_BOTTOM] = "bottom,", + [MSG_EDGE_LEFT] = "left,", + [MSG_EDGE_RIGHT] = "right,", + [MSG_NUMBER] = "number", + [MSG_SPACE] = "space", + [MSG_START] = "start", + [MSG_END] = "end", + [MSG_CTRL] = "control-", + [MSG_DISJUNCTION] = "or", + +/* Messages with embedded format specifiers. */ + [MSG_POS_INFO] = "line %ld, col %ld, t t y %d", + [MSG_CHAR_INFO] = "hex %02x, decimal %d", + [MSG_REPEAT_DESC] = "times %d .", + [MSG_REPEAT_DESC2] = "repeated %d .", + [MSG_WINDOW_LINE] = "window is line %d", + [MSG_WINDOW_BOUNDARY] = "%s at line %d, column %d", + [MSG_EDIT_PROMPT] = "edit %s, press space when done", + [MSG_NO_COMMAND] = "no commands for %c", + [MSG_KEYDESC] = "is %s", + + /* Control keys. */ + /* Most of these duplicate the entries in state names. */ + [MSG_CTL_SHIFT] = "shift", + [MSG_CTL_ALTGR] = "altgr", + [MSG_CTL_CONTROL] = "control", + [MSG_CTL_ALT] = "alt", + [MSG_CTL_LSHIFT] = "l shift", + [MSG_CTL_SPEAKUP] = "speakup", + [MSG_CTL_LCONTROL] = "l control", + [MSG_CTL_RCONTROL] = "r control", + [MSG_CTL_CAPSSHIFT] = "caps shift", + + /* Color names. */ + [MSG_COLOR_BLACK] = "black", + [MSG_COLOR_BLUE] = "blue", + [MSG_COLOR_GREEN] = "green", + [MSG_COLOR_CYAN] = "cyan", + [MSG_COLOR_RED] = "red", + [MSG_COLOR_MAGENTA] = "magenta", + [MSG_COLOR_YELLOW] = "yellow", + [MSG_COLOR_WHITE] = "white", + [MSG_COLOR_GREY] = "grey", + [MSG_COLOR_BRIGHTBLUE] = "bright blue", + [MSG_COLOR_BRIGHTGREEN] = "bright green", + [MSG_COLOR_BRIGHTCYAN] = "bright cyan", + [MSG_COLOR_BRIGHTRED] = "bright red", + [MSG_COLOR_BRIGHTMAGENTA] = "bright magenta", + [MSG_COLOR_BRIGHTYELLOW] = "bright yellow", + [MSG_COLOR_BRIGHTWHITE] = "bright white", + + /* Names of key states. */ + [MSG_STATE_DOUBLE] = "double", + [MSG_STATE_SPEAKUP] = "speakup", + [MSG_STATE_ALT] = "alt", + [MSG_STATE_CONTROL] = "ctrl", + [MSG_STATE_ALTGR] = "altgr", + [MSG_STATE_SHIFT] = "shift", + + /* Key names. */ + [MSG_KEYNAME_ESC] = "escape", + [MSG_KEYNAME_1] = "1", + [MSG_KEYNAME_2] = "2", + [MSG_KEYNAME_3] = "3", + [MSG_KEYNAME_4] = "4", + [MSG_KEYNAME_5] = "5", + [MSG_KEYNAME_6] = "6", + [MSG_KEYNAME_7] = "7", + [MSG_KEYNAME_8] = "8", + [MSG_KEYNAME_9] = "9", + [MSG_KEYNAME_0] = "0", + [MSG_KEYNAME_DASH] = "minus", + [MSG_KEYNAME_EQUAL] = "equal", + [MSG_KEYNAME_BS] = "back space", + [MSG_KEYNAME_TAB] = "tab", + [MSG_KEYNAME_Q] = "q", + [MSG_KEYNAME_W] = "w", + [MSG_KEYNAME_E] = "e", + [MSG_KEYNAME_R] = "r", + [MSG_KEYNAME_T] = "t", + [MSG_KEYNAME_Y] = "y", + [MSG_KEYNAME_U] = "u", + [MSG_KEYNAME_I] = "i", + [MSG_KEYNAME_O] = "o", + [MSG_KEYNAME_P] = "p", + [MSG_KEYNAME_LEFTBRACE] = "left brace", + [MSG_KEYNAME_RIGHTBRACE] = "right brace", + [MSG_KEYNAME_ENTER] = "enter", + [MSG_KEYNAME_LEFTCTRL] = "left control", + [MSG_KEYNAME_A] = "a", + [MSG_KEYNAME_S] = "s", + [MSG_KEYNAME_D] = "d", + [MSG_KEYNAME_F] = "f", + [MSG_KEYNAME_G] = "g", + [MSG_KEYNAME_H] = "h", + [MSG_KEYNAME_J] = "j", + [MSG_KEYNAME_K] = "k", + [MSG_KEYNAME_L] = "l", + [MSG_KEYNAME_SEMICOLON] = "semicolon", + [MSG_KEYNAME_SINGLEQUOTE] = "apostrophe", + [MSG_KEYNAME_GRAVE] = "accent", + [MSG_KEYNAME_LEFTSHFT] = "left shift", + [MSG_KEYNAME_BACKSLASH] = "back slash", + [MSG_KEYNAME_Z] = "z", + [MSG_KEYNAME_X] = "x", + [MSG_KEYNAME_C] = "c", + [MSG_KEYNAME_V] = "v", + [MSG_KEYNAME_B] = "b", + [MSG_KEYNAME_N] = "n", + [MSG_KEYNAME_M] = "m", + [MSG_KEYNAME_COMMA] = "comma", + [MSG_KEYNAME_DOT] = "dot", + [MSG_KEYNAME_SLASH] = "slash", + [MSG_KEYNAME_RIGHTSHFT] = "right shift", + [MSG_KEYNAME_KPSTAR] = "keypad asterisk", + [MSG_KEYNAME_LEFTALT] = "left alt", + [MSG_KEYNAME_SPACE] = "space", + [MSG_KEYNAME_CAPSLOCK] = "caps lock", + [MSG_KEYNAME_F1] = "f1", + [MSG_KEYNAME_F2] = "f2", + [MSG_KEYNAME_F3] = "f3", + [MSG_KEYNAME_F4] = "f4", + [MSG_KEYNAME_F5] = "f5", + [MSG_KEYNAME_F6] = "f6", + [MSG_KEYNAME_F7] = "f7", + [MSG_KEYNAME_F8] = "f8", + [MSG_KEYNAME_F9] = "f9", + [MSG_KEYNAME_F10] = "f10", + [MSG_KEYNAME_NUMLOCK] = "num lock", + [MSG_KEYNAME_SCROLLLOCK] = "scroll lock", + [MSG_KEYNAME_KP7] = "keypad 7", + [MSG_KEYNAME_KP8] = "keypad 8", + [MSG_KEYNAME_KP9] = "keypad 9", + [MSG_KEYNAME_KPMINUS] = "keypad minus", + [MSG_KEYNAME_KP4] = "keypad 4", + [MSG_KEYNAME_KP5] = "keypad 5", + [MSG_KEYNAME_KP6] = "keypad 6", + [MSG_KEYNAME_KPPLUS] = "keypad plus", + [MSG_KEYNAME_KP1] = "keypad 1", + [MSG_KEYNAME_KP2] = "keypad 2", + [MSG_KEYNAME_KP3] = "keypad 3", + [MSG_KEYNAME_KP0] = "keypad 0", + [MSG_KEYNAME_KPDOT] = "keypad dot", + [MSG_KEYNAME_103RD] = "103rd", + [MSG_KEYNAME_F13] = "f13", + [MSG_KEYNAME_102ND] = "102nd", + [MSG_KEYNAME_F11] = "f11", + [MSG_KEYNAME_F12] = "f12", + [MSG_KEYNAME_F14] = "f14", + [MSG_KEYNAME_F15] = "f15", + [MSG_KEYNAME_F16] = "f16", + [MSG_KEYNAME_F17] = "f17", + [MSG_KEYNAME_F18] = "f18", + [MSG_KEYNAME_F19] = "f19", + [MSG_KEYNAME_F20] = "f20", + [MSG_KEYNAME_KPENTER] = "keypad enter", + [MSG_KEYNAME_RIGHTCTRL] = "right control", + [MSG_KEYNAME_KPSLASH] = "keypad slash", + [MSG_KEYNAME_SYSRQ] = "sysrq", + [MSG_KEYNAME_RIGHTALT] = "right alt", + [MSG_KEYNAME_LF] = "line feed", + [MSG_KEYNAME_HOME] = "home", + [MSG_KEYNAME_UP] = "up", + [MSG_KEYNAME_PGUP] = "page up", + [MSG_KEYNAME_LEFT] = "left", + [MSG_KEYNAME_RIGHT] = "right", + [MSG_KEYNAME_END] = "end", + [MSG_KEYNAME_DOWN] = "down", + [MSG_KEYNAME_PGDN] = "page down", + [MSG_KEYNAME_INS] = "insert", + [MSG_KEYNAME_DEL] = "delete", + [MSG_KEYNAME_MACRO] = "macro", + [MSG_KEYNAME_MUTE] = "mute", + [MSG_KEYNAME_VOLDOWN] = "volume down", + [MSG_KEYNAME_VOLUP] = "volume up", + [MSG_KEYNAME_POWER] = "power", + [MSG_KEYNAME_KPEQUAL] = "keypad equal", + [MSG_KEYNAME_KPPLUSDASH] = "keypad plusminus", + [MSG_KEYNAME_PAUSE] = "pause", + [MSG_KEYNAME_F21] = "f21", + [MSG_KEYNAME_F22] = "f22", + [MSG_KEYNAME_F23] = "f23", + [MSG_KEYNAME_F24] = "f24", + [MSG_KEYNAME_KPCOMMA] = "keypad comma", + [MSG_KEYNAME_LEFTMETA] = "left meta", + [MSG_KEYNAME_RIGHTMETA] = "right meta", + [MSG_KEYNAME_COMPOSE] = "compose", + [MSG_KEYNAME_STOP] = "stop", + [MSG_KEYNAME_AGAIN] = "again", + [MSG_KEYNAME_PROPS] = "props", + [MSG_KEYNAME_UNDO] = "undo", + [MSG_KEYNAME_FRONT] = "front", + [MSG_KEYNAME_COPY] = "copy", + [MSG_KEYNAME_OPEN] = "open", + [MSG_KEYNAME_PASTE] = "paste", + [MSG_KEYNAME_FIND] = "find", + [MSG_KEYNAME_CUT] = "cut", + [MSG_KEYNAME_HELP] = "help", + [MSG_KEYNAME_MENU] = "menu", + [MSG_KEYNAME_CALC] = "calc", + [MSG_KEYNAME_SETUP] = "setup", + [MSG_KEYNAME_SLEEP] = "sleep", + [MSG_KEYNAME_WAKEUP] = "wakeup", + [MSG_KEYNAME_FILE] = "file", + [MSG_KEYNAME_SENDFILE] = "send file", + [MSG_KEYNAME_DELFILE] = "delete file", + [MSG_KEYNAME_XFER] = "transfer", + [MSG_KEYNAME_PROG1] = "prog1", + [MSG_KEYNAME_PROG2] = "prog2", + [MSG_KEYNAME_WWW] = "www", + [MSG_KEYNAME_MSDOS] = "msdos", + [MSG_KEYNAME_COFFEE] = "coffee", + [MSG_KEYNAME_DIRECTION] = "direction", + [MSG_KEYNAME_CYCLEWINDOWS] = "cycle windows", + [MSG_KEYNAME_MAIL] = "mail", + [MSG_KEYNAME_BOOKMARKS] = "bookmarks", + [MSG_KEYNAME_COMPUTER] = "computer", + [MSG_KEYNAME_BACK] = "back", + [MSG_KEYNAME_FORWARD] = "forward", + [MSG_KEYNAME_CLOSECD] = "close cd", + [MSG_KEYNAME_EJECTCD] = "eject cd", + [MSG_KEYNAME_EJECTCLOSE] = "eject close cd", + [MSG_KEYNAME_NEXTSONG] = "next song", + [MSG_KEYNAME_PLAYPAUSE] = "play pause", + [MSG_KEYNAME_PREVSONG] = "previous song", + [MSG_KEYNAME_STOPCD] = "stop cd", + [MSG_KEYNAME_RECORD] = "record", + [MSG_KEYNAME_REWIND] = "rewind", + [MSG_KEYNAME_PHONE] = "phone", + [MSG_KEYNAME_ISO] = "iso", + [MSG_KEYNAME_CONFIG] = "config", + [MSG_KEYNAME_HOMEPG] = "home page", + [MSG_KEYNAME_REFRESH] = "refresh", + [MSG_KEYNAME_EXIT] = "exit", + [MSG_KEYNAME_MOVE] = "move", + [MSG_KEYNAME_EDIT] = "edit", + [MSG_KEYNAME_SCROLLUP] = "scroll up", + [MSG_KEYNAME_SCROLLDN] = "scroll down", + [MSG_KEYNAME_KPLEFTPAR] = "keypad left paren", + [MSG_KEYNAME_KPRIGHTPAR] = "keypad right paren", + + /* Function names. */ + [MSG_FUNCNAME_ATTRIB_BLEEP_DEC] = "attribute bleep decrement", + [MSG_FUNCNAME_ATTRIB_BLEEP_INC] = "attribute bleep increment", + [MSG_FUNCNAME_BLEEPS_DEC] = "bleeps decrement", + [MSG_FUNCNAME_BLEEPS_INC] = "bleeps increment", + [MSG_FUNCNAME_CHAR_FIRST] = "character, first", + [MSG_FUNCNAME_CHAR_LAST] = "character, last", + [MSG_FUNCNAME_CHAR_CURRENT] = "character, say current", + [MSG_FUNCNAME_CHAR_HEX_AND_DEC] = "character, say hex and decimal", + [MSG_FUNCNAME_CHAR_NEXT] = "character, say next", + [MSG_FUNCNAME_CHAR_PHONETIC] = "character, say phonetic", + [MSG_FUNCNAME_CHAR_PREVIOUS] = "character, say previous", + [MSG_FUNCNAME_CURSOR_PARK] = "cursor park", + [MSG_FUNCNAME_CUT] = "cut", + [MSG_FUNCNAME_EDIT_DELIM] = "edit delimiters", + [MSG_FUNCNAME_EDIT_EXNUM] = "edit exnum", + [MSG_FUNCNAME_EDIT_MOST] = "edit most", + [MSG_FUNCNAME_EDIT_REPEATS] = "edit repeats", + [MSG_FUNCNAME_EDIT_SOME] = "edit some", + [MSG_FUNCNAME_GOTO] = "go to", + [MSG_FUNCNAME_GOTO_BOTTOM] = "go to bottom edge", + [MSG_FUNCNAME_GOTO_LEFT] = "go to left edge", + [MSG_FUNCNAME_GOTO_RIGHT] = "go to right edge", + [MSG_FUNCNAME_GOTO_TOP] = "go to top edge", + [MSG_FUNCNAME_HELP] = "help", + [MSG_FUNCNAME_LINE_SAY_CURRENT] = "line, say current", + [MSG_FUNCNAME_LINE_SAY_NEXT] = "line, say next", + [MSG_FUNCNAME_LINE_SAY_PREVIOUS] = "line, say previous", + [MSG_FUNCNAME_LINE_SAY_WITH_INDENT] = "line, say with indent", + [MSG_FUNCNAME_PASTE] = "paste", + [MSG_FUNCNAME_PITCH_DEC] = "pitch decrement", + [MSG_FUNCNAME_PITCH_INC] = "pitch increment", + [MSG_FUNCNAME_PUNC_DEC] = "punctuation decrement", + [MSG_FUNCNAME_PUNC_INC] = "punctuation increment", + [MSG_FUNCNAME_PUNC_LEVEL_DEC] = "punc level decrement", + [MSG_FUNCNAME_PUNC_LEVEL_INC] = "punc level increment", + [MSG_FUNCNAME_QUIET] = "quiet", + [MSG_FUNCNAME_RATE_DEC] = "rate decrement", + [MSG_FUNCNAME_RATE_INC] = "rate increment", + [MSG_FUNCNAME_READING_PUNC_DEC] = "reading punctuation decrement", + [MSG_FUNCNAME_READING_PUNC_INC] = "reading punctuation increment", + [MSG_FUNCNAME_SAY_ATTRIBUTES] = "say attributes", + [MSG_FUNCNAME_SAY_FROM_LEFT] = "say from left", + [MSG_FUNCNAME_SAY_FROM_TOP] = "say from top", + [MSG_FUNCNAME_SAY_POSITION] = "say position", + [MSG_FUNCNAME_SAY_SCREEN] = "say screen", + [MSG_FUNCNAME_SAY_TO_BOTTOM] = "say to bottom", + [MSG_FUNCNAME_SAY_TO_RIGHT] = "say to right", + [MSG_FUNCNAME_SPEAKUP] = "speakup", + [MSG_FUNCNAME_SPEAKUP_LOCK] = "speakup lock", + [MSG_FUNCNAME_SPEAKUP_OFF] = "speakup off", + [MSG_FUNCNAME_SPEECH_KILL] = "speech kill", + [MSG_FUNCNAME_SPELL_DELAY_DEC] = "spell delay decrement", + [MSG_FUNCNAME_SPELL_DELAY_INC] = "spell delay increment", + [MSG_FUNCNAME_SPELL_WORD] = "spell word", + [MSG_FUNCNAME_SPELL_WORD_PHONETICALLY] = "spell word phonetically", + [MSG_FUNCNAME_TONE_DEC] = "tone decrement", + [MSG_FUNCNAME_TONE_INC] = "tone increment", + [MSG_FUNCNAME_VOICE_DEC] = "voice decrement", + [MSG_FUNCNAME_VOICE_INC] = "voice increment", + [MSG_FUNCNAME_VOLUME_DEC] = "volume decrement", + [MSG_FUNCNAME_VOLUME_INC] = "volume increment", + [MSG_FUNCNAME_WINDOW_CLEAR] = "window, clear", + [MSG_FUNCNAME_WINDOW_SAY] = "window, say", + [MSG_FUNCNAME_WINDOW_SET] = "window, set", + [MSG_FUNCNAME_WINDOW_SILENCE] = "window, silence", + [MSG_FUNCNAME_WORD_SAY_CURRENT] = "word, say current", + [MSG_FUNCNAME_WORD_SAY_NEXT] = "word, say next", + [MSG_FUNCNAME_WORD_SAY_PREVIOUS] = "word, say previous", +}; + +static struct msg_group_t all_groups[] = { + { + .name = "ctl_keys", + .start = MSG_CTL_START, + .end = MSG_CTL_END, + }, + { + .name = "colors", + .start = MSG_COLORS_START, + .end = MSG_COLORS_END, + }, + { + .name = "formatted", + .start = MSG_FORMATTED_START, + .end = MSG_FORMATTED_END, + }, + { + .name = "function_names", + .start = MSG_FUNCNAMES_START, + .end = MSG_FUNCNAMES_END, + }, + { + .name = "key_names", + .start = MSG_KEYNAMES_START, + .end = MSG_KEYNAMES_END, + }, + { + .name = "announcements", + .start = MSG_ANNOUNCEMENTS_START, + .end = MSG_ANNOUNCEMENTS_END, + }, + { + .name = "states", + .start = MSG_STATES_START, + .end = MSG_STATES_END, + }, +}; + +static const int num_groups = ARRAY_SIZE(all_groups); + +char *spk_msg_get(enum msg_index_t index) +{ + return speakup_msgs[index]; +} + +/* + * Function: next_specifier + * Finds the start of the next format specifier in the argument string. + * Return value: pointer to start of format + * specifier, or NULL if no specifier exists. + */ +static char *next_specifier(char *input) +{ + int found = 0; + char *next_percent = input; + + while (next_percent && !found) { + next_percent = strchr(next_percent, '%'); + if (next_percent) { + /* skip over doubled percent signs */ + while (next_percent[0] == '%' && + next_percent[1] == '%') + next_percent += 2; + if (*next_percent == '%') + found = 1; + else if (*next_percent == '\0') + next_percent = NULL; + } + } + + return next_percent; +} + +/* Skip over 0 or more flags. */ +static char *skip_flags(char *input) +{ + while ((*input != '\0') && strchr(" 0+-#", *input)) + input++; + return input; +} + +/* Skip over width.precision, if it exists. */ +static char *skip_width(char *input) +{ + while (isdigit(*input)) + input++; + if (*input == '.') { + input++; + while (isdigit(*input)) + input++; + } + return input; +} + +/* + * Skip past the end of the conversion part. + * Note that this code only accepts a handful of conversion specifiers: + * c d s x and ld. Not accidental; these are exactly the ones used in + * the default group of formatted messages. + */ +static char *skip_conversion(char *input) +{ + if ((input[0] == 'l') && (input[1] == 'd')) + input += 2; + else if ((*input != '\0') && strchr("cdsx", *input)) + input++; + return input; +} + +/* + * Function: find_specifier_end + * Return a pointer to the end of the format specifier. + */ +static char *find_specifier_end(char *input) +{ + input++; /* Advance over %. */ + input = skip_flags(input); + input = skip_width(input); + input = skip_conversion(input); + return input; +} + +/* + * Function: compare_specifiers + * Compare the format specifiers pointed to by *input1 and *input2. + * Return true if they are the same, false otherwise. + * Advance *input1 and *input2 so that they point to the character following + * the end of the specifier. + */ +static bool compare_specifiers(char **input1, char **input2) +{ + bool same = false; + char *end1 = find_specifier_end(*input1); + char *end2 = find_specifier_end(*input2); + size_t length1 = end1 - *input1; + size_t length2 = end2 - *input2; + + if ((length1 == length2) && !memcmp(*input1, *input2, length1)) + same = true; + + *input1 = end1; + *input2 = end2; + return same; +} + +/* + * Function: fmt_validate + * Check that two format strings contain the same number of format specifiers, + * and that the order of specifiers is the same in both strings. + * Return true if the condition holds, false if it doesn't. + */ +static bool fmt_validate(char *template, char *user) +{ + bool valid = true; + bool still_comparing = true; + char *template_ptr = template; + char *user_ptr = user; + + while (still_comparing && valid) { + template_ptr = next_specifier(template_ptr); + user_ptr = next_specifier(user_ptr); + if (template_ptr && user_ptr) { + /* Both have at least one more specifier. */ + valid = compare_specifiers(&template_ptr, &user_ptr); + } else { + /* No more format specifiers in one or both strings. */ + still_comparing = false; + /* See if one has more specifiers than the other. */ + if (template_ptr || user_ptr) + valid = false; + } + } + return valid; +} + +/* + * Function: msg_set + * Description: Add a user-supplied message to the user_messages array. + * The message text is copied to a memory area allocated with kmalloc. + * If the function fails, then user_messages is untouched. + * Arguments: + * - index: a message number, as found in i18n.h. + * - text: text of message. Not NUL-terminated. + * - length: number of bytes in text. + * Failure conditions: + * -EINVAL - Invalid format specifiers in formatted message or illegal index. + * -ENOMEM - Unable to allocate memory. + */ +ssize_t spk_msg_set(enum msg_index_t index, char *text, size_t length) +{ + char *newstr = NULL; + unsigned long flags; + + if ((index < MSG_FIRST_INDEX) || (index >= MSG_LAST_INDEX)) + return -EINVAL; + + newstr = kmemdup_nul(text, length, GFP_KERNEL); + if (!newstr) + return -ENOMEM; + + if (index >= MSG_FORMATTED_START && + index <= MSG_FORMATTED_END && + !fmt_validate(speakup_default_msgs[index], newstr)) { + kfree(newstr); + return -EINVAL; + } + spin_lock_irqsave(&speakup_info.spinlock, flags); + if (speakup_msgs[index] != speakup_default_msgs[index]) + kfree(speakup_msgs[index]); + speakup_msgs[index] = newstr; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + return 0; +} + +/* + * Find a message group, given its name. Return a pointer to the structure + * if found, or NULL otherwise. + */ +struct msg_group_t *spk_find_msg_group(const char *group_name) +{ + struct msg_group_t *group = NULL; + int i; + + for (i = 0; i < num_groups; i++) { + if (!strcmp(all_groups[i].name, group_name)) { + group = &all_groups[i]; + break; + } + } + return group; +} + +void spk_reset_msg_group(struct msg_group_t *group) +{ + unsigned long flags; + enum msg_index_t i; + + spin_lock_irqsave(&speakup_info.spinlock, flags); + + for (i = group->start; i <= group->end; i++) { + if (speakup_msgs[i] != speakup_default_msgs[i]) + kfree(speakup_msgs[i]); + speakup_msgs[i] = speakup_default_msgs[i]; + } + spin_unlock_irqrestore(&speakup_info.spinlock, flags); +} + +/* Called at initialization time, to establish default messages. */ +void spk_initialize_msgs(void) +{ + memcpy(speakup_msgs, speakup_default_msgs, + sizeof(speakup_default_msgs)); +} + +/* Free user-supplied strings when module is unloaded: */ +void spk_free_user_msgs(void) +{ + enum msg_index_t index; + unsigned long flags; + + spin_lock_irqsave(&speakup_info.spinlock, flags); + for (index = MSG_FIRST_INDEX; index < MSG_LAST_INDEX; index++) { + if (speakup_msgs[index] != speakup_default_msgs[index]) { + kfree(speakup_msgs[index]); + speakup_msgs[index] = speakup_default_msgs[index]; + } + } + spin_unlock_irqrestore(&speakup_info.spinlock, flags); +} |