// 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);
}
Messung V0.5 in Prozent C=96 H=85 G=90
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-30)
¤
*© Formatika GbR, Deutschland