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