#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define FREE(x) if (x) {free(x); x = NULL;} extern BOOL HTPassHighCtrlRaw; extern HTCJKlang HTCJK; /* If you want to add mouse support for some new platform, it's fairly ** simple to do. Once you've determined the X and Y coordinates of ** the mouse event, loop through the elements in the links[] array and ** see if the coordinates fall within a highlighted link area. If so, ** the code must set mouse_link to the index of the chosen link, ** and return a key value that corresponds to LYK_ACTIVATE. The ** LYK_ACTIVATE code in LYMainLoop.c will then check mouse_link ** and activate that link. If the mouse event didn't fall within a ** link, the code should just set mouse_link to -1 and return -1. --AMK **/ /* The number of the link selected w/ the mouse (-1 if none) */ static int mouse_link = -1; /* Return the value of mouse_link, erasing it */ PUBLIC int get_mouse_link NOARGS { int t; t=mouse_link; mouse_link = -1; return t; } /* Given X and Y coordinates of a mouse event, set mouse_link to the ** index of the corresponding hyperlink, or set mouse_link to -1 if no ** link matches the event. Returns -1 if no link matched the click, ** or a keycode that must be returned from LYgetch() to activate the ** link. **/ PRIVATE int set_clicked_link ARGS2(int,x,int,y) { int i; /* Loop over the links and see if we can get a match */ for(i=0; i < nlinks && mouse_link == -1; i++) { /* Check the first line of the link */ if ( links[i].hightext != NULL && links[i].ly == y && (x - links[i].lx) < (int)strlen(links[i].hightext ) ) { mouse_link=i; } /* Check the second line */ if (links[i].hightext2 != NULL && 1+links[i].ly == y && (x - links[i].hightext2_offset) < (int)strlen(links[i].hightext2) ) { mouse_link=i; } } /* If no link was found, just return a do-nothing code */ if (mouse_link == -1) return -1; /* If a link was hit, we must look for a key which will activate LYK_ACTIVATE ** XXX The 127 in the following line will depend on the size of the keymap[] ** array. However, usually we'll find LYK_ACTIVATE somewhere in the first ** 127 keys (it's usually mapped to the Enter key) **/ for (i=0; i<127; i++) { if (LYisNonAlnumKeyname(i, LYK_ACTIVATE)) { return i; } } /* Whoops! Nothing's defined as LYK_ACTIVATE! Well, who are we to argue with the user? Forget about the mouse click */ mouse_link = -1; return -1; } /* * LYstrncpy() terminates strings with a null byte. * Writes a null byte into the n+1 byte of dst. */ PUBLIC char *LYstrncpy ARGS3( char *, dst, CONST char *, src, int, n) { char *val; int len=strlen(src); if (n < 0) n = 0; val = strncpy(dst, src, n); if (len < n) *(dst+len) = '\0'; else *(dst+n) = '\0'; return val; } #define IS_NEW_GLYPH(ch) (utf_flag && ((unsigned char)(ch)&0xc0) != 0x80) #define IS_UTF_EXTRA(ch) (utf_flag && ((unsigned char)(ch)&0xc0) == 0x80) /* * LYmbcsstrncpy() terminates strings with a null byte. * It takes account of multibyte characters. * The src string is copied until either end of string or max number of * either bytes or glyphs (mbcs sequences) (CJK or UTF8). The utf_flag * argument should be TRUE for UTF8. - KW & FM */ PUBLIC char * LYmbcsstrncpy ARGS5( char *, dst, CONST char *, src, int, n_bytes, int, n_glyphs, BOOL, utf_flag) { char *val = dst; int i_bytes = 0, i_glyphs = 0; if (n_bytes < 0) n_bytes = 0; if (n_glyphs < 0) n_glyphs = 0; for (; *src != '\0' && i_bytes < n_bytes; i_bytes++) { if (IS_NEW_GLYPH(*src)) { if (i_glyphs++ >= n_glyphs) { *dst = '\0'; return val; } } *(dst++) = *(src++); } *dst = '\0'; return val; } /* * LYmbcs_skip_glyphs() skips a given number of display positions * in a string and returns the resulting pointer. It takes account * of UTF-8 encoded characters. - KW */ PUBLIC char * LYmbcs_skip_glyphs ARGS3( char *, data, int, n_glyphs, BOOL, utf_flag) { int i_glyphs = 0; if (n_glyphs < 0) n_glyphs = 0; if (!data) return NULL; if (!utf_flag) return (data + n_glyphs); while (*data) { if (IS_NEW_GLYPH(*data)) { if (i_glyphs++ >= n_glyphs) { return data; } } data++; } return data; } /* * LYmbcsstrlen() returns the printable length of a string * that might contain IsSpecial or multibyte (CJK or UTF8) * characters. - FM */ PUBLIC int LYmbcsstrlen ARGS2( char *, str, BOOL, utf_flag) { int i, j, len = 0; if (!str && *str) return(len); for (i = 0; str[i] != '\0'; i++) { if (IsSpecialAttrChar(str[i])) { continue; } else { len++; } if (IS_NEW_GLYPH(str[i])) { j = 0; while (str[(i + 1)] != '\0' && !IsSpecialAttrChar(str[(i + 1)]) && j < 5 && IS_UTF_EXTRA(str[(i + 1)])) { i++; j++; } } else if (!utf_flag && HTCJK != NOCJK && !isascii(str[i]) && str[(i + 1)] != '\0' && !IsSpecialAttrChar(str[(i + 1)])) { i++; } } return(len); } #undef GetChar #ifdef USE_SLANG #ifdef VMS #define GetChar() ttgetc() #else #define GetChar (int)SLang_getkey #endif /* VMS */ #endif /* USE_SLANG */ #if !defined(GetChar) && defined(NCURSES) #define GetChar() wgetch(my_subwindow ? my_subwindow : stdscr) #endif #if !defined(GetChar) && defined(SNAKE) #define GetChar() wgetch(stdscr) #endif #if !defined(GetChar) && defined(VMS) #define GetChar() ttgetc() #endif #if !defined(GetChar) #if HAVE_KEYPAD #define GetChar getch #else #ifndef USE_GETCHAR #define USE_GETCHAR #endif /* !USE_GETCHAR */ #define GetChar() getchar() /* used to be "getc(stdin)" and "getch()" */ #endif /* HAVE_KEYPAD */ #endif /* !defined(GetChar) */ #if defined(NCURSES) /* * Workaround a bug in ncurses order-of-refresh by setting a pointer to * the topmost window that should be displayed. */ PRIVATE WINDOW *my_subwindow; PUBLIC void LYsubwindow ARGS1(WINDOW *, param) { my_subwindow = param; } #endif #ifdef USE_SLANG_MOUSE PRIVATE int sl_parse_mouse_event ARGS3(int *, x, int *, y, int *, button) { /* "ESC [ M" has already been processed. There more characters are * expected: BUTTON X Y */ *button = SLang_getkey (); switch (*button) { case 040: /* left button */ case 041: /* middle button */ case 042: /* right button */ *button -= 040; break; default: /* Hmmm.... */ SLang_flush_input (); return -1; } *x = SLang_getkey () - 33; *y = SLang_getkey () - 33; return 0; } #endif #if defined(USE_SLANG_MOUSE) || defined(NCURSES_MOUSE_VERSION) PRIVATE int map_function_to_key ARGS1(char, keysym) { int i; /* I would prefer to use sizeof keymap but its size is not available. * A better method would be to declare it as some fixed size. */ for (i = 1; i < 256; i++) { if (keymap[i] == keysym) return i - 1; } return -1; } #endif PRIVATE BOOLEAN csi_is_csi = TRUE; PUBLIC void ena_csi ARGS1( BOOLEAN, flag) { csi_is_csi = flag; } /* * LYgetch() translates some escape sequences and may fake noecho. */ PUBLIC int LYgetch NOARGS { int a, b, c, d = -1; #if defined(IGNORE_CTRL_C) || defined(USE_GETCHAR) || !defined(NCURSES) re_read: #endif /* IGNORE_CTRL_C || USE_GETCHAR */ #ifndef USE_SLANG clearerr(stdin); /* needed here for ultrix and SOCKETSHR, but why? - FM */ #endif /* !USE_SLANG */ #if !defined(USE_SLANG) || defined(VMS) c = GetChar(); #else if (LYCursesON) { c = GetChar(); } else { c = getchar(); if (c == EOF && errno == EINTR) /* Ctrl-Z causes EINTR in getchar() */ clearerr(stdin); if (feof(stdin) || ferror(stdin) || c == EOF) { #ifdef IGNORE_CTRL_C if (sigint) sigint = FALSE; #endif /* IGNORE_CTRL_C */ return(7); /* use ^G to cancel whatever called us. */ } } #endif /* !USE_SLANG || VMS */ #ifdef RAWDOSKEYHACK if (raw_dos_key_hack) { if (c == 0) c = '/'; if (c > 255) { /* handle raw dos keys */ switch (c) { case 464: c = '-'; break; /* keypad minus*/ case 465: c = '+'; break; /* keypad plus*/ case 459: c = 13; break; /* keypad enter*/ case 463: c = '*'; break; /* keypad * */ case 440: c = 'Q'; break; /* alt x */ case 265: c = 'H'; break; /* F1 */ default: break; } } } #endif /* RAWDOSKEYHACK */ #ifdef USE_GETCHAR if (c == EOF && errno == EINTR) /* Ctrl-Z causes EINTR in getchar() */ goto re_read; #endif /* USE_GETCHAR */ #ifdef USE_SLANG if (c == 0xFFFF && LYCursesON) { #ifdef IGNORE_CTRL_C if (sigint) { sigint = FALSE; goto re_read; } #endif /* IGNORE_CTRL_C */ return(7); /* use ^G to cancel whatever called us. */ } #else if (feof(stdin) || ferror(stdin) || c == EOF) { if (recent_sizechange) return(7); /* use ^G to cancel whatever called us. */ #ifdef IGNORE_CTRL_C if (sigint) { sigint = FALSE; /* clearerr(stdin); don't need here if stays above - FM */ goto re_read; } #endif /* IGNORE_CTRL_C */ #if !defined(USE_GETCHAR) && !defined(VMS) && !defined(NCURSES) if (c == ERR && errno == EINTR) /* may have been handled signal - kw */ goto re_read; #endif /* USE_GETCHAR */ cleanup(); #ifndef NOSIGHUP (void) signal(SIGHUP, SIG_DFL); #endif /* NOSIGHUP */ (void) signal(SIGTERM, SIG_DFL); #ifndef VMS (void) signal(SIGINT, SIG_DFL); #endif /* !VMS */ #ifdef SIGTSTP if (no_suspend) (void) signal(SIGTSTP,SIG_DFL); #endif /* SIGTSTP */ exit(0); } #endif /* USE_SLANG */ if (c == 27 || (csi_is_csi && c == 155)) { /* handle escape sequence */ b = GetChar(); if (b == '[' || b == 'O') { a = GetChar(); } else { a = b; } switch (a) { case 'A': c = UPARROW; break; case 'x': c = UPARROW; break; /* keypad up on pc ncsa telnet */ case 'B': c = DNARROW; break; case 'r': c = DNARROW; break; /* keypad down on pc ncsa telnet */ case 'C': c = RTARROW; break; case 'v': c = RTARROW; break; /* keypad right on pc ncsa telnet */ case 'D': c = LTARROW; break; case 't': c = LTARROW; break; /* keypad left on pc ncsa telnet */ case 'y': c = PGUP; break; /* keypad on pc ncsa telnet */ case 's': c = PGDOWN; break; /* keypad on pc ncsa telnet */ case 'w': c = HOME; break; /* keypad on pc ncsa telnet */ case 'q': c = END; break; /* keypad on pc ncsa telnet */ case 'M': #ifdef USE_SLANG_MOUSE if ((c == 27) && (b == '[')) { int mouse_x, mouse_y, button; mouse_link = -1; c = -1; if (-1 != sl_parse_mouse_event (&mouse_x, &mouse_y, &button)) { if (button == 0) /* left */ c = set_clicked_link (mouse_x, mouse_y); else if (button == 2) /* right */ { /* Right button: go back to prev document. * The problem is that we need to determine * what to return to achieve this. */ c = map_function_to_key (LYK_PREV_DOC); } } } else #endif c = '\n'; /* keypad enter on pc ncsa telnet */ break; case 'm': #ifdef VMS if (b != 'O') #endif /* VMS */ c = '-'; /* keypad on pc ncsa telnet */ break; case 'k': if (b == 'O') c = '+'; /* keypad + on my xterminal :) */ break; case 'l': #ifdef VMS if (b != 'O') #endif /* VMS */ c = '+'; /* keypad on pc ncsa telnet */ break; case 'P': #ifdef VMS if (b != 'O') #endif /* VMS */ c = F1; break; case 'u': #ifdef VMS if (b != 'O') #endif /* VMS */ c = F1; /* macintosh help button */ break; case 'p': #ifdef VMS if (b == 'O') #endif /* VMS */ c = '0'; /* keypad 0 */ break; case '1': /** VTxxx Find **/ if ((b == '[' || c == 155) && (d=GetChar()) == '~') c = FIND_KEY; break; case '2': if (b == '[' || c == 155) { if ((d=GetChar())=='~') /** VTxxx Insert **/ c = INSERT_KEY; else if ((d == '8' || d == '9') && GetChar() == '~') { if (d == '8') /** VTxxx Help **/ c = F1; else if (d == '9') /** VTxxx Do **/ c = DO_KEY; d = -1; } } break; case '3': /** VTxxx Delete **/ if ((b == '[' || c == 155) && (d=GetChar()) == '~') c = REMOVE_KEY; break; case '4': /** VTxxx Select **/ if ((b == '[' || c == 155) && (d=GetChar()) == '~') c = SELECT_KEY; break; case '5': /** VTxxx PrevScreen **/ if ((b == '[' || c == 155) && (d=GetChar()) == '~') c = PGUP; break; case '6': /** VTxxx NextScreen **/ if ((b == '[' || c == 155) && (d=GetChar()) == '~') c = PGDOWN; break; case '[': /** Linux F1-F5: ^[[[A etc. **/ if (b == '[' || c == 155) { if ((d=GetChar()) == 'A') c = F1; break; } default: if (TRACE) { fprintf(stderr,"Unknown key sequence: %d:%d:%d\n",c,b,a); if (!LYTraceLogFP) { sleep(MessageSecs); } } } if (isdigit(a) && (b == '[' || c == 155) && d != -1 && d != '~') d = GetChar(); } #if HAVE_KEYPAD else { /* * Convert keypad() mode keys into Lynx defined keys. */ switch(c) { case KEY_DOWN: /* The four arrow keys ... */ c = DNARROW; break; case KEY_UP: c = UPARROW; break; case KEY_LEFT: c = LTARROW; break; case KEY_RIGHT: /* ... */ c = RTARROW; break; case KEY_HOME: /* Home key (upward+left arrow) */ c = HOME; break; case KEY_CLEAR: /* Clear screen */ c = 18; /* CTRL-R */ break; case KEY_NPAGE: /* Next page */ c = PGDOWN; break; case KEY_PPAGE: /* Previous page */ c = PGUP; break; case KEY_LL: /* home down or bottom (lower left) */ c = END; break; /* The keypad is arranged like this:*/ /* a1 up a3 */ /* left b2 right */ /* c1 down c3 */ case KEY_A1: /* upper left of keypad */ c = HOME; break; case KEY_A3: /* upper right of keypad */ c = PGUP; break; case KEY_B2: /* center of keypad */ c = DO_NOTHING; break; case KEY_C1: /* lower left of keypad */ c = END; break; case KEY_C3: /* lower right of keypad */ c = PGDOWN; break; #ifdef KEY_END case KEY_END: /* end key 001 */ c = END; break; #endif /* KEY_END */ #ifdef KEY_HELP case KEY_HELP: /* help key 001 */ c = F1; break; #endif /* KEY_HELP */ #ifdef KEY_BACKSPACE case KEY_BACKSPACE: c = 127; /* backspace key (delete, not Ctrl-H) */ break; #endif /* KEY_BACKSPACE */ #ifdef KEY_F case KEY_F(1): c = F1; /* VTxxx Help */ break; case KEY_F(16): c = DO_KEY; /* VTxxx Do */ break; #endif /* KEY_F */ #ifdef KEY_REDO case KEY_REDO: /* VTxxx Do */ c = DO_KEY; break; #endif /* KEY_REDO */ #ifdef KEY_FIND case KEY_FIND: c = FIND_KEY; /* VTxxx Find */ break; #endif /* KEY_FIND */ #ifdef KEY_SELECT case KEY_SELECT: c = SELECT_KEY; /* VTxxx Select */ break; #endif /* KEY_SELECT */ #ifdef KEY_IC case KEY_IC: c = INSERT_KEY; /* VTxxx Insert */ break; #endif /* KEY_IC */ #ifdef KEY_DC case KEY_DC: c = REMOVE_KEY; /* VTxxx Remove */ break; #endif /* KEY_DC */ #ifdef NCURSES_MOUSE_VERSION case KEY_MOUSE: { #ifndef DOSPATH MEVENT event; int err; c = -1; mouse_link = -1; err=getmouse(&event); if (event.bstate & BUTTON1_CLICKED) { c = set_clicked_link(event.x, event.y); } else if (event.bstate & BUTTON3_CLICKED) { c = map_function_to_key (LYK_PREV_DOC); } #else /* pdcurses version */ int left,right; /* yes, I am assuming that my screen will be a certain width. */ left = 6; right = LYcols-6; c = -1; mouse_link = -1; request_mouse_pos(); if (Mouse_status.button[0] & BUTTON_CLICKED) { if (Mouse_status.y == (LYlines-1)) if (Mouse_status.x < left) c=LTARROW; else if (Mouse_status.x > right) c='\b'; else c=PGDOWN; else if (Mouse_status.y == 0) if (Mouse_status.x < left) c=LTARROW; else if (Mouse_status.x > right) c='\b'; else c=PGUP; else c = set_clicked_link(Mouse_status.x, Mouse_status.y); } #endif /* _WINDOWS */ } break; #endif /* NCURSES_MOUSE_VERSION */ } } #endif /* HAVE_KEYPAD */ if (c > DO_NOTHING) { /* * Don't return raw values for KEYPAD symbols which we may have * missed in the switch above if they are obviously invalid when * used as an index into (e.g.) keypad[]. - KW */ return (0); } else { return(c); } } /* ** Display the current value of the string and allow the user ** to edit it. */ #define EDREC EditFieldData /* * Shorthand to get rid of all most of the "edit->suchandsos". */ #define Buf edit->buffer #define Pos edit->pos #define StrLen edit->strlen #define MaxLen edit->maxlen #define DspWdth edit->dspwdth #define DspStart edit->xpan #define Margin edit->margin PUBLIC void LYSetupEdit ARGS4( EDREC *, edit, char *, old, int, maxstr, int, maxdsp) { /* * Initialize edit record */ LYGetYX(edit->sy, edit->sx); edit->pad = ' '; edit->dirty = TRUE; edit->panon = FALSE; StrLen = strlen(old); MaxLen = maxstr; DspWdth = maxdsp; Margin = 0; Pos = strlen(old); DspStart = 0; if (maxstr > maxdsp) { /* Need panning? */ if (DspWdth > 4) /* Else "{}" take up precious screen space */ edit->panon = TRUE; /* * Figure out margins. If too big, we do a lot of unnecessary * scrolling. If too small, user doesn't have sufficient * look-ahead. Let's say 25% for each margin, upper bound is * 10 columns. */ Margin = DspWdth/4; if (Margin > 10) Margin = 10; } /* * We expect the called function to pass us a default (old) value * with a length that is less than or equal to maxstr, and to * handle any messaging associated with actions to achieve that * requirement. However, in case the calling function screwed * up, we'll check it here, and ensure that no buffer overrun can * occur by loading only as much of the head as fits. - FM */ if (strlen(old) >= maxstr) { strncpy(edit->buffer, old, maxstr); edit->buffer[maxstr] = '\0'; StrLen = maxstr; } else { strcpy(edit->buffer, old); } } PUBLIC int LYEdit1 ARGS4( EDREC *, edit, int, ch, int, action, BOOL, maxMessage) { /* returns 0 character processed * ch otherwise */ int i; int length; if (MaxLen <= 0) return(0); /* Be defensive */ length=strlen(&Buf[0]); StrLen = length; switch (action) { case LYE_AIX: /* * Hex 97. * Fall through as a character for CJK, or if this is a valid * character in the current display character set. * Otherwise, we treat this as LYE_ENTER. */ if (HTCJK == NOCJK && LYlowest_eightbit[current_char_set] > 0x97) return(ch); case LYE_CHAR: /* * ch is printable or ISO-8859-1 escape character. */ if (Pos <= (MaxLen) && StrLen < (MaxLen)) { for(i = length; i >= Pos; i--) /* Make room */ Buf[i+1] = Buf[i]; Buf[length+1]='\0'; Buf[Pos] = (unsigned char) ch; Pos++; } else if (maxMessage) { _statusline(MAXLEN_REACHED_DEL_OR_MOV); } break; case LYE_BACKW: /* * Backword. * Definition of word is very naive: 1 or more a/n characters. */ while (Pos && !isalnum(Buf[Pos-1])) Pos--; while (Pos && isalnum(Buf[Pos-1])) Pos--; break; case LYE_FORWW: /* * Word forward. */ while (isalnum(Buf[Pos])) Pos++; /* '\0' is not a/n */ while (!isalnum(Buf[Pos]) && Buf[Pos]) Pos++ ; break; case LYE_ERASE: /* * Erase the line to start fresh. */ Buf[0] = '\0'; /* fall through */ case LYE_BOL: /* * Go to first column. */ Pos = 0; break; case LYE_EOL: /* * Go to last column. */ Pos = length; break; case LYE_DELNW: /* * Delete next word. */ { int pos0 = Pos; LYEdit1 (edit, 0, LYE_FORWW, FALSE); while (Pos > pos0) LYEdit1(edit, 0, LYE_DELP, FALSE); } break; case LYE_DELPW: /* * Delete previous word. */ { int pos0 = Pos; LYEdit1 (edit, 0, LYE_BACKW, FALSE); pos0 -= Pos; while (pos0--) LYEdit1(edit, 0, LYE_DELN, FALSE); } break; case LYE_DELN: /* * Delete next character */ if (Pos >= length) break; Pos++; /* fall through */ case LYE_DELP: /* * Delete preceding character. */ if (length == 0 || Pos == 0) break; Pos--; for (i = Pos; i < length; i++) Buf[i] = Buf[i+1]; i--; Buf[i] = 0; break; case LYE_DELC: /* * Delete current character. */ if (length == 0 || Pos == length) break; for (i = Pos; i < length; i++) Buf[i] = Buf[i+1]; i--; Buf[i] = 0; break; case LYE_FORW: /* * Move cursor to the right. */ if (Pos < length) Pos++; break; case LYE_BACK: /* * Left-arrow move cursor to the left. */ if (Pos > 0) Pos--; break; case LYE_UPPER: for (i = 0; Buf[i]; i++) Buf[i] = TOUPPER(Buf[i]); break; case LYE_LOWER: for (i = 0; Buf[i]; i++) Buf[i] = TOLOWER(Buf[i]); break; default: return(ch); } edit->dirty = TRUE; StrLen = strlen(&Buf[0]); return(0); } PUBLIC void LYRefreshEdit ARGS1( EDREC *, edit) { int i; int length; int nrdisplayed; int padsize; char *str; char buffer[3]; buffer[0] = buffer[1] = buffer[2] = '\0'; if (!edit->dirty || (DspWdth == 0)) return; edit->dirty = FALSE; length=strlen(&Buf[0]); edit->strlen = length; /* * Now we have: * .--DspWdth---. * +---------+=============+-----------+ * | |M M| | (M=margin) * +---------+=============+-----------+ * 0 DspStart length * * Insertion point can be anywhere between 0 and stringlength. * Figure out new display starting point. * * The first "if" below makes Lynx scroll several columns at a time when * extending the string. Looks awful, but that way we can keep up with * data entry at low baudrates. */ if ((DspStart + DspWdth) <= length) if (Pos >= (DspStart + DspWdth) - Margin) DspStart=(Pos - DspWdth) + Margin; if (Pos < DspStart + Margin) { DspStart = Pos - Margin; if (DspStart < 0) DspStart = 0; } str = &Buf[DspStart]; nrdisplayed = length-DspStart; if (nrdisplayed > DspWdth) nrdisplayed = DspWdth; move(edit->sy, edit->sx); if (edit->hidden) { for (i = 0; i < nrdisplayed; i++) addch('*'); } else { for (i = 0; i < nrdisplayed; i++) if ((buffer[0] = str[i]) == 1 || buffer[0] == 2 || ((unsigned char)buffer[0] == 160 && !(HTPassHighCtrlRaw || HTCJK != NOCJK || (LYCharSet_UC[current_char_set].enc != UCT_ENC_8859 && !(LYCharSet_UC[current_char_set].like8859 & UCT_R_8859SPECL))))) { addch(' '); } else { /* For CJK strings, by Masanobu Kimura */ if (HTCJK != NOCJK && !isascii(buffer[0])) { if (i < (nrdisplayed - 1)) buffer[1] = str[++i]; addstr(buffer); buffer[1] = '\0'; } else { addstr(buffer); } } } /* * Erase rest of input area. */ padsize = DspWdth-nrdisplayed; while (padsize--) addch((unsigned char)edit->pad); /* * Scrolling indicators. */ if (edit->panon) { if ((DspStart + nrdisplayed) < length) { move(edit->sy, edit->sx+nrdisplayed-1); addch('}'); } if (DspStart) { move(edit->sy, edit->sx); addch('{'); } } move(edit->sy, edit->sx + Pos - DspStart); refresh(); } PUBLIC int LYgetstr ARGS4( char *, inputline, int, hidden, size_t, bufsize, int, recall) { int x, y, MaxStringSize; int ch; EditFieldData MyEdit; LYGetYX(y, x); /* Use screen from cursor position to eol */ MaxStringSize = (bufsize < sizeof(MyEdit.buffer)) ? (bufsize - 1) : (sizeof(MyEdit.buffer) - 1); LYSetupEdit(&MyEdit, inputline, MaxStringSize, (LYcols-1)-x); MyEdit.hidden = hidden ; for (;;) { again: LYRefreshEdit(&MyEdit); ch = LYgetch(); #ifdef VMS if (term_letter || term_options || term_message || HadVMSInterrupt) { HadVMSInterrupt = FALSE; ch = 7; } #else if (term_letter || term_options || term_message) ch = 7; #endif /* VMS */ if (recall && (ch == UPARROW || ch == DNARROW)) { strcpy(inputline, MyEdit.buffer); return(ch); } if (keymap[ch + 1] == LYK_REFRESH) goto again; switch (EditBinding(ch)) { case LYE_TAB: ch = '\t'; /* fall through */ case LYE_AIX: /* * Hex 97. * Treat as a character for CJK, or if this is a valid * character in the current display character set. * Otherwise, we treat this as LYE_ENTER. */ if (ch != '\t' && (HTCJK != NOCJK || LYlowest_eightbit[current_char_set] <= 0x97)) { LYLineEdit(&MyEdit,ch, FALSE); break; } case LYE_ENTER: /* * Terminate the string and return. */ strcpy(inputline, MyEdit.buffer); return(ch); break; case LYE_ABORT: /* * Control-C or Control-G aborts. */ inputline[0] = '\0'; return(-1); break; case LYE_LKCMD: /* * Used only in form_getstr() for invoking * the LYK_F_LINK_NUM prompt when in form * text fields. - FM */ break; default: LYLineEdit(&MyEdit, ch, FALSE); } } } /* * LYstrstr will find the first occurrence of the string * pointed to by tarptr in the string pointed to by chptr. * It returns NULL if string not found. * It is a case insensitive search. */ PUBLIC char * LYstrstr ARGS2( char *, chptr, char *, tarptr) { int len = strlen(tarptr); for(; *chptr != '\0'; chptr++) { if (0 == UPPER8(*chptr, *tarptr)) { if (0 == strncasecomp8(chptr+1, tarptr+1, len-1)) return(chptr); } } /* end for */ return(NULL); /* string not found or initial chptr was empty */ } /* * LYno_attr_char_case_strstr will find the first occurrence of the * string pointed to by tarptr in the string pointed to by chptr. * It ignores the characters: LY_UNDERLINE_START_CHAR and * LY_UNDERLINE_END_CHAR * LY_BOLD_START_CHAR * LY_BOLD_END_CHAR * LY_SOFT_HYPHEN * if present in chptr. * It is a case insensitive search. */ PUBLIC char * LYno_attr_char_case_strstr ARGS2( char *, chptr, char *, tarptr) { register char *tmpchptr, *tmptarptr; if (!chptr) return(NULL); while (IsSpecialAttrChar(*chptr) && *chptr != '\0') chptr++; for (; *chptr != '\0'; chptr++) { if (0 == UPPER8(*chptr, *tarptr)) { /* * See if they line up. */ tmpchptr = chptr+1; tmptarptr = tarptr+1; if (*tmptarptr == '\0') /* one char target */ return(chptr); while (1) { if (!IsSpecialAttrChar(*tmpchptr)) { if (0 != UPPER8(*tmpchptr, *tmptarptr)) break; tmpchptr++; tmptarptr++; } else { tmpchptr++; } if (*tmptarptr == '\0') return(chptr); if (*tmpchptr == '\0') break; } } } /* end for */ return(NULL); } /* * LYno_attr_char_strstr will find the first occurrence of the * string pointed to by tarptr in the string pointed to by chptr. * It ignores the characters: LY_UNDERLINE_START_CHAR and * LY_UNDERLINE_END_CHAR * LY_BOLD_START_CHAR * LY_BOLD_END_CHAR * LY_SOFT_HYPHEN * if present in chptr. * It is a case sensitive search. */ PUBLIC char * LYno_attr_char_strstr ARGS2( char *, chptr, char *, tarptr) { register char *tmpchptr, *tmptarptr; if (!chptr) return(NULL); while (IsSpecialAttrChar(*chptr) && *chptr != '\0') chptr++; for (; *chptr != '\0'; chptr++) { if ((*chptr) == (*tarptr)) { /* * See if they line up. */ tmpchptr = chptr + 1; tmptarptr = tarptr + 1; if (*tmptarptr == '\0') /* one char target */ return(chptr); while (1) { if (!IsSpecialAttrChar(*tmpchptr)) { if ((*tmpchptr) != (*tmptarptr)) break; tmpchptr++; tmptarptr++; } else { tmpchptr++; } if (*tmptarptr == '\0') return(chptr); if (*tmpchptr == '\0') break; } } } /* end for */ return(NULL); } /* * LYno_attr_mbcs_case_strstr will find the first occurrence of the string * pointed to by tarptr in the string pointed to by chptr. * It takes account of MultiByte Character Sequences (UTF8). * The physical length of the displayed string up to the end of the target * string is returned in *nendp if the search is successful. * It ignores the characters: LY_UNDERLINE_START_CHAR and * LY_UNDERLINE_END_CHAR * LY_BOLD_START_CHAR * LY_BOLD_END_CHAR * LY_SOFT_HYPHEN * if present in chptr. * It assumes UTF8 if utf_flag is set. * It is a case insensitive search. - KW & FM */ PUBLIC char * LYno_attr_mbcs_case_strstr ARGS5( char *, chptr, char *, tarptr, BOOL, utf_flag, int *, nstartp, int *, nendp) { register char *tmpchptr, *tmptarptr; int len = 0; int offset; if (!(chptr && tarptr)) return(NULL); /* * Skip initial IsSpecial chars. - FM */ while (IsSpecialAttrChar(*chptr) && *chptr != '\0') chptr++; /* * Seek a first target match. - FM */ for (; *chptr != '\0'; chptr++) { if ((!utf_flag && HTCJK != NOCJK && !isascii(*chptr) && *chptr == *tarptr && *(chptr + 1) != '\0' && !IsSpecialAttrChar(*(chptr + 1))) || (0 == UPPER8(*chptr, *tarptr))) { int tarlen = 0; offset = len; len++; /* * See if they line up. */ tmpchptr = (chptr + 1); tmptarptr = (tarptr + 1); if (*tmptarptr == '\0') { /* * One char target. */ *nstartp = offset; *nendp = len; return(chptr); } if (!utf_flag && HTCJK != NOCJK && !isascii(*chptr) && *chptr == *tarptr && *tmpchptr != '\0' && !IsSpecialAttrChar(*tmpchptr)) { /* * Check the CJK multibyte. - FM */ if (*tmpchptr == *tmptarptr) { /* * It's a match. Advance to next char. - FM */ tmpchptr++; tmptarptr++; if (*tmptarptr == '\0') { /* * One character match. - FM */ *nstartp = offset; *nendp = len + tarlen; return(chptr); } tarlen++; } else { /* * It's not a match, so go back to * seeking a first target match. - FM */ chptr++; continue; } } /* * See if the rest of the target matches. - FM */ while (1) { if (!IsSpecialAttrChar(*tmpchptr)) { if (!utf_flag && HTCJK != NOCJK && !isascii(*tmpchptr)) { if (*tmpchptr == *tmptarptr && *(tmpchptr + 1) == *(tmptarptr + 1) && !IsSpecialAttrChar(*(tmpchptr + 1))) { tmpchptr++; tmptarptr++; } else { break; } } else if (0 != UPPER8(*tmpchptr, *tmptarptr)) { break; } if (!IS_UTF_EXTRA(*tmptarptr)) { tarlen++; } tmpchptr++; tmptarptr++; } else { tmpchptr++; } if (*tmptarptr == '\0') { *nstartp = offset; *nendp = len + tarlen; return(chptr); } if (*tmpchptr == '\0') { break; } } } else if (!(IS_UTF_EXTRA(*chptr) || IsSpecialAttrChar(*chptr))) { if (!utf_flag && HTCJK != NOCJK && !isascii(*chptr) && *(chptr + 1) != '\0' && !IsSpecialAttrChar(*(chptr + 1))) { chptr++; } len++; } } /* end for */ return(NULL); } /* * LYno_attr_mbcs_strstr will find the first occurrence of the string * pointed to by tarptr in the string pointed to by chptr. * It takes account of CJK and MultiByte Character Sequences (UTF8). * The physical lengths of the displayed string up to the start and * end of the target string are returned in *nstartp and *nendp if * the search is successful. * It ignores the characters: LY_UNDERLINE_START_CHAR and * LY_UNDERLINE_END_CHAR * LY_BOLD_START_CHAR * LY_BOLD_END_CHAR * LY_SOFT_HYPHEN * if present in chptr. * It assumes UTF8 if utf_flag is set. * It is a case sensitive search. - KW & FM */ PUBLIC char * LYno_attr_mbcs_strstr ARGS5( char *, chptr, char *, tarptr, BOOL, utf_flag, int *, nstartp, int *, nendp) { register char *tmpchptr, *tmptarptr; int len = 0; int offset; if (!(chptr && tarptr)) return(NULL); /* * Skip initial IsSpecial chars. - FM */ while (IsSpecialAttrChar(*chptr) && *chptr != '\0') chptr++; /* * Seek a first target match. - FM */ for (; *chptr != '\0'; chptr++) { if ((*chptr) == (*tarptr)) { int tarlen = 0; offset = len; len++; /* * See if they line up. */ tmpchptr = (chptr + 1); tmptarptr = (tarptr + 1); if (*tmptarptr == '\0') { /* * One char target. */ *nstartp = offset; *nendp = len + 1; return(chptr); } if (!utf_flag && HTCJK != NOCJK && !isascii(*chptr) && *tmpchptr != '\0' && !IsSpecialAttrChar(*tmpchptr)) { /* * Check the CJK multibyte. - FM */ if (*tmpchptr == *tmptarptr) { /* * It's a match. Advance to next char. - FM */ tmpchptr++; tmptarptr++; if (*tmptarptr == '\0') { /* * One character match. - FM */ *nstartp = offset; *nendp = len + tarlen; return(chptr); } tarlen++; } else { /* * It's not a match, so go back to * seeking a first target match. - FM */ chptr++; continue; } } /* * See if the rest of the target matches. - FM */ while (1) { if (!IsSpecialAttrChar(*tmpchptr)) { if (!utf_flag && HTCJK != NOCJK && !isascii(*tmpchptr)) { if (*tmpchptr == *tmptarptr && *(tmpchptr + 1) == *(tmptarptr + 1) && !IsSpecialAttrChar(*(tmpchptr + 1))) { tmpchptr++; tmptarptr++; } else { break; } } else if ((*tmpchptr) != (*tmptarptr)) { break; } if (!IS_UTF_EXTRA(*tmptarptr)) { tarlen++; } tmpchptr++; tmptarptr++; } else { tmpchptr++; } if (*tmptarptr == '\0') { *nstartp = offset; *nendp = len + tarlen; return(chptr); } if (*tmpchptr == '\0') { break; } } } else if (!(IS_UTF_EXTRA(*chptr) || IsSpecialAttrChar(*chptr))) { if (!utf_flag && HTCJK != NOCJK && !isascii(*chptr) && *(chptr + 1) != '\0' && !IsSpecialAttrChar(*(chptr + 1))) { chptr++; } len++; } } /* end for */ return(NULL); } /* * Allocate a new copy of a string, and returns it. */ PUBLIC char * SNACopy ARGS3( char **, dest, CONST char *, src, int, n) { FREE(*dest); if (src) { *dest = (char *)calloc(1, n + 1); if (*dest == NULL) { if (TRACE) fprintf(stderr, "Tried to calloc %d bytes\n", n); outofmem(__FILE__, "SNACopy"); } strncpy (*dest, src, n); *(*dest + n) = '\0'; /* terminate */ } return *dest; } /* * String Allocate and Concatenate. */ PUBLIC char * SNACat ARGS3( char **, dest, CONST char *, src, int, n) { if (src && *src) { if (*dest) { int length = strlen(*dest); *dest = (char *)realloc(*dest, length + n + 1); if (*dest == NULL) outofmem(__FILE__, "SNACat"); strncpy(*dest + length, src, n); *(*dest + length + n) = '\0'; /* terminate */ } else { *dest = (char *)calloc(1, strlen(src) + 1); if (*dest == NULL) outofmem(__FILE__, "SNACat"); strncpy(*dest, src, n); *dest[n] = '\0'; /* terminate */ } } return *dest; } /* ** UPPER8 ? ** it was "TOUPPER(a) - TOUPPER(b)" in its previous life... ** ** It was realized that case-insensitive user search ** got information about upper/lower mapping from TOUPPER ** (precisely from "(TOUPPER(a) - TOUPPER(b))==0"). ** This function depends on locale in its 8bit mapping ** and usually fails with DOS/WINDOWS display charsets ** as well as on non-UNIX systems. ** ** We extend this function for 8bit letters ** using Lynx internal chartrans feature: ** we assume that upper/lower case letters ** have their "7bit approximation" images (in def7_uni.tbl) ** matched case-insensitive (7bit). ** ** By this technique we automatically cover *any* charset ** known for Lynx chartrans and need no any extra information for it. ** ** The cost of this assumption is that several differently accented letters ** may be interpreted as equal, but this side effect is negligible ** if the user search string is more than one character long. - LP ** ** We enable new technique only if DisplayCharsetMatchLocale = FALSE ** (see description in LYCharSets.c) */ PUBLIC int UPPER8 ARGS2(int,ch1, int,ch2) { /* case-insensitive match for us-ascii */ if ((unsigned char)ch1 < 128 && (unsigned char)ch2 < 128) return(TOUPPER(ch1) - TOUPPER(ch2)); /* case-insensitive match for upper half */ if ((unsigned char)ch1 > 127 && (unsigned char)ch2 >127) { if (DisplayCharsetMatchLocale) return(TOUPPER(ch1) - TOUPPER(ch2)); /* old-style */ else { /* compare "7bit approximation" for letters >127 */ /* BTW, if we remove the check for >127 above */ /* we get even more "relaxed" insensitive match... */ CONST char *disp_charset = LYCharSet_UC[current_char_set].MIMEname; int charset_in, charset_out, uck1, uck2; char replace_buf1 [10], replace_buf2 [10]; charset_in = UCGetLYhndl_byMIME(disp_charset); charset_out = UCGetLYhndl_byMIME("us-ascii"); uck1 = UCTransCharStr(replace_buf1, sizeof(replace_buf1), ch1, charset_in, charset_out, YES); uck2 = UCTransCharStr(replace_buf2, sizeof(replace_buf2), ch2, charset_in, charset_out, YES); if ((uck1 > 0) && (uck2 > 0)) /* both replacement strings found */ return (strcasecomp(replace_buf1, replace_buf2)); /* check to be sure we have not lost any strange characters */ /* which are not found in def7_uni.tbl but _equal_ in fact. */ /* this also applied for "x-transparent" display mode. */ if ((unsigned char)ch1==(unsigned char)ch2) return(0); /* match */ } } return(-10); /* mismatch, if we come to here */ }