/* $OpenBSD: lib_tputs.c,v 1.12 2010/01/12 23:22:06 nicm Exp $ */ /**************************************************************************** * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* * tputs.c * delay_output() * _nc_outch() * tputs() * */ #include #include #include /* padding_baud_rate, xon_xoff */ #include /* ospeed */ #include MODULE_ID("$Id: lib_tputs.c,v 1.12 2010/01/12 23:22:06 nicm Exp $") NCURSES_EXPORT_VAR(char) PC = 0; /* used by termcap library */ NCURSES_EXPORT_VAR(NCURSES_OSPEED) ospeed = 0; /* used by termcap library */ NCURSES_EXPORT_VAR(int) _nc_nulls_sent = 0; /* used by 'tack' program */ #if NCURSES_NO_PADDING NCURSES_EXPORT(void) _nc_set_no_padding(SCREEN *sp) { bool no_padding = (getenv("NCURSES_NO_PADDING") != 0); if (sp) sp->_no_padding = no_padding; else _nc_prescreen._no_padding = no_padding; TR(TRACE_CHARPUT | TRACE_MOVE, ("padding will%s be used", GetNoPadding(sp) ? " not" : "")); } #endif static int (*my_outch) (int c) = _nc_outch; NCURSES_EXPORT(int) delay_output(int ms) { T((T_CALLED("delay_output(%d)"), ms)); if (no_pad_char) { _nc_flush(); napms(ms); } else { register int nullcount; nullcount = (ms * _nc_baudrate(ospeed)) / (BAUDBYTE * 1000); for (_nc_nulls_sent += nullcount; nullcount > 0; nullcount--) my_outch(PC); if (my_outch == _nc_outch) _nc_flush(); } returnCode(OK); } NCURSES_EXPORT(void) _nc_flush(void) { (void) fflush(NC_OUTPUT); } NCURSES_EXPORT(int) _nc_outch(int ch) { COUNT_OUTCHARS(1); if (SP != 0 && SP->_cleanup) { char tmp = ch; /* * POSIX says write() is safe in a signal handler, but the * buffered I/O is not. */ write(fileno(NC_OUTPUT), &tmp, 1); } else { putc(ch, NC_OUTPUT); } return OK; } NCURSES_EXPORT(int) putp(const char *string) { return tputs(string, 1, _nc_outch); } NCURSES_EXPORT(int) tputs(const char *string, int affcnt, int (*outc) (int)) { bool always_delay; bool normal_delay; int number; #if BSD_TPUTS int trailpad; #endif /* BSD_TPUTS */ #ifdef TRACE char addrbuf[32]; if (USE_TRACEF(TRACE_TPUTS)) { if (outc == _nc_outch) (void) strlcpy(addrbuf, "_nc_outch", sizeof(addrbuf)); else (void) snprintf(addrbuf, sizeof(addrbuf), "%p", outc); if (_nc_tputs_trace) { _tracef("tputs(%s = %s, %d, %s) called", _nc_tputs_trace, _nc_visbuf(string), affcnt, addrbuf); } else { _tracef("tputs(%s, %d, %s) called", _nc_visbuf(string), affcnt, addrbuf); } TPUTS_TRACE(NULL); _nc_unlock_global(tracef); } #endif /* TRACE */ if (!VALID_STRING(string)) return ERR; if (cur_term == 0) { always_delay = FALSE; normal_delay = TRUE; } else { always_delay = (string == bell) || (string == flash_screen); normal_delay = !xon_xoff && padding_baud_rate #if NCURSES_NO_PADDING && !GetNoPadding(SP) #endif && (_nc_baudrate(ospeed) >= padding_baud_rate); } #if BSD_TPUTS /* * This ugly kluge deals with the fact that some ancient BSD programs * (like nethack) actually do the likes of tputs("50") to get delays. */ trailpad = 0; if (isdigit(UChar(*string))) { while (isdigit(UChar(*string))) { trailpad = trailpad * 10 + (*string - '0'); string++; } trailpad *= 10; if (*string == '.') { string++; if (isdigit(UChar(*string))) { trailpad += (*string - '0'); string++; } while (isdigit(UChar(*string))) string++; } if (*string == '*') { trailpad *= affcnt; string++; } } #endif /* BSD_TPUTS */ my_outch = outc; /* redirect delay_output() */ while (*string) { if (*string != '$') (*outc) (*string); else { string++; if (*string != '<') { (*outc) ('$'); if (*string) (*outc) (*string); } else { bool mandatory; string++; if ((!isdigit(UChar(*string)) && *string != '.') || !strchr(string, '>')) { (*outc) ('$'); (*outc) ('<'); continue; } number = 0; while (isdigit(UChar(*string))) { number = number * 10 + (*string - '0'); string++; } number *= 10; if (*string == '.') { string++; if (isdigit(UChar(*string))) { number += (*string - '0'); string++; } while (isdigit(UChar(*string))) string++; } mandatory = FALSE; while (*string == '*' || *string == '/') { if (*string == '*') { number *= affcnt; string++; } else { /* if (*string == '/') */ mandatory = TRUE; string++; } } if (number > 0 && (always_delay || normal_delay || mandatory)) delay_output(number / 10); } /* endelse (*string == '<') */ } /* endelse (*string == '$') */ if (*string == '\0') break; string++; } #if BSD_TPUTS /* * Emit any BSD-style prefix padding that we've accumulated now. */ if (trailpad > 0 && (always_delay || normal_delay)) delay_output(trailpad / 10); #endif /* BSD_TPUTS */ my_outch = _nc_outch; return OK; }