ncurses 5.2
[ncurses.git] / ncurses / tinfo / lib_tputs.c
index d3fd46276e6ef7a443b240eefa71f82e6ec01f71..93eebf88691f3528e140ed72d4ba4b8d9a3a546f 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ * Copyright (c) 1998,1999,2000 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            *
@@ -31,7 +31,6 @@
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  ****************************************************************************/
 
-
 /*
  *     tputs.c
  *             delay_output()
 
 #include <curses.priv.h>
 #include <ctype.h>
-#include <term.h>      /* padding_baud_rate, xon_xoff */
-#include <termcap.h>   /* ospeed */
+#include <term.h>              /* padding_baud_rate, xon_xoff */
+#include <termcap.h>           /* ospeed */
 #include <tic.h>
 
-MODULE_ID("$Id: lib_tputs.c,v 1.41 1999/10/22 23:31:24 tom Exp $")
+MODULE_ID("$Id: lib_tputs.c,v 1.51 2000/10/08 00:22:24 tom Exp $")
 
-char PC;               /* used by termcap library */
-speed_t ospeed;                /* used by termcap library */
+char PC = 0;                   /* used by termcap library */
+short ospeed = 0;              /* used by termcap library */
 
-int _nc_nulls_sent;    /* used by 'tack' program */
+int _nc_nulls_sent = 0;                /* used by 'tack' program */
 
-static int (*my_outch)(int c) = _nc_outch;
+static int (*my_outch) (int c) = _nc_outch;
 
-int delay_output(int ms)
+int
+delay_output(int ms)
 {
-       T((T_CALLED("delay_output(%d)"), ms));
+    T((T_CALLED("delay_output(%d)"), ms));
 
-       if (no_pad_char)
-               napms(ms);
-       else {
-               register int    nullcount;
+    if (no_pad_char) {
+       _nc_flush();
+       napms(ms);
+    } else {
+       register int nullcount;
 
-               nullcount = (ms * _nc_baudrate(ospeed)) / 10000;
-               for (_nc_nulls_sent += nullcount; nullcount > 0; nullcount--)
-                       my_outch(PC);
-               if (my_outch == _nc_outch)
-                       _nc_flush();
-       }
+       nullcount = (ms * _nc_baudrate(ospeed)) / 10000;
+       for (_nc_nulls_sent += nullcount; nullcount > 0; nullcount--)
+           my_outch(PC);
+       if (my_outch == _nc_outch)
+           _nc_flush();
+    }
 
-       returnCode(OK);
+    returnCode(OK);
 }
 
-int _nc_outch(int ch)
+void
+_nc_flush(void)
+{
+    (void) fflush(NC_OUTPUT);
+}
+
+int
+_nc_outch(int ch)
 {
 #ifdef TRACE
-       _nc_outchars++;
+    _nc_outchars++;
 #endif /* TRACE */
 
-       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;
+    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;
+}
+
+#if USE_WIDEC_SUPPORT
+/*
+ * Reference: The Unicode Standard 2.0
+ *
+ * No surrogates supported (we're storing only one 16-bit Unicode value per
+ * cell).
+ */
+int
+_nc_utf8_outch(int ch)
+{
+    static const unsigned byteMask = 0xBF;
+    static const unsigned otherMark = 0x80;
+    static const unsigned firstMark[] =
+    {0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC};
+
+    int result[7], *ptr;
+    int count = 0;
+
+    if ((unsigned int) ch < 0x80)
+       count = 1;
+    else if ((unsigned int) ch < 0x800)
+       count = 2;
+    else if ((unsigned int) ch < 0x10000)
+       count = 3;
+    else if ((unsigned int) ch < 0x200000)
+       count = 4;
+    else if ((unsigned int) ch < 0x4000000)
+       count = 5;
+    else if ((unsigned int) ch <= 0x7FFFFFFF)
+       count = 6;
+    else {
+       count = 3;
+       ch = 0xFFFD;
+    }
+    ptr = result + count;
+    switch (count) {
+    case 6:
+       *--ptr = (ch | otherMark) & byteMask;
+       ch >>= 6;
+       /* FALLTHRU */
+    case 5:
+       *--ptr = (ch | otherMark) & byteMask;
+       ch >>= 6;
+       /* FALLTHRU */
+    case 4:
+       *--ptr = (ch | otherMark) & byteMask;
+       ch >>= 6;
+       /* FALLTHRU */
+    case 3:
+       *--ptr = (ch | otherMark) & byteMask;
+       ch >>= 6;
+       /* FALLTHRU */
+    case 2:
+       *--ptr = (ch | otherMark) & byteMask;
+       ch >>= 6;
+       /* FALLTHRU */
+    case 1:
+       *--ptr = (ch | firstMark[count]);
+       break;
+    }
+    while (count--)
+       _nc_outch(*ptr++);
+    return OK;
 }
+#endif
 
-int putp(const char *string)
+int
+putp(const char *string)
 {
-       return tputs(string, 1, _nc_outch);
+    return tputs(string, 1, _nc_outch);
 }
 
-int tputs(const char *string, int affcnt, int (*outc)(int))
+int
+tputs(const char *string, int affcnt, int (*outc) (int))
 {
-bool   always_delay;
-bool   normal_delay;
-int    number;
-#ifdef BSD_TPUTS
-int    trailpad;
+    bool always_delay;
+    bool normal_delay;
+    int number;
+#if BSD_TPUTS
+    int trailpad;
 #endif /* BSD_TPUTS */
 
 #ifdef TRACE
-char   addrbuf[32];
-
-       if (_nc_tracing & TRACE_TPUTS)
-       {
-               if (outc == _nc_outch)
-                       (void) strcpy(addrbuf, "_nc_outch");
-               else
-                       (void) sprintf(addrbuf, "%p", outc);
-               if (_nc_tputs_trace) {
-                       TR(TRACE_MAXIMUM, ("tputs(%s = %s, %d, %s) called", _nc_tputs_trace, _nc_visbuf(string), affcnt, addrbuf));
-               }
-               else {
-                       TR(TRACE_MAXIMUM, ("tputs(%s, %d, %s) called", _nc_visbuf(string), affcnt, addrbuf));
-               }
-               _nc_tputs_trace = (char *)NULL;
+    char addrbuf[32];
+
+    if (_nc_tracing & TRACE_TPUTS) {
+       if (outc == _nc_outch)
+           (void) strcpy(addrbuf, "_nc_outch");
+       else
+           (void) sprintf(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);
        }
+       _nc_tputs_trace = (char *) NULL;
+    }
 #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
-#ifdef NCURSES_NO_PADDING
-                && (SP == 0 || !(SP->_no_padding))
+    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
+           && (SP == 0 || !(SP->_no_padding))
 #endif
-                && (_nc_baudrate(ospeed) >= padding_baud_rate);
+           && (_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(*string)) {
+       while (isdigit(*string)) {
+           trailpad = trailpad * 10 + (*string - '0');
+           string++;
+       }
+       trailpad *= 10;
+       if (*string == '.') {
+           string++;
+           if (isdigit(*string)) {
+               trailpad += (*string - '0');
+               string++;
+           }
+           while (isdigit(*string))
+               string++;
        }
 
-#ifdef 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(*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(*string) && *string != '.') || !strchr(string, '>')) {
+                   (*outc) ('$');
+                   (*outc) ('<');
+                   continue;
+               }
+
+               number = 0;
                while (isdigit(*string)) {
-                       trailpad = trailpad * 10 + (*string - '0');
-                       string++;
+                   number = number * 10 + (*string - '0');
+                   string++;
                }
-               trailpad *= 10;
+               number *= 10;
                if (*string == '.') {
+                   string++;
+                   if (isdigit(*string)) {
+                       number += (*string - '0');
+                       string++;
+                   }
+                   while (isdigit(*string))
                        string++;
-                       if (isdigit(*string)) {
-                               trailpad += (*string - '0');
-                               string++;
-                       }
-                       while (isdigit(*string))
-                               string++;
                }
 
-               if (*string == '*') {
-                       trailpad *= affcnt;
+               mandatory = FALSE;
+               while (*string == '*' || *string == '/') {
+                   if (*string == '*') {
+                       number *= affcnt;
+                       string++;
+                   } else {    /* if (*string == '/') */
+                       mandatory = TRUE;
                        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(*string) && *string != '.') || !strchr(string, '>')) {
-                                       (*outc)('$');
-                                       (*outc)('<');
-                                       continue;
-                               }
-
-                               number = 0;
-                               while (isdigit(*string)) {
-                                       number = number * 10 + (*string - '0');
-                                       string++;
-                               }
-                               number *= 10;
-                               if (*string == '.') {
-                                       string++;
-                                       if (isdigit(*string)) {
-                                               number += (*string - '0');
-                                               string++;
-                                       }
-                                       while (isdigit(*string))
-                                               string++;
-                               }
-
-                               mandatory = FALSE;
-                               while (*string == '*' || *string == '/')
-                               {
-                                       if (*string == '*') {
-                                               number *= affcnt;
-                                               string++;
-                                       }
-                                       else /* if (*string == '/') */ {
-                                               mandatory = TRUE;
-                                               string++;
-                                       }
-                               }
-
-                               if (number > 0
-                                && (always_delay
-                                 || normal_delay
-                                 || mandatory))
-                                       delay_output(number/10);
-
-                       } /* endelse (*string == '<') */
-               } /* endelse (*string == '$') */
-
-               if (*string == '\0')
-                       break;
+               if (number > 0
+                   && (always_delay
+                       || normal_delay
+                       || mandatory))
+                   delay_output(number / 10);
 
-               string++;
-       }
+           }                   /* endelse (*string == '<') */
+       }                       /* endelse (*string == '$') */
 
-#ifdef BSD_TPUTS
-       /*
-        * Emit any BSD-style prefix padding that we've accumulated now.
-        */
-       if (trailpad > 0
-        && (always_delay || normal_delay))
-               delay_output(trailpad/10);
+       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;
+    my_outch = _nc_outch;
+    return OK;
 }