| 1 | /* ELLE - Copyright 1982, 1985, 1987 by Ken Harrenstien, SRI International
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| 2 | * This software is quasi-public; it may be used freely with
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| 3 | * like software, but may NOT be sold or made part of licensed
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| 4 | * products without permission of the author.
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| 5 | */
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| 6 | /*
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| 7 | * EEFILL Fill Mode functions
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| 8 | */
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| 9 |
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| 10 | #include "elle.h"
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| 11 |
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| 12 | extern int ev_fcolumn; /* Fill Column variable (defined in EEVINI) */
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| 13 | #if FX_SFPREF
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| 14 | char *fill_prefix; /* Fill Prefix variable */
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| 15 | int fill_plen; /* Length of Fill Prefix (0 = no prefix) */
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| 16 | #endif /*FX_SFPREF*/
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| 17 |
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| 18 | #if FX_FILLMODE
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| 19 | int fill_mode = 0; /* TRUE when Auto Fill Mode is on */
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| 20 | int *fill_trig; /* Pointer to fill-trigger chbit array */
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| 21 | static char *fill_initrig = " \t.,;:)!";
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| 22 | #endif /*FX_FILLMODE*/
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| 23 |
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| 24 | /* Following stuff for testing routines on */
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| 25 | /*
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| 26 |
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| 27 | 1 2 3 4 5 6 7
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| 28 | 0123456789012345678901234567890123456789012345678901234567890123456789012345
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| 29 |
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| 30 | Okay... more stuff to hack. Okay. a b c d e f g h i j k l m
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| 31 | n o p q r s t u v w x y z dfsd stuff to hack 01234 Okay testing
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| 32 | more stuff to hack. Okay... more stuff to hack more stuff to
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| 33 | hack. Okay... more stuff to line long stuff to hack. Okay...
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| 34 | even more gap and. period. okay, end of stuff.
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| 35 | This is another fence.
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| 36 | */
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| 37 | |
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| 38 |
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| 39 |
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| 40 | #if FX_SFCOL
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| 41 | /* EFUN: "Set Fill Column" */
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| 42 | f_sfcol()
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| 43 | { register int linel;
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| 44 | char temp[20];
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| 45 |
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| 46 | linel = exp_p ? exp : d_curind();
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| 47 | if(linel < 0) linel = 0;
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| 48 | say("Fill column = ");
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| 49 | dottoa(temp,(chroff)linel);
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| 50 | saytoo(temp);
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| 51 | ev_fcolumn = linel;
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| 52 | }
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| 53 | #endif /*FX_SFCOL*/
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| 54 |
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| 55 |
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| 56 | #if FX_SFPREF
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| 57 | /* EFUN: "Set Fill Prefix" */
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| 58 | f_sfpref()
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| 59 | { register int i;
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| 60 | register char *cp;
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| 61 |
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| 62 | if((i = cur_dot - e_boldot()) > MAXLINE)
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| 63 | { ding("Absurd Fill Prefix");
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| 64 | return;
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| 65 | }
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| 66 | if(fill_prefix)
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| 67 | { chkfree(fill_prefix);
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| 68 | fill_plen = 0;
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| 69 | }
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| 70 | if(i <= 0)
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| 71 | { fill_prefix = 0;
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| 72 | cp = "";
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| 73 | }
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| 74 | else
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| 75 | { fill_prefix = cp = memalloc((SBMO)(i+1));
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| 76 | fill_plen = i;
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| 77 | e_gobol();
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| 78 | do { *cp++ = e_getc(); }
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| 79 | while(--i);
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| 80 | *cp = 0;
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| 81 | cp = fill_prefix;
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| 82 | }
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| 83 | say("Fill Prefix = \"");
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| 84 | saytoo(cp);
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| 85 | saytoo("\"");
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| 86 | }
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| 87 |
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| 88 |
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| 89 | /* TSTFILLP(lim) - Check for existence of Fill Prefix at current dot. If
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| 90 | * not there, returns 0 without changing dot. If there, returns
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| 91 | * 1 and leaves dot immediately after the Fill Prefix.
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| 92 | * Lim = # of chars allowed to scan from buffer.
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| 93 | */
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| 94 | tstfillp(lim)
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| 95 | int lim;
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| 96 | { register int i, c;
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| 97 | register char *cp;
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| 98 | chroff savdot;
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| 99 |
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| 100 | if(!(i = fill_plen) || (i > lim))
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| 101 | return(0);
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| 102 | savdot = e_dot();
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| 103 | cp = fill_prefix;
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| 104 | do { if(*cp++ != e_getc())
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| 105 | { e_go(savdot);
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| 106 | return(0);
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| 107 | }
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| 108 | } while(--i);
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| 109 | return(1);
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| 110 | }
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| 111 | #endif /*FX_SFPREF*/
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| 112 | |
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| 113 |
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| 114 | #if FX_FILLREG || FX_FILLPARA
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| 115 |
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| 116 | /* ED_FILL(start, end, flag) - Fill a region.
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| 117 | * Flag 0 for full filling; extra whitespace is flushed. First
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| 118 | * word is always retained.
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| 119 | * 1 for skimpy filling such as Auto-Fill likes.
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| 120 | * Extra whitespace is NOT flushed, except at
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| 121 | * beginning of a newly created line.
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| 122 | * This is not yet implemented however.
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| 123 | * Note: updates cur_dot to compensate for changes in buffer, and returns
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| 124 | * there when done!
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| 125 | * Note: Checks for Fill Prefix when it exists.
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| 126 | */
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| 127 | ed_fill(begloc, endloc, flag)
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| 128 | chroff begloc, endloc;
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| 129 | int flag;
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| 130 | { register int c;
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| 131 | register int len, lastc;
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| 132 | chroff savloc;
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| 133 | int lastbrk;
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| 134 | int parlen;
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| 135 |
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| 136 | parlen = endloc - begloc;
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| 137 | if(parlen < 0)
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| 138 | { begloc = endloc;
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| 139 | parlen = -parlen;
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| 140 | }
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| 141 | e_go(begloc);
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| 142 | len = d_curind(); /* Set up current col */
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| 143 |
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| 144 | #if FX_SFPREF
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| 145 | /* If at beg of line, check for fill prefix and skip over it */
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| 146 | if((len == 0) && tstfillp(parlen))
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| 147 | { parlen -= fill_plen;
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| 148 | len = d_curind();
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| 149 | }
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| 150 | #endif /*FX_SFPREF*/
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| 151 | lastbrk = 0; /* Put next word on no matter what. */
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| 152 | c = 0;
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| 153 | for(;;)
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| 154 | {
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| 155 | #if ICONOGRAPHICS
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| 156 | if (c != ')' && c != '"') /* allow for two sp after .) or ." */
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| 157 | #endif /*ICONOGRAPHICS*/
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| 158 | lastc = c;
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| 159 | if(--parlen < 0) break;
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| 160 | c = e_getc();
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| 161 | if(c == EOF)
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| 162 | break;
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| 163 | #if FX_SFPREF
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| 164 | /* If at beg of line, check for fill prefix and flush it */
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| 165 | if((c == LF) && tstfillp(parlen))
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| 166 | { e_igoff(-(fill_plen+1));
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| 167 | e_ovwc(c = SP);
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| 168 | e_deln((chroff)fill_plen);
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| 169 | parlen -= fill_plen;
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| 170 | if(cur_dot >= e_dot())
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| 171 | cur_dot -= fill_plen;
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| 172 | }
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| 173 | #endif /*FX_SFPREF*/
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| 174 | if(c == TAB || c == LF) /* Replace tabs+eols by sps */
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| 175 | { e_backc(); /* Back up 1 */
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| 176 | e_ovwc(c = SP);
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| 177 | }
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| 178 | if(c == SP)
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| 179 | { if(lastc == SP)
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| 180 | { e_rdelc();
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| 181 | if(cur_dot > e_dot()) --cur_dot;
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| 182 | continue;
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| 183 | }
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| 184 | lastbrk = len;
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| 185 | if(lastc == '.' || lastc == '!' || lastc == '?'
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| 186 | #if ICONOGRAPHICS
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| 187 | || lastc == ':'
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| 188 | #endif /*ICONOGRAPHICS*/
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| 189 | )
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| 190 | { if(--parlen < 0) goto done;
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| 191 | if((c = e_getc()) == EOF)
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| 192 | goto done;
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| 193 | len++;
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| 194 | if(c != SP)
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| 195 | { e_backc();
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| 196 | e_putc(c = SP);
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| 197 | if(cur_dot >= e_dot()) ++cur_dot;
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| 198 | }
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| 199 | }
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| 200 | }
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| 201 | #if ICONOGRAPHICS
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| 202 | if (c == BS) /* adjust for backspaces */
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| 203 | if ((len -= 2) < 0) len = 0;
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| 204 | #endif /*ICONOGRAPHICS*/
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| 205 | /* Normal char */
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| 206 | if(++len > ev_fcolumn && lastbrk) /* If went too far */
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| 207 | { c = lastbrk - len; /* Must put EOL at last SP */
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| 208 | e_igoff(c);
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| 209 | parlen -= c; /* C is negative, actually adding */
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| 210 | parlen--;
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| 211 | e_ovwc(LF);
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| 212 | lastbrk = 0;
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| 213 | len = 0;
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| 214 | c = SP; /* Pretend this char was space */
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| 215 | #if FX_SFPREF
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| 216 | if(fill_plen)
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| 217 | { if(cur_dot >= e_dot())
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| 218 | cur_dot += fill_plen;
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| 219 | /* Better hope no nulls in prefix! */
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| 220 | e_sputz(fill_prefix);
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| 221 | len = d_curind();
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| 222 | }
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| 223 | #endif /*FX_SFPREF*/
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| 224 | }
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| 225 | }
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| 226 | done: savloc = cur_dot;
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| 227 | e_setcur(); /* Reached paragraph end, set cur_dot temporarily */
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| 228 | buf_tmod(begloc-cur_dot); /* So that proper range is marked */
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| 229 | e_gosetcur(savloc); /* Then restore original cur_dot */
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| 230 | }
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| 231 | #endif /*FX_FILLREG || FX_FILLPARA*/
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| 232 | |
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| 233 |
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| 234 | #if FX_FILLMODE
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| 235 |
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| 236 | /* EFUN: "Auto Fill Mode" */
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| 237 | /* Toggles Auto Fill Mode (a minor mode). */
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| 238 | f_fillmode()
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| 239 | { register char *cp;
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| 240 | int *chballoc();
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| 241 |
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| 242 | fill_mode = fill_mode ? 0 : 1;
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| 243 | if(!fill_trig)
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| 244 | { fill_trig = chballoc(128);
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| 245 | for(cp = fill_initrig; *cp; ++cp)
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| 246 | chbis(fill_trig, *cp);
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| 247 | }
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| 248 | redp(RD_MODE);
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| 249 | }
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| 250 |
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| 251 | /* Called by F_INSSELF to handle char insertion in Auto Fill mode */
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| 252 | fx_insfill(c)
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| 253 | int c;
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| 254 | {
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| 255 | ed_insn(c,exp);
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| 256 | if(chbit(fill_trig, c))
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| 257 | { fill_cur_line();
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| 258 |
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| 259 | }
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| 260 | }
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| 261 |
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| 262 |
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| 263 | fill_cur_line()
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| 264 | {
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| 265 | register int foundit, i;
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| 266 | chroff lastbrkdot, boldot, eoldot;
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| 267 |
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| 268 | boldot = e_boldot();
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| 269 |
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| 270 | /* First back up to find place to make first break. */
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| 271 | e_bwsp();
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| 272 | lastbrkdot = e_dot();
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| 273 | foundit = 0;
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| 274 | for(foundit = 0; foundit >= 0;)
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| 275 | { if((i = d_curind()) <= ev_fcolumn)
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| 276 | { if(foundit)
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| 277 | foundit = -1;
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| 278 | else break;
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| 279 | }
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| 280 | else ++foundit;
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| 281 | while (!c_wsp (e_rgetc ())) ;
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| 282 | e_bwsp();
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| 283 | lastbrkdot = e_dot();
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| 284 | if(lastbrkdot <= boldot)
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| 285 | { lastbrkdot = boldot;
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| 286 | break;
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| 287 | }
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| 288 | }
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| 289 |
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| 290 | if(foundit)
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| 291 | ed_fill(lastbrkdot, e_eoldot(), 1);
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| 292 | }
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| 293 | #endif /*FX_FILLMODE*/
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| 294 | |
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| 295 |
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| 296 | #if IMAGEN
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| 297 |
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| 298 | #if FX_TEXTMODE
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| 299 | /* EFUN: "Text Mode Toggle" (not EMACS) */
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| 300 | f_textmode()
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| 301 | {
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| 302 | cur_buf->b_flags ^= B_TEXTMODE;
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| 303 | redp(RD_MODE);
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| 304 | }
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| 305 | #endif /*FX_TEXTMODE*/
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| 306 |
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| 307 | int curr_indent = -1; /* Current indent (for text mode autowrap) */
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| 308 | /* (misnomered: actually current column) */
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| 309 | chroff best_break; /* Best break point so far */
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| 310 |
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| 311 |
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| 312 | /* Fill-mode version of "Insert Self" */
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| 313 |
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| 314 | fim_insself(c)
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| 315 | int c;
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| 316 | {
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| 317 | register int ind, flags = cur_buf->b_flags;
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| 318 |
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| 319 | /* In Text mode, auto-wrap happens at spaces after fill column */
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| 320 | if (c == SP && flags & B_TEXTMODE && exp == 1 && magic_wrap(c))
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| 321 | return;
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| 322 |
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| 323 | /* In C-mode, tab stops are every 4 columns */
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| 324 | else if (c == TAB && flags & B_CMODE &&
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| 325 | (ind = magic_backto_bol()) >= 0)
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| 326 | ed_indto((ind + 4) & ~3);
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| 327 | else
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| 328 | { ed_insn(c, exp);
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| 329 |
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| 330 | /* Keep track of indent, once we have a grip on it */
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| 331 | if (last_cmd == INSCMD && curr_indent != -1)
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| 332 | { this_cmd = INSCMD; /* Keep the ball rolling */
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| 333 | if (c == TAB)
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| 334 | curr_indent = ((curr_indent + 8) & ~7)
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| 335 | + 8 * (exp - 1);
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| 336 | else if (c == '\n')
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| 337 | curr_indent = 0;
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| 338 | else if (c < SP || c > 0176)
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| 339 | curr_indent += (2 * exp);
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| 340 | else
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| 341 | curr_indent += exp;
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| 342 | }
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| 343 | }
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| 344 | }
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| 345 |
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| 346 | /* Fill-mode version of "Delete Character" */
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| 347 |
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| 348 | fim_dchar()
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| 349 | { /* In C mode, deleting at BOL should do fake TAB preservation */
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| 350 | if (cur_buf->b_flags & B_CMODE)
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| 351 | { chroff savdot;
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| 352 | register int c, indent;
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| 353 |
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| 354 | if (e_rgetc() != LF)
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| 355 | { /* Only hack this at BOL */
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| 356 | e_getc();
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| 357 | goto normal;
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| 358 | }
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| 359 | e_getc();
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| 360 | savdot = e_dot();
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| 361 | indent = 0;
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| 362 | while ((c = e_getc()) == SP || c == TAB)
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| 363 | if (c == SP)
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| 364 | ++indent;
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| 365 | else
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| 366 | indent = (indent + 8) & ~7;
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| 367 | e_rgetc();
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| 368 | if (indent >= 4)
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| 369 | { ed_delete(savdot, e_dot());
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| 370 | ed_indto((indent - 4) & ~3);
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| 371 | f_begline(); /* HACK!!!! */
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| 372 | }
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| 373 | else
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| 374 | { e_go(savdot);
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| 375 | ef_deln(exp);
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| 376 | }
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| 377 | }
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| 378 | else
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| 379 | normal: return (ef_deln(exp));
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| 380 | }
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| 381 |
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| 382 | /* Fill-mode version of "Backward Delete Character" */
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| 383 |
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| 384 | fim_bdchar()
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| 385 | { register int ind;
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| 386 |
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| 387 | /* If in C mode, and deleting into white space at BOL, hack tabs */
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| 388 | if (exp == 1 && cur_buf->b_flags & B_CMODE &&
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| 389 | (ind = magic_backto_bol()) > 0)
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| 390 | ed_indto(ind < 4 ? ind - 1 : ((ind - 4) & ~3));
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| 391 | else
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| 392 | return (ef_deln (-exp));
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| 393 | }
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| 394 |
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| 395 | /* Fill-mode version of "CRLF" */
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| 396 | fim_crlf()
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| 397 | { register int i;
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| 398 |
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| 399 | if(e_getc() == LF
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| 400 | && exp == 1
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| 401 | && e_lblankp() && e_lblankp())
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| 402 | { e_gocur();
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| 403 | e_gonl();
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| 404 | e_setcur();
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| 405 | ed_delete(e_dot(), e_eoldot());
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| 406 | }
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| 407 | else
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| 408 | { e_gocur();
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| 409 | #if IMAGEN
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| 410 | if (cur_buf->b_flags & B_TEXTMODE && exp == 1 &&
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| 411 | magic_wrap('\n'))
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| 412 | return;
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| 413 | else
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| 414 | #endif /*IMAGEN*/
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| 415 | if((i = exp) > 0)
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| 416 | do ed_crins();
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| 417 | while(--i);
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| 418 | }
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| 419 | }
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| 420 | |
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| 421 |
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| 422 | /* Do all magic for auto-wrap in Text mode:
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| 423 | * return as did wrap (i.e., everything is taken care of)
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| 424 | */
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| 425 | magic_wrap(tc)
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| 426 | int tc; /* "trigger char" */
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| 427 | {
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| 428 | register int c, indent, i, nc;
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| 429 | chroff savdot, modstart, breakdot;
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| 430 |
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| 431 | savdot = e_dot();
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| 432 | nc = 0;
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| 433 | if (last_cmd == INSCMD && curr_indent != -1)
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| 434 | { indent = curr_indent; /* Already know our indent */
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| 435 | breakdot = best_break;
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| 436 | }
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| 437 | else
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| 438 | {
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| 439 | #ifdef INDENTDEBUG
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| 440 | barf2("Full indent calculation");
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| 441 | #endif
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| 442 | for (nc = 0; (c = e_rgetc()) != EOF && c != '\n'; ++nc)
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| 443 | ; /* nc: # chars to look at */
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| 444 | if (c == '\n') /* Go back over NL */
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| 445 | e_getc();
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| 446 | indent = 0;
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| 447 |
|
|---|
| 448 | /* Search for last line break point, leaving it in breakdot */
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| 449 | breakdot = (chroff)0;
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|---|
| 450 | while (--nc >= 0)
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| 451 | { c = e_getc();
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| 452 | if (c == TAB)
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| 453 | indent = (indent + 8) & ~7;
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| 454 | else if (c < SP || c > 0176)
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| 455 | indent += 2;
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| 456 | else
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| 457 | ++indent;
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| 458 | if ((c == SP || c == TAB) &&
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| 459 | (breakdot == (chroff)0 || (indent <= ev_fcolumn)))
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| 460 | breakdot = e_dot();
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| 461 | }
|
|---|
| 462 | }
|
|---|
| 463 |
|
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| 464 | /* If there is nothing to do, get out */
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| 465 | if (indent <= ev_fcolumn)
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|---|
| 466 | { e_go(savdot);
|
|---|
| 467 | if (tc == SP)
|
|---|
| 468 | { curr_indent = indent;
|
|---|
| 469 | best_break = (chroff)(savdot + 1); /* Remember here, also */
|
|---|
| 470 | this_cmd = INSCMD; /* We do know current indent */
|
|---|
| 471 | }
|
|---|
| 472 | else if (tc == '\n')
|
|---|
| 473 | { curr_indent = 0;
|
|---|
| 474 | best_break = (chroff)0;
|
|---|
| 475 | this_cmd = INSCMD;
|
|---|
| 476 | }
|
|---|
| 477 | else
|
|---|
| 478 | errbarf("bad trigger");
|
|---|
| 479 | return(0);
|
|---|
| 480 | }
|
|---|
| 481 |
|
|---|
| 482 | if (breakdot == (chroff)0)
|
|---|
| 483 | {
|
|---|
| 484 | /* No breakpoint found or none needed, just break line at end
|
|---|
| 485 | */
|
|---|
| 486 | e_go(savdot);
|
|---|
| 487 | modstart = savdot;
|
|---|
| 488 | e_putc('\n');
|
|---|
| 489 | }
|
|---|
| 490 | else
|
|---|
| 491 | {
|
|---|
| 492 | /* Get to breakpoint and replace with newline
|
|---|
| 493 | */
|
|---|
| 494 | e_go(breakdot);
|
|---|
| 495 | e_rdelc();
|
|---|
| 496 | modstart = e_dot(); /* Remember where changes start */
|
|---|
| 497 | e_putc('\n'); /* Insert line break */
|
|---|
| 498 | e_go(savdot); /* Get back to trigger point */
|
|---|
| 499 | }
|
|---|
| 500 | if (e_rgetc() != '\n')
|
|---|
| 501 | { /* If not at line start, */
|
|---|
| 502 | e_getc();
|
|---|
| 503 | e_putc(tc); /* insert trigger character */
|
|---|
| 504 |
|
|---|
| 505 | /* Once again, compute new indent by backing up to BOL */
|
|---|
| 506 | for (nc = 0; (c = e_rgetc()) != EOF && c != '\n'; ++nc)
|
|---|
| 507 | ;
|
|---|
| 508 | if (c == '\n') /* Go back over NL */
|
|---|
| 509 | e_getc();
|
|---|
| 510 | indent = 0;
|
|---|
| 511 | breakdot = (chroff)0;
|
|---|
| 512 | while (--nc >= 0)
|
|---|
| 513 | { /* Get back to current dot */
|
|---|
| 514 | c = e_getc();
|
|---|
| 515 | if (c == TAB)
|
|---|
| 516 | indent = (indent + 8) & ~7;
|
|---|
| 517 | else if (c < SP || c > 0176)
|
|---|
| 518 | indent += 2;
|
|---|
| 519 | else
|
|---|
| 520 | ++indent;
|
|---|
| 521 | if ((c == SP || c == TAB) &&
|
|---|
| 522 | (breakdot == (chroff)0 || (indent <= ev_fcolumn)))
|
|---|
| 523 | breakdot = e_dot();
|
|---|
| 524 | }
|
|---|
| 525 | if (breakdot == (chroff)0) /* If no good break found, use dot */
|
|---|
| 526 | breakdot = e_dot();
|
|---|
| 527 | curr_indent = indent; /* Now we know where we are */
|
|---|
| 528 | if (tc == '\n') /* If trigger was NL */
|
|---|
| 529 | best_break = (chroff)0; /* indent is 0, and no best break */
|
|---|
| 530 | else
|
|---|
| 531 | best_break = breakdot; /* This is best break so far */
|
|---|
| 532 | }
|
|---|
| 533 | else
|
|---|
| 534 | { e_getc();
|
|---|
| 535 | curr_indent = 0; /* At line start, no indent */
|
|---|
| 536 | best_break = (chroff)0; /* Do not have a best break so far */
|
|---|
| 537 | }
|
|---|
| 538 | ed_setcur();
|
|---|
| 539 | buf_tmat(modstart); /* Alert to potential changes */
|
|---|
| 540 | this_cmd = INSCMD; /* Say we know where we are */
|
|---|
| 541 | return(1);
|
|---|
| 542 | }
|
|---|
| 543 |
|
|---|
| 544 | /* Do lots of magic things for C-mode indent:
|
|---|
| 545 | * erase back to BOL iff we are looking back at white space only,
|
|---|
| 546 | * returning the indent level of the original dot
|
|---|
| 547 | * (< 0 means no erasure done)
|
|---|
| 548 | */
|
|---|
| 549 | /*#define MYDEBUG /* */
|
|---|
| 550 | #ifdef MYDEBUG
|
|---|
| 551 | reveal(msg, v1, v2, v3)
|
|---|
| 552 | char *msg;
|
|---|
| 553 | {
|
|---|
| 554 | char ahint[128];
|
|---|
| 555 | sprintf(ahint, msg, v1, v2, v3);
|
|---|
| 556 | barf2(ahint);
|
|---|
| 557 | }
|
|---|
| 558 | #endif
|
|---|
| 559 |
|
|---|
| 560 | magic_backto_bol()
|
|---|
| 561 | {
|
|---|
| 562 | chroff savdot;
|
|---|
| 563 | register int c, indent, nc, i;
|
|---|
| 564 |
|
|---|
| 565 | savdot = e_dot();
|
|---|
| 566 | nc = 0;
|
|---|
| 567 | while ((c = e_rgetc()) != EOF && c != LF)
|
|---|
| 568 | { ++nc; /* Count # chars */
|
|---|
| 569 | if (c != SP && c != TAB)
|
|---|
| 570 | { e_go(savdot);
|
|---|
| 571 | #ifdef MYDEBUG
|
|---|
| 572 | reveal("fail: nc: %d", nc);
|
|---|
| 573 | #endif
|
|---|
| 574 | return -1;
|
|---|
| 575 | }
|
|---|
| 576 | }
|
|---|
| 577 | if (c == LF) /* Go back over the LF */
|
|---|
| 578 | e_getc();
|
|---|
| 579 | indent = 0; /* (zero-based indent) */
|
|---|
| 580 | savdot = e_dot(); /* BOL is now origin for delete */
|
|---|
| 581 | for (i = 1; i <= nc; ++i)
|
|---|
| 582 | if ((c = e_getc()) == SP)
|
|---|
| 583 | ++indent;
|
|---|
| 584 | else /* (tab) */
|
|---|
| 585 | indent = (indent + 8) & ~7;
|
|---|
| 586 | if (nc > 0) /* Don't bother deleting nothing */
|
|---|
| 587 | ed_delete(savdot, e_dot());
|
|---|
| 588 | #ifdef MYDEBUG
|
|---|
| 589 | reveal("indent: %d, nc: %d, foo: %d", indent, nc, 234);
|
|---|
| 590 | #endif
|
|---|
| 591 | return(indent);
|
|---|
| 592 | }
|
|---|
| 593 | #endif /*IMAGEN*/
|
|---|
| 594 | |
|---|
| 595 |
|
|---|
| 596 | #if ICONOGRAPHICS
|
|---|
| 597 | /* Iconographics hack for Auto-Fill mode. Too big and clumsy, but
|
|---|
| 598 | * retained for posterity in case it has some obscure feature.
|
|---|
| 599 | */
|
|---|
| 600 |
|
|---|
| 601 | fill_current_line ()
|
|---|
| 602 | {
|
|---|
| 603 | chroff startpos, endpos, savepos, limitpos;
|
|---|
| 604 | int i, foundit;
|
|---|
| 605 | SBSTR *savep;
|
|---|
| 606 |
|
|---|
| 607 | foundit = 0;
|
|---|
| 608 | while (d_curind() > ev_fcolumn)
|
|---|
| 609 | {
|
|---|
| 610 | foundit = 1;
|
|---|
| 611 | startpos = e_dot ();
|
|---|
| 612 | e_bwsp ();
|
|---|
| 613 | while (d_curind() > ev_fcolumn) /* back up to ends of wds*/
|
|---|
| 614 | { /* until <= fill column */
|
|---|
| 615 | while (!c_wsp (e_rgetc ())) ;
|
|---|
| 616 | e_bwsp ();
|
|---|
| 617 | }
|
|---|
| 618 | if (e_dot () == e_boldot ())
|
|---|
| 619 | { /* ding ("Word does not fit in fill column"); */
|
|---|
| 620 | return(0);
|
|---|
| 621 | }
|
|---|
| 622 | savep = e_copyn (startpos - e_dot ());
|
|---|
| 623 | e_setcur (); /* ed_delete does gocur */
|
|---|
| 624 | ed_delete (savepos = e_dot (), startpos);
|
|---|
| 625 |
|
|---|
| 626 | f_crlf(); /* Now insert newline */
|
|---|
| 627 | e_sputz(fill_prefix); /* With fill prefix */
|
|---|
| 628 | startpos += e_dot () - savepos;
|
|---|
| 629 | if (d_curind() > ev_fcolumn)
|
|---|
| 630 | { ed_delete (savepos, e_dot ());
|
|---|
| 631 | sb_sins (cur_buf, savep);
|
|---|
| 632 | e_setcur ();
|
|---|
| 633 | ding ("Fill prefix > fill column???");
|
|---|
| 634 | return(0);
|
|---|
| 635 | }
|
|---|
| 636 | savepos = e_dot (); /* gun inherited initial whitespace */
|
|---|
| 637 | sb_sins (cur_buf, savep);
|
|---|
| 638 | e_go (savepos);
|
|---|
| 639 | e_fwsp ();
|
|---|
| 640 | if ((limitpos = e_dot ()) > startpos) limitpos = startpos;
|
|---|
| 641 | /* in case rest of line was white */
|
|---|
| 642 | ed_delete (savepos, limitpos);
|
|---|
| 643 | e_gosetcur (startpos + savepos - limitpos);
|
|---|
| 644 | }
|
|---|
| 645 |
|
|---|
| 646 | return foundit;
|
|---|
| 647 | }
|
|---|
| 648 | #endif /*ICONOGRAPHICS*/
|
|---|
