1: /* $Header: art.c,v 4.3.1.5 85/09/10 11:07:18 lwall Exp $ 2: * 3: * $Log: art.c,v $ 4: * Revision 4.3.1.5 85/09/10 11:07:18 lwall 5: * %m not restored on some returns. 6: * 7: * Revision 4.3.1.4 85/05/23 12:13:31 lwall 8: * shouldn't display article that's really a subdirectory. 9: * 10: * Revision 4.3.1.3 85/05/13 09:29:55 lwall 11: * Added CUSTOMLINES option. 12: * 13: * Revision 4.3.1.2 85/05/10 13:46:07 lwall 14: * Fixed header reparse bug on backpage. 15: * 16: * Revision 4.3.1.1 85/05/10 11:30:56 lwall 17: * Branch for patches. 18: * 19: * Revision 4.3 85/05/01 11:34:51 lwall 20: * Baseline for release with 4.3bsd. 21: * 22: */ 23: 24: #include "EXTERN.h" 25: #include "common.h" 26: #include "rn.h" 27: #include "ngstuff.h" 28: #include "head.h" 29: #include "cheat.h" 30: #include "help.h" 31: #include "search.h" 32: #include "artio.h" 33: #include "ng.h" 34: #include "bits.h" 35: #include "final.h" 36: #include "artstate.h" 37: #include "rcstuff.h" 38: #include "term.h" 39: #include "sw.h" 40: #include "util.h" 41: #include "backpage.h" 42: #include "intrp.h" 43: #include "INTERN.h" 44: #include "art.h" 45: 46: /* page_switch() return values */ 47: 48: #define PS_NORM 0 49: #define PS_ASK 1 50: #define PS_RAISE 2 51: #define PS_TOEND 3 52: 53: bool special = FALSE; /* is next page special length? */ 54: int slines = 0; /* how long to make page when special */ 55: ART_LINE highlight = -1; /* next line to be highlighted */ 56: char *restart = Nullch; /* if nonzero, the place where last */ 57: /* line left off on line split */ 58: char *blinebeg; /* where in buffer current line began */ 59: ART_POS alinebeg; /* where in file current line began */ 60: 61: #ifdef INNERSEARCH 62: ART_POS innersearch = 0; /* artpos of end of line we found */ 63: /* for 'g' command */ 64: ART_LINE isrchline = 0; /* last line to display */ 65: bool hide_everything = FALSE; 66: /* if set, do not write page now, */ 67: /* but refresh when done with page */ 68: COMPEX gcompex; /* in article search pattern */ 69: #endif 70: 71: bool firstpage; /* is this the 1st page of article? */ 72: 73: char art_buf[LBUFLEN]; /* place for article lines */ 74: 75: void 76: art_init() 77: { 78: ; 79: } 80: 81: int 82: do_article() 83: { 84: register char *s; 85: ART_POS artsize; /* size in bytes of article */ 86: bool hide_this_line = FALSE; /* hidden header line? */ 87: ART_LINE linenum; /* line # on page, 1 origin */ 88: #ifdef ULSMARTS 89: bool under_lining = FALSE; 90: /* are we underlining a word? */ 91: #endif 92: register char *bufptr = art_buf; 93: /* pointer to input buffer */ 94: register int outpos; /* column position of output */ 95: static char prompt_buf[64]; /* place to hold prompt */ 96: bool notesfiles = FALSE; /* might there be notesfiles junk? */ 97: char oldmode = mode; 98: 99: #ifdef INNERSEARCH 100: register int outputok; 101: #endif 102: 103: if (fstat(artfp->_file,&filestat)) 104: /* get article file stats */ 105: return DA_CLEAN; 106: if (filestat.st_mode & S_IFMT != S_IFREG) 107: return DA_NORM; 108: artsize = filestat.st_size; 109: /* from that get article size */ 110: sprintf(prompt_buf, 111: "%%sEnd of article %ld (of %ld)--what next? [%%s]", 112: (long)art,(long)lastart); /* format prompt string */ 113: prompt = prompt_buf; 114: int_count = 0; /* interrupt count is 0 */ 115: firstpage = (topline < 0); 116: for (;;) { /* for each page */ 117: assert(art == openart); 118: if (do_fseek) { 119: #ifdef ASYNC_PARSE 120: parse_maybe(art); /* make sure header is ours */ 121: #endif 122: artpos = vrdary(artline); 123: if (artpos < 0) 124: artpos = -artpos; /* labs(), anyone? */ 125: if (firstpage) 126: artpos = (ART_POS)0; 127: fseek(artfp,artpos,0); 128: if (artpos < htype[PAST_HEADER].ht_minpos) 129: in_header = SOME_LINE; 130: do_fseek = FALSE; 131: restart = Nullch; 132: } 133: if (firstpage) { 134: if (firstline) { 135: interp(art_buf, (sizeof art_buf), firstline); 136: #ifdef CLEAREOL 137: maybe_eol(); /* PWP */ 138: #endif CLEAREOL 139: fputs(art_buf,stdout) FLUSH; 140: artopen(art); /* rewind article in case interp */ 141: /* forced a header parse */ 142: } 143: else { 144: ART_NUM i; 145: 146: #ifdef CLEAREOL 147: maybe_eol(); /* PWP */ 148: #endif CLEAREOL 149: printf("Article %ld",(long)art); 150: i = (((ART_NUM)toread[ng]) - 1 + was_read(art)); 151: #ifdef DELAYMARK 152: if (i || dmcount) { 153: printf(" (%ld more",(long)i); 154: if (dmcount) 155: printf(" + %ld Marked to return)",(long)dmcount); 156: putchar(')'); 157: } 158: #else 159: if (i) 160: printf(" (%ld more)",(long)i); 161: #endif 162: if (htype[NGS_LINE].ht_flags & HT_HIDE) 163: printf(" in %s", ngname); 164: fputs(":\n",stdout) FLUSH; 165: } 166: start_header(art); 167: forcelast = FALSE; /* we will have our day in court */ 168: restart = Nullch; 169: artline = 0; /* start counting lines */ 170: artpos = 0; 171: vwtary(artline,artpos); /* remember pos in file */ 172: } 173: for (linenum=(firstpage?2:1); 174: in_header || ( 175: #ifdef INNERSEARCH 176: innersearch ? innermore() : 177: #endif 178: linenum<(firstpage?initlines:(special?slines:LINES)) ); 179: linenum++) { /* for each line on page */ 180: if (int_count) { /* exit via interrupt? */ 181: putchar('\n') FLUSH; /* get to left margin */ 182: int_count = 0; /* reset interrupt count */ 183: mode = oldmode; 184: return DA_NORM; /* skip out of loops */ 185: } 186: if (restart) { /* did not finish last line? */ 187: bufptr = restart; /* then start again here */ 188: restart = Nullch; /* and reset the flag */ 189: } 190: else { /* not a restart */ 191: if (fgets(art_buf,LBUFLEN,artfp)==Nullch) { 192: /* if all done */ 193: mode = oldmode; 194: return DA_NORM; /* skip out of loops */ 195: } 196: bufptr = art_buf; /* so start at beginning */ 197: art_buf[LBUFLEN-1] = '\0'; 198: /* make sure string ends */ 199: } 200: blinebeg = bufptr; /* remember where we began */ 201: alinebeg = artpos; /* both in buffer and file */ 202: if (in_header && bufptr == art_buf) 203: hide_this_line = 204: parseline(art_buf,do_hiding,hide_this_line); 205: else if (notesfiles && do_hiding && 206: bufptr == art_buf && *art_buf == '#' && 207: isupper(art_buf[1]) && art_buf[2] == ':' ) { 208: fgets(art_buf,sizeof(art_buf),artfp); 209: if (index(art_buf,'!') != Nullch) 210: fgets(art_buf,sizeof(art_buf),artfp); 211: htype[PAST_HEADER].ht_minpos = ftell(artfp); 212: /* exclude notesfiles droppings */ 213: hide_this_line = TRUE; /* and do not print either */ 214: notesfiles = FALSE; 215: } 216: #ifdef CUSTOMLINES 217: if (hideline && bufptr == art_buf && 218: execute(&hide_compex,art_buf) ) 219: hide_this_line = TRUE; 220: #endif 221: if (in_header && htype[in_header].ht_flags & HT_MAGIC) { 222: if (in_header == NGS_LINE) { 223: hide_this_line = (index(art_buf,',') == Nullch); 224: } 225: else if (in_header == EXPIR_LINE) { 226: if (!(htype[EXPIR_LINE].ht_flags & HT_HIDE)) 227: hide_this_line = (strlen(art_buf) < 10); 228: } 229: } 230: if (in_header == SUBJ_LINE && 231: htype[SUBJ_LINE].ht_flags & HT_MAGIC) { 232: /* is this the subject? */ 233: int length; 234: 235: length = strlen(art_buf)-1; 236: artline++; 237: art_buf[length] = '\0'; /* wipe out newline */ 238: #ifdef NOFIREWORKS 239: no_ulfire(); 240: #endif 241: notesfiles = 242: (instr(&art_buf[length-10]," - (nf") != Nullch); 243: if (oldsubject) { 244: length += 7; 245: fputs("(SAME) ",stdout); 246: oldsubject = FALSE; 247: } 248: if (length+UG > COLS) { /* rarely true */ 249: linenum++; 250: vwtary(artline,vrdary(artline-1)+COLS); 251: artline++; 252: } 253: s = art_buf + 8; 254: *s++ = '\0'; /* make into 2 strings */ 255: #ifdef CLEAREOL 256: maybe_eol(); /* PWP */ 257: #endif CLEAREOL 258: fputs(art_buf,stdout) FLUSH; 259: /* print up through : */ 260: if (!UG) 261: putchar(' '); 262: underprint(s); /* print subject underlined */ 263: putchar('\n') FLUSH; /* and finish the line */ 264: } 265: else if (hide_this_line && do_hiding) { 266: /* do not print line? */ 267: linenum--; /* compensate for linenum++ */ 268: if (!in_header) 269: hide_this_line = FALSE; 270: } 271: else { /* just a normal line */ 272: if (highlight==artline) { /* this line to be highlit? */ 273: if (marking == STANDOUT) { 274: #ifdef NOFIREWORKS 275: if (erase_screen) 276: no_sofire(); 277: #endif 278: standout(); 279: } 280: else { 281: #ifdef NOFIREWORKS 282: if (erase_screen) 283: no_ulfire(); 284: #endif 285: underline(); 286: } 287: if (*bufptr == '\n') 288: putchar(' '); 289: } 290: #ifdef INNERSEARCH 291: outputok = !hide_everything; 292: /* get it into register, hopefully */ 293: #endif 294: #ifdef CLEAREOL 295: #ifdef INNERSEARCH 296: if (outputok) 297: #endif 298: maybe_eol(); /* PWP */ 299: #endif CLEAREOL 300: #ifdef CUSTOMLINES 301: if (pagestop && bufptr == art_buf && 302: execute(&page_compex,art_buf) ) 303: linenum = 32700; 304: #endif 305: for (outpos = 0; outpos < COLS; ) { 306: /* while line has room */ 307: if (*bufptr >= ' ') { /* normal char? */ 308: #ifdef ULSMARTS 309: if (*bufptr == '_') { 310: if (bufptr[1] == '\b') { 311: if (!under_lining && highlight!=artline 312: #ifdef INNERSEARCH 313: && outputok 314: #endif 315: ) { 316: under_lining++; 317: if (UG) { 318: if (bufptr != buf && 319: bufptr[-1] == ' ') { 320: outpos--; 321: backspace(); 322: } 323: } 324: underline(); 325: } 326: bufptr += 2; 327: } 328: } 329: else { 330: if (under_lining) { 331: under_lining = 0; 332: un_underline(); 333: if (UG) { 334: if (*bufptr == ' ') 335: goto skip_put; 336: outpos++; 337: } 338: } 339: } 340: #endif 341: #ifdef INNERSEARCH 342: if (outputok) 343: #endif 344: { 345: #ifdef ROTATION 346: if (rotate && !in_header 347: && isalpha(*bufptr)) { 348: if ((*bufptr & 31) <= 13) 349: putchar(*bufptr+13); 350: else 351: putchar(*bufptr-13); 352: } 353: else 354: #endif 355: putchar(*bufptr); 356: } 357: if (*UC && ((highlight==artline && marking == 1) 358: #ifdef ULSMARTS 359: || under_lining 360: #endif 361: )) { 362: backspace(); 363: underchar(); 364: } 365: skip_put: 366: bufptr++; 367: outpos++; 368: } 369: else if (*bufptr == '\n' || !*bufptr) { 370: /* newline? */ 371: #ifdef ULSMARTS 372: if (under_lining) { 373: under_lining = 0; 374: un_underline(); 375: } 376: #endif 377: #ifdef DEBUGGING 378: if (debug & DEB_INNERSRCH && outpos < COLS - 6) { 379: standout(); 380: printf("%4d",artline); 381: un_standout(); 382: } 383: #endif 384: #ifdef INNERSEARCH 385: if (outputok) 386: #endif 387: putchar('\n') FLUSH; 388: restart = 0; 389: outpos = 1000; /* signal normal \n */ 390: } 391: else if (*bufptr == '\t') { /* tab? */ 392: #ifdef INNERSEARCH 393: if (outputok) 394: #endif 395: putchar(*bufptr); 396: bufptr++; 397: outpos += 8 - outpos % 8; 398: } 399: else if (*bufptr == '\f') { /* form feed? */ 400: #ifdef INNERSEARCH 401: if (outputok) 402: #endif 403: fputs("^L",stdout); 404: if (bufptr == blinebeg && highlight != artline) 405: linenum = 32700; 406: /* how is that for a magic number? */ 407: bufptr++; 408: outpos += 2; 409: } 410: else { /* other control char */ 411: #ifdef INNERSEARCH 412: if (outputok) 413: #endif 414: { 415: putchar('^'); 416: if (highlight == artline && *UC && marking == 1) { 417: backspace(); 418: underchar(); 419: putchar(*bufptr+64); 420: backspace(); 421: underchar(); 422: } 423: else 424: putchar(*bufptr+64); 425: } 426: bufptr++; 427: outpos += 2; 428: } 429: 430: } /* end of column loop */ 431: 432: if (outpos < 1000) {/* did line overflow? */ 433: restart = bufptr; 434: /* restart here next time */ 435: if (AM) { /* automatic margins on tty? */ 436: if (!XN && *bufptr == '\n') 437: /* need we simulate XN? */ 438: restart = 0; 439: /* skip the newline */ 440: } 441: else { /* cursor just hangs there */ 442: #ifdef INNERSEARCH 443: if (outputok) 444: #endif 445: putchar('\n') FLUSH; 446: /* so move it down ourselves */ 447: if (*bufptr == '\n') 448: restart = 0; 449: /* simulate XN if need be */ 450: } 451: #ifdef CLEAREOL 452: /* #ifdef INNERSEARCH 453: if (outputok) 454: #endif 455: maybe_eol(); */ /* PWP *//* comment this out for now 456: until I am sure it is 457: needed*/ 458: 459: #endif CLEAREOL 460: } 461: 462: /* handle normal end of output line formalities */ 463: 464: if (highlight == artline) { 465: /* were we highlighting line? */ 466: if (marking == STANDOUT) 467: un_standout(); 468: else 469: un_underline(); 470: highlight = -1; /* no more we are */ 471: } 472: artline++; /* count the line just printed */ 473: if (artline - LINES + 1 > topline) 474: /* did we just scroll top line off? */ 475: topline = artline - LINES + 1; 476: /* then recompute top line # */ 477: } 478: 479: /* determine actual position in file */ 480: 481: if (restart) /* stranded somewhere in the buffer? */ 482: artpos += restart - blinebeg; 483: /* just calculate position */ 484: else /* no, ftell will do */ 485: artpos = ftell(artfp); 486: /* so do ftell */ 487: vwtary(artline,artpos); /* remember pos in file */ 488: } /* end of line loop */ 489: 490: #ifdef INNERSEARCH 491: innersearch = 0; 492: if (hide_everything) { 493: hide_everything = FALSE; 494: *buf = Ctl('l'); 495: goto fake_command; 496: } 497: #endif 498: if (linenum >= 32700)/* did last line have formfeed? */ 499: vwtary(artline-1,-vrdary(artline-1)); 500: /* remember by negating pos in file */ 501: 502: special = FALSE; /* end of page, so reset page length */ 503: firstpage = FALSE; /* and say it is not 1st time thru */ 504: 505: /* extra loop bombout */ 506: 507: if (artpos == artsize) {/* did we just now reach EOF? */ 508: mode = oldmode; 509: return DA_NORM; /* avoid --MORE--(100%) */ 510: } 511: 512: /* not done with this article, so pretend we are a pager */ 513: 514: reask_pager: 515: unflush_output(); /* disable any ^O in effect */ 516: standout(); /* enter standout mode */ 517: printf("--MORE--(%ld%%)",(long)(artpos*100/artsize)); 518: un_standout(); /* leave standout mode */ 519: fflush(stdout); 520: /* reinp_pager: /* unused, commented for lint */ 521: eat_typeahead(); 522: #ifdef DEBUGGING 523: if (debug & DEB_CHECKPOINTING) { 524: printf("(%d %d %d)",checkcount,linenum,artline); 525: fflush(stdout); 526: } 527: #endif 528: if (checkcount >= docheckwhen && 529: linenum == LINES && 530: (artline > 40 || checkcount >= docheckwhen+10) ) { 531: /* while he is reading a whole page */ 532: /* in an article he is interested in */ 533: checkcount = 0; 534: checkpoint_rc(); /* update .newsrc */ 535: } 536: collect_subjects(); /* loads subject cache until */ 537: /* input is pending */ 538: mode = 'p'; 539: getcmd(buf); 540: if (errno) { 541: if (LINES < 100 && !int_count) 542: *buf = '\f';/* on CONT fake up refresh */ 543: else { 544: *buf = 'q'; /* on INTR or paper just quit */ 545: } 546: } 547: carriage_return(); 548: #ifndef CLEAREOL 549: erase_eol(); /* and erase the prompt */ 550: #else 551: if (erase_screen && can_home_clear) /* PWP was here */ 552: clear_rest(); 553: else 554: erase_eol(); /* and erase the prompt */ 555: #endif CLEAREOL 556: fflush(stdout); 557: 558: fake_command: /* used by innersearch */ 559: 560: /* parse and process pager command */ 561: 562: switch (page_switch()) { 563: case PS_ASK: /* reprompt "--MORE--..." */ 564: goto reask_pager; 565: case PS_RAISE: /* reparse on article level */ 566: mode = oldmode; 567: return DA_RAISE; 568: case PS_TOEND: /* fast pager loop exit */ 569: mode = oldmode; 570: return DA_TOEND; 571: case PS_NORM: /* display more article */ 572: break; 573: } 574: } /* end of page loop */ 575: } 576: 577: /* process pager commands */ 578: 579: int 580: page_switch() 581: { 582: register char *s; 583: 584: switch (*buf) { 585: case 'd': 586: case Ctl('d'): /* half page */ 587: special = TRUE; 588: slines = LINES / 2 + 1; 589: if (marking && *blinebeg != '\f' 590: #ifdef CUSTOMLINES 591: && (!pagestop || blinebeg != art_buf || 592: !execute(&page_compex,blinebeg)) 593: #endif 594: ) { 595: up_line(); 596: highlight = --artline; 597: restart = blinebeg; 598: artpos = alinebeg; 599: } 600: return PS_NORM; 601: case '!': /* shell escape */ 602: escapade(); 603: return PS_ASK; 604: #ifdef INNERSEARCH 605: case Ctl('i'): 606: gline = 3; 607: sprintf(cmd_buf,"^[^%c]",*blinebeg); 608: compile(&gcompex,cmd_buf,TRUE,TRUE); 609: goto caseG; 610: case Ctl('g'): 611: gline = 3; 612: compile(&gcompex,"^Subject:",TRUE,TRUE); 613: goto caseG; 614: case 'g': /* in-article search */ 615: if (!finish_command(FALSE))/* get rest of command */ 616: return PS_ASK; 617: s = buf+1; 618: if (isspace(*s)) 619: s++; 620: if ((s = compile(&gcompex,s,TRUE,TRUE)) != Nullch) { 621: /* compile regular expression */ 622: printf("\n%s\n",s) FLUSH; 623: return PS_ASK; 624: } 625: carriage_return(); 626: erase_eol(); /* erase the prompt */ 627: /* FALL THROUGH */ 628: caseG: 629: case 'G': { 630: /* ART_LINE lines_to_skip = 0; */ 631: ART_POS start_where; 632: 633: if (gline < 0 || gline > LINES-2) 634: gline = LINES-2; 635: #ifdef DEBUGGING 636: if (debug & DEB_INNERSRCH) 637: printf("Start here? %d >=? %d\n",topline + gline + 1,artline) 638: FLUSH; 639: #endif 640: if (*buf == Ctl('i') || topline+gline+1 >= artline) 641: start_where = artpos; 642: /* in case we had a line wrap */ 643: else { 644: start_where = vrdary(topline+gline+1); 645: if (start_where < 0) 646: start_where = -start_where; 647: } 648: if (start_where < htype[PAST_HEADER].ht_minpos) 649: start_where = htype[PAST_HEADER].ht_minpos; 650: fseek(artfp,(long)start_where,0); 651: innersearch = 0; /* assume not found */ 652: while (fgets(buf, sizeof buf, artfp) != Nullch) { 653: /* lines_to_skip++; NOT USED NOW */ 654: #ifdef DEBUGGING 655: if (debug & DEB_INNERSRCH) 656: printf("Test %s",buf) FLUSH; 657: #endif 658: if (execute(&gcompex,buf) != Nullch) { 659: innersearch = ftell(artfp); 660: break; 661: } 662: } 663: if (!innersearch) { 664: fseek(artfp,artpos,0); 665: fputs("(Not found)",stdout) FLUSH; 666: return PS_ASK; 667: } 668: #ifdef DEBUGGING 669: if (debug & DEB_INNERSRCH) 670: printf("On page? %ld <=? %ld\n",(long)innersearch,(long)artpos) 671: FLUSH; 672: #endif 673: if (innersearch <= artpos) { /* already on page? */ 674: if (innersearch < artpos) { 675: artline = topline+1; 676: while (vrdary(artline) < innersearch) 677: artline++; 678: } 679: highlight = artline - 1; 680: #ifdef DEBUGGING 681: if (debug & DEB_INNERSRCH) 682: printf("@ %d\n",highlight) FLUSH; 683: #endif 684: topline = highlight - gline; 685: if (topline < -1) 686: topline = -1; 687: *buf = '\f'; /* fake up a refresh */ 688: innersearch = 0; 689: return page_switch(); 690: } 691: else { /* who knows how many lines it is? */ 692: do_fseek = TRUE; 693: hide_everything = TRUE; 694: } 695: return PS_NORM; 696: } 697: #else 698: case 'g': case 'G': case Ctl('g'): 699: notincl("g"); 700: return PS_ASK; 701: #endif 702: case '\n': /* one line */ 703: special = TRUE; 704: slines = 2; 705: return PS_NORM; 706: #ifdef ROTATION 707: case 'X': 708: rotate = !rotate; 709: /* FALL THROUGH */ 710: #endif 711: case 'l': 712: case '\f': /* refresh screen */ 713: #ifdef DEBUGGING 714: if (debug & DEB_INNERSRCH) { 715: printf("Topline = %d",topline) FLUSH; 716: gets(buf); 717: } 718: #endif 719: clear(); 720: do_fseek = TRUE; 721: artline = topline; 722: if (artline < 0) 723: artline = 0; 724: firstpage = (topline < 0); 725: return PS_NORM; 726: case 'b': 727: case '\b': /* I like backspace for this -- PWP */ 728: /* Leaving it undocumented in case */ 729: /* I want to steal the key--LAW */ 730: case Ctl('b'): { /* back up a page */ 731: ART_LINE target; 732: 733: #ifndef CLEAREOL 734: clear(); 735: #else 736: if (can_home_clear) /* if we can home do it -- PWP */ 737: home_cursor(); 738: else 739: clear(); 740: 741: #endif CLEAREOL 742: do_fseek = TRUE; /* reposition article file */ 743: target = topline - (LINES - 2); 744: artline = topline; 745: do { 746: artline--; 747: } while (artline >= 0 && artline > target && 748: vrdary(artline-1) >= 0); 749: topline = artline; 750: /* remember top line of screen */ 751: /* (line # within article file) */ 752: if (artline < 0) 753: artline = 0; 754: firstpage = (topline < 0); 755: return PS_NORM; 756: } 757: case 'h': { /* help */ 758: int cmd; 759: 760: if ((cmd = help_page()) > 0) 761: pushchar(cmd); 762: return PS_ASK; 763: } 764: case '\177': 765: case '\0': /* treat del,break as 'n' */ 766: *buf = 'n'; 767: /* FALL THROUGH */ 768: case 'k': case 'K': 769: case 'n': case 'N': case Ctl('n'): 770: case 's': case 'S': 771: case 'u': 772: case 'w': case 'W': 773: case '|': 774: mark_as_read(art); /* mark article as read */ 775: /* FALL THROUGH */ 776: case '#': 777: case '$': 778: case '&': 779: case '-': 780: case '.': 781: case '/': 782: case '1': case '2': case '3': case '4': case '5': 783: case '6': case '7': case '8': case '9': 784: case '=': 785: case '?': 786: case 'c': case 'C': 787: case 'f': case 'F': 788: case 'j': 789: case Ctl('k'): 790: case 'm': case 'M': 791: case 'p': case 'P': case Ctl('p'): 792: case 'Q': 793: case 'r': case 'R': case Ctl('r'): 794: case 'v': 795: case 'Y': 796: #ifndef ROTATION 797: case 'x': case 'X': 798: #endif 799: case Ctl('x'): 800: case '^': 801: 802: #ifdef ROTATION 803: rotate = FALSE; 804: #endif 805: reread = FALSE; 806: do_hiding = TRUE; 807: if (index("nNpP",*buf) == Nullch && 808: index("wWsS!&|/?123456789.",*buf) != Nullch) { 809: setdfltcmd(); 810: standout(); /* enter standout mode */ 811: printf(prompt,mailcall,dfltcmd); 812: /* print prompt, whatever it is */ 813: un_standout(); /* leave standout mode */ 814: putchar(' '); 815: fflush(stdout); 816: } 817: return PS_RAISE; /* and pretend we were at end */ 818: #ifdef ROTATION 819: case 'x': 820: rotate = TRUE; 821: /* FALL THROUGH */ 822: #endif 823: case 'y': 824: case Ctl('v'): /* I like emacs -- PWP */ 825: /* Leaving it undocumented in case */ 826: /* I want to steal the key--LAW */ 827: case ' ': /* continue current article */ 828: if (erase_screen) { /* -e? */ 829: #ifndef CLEAREOL 830: clear(); /* clear screen */ 831: #else 832: if (can_home_clear) /* if we can home do it -- PWP */ 833: home_cursor(); 834: else 835: clear(); /* else clear screen */ 836: 837: #endif CLEAREOL 838: if (*blinebeg != '\f' 839: #ifdef CUSTOMLINES 840: && (!pagestop || blinebeg != art_buf || 841: !execute(&page_compex,blinebeg)) 842: #endif 843: ) { 844: restart = blinebeg; 845: artline--; /* restart this line */ 846: artpos = alinebeg; 847: if (marking) /* and mark repeated line */ 848: highlight = artline; 849: } 850: topline = artline; 851: /* and remember top line of screen */ 852: /* (line # within article file) */ 853: } 854: else if (marking && *blinebeg != '\f' 855: #ifdef CUSTOMLINES 856: && (!pagestop || blinebeg != art_buf || 857: !execute(&page_compex,blinebeg)) 858: #endif 859: ) { 860: /* are we marking repeats? */ 861: up_line(); /* go up one line */ 862: highlight = --artline;/* and get ready to highlight */ 863: restart = blinebeg; /* the old line */ 864: artpos = alinebeg; 865: } 866: return PS_NORM; 867: case 'q': /* quit this article? */ 868: do_hiding = TRUE; 869: return PS_TOEND; 870: default: 871: fputs(hforhelp,stdout) FLUSH; 872: settle_down(); 873: return PS_ASK; 874: } 875: } 876: 877: #ifdef INNERSEARCH 878: bool 879: innermore() 880: { 881: if (artpos < innersearch) { /* not even on page yet? */ 882: #ifdef DEBUGGING 883: if (debug & DEB_INNERSRCH) 884: printf("Not on page %ld < %ld\n",(long)artpos,(long)innersearch) 885: FLUSH; 886: #endif 887: return TRUE; 888: } 889: if (artpos == innersearch) { /* just got onto page? */ 890: isrchline = artline; /* remember first line after */ 891: highlight = artline - 1; 892: #ifdef DEBUGGING 893: if (debug & DEB_INNERSRCH) 894: printf("There it is %ld = %ld, %d @ %d\n",(long)artpos, 895: (long)innersearch,hide_everything,highlight) FLUSH; 896: #endif 897: if (hide_everything) { /* forced refresh? */ 898: topline = highlight - gline; 899: if (topline < -1) 900: topline = -1; 901: return FALSE; /* let refresh do it all */ 902: } 903: } 904: #ifdef DEBUGGING 905: if (debug & DEB_INNERSRCH) 906: printf("Not far enough? %d <? %d + %d\n",artline,isrchline,gline) 907: FLUSH; 908: #endif 909: if (artline < isrchline + gline) { 910: return TRUE; 911: } 912: return FALSE; 913: } 914: #endif
Defined functions
art_init
defined in line 75; used 2 times
- in /usr/src/new/rn/art.h line 16
- in /usr/src/new/rn/init.c line 169
do_article
defined in line 81; used 2 times
- in /usr/src/new/rn/art.h line 17
- in /usr/src/new/rn/ng.c line 423
Defined variables
innersearch
defined in line 62; used 14 times
Defined macros
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Last modified: 1987-03-16
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