bookloupe/bookloupe.c
author ali <ali@juiblex.co.uk>
Sat May 25 23:57:38 2013 +0100 (2013-05-25)
changeset 52 a1fd8d3f0940
parent 51 0d08cd5055d5
child 53 4c8606eb60c1
permissions -rw-r--r--
Break check_for_pling_scanno() out
     1 /*************************************************************************/
     2 /* bookloupe--check for assorted weirdnesses in a PG candidate text file */
     3 /*                                                                       */
     4 /* Copyright 2000-2005 Jim Tinsley <jtinsley@pobox.com>                  */
     5 /* Copyright 2012- J. Ali Harlow <ali@juiblex.co.uk>                     */
     6 /*                                                                       */
     7 /* This program is free software; you can redistribute it and/or modify  */
     8 /* it under the terms of the GNU General Public License as published by  */
     9 /* the Free Software Foundation; either version 2 of the License, or     */
    10 /* (at your option) any later version.                                   */
    11 /*                                                                       */
    12 /* This program is distributed in the hope that it will be useful,       */
    13 /* but WITHOUT ANY WARRANTY; without even the implied warranty of        */
    14 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the          */
    15 /* GNU General Public License for more details.                          */
    16 /*                                                                       */
    17 /* You should have received a copy of the GNU General Public License     */
    18 /* along with this program. If not, see <http://www.gnu.org/licenses/>.  */
    19 /*************************************************************************/
    20 
    21 #include <stdio.h>
    22 #include <stdlib.h>
    23 #include <string.h>
    24 #include <ctype.h>
    25 
    26 #define MAXWORDLEN    80    /* max length of one word             */
    27 #define LINEBUFSIZE 2048    /* buffer size for an input line      */
    28 
    29 #define MAX_USER_TYPOS 1000
    30 #define USERTYPO_FILE "gutcheck.typ"
    31 
    32 #ifndef MAX_PATH
    33 #define MAX_PATH 16384
    34 #endif
    35 
    36 char aline[LINEBUFSIZE];
    37 char prevline[LINEBUFSIZE];
    38 
    39 /* Common typos. */
    40 char *typo[] = {
    41     "teh", "th", "og", "fi", "ro", "adn", "yuo", "ot", "fo", "thet", "ane",
    42     "nad", "te", "ig", "acn",  "ahve", "alot", "anbd", "andt", "awya", "aywa",
    43     "bakc", "om", "btu", "byt", "cna", "cxan", "coudl", "dont", "didnt",
    44     "couldnt", "wouldnt", "doesnt", "shouldnt", "doign", "ehr", "hmi", "hse",
    45     "esle", "eyt", "fitrs", "firts", "foudn", "frmo", "fromt", "fwe", "gaurd",
    46     "gerat", "goign", "gruop", "haev", "hda", "hearign", "seeign", "sayign",
    47     "herat", "hge", "hsa", "hsi", "hte", "htere", "htese", "htey", "htis",
    48     "hvae", "hwich", "idae", "ihs", "iits", "int", "iwll", "iwth", "jsut",
    49     "loev", "sefl", "myu", "nkow", "nver", "nwe", "nwo", "ocur", "ohter",
    50     "omre", "onyl", "otehr", "otu", "owrk", "owuld", "peice", "peices",
    51     "peolpe", "peopel", "perhasp", "perhpas", "pleasent", "poeple", "porblem",
    52     "porblems", "rwite", "saidt", "saidh", "saids", "seh", "smae", "smoe",
    53     "sohw", "stnad", "stopry", "stoyr", "stpo", "tahn", "taht", "tath",
    54     "tehy", "tghe", "tghis", "theri", "theyll", "thgat", "thge", "thier",
    55     "thna", "thne", "thnig", "thnigs", "thsi", "thsoe", "thta", "timne",
    56     "tirne", "tkae", "tthe", "tyhat", "tyhe", "veyr", "vou", "vour", "vrey",
    57     "waht", "wasnt", "awtn", "watn", "wehn", "whic", "whcih", "whihc", "whta",
    58     "wihch", "wief", "wiht", "witha", "wiull", "wnat", "wnated", "wnats",
    59     "woh", "wohle", "wokr", "woudl", "wriet", "wrod", "wroet", "wroking",
    60     "wtih", "wuould", "wya", "yera", "yeras", "yersa", "yoiu", "youve",
    61     "ytou", "yuor", "abead", "ahle", "ahout", "ahove", "altbough", "balf",
    62     "bardly", "bas", "bave", "baving", "bebind", "beld", "belp", "belped",
    63     "ber", "bere", "bim", "bis", "bome", "bouse", "bowever", "buge",
    64     "dehates", "deht", "han", "hecause", "hecome", "heen", "hefore", "hegan",
    65     "hegin", "heing", "helieve", "henefit", "hetter", "hetween", "heyond",
    66     "hig", "higber", "huild", "huy", "hy", "jobn", "joh", "meanwbile",
    67     "memher", "memhers", "numher", "numhers", "perbaps", "prohlem", "puhlic",
    68     "witbout", "arn", "hin", "hirn", "wrok", "wroked", "amd", "aud",
    69     "prornise", "prornised", "modem", "bo", "heside", "chapteb", "chaptee",
    70     "se", ""
    71 };
    72 
    73 char *usertypo[MAX_USER_TYPOS];
    74 
    75 /* Common abbreviations and other OK words not to query as typos. */
    76 char *okword[] = {
    77     "mr", "mrs", "mss", "mssrs", "ft", "pm", "st", "dr", "hmm", "h'm", "hmmm",
    78     "rd", "sh", "br", "pp", "hm", "cf", "jr", "sr", "vs", "lb", "lbs", "ltd",
    79     "pompeii","hawaii","hawaiian", "hotbed", "heartbeat", "heartbeats",
    80     "outbid", "outbids", "frostbite", "frostbitten", ""
    81 };
    82 
    83 /* Common abbreviations that cause otherwise unexplained periods. */
    84 char *abbrev[] = {
    85     "cent", "cents", "viz", "vol", "vols", "vid", "ed", "al", "etc", "op",
    86     "cit", "deg", "min", "chap", "oz", "mme", "mlle", "mssrs", ""
    87 };
    88 
    89 /*
    90  * Two-Letter combinations that rarely if ever start words,
    91  * but are common scannos or otherwise common letter combinations.
    92  */
    93 char *nostart[] = {
    94     "hr", "hl", "cb", "sb", "tb", "wb", "tl", "tn", "rn", "lt", "tj", ""
    95 };
    96 
    97 /*
    98  * Two-Letter combinations that rarely if ever end words,
    99  * but are common scannos or otherwise common letter combinations.
   100  */
   101 char *noend[] = {
   102     "cb", "gb", "pb", "sb", "tb", "wh", "fr", "br", "qu", "tw", "gl", "fl",
   103     "sw", "gr", "sl", "cl", "iy", ""
   104 };
   105 
   106 char *markup[] = {
   107     "a", "b", "big", "blockquote", "body", "br", "center", "col", "div", "em",
   108     "font", "h1", "h2", "h3", "h4", "h5", "h6", "head", "hr", "html", "i",
   109     "img", "li", "meta", "ol", "p", "pre", "small", "span", "strong", "sub",
   110     "sup", "table", "td", "tfoot", "thead", "title", "tr", "tt", "u", "ul", ""
   111 };
   112 
   113 char *DPmarkup[] = {
   114     "<sc>", "</sc>", "/*", "*/", "/#", "#/", "/$", "$/", "<tb>", ""
   115 };
   116 
   117 char *nocomma[] = {
   118     "the", "it's", "their", "an", "mrs", "a", "our", "that's", "its", "whose",
   119     "every", "i'll", "your", "my", "mr", "mrs", "mss", "mssrs", "ft", "pm",
   120     "st", "dr", "rd", "pp", "cf", "jr", "sr", "vs", "lb", "lbs", "ltd", "i'm",
   121     "during", "let", "toward", "among", ""
   122 };
   123 
   124 char *noperiod[] = {
   125     "every", "i'm", "during", "that's", "their", "your", "our", "my", "or",
   126     "and", "but", "as", "if", "the", "its", "it's", "until", "than", "whether",
   127     "i'll", "whose", "who", "because", "when", "let", "till", "very", "an",
   128     "among", "those", "into", "whom", "having", "thence", ""
   129 }; 
   130 
   131 char vowels[] = "aeiouàáâãäæèéêëìíîïòóôõöùúûü";
   132 
   133 struct {
   134     char *htmlent;
   135     char *htmlnum;
   136     char *textent;
   137 } entities[] = {
   138     "&amp;",	"&#38;",     "&", 
   139     "&lt;",	"&#60;",     "<",
   140     "&gt;",	"&#62;",     ">",
   141     "&deg;",	"&#176;",    " degrees",
   142     "&pound;",	"&#163;",    "L",
   143     "&quot;",	"&#34;",     "\"", /* quotation mark = APL quote */
   144     "&OElig;",	"&#338;",    "OE", /* latin capital ligature OE */
   145     "&oelig;",	"&#339;",    "oe", /* latin small ligature oe */
   146     "&Scaron;",	"&#352;",    "S", /* latin capital letter S with caron */
   147     "&scaron;",	"&#353;",    "s", /* latin small letter s with caron */
   148     "&Yuml;",	"&#376;",    "Y", /* latin capital letter Y with diaeresis */
   149     "&circ;",	"&#710;",    "",  /* modifier letter circumflex accent */
   150     "&tilde;",	"&#732;",    "~", /* small tilde, U+02DC ISOdia */
   151     "&ensp;",	"&#8194;",   " ", /* en space, U+2002 ISOpub */
   152     "&emsp;",	"&#8195;",   " ", /* em space, U+2003 ISOpub */
   153     "&thinsp;",	"&#8201;",   " ", /* thin space, U+2009 ISOpub */
   154     "&ndash;",	"&#8211;",   "-", /* en dash, U+2013 ISOpub */
   155     "&mdash;",	"&#8212;",   "--", /* em dash, U+2014 ISOpub */
   156     "&rsquo;",	"&#8217;",   "'", /* right single quotation mark */
   157     "&sbquo;",	"&#8218;",   "'", /* single low-9 quotation mark */
   158     "&ldquo;",	"&#8220;",   "\"", /* left double quotation mark */
   159     "&rdquo;",	"&#8221;",   "\"", /* right double quotation mark */
   160     "&bdquo;",	"&#8222;",   "\"", /* double low-9 quotation mark */
   161     "&lsaquo;",	"&#8249;",   "\"", /* single left-pointing angle quotation mark */
   162     "&rsaquo;",	"&#8250;",   "\"", /* single right-pointing angle quotation mark */
   163     "&nbsp;",	"&#160;",    " ", /* no-break space = non-breaking space, */
   164     "&iexcl;",	"&#161;",    "!", /* inverted exclamation mark */
   165     "&cent;",	"&#162;",    "c", /* cent sign */
   166     "&pound;",	"&#163;",    "L", /* pound sign */
   167     "&curren;",	"&#164;",    "$", /* currency sign */
   168     "&yen;",	"&#165;",    "Y", /* yen sign = yuan sign */
   169     "&sect;",	"&#167;",    "--", /* section sign */
   170     "&uml;",	"&#168;",    " ", /* diaeresis = spacing diaeresis */
   171     "&copy;",	"&#169;",    "(C) ", /* copyright sign */
   172     "&ordf;",	"&#170;",    " ", /* feminine ordinal indicator */
   173     "&laquo;",	"&#171;",    "\"", /* left-pointing double angle quotation mark */
   174     "&shy;",	"&#173;",    "-", /* soft hyphen = discretionary hyphen */
   175     "&reg;",	"&#174;",    "(R) ", /* registered sign = registered trade mark sign */
   176     "&macr;",	"&#175;",    " ", /* macron = spacing macron = overline */
   177     "&deg;",	"&#176;",    " degrees", /* degree sign */
   178     "&plusmn;",	"&#177;",    "+-", /* plus-minus sign = plus-or-minus sign */
   179     "&sup2;",	"&#178;",    "2", /* superscript two = superscript digit two */
   180     "&sup3;",	"&#179;",    "3", /* superscript three = superscript digit three */
   181     "&acute;",	"&#180;",    " ", /* acute accent = spacing acute */
   182     "&micro;",	"&#181;",    "m", /* micro sign */
   183     "&para;",	"&#182;",    "--", /* pilcrow sign = paragraph sign */
   184     "&cedil;",	"&#184;",    " ", /* cedilla = spacing cedilla */
   185     "&sup1;",	"&#185;",    "1", /* superscript one = superscript digit one */
   186     "&ordm;",	"&#186;",    " ", /* masculine ordinal indicator */
   187     "&raquo;",	"&#187;",    "\"", /* right-pointing double angle quotation mark */
   188     "&frac14;",	"&#188;",    "1/4", /* vulgar fraction one quarter */
   189     "&frac12;",	"&#189;",    "1/2", /* vulgar fraction one half */
   190     "&frac34;",	"&#190;",    "3/4", /* vulgar fraction three quarters */
   191     "&iquest;",	"&#191;",    "?", /* inverted question mark */
   192     "&Agrave;",	"&#192;",    "A", /* latin capital letter A with grave */
   193     "&Aacute;",	"&#193;",    "A", /* latin capital letter A with acute */
   194     "&Acirc;",	"&#194;",    "A", /* latin capital letter A with circumflex */
   195     "&Atilde;",	"&#195;",    "A", /* latin capital letter A with tilde */
   196     "&Auml;",	"&#196;",    "A", /* latin capital letter A with diaeresis */
   197     "&Aring;",	"&#197;",    "A", /* latin capital letter A with ring above */
   198     "&AElig;",	"&#198;",    "AE", /* latin capital letter AE */
   199     "&Ccedil;",	"&#199;",    "C", /* latin capital letter C with cedilla */
   200     "&Egrave;",	"&#200;",    "E", /* latin capital letter E with grave */
   201     "&Eacute;",	"&#201;",    "E", /* latin capital letter E with acute */
   202     "&Ecirc;",	"&#202;",    "E", /* latin capital letter E with circumflex */
   203     "&Euml;",	"&#203;",    "E", /* latin capital letter E with diaeresis */
   204     "&Igrave;",	"&#204;",    "I", /* latin capital letter I with grave */
   205     "&Iacute;",	"&#205;",    "I", /* latin capital letter I with acute */
   206     "&Icirc;",	"&#206;",    "I", /* latin capital letter I with circumflex */
   207     "&Iuml;",	"&#207;",    "I", /* latin capital letter I with diaeresis */
   208     "&ETH;",	"&#208;",    "E", /* latin capital letter ETH */
   209     "&Ntilde;",	"&#209;",    "N", /* latin capital letter N with tilde */
   210     "&Ograve;",	"&#210;",    "O", /* latin capital letter O with grave */
   211     "&Oacute;",	"&#211;",    "O", /* latin capital letter O with acute */
   212     "&Ocirc;",	"&#212;",    "O", /* latin capital letter O with circumflex */
   213     "&Otilde;",	"&#213;",    "O", /* latin capital letter O with tilde */
   214     "&Ouml;",	"&#214;",    "O", /* latin capital letter O with diaeresis */
   215     "&times;",	"&#215;",    "*", /* multiplication sign */
   216     "&Oslash;",	"&#216;",    "O", /* latin capital letter O with stroke */
   217     "&Ugrave;",	"&#217;",    "U", /* latin capital letter U with grave */
   218     "&Uacute;",	"&#218;",    "U", /* latin capital letter U with acute */
   219     "&Ucirc;",	"&#219;",    "U", /* latin capital letter U with circumflex */
   220     "&Uuml;",	"&#220;",    "U", /* latin capital letter U with diaeresis */
   221     "&Yacute;",	"&#221;",    "Y", /* latin capital letter Y with acute */
   222     "&THORN;",	"&#222;",    "TH", /* latin capital letter THORN */
   223     "&szlig;",	"&#223;",    "sz", /* latin small letter sharp s = ess-zed */
   224     "&agrave;",	"&#224;",    "a", /* latin small letter a with grave */
   225     "&aacute;",	"&#225;",    "a", /* latin small letter a with acute */
   226     "&acirc;",	"&#226;",    "a", /* latin small letter a with circumflex */
   227     "&atilde;",	"&#227;",    "a", /* latin small letter a with tilde */
   228     "&auml;",	"&#228;",    "a", /* latin small letter a with diaeresis */
   229     "&aring;",	"&#229;",    "a", /* latin small letter a with ring above */
   230     "&aelig;",	"&#230;",    "ae", /* latin small letter ae */
   231     "&ccedil;",	"&#231;",    "c", /* latin small letter c with cedilla */
   232     "&egrave;",	"&#232;",    "e", /* latin small letter e with grave */
   233     "&eacute;",	"&#233;",    "e", /* latin small letter e with acute */
   234     "&ecirc;",	"&#234;",    "e", /* latin small letter e with circumflex */
   235     "&euml;",	"&#235;",    "e", /* latin small letter e with diaeresis */
   236     "&igrave;",	"&#236;",    "i", /* latin small letter i with grave */
   237     "&iacute;",	"&#237;",    "i", /* latin small letter i with acute */
   238     "&icirc;",	"&#238;",    "i", /* latin small letter i with circumflex */
   239     "&iuml;",	"&#239;",    "i", /* latin small letter i with diaeresis */
   240     "&eth;",	"&#240;",    "eth", /* latin small letter eth */
   241     "&ntilde;",	"&#241;",    "n", /* latin small letter n with tilde */
   242     "&ograve;",	"&#242;",    "o", /* latin small letter o with grave */
   243     "&oacute;",	"&#243;",    "o", /* latin small letter o with acute */
   244     "&ocirc;",	"&#244;",    "o", /* latin small letter o with circumflex */
   245     "&otilde;",	"&#245;",    "o", /* latin small letter o with tilde */
   246     "&ouml;",	"&#246;",    "o", /* latin small letter o with diaeresis */
   247     "&divide;",	"&#247;",    "/", /* division sign */
   248     "&oslash;",	"&#248;",    "o", /* latin small letter o with stroke */
   249     "&ugrave;",	"&#249;",    "u", /* latin small letter u with grave */
   250     "&uacute;",	"&#250;",    "u", /* latin small letter u with acute */
   251     "&ucirc;",	"&#251;",    "u", /* latin small letter u with circumflex */
   252     "&uuml;",	"&#252;",    "u", /* latin small letter u with diaeresis */
   253     "&yacute;",	"&#253;",    "y", /* latin small letter y with acute */
   254     "&thorn;",	"&#254;",    "th", /* latin small letter thorn */
   255     "&yuml;",	"&#255;",    "y", /* latin small letter y with diaeresis */
   256     "", ""
   257 };
   258 
   259 /* special characters */
   260 #define CHAR_SPACE        32
   261 #define CHAR_TAB           9
   262 #define CHAR_LF           10
   263 #define CHAR_CR           13
   264 #define CHAR_DQUOTE       34
   265 #define CHAR_SQUOTE       39
   266 #define CHAR_OPEN_SQUOTE  96
   267 #define CHAR_TILDE       126
   268 #define CHAR_ASTERISK     42
   269 #define CHAR_FORESLASH    47
   270 #define CHAR_CARAT        94
   271 
   272 #define CHAR_UNDERSCORE    '_'
   273 #define CHAR_OPEN_CBRACK   '{'
   274 #define CHAR_CLOSE_CBRACK  '}'
   275 #define CHAR_OPEN_RBRACK   '('
   276 #define CHAR_CLOSE_RBRACK  ')'
   277 #define CHAR_OPEN_SBRACK   '['
   278 #define CHAR_CLOSE_SBRACK  ']'
   279 
   280 /* longest and shortest normal PG line lengths */
   281 #define LONGEST_PG_LINE   75
   282 #define WAY_TOO_LONG      80
   283 #define SHORTEST_PG_LINE  55
   284 
   285 #define SWITCHES "ESTPXLOYHWVMUD" /* switches:-                            */
   286                                   /*     D - ignore DP-specific markup     */
   287                                   /*     E - echo queried line             */
   288                                   /*     S - check single quotes           */
   289                                   /*     T - check common typos            */
   290                                   /*     P - require closure of quotes on  */
   291                                   /*         every paragraph               */
   292                                   /*     X - "Trust no one" :-) Paranoid!  */
   293                                   /*         Queries everything            */
   294                                   /*     L - line end checking defaults on */
   295                                   /*         -L turns it off               */
   296                                   /*     O - overview. Just shows counts.  */
   297                                   /*     Y - puts errors to stdout         */
   298                                   /*         instead of stderr             */
   299                                   /*     H - Echoes header fields          */
   300                                   /*     M - Ignore markup in < >          */
   301                                   /*     U - Use file of User-defined Typos*/
   302                                   /*     W - Defaults for use on Web upload*/
   303                                   /*     V - Verbose - list EVERYTHING!    */
   304 #define SWITNO 14                 /* max number of switch parms            */
   305                                   /*        - used for defining array-size */
   306 #define MINARGS   1               /* minimum no of args excl switches      */
   307 #define MAXARGS   1               /* maximum no of args excl switches      */
   308 
   309 int pswit[SWITNO];                /* program switches set by SWITCHES      */
   310 
   311 #define ECHO_SWITCH      0
   312 #define SQUOTE_SWITCH    1
   313 #define TYPO_SWITCH      2
   314 #define QPARA_SWITCH     3
   315 #define PARANOID_SWITCH  4
   316 #define LINE_END_SWITCH  5
   317 #define OVERVIEW_SWITCH  6
   318 #define STDOUT_SWITCH    7
   319 #define HEADER_SWITCH    8
   320 #define WEB_SWITCH       9
   321 #define VERBOSE_SWITCH   10
   322 #define MARKUP_SWITCH    11
   323 #define USERTYPO_SWITCH  12
   324 #define DP_SWITCH        13
   325 
   326 long cnt_dquot;       /* for overview mode, count of doublequote queries */
   327 long cnt_squot;       /* for overview mode, count of singlequote queries */
   328 long cnt_brack;       /* for overview mode, count of brackets queries */
   329 long cnt_bin;         /* for overview mode, count of non-ASCII queries */
   330 long cnt_odd;         /* for overview mode, count of odd character queries */
   331 long cnt_long;        /* for overview mode, count of long line errors */
   332 long cnt_short;       /* for overview mode, count of short line queries */
   333 long cnt_punct;       /* for overview mode, count of punctuation and spacing queries */
   334 long cnt_dash;        /* for overview mode, count of dash-related queries */
   335 long cnt_word;        /* for overview mode, count of word queries */
   336 long cnt_html;        /* for overview mode, count of html queries */
   337 long cnt_lineend;     /* for overview mode, count of line-end queries */
   338 long cnt_spacend;     /* count of lines with space at end */
   339 long linecnt;         /* count of total lines in the file */
   340 long checked_linecnt; /* count of lines actually checked */
   341 
   342 void proghelp(void);
   343 void procfile(char *);
   344 
   345 #define LOW_THRESHOLD    0
   346 #define HIGH_THRESHOLD   1
   347 
   348 #define START 0
   349 #define END 1
   350 #define PREV 0
   351 #define NEXT 1
   352 #define FIRST_OF_PAIR 0
   353 #define SECOND_OF_PAIR 1
   354 
   355 #define MAX_WORDPAIR 1000
   356 
   357 char running_from[MAX_PATH];
   358 
   359 int mixdigit(char *);
   360 char *getaword(char *,char *);
   361 int matchword(char *,char *);
   362 char *flgets(char *,int,FILE *,long);
   363 void lowerit(char *);
   364 int gcisalpha(unsigned char);
   365 int gcisdigit(unsigned char);
   366 int gcisletter(unsigned char);
   367 char *gcstrchr(char *s,char c);
   368 void postprocess_for_HTML(char *);
   369 char *linehasmarkup(char *);
   370 char *losemarkup(char *);
   371 int tagcomp(char *,char *);
   372 char *loseentities(char *);
   373 int isroman(char *);
   374 int usertypo_count;
   375 void postprocess_for_DP(char *);
   376 
   377 char wrk[LINEBUFSIZE];
   378 
   379 #define MAX_QWORD 50
   380 #define MAX_QWORD_LENGTH 40
   381 char qword[MAX_QWORD][MAX_QWORD_LENGTH];
   382 char qperiod[MAX_QWORD][MAX_QWORD_LENGTH];
   383 signed int dupcnt[MAX_QWORD];
   384 
   385 int main(int argc,char **argv)
   386 {
   387     char *argsw,*s;
   388     int i,switno,invarg;
   389     char usertypo_file[MAX_PATH];
   390     FILE *usertypofile;
   391     if (strlen(argv[0])<sizeof(running_from))
   392 	/* save the path to the executable */
   393         strcpy(running_from,argv[0]);
   394     /* find out what directory we're running from */
   395     s=running_from+strlen(running_from);
   396     for (;*s!='/' && *s!='\\' && s>=running_from;s--)
   397         *s=0;
   398     switno=strlen(SWITCHES);
   399     for (i=switno;--i>0;)
   400         pswit[i]=0;           /* initialise switches */
   401     /*
   402      * Standard loop to extract switches.
   403      * When we come out of this loop, the arguments will be
   404      * in argv[0] upwards and the switches used will be
   405      * represented by their equivalent elements in pswit[]
   406      */
   407     while (--argc>0 && **++argv=='-')
   408         for (argsw=argv[0]+1;*argsw!='\0';argsw++)
   409             for (i=switno,invarg=1;(--i>=0) && invarg==1;)
   410                 if ((toupper(*argsw))==SWITCHES[i])
   411 		{
   412                     invarg=0;
   413                     pswit[i]=1;
   414 		}
   415     /* Paranoid checking is turned OFF, not on, by its switch */
   416     pswit[PARANOID_SWITCH]^=1;
   417     if (pswit[PARANOID_SWITCH])
   418 	/* if running in paranoid mode force typo checks as well   */
   419         pswit[TYPO_SWITCH]=pswit[TYPO_SWITCH]^1;
   420     /* Line-end checking is turned OFF, not on, by its switch */
   421     pswit[LINE_END_SWITCH]^=1;
   422     /* Echoing is turned OFF, not on, by its switch */
   423     pswit[ECHO_SWITCH]^=1;
   424     if (pswit[OVERVIEW_SWITCH])
   425 	/* just print summary; don't echo */
   426         pswit[ECHO_SWITCH]=0;
   427     /*
   428      * Web uploads - for the moment, this is really just a placeholder
   429      * until we decide what processing we really want to do on web uploads
   430      */
   431     if (pswit[WEB_SWITCH])
   432     {
   433 	/* specific override for web uploads */
   434         pswit[ECHO_SWITCH]=1;
   435         pswit[SQUOTE_SWITCH]=0;
   436         pswit[TYPO_SWITCH]=1;
   437         pswit[QPARA_SWITCH]=0;
   438         pswit[PARANOID_SWITCH]=1;
   439         pswit[LINE_END_SWITCH]=0;
   440         pswit[OVERVIEW_SWITCH]=0;
   441         pswit[STDOUT_SWITCH]=0;
   442         pswit[HEADER_SWITCH]=1;
   443         pswit[VERBOSE_SWITCH]=0;
   444         pswit[MARKUP_SWITCH]=0;
   445         pswit[USERTYPO_SWITCH]=0;
   446         pswit[DP_SWITCH]=0;
   447     }
   448     if (argc<MINARGS || argc>MAXARGS)
   449     {
   450 	/* check number of args */
   451         proghelp();
   452         return 1;
   453     }
   454     /* read in the user-defined stealth scanno list */
   455     if (pswit[USERTYPO_SWITCH])
   456     {
   457 	/* ... we were told we had one! */
   458         usertypofile=fopen(USERTYPO_FILE,"rb");
   459         if (!usertypofile)
   460 	{
   461 	    /* not in cwd. try excuteable directory. */
   462             strcpy(usertypo_file,running_from);
   463             strcat(usertypo_file,USERTYPO_FILE);
   464             usertypofile=fopen(usertypo_file,"rb");
   465             if (!usertypofile) {
   466 		/* we ain't got no user typo file! */
   467                 printf("   --> I couldn't find gutcheck.typ "
   468 		  "-- proceeding without user typos.\n");
   469 	    }
   470 	}
   471         usertypo_count=0;
   472         if (usertypofile)
   473 	{
   474 	    /* we managed to open a User Typo File! */
   475             if (pswit[USERTYPO_SWITCH])
   476 	    {
   477                 while (flgets(aline,LINEBUFSIZE-1,usertypofile,
   478 		  (long)usertypo_count))
   479 		{
   480                     if (strlen(aline)>1)
   481 		    {
   482                         if ((int)*aline>33)
   483 			{
   484                             s=malloc(strlen(aline)+1);
   485                             if (!s)
   486 			    {
   487                                 fprintf(stderr,"bookloupe: cannot get enough "
   488 				  "memory for user typo file!\n");
   489                                 exit(1);
   490 			    }
   491                             strcpy(s,aline);
   492                             usertypo[usertypo_count]=s;
   493                             usertypo_count++;
   494                             if (usertypo_count>=MAX_USER_TYPOS)
   495 			    {
   496                                 printf("   --> Only %d user-defined typos "
   497 				  "allowed: ignoring the rest\n",
   498 				  MAX_USER_TYPOS);
   499                                 break;
   500 			    }
   501 			}
   502 		    }
   503 		}
   504 	    }
   505             fclose(usertypofile);
   506 	}
   507     }
   508     fprintf(stderr,"bookloupe: Check and report on an e-text\n");
   509     cnt_dquot=cnt_squot=cnt_brack=cnt_bin=cnt_odd=cnt_long=
   510     cnt_short=cnt_punct=cnt_dash=cnt_word=cnt_html=cnt_lineend=
   511     cnt_spacend=0;
   512     procfile(argv[0]);
   513     if (pswit[OVERVIEW_SWITCH])
   514     {
   515 	printf("    Checked %ld lines of %ld (head+foot = %ld)\n\n",
   516 	  checked_linecnt,linecnt,linecnt-checked_linecnt);
   517         printf("    --------------- Queries found --------------\n");
   518         if (cnt_long)
   519 	    printf("    Long lines:                    %14ld\n",cnt_long);
   520         if (cnt_short)
   521 	    printf("    Short lines:                   %14ld\n",cnt_short);
   522         if (cnt_lineend)
   523 	    printf("    Line-end problems:             %14ld\n",cnt_lineend);
   524         if (cnt_word)
   525 	    printf("    Common typos:                  %14ld\n",cnt_word);
   526         if (cnt_dquot)
   527 	    printf("    Unmatched quotes:              %14ld\n",cnt_dquot);
   528         if (cnt_squot)
   529 	    printf("    Unmatched SingleQuotes:        %14ld\n",cnt_squot);
   530         if (cnt_brack)
   531 	    printf("    Unmatched brackets:            %14ld\n",cnt_brack);
   532         if (cnt_bin)
   533 	    printf("    Non-ASCII characters:          %14ld\n",cnt_bin);
   534         if (cnt_odd)
   535 	    printf("    Proofing characters:           %14ld\n",cnt_odd);
   536         if (cnt_punct)
   537 	    printf("    Punctuation & spacing queries: %14ld\n",cnt_punct);
   538         if (cnt_dash)
   539 	    printf("    Non-standard dashes:           %14ld\n",cnt_dash);
   540         if (cnt_html)
   541 	    printf("    Possible HTML tags:            %14ld\n",cnt_html);
   542         printf("\n");
   543         printf("    TOTAL QUERIES                  %14ld\n",
   544           cnt_dquot+cnt_squot+cnt_brack+cnt_bin+cnt_odd+cnt_long+
   545           cnt_short+cnt_punct+cnt_dash+cnt_word+cnt_html+cnt_lineend);
   546     }
   547     return 0;
   548 }
   549 
   550 struct first_pass_results {
   551     long firstline,astline;
   552     long footerline,totlen,binlen,alphalen,endquote_count,shortline,dotcomma;
   553     long fslashline,hyphens,longline,verylongline,htmcount,standalone_digit;
   554     long spacedash,emdash,space_emdash,non_PG_space_emdash,PG_space_emdash;
   555     signed int Dutchcount,Frenchcount;
   556 };
   557 
   558 /*
   559  * first_pass:
   560  *
   561  * Run a first pass - verify that it's a valid PG
   562  * file, decide whether to report some things that
   563  * occur many times in the text like long or short
   564  * lines, non-standard dashes, etc.
   565  */
   566 struct first_pass_results *first_pass(FILE *infile)
   567 {
   568     char laststart=CHAR_SPACE,*s;
   569     signed int i,llen;
   570     unsigned int lastlen=0,lastblen=0;
   571     long spline=0,nspline=0;
   572     static struct first_pass_results results={0};
   573     char inword[MAXWORDLEN]="";
   574     while (fgets(aline,LINEBUFSIZE-1,infile))
   575     {
   576         while (aline[strlen(aline)-1]==10 || aline[strlen(aline)-1]==13)
   577 	    aline[strlen(aline)-1]=0;
   578         linecnt++;
   579         if (strstr(aline,"*END") && strstr(aline,"SMALL PRINT") &&
   580 	  (strstr(aline,"PUBLIC DOMAIN") || strstr(aline,"COPYRIGHT")))
   581 	{
   582             if (spline)
   583                 printf("   --> Duplicate header?\n");
   584             spline=linecnt+1;   /* first line of non-header text, that is */
   585 	}
   586         if (!strncmp(aline,"*** START",9) && strstr(aline,"PROJECT GUTENBERG"))
   587 	{
   588             if (nspline)
   589                 printf("   --> Duplicate header?\n");
   590             nspline=linecnt+1;   /* first line of non-header text, that is */
   591 	}
   592         if (spline || nspline)
   593 	{
   594             lowerit(aline);
   595             if (strstr(aline,"end") && strstr(aline,"project gutenberg"))
   596 	    {
   597                 if (strstr(aline,"end")<strstr(aline,"project gutenberg"))
   598 		{
   599                     if (results.footerline)
   600 		    {
   601 			/* it's an old-form header - we can detect duplicates */
   602                         if (!nspline)
   603                             printf("   --> Duplicate footer?\n");
   604 		    }
   605                     else
   606                         results.footerline=linecnt;
   607 		}
   608 	    }
   609 	}
   610         if (spline)
   611 	    results.firstline=spline;
   612         if (nspline)
   613 	    results.firstline=nspline;  /* override with new */
   614         if (results.footerline)
   615 	    continue;    /* don't count the boilerplate in the footer */
   616         llen=strlen(aline);
   617         results.totlen+=llen;
   618         for (i=0;i<llen;i++)
   619 	{
   620             if ((unsigned char)aline[i]>127)
   621 		results.binlen++;
   622             if (gcisalpha(aline[i]))
   623 		results.alphalen++;
   624             if (i>0 && aline[i]==CHAR_DQUOTE && isalpha(aline[i-1]))
   625 		results.endquote_count++;
   626 	}
   627         if (strlen(aline)>2 && lastlen>2 && lastlen<SHORTEST_PG_LINE &&
   628 	  lastblen>2 && lastblen>SHORTEST_PG_LINE && laststart!=CHAR_SPACE)
   629 	    results.shortline++;
   630         if (*aline && (unsigned char)aline[strlen(aline)-1]<=CHAR_SPACE)
   631 	    cnt_spacend++;
   632         if (strstr(aline,".,"))
   633 	    results.dotcomma++;
   634         /* only count ast lines for ignoring purposes where there is */
   635         /* locase text on the line */
   636         if (strstr(aline,"*"))
   637 	{
   638             for (s=aline;*s;s++)
   639                 if (*s>='a' && *s<='z')
   640                     break;
   641              if (*s)
   642 		results.astline++;
   643 	}
   644         if (strstr(aline,"/"))
   645             results.fslashline++;
   646         for (i=llen-1;i>0 && (unsigned char)aline[i]<=CHAR_SPACE;i--)
   647 	    ;
   648         if (aline[i]=='-' && aline[i-1]!='-')
   649 	    results.hyphens++;
   650         if (llen>LONGEST_PG_LINE)
   651 	    results.longline++;
   652         if (llen>WAY_TOO_LONG)
   653 	    results.verylongline++;
   654         if (strstr(aline,"<") && strstr(aline,">"))
   655 	{
   656             i=(signed int)(strstr(aline,">")-strstr(aline,"<")+1);
   657             if (i>0)
   658                 results.htmcount++;
   659             if (strstr(aline,"<i>"))
   660 		results.htmcount+=4; /* bonus marks! */
   661 	}
   662         /* Check for spaced em-dashes */
   663         if (strstr(aline,"--"))
   664 	{
   665             results.emdash++;
   666             if (*(strstr(aline,"--")-1)==CHAR_SPACE ||
   667                (*(strstr(aline,"--")+2)==CHAR_SPACE))
   668 		results.space_emdash++;
   669             if (*(strstr(aline,"--")-1)==CHAR_SPACE &&
   670                (*(strstr(aline,"--")+2)==CHAR_SPACE))
   671 		/* count of em-dashes with spaces both sides */
   672 		results.non_PG_space_emdash++;
   673             if (*(strstr(aline,"--")-1)!=CHAR_SPACE &&
   674                (*(strstr(aline,"--")+2)!=CHAR_SPACE))
   675 		/* count of PG-type em-dashes with no spaces */
   676 		results.PG_space_emdash++;
   677 	}
   678         for (s=aline;*s;)
   679 	{
   680             s=getaword(s,inword);
   681             if (!strcmp(inword,"hij") || !strcmp(inword,"niet")) 
   682                 results.Dutchcount++;
   683             if (!strcmp(inword,"dans") || !strcmp(inword,"avec")) 
   684                 results.Frenchcount++;
   685             if (!strcmp(inword,"0") || !strcmp(inword,"1")) 
   686                 results.standalone_digit++;
   687 	}
   688         /* Check for spaced dashes */
   689         if (strstr(aline," -") && *(strstr(aline," -")+2)!='-')
   690 	    results.spacedash++;
   691         lastblen=lastlen;
   692         lastlen=strlen(aline);
   693         laststart=aline[0];
   694     }
   695     return &results;
   696 }
   697 
   698 struct warnings {
   699     signed int shortline,longline,bin,dash,dotcomma,ast,fslash,digit,hyphen;
   700     signed int endquote,isDutch,isFrench;
   701 };
   702 
   703 /*
   704  * report_first_pass:
   705  *
   706  * Make some snap decisions based on the first pass results.
   707  */
   708 struct warnings *report_first_pass(struct first_pass_results *results)
   709 {
   710     static struct warnings warnings={0};
   711     if (cnt_spacend>0)
   712         printf("   --> %ld lines in this file have white space at end\n",
   713 	  cnt_spacend);
   714     warnings.dotcomma=1;
   715     if (results->dotcomma>5)
   716     {
   717         warnings.dotcomma=0;
   718         printf("   --> %ld lines in this file contain '.,'. "
   719 	  "Not reporting them.\n",results->dotcomma);
   720     }
   721     /*
   722      * If more than 50 lines, or one-tenth, are short,
   723      * don't bother reporting them.
   724      */
   725     warnings.shortline=1;
   726     if (results->shortline>50 || results->shortline*10>linecnt)
   727     {
   728         warnings.shortline=0;
   729         printf("   --> %ld lines in this file are short. "
   730 	  "Not reporting short lines.\n",results->shortline);
   731     }
   732     /*
   733      * If more than 50 lines, or one-tenth, are long,
   734      * don't bother reporting them.
   735      */
   736     warnings.longline=1;
   737     if (results->longline>50 || results->longline*10>linecnt)
   738     {
   739         warnings.longline=0;
   740         printf("   --> %ld lines in this file are long. "
   741 	  "Not reporting long lines.\n",results->longline);
   742     }
   743     /* If more than 10 lines contain asterisks, don't bother reporting them. */
   744     warnings.ast=1;
   745     if (results->astline>10)
   746     {
   747         warnings.ast=0;
   748         printf("   --> %ld lines in this file contain asterisks. "
   749 	  "Not reporting them.\n",results->astline);
   750     }
   751     /*
   752      * If more than 10 lines contain forward slashes,
   753      * don't bother reporting them.
   754      */
   755     warnings.fslash=1;
   756     if (results->fslashline>10)
   757     {
   758         warnings.fslash=0;
   759         printf("   --> %ld lines in this file contain forward slashes. "
   760 	  "Not reporting them.\n",results->fslashline);
   761     }
   762     /*
   763      * If more than 20 lines contain unpunctuated endquotes,
   764      * don't bother reporting them.
   765      */
   766     warnings.endquote=1;
   767     if (results->endquote_count>20)
   768     {
   769         warnings.endquote=0;
   770         printf("   --> %ld lines in this file contain unpunctuated endquotes. "
   771 	  "Not reporting them.\n",results->endquote_count);
   772     }
   773     /*
   774      * If more than 15 lines contain standalone digits,
   775      * don't bother reporting them.
   776      */
   777     warnings.digit=1;
   778     if (results->standalone_digit>10)
   779     {
   780         warnings.digit=0;
   781         printf("   --> %ld lines in this file contain standalone 0s and 1s. "
   782 	  "Not reporting them.\n",results->standalone_digit);
   783     }
   784     /*
   785      * If more than 20 lines contain hyphens at end,
   786      * don't bother reporting them.
   787      */
   788     warnings.hyphen=1;
   789     if (results->hyphens>20)
   790     {
   791         warnings.hyphen=0;
   792         printf("   --> %ld lines in this file have hyphens at end. "
   793 	  "Not reporting them.\n",results->hyphens);
   794     }
   795     if (results->htmcount>20 && !pswit[MARKUP_SWITCH])
   796     {
   797         printf("   --> Looks like this is HTML. Switching HTML mode ON.\n");
   798         pswit[MARKUP_SWITCH]=1;
   799     }
   800     if (results->verylongline>0)
   801         printf("   --> %ld lines in this file are VERY long!\n",
   802 	  results->verylongline);
   803     /*
   804      * If there are more non-PG spaced dashes than PG em-dashes,
   805      * assume it's deliberate.
   806      * Current PG guidelines say don't use them, but older texts do,
   807      * and some people insist on them whatever the guidelines say.
   808      */
   809     warnings.dash=1;
   810     if (results->spacedash+results->non_PG_space_emdash>
   811       results->PG_space_emdash)
   812     {
   813         warnings.dash=0;
   814         printf("   --> There are %ld spaced dashes and em-dashes. "
   815 	  "Not reporting them.\n",
   816 	  results->spacedash+results->non_PG_space_emdash);
   817     }
   818     /* If more than a quarter of characters are hi-bit, bug out. */
   819     warnings.bin=1;
   820     if (results->binlen*4>results->totlen)
   821     {
   822         printf("   --> This file does not appear to be ASCII. "
   823 	  "Terminating. Best of luck with it!\n");
   824         exit(1);
   825     }
   826     if (results->alphalen*4<results->totlen)
   827     {
   828         printf("   --> This file does not appear to be text. "
   829 	  "Terminating. Best of luck with it!\n");
   830         exit(1);
   831     }
   832     if (results->binlen*100>results->totlen || results->binlen>100)
   833     {
   834         printf("   --> There are a lot of foreign letters here. "
   835 	  "Not reporting them.\n");
   836         warnings.bin=0;
   837     }
   838     warnings.isDutch=0;
   839     if (results->Dutchcount>50)
   840     {
   841         warnings.isDutch=1;
   842         printf("   --> This looks like Dutch - "
   843 	  "switching off dashes and warnings for 's Middags case.\n");
   844     }
   845     warnings.isFrench=0;
   846     if (results->Frenchcount>50)
   847     {
   848         warnings.isFrench=1;
   849         printf("   --> This looks like French - "
   850 	  "switching off some doublepunct.\n");
   851     }
   852     if (results->firstline && results->footerline)
   853         printf("    The PG header and footer appear to be already on.\n");
   854     else
   855     {
   856         if (results->firstline)
   857             printf("    The PG header is on - no footer.\n");
   858         if (results->footerline)
   859             printf("    The PG footer is on - no header.\n");
   860     }
   861     printf("\n");
   862     if (pswit[VERBOSE_SWITCH])
   863     {
   864         warnings.bin=1;
   865         warnings.shortline=1;
   866         warnings.dotcomma=1;
   867         warnings.longline=1;
   868         warnings.dash=1;
   869         warnings.digit=1;
   870         warnings.ast=1;
   871         warnings.fslash=1;
   872         warnings.hyphen=1;
   873         warnings.endquote=1;
   874         printf("   *** Verbose output is ON -- you asked for it! ***\n");
   875     }
   876     if (warnings.isDutch)
   877         warnings.dash=0;
   878     if (results->footerline>0 && results->firstline>0 &&
   879       results->footerline>results->firstline &&
   880       results->footerline-results->firstline<100)
   881     {
   882         printf("   --> I don't really know where this text starts. \n");
   883         printf("       There are no reference points.\n");
   884         printf("       I'm going to have to report the header and footer "
   885 	  "as well.\n");
   886         results->firstline=0;
   887     }
   888     return &warnings;
   889 }
   890 
   891 struct counters {
   892     long quot;
   893     signed int c_unders,c_brack,s_brack,r_brack;
   894     signed int open_single_quote,close_single_quote;
   895 };
   896 
   897 /*
   898  * analyse_quotes:
   899  *
   900  * Look along the line, accumulate the count of quotes, and see
   901  * if this is an empty line - i.e. a line with nothing on it
   902  * but spaces.
   903  * If line has just spaces, period, * and/or - on it, don't
   904  * count it, since empty lines with asterisks or dashes to
   905  * separate sections are common.
   906  *
   907  * Returns: Non-zero if the line is empty.
   908  */
   909 int analyse_quotes(const char *s,struct counters *counters)
   910 {
   911     signed int guessquote=0;
   912     int isemptyline=1;    /* assume the line is empty until proven otherwise */
   913     while (*s)
   914     {
   915 	if (*s==CHAR_DQUOTE)
   916 	    counters->quot++;
   917 	if (*s==CHAR_SQUOTE || *s==CHAR_OPEN_SQUOTE)
   918 	{
   919 	    if (s==aline)
   920 	    {
   921 		/*
   922 		 * At start of line, it can only be an openquote.
   923 		 * Hardcode a very common exception!
   924 		 */
   925 		if (strncmp(s+2,"tis",3) && strncmp(s+2,"Tis",3))
   926 		    counters->open_single_quote++;
   927 	    }
   928 	    else if (gcisalpha(s[-1]) && gcisalpha(s[1]))
   929 		/* Do nothing! it's definitely an apostrophe, not a quote */
   930 		;
   931 	    /* it's outside a word - let's check it out */
   932 	    else if (*s==CHAR_OPEN_SQUOTE || gcisalpha(s[1]))
   933 	    {
   934 		/* it damwell better BE an openquote */
   935 		if (strncmp(s+1,"tis",3) && strncmp(s+1,"Tis",3))
   936 		    /* hardcode a very common exception! */
   937 		    counters->open_single_quote++;
   938 	    }
   939 	    else
   940 	    {
   941 		/* now - is it a closequote? */
   942 		guessquote=0;   /* accumulate clues */
   943 		if (gcisalpha(s[-1]))
   944 		{
   945 		    /* it follows a letter - could be either */
   946 		    guessquote++;
   947 		    if (s[-1]=='s')
   948 		    {
   949 			/* looks like a plural apostrophe */
   950 			guessquote-=3;
   951 			if (s[1]==CHAR_SPACE)  /* bonus marks! */
   952 			    guessquote-=2;
   953 		    }
   954 		}
   955 		/* it doesn't have a letter either side */
   956 		else if (strchr(".?!,;:",s[-1]) && strchr(".?!,;: ",s[1]))
   957 		    guessquote+=8; /* looks like a closequote */
   958 		else
   959 		    guessquote++;
   960 		if (counters->open_single_quote>counters->close_single_quote)
   961 		    /*
   962 		     * Give it the benefit of some doubt,
   963 		     * if a squote is already open.
   964 		     */
   965 		    guessquote++;
   966 		else
   967 		    guessquote--;
   968 		if (guessquote>=0)
   969 		    counters->close_single_quote++;
   970 	    }
   971 	}
   972 	if (*s!=CHAR_SPACE && *s!='-' && *s!='.' && *s!=CHAR_ASTERISK &&
   973 	  *s!=13 && *s!=10)
   974 	    isemptyline=0;  /* ignore lines like  *  *  *  as spacers */
   975 	if (*s==CHAR_UNDERSCORE)
   976 	    counters->c_unders++;
   977 	if (*s==CHAR_OPEN_CBRACK)
   978 	    counters->c_brack++;
   979 	if (*s==CHAR_CLOSE_CBRACK)
   980 	    counters->c_brack--;
   981 	if (*s==CHAR_OPEN_RBRACK)
   982 	    counters->r_brack++;
   983 	if (*s==CHAR_CLOSE_RBRACK)
   984 	    counters->r_brack--;
   985 	if (*s==CHAR_OPEN_SBRACK)
   986 	    counters->s_brack++;
   987 	if (*s==CHAR_CLOSE_SBRACK)
   988 	    counters->s_brack--;
   989 	s++;
   990     }
   991     return isemptyline;
   992 }
   993 
   994 /*
   995  * check_for_odd_characters:
   996  *
   997  * Check for binary and other odd characters.
   998  */
   999 void check_for_odd_characters(const char *aline,const struct warnings *warnings,
  1000   int isemptyline)
  1001 {
  1002     /* Don't repeat multiple warnings on one line. */
  1003     signed int eNon_A=0,eTab=0,eTilde=0,eCarat=0,eFSlash=0,eAst=0;
  1004     const char *s;
  1005     unsigned char c;
  1006     for (s=aline;*s;s++)
  1007     {
  1008 	c=*(unsigned char *)s;
  1009 	if (!eNon_A && (*s<CHAR_SPACE && *s!=9 && *s!='\n' || c>127))
  1010 	{
  1011 	    if (pswit[ECHO_SWITCH])
  1012 		printf("\n%s\n",aline);
  1013 	    if (!pswit[OVERVIEW_SWITCH])
  1014 		if (c>127 && c<160)
  1015 		    printf("    Line %ld column %d - "
  1016 		      "Non-ISO-8859 character %d\n",linecnt,(int)(s-aline)+1,c);
  1017 		else
  1018 		    printf("    Line %ld column %d - Non-ASCII character %d\n",
  1019 		      linecnt,(int)(s-aline)+1,c);
  1020 	    else
  1021 		cnt_bin++;
  1022 	    eNon_A=1;
  1023 	}
  1024 	if (!eTab && *s==CHAR_TAB)
  1025 	{
  1026 	    if (pswit[ECHO_SWITCH])
  1027 		printf("\n%s\n",aline);
  1028 	    if (!pswit[OVERVIEW_SWITCH])
  1029 		printf("    Line %ld column %d - Tab character?\n",
  1030 		  linecnt,(int)(s-aline)+1);
  1031 	    else
  1032 		cnt_odd++;
  1033 	    eTab=1;
  1034 	}
  1035 	if (!eTilde && *s==CHAR_TILDE)
  1036 	{
  1037 	    /*
  1038 	     * Often used by OCR software to indicate an
  1039 	     * unrecognizable character.
  1040 	     */
  1041 	    if (pswit[ECHO_SWITCH])
  1042 		printf("\n%s\n",aline);
  1043 	    if (!pswit[OVERVIEW_SWITCH])
  1044 		printf("    Line %ld column %d - Tilde character?\n",
  1045 		  linecnt,(int)(s-aline)+1);
  1046 	    else
  1047 		cnt_odd++;
  1048 	    eTilde=1;
  1049 	}
  1050 	if (!eCarat && *s==CHAR_CARAT)
  1051 	{  
  1052 	    if (pswit[ECHO_SWITCH])
  1053 		printf("\n%s\n",aline);
  1054 	    if (!pswit[OVERVIEW_SWITCH])
  1055 		printf("    Line %ld column %d - Carat character?\n",
  1056 		  linecnt,(int)(s-aline)+1);
  1057 	    else
  1058 		cnt_odd++;
  1059 	    eCarat=1;
  1060 	}
  1061 	if (!eFSlash && *s==CHAR_FORESLASH && warnings->fslash)
  1062 	{  
  1063 	    if (pswit[ECHO_SWITCH])
  1064 		printf("\n%s\n",aline);
  1065 	    if (!pswit[OVERVIEW_SWITCH])
  1066 		printf("    Line %ld column %d - Forward slash?\n",
  1067 		  linecnt,(int)(s-aline)+1);
  1068 	    else
  1069 		cnt_odd++;
  1070 	    eFSlash=1;
  1071 	}
  1072 	/*
  1073 	 * Report asterisks only in paranoid mode,
  1074 	 * since they're often deliberate.
  1075 	 */
  1076 	if (!eAst && pswit[PARANOID_SWITCH] && warnings->ast && !isemptyline &&
  1077 	  *s==CHAR_ASTERISK)
  1078 	{
  1079 	    if (pswit[ECHO_SWITCH])
  1080 		printf("\n%s\n",aline);
  1081 	    if (!pswit[OVERVIEW_SWITCH])
  1082 		printf("    Line %ld column %d - Asterisk?\n",
  1083 		  linecnt,(int)(s-aline)+1);
  1084 	    else
  1085 		cnt_odd++;
  1086 	    eAst=1;
  1087 	}
  1088     }
  1089 }
  1090 
  1091 /*
  1092  * check_for_long_line:
  1093  *
  1094  * Check for line too long.
  1095  */
  1096 void check_for_long_line(const char *aline)
  1097 {
  1098     if (strlen(aline)>LONGEST_PG_LINE)
  1099     {
  1100 	if (pswit[ECHO_SWITCH])
  1101 	    printf("\n%s\n",aline);
  1102 	if (!pswit[OVERVIEW_SWITCH])
  1103 	    printf("    Line %ld column %d - Long line %d\n",
  1104 	      linecnt,strlen(aline),strlen(aline));
  1105 	else
  1106 	    cnt_long++;
  1107     }
  1108 }
  1109 
  1110 struct line_properties {
  1111     unsigned int len,blen;
  1112     char start;
  1113 };
  1114 
  1115 /*
  1116  * check_for_short_line:
  1117  *
  1118  * Check for line too short.
  1119  *
  1120  * This one is a bit trickier to implement: we don't want to
  1121  * flag the last line of a paragraph for being short, so we
  1122  * have to wait until we know that our current line is a
  1123  * "normal" line, then report the _previous_ line if it was too
  1124  * short. We also don't want to report indented lines like
  1125  * chapter heads or formatted quotations. We therefore keep
  1126  * last->len as the length of the last line examined, and
  1127  * last->blen as the length of the last but one, and try to
  1128  * suppress unnecessary warnings by checking that both were of
  1129  * "normal" length. We keep the first character of the last
  1130  * line in last->start, and if it was a space, we assume that
  1131  * the formatting is deliberate. I can't figure out a way to
  1132  * distinguish something like a quoted verse left-aligned or
  1133  * the header or footer of a letter from a paragraph of short
  1134  * lines - maybe if I examined the whole paragraph, and if the
  1135  * para has less than, say, 8 lines and if all lines are short,
  1136  * then just assume it's OK? Need to look at some texts to see
  1137  * how often a formula like this would get the right result.
  1138  */
  1139 void check_for_short_line(const char *aline,const struct line_properties *last)
  1140 {
  1141     if (strlen(aline)>1 && last->len>1 && last->len<SHORTEST_PG_LINE &&
  1142       last->blen>1 && last->blen>SHORTEST_PG_LINE && last->start!=CHAR_SPACE)
  1143     {
  1144 	if (pswit[ECHO_SWITCH])
  1145 	    printf("\n%s\n",prevline);
  1146 	if (!pswit[OVERVIEW_SWITCH])
  1147 	    printf("    Line %ld column %d - Short line %d?\n",
  1148 	      linecnt-1,strlen(prevline),strlen(prevline));
  1149 	else
  1150 	    cnt_short++;
  1151     }
  1152 }
  1153 
  1154 /*
  1155  * check_for_starting_punctuation:
  1156  *
  1157  * Look for punctuation other than full ellipses at start of line.
  1158  */
  1159 void check_for_starting_punctuation(const char *aline)
  1160 {
  1161     if (*aline && strchr(".?!,;:",aline[0]) && strncmp(". . .",aline,5))
  1162     {
  1163 	if (pswit[ECHO_SWITCH])
  1164 	    printf("\n%s\n",aline);
  1165 	if (!pswit[OVERVIEW_SWITCH])
  1166 	    printf("    Line %ld column 1 - Begins with punctuation?\n",
  1167 	      linecnt);
  1168 	else
  1169 	    cnt_punct++;
  1170     }
  1171 }
  1172 
  1173 /*
  1174  * check_for_spaced_emdash:
  1175  *
  1176  * Check for spaced em-dashes.
  1177  *
  1178  * We must check _all_ occurrences of "--" on the line
  1179  * hence the loop - even if the first double-dash is OK
  1180  * there may be another that's wrong later on.
  1181  */
  1182 void check_for_spaced_emdash(const char *aline)
  1183 {
  1184     const char *s,*t;
  1185     s=aline;
  1186     while ((t=strstr(s,"--")))
  1187     {
  1188 	if (t>aline && t[-1]==CHAR_SPACE || t[2]==CHAR_SPACE)
  1189 	{
  1190 	    if (pswit[ECHO_SWITCH])
  1191 		printf("\n%s\n",aline);
  1192 	    if (!pswit[OVERVIEW_SWITCH])
  1193 		printf("    Line %ld column %d - Spaced em-dash?\n",
  1194 		  linecnt,(int)(t-aline)+1);
  1195 	    else
  1196 		cnt_dash++;
  1197 	}
  1198 	s=t+2;
  1199     }
  1200 }
  1201 
  1202 /*
  1203  * check_for_spaced_dash:
  1204  *
  1205  * Check for spaced dashes.
  1206  */
  1207 void check_for_spaced_dash(const char *aline)
  1208 {
  1209     const char *s;
  1210     if ((s=strstr(aline," -")))
  1211     {
  1212 	if (s[2]!='-')
  1213 	{
  1214 	    if (pswit[ECHO_SWITCH])
  1215 		printf("\n%s\n",aline);
  1216 	    if (!pswit[OVERVIEW_SWITCH])
  1217 		printf("    Line %ld column %d - Spaced dash?\n",
  1218 		  linecnt,(int)(s-aline)+1);
  1219 	    else
  1220 		cnt_dash++;
  1221 	}
  1222     }
  1223     else if ((s=strstr(aline,"- ")))
  1224     {
  1225 	if (s==aline || s[-1]!='-')
  1226 	{
  1227 	    if (pswit[ECHO_SWITCH])
  1228 		printf("\n%s\n",aline);
  1229 	    if (!pswit[OVERVIEW_SWITCH])
  1230 		printf("    Line %ld column %d - Spaced dash?\n",
  1231 		  linecnt,(int)(s-aline)+1);
  1232 	    else
  1233 		cnt_dash++;
  1234 	}
  1235     }
  1236 }
  1237 
  1238 /*
  1239  * check_for_unmarked_paragraphs:
  1240  *
  1241  * Check for unmarked paragraphs indicated by separate speakers.
  1242  *
  1243  * May well be false positive:
  1244  * "Bravo!" "Wonderful!" called the crowd.
  1245  * but useful all the same.
  1246  */
  1247 void check_for_unmarked_paragraphs(const char *aline)
  1248 {
  1249     const char *s;
  1250     s=strstr(aline,"\"  \"");
  1251     if (!s)
  1252 	s=strstr(aline,"\" \"");
  1253     if (s)
  1254     {
  1255 	if (pswit[ECHO_SWITCH])
  1256 	    printf("\n%s\n",aline);
  1257 	if (!pswit[OVERVIEW_SWITCH])
  1258 	    printf("    Line %ld column %d - Query missing paragraph break?\n",
  1259 	      linecnt,(int)(s-aline)+1);
  1260 	else
  1261 	    cnt_punct++;
  1262     }
  1263 }
  1264 
  1265 /*
  1266  * check_for_jeebies:
  1267  *
  1268  * Check for "to he" and other easy h/b errors.
  1269  *
  1270  * This is a very inadequate effort on the h/b problem,
  1271  * but the phrase "to he" is always an error, whereas "to
  1272  * be" is quite common.
  1273  * Similarly, '"Quiet!", be said.' is a non-be error
  1274  * "to he" is _not_ always an error!:
  1275  *       "Where they went to he couldn't say."
  1276  * Another false positive:
  1277  *       What would "Cinderella" be without the . . .
  1278  * and another: "If he wants to he can see for himself."
  1279  */
  1280 void check_for_jeebies(const char *aline)
  1281 {
  1282     const char *s;
  1283     s=strstr(aline," be could ");
  1284     if (!s)
  1285 	s=strstr(aline," be would ");
  1286     if (!s)
  1287 	s=strstr(aline," was be ");
  1288     if (!s)
  1289 	s=strstr(aline," be is ");
  1290     if (!s)
  1291 	s=strstr(aline," is be ");
  1292     if (!s)
  1293 	s=strstr(aline,"\", be ");
  1294     if (!s)
  1295 	s=strstr(aline,"\" be ");
  1296     if (!s)
  1297 	s=strstr(aline,"\" be ");
  1298     if (!s)
  1299 	s=strstr(aline," to he ");
  1300     if (s)
  1301     {
  1302 	if (pswit[ECHO_SWITCH])
  1303 	    printf("\n%s\n",aline);
  1304 	if (!pswit[OVERVIEW_SWITCH])
  1305 	    printf("    Line %ld column %d - Query he/be error?\n",
  1306 	      linecnt,(int)(s-aline)+1);
  1307 	else
  1308 	    cnt_word++;
  1309     }
  1310     s=strstr(aline," the had ");
  1311     if (!s)
  1312 	s=strstr(aline," a had ");
  1313     if (!s)
  1314 	s=strstr(aline," they bad ");
  1315     if (!s)
  1316 	s=strstr(aline," she bad ");
  1317     if (!s)
  1318 	s=strstr(aline," he bad ");
  1319     if (!s)
  1320 	s=strstr(aline," you bad ");
  1321     if (!s)
  1322 	s=strstr(aline," i bad ");
  1323     if (s)
  1324     {
  1325 	if (pswit[ECHO_SWITCH])
  1326 	    printf("\n%s\n",aline);
  1327 	if (!pswit[OVERVIEW_SWITCH])
  1328 	    printf("    Line %ld column %d - Query had/bad error?\n",
  1329 	      linecnt,(int)(s-aline)+1);
  1330 	else
  1331 	    cnt_word++;
  1332     }
  1333     s=strstr(aline,"; hut ");
  1334     if (!s)
  1335 	s=strstr(aline,", hut ");
  1336     if (s)
  1337     {
  1338 	if (pswit[ECHO_SWITCH])
  1339 	    printf("\n%s\n",aline);
  1340 	if (!pswit[OVERVIEW_SWITCH])
  1341 	    printf("    Line %ld column %d - Query hut/but error?\n",
  1342 	      linecnt,(int)(s-aline)+1);
  1343 	else
  1344 	    cnt_word++;
  1345     }
  1346 }
  1347 
  1348 /*
  1349  * check_for_mta_from:
  1350  *
  1351  * Special case - angled bracket in front of "From" placed there by an
  1352  * MTA when sending an e-mail.
  1353  */
  1354 void check_for_mta_from(const char *aline)
  1355 {
  1356     const char *s;
  1357     s=strstr(aline,">From");
  1358     if (s)
  1359     {
  1360 	if (pswit[ECHO_SWITCH])
  1361 	    printf("\n%s\n",aline);
  1362 	if (!pswit[OVERVIEW_SWITCH])
  1363 	    printf("    Line %ld column %d - Query angled bracket with From\n",
  1364 	      linecnt,(int)(s-aline)+1);
  1365 	else
  1366 	    cnt_punct++;
  1367     }
  1368 }
  1369 
  1370 /*
  1371  * check_for_orphan_character:
  1372  *
  1373  * Check for a single character line -
  1374  * often an overflow from bad wrapping.
  1375  */
  1376 void check_for_orphan_character(const char *aline)
  1377 {
  1378     if (*aline && !aline[1])
  1379     {
  1380 	if (*aline=='I' || *aline=='V' || *aline=='X' || *aline=='L' ||
  1381 	  gcisdigit(*aline))
  1382 	    ; /* Nothing - ignore numerals alone on a line. */
  1383 	else
  1384 	{
  1385 	    if (pswit[ECHO_SWITCH])
  1386 		printf("\n%s\n",aline);
  1387 	    if (!pswit[OVERVIEW_SWITCH])
  1388 		printf("    Line %ld column 1 - Query single character line\n",
  1389 		  linecnt);
  1390 	    else
  1391 		cnt_punct++;
  1392 	}
  1393     }
  1394 }
  1395 
  1396 /*
  1397  * check_for_pling_scanno:
  1398  *
  1399  * Check for I" - often should be !
  1400  */
  1401 void check_for_pling_scanno(const char *aline)
  1402 {
  1403     const char *s;
  1404     s=strstr(aline," I\"");
  1405     if (s)
  1406     {
  1407 	if (pswit[ECHO_SWITCH])
  1408 	    printf("\n%s\n",aline);
  1409 	if (!pswit[OVERVIEW_SWITCH])
  1410 	    printf("    Line %ld column %ld - Query I=exclamation mark?\n",
  1411 	      linecnt,s-aline);
  1412 	else
  1413 	    cnt_punct++;
  1414     }
  1415 }
  1416 
  1417 /*
  1418  * procfile:
  1419  *
  1420  * Process one file.
  1421  */
  1422 void procfile(char *filename)
  1423 {
  1424     char *s,*t,*s1,*wordstart;
  1425     char inword[MAXWORDLEN],testword[MAXWORDLEN];
  1426     char parastart[81];     /* first line of current para */
  1427     FILE *infile;
  1428     struct first_pass_results *first_pass_results;
  1429     struct warnings *warnings;
  1430     struct counters counters={0};
  1431     struct line_properties last={0};
  1432     int isemptyline;
  1433     long squot,start_para_line;
  1434     signed int i,j,llen,isacro,isellipsis,istypo,alower;
  1435     signed int dquotepar,squotepar;
  1436     signed int isnewpara,vowel,consonant;
  1437     char dquote_err[80],squote_err[80],rbrack_err[80],sbrack_err[80],
  1438       cbrack_err[80],unders_err[80];
  1439     signed int qword_index,qperiod_index,isdup;
  1440     signed int enddash;
  1441     last.start=CHAR_SPACE;
  1442     *dquote_err=*squote_err=*rbrack_err=*cbrack_err=*sbrack_err=
  1443       *unders_err=*prevline=0;
  1444     linecnt=checked_linecnt=start_para_line=0;
  1445     squot=0;
  1446     i=llen=isacro=isellipsis=istypo=0;
  1447     isnewpara=vowel=consonant=enddash=0;
  1448     qword_index=qperiod_index=isdup=0;
  1449     *inword=*testword=0;
  1450     dquotepar=squotepar=0;
  1451     for (j=0;j<MAX_QWORD;j++)
  1452     {
  1453         dupcnt[j]=0;
  1454         for (i=0;i<MAX_QWORD_LENGTH;i++)
  1455 	{
  1456             qword[i][j]=0;
  1457             qperiod[i][j]=0;
  1458 	}
  1459     }
  1460     infile=fopen(filename,"rb");
  1461     if (!infile)
  1462     {
  1463         if (pswit[STDOUT_SWITCH])
  1464             fprintf(stdout,"bookloupe: cannot open %s\n",filename);
  1465         else
  1466             fprintf(stderr,"bookloupe: cannot open %s\n",filename);
  1467 	exit(1);
  1468     }
  1469     fprintf(stdout,"\n\nFile: %s\n\n",filename);
  1470     first_pass_results=first_pass(infile);
  1471     warnings=report_first_pass(first_pass_results);
  1472     rewind(infile);
  1473     /*
  1474      * Here we go with the main pass. Hold onto yer hat!
  1475      * Re-init some variables we've dirtied.
  1476      */
  1477     squot=linecnt=0;
  1478     while (flgets(aline,LINEBUFSIZE-1,infile,linecnt+1))
  1479     {
  1480         linecnt++;
  1481         if (linecnt==1)
  1482 	    isnewpara=1;
  1483         if (pswit[DP_SWITCH] && !strncmp(aline,"-----File: ",11))
  1484 	    continue;    // skip DP page separators completely
  1485         if (linecnt<first_pass_results->firstline ||
  1486 	  (first_pass_results->footerline>0 &&
  1487 	  linecnt>first_pass_results->footerline))
  1488 	{
  1489             if (pswit[HEADER_SWITCH])
  1490 	    {
  1491                 if (!strncmp(aline,"Title:",6))
  1492                     printf("    %s\n",aline);
  1493                 if (!strncmp(aline,"Author:",7))
  1494                     printf("    %s\n",aline);
  1495                 if (!strncmp(aline,"Release Date:",13))
  1496                     printf("    %s\n",aline);
  1497                 if (!strncmp(aline,"Edition:",8))
  1498                     printf("    %s\n\n",aline);
  1499 	    }
  1500             continue;                /* skip through the header */
  1501 	}
  1502         checked_linecnt++;
  1503         s=aline;
  1504         /*
  1505 	 * If we are in a state of unbalanced quotes, and this line
  1506          * doesn't begin with a quote, output the stored error message.
  1507          * If the -P switch was used, print the warning even if the
  1508          * new para starts with quotes.
  1509 	 */
  1510         t=s;
  1511         while (*t==' ')
  1512 	    t++;
  1513         if (*dquote_err)
  1514             if (*t!=CHAR_DQUOTE || pswit[QPARA_SWITCH])
  1515 	    {
  1516                 if (!pswit[OVERVIEW_SWITCH])
  1517 		{
  1518                     if (pswit[ECHO_SWITCH])
  1519 			printf("\n%s\n",parastart);
  1520                     printf(dquote_err);
  1521 		}
  1522                 else
  1523                     cnt_dquot++;
  1524             }
  1525         if (*squote_err)
  1526 	{
  1527             if (*t!=CHAR_SQUOTE && *t!=CHAR_OPEN_SQUOTE ||
  1528 	      pswit[QPARA_SWITCH] || squot)
  1529 	    {
  1530                 if (!pswit[OVERVIEW_SWITCH])
  1531 		{
  1532                     if (pswit[ECHO_SWITCH])
  1533 			printf("\n%s\n",parastart);
  1534                     printf(squote_err);
  1535 		}
  1536                 else
  1537                     cnt_squot++;
  1538 	    }
  1539             squot=0;
  1540 	}
  1541         if (*rbrack_err)
  1542 	{
  1543             if (!pswit[OVERVIEW_SWITCH])
  1544 	    {
  1545                 if (pswit[ECHO_SWITCH])
  1546 		    printf("\n%s\n",parastart);
  1547                 printf(rbrack_err);
  1548 	    }
  1549             else
  1550                 cnt_brack++;
  1551 	}
  1552         if (*sbrack_err)
  1553 	{
  1554             if (!pswit[OVERVIEW_SWITCH])
  1555 	    {
  1556                 if (pswit[ECHO_SWITCH])
  1557 		    printf("\n%s\n",parastart);
  1558                 printf(sbrack_err);
  1559 	    }
  1560             else
  1561                 cnt_brack++;
  1562 	}
  1563         if (*cbrack_err)
  1564 	{
  1565             if (!pswit[OVERVIEW_SWITCH])
  1566 	    {
  1567                 if (pswit[ECHO_SWITCH])
  1568 		    printf("\n%s\n",parastart);
  1569                 printf(cbrack_err);
  1570 	    }
  1571             else
  1572                 cnt_brack++;
  1573 	}
  1574         if (*unders_err)
  1575 	{
  1576             if (!pswit[OVERVIEW_SWITCH])
  1577 	    {
  1578                 if (pswit[ECHO_SWITCH])
  1579 		    printf("\n%s\n",parastart);
  1580                 printf(unders_err);
  1581 	    }
  1582             else
  1583                 cnt_brack++;
  1584 	}
  1585         *dquote_err=*squote_err=*rbrack_err=*cbrack_err= 
  1586 	  *sbrack_err=*unders_err=0;
  1587 	isemptyline=analyse_quotes(aline,&counters);
  1588         if (isnewpara && !isemptyline)
  1589 	{
  1590 	    /* This line is the start of a new paragraph. */
  1591             start_para_line=linecnt;
  1592 	    /* Capture its first line in case we want to report it later. */
  1593             strncpy(parastart,aline,80);
  1594             parastart[79]=0;
  1595             dquotepar=squotepar=0; /* restart the quote count */
  1596             s=aline;
  1597             while (!gcisalpha(*s) && !gcisdigit(*s) && *s)
  1598 		s++;
  1599             if (*s>='a' && *s<='z')
  1600 	    {
  1601 		/* and its first letter is lowercase */
  1602                 if (pswit[ECHO_SWITCH])
  1603 		    printf("\n%s\n",aline);
  1604                 if (!pswit[OVERVIEW_SWITCH])
  1605                     printf("    Line %ld column %d - "
  1606 		      "Paragraph starts with lower-case\n",
  1607 		      linecnt,(int)(s-aline)+1);
  1608                 else
  1609                     cnt_punct++;
  1610 	    }
  1611             isnewpara=0; /* Signal the end of new para processing. */
  1612 	}
  1613         /* Check for an em-dash broken at line end. */
  1614         if (enddash && *aline=='-')
  1615 	{
  1616             if (pswit[ECHO_SWITCH])
  1617 		printf("\n%s\n",aline);
  1618             if (!pswit[OVERVIEW_SWITCH])
  1619                 printf("    Line %ld column 1 - Broken em-dash?\n",linecnt);
  1620             else
  1621                 cnt_punct++;
  1622 	}
  1623         enddash=0;
  1624         for (s=aline+strlen(aline)-1;*s==' ' && s>aline;s--)
  1625 	    ;
  1626         if (s>=aline && *s=='-')
  1627             enddash=1;
  1628 	/*
  1629          * Check for invalid or questionable characters in the line
  1630          * Anything above 127 is invalid for plain ASCII, and
  1631          * non-printable control characters should also be flagged.
  1632          * Tabs should generally not be there.
  1633 	 */
  1634         for (s=aline;*s;s++)
  1635 	{
  1636             i=(unsigned char)*s;
  1637             if (i<CHAR_SPACE && i!=CHAR_LF && i!=CHAR_CR && i!=CHAR_TAB)
  1638 	    {
  1639                 if (pswit[ECHO_SWITCH])
  1640 		    printf("\n%s\n",aline);
  1641                 if (!pswit[OVERVIEW_SWITCH])
  1642                     printf("    Line %ld column %d - Control character %d\n",
  1643 		      linecnt,(int)(s-aline)+1,i);
  1644                 else
  1645                     cnt_bin++;
  1646 	    }
  1647 	}
  1648         if (warnings->bin)
  1649 	    check_for_odd_characters(aline,warnings,isemptyline);
  1650         if (warnings->longline)
  1651 	    check_for_long_line(aline);
  1652         if (warnings->shortline)
  1653 	    check_for_short_line(aline,&last);
  1654         last.blen=last.len;
  1655         last.len=strlen(aline);
  1656         last.start=aline[0];
  1657 	check_for_starting_punctuation(aline);
  1658         if (warnings->dash)
  1659 	{
  1660 	    check_for_spaced_emdash(aline);
  1661 	    check_for_spaced_dash(aline);
  1662 	}
  1663 	check_for_unmarked_paragraphs(aline);
  1664 	check_for_jeebies(aline);
  1665 	check_for_mta_from(aline);
  1666 	check_for_orphan_character(aline);
  1667 	check_for_pling_scanno(aline);
  1668         /*
  1669 	 * Check for period without a capital letter. Cut-down from gutspell.
  1670          * Only works when it happens on a single line.
  1671 	 */
  1672         if (pswit[PARANOID_SWITCH])
  1673 	{
  1674             for (t=s=aline;strstr(t,". ");)
  1675 	    {
  1676                 t=strstr(t,". ");
  1677                 if (t==s)
  1678 		{
  1679                     t++;
  1680 		    /* start of line punctuation is handled elsewhere */
  1681                     continue;
  1682 		}
  1683                 if (!gcisalpha(t[-1]))
  1684 		{
  1685                     t++;
  1686                     continue;
  1687 		}
  1688                 if (warnings->isDutch)
  1689 		{
  1690 		    /* For Frank & Jeroen -- 's Middags case */
  1691                     if (t[2]==CHAR_SQUOTE && t[3]>='a' && t[3]<='z' &&
  1692 		      t[4]==CHAR_SPACE && t[5]>='A' && t[5]<='Z')
  1693 		    {
  1694                         t++;
  1695                         continue;
  1696 		    }
  1697 		}
  1698                 s1=t+2;
  1699                 while (*s1 && !gcisalpha(*s1) && !isdigit(*s1))
  1700                     s1++;
  1701                 if (*s1>='a' && *s1<='z')
  1702 		{
  1703 		    /* we have something to investigate */
  1704                     istypo=1;
  1705 		    /* so let's go back and find out */
  1706                     for (s1=t-1;s1>=s &&
  1707 		      (gcisalpha(*s1) || gcisdigit(*s1) || *s1==CHAR_SQUOTE &&
  1708 		      gcisalpha(s1[1]) && gcisalpha(s1[-1]));s1--)
  1709 			;
  1710                     s1++;
  1711                     for (i=0;*s1 && *s1!='.';s1++,i++)
  1712                         testword[i]=*s1;
  1713                     testword[i]=0;
  1714                     for (i=0;*abbrev[i];i++)
  1715                         if (!strcmp(testword,abbrev[i]))
  1716                             istypo=0;
  1717                     if (gcisdigit(*testword))
  1718 			istypo=0;
  1719                     if (!testword[1])
  1720 			istypo=0;
  1721                     if (isroman(testword))
  1722 			istypo=0;
  1723                     if (istypo)
  1724 		    {
  1725                         istypo=0;
  1726                         for (i=0;testword[i];i++)
  1727                             if (strchr(vowels,testword[i]))
  1728                                 istypo=1;
  1729 		    }
  1730                     if (istypo)
  1731 		    {
  1732                         isdup=0;
  1733                         if (strlen(testword)<MAX_QWORD_LENGTH &&
  1734 			  !pswit[VERBOSE_SWITCH])
  1735                             for (i=0;i<qperiod_index;i++)
  1736                                 if (!strcmp(testword,qperiod[i]))
  1737                                     isdup=1;
  1738                         if (!isdup)
  1739 			{
  1740                             if (qperiod_index<MAX_QWORD &&
  1741 			      strlen(testword)<MAX_QWORD_LENGTH)
  1742 			    {
  1743                                 strcpy(qperiod[qperiod_index],testword);
  1744                                 qperiod_index++;
  1745 			    }
  1746                             if (pswit[ECHO_SWITCH])
  1747 				printf("\n%s\n",aline);
  1748                             if (!pswit[OVERVIEW_SWITCH])
  1749                                 printf("    Line %ld column %d - "
  1750 				  "Extra period?\n",linecnt,(int)(t-aline)+1);
  1751                             else
  1752                                 cnt_punct++;
  1753 			}
  1754 		    }
  1755 		}
  1756 	    t++;
  1757 	    }
  1758 	}
  1759         if (pswit[TYPO_SWITCH])
  1760 	{
  1761             /* Check for words usually not followed by punctuation. */
  1762             for (s=aline;*s;)
  1763 	    {
  1764                 wordstart=s;
  1765                 s=getaword(s,inword);
  1766                 if (!*inword)
  1767 		    continue;
  1768                 lowerit(inword);
  1769                 for (i=0;*nocomma[i];i++)
  1770                     if (!strcmp(inword,nocomma[i]))
  1771 		    {
  1772                         if (*s==',' || *s==';' || *s==':')
  1773 			{
  1774                             if (pswit[ECHO_SWITCH])
  1775 				printf("\n%s\n",aline);
  1776                             if (!pswit[OVERVIEW_SWITCH])
  1777                                 printf("    Line %ld column %d - "
  1778 				  "Query punctuation after %s?\n",
  1779 				  linecnt,(int)(s-aline)+1,inword);
  1780                             else
  1781                                 cnt_punct++;
  1782 			}
  1783 		    }
  1784 		for (i=0;*noperiod[i];i++)
  1785                     if (!strcmp(inword,noperiod[i]))
  1786 		    {
  1787                         if (*s=='.' || *s=='!')
  1788 			{
  1789                             if (pswit[ECHO_SWITCH])
  1790 				printf("\n%s\n",aline);
  1791                             if (!pswit[OVERVIEW_SWITCH])
  1792                                 printf("    Line %ld column %d - "
  1793 				  "Query punctuation after %s?\n",
  1794 				  linecnt,(int)(s-aline)+1,inword);
  1795                             else
  1796                                 cnt_punct++;
  1797 			}
  1798 		    }
  1799 	    }
  1800 	}
  1801         /*
  1802 	 * Check for commonly mistyped words,
  1803 	 * and digits like 0 for O in a word.
  1804 	 */
  1805         for (s=aline;*s;)
  1806 	{
  1807             wordstart=s;
  1808             s=getaword(s,inword);
  1809             if (!*inword)
  1810 		continue; /* don't bother with empty lines */
  1811             if (mixdigit(inword))
  1812 	    {
  1813                 if (pswit[ECHO_SWITCH])
  1814 		    printf("\n%s\n",aline);
  1815                 if (!pswit[OVERVIEW_SWITCH])
  1816                     printf("    Line %ld column %d - Query digit in %s\n",
  1817 		      linecnt,(int)(wordstart-aline)+1,inword);
  1818                 else
  1819                     cnt_word++;
  1820 	    }
  1821             /*
  1822 	     * Put the word through a series of tests for likely typos and OCR
  1823 	     * errors.
  1824 	     */
  1825             if (pswit[TYPO_SWITCH])
  1826 	    {
  1827                 istypo=0;
  1828                 strcpy(testword,inword);
  1829                 alower=0;
  1830                 for (i=0;i<(signed int)strlen(testword);i++)
  1831 		{
  1832 		    /* lowercase for testing */
  1833                     if (testword[i]>='a' && testword[i]<='z')
  1834 			alower=1;
  1835                     if (alower && testword[i]>='A' && testword[i]<='Z')
  1836 		    {
  1837                         /*
  1838 			 * We have an uppercase mid-word. However, there are
  1839 			 * common cases:
  1840                          *   Mac and Mc like McGill
  1841                          *   French contractions like l'Abbe
  1842 			 */
  1843                         if (i==2 && testword[0]=='m' && testword[1]=='c' ||
  1844                           i==3 && testword[0]=='m' && testword[1]=='a' &&
  1845 			  testword[2]=='c' || i>0 && testword[i-1]==CHAR_SQUOTE)
  1846 			    ; /* do nothing! */
  1847                         else
  1848                             istypo=1;
  1849 		    }
  1850                     testword[i]=(char)tolower(testword[i]);
  1851 		}
  1852                 /*
  1853 		 * Check for certain unlikely two-letter combinations at word
  1854 		 * start and end.
  1855 		 */
  1856                 if (strlen(testword)>1)
  1857 		{
  1858                     for (i=0;*nostart[i];i++)
  1859                         if (!strncmp(testword,nostart[i],2))
  1860                             istypo=1;
  1861                     for (i=0;*noend[i];i++)
  1862                         if (!strncmp(testword+strlen(testword)-2,noend[i],2))
  1863                             istypo=1;
  1864 		}
  1865                 /* ght is common, gbt never. Like that. */
  1866                 if (strstr(testword,"cb"))
  1867 		    istypo=1;
  1868                 if (strstr(testword,"gbt"))
  1869 		    istypo=1;
  1870                 if (strstr(testword,"pbt"))
  1871 		    istypo=1;
  1872                 if (strstr(testword,"tbs"))
  1873 		    istypo=1;
  1874                 if (strstr(testword,"mrn"))
  1875 		    istypo=1;
  1876                 if (strstr(testword,"ahle"))
  1877 		    istypo=1;
  1878                 if (strstr(testword,"ihle"))
  1879 		    istypo=1;
  1880                 /*
  1881 		 * "TBE" does happen - like HEARTBEAT - but uncommon.
  1882                  * Also "TBI" - frostbite, outbid - but uncommon.
  1883                  * Similarly "ii" like Hawaii, or Pompeii, and in Roman
  1884 		 * numerals, but "ii" is a common scanno.
  1885 		 */
  1886                 if (strstr(testword,"tbi"))
  1887 		    istypo=1;
  1888                 if (strstr(testword,"tbe"))
  1889 		    istypo=1;
  1890                 if (strstr(testword,"ii"))
  1891 		    istypo=1;
  1892                 /*
  1893 		 * Check for no vowels or no consonants.
  1894                  * If none, flag a typo.
  1895 		 */
  1896                 if (!istypo && strlen(testword)>1)
  1897 		{
  1898                     vowel=consonant=0;
  1899                     for (i=0;testword[i];i++)
  1900 		    {
  1901                         if (testword[i]=='y' || gcisdigit(testword[i]))
  1902 			{
  1903 			    /* Yah, this is loose. */
  1904                             vowel++;
  1905                             consonant++;
  1906 			}
  1907                         else if (strchr(vowels,testword[i]))
  1908 			    vowel++;
  1909 			else
  1910 			    consonant++;
  1911 		    }
  1912                     if (!vowel || !consonant)
  1913                         istypo=1;
  1914 		}
  1915                 /*
  1916 		 * Now exclude the word from being reported if it's in
  1917                  * the okword list.
  1918 		 */
  1919                 for (i=0;*okword[i];i++)
  1920                     if (!strcmp(testword,okword[i]))
  1921                         istypo=0;
  1922                 /*
  1923 		 * What looks like a typo may be a Roman numeral.
  1924 		 * Exclude these.
  1925 		 */
  1926                 if (istypo && isroman(testword))
  1927 		    istypo=0;
  1928                 /* Check the manual list of typos. */
  1929                 if (!istypo)
  1930                     for (i=0;*typo[i];i++)
  1931                         if (!strcmp(testword,typo[i]))
  1932                             istypo=1;
  1933                 /*
  1934 		 * Check lowercase s, l, i and m - special cases.
  1935                  *   "j" - often a semi-colon gone wrong.
  1936                  *   "d" for a missing apostrophe - he d
  1937                  *   "n" for "in"
  1938 		 */
  1939                 if (!istypo && strlen(testword)==1 && strchr("slmijdn",*inword))
  1940 		    istypo=1;
  1941                 if (istypo)
  1942 		{
  1943                     isdup=0;
  1944                     if (strlen(testword)<MAX_QWORD_LENGTH &&
  1945 		      !pswit[VERBOSE_SWITCH])
  1946                         for (i=0;i<qword_index;i++)
  1947                             if (!strcmp(testword,qword[i]))
  1948 			    {
  1949                                 isdup=1;
  1950                                 ++dupcnt[i];
  1951 			    }
  1952                     if (!isdup)
  1953 		    {
  1954                         if (qword_index<MAX_QWORD &&
  1955 			  strlen(testword)<MAX_QWORD_LENGTH)
  1956 			{
  1957                             strcpy(qword[qword_index],testword);
  1958                             qword_index++;
  1959 			}
  1960                         if (pswit[ECHO_SWITCH])
  1961 			    printf("\n%s\n",aline);
  1962                         if (!pswit[OVERVIEW_SWITCH])
  1963 			{
  1964                             printf("    Line %ld column %d - Query word %s",
  1965 			      linecnt,(int)(wordstart-aline)+1,inword);
  1966                             if (strlen(testword)<MAX_QWORD_LENGTH &&
  1967 			      !pswit[VERBOSE_SWITCH])
  1968                                 printf(" - not reporting duplicates");
  1969                             printf("\n");
  1970 			}
  1971                         else
  1972                             cnt_word++;
  1973 		    }
  1974 		}
  1975 	    }
  1976 	    /* check the user's list of typos */
  1977 	    if (!istypo && usertypo_count)
  1978 		for (i=0;i<usertypo_count;i++)
  1979 		    if (!strcmp(testword,usertypo[i]))
  1980 		    {
  1981 			if (pswit[ECHO_SWITCH])
  1982 			    printf("\n%s\n",aline);
  1983 			if (!pswit[OVERVIEW_SWITCH])  
  1984 			    printf("    Line %ld column %d - "
  1985 			      "Query possible scanno %s\n",
  1986 			      linecnt,(int)(wordstart-aline)+2,inword);
  1987 		    }
  1988             if (pswit[PARANOID_SWITCH] && warnings->digit)
  1989 	    {
  1990 		/* In paranoid mode, query all 0 and 1 standing alone. */
  1991                 if (!strcmp(inword,"0") || !strcmp(inword,"1"))
  1992 		{
  1993                     if (pswit[ECHO_SWITCH])
  1994 			printf("\n%s\n",aline);
  1995                     if (!pswit[OVERVIEW_SWITCH])
  1996                         printf("    Line %ld column %d - Query standalone %s\n",
  1997 			  linecnt,(int)(wordstart-aline)+2,inword);
  1998                     else
  1999                         cnt_word++;
  2000 		}
  2001 	    }
  2002 	}
  2003 	/*
  2004          * Look for added or missing spaces around punctuation and quotes.
  2005          * If there is a punctuation character like ! with no space on
  2006          * either side, suspect a missing!space. If there are spaces on
  2007          * both sides , assume a typo. If we see a double quote with no
  2008          * space or punctuation on either side of it, assume unspaced
  2009          * quotes "like"this.
  2010 	 */
  2011         llen=strlen(aline);
  2012         for (i=1;i<llen;i++)
  2013 	{
  2014 	    /* For each character in the line after the first. */
  2015             if (strchr(".?!,;:_",aline[i]))  /* if it's punctuation */
  2016 	    {
  2017 		/* we need to suppress warnings for acronyms like M.D. */
  2018                 isacro=0;
  2019 		/* we need to suppress warnings for ellipsis . . . */
  2020                 isellipsis=0;
  2021 		/* if there are letters on both sides of it or ... */
  2022                 if (gcisalpha(aline[i-1]) && gcisalpha(aline[i+1]) ||
  2023                    gcisalpha(aline[i+1]) && strchr("?!,;:",aline[i]))
  2024 		{
  2025 		    /* ...if it's strict punctuation followed by an alpha */
  2026                     if (aline[i]=='.')
  2027 		    {
  2028                         if (i>2 && aline[i-2]=='.')
  2029 			    isacro=1;
  2030                         if (i+2<llen && aline[i+2]=='.')
  2031 			    isacro=1;
  2032 		    }
  2033                     if (!isacro)
  2034 		    {
  2035                         if (pswit[ECHO_SWITCH])
  2036 			    printf("\n%s\n",aline);
  2037                         if (!pswit[OVERVIEW_SWITCH])
  2038                             printf("    Line %ld column %d - Missing space?\n",
  2039 			      linecnt,i+1);
  2040                         else
  2041                             cnt_punct++;
  2042 		    }
  2043 		}
  2044                 if (aline[i-1]==CHAR_SPACE &&
  2045 		  (aline[i+1]==CHAR_SPACE || aline[i+1]==0))
  2046 		{
  2047 		    /*
  2048 		     * If there are spaces on both sides,
  2049 		     * or space before and end of line.
  2050 		     */
  2051                     if (aline[i]=='.')
  2052 		    {
  2053                         if (i>2 && aline[i-2]=='.')
  2054 			    isellipsis=1;
  2055                         if (i+2<llen && aline[i+2]=='.')
  2056 			    isellipsis=1;
  2057 		    }
  2058                     if (!isemptyline && !isellipsis)
  2059 		    {
  2060                         if (pswit[ECHO_SWITCH])
  2061 			    printf("\n%s\n",aline);
  2062                         if (!pswit[OVERVIEW_SWITCH])
  2063                             printf("    Line %ld column %d - "
  2064 			      "Spaced punctuation?\n",linecnt,i+1);
  2065                         else
  2066                             cnt_punct++;
  2067 		    }
  2068 		}
  2069 	    }
  2070 	}
  2071         /* Split out the characters that CANNOT be preceded by space. */
  2072         llen=strlen(aline);
  2073         for (i=1;i<llen;i++)
  2074 	{
  2075 	    /* for each character in the line after the first */
  2076             if (strchr("?!,;:",aline[i]))
  2077 	    {
  2078 		/* if it's punctuation that _cannot_ have a space before it */
  2079                 if (aline[i-1]==CHAR_SPACE && !isemptyline &&
  2080 		  aline[i+1]!=CHAR_SPACE)
  2081 		{
  2082 		    /*
  2083 		     * If aline[i+1) DOES == space,
  2084 		     * it was already reported just above.
  2085 		     */
  2086                     if (pswit[ECHO_SWITCH])
  2087 			printf("\n%s\n",aline);
  2088                     if (!pswit[OVERVIEW_SWITCH])
  2089                         printf("    Line %ld column %d - Spaced punctuation?\n",
  2090 			  linecnt,i+1);
  2091                     else
  2092                         cnt_punct++;
  2093 		}
  2094 	    }
  2095 	}
  2096         /*
  2097 	 * Special case " .X" where X is any alpha.
  2098          * This plugs a hole in the acronym code above.
  2099 	 * Inelegant, but maintainable.
  2100 	 */
  2101         llen=strlen(aline);
  2102         for (i=1;i<llen;i++)
  2103 	{
  2104 	    /* for each character in the line after the first */
  2105             if (aline[i]=='.')
  2106 	    {
  2107 		/* if it's a period */
  2108                 if (aline[i-1]==CHAR_SPACE && gcisalpha(aline[i+1]))
  2109 		{
  2110 		    /*
  2111 		     * If the period follows a space and
  2112 		     * is followed by a letter.
  2113 		     */
  2114                     if (pswit[ECHO_SWITCH])
  2115 			printf("\n%s\n",aline);
  2116                     if (!pswit[OVERVIEW_SWITCH])
  2117                         printf("    Line %ld column %d - Spaced punctuation?\n",
  2118 			  linecnt,i+1);
  2119                     else
  2120                         cnt_punct++;
  2121 		}
  2122 	    }
  2123 	}
  2124         for (i=1;i<llen;i++)
  2125 	{
  2126 	    /* for each character in the line after the first */
  2127             if (aline[i]==CHAR_DQUOTE)
  2128 	    {
  2129                 if (!strchr(" _-.'`,;:!/([{?}])",aline[i-1]) &&
  2130 		  !strchr(" _-.'`,;:!/([{?}])",aline[i+1]) && aline[i+1] ||
  2131 		  !strchr(" _-([{'`",aline[i-1]) && gcisalpha(aline[i+1]))
  2132 		{
  2133 		    if (pswit[ECHO_SWITCH])
  2134 			printf("\n%s\n",aline);
  2135 		    if (!pswit[OVERVIEW_SWITCH])
  2136 			printf("    Line %ld column %d - Unspaced quotes?\n",
  2137 			  linecnt,i+1);
  2138 		    else
  2139 			cnt_punct++;
  2140 		}
  2141 	    }
  2142 	}
  2143         /* Check parity of quotes. */
  2144         for (s=aline;*s;s++)
  2145 	{
  2146             if (*s==CHAR_DQUOTE)
  2147 	    {
  2148                 if (!(dquotepar=!dquotepar))
  2149 		{
  2150 		    /* parity even */
  2151                     if (!strchr("_-.'`/,;:!?)]} ",s[1]))
  2152 		    {
  2153                         if (pswit[ECHO_SWITCH])
  2154 			    printf("\n%s\n",aline);
  2155                         if (!pswit[OVERVIEW_SWITCH])
  2156                             printf("    Line %ld column %d - "
  2157 			      "Wrongspaced quotes?\n",linecnt,(int)(s-aline)+1);
  2158                         else
  2159                             cnt_punct++;
  2160 		    }
  2161 		}
  2162                 else
  2163 		{
  2164 		    /* parity odd */
  2165                     if (!gcisalpha(s[1]) && !isdigit(s[1]) &&
  2166 		      !strchr("_-/.'`([{$",s[1]) || !s[1])
  2167 		    {
  2168                         if (pswit[ECHO_SWITCH])
  2169 			    printf("\n%s\n",aline);
  2170                         if (!pswit[OVERVIEW_SWITCH])
  2171                             printf("    Line %ld column %d - "
  2172 			      "Wrongspaced quotes?\n",linecnt,(int)(s-aline)+1);
  2173                         else
  2174                             cnt_punct++;
  2175 		    }
  2176 		}
  2177 	    }
  2178 	}
  2179 	if (*aline==CHAR_DQUOTE)
  2180 	{
  2181 	    if (strchr(",;:!?)]} ",aline[1]))
  2182 	    {
  2183 		if (pswit[ECHO_SWITCH])
  2184 		    printf("\n%s\n",aline);
  2185 		if (!pswit[OVERVIEW_SWITCH])
  2186 		    printf("    Line %ld column 1 - Wrongspaced quotes?\n",
  2187 		      linecnt);
  2188 		else
  2189 		    cnt_punct++;
  2190 	    }
  2191 	}
  2192         if (pswit[SQUOTE_SWITCH])
  2193 	{
  2194             for (s=aline;*s;s++)
  2195 	    {
  2196                 if ((*s==CHAR_SQUOTE || *s==CHAR_OPEN_SQUOTE) &&
  2197 		  (s==aline || s>aline && !gcisalpha(s[-1]) ||
  2198 		  !gcisalpha(s[1])))
  2199 		{
  2200                     if (!(squotepar=!squotepar))
  2201 		    {
  2202 			/* parity even */
  2203                         if (!strchr("_-.'`/\",;:!?)]} ",s[1]))
  2204 			{
  2205                             if (pswit[ECHO_SWITCH])
  2206 				printf("\n%s\n",aline);
  2207                             if (!pswit[OVERVIEW_SWITCH])
  2208                                 printf("    Line %ld column %d - "
  2209 				  "Wrongspaced singlequotes?\n",
  2210 				  linecnt,(int)(s-aline)+1);
  2211                             else
  2212                                 cnt_punct++;
  2213 			}
  2214 		    }
  2215                     else
  2216 		    {
  2217 			/* parity odd */
  2218                         if (!gcisalpha(s[1]) && !isdigit(s[1]) &&
  2219 			  !strchr("_-/\".'`",s[1]) || !s[1])
  2220 			{
  2221                             if (pswit[ECHO_SWITCH])
  2222 				printf("\n%s\n",aline);
  2223                             if (!pswit[OVERVIEW_SWITCH])
  2224                                 printf("    Line %ld column %d - "
  2225 				  "Wrongspaced singlequotes?\n",
  2226 				  linecnt,(int)(s-aline)+1);
  2227                             else
  2228                                 cnt_punct++;
  2229 			}
  2230 		    }
  2231 		}
  2232 	    }
  2233 	}
  2234         /*
  2235 	 * Look for double punctuation like ,. or ,,
  2236          * Thanks to DW for the suggestion!
  2237          * In books with references, ".," and ".;" are common
  2238          * e.g. "etc., etc.," and vol. 1.; vol 3.;
  2239          * OTOH, from my initial tests, there are also fairly
  2240          * common errors. What to do? Make these cases paranoid?
  2241          * ".," is the most common, so warnings->dotcomma is used
  2242          * to suppress detailed reporting if it occurs often.
  2243 	 */
  2244         llen=strlen(aline);
  2245         for (i=0;i<llen;i++)
  2246 	{
  2247 	    /* for each punctuation character in the line */
  2248             if (strchr(".?!,;:",aline[i]) && (strchr(".?!,;:",aline[i+1])) &&
  2249 	      aline[i] && aline[i+1])
  2250 	    {
  2251 		/* followed by punctuation, it's a query, unless . . . */
  2252                 if (aline[i]==aline[i+1] && (aline[i]=='.' || aline[i]=='?' ||
  2253 		  aline[i]=='!') ||
  2254 		  !warnings->dotcomma && aline[i]=='.' && aline[i+1]==',' ||
  2255 		  warnings->isFrench && !strncmp(aline+i,",...",4) ||
  2256 		  warnings->isFrench && !strncmp(aline+i,"...,",4) ||
  2257 		  warnings->isFrench && !strncmp(aline+i,";...",4) ||
  2258 		  warnings->isFrench && !strncmp(aline+i,"...;",4) ||
  2259 		  warnings->isFrench && !strncmp(aline+i,":...",4) ||
  2260 		  warnings->isFrench && !strncmp(aline+i,"...:",4) ||
  2261 		  warnings->isFrench && !strncmp(aline+i,"!...",4) ||
  2262 		  warnings->isFrench && !strncmp(aline+i,"...!",4) ||
  2263 		  warnings->isFrench && !strncmp(aline+i,"?...",4) ||
  2264 		  warnings->isFrench && !strncmp(aline+i,"...?",4))
  2265 		{
  2266 		    if (warnings->isFrench && !strncmp(aline+i,",...",4) ||
  2267 		      warnings->isFrench && !strncmp(aline+i,"...,",4) ||
  2268 		      warnings->isFrench && !strncmp(aline+i,";...",4) ||
  2269 		      warnings->isFrench && !strncmp(aline+i,"...;",4) ||
  2270 		      warnings->isFrench && !strncmp(aline+i,":...",4) ||
  2271 		      warnings->isFrench && !strncmp(aline+i,"...:",4) ||
  2272 		      warnings->isFrench && !strncmp(aline+i,"!...",4) ||
  2273 		      warnings->isFrench && !strncmp(aline+i,"...!",4) ||
  2274 		      warnings->isFrench && !strncmp(aline+i,"?...",4) ||
  2275 		      warnings->isFrench && !strncmp(aline+i,"...?",4))
  2276 			i+=4;
  2277 		    ; /* do nothing for .. !! and ?? which can be legit */
  2278 		}
  2279                 else
  2280 		{
  2281                     if (pswit[ECHO_SWITCH])
  2282 			printf("\n%s\n",aline);
  2283                     if (!pswit[OVERVIEW_SWITCH])
  2284                         printf("    Line %ld column %d - Double punctuation?\n",
  2285 			  linecnt,i+1);
  2286                     else
  2287                         cnt_punct++;
  2288 		}
  2289 	    }
  2290 	}
  2291         s=aline;
  2292         while (strstr(s," \" "))
  2293 	{
  2294             if (pswit[ECHO_SWITCH])
  2295 		printf("\n%s\n",aline);
  2296             if (!pswit[OVERVIEW_SWITCH])
  2297                 printf("    Line %ld column %d - Spaced doublequote?\n",
  2298 		  linecnt,(int)(strstr(s," \" ")-aline+1));
  2299             else
  2300                 cnt_punct++;
  2301             s=strstr(s," \" ")+2;
  2302 	}
  2303         s=aline;
  2304         while (strstr(s," ' "))
  2305 	{
  2306             if (pswit[ECHO_SWITCH])
  2307 		printf("\n%s\n",aline);
  2308             if (!pswit[OVERVIEW_SWITCH])
  2309                 printf("    Line %ld column %d - Spaced singlequote?\n",
  2310 		  linecnt,(int)(strstr(s," ' ")-aline+1));
  2311             else
  2312                 cnt_punct++;
  2313             s=strstr(s," ' ")+2;
  2314 	}
  2315         s=aline;
  2316         while (strstr(s," ` "))
  2317 	{
  2318             if (pswit[ECHO_SWITCH])
  2319 		printf("\n%s\n",aline);
  2320             if (!pswit[OVERVIEW_SWITCH])
  2321                 printf("    Line %ld column %d - Spaced singlequote?\n",
  2322 		  linecnt,(int)(strstr(s," ` ")-aline+1));
  2323             else
  2324                 cnt_punct++;
  2325             s=strstr(s," ` ")+2;
  2326 	}
  2327         /* check special case of 'S instead of 's at end of word */
  2328         s=aline+1;
  2329         while (*s)
  2330 	{
  2331             if (*s==CHAR_SQUOTE && s[1]=='S' && s[-1]>='a' && s[-1]<='z')
  2332 	    {
  2333                 if (pswit[ECHO_SWITCH])
  2334 		    printf("\n%s\n",aline);
  2335                 if (!pswit[OVERVIEW_SWITCH])
  2336                     printf("    Line %ld column %d - Capital \"S\"?\n",
  2337 		      linecnt,(int)(s-aline+2));
  2338                 else
  2339                     cnt_punct++;
  2340 	    }
  2341             s++;
  2342 	}
  2343         /*
  2344 	 * Now check special cases - start and end of line -
  2345          * for single and double quotes. Start is sometimes [sic]
  2346          * but better to query it anyway.
  2347          * While we're here, check for dash at end of line.
  2348 	 */
  2349         llen=strlen(aline);
  2350         if (llen>1)
  2351 	{
  2352             if (aline[llen-1]==CHAR_DQUOTE || aline[llen-1]==CHAR_SQUOTE ||
  2353 	      aline[llen-1]==CHAR_OPEN_SQUOTE)
  2354                 if (aline[llen-2]==CHAR_SPACE)
  2355 		{
  2356                     if (pswit[ECHO_SWITCH])
  2357 			printf("\n%s\n",aline);
  2358                     if (!pswit[OVERVIEW_SWITCH])
  2359                         printf("    Line %ld column %d - Spaced quote?\n",
  2360 			  linecnt,llen);
  2361                     else
  2362                         cnt_punct++;
  2363 		}
  2364             if ((aline[0]==CHAR_SQUOTE || aline[0]==CHAR_OPEN_SQUOTE) &&
  2365 	      aline[1]==CHAR_SPACE)
  2366 	    {
  2367 		if (pswit[ECHO_SWITCH])
  2368 		    printf("\n%s\n",aline);
  2369 		if (!pswit[OVERVIEW_SWITCH])
  2370 		    printf("    Line %ld column 1 - Spaced quote?\n",linecnt);
  2371 		else
  2372 		    cnt_punct++;
  2373 	    }
  2374             /*
  2375 	     * Dash at end of line may well be legit - paranoid mode only
  2376              * and don't report em-dash at line-end.
  2377 	     */
  2378             if (pswit[PARANOID_SWITCH] && warnings->hyphen)
  2379 	    {
  2380                 for (i=llen-1;i>0 && (unsigned char)aline[i]<=CHAR_SPACE;i--)
  2381 		    ;
  2382                 if (aline[i]=='-' && aline[i-1]!='-')
  2383 		{
  2384                     if (pswit[ECHO_SWITCH])
  2385 			printf("\n%s\n",aline);
  2386                     if (!pswit[OVERVIEW_SWITCH])
  2387                         printf("    Line %ld column %d - "
  2388 			  "Hyphen at end of line?\n",linecnt,i);
  2389 		}
  2390 	    }
  2391 	}
  2392         /*
  2393 	 * Brackets are often unspaced, but shouldn't be surrounded by alpha.
  2394          * If so, suspect a scanno like "a]most".
  2395 	 */
  2396         llen=strlen(aline);
  2397         for (i=1;i<llen-1;i++)
  2398 	{
  2399 	    /* for each bracket character in the line except 1st & last */
  2400             if (strchr("{[()]}",aline[i]) && gcisalpha(aline[i-1]) &&
  2401 	      gcisalpha(aline[i+1]))
  2402 	    {
  2403                 if (pswit[ECHO_SWITCH])
  2404 		    printf("\n%s\n",aline);
  2405                 if (!pswit[OVERVIEW_SWITCH])
  2406                     printf("    Line %ld column %d - Unspaced bracket?\n",
  2407 		      linecnt,i);
  2408                 else
  2409                     cnt_punct++;
  2410 	    }
  2411 	}
  2412         llen=strlen(aline);
  2413         if (warnings->endquote)
  2414 	{
  2415             for (i=1;i<llen;i++)
  2416 	    {
  2417 		/* for each character in the line except 1st */
  2418                 if (aline[i]==CHAR_DQUOTE && isalpha(aline[i-1]))
  2419 		{
  2420 		    if (pswit[ECHO_SWITCH])
  2421 			printf("\n%s\n",aline);
  2422 		    if (!pswit[OVERVIEW_SWITCH])
  2423 			printf("    Line %ld column %d - "
  2424 			  "endquote missing punctuation?\n",linecnt,i);
  2425 		    else
  2426 			cnt_punct++;
  2427 		}
  2428 	    }
  2429 	}
  2430 	/*
  2431          * Check for <HTML TAG>.
  2432          * If there is a < in the line, followed at some point
  2433          * by a > then we suspect HTML.
  2434 	 */
  2435         if (strstr(aline,"<") && strstr(aline,">"))
  2436 	{
  2437             i=(signed int)(strstr(aline,">")-strstr(aline,"<")+1);
  2438             if (i>0)
  2439 	    {
  2440                 strncpy(wrk,strstr(aline,"<"),i);
  2441                 wrk[i]=0;
  2442                 if (pswit[ECHO_SWITCH])
  2443 		    printf("\n%s\n",aline);
  2444                 if (!pswit[OVERVIEW_SWITCH])
  2445                     printf("    Line %ld column %d - HTML Tag? %s \n",
  2446 		      linecnt,(int)(strstr(aline,"<")-aline)+1,wrk);
  2447                 else
  2448                     cnt_html++;
  2449 	    }
  2450 	}
  2451         /*
  2452 	 * Check for &symbol; HTML.
  2453          * If there is a & in the line, followed at
  2454          * some point by a ; then we suspect HTML.
  2455 	 */
  2456         if (strstr(aline,"&") && strstr(aline,";"))
  2457 	{
  2458             i=(int)(strstr(aline,";")-strstr(aline,"&")+1);
  2459             for (s=strstr(aline,"&");s<strstr(aline,";");s++)   
  2460                 if (*s==CHAR_SPACE)
  2461 		    i=0;                /* Don't report "Jones & Son;" */
  2462             if (i>0)
  2463 	    {
  2464                 strncpy(wrk,strstr(aline,"&"),i);
  2465                 wrk[i]=0;
  2466                 if (pswit[ECHO_SWITCH])
  2467 		    printf("\n%s\n",aline);
  2468                 if (!pswit[OVERVIEW_SWITCH])
  2469                     printf("    Line %ld column %d - HTML symbol? %s \n",
  2470 		      linecnt,(int)(strstr(aline,"&")-aline)+1,wrk);
  2471                 else
  2472                     cnt_html++;
  2473 	    }
  2474 	}
  2475         /*
  2476 	 * At end of paragraph, check for mismatched quotes.
  2477          * We don't want to report an error immediately, since it is a
  2478          * common convention to omit the quotes at end of paragraph if
  2479          * the next paragraph is a continuation of the same speaker.
  2480          * Where this is the case, the next para should begin with a
  2481          * quote, so we store the warning message and only display it
  2482          * at the top of the next iteration if the new para doesn't
  2483          * start with a quote.
  2484          * The -p switch overrides this default, and warns of unclosed
  2485          * quotes on _every_ paragraph, whether the next begins with a
  2486          * quote or not.
  2487 	 */
  2488         if (isemptyline)
  2489 	{
  2490 	    /* end of para - add up the totals */
  2491             if (counters.quot%2)
  2492                 sprintf(dquote_err,"    Line %ld - Mismatched quotes\n",
  2493 		  linecnt);
  2494             if (pswit[SQUOTE_SWITCH] && counters.open_single_quote &&
  2495 	      counters.open_single_quote!=counters.close_single_quote)
  2496                 sprintf(squote_err,"    Line %ld - Mismatched singlequotes?\n",
  2497 		  linecnt);
  2498             if (pswit[SQUOTE_SWITCH] && counters.open_single_quote &&
  2499 	      counters.open_single_quote!=counters.close_single_quote &&
  2500 	      counters.open_single_quote!=counters.close_single_quote+1)
  2501 		/*
  2502 		 * Flag it to be noted regardless of the
  2503 		 * first char of the next para.
  2504 		 */
  2505                 squot=1;
  2506             if (counters.r_brack)
  2507                 sprintf(rbrack_err,"    Line %ld - "
  2508 		  "Mismatched round brackets?\n",linecnt);
  2509             if (counters.s_brack)
  2510                 sprintf(sbrack_err,"    Line %ld - "
  2511 		  "Mismatched square brackets?\n",linecnt);
  2512             if (counters.c_brack)
  2513                 sprintf(cbrack_err,"    Line %ld - "
  2514 		  "Mismatched curly brackets?\n",linecnt);
  2515             if (counters.c_unders%2)
  2516                 sprintf(unders_err,"    Line %ld - Mismatched underscores?\n",
  2517 		  linecnt);
  2518 	    memset(&counters,0,sizeof(counters));
  2519 	    /* let the next iteration know that it's starting a new para */
  2520             isnewpara=1;
  2521 	}
  2522         /*
  2523 	 * Check for omitted punctuation at end of paragraph by working back
  2524 	 * through prevline. DW.
  2525          * Need to check this only for "normal" paras.
  2526          * So what is a "normal" para?
  2527          *    Not normal if one-liner (chapter headings, etc.)
  2528          *    Not normal if doesn't contain at least one locase letter
  2529          *    Not normal if starts with space
  2530 	 */
  2531         if (isemptyline)
  2532 	{
  2533 	    /* end of para */
  2534             for (s=prevline,i=0;*s && !i;s++)
  2535                 if (gcisletter(*s))
  2536 		    /* use i to indicate the presence of a letter on the line */
  2537                     i=1;
  2538             /*
  2539 	     * This next "if" is a problem.
  2540              * If we say "start_para_line <= linecnt - 1", that includes
  2541 	     * one-line "paragraphs" like chapter heads. Lotsa false positives.
  2542              * If we say "start_para_line < linecnt - 1" it doesn't, but then it
  2543              * misses genuine one-line paragraphs.
  2544 	     */
  2545             if (i && last.blen>2 && start_para_line<linecnt-1 &&
  2546 	      *prevline>CHAR_SPACE)
  2547 	    {
  2548                 for (i=strlen(prevline)-1;
  2549 		  (prevline[i]==CHAR_DQUOTE || prevline[i]==CHAR_SQUOTE) &&
  2550 		  prevline[i]>CHAR_SPACE && i>0;
  2551 		  i--)
  2552 		    ;
  2553                 for (;i>0;i--)
  2554 		{
  2555                     if (gcisalpha(prevline[i]))
  2556 		    {
  2557                         if (pswit[ECHO_SWITCH])
  2558 			    printf("\n%s\n",prevline);
  2559                         if (!pswit[OVERVIEW_SWITCH])
  2560                             printf("    Line %ld column %d - "
  2561 			      "No punctuation at para end?\n",
  2562 			      linecnt-1,strlen(prevline));
  2563                         else
  2564                             cnt_punct++;
  2565                         break;
  2566 		    }
  2567                     if (strchr("-.:!([{?}])",prevline[i]))
  2568                         break;
  2569 		}
  2570 	    }
  2571 	}
  2572         strcpy(prevline,aline);
  2573     }
  2574     fclose(infile);
  2575     if (!pswit[OVERVIEW_SWITCH])
  2576         for (i=0;i<MAX_QWORD;i++)
  2577             if (dupcnt[i])
  2578                 printf("\nNote: Queried word %s was duplicated %d time%s\n",
  2579 		  qword[i],dupcnt[i],"s");
  2580 }
  2581 
  2582 /*
  2583  * flgets:
  2584  *
  2585  * Get one line from the input stream, checking for
  2586  * the existence of exactly one CR/LF line-end per line.
  2587  *
  2588  * Returns: a pointer to the line.
  2589  */
  2590 char *flgets(char *theline,int maxlen,FILE *thefile,long lcnt)
  2591 {
  2592     char c;
  2593     int len,isCR,cint;
  2594     *theline=0;
  2595     len=isCR=0;
  2596     c=cint=fgetc(thefile);
  2597     do
  2598     {
  2599         if (cint==EOF)
  2600             return NULL;
  2601 	/* either way, it's end of line */
  2602         if (c==10)
  2603 	{
  2604             if (isCR)
  2605                 break;
  2606             else
  2607 	    {
  2608 		/* Error - a LF without a preceding CR */
  2609                 if (pswit[LINE_END_SWITCH])
  2610 		{
  2611                     if (pswit[ECHO_SWITCH])
  2612 			printf("\n%s\n",theline);
  2613                     if (!pswit[OVERVIEW_SWITCH])
  2614                         printf("    Line %ld - No CR?\n",lcnt);
  2615                     else
  2616                         cnt_lineend++;
  2617 		}
  2618                 break;
  2619 	    }
  2620 	}
  2621         if (c==13)
  2622 	{
  2623             if (isCR)
  2624 	    {
  2625 		/* Error - two successive CRs */
  2626                 if (pswit[LINE_END_SWITCH])
  2627 		{
  2628                     if (pswit[ECHO_SWITCH])
  2629 			printf("\n%s\n",theline);
  2630                     if (!pswit[OVERVIEW_SWITCH])
  2631                         printf("    Line %ld - Two successive CRs?\n",lcnt);
  2632                     else
  2633                         cnt_lineend++;
  2634 		}
  2635 	    }
  2636             isCR=1;
  2637 	}
  2638         else
  2639 	{
  2640             if (pswit[LINE_END_SWITCH] && isCR)
  2641 	    {
  2642                 if (pswit[ECHO_SWITCH])
  2643 		    printf("\n%s\n",theline);
  2644                 if (!pswit[OVERVIEW_SWITCH])
  2645                     printf("    Line %ld column %d - CR without LF?\n",
  2646 		      lcnt,len+1);
  2647                 else
  2648                     cnt_lineend++;
  2649 	    }
  2650             theline[len]=c;
  2651             len++;
  2652             theline[len]=0;
  2653             isCR=0;
  2654 	}
  2655         c=cint=fgetc(thefile);
  2656     } while(len<maxlen);
  2657     if (pswit[MARKUP_SWITCH])  
  2658         postprocess_for_HTML(theline);
  2659     if (pswit[DP_SWITCH])  
  2660         postprocess_for_DP(theline);
  2661     return theline;
  2662 }
  2663 
  2664 /*
  2665  * mixdigit:
  2666  *
  2667  * Takes a "word" as a parameter, and checks whether it
  2668  * contains a mixture of alpha and digits. Generally, this is an
  2669  * error, but may not be for cases like 4th or L5 12s. 3d.
  2670  *
  2671  * Returns: 0 if no error found, 1 if error.
  2672  */
  2673 int mixdigit(char *checkword)
  2674 {
  2675     int wehaveadigit,wehavealetter,firstdigits,query,wl;
  2676     char *s;
  2677     wehaveadigit=wehavealetter=query=0;
  2678     for (s=checkword;*s;s++)
  2679         if (gcisalpha(*s))
  2680             wehavealetter=1;
  2681         else
  2682             if (gcisdigit(*s))
  2683                 wehaveadigit=1;
  2684     if (wehaveadigit && wehavealetter)
  2685     {
  2686 	/* Now exclude common legit cases, like "21st" and "12l. 3s. 11d." */
  2687         query=1;
  2688         wl=strlen(checkword);
  2689         for (firstdigits=0;gcisdigit(checkword[firstdigits]);firstdigits++)
  2690             ;
  2691         /* digits, ending in st, rd, nd, th of either case */
  2692         if (firstdigits+2==wl && (matchword(checkword+wl-2,"st") ||
  2693 	  matchword(checkword+wl-2,"rd") || matchword(checkword+wl-2,"nd") ||
  2694 	  matchword(checkword+wl-2,"th")))
  2695 	    query=0;
  2696         if (firstdigits+3==wl && (matchword(checkword+wl-3,"sts") ||
  2697 	  matchword(checkword+wl-3,"rds") || matchword(checkword+wl-3,"nds") ||
  2698 	  matchword(checkword+wl-3,"ths")))
  2699 	    query=0;
  2700         if (firstdigits+3==wl && (matchword(checkword+wl-4,"stly") ||
  2701 	  matchword(checkword+wl-4,"rdly") ||
  2702 	  matchword(checkword+wl-4,"ndly") || matchword(checkword+wl-4,"thly")))
  2703 	    query=0;
  2704         /* digits, ending in l, L, s or d */
  2705         if (firstdigits+1==wl && (checkword[wl-1]=='l' ||
  2706 	  checkword[wl-1]=='L' || checkword[wl-1]=='s' || checkword[wl-1]=='d'))
  2707 	    query=0;
  2708         /*
  2709 	 * L at the start of a number, representing Britsh pounds, like L500.
  2710          * This is cute. We know the current word is mixeddigit. If the first
  2711          * letter is L, there must be at least one digit following. If both
  2712          * digits and letters follow, we have a genuine error, else we have a
  2713          * capital L followed by digits, and we accept that as a non-error.
  2714 	 */
  2715         if (checkword[0]=='L' && !mixdigit(checkword+1))
  2716 	    query=0;
  2717     }
  2718     return query;
  2719 }
  2720 
  2721 /*
  2722  * getaword:
  2723  *
  2724  * Extracts the first/next "word" from the line, and puts
  2725  * it into "thisword". A word is defined as one English word unit--or
  2726  * at least that's the aim.
  2727  *
  2728  * Returns: a pointer to the position in the line where we will start
  2729  *          looking for the next word.
  2730  */
  2731 char *getaword(char *fromline,char *thisword)
  2732 {
  2733     int i,wordlen;
  2734     char *s;
  2735     wordlen=0;
  2736     for (;!gcisdigit(*fromline) && !gcisalpha(*fromline) && *fromline;
  2737       fromline++)
  2738 	;
  2739     /*
  2740      * Use a look-ahead to handle exceptions for numbers like 1,000 and 1.35.
  2741      * Especially yucky is the case of L1,000
  2742      * This section looks for a pattern of characters including a digit
  2743      * followed by a comma or period followed by one or more digits.
  2744      * If found, it returns this whole pattern as a word; otherwise we discard
  2745      * the results and resume our normal programming.
  2746      */
  2747     s=fromline;
  2748     for (;(gcisdigit(*s) || gcisalpha(*s) || *s==',' || *s=='.') &&
  2749       wordlen<MAXWORDLEN;s++)
  2750     {
  2751 	thisword[wordlen]=*s;
  2752         wordlen++;
  2753     }
  2754     thisword[wordlen]=0;
  2755     for (i=1;i<wordlen-1;i++)
  2756     {
  2757         if (thisword[i]=='.' || thisword[i]==',')
  2758 	{
  2759             if (gcisdigit(thisword[i-1]) && gcisdigit(thisword[i-1]))
  2760 	    {
  2761                 fromline=s;
  2762                 return fromline;
  2763 	    }
  2764 	}
  2765     }
  2766     /* we didn't find a punctuated number - do the regular getword thing */
  2767     wordlen=0;
  2768     for (;(gcisdigit(*fromline) || gcisalpha(*fromline) || *fromline=='\'') &&
  2769       wordlen<MAXWORDLEN;fromline++)
  2770     {
  2771         thisword[wordlen]=*fromline;
  2772         wordlen++;
  2773     }
  2774     thisword[wordlen]=0;
  2775     return fromline;
  2776 }
  2777 
  2778 /*
  2779  * matchword:
  2780  *
  2781  * A case-insensitive string matcher.
  2782  */
  2783 int matchword(char *checkfor,char *thisword)
  2784 {
  2785     unsigned int ismatch,i;
  2786     if (strlen(checkfor)!=strlen(thisword))
  2787 	return 0;
  2788     ismatch=1;     /* assume a match until we find a difference */
  2789     for (i=0;i<strlen(checkfor);i++)
  2790         if (toupper(checkfor[i])!=toupper(thisword[i]))
  2791             ismatch=0;
  2792     return ismatch;
  2793 }
  2794 
  2795 /*
  2796  * lowerit:
  2797  *
  2798  * Lowercase the line.
  2799  */
  2800 
  2801 void lowerit(char *theline)
  2802 {
  2803     for (;*theline;theline++)
  2804         if (*theline>='A' && *theline<='Z')
  2805             *theline+=32;
  2806 }
  2807 
  2808 /*
  2809  * isroman:
  2810  *
  2811  * Is this word a Roman Numeral?
  2812  *
  2813  * It doesn't actually validate that the number is a valid Roman Numeral--for
  2814  * example it will pass MXXXXXXXXXX as a valid Roman Numeral, but that's not
  2815  * what we're here to do. If it passes this, it LOOKS like a Roman numeral.
  2816  * Anyway, the actual Romans were pretty tolerant of bad arithmetic, or
  2817  * expressions thereof, except when it came to taxes. Allow any number of M,
  2818  * an optional D, an optional CM or CD, any number of optional Cs, an optional
  2819  * XL or an optional XC, an optional IX or IV, an optional V and any number
  2820  * of optional Is.
  2821  */
  2822 int isroman(char *t)
  2823 {
  2824     char *s;
  2825     if (!t || !*t)
  2826 	return 0;
  2827     s=t;
  2828     while (*t=='m' && *t)
  2829 	t++;
  2830     if (*t=='d')
  2831 	t++;
  2832     if (*t=='c' && t[1]=='m')
  2833 	t+=2;
  2834     if (*t=='c' && t[1]=='d')
  2835 	t+=2;
  2836     while (*t=='c' && *t)
  2837 	t++;
  2838     if (*t=='x' && t[1]=='l')
  2839 	t+=2;
  2840     if (*t=='x' && t[1]=='c')
  2841 	t+=2;
  2842     if (*t=='l')
  2843 	t++;
  2844     while (*t=='x' && *t)
  2845 	t++;
  2846     if (*t=='i' && t[1]=='x')
  2847 	t+=2;
  2848     if (*t=='i' && t[1]=='v')
  2849 	t+=2;
  2850     if (*t=='v')
  2851 	t++;
  2852     while (*t=='i' && *t)
  2853 	t++;
  2854     return !*t;
  2855 }
  2856 
  2857 /*
  2858  * gcisalpha:
  2859  *
  2860  * A version of isalpha() that is somewhat lenient on 8-bit texts.
  2861  * If we use the standard function, 8-bit accented characters break
  2862  * words, so that tete with accented characters appears to be two words, "t"
  2863  * and "t", with 8-bit characters between them. This causes over-reporting of
  2864  * errors. gcisalpha() recognizes accented letters from the CP1252 (Windows)
  2865  * and ISO-8859-1 character sets, which are the most common PG 8-bit types.
  2866  */
  2867 int gcisalpha(unsigned char c)
  2868 {
  2869     if (c>='a' && c<='z')
  2870 	return 1;
  2871     if (c>='A' && c<='Z')
  2872 	return 1;
  2873     if (c<140)
  2874 	return 0;
  2875     if (c>=192 && c!=208 && c!=215 && c!=222 && c!=240 && c!=247 && c!=254)
  2876 	return 1;
  2877     if (c==140 || c==142 || c==156 || c==158 || c==159)
  2878 	return 1;
  2879     return 0;
  2880 }
  2881 
  2882 /*
  2883  * gcisdigit:
  2884  *
  2885  * A version of isdigit() that doesn't get confused in 8-bit texts.
  2886  */
  2887 int gcisdigit(unsigned char c)
  2888 {   
  2889     return c>='0' && c<='9';
  2890 }
  2891 
  2892 /*
  2893  * gcisletter:
  2894  *
  2895  * A version of isletter() that doesn't get confused in 8-bit texts.
  2896  * NB: this is ISO-8891-1-specific.
  2897  */
  2898 int gcisletter(unsigned char c)
  2899 {   
  2900     return c>='A' && c<='Z' || c>='a' && c<='z' || c>=192;
  2901 }
  2902 
  2903 /*
  2904  * gcstrchr:
  2905  *
  2906  * Wraps strchr to return NULL if the character being searched for is zero.
  2907  */
  2908 char *gcstrchr(char *s,char c)
  2909 {
  2910     if (!c)
  2911 	return NULL;
  2912     return strchr(s,c);
  2913 }
  2914 
  2915 /*
  2916  * postprocess_for_DP:
  2917  *
  2918  * Invoked with the -d switch from flgets().
  2919  * It simply "removes" from the line a hard-coded set of common
  2920  * DP-specific tags, so that the line passed to the main routine has
  2921  * been pre-cleaned of DP markup.
  2922  */
  2923 void postprocess_for_DP(char *theline)
  2924 {
  2925     char *s,*t;
  2926     int i;
  2927     if (!*theline) 
  2928         return;
  2929     for (i=0;*DPmarkup[i];i++)
  2930     {
  2931         s=strstr(theline,DPmarkup[i]);
  2932         while (s)
  2933 	{
  2934             t=s+strlen(DPmarkup[i]);
  2935             while (*t)
  2936 	    {
  2937                 *s=*t;
  2938                 t++;
  2939 		s++;
  2940 	    }
  2941             *s=0;
  2942             s=strstr(theline,DPmarkup[i]);
  2943 	}
  2944     }
  2945 }
  2946 
  2947 /*
  2948  * postprocess_for_HTML:
  2949  *
  2950  * Invoked with the -m switch from flgets().
  2951  * It simply "removes" from the line a hard-coded set of common
  2952  * HTML tags and "replaces" a hard-coded set of common HTML
  2953  * entities, so that the line passed to the main routine has
  2954  * been pre-cleaned of HTML.
  2955  */
  2956 void postprocess_for_HTML(char *theline)
  2957 {
  2958     if (strstr(theline,"<") && strstr(theline,">"))
  2959         while (losemarkup(theline))
  2960             ;
  2961     while (loseentities(theline))
  2962         ;
  2963 }
  2964 
  2965 char *losemarkup(char *theline)
  2966 {
  2967     char *s,*t;
  2968     int i;
  2969     if (!*theline) 
  2970         return NULL;
  2971     s=strstr(theline,"<");
  2972     t=strstr(theline,">");
  2973     if (!s || !t)
  2974 	return NULL;
  2975     for (i=0;*markup[i];i++)
  2976         if (!tagcomp(s+1,markup[i]))
  2977 	{
  2978             if (!t[1])
  2979 	    {
  2980                 *s=0;
  2981                 return s;
  2982 	    }
  2983             else if (t>s)
  2984 	    {
  2985 		strcpy(s,t+1);
  2986 		return s;
  2987 	    }
  2988         }
  2989     /* It's an unrecognized <xxx>. */
  2990     return NULL;
  2991 }
  2992 
  2993 char *loseentities(char *theline)
  2994 {
  2995     int i;
  2996     char *s,*t;
  2997     if (!*theline) 
  2998         return NULL;
  2999     for (i=0;*entities[i].htmlent;i++)
  3000     {
  3001         s=strstr(theline,entities[i].htmlent);
  3002         if (s)
  3003 	{
  3004             t=malloc((size_t)strlen(s));
  3005             if (!t)
  3006 		return NULL;
  3007             strcpy(t,s+strlen(entities[i].htmlent));
  3008             strcpy(s,entities[i].textent);
  3009             strcat(s,t);
  3010             free(t);
  3011             return theline;
  3012 	}
  3013     }
  3014     for (i=0;*entities[i].htmlnum;i++)
  3015     {
  3016         s=strstr(theline,entities[i].htmlnum);
  3017         if (s)
  3018 	{
  3019             t=malloc((size_t)strlen(s));
  3020             if (!t)
  3021 		return NULL;
  3022             strcpy(t,s+strlen(entities[i].htmlnum));
  3023             strcpy(s,entities[i].textent);
  3024             strcat(s,t);
  3025             free(t);
  3026             return theline;
  3027 	}
  3028     }
  3029     return NULL;
  3030 }
  3031 
  3032 int tagcomp(char *strin,char *basetag)
  3033 {
  3034     char *s,*t;
  3035     s=basetag;
  3036     t=strin;
  3037     if (*t=='/')
  3038 	t++; /* ignore a slash */
  3039     while (*s && *t)
  3040     {
  3041         if (tolower(*s)!=tolower(*t))
  3042 	    return 1;
  3043         s++;
  3044 	t++;
  3045     }
  3046     return 0;
  3047 }
  3048 
  3049 void proghelp()
  3050 {
  3051     fputs("Bookloupe version " PACKAGE_VERSION ".\n",stderr);
  3052     fputs("Copyright 2000-2005 Jim Tinsley <jtinsley@pobox.com>.\n",stderr);
  3053     fputs("Copyright 2012- J. Ali Harlow <ali@juiblex.co.uk>.\n",stderr);
  3054     fputs("Bookloupe comes wih ABSOLUTELY NO WARRANTY. "
  3055       "For details, read the file COPYING.\n",stderr);
  3056     fputs("This is Free Software; "
  3057       "you may redistribute it under certain conditions (GPL);\n",stderr);
  3058     fputs("read the file COPYING for details.\n\n",stderr);
  3059     fputs("Usage is: bookloupe [-setpxloyhud] filename\n",stderr);
  3060     fputs("  where -s checks single quotes, -e suppresses echoing lines, "
  3061       "-t checks typos\n",stderr);
  3062     fputs("  -x (paranoid) switches OFF -t and extra checks, "
  3063       "-l turns OFF line-end checks\n",stderr);
  3064     fputs("  -o just displays overview without detail, "
  3065       "-h echoes header fields\n",stderr);
  3066     fputs("  -v (verbose) unsuppresses duplicate reporting, "
  3067       "-m suppresses markup\n",stderr);
  3068     fputs("  -d ignores DP-specific markup,\n",stderr);
  3069     fputs("  -u uses a file gutcheck.typ to query user-defined "
  3070       "possible typos\n",stderr);
  3071     fputs("Sample usage: bookloupe warpeace.txt \n",stderr);
  3072     fputs("\n",stderr);
  3073     fputs("Bookloupe looks for errors in Project Gutenberg(TM) etexts.\n",
  3074       stderr);
  3075     fputs("Bookloupe queries anything it thinks shouldn't be in a PG text; "
  3076       "non-ASCII\n",stderr);
  3077     fputs("characters like accented letters, "
  3078       "lines longer than 75 or shorter than 55,\n",stderr);
  3079     fputs("unbalanced quotes or brackets, "
  3080       "a variety of badly formatted punctuation, \n",stderr);
  3081     fputs("HTML tags, some likely typos. "
  3082       "It is NOT a substitute for human judgement.\n",stderr);
  3083     fputs("\n",stderr);
  3084 }