bookloupe/bookloupe.c
author ali <ali@juiblex.co.uk>
Sat May 25 20:47:50 2013 +0100 (2013-05-25)
changeset 49 8a53979c0d65
parent 48 274aa1e09099
child 50 1b646720d4a7
permissions -rw-r--r--
Break check_for_jeebies() 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  * procfile:
  1350  *
  1351  * Process one file.
  1352  */
  1353 void procfile(char *filename)
  1354 {
  1355     char *s,*t,*s1,*wordstart;
  1356     char inword[MAXWORDLEN],testword[MAXWORDLEN];
  1357     char parastart[81];     /* first line of current para */
  1358     FILE *infile;
  1359     struct first_pass_results *first_pass_results;
  1360     struct warnings *warnings;
  1361     struct counters counters={0};
  1362     struct line_properties last={0};
  1363     int isemptyline;
  1364     long squot,start_para_line;
  1365     signed int i,j,llen,isacro,isellipsis,istypo,alower;
  1366     signed int dquotepar,squotepar;
  1367     signed int isnewpara,vowel,consonant;
  1368     char dquote_err[80],squote_err[80],rbrack_err[80],sbrack_err[80],
  1369       cbrack_err[80],unders_err[80];
  1370     signed int qword_index,qperiod_index,isdup;
  1371     signed int enddash;
  1372     last.start=CHAR_SPACE;
  1373     *dquote_err=*squote_err=*rbrack_err=*cbrack_err=*sbrack_err=
  1374       *unders_err=*prevline=0;
  1375     linecnt=checked_linecnt=start_para_line=0;
  1376     squot=0;
  1377     i=llen=isacro=isellipsis=istypo=0;
  1378     isnewpara=vowel=consonant=enddash=0;
  1379     qword_index=qperiod_index=isdup=0;
  1380     *inword=*testword=0;
  1381     dquotepar=squotepar=0;
  1382     for (j=0;j<MAX_QWORD;j++)
  1383     {
  1384         dupcnt[j]=0;
  1385         for (i=0;i<MAX_QWORD_LENGTH;i++)
  1386 	{
  1387             qword[i][j]=0;
  1388             qperiod[i][j]=0;
  1389 	}
  1390     }
  1391     infile=fopen(filename,"rb");
  1392     if (!infile)
  1393     {
  1394         if (pswit[STDOUT_SWITCH])
  1395             fprintf(stdout,"bookloupe: cannot open %s\n",filename);
  1396         else
  1397             fprintf(stderr,"bookloupe: cannot open %s\n",filename);
  1398 	exit(1);
  1399     }
  1400     fprintf(stdout,"\n\nFile: %s\n\n",filename);
  1401     first_pass_results=first_pass(infile);
  1402     warnings=report_first_pass(first_pass_results);
  1403     rewind(infile);
  1404     /*
  1405      * Here we go with the main pass. Hold onto yer hat!
  1406      * Re-init some variables we've dirtied.
  1407      */
  1408     squot=linecnt=0;
  1409     while (flgets(aline,LINEBUFSIZE-1,infile,linecnt+1))
  1410     {
  1411         linecnt++;
  1412         if (linecnt==1)
  1413 	    isnewpara=1;
  1414         if (pswit[DP_SWITCH] && !strncmp(aline,"-----File: ",11))
  1415 	    continue;    // skip DP page separators completely
  1416         if (linecnt<first_pass_results->firstline ||
  1417 	  (first_pass_results->footerline>0 &&
  1418 	  linecnt>first_pass_results->footerline))
  1419 	{
  1420             if (pswit[HEADER_SWITCH])
  1421 	    {
  1422                 if (!strncmp(aline,"Title:",6))
  1423                     printf("    %s\n",aline);
  1424                 if (!strncmp(aline,"Author:",7))
  1425                     printf("    %s\n",aline);
  1426                 if (!strncmp(aline,"Release Date:",13))
  1427                     printf("    %s\n",aline);
  1428                 if (!strncmp(aline,"Edition:",8))
  1429                     printf("    %s\n\n",aline);
  1430 	    }
  1431             continue;                /* skip through the header */
  1432 	}
  1433         checked_linecnt++;
  1434         s=aline;
  1435         /*
  1436 	 * If we are in a state of unbalanced quotes, and this line
  1437          * doesn't begin with a quote, output the stored error message.
  1438          * If the -P switch was used, print the warning even if the
  1439          * new para starts with quotes.
  1440 	 */
  1441         t=s;
  1442         while (*t==' ')
  1443 	    t++;
  1444         if (*dquote_err)
  1445             if (*t!=CHAR_DQUOTE || pswit[QPARA_SWITCH])
  1446 	    {
  1447                 if (!pswit[OVERVIEW_SWITCH])
  1448 		{
  1449                     if (pswit[ECHO_SWITCH])
  1450 			printf("\n%s\n",parastart);
  1451                     printf(dquote_err);
  1452 		}
  1453                 else
  1454                     cnt_dquot++;
  1455             }
  1456         if (*squote_err)
  1457 	{
  1458             if (*t!=CHAR_SQUOTE && *t!=CHAR_OPEN_SQUOTE ||
  1459 	      pswit[QPARA_SWITCH] || squot)
  1460 	    {
  1461                 if (!pswit[OVERVIEW_SWITCH])
  1462 		{
  1463                     if (pswit[ECHO_SWITCH])
  1464 			printf("\n%s\n",parastart);
  1465                     printf(squote_err);
  1466 		}
  1467                 else
  1468                     cnt_squot++;
  1469 	    }
  1470             squot=0;
  1471 	}
  1472         if (*rbrack_err)
  1473 	{
  1474             if (!pswit[OVERVIEW_SWITCH])
  1475 	    {
  1476                 if (pswit[ECHO_SWITCH])
  1477 		    printf("\n%s\n",parastart);
  1478                 printf(rbrack_err);
  1479 	    }
  1480             else
  1481                 cnt_brack++;
  1482 	}
  1483         if (*sbrack_err)
  1484 	{
  1485             if (!pswit[OVERVIEW_SWITCH])
  1486 	    {
  1487                 if (pswit[ECHO_SWITCH])
  1488 		    printf("\n%s\n",parastart);
  1489                 printf(sbrack_err);
  1490 	    }
  1491             else
  1492                 cnt_brack++;
  1493 	}
  1494         if (*cbrack_err)
  1495 	{
  1496             if (!pswit[OVERVIEW_SWITCH])
  1497 	    {
  1498                 if (pswit[ECHO_SWITCH])
  1499 		    printf("\n%s\n",parastart);
  1500                 printf(cbrack_err);
  1501 	    }
  1502             else
  1503                 cnt_brack++;
  1504 	}
  1505         if (*unders_err)
  1506 	{
  1507             if (!pswit[OVERVIEW_SWITCH])
  1508 	    {
  1509                 if (pswit[ECHO_SWITCH])
  1510 		    printf("\n%s\n",parastart);
  1511                 printf(unders_err);
  1512 	    }
  1513             else
  1514                 cnt_brack++;
  1515 	}
  1516         *dquote_err=*squote_err=*rbrack_err=*cbrack_err= 
  1517 	  *sbrack_err=*unders_err=0;
  1518 	isemptyline=analyse_quotes(aline,&counters);
  1519         if (isnewpara && !isemptyline)
  1520 	{
  1521 	    /* This line is the start of a new paragraph. */
  1522             start_para_line=linecnt;
  1523 	    /* Capture its first line in case we want to report it later. */
  1524             strncpy(parastart,aline,80);
  1525             parastart[79]=0;
  1526             dquotepar=squotepar=0; /* restart the quote count */
  1527             s=aline;
  1528             while (!gcisalpha(*s) && !gcisdigit(*s) && *s)
  1529 		s++;
  1530             if (*s>='a' && *s<='z')
  1531 	    {
  1532 		/* and its first letter is lowercase */
  1533                 if (pswit[ECHO_SWITCH])
  1534 		    printf("\n%s\n",aline);
  1535                 if (!pswit[OVERVIEW_SWITCH])
  1536                     printf("    Line %ld column %d - "
  1537 		      "Paragraph starts with lower-case\n",
  1538 		      linecnt,(int)(s-aline)+1);
  1539                 else
  1540                     cnt_punct++;
  1541 	    }
  1542             isnewpara=0; /* Signal the end of new para processing. */
  1543 	}
  1544         /* Check for an em-dash broken at line end. */
  1545         if (enddash && *aline=='-')
  1546 	{
  1547             if (pswit[ECHO_SWITCH])
  1548 		printf("\n%s\n",aline);
  1549             if (!pswit[OVERVIEW_SWITCH])
  1550                 printf("    Line %ld column 1 - Broken em-dash?\n",linecnt);
  1551             else
  1552                 cnt_punct++;
  1553 	}
  1554         enddash=0;
  1555         for (s=aline+strlen(aline)-1;*s==' ' && s>aline;s--)
  1556 	    ;
  1557         if (s>=aline && *s=='-')
  1558             enddash=1;
  1559 	/*
  1560          * Check for invalid or questionable characters in the line
  1561          * Anything above 127 is invalid for plain ASCII, and
  1562          * non-printable control characters should also be flagged.
  1563          * Tabs should generally not be there.
  1564 	 */
  1565         for (s=aline;*s;s++)
  1566 	{
  1567             i=(unsigned char)*s;
  1568             if (i<CHAR_SPACE && i!=CHAR_LF && i!=CHAR_CR && i!=CHAR_TAB)
  1569 	    {
  1570                 if (pswit[ECHO_SWITCH])
  1571 		    printf("\n%s\n",aline);
  1572                 if (!pswit[OVERVIEW_SWITCH])
  1573                     printf("    Line %ld column %d - Control character %d\n",
  1574 		      linecnt,(int)(s-aline)+1,i);
  1575                 else
  1576                     cnt_bin++;
  1577 	    }
  1578 	}
  1579         if (warnings->bin)
  1580 	    check_for_odd_characters(aline,warnings,isemptyline);
  1581         if (warnings->longline)
  1582 	    check_for_long_line(aline);
  1583         if (warnings->shortline)
  1584 	    check_for_short_line(aline,&last);
  1585         last.blen=last.len;
  1586         last.len=strlen(aline);
  1587         last.start=aline[0];
  1588 	check_for_starting_punctuation(aline);
  1589         if (warnings->dash)
  1590 	{
  1591 	    check_for_spaced_emdash(aline);
  1592 	    check_for_spaced_dash(aline);
  1593 	}
  1594 	check_for_unmarked_paragraphs(aline);
  1595 	check_for_jeebies(aline);
  1596         /*
  1597 	 * Special case - angled bracket in front of "From" placed there by an
  1598 	 * MTA when sending an e-mail.
  1599 	 */
  1600         if (strstr(aline,">From"))
  1601 	{
  1602             if (pswit[ECHO_SWITCH])
  1603 		printf("\n%s\n",aline);
  1604             if (!pswit[OVERVIEW_SWITCH])
  1605                 printf("    Line %ld column %d - "
  1606 		  "Query angled bracket with From\n",
  1607 		  linecnt,(int)(strstr(aline,">From")-aline)+1);
  1608             else
  1609                 cnt_punct++;
  1610 	}
  1611         /*
  1612 	 * Check for a single character line -
  1613 	 * often an overflow from bad wrapping.
  1614 	 */
  1615         if (*aline && !aline[1])
  1616 	{
  1617             if (*aline=='I' || *aline=='V' || *aline=='X' || *aline=='L' ||
  1618 	      gcisdigit(*aline))
  1619                 ; /* Nothing - ignore numerals alone on a line. */
  1620             else
  1621 	    {
  1622                 if (pswit[ECHO_SWITCH])
  1623 		    printf("\n%s\n",aline);
  1624                 if (!pswit[OVERVIEW_SWITCH])
  1625                     printf("    Line %ld column 1 - "
  1626 		      "Query single character line\n",linecnt);
  1627                 else
  1628                     cnt_punct++;
  1629 	    }
  1630 	}
  1631         /* Check for I" - often should be ! */
  1632         if (strstr(aline," I\""))
  1633 	{
  1634             if (pswit[ECHO_SWITCH])
  1635 		printf("\n%s\n",aline);
  1636             if (!pswit[OVERVIEW_SWITCH])
  1637                 printf("    Line %ld column %ld - Query I=exclamation mark?\n",
  1638 		  linecnt,strstr(aline," I\"")-aline);
  1639             else
  1640                 cnt_punct++;
  1641 	}
  1642         /*
  1643 	 * Check for period without a capital letter. Cut-down from gutspell.
  1644          * Only works when it happens on a single line.
  1645 	 */
  1646         if (pswit[PARANOID_SWITCH])
  1647 	{
  1648             for (t=s=aline;strstr(t,". ");)
  1649 	    {
  1650                 t=strstr(t,". ");
  1651                 if (t==s)
  1652 		{
  1653                     t++;
  1654 		    /* start of line punctuation is handled elsewhere */
  1655                     continue;
  1656 		}
  1657                 if (!gcisalpha(t[-1]))
  1658 		{
  1659                     t++;
  1660                     continue;
  1661 		}
  1662                 if (warnings->isDutch)
  1663 		{
  1664 		    /* For Frank & Jeroen -- 's Middags case */
  1665                     if (t[2]==CHAR_SQUOTE && t[3]>='a' && t[3]<='z' &&
  1666 		      t[4]==CHAR_SPACE && t[5]>='A' && t[5]<='Z')
  1667 		    {
  1668                         t++;
  1669                         continue;
  1670 		    }
  1671 		}
  1672                 s1=t+2;
  1673                 while (*s1 && !gcisalpha(*s1) && !isdigit(*s1))
  1674                     s1++;
  1675                 if (*s1>='a' && *s1<='z')
  1676 		{
  1677 		    /* we have something to investigate */
  1678                     istypo=1;
  1679 		    /* so let's go back and find out */
  1680                     for (s1=t-1;s1>=s &&
  1681 		      (gcisalpha(*s1) || gcisdigit(*s1) || *s1==CHAR_SQUOTE &&
  1682 		      gcisalpha(s1[1]) && gcisalpha(s1[-1]));s1--)
  1683 			;
  1684                     s1++;
  1685                     for (i=0;*s1 && *s1!='.';s1++,i++)
  1686                         testword[i]=*s1;
  1687                     testword[i]=0;
  1688                     for (i=0;*abbrev[i];i++)
  1689                         if (!strcmp(testword,abbrev[i]))
  1690                             istypo=0;
  1691                     if (gcisdigit(*testword))
  1692 			istypo=0;
  1693                     if (!testword[1])
  1694 			istypo=0;
  1695                     if (isroman(testword))
  1696 			istypo=0;
  1697                     if (istypo)
  1698 		    {
  1699                         istypo=0;
  1700                         for (i=0;testword[i];i++)
  1701                             if (strchr(vowels,testword[i]))
  1702                                 istypo=1;
  1703 		    }
  1704                     if (istypo)
  1705 		    {
  1706                         isdup=0;
  1707                         if (strlen(testword)<MAX_QWORD_LENGTH &&
  1708 			  !pswit[VERBOSE_SWITCH])
  1709                             for (i=0;i<qperiod_index;i++)
  1710                                 if (!strcmp(testword,qperiod[i]))
  1711                                     isdup=1;
  1712                         if (!isdup)
  1713 			{
  1714                             if (qperiod_index<MAX_QWORD &&
  1715 			      strlen(testword)<MAX_QWORD_LENGTH)
  1716 			    {
  1717                                 strcpy(qperiod[qperiod_index],testword);
  1718                                 qperiod_index++;
  1719 			    }
  1720                             if (pswit[ECHO_SWITCH])
  1721 				printf("\n%s\n",aline);
  1722                             if (!pswit[OVERVIEW_SWITCH])
  1723                                 printf("    Line %ld column %d - "
  1724 				  "Extra period?\n",linecnt,(int)(t-aline)+1);
  1725                             else
  1726                                 cnt_punct++;
  1727 			}
  1728 		    }
  1729 		}
  1730 	    t++;
  1731 	    }
  1732 	}
  1733         if (pswit[TYPO_SWITCH])
  1734 	{
  1735             /* Check for words usually not followed by punctuation. */
  1736             for (s=aline;*s;)
  1737 	    {
  1738                 wordstart=s;
  1739                 s=getaword(s,inword);
  1740                 if (!*inword)
  1741 		    continue;
  1742                 lowerit(inword);
  1743                 for (i=0;*nocomma[i];i++)
  1744                     if (!strcmp(inword,nocomma[i]))
  1745 		    {
  1746                         if (*s==',' || *s==';' || *s==':')
  1747 			{
  1748                             if (pswit[ECHO_SWITCH])
  1749 				printf("\n%s\n",aline);
  1750                             if (!pswit[OVERVIEW_SWITCH])
  1751                                 printf("    Line %ld column %d - "
  1752 				  "Query punctuation after %s?\n",
  1753 				  linecnt,(int)(s-aline)+1,inword);
  1754                             else
  1755                                 cnt_punct++;
  1756 			}
  1757 		    }
  1758 		for (i=0;*noperiod[i];i++)
  1759                     if (!strcmp(inword,noperiod[i]))
  1760 		    {
  1761                         if (*s=='.' || *s=='!')
  1762 			{
  1763                             if (pswit[ECHO_SWITCH])
  1764 				printf("\n%s\n",aline);
  1765                             if (!pswit[OVERVIEW_SWITCH])
  1766                                 printf("    Line %ld column %d - "
  1767 				  "Query punctuation after %s?\n",
  1768 				  linecnt,(int)(s-aline)+1,inword);
  1769                             else
  1770                                 cnt_punct++;
  1771 			}
  1772 		    }
  1773 	    }
  1774 	}
  1775         /*
  1776 	 * Check for commonly mistyped words,
  1777 	 * and digits like 0 for O in a word.
  1778 	 */
  1779         for (s=aline;*s;)
  1780 	{
  1781             wordstart=s;
  1782             s=getaword(s,inword);
  1783             if (!*inword)
  1784 		continue; /* don't bother with empty lines */
  1785             if (mixdigit(inword))
  1786 	    {
  1787                 if (pswit[ECHO_SWITCH])
  1788 		    printf("\n%s\n",aline);
  1789                 if (!pswit[OVERVIEW_SWITCH])
  1790                     printf("    Line %ld column %d - Query digit in %s\n",
  1791 		      linecnt,(int)(wordstart-aline)+1,inword);
  1792                 else
  1793                     cnt_word++;
  1794 	    }
  1795             /*
  1796 	     * Put the word through a series of tests for likely typos and OCR
  1797 	     * errors.
  1798 	     */
  1799             if (pswit[TYPO_SWITCH])
  1800 	    {
  1801                 istypo=0;
  1802                 strcpy(testword,inword);
  1803                 alower=0;
  1804                 for (i=0;i<(signed int)strlen(testword);i++)
  1805 		{
  1806 		    /* lowercase for testing */
  1807                     if (testword[i]>='a' && testword[i]<='z')
  1808 			alower=1;
  1809                     if (alower && testword[i]>='A' && testword[i]<='Z')
  1810 		    {
  1811                         /*
  1812 			 * We have an uppercase mid-word. However, there are
  1813 			 * common cases:
  1814                          *   Mac and Mc like McGill
  1815                          *   French contractions like l'Abbe
  1816 			 */
  1817                         if (i==2 && testword[0]=='m' && testword[1]=='c' ||
  1818                           i==3 && testword[0]=='m' && testword[1]=='a' &&
  1819 			  testword[2]=='c' || i>0 && testword[i-1]==CHAR_SQUOTE)
  1820 			    ; /* do nothing! */
  1821                         else
  1822                             istypo=1;
  1823 		    }
  1824                     testword[i]=(char)tolower(testword[i]);
  1825 		}
  1826                 /*
  1827 		 * Check for certain unlikely two-letter combinations at word
  1828 		 * start and end.
  1829 		 */
  1830                 if (strlen(testword)>1)
  1831 		{
  1832                     for (i=0;*nostart[i];i++)
  1833                         if (!strncmp(testword,nostart[i],2))
  1834                             istypo=1;
  1835                     for (i=0;*noend[i];i++)
  1836                         if (!strncmp(testword+strlen(testword)-2,noend[i],2))
  1837                             istypo=1;
  1838 		}
  1839                 /* ght is common, gbt never. Like that. */
  1840                 if (strstr(testword,"cb"))
  1841 		    istypo=1;
  1842                 if (strstr(testword,"gbt"))
  1843 		    istypo=1;
  1844                 if (strstr(testword,"pbt"))
  1845 		    istypo=1;
  1846                 if (strstr(testword,"tbs"))
  1847 		    istypo=1;
  1848                 if (strstr(testword,"mrn"))
  1849 		    istypo=1;
  1850                 if (strstr(testword,"ahle"))
  1851 		    istypo=1;
  1852                 if (strstr(testword,"ihle"))
  1853 		    istypo=1;
  1854                 /*
  1855 		 * "TBE" does happen - like HEARTBEAT - but uncommon.
  1856                  * Also "TBI" - frostbite, outbid - but uncommon.
  1857                  * Similarly "ii" like Hawaii, or Pompeii, and in Roman
  1858 		 * numerals, but "ii" is a common scanno.
  1859 		 */
  1860                 if (strstr(testword,"tbi"))
  1861 		    istypo=1;
  1862                 if (strstr(testword,"tbe"))
  1863 		    istypo=1;
  1864                 if (strstr(testword,"ii"))
  1865 		    istypo=1;
  1866                 /*
  1867 		 * Check for no vowels or no consonants.
  1868                  * If none, flag a typo.
  1869 		 */
  1870                 if (!istypo && strlen(testword)>1)
  1871 		{
  1872                     vowel=consonant=0;
  1873                     for (i=0;testword[i];i++)
  1874 		    {
  1875                         if (testword[i]=='y' || gcisdigit(testword[i]))
  1876 			{
  1877 			    /* Yah, this is loose. */
  1878                             vowel++;
  1879                             consonant++;
  1880 			}
  1881                         else if (strchr(vowels,testword[i]))
  1882 			    vowel++;
  1883 			else
  1884 			    consonant++;
  1885 		    }
  1886                     if (!vowel || !consonant)
  1887                         istypo=1;
  1888 		}
  1889                 /*
  1890 		 * Now exclude the word from being reported if it's in
  1891                  * the okword list.
  1892 		 */
  1893                 for (i=0;*okword[i];i++)
  1894                     if (!strcmp(testword,okword[i]))
  1895                         istypo=0;
  1896                 /*
  1897 		 * What looks like a typo may be a Roman numeral.
  1898 		 * Exclude these.
  1899 		 */
  1900                 if (istypo && isroman(testword))
  1901 		    istypo=0;
  1902                 /* Check the manual list of typos. */
  1903                 if (!istypo)
  1904                     for (i=0;*typo[i];i++)
  1905                         if (!strcmp(testword,typo[i]))
  1906                             istypo=1;
  1907                 /*
  1908 		 * Check lowercase s, l, i and m - special cases.
  1909                  *   "j" - often a semi-colon gone wrong.
  1910                  *   "d" for a missing apostrophe - he d
  1911                  *   "n" for "in"
  1912 		 */
  1913                 if (!istypo && strlen(testword)==1 && strchr("slmijdn",*inword))
  1914 		    istypo=1;
  1915                 if (istypo)
  1916 		{
  1917                     isdup=0;
  1918                     if (strlen(testword)<MAX_QWORD_LENGTH &&
  1919 		      !pswit[VERBOSE_SWITCH])
  1920                         for (i=0;i<qword_index;i++)
  1921                             if (!strcmp(testword,qword[i]))
  1922 			    {
  1923                                 isdup=1;
  1924                                 ++dupcnt[i];
  1925 			    }
  1926                     if (!isdup)
  1927 		    {
  1928                         if (qword_index<MAX_QWORD &&
  1929 			  strlen(testword)<MAX_QWORD_LENGTH)
  1930 			{
  1931                             strcpy(qword[qword_index],testword);
  1932                             qword_index++;
  1933 			}
  1934                         if (pswit[ECHO_SWITCH])
  1935 			    printf("\n%s\n",aline);
  1936                         if (!pswit[OVERVIEW_SWITCH])
  1937 			{
  1938                             printf("    Line %ld column %d - Query word %s",
  1939 			      linecnt,(int)(wordstart-aline)+1,inword);
  1940                             if (strlen(testword)<MAX_QWORD_LENGTH &&
  1941 			      !pswit[VERBOSE_SWITCH])
  1942                                 printf(" - not reporting duplicates");
  1943                             printf("\n");
  1944 			}
  1945                         else
  1946                             cnt_word++;
  1947 		    }
  1948 		}
  1949 	    }
  1950 	    /* check the user's list of typos */
  1951 	    if (!istypo && usertypo_count)
  1952 		for (i=0;i<usertypo_count;i++)
  1953 		    if (!strcmp(testword,usertypo[i]))
  1954 		    {
  1955 			if (pswit[ECHO_SWITCH])
  1956 			    printf("\n%s\n",aline);
  1957 			if (!pswit[OVERVIEW_SWITCH])  
  1958 			    printf("    Line %ld column %d - "
  1959 			      "Query possible scanno %s\n",
  1960 			      linecnt,(int)(wordstart-aline)+2,inword);
  1961 		    }
  1962             if (pswit[PARANOID_SWITCH] && warnings->digit)
  1963 	    {
  1964 		/* In paranoid mode, query all 0 and 1 standing alone. */
  1965                 if (!strcmp(inword,"0") || !strcmp(inword,"1"))
  1966 		{
  1967                     if (pswit[ECHO_SWITCH])
  1968 			printf("\n%s\n",aline);
  1969                     if (!pswit[OVERVIEW_SWITCH])
  1970                         printf("    Line %ld column %d - Query standalone %s\n",
  1971 			  linecnt,(int)(wordstart-aline)+2,inword);
  1972                     else
  1973                         cnt_word++;
  1974 		}
  1975 	    }
  1976 	}
  1977 	/*
  1978          * Look for added or missing spaces around punctuation and quotes.
  1979          * If there is a punctuation character like ! with no space on
  1980          * either side, suspect a missing!space. If there are spaces on
  1981          * both sides , assume a typo. If we see a double quote with no
  1982          * space or punctuation on either side of it, assume unspaced
  1983          * quotes "like"this.
  1984 	 */
  1985         llen=strlen(aline);
  1986         for (i=1;i<llen;i++)
  1987 	{
  1988 	    /* For each character in the line after the first. */
  1989             if (strchr(".?!,;:_",aline[i]))  /* if it's punctuation */
  1990 	    {
  1991 		/* we need to suppress warnings for acronyms like M.D. */
  1992                 isacro=0;
  1993 		/* we need to suppress warnings for ellipsis . . . */
  1994                 isellipsis=0;
  1995 		/* if there are letters on both sides of it or ... */
  1996                 if (gcisalpha(aline[i-1]) && gcisalpha(aline[i+1]) ||
  1997                    gcisalpha(aline[i+1]) && strchr("?!,;:",aline[i]))
  1998 		{
  1999 		    /* ...if it's strict punctuation followed by an alpha */
  2000                     if (aline[i]=='.')
  2001 		    {
  2002                         if (i>2 && aline[i-2]=='.')
  2003 			    isacro=1;
  2004                         if (i+2<llen && aline[i+2]=='.')
  2005 			    isacro=1;
  2006 		    }
  2007                     if (!isacro)
  2008 		    {
  2009                         if (pswit[ECHO_SWITCH])
  2010 			    printf("\n%s\n",aline);
  2011                         if (!pswit[OVERVIEW_SWITCH])
  2012                             printf("    Line %ld column %d - Missing space?\n",
  2013 			      linecnt,i+1);
  2014                         else
  2015                             cnt_punct++;
  2016 		    }
  2017 		}
  2018                 if (aline[i-1]==CHAR_SPACE &&
  2019 		  (aline[i+1]==CHAR_SPACE || aline[i+1]==0))
  2020 		{
  2021 		    /*
  2022 		     * If there are spaces on both sides,
  2023 		     * or space before and end of line.
  2024 		     */
  2025                     if (aline[i]=='.')
  2026 		    {
  2027                         if (i>2 && aline[i-2]=='.')
  2028 			    isellipsis=1;
  2029                         if (i+2<llen && aline[i+2]=='.')
  2030 			    isellipsis=1;
  2031 		    }
  2032                     if (!isemptyline && !isellipsis)
  2033 		    {
  2034                         if (pswit[ECHO_SWITCH])
  2035 			    printf("\n%s\n",aline);
  2036                         if (!pswit[OVERVIEW_SWITCH])
  2037                             printf("    Line %ld column %d - "
  2038 			      "Spaced punctuation?\n",linecnt,i+1);
  2039                         else
  2040                             cnt_punct++;
  2041 		    }
  2042 		}
  2043 	    }
  2044 	}
  2045         /* Split out the characters that CANNOT be preceded by space. */
  2046         llen=strlen(aline);
  2047         for (i=1;i<llen;i++)
  2048 	{
  2049 	    /* for each character in the line after the first */
  2050             if (strchr("?!,;:",aline[i]))
  2051 	    {
  2052 		/* if it's punctuation that _cannot_ have a space before it */
  2053                 if (aline[i-1]==CHAR_SPACE && !isemptyline &&
  2054 		  aline[i+1]!=CHAR_SPACE)
  2055 		{
  2056 		    /*
  2057 		     * If aline[i+1) DOES == space,
  2058 		     * it was already reported just above.
  2059 		     */
  2060                     if (pswit[ECHO_SWITCH])
  2061 			printf("\n%s\n",aline);
  2062                     if (!pswit[OVERVIEW_SWITCH])
  2063                         printf("    Line %ld column %d - Spaced punctuation?\n",
  2064 			  linecnt,i+1);
  2065                     else
  2066                         cnt_punct++;
  2067 		}
  2068 	    }
  2069 	}
  2070         /*
  2071 	 * Special case " .X" where X is any alpha.
  2072          * This plugs a hole in the acronym code above.
  2073 	 * Inelegant, but maintainable.
  2074 	 */
  2075         llen=strlen(aline);
  2076         for (i=1;i<llen;i++)
  2077 	{
  2078 	    /* for each character in the line after the first */
  2079             if (aline[i]=='.')
  2080 	    {
  2081 		/* if it's a period */
  2082                 if (aline[i-1]==CHAR_SPACE && gcisalpha(aline[i+1]))
  2083 		{
  2084 		    /*
  2085 		     * If the period follows a space and
  2086 		     * is followed by a letter.
  2087 		     */
  2088                     if (pswit[ECHO_SWITCH])
  2089 			printf("\n%s\n",aline);
  2090                     if (!pswit[OVERVIEW_SWITCH])
  2091                         printf("    Line %ld column %d - Spaced punctuation?\n",
  2092 			  linecnt,i+1);
  2093                     else
  2094                         cnt_punct++;
  2095 		}
  2096 	    }
  2097 	}
  2098         for (i=1;i<llen;i++)
  2099 	{
  2100 	    /* for each character in the line after the first */
  2101             if (aline[i]==CHAR_DQUOTE)
  2102 	    {
  2103                 if (!strchr(" _-.'`,;:!/([{?}])",aline[i-1]) &&
  2104 		  !strchr(" _-.'`,;:!/([{?}])",aline[i+1]) && aline[i+1] ||
  2105 		  !strchr(" _-([{'`",aline[i-1]) && gcisalpha(aline[i+1]))
  2106 		{
  2107 		    if (pswit[ECHO_SWITCH])
  2108 			printf("\n%s\n",aline);
  2109 		    if (!pswit[OVERVIEW_SWITCH])
  2110 			printf("    Line %ld column %d - Unspaced quotes?\n",
  2111 			  linecnt,i+1);
  2112 		    else
  2113 			cnt_punct++;
  2114 		}
  2115 	    }
  2116 	}
  2117         /* Check parity of quotes. */
  2118         for (s=aline;*s;s++)
  2119 	{
  2120             if (*s==CHAR_DQUOTE)
  2121 	    {
  2122                 if (!(dquotepar=!dquotepar))
  2123 		{
  2124 		    /* parity even */
  2125                     if (!strchr("_-.'`/,;:!?)]} ",s[1]))
  2126 		    {
  2127                         if (pswit[ECHO_SWITCH])
  2128 			    printf("\n%s\n",aline);
  2129                         if (!pswit[OVERVIEW_SWITCH])
  2130                             printf("    Line %ld column %d - "
  2131 			      "Wrongspaced quotes?\n",linecnt,(int)(s-aline)+1);
  2132                         else
  2133                             cnt_punct++;
  2134 		    }
  2135 		}
  2136                 else
  2137 		{
  2138 		    /* parity odd */
  2139                     if (!gcisalpha(s[1]) && !isdigit(s[1]) &&
  2140 		      !strchr("_-/.'`([{$",s[1]) || !s[1])
  2141 		    {
  2142                         if (pswit[ECHO_SWITCH])
  2143 			    printf("\n%s\n",aline);
  2144                         if (!pswit[OVERVIEW_SWITCH])
  2145                             printf("    Line %ld column %d - "
  2146 			      "Wrongspaced quotes?\n",linecnt,(int)(s-aline)+1);
  2147                         else
  2148                             cnt_punct++;
  2149 		    }
  2150 		}
  2151 	    }
  2152 	}
  2153 	if (*aline==CHAR_DQUOTE)
  2154 	{
  2155 	    if (strchr(",;:!?)]} ",aline[1]))
  2156 	    {
  2157 		if (pswit[ECHO_SWITCH])
  2158 		    printf("\n%s\n",aline);
  2159 		if (!pswit[OVERVIEW_SWITCH])
  2160 		    printf("    Line %ld column 1 - Wrongspaced quotes?\n",
  2161 		      linecnt);
  2162 		else
  2163 		    cnt_punct++;
  2164 	    }
  2165 	}
  2166         if (pswit[SQUOTE_SWITCH])
  2167 	{
  2168             for (s=aline;*s;s++)
  2169 	    {
  2170                 if ((*s==CHAR_SQUOTE || *s==CHAR_OPEN_SQUOTE) &&
  2171 		  (s==aline || s>aline && !gcisalpha(s[-1]) ||
  2172 		  !gcisalpha(s[1])))
  2173 		{
  2174                     if (!(squotepar=!squotepar))
  2175 		    {
  2176 			/* parity even */
  2177                         if (!strchr("_-.'`/\",;:!?)]} ",s[1]))
  2178 			{
  2179                             if (pswit[ECHO_SWITCH])
  2180 				printf("\n%s\n",aline);
  2181                             if (!pswit[OVERVIEW_SWITCH])
  2182                                 printf("    Line %ld column %d - "
  2183 				  "Wrongspaced singlequotes?\n",
  2184 				  linecnt,(int)(s-aline)+1);
  2185                             else
  2186                                 cnt_punct++;
  2187 			}
  2188 		    }
  2189                     else
  2190 		    {
  2191 			/* parity odd */
  2192                         if (!gcisalpha(s[1]) && !isdigit(s[1]) &&
  2193 			  !strchr("_-/\".'`",s[1]) || !s[1])
  2194 			{
  2195                             if (pswit[ECHO_SWITCH])
  2196 				printf("\n%s\n",aline);
  2197                             if (!pswit[OVERVIEW_SWITCH])
  2198                                 printf("    Line %ld column %d - "
  2199 				  "Wrongspaced singlequotes?\n",
  2200 				  linecnt,(int)(s-aline)+1);
  2201                             else
  2202                                 cnt_punct++;
  2203 			}
  2204 		    }
  2205 		}
  2206 	    }
  2207 	}
  2208         /*
  2209 	 * Look for double punctuation like ,. or ,,
  2210          * Thanks to DW for the suggestion!
  2211          * In books with references, ".," and ".;" are common
  2212          * e.g. "etc., etc.," and vol. 1.; vol 3.;
  2213          * OTOH, from my initial tests, there are also fairly
  2214          * common errors. What to do? Make these cases paranoid?
  2215          * ".," is the most common, so warnings->dotcomma is used
  2216          * to suppress detailed reporting if it occurs often.
  2217 	 */
  2218         llen=strlen(aline);
  2219         for (i=0;i<llen;i++)
  2220 	{
  2221 	    /* for each punctuation character in the line */
  2222             if (strchr(".?!,;:",aline[i]) && (strchr(".?!,;:",aline[i+1])) &&
  2223 	      aline[i] && aline[i+1])
  2224 	    {
  2225 		/* followed by punctuation, it's a query, unless . . . */
  2226                 if (aline[i]==aline[i+1] && (aline[i]=='.' || aline[i]=='?' ||
  2227 		  aline[i]=='!') ||
  2228 		  !warnings->dotcomma && aline[i]=='.' && aline[i+1]==',' ||
  2229 		  warnings->isFrench && !strncmp(aline+i,",...",4) ||
  2230 		  warnings->isFrench && !strncmp(aline+i,"...,",4) ||
  2231 		  warnings->isFrench && !strncmp(aline+i,";...",4) ||
  2232 		  warnings->isFrench && !strncmp(aline+i,"...;",4) ||
  2233 		  warnings->isFrench && !strncmp(aline+i,":...",4) ||
  2234 		  warnings->isFrench && !strncmp(aline+i,"...:",4) ||
  2235 		  warnings->isFrench && !strncmp(aline+i,"!...",4) ||
  2236 		  warnings->isFrench && !strncmp(aline+i,"...!",4) ||
  2237 		  warnings->isFrench && !strncmp(aline+i,"?...",4) ||
  2238 		  warnings->isFrench && !strncmp(aline+i,"...?",4))
  2239 		{
  2240 		    if (warnings->isFrench && !strncmp(aline+i,",...",4) ||
  2241 		      warnings->isFrench && !strncmp(aline+i,"...,",4) ||
  2242 		      warnings->isFrench && !strncmp(aline+i,";...",4) ||
  2243 		      warnings->isFrench && !strncmp(aline+i,"...;",4) ||
  2244 		      warnings->isFrench && !strncmp(aline+i,":...",4) ||
  2245 		      warnings->isFrench && !strncmp(aline+i,"...:",4) ||
  2246 		      warnings->isFrench && !strncmp(aline+i,"!...",4) ||
  2247 		      warnings->isFrench && !strncmp(aline+i,"...!",4) ||
  2248 		      warnings->isFrench && !strncmp(aline+i,"?...",4) ||
  2249 		      warnings->isFrench && !strncmp(aline+i,"...?",4))
  2250 			i+=4;
  2251 		    ; /* do nothing for .. !! and ?? which can be legit */
  2252 		}
  2253                 else
  2254 		{
  2255                     if (pswit[ECHO_SWITCH])
  2256 			printf("\n%s\n",aline);
  2257                     if (!pswit[OVERVIEW_SWITCH])
  2258                         printf("    Line %ld column %d - Double punctuation?\n",
  2259 			  linecnt,i+1);
  2260                     else
  2261                         cnt_punct++;
  2262 		}
  2263 	    }
  2264 	}
  2265         s=aline;
  2266         while (strstr(s," \" "))
  2267 	{
  2268             if (pswit[ECHO_SWITCH])
  2269 		printf("\n%s\n",aline);
  2270             if (!pswit[OVERVIEW_SWITCH])
  2271                 printf("    Line %ld column %d - Spaced doublequote?\n",
  2272 		  linecnt,(int)(strstr(s," \" ")-aline+1));
  2273             else
  2274                 cnt_punct++;
  2275             s=strstr(s," \" ")+2;
  2276 	}
  2277         s=aline;
  2278         while (strstr(s," ' "))
  2279 	{
  2280             if (pswit[ECHO_SWITCH])
  2281 		printf("\n%s\n",aline);
  2282             if (!pswit[OVERVIEW_SWITCH])
  2283                 printf("    Line %ld column %d - Spaced singlequote?\n",
  2284 		  linecnt,(int)(strstr(s," ' ")-aline+1));
  2285             else
  2286                 cnt_punct++;
  2287             s=strstr(s," ' ")+2;
  2288 	}
  2289         s=aline;
  2290         while (strstr(s," ` "))
  2291 	{
  2292             if (pswit[ECHO_SWITCH])
  2293 		printf("\n%s\n",aline);
  2294             if (!pswit[OVERVIEW_SWITCH])
  2295                 printf("    Line %ld column %d - Spaced singlequote?\n",
  2296 		  linecnt,(int)(strstr(s," ` ")-aline+1));
  2297             else
  2298                 cnt_punct++;
  2299             s=strstr(s," ` ")+2;
  2300 	}
  2301         /* check special case of 'S instead of 's at end of word */
  2302         s=aline+1;
  2303         while (*s)
  2304 	{
  2305             if (*s==CHAR_SQUOTE && s[1]=='S' && s[-1]>='a' && s[-1]<='z')
  2306 	    {
  2307                 if (pswit[ECHO_SWITCH])
  2308 		    printf("\n%s\n",aline);
  2309                 if (!pswit[OVERVIEW_SWITCH])
  2310                     printf("    Line %ld column %d - Capital \"S\"?\n",
  2311 		      linecnt,(int)(s-aline+2));
  2312                 else
  2313                     cnt_punct++;
  2314 	    }
  2315             s++;
  2316 	}
  2317         /*
  2318 	 * Now check special cases - start and end of line -
  2319          * for single and double quotes. Start is sometimes [sic]
  2320          * but better to query it anyway.
  2321          * While we're here, check for dash at end of line.
  2322 	 */
  2323         llen=strlen(aline);
  2324         if (llen>1)
  2325 	{
  2326             if (aline[llen-1]==CHAR_DQUOTE || aline[llen-1]==CHAR_SQUOTE ||
  2327 	      aline[llen-1]==CHAR_OPEN_SQUOTE)
  2328                 if (aline[llen-2]==CHAR_SPACE)
  2329 		{
  2330                     if (pswit[ECHO_SWITCH])
  2331 			printf("\n%s\n",aline);
  2332                     if (!pswit[OVERVIEW_SWITCH])
  2333                         printf("    Line %ld column %d - Spaced quote?\n",
  2334 			  linecnt,llen);
  2335                     else
  2336                         cnt_punct++;
  2337 		}
  2338             if ((aline[0]==CHAR_SQUOTE || aline[0]==CHAR_OPEN_SQUOTE) &&
  2339 	      aline[1]==CHAR_SPACE)
  2340 	    {
  2341 		if (pswit[ECHO_SWITCH])
  2342 		    printf("\n%s\n",aline);
  2343 		if (!pswit[OVERVIEW_SWITCH])
  2344 		    printf("    Line %ld column 1 - Spaced quote?\n",linecnt);
  2345 		else
  2346 		    cnt_punct++;
  2347 	    }
  2348             /*
  2349 	     * Dash at end of line may well be legit - paranoid mode only
  2350              * and don't report em-dash at line-end.
  2351 	     */
  2352             if (pswit[PARANOID_SWITCH] && warnings->hyphen)
  2353 	    {
  2354                 for (i=llen-1;i>0 && (unsigned char)aline[i]<=CHAR_SPACE;i--)
  2355 		    ;
  2356                 if (aline[i]=='-' && aline[i-1]!='-')
  2357 		{
  2358                     if (pswit[ECHO_SWITCH])
  2359 			printf("\n%s\n",aline);
  2360                     if (!pswit[OVERVIEW_SWITCH])
  2361                         printf("    Line %ld column %d - "
  2362 			  "Hyphen at end of line?\n",linecnt,i);
  2363 		}
  2364 	    }
  2365 	}
  2366         /*
  2367 	 * Brackets are often unspaced, but shouldn't be surrounded by alpha.
  2368          * If so, suspect a scanno like "a]most".
  2369 	 */
  2370         llen=strlen(aline);
  2371         for (i=1;i<llen-1;i++)
  2372 	{
  2373 	    /* for each bracket character in the line except 1st & last */
  2374             if (strchr("{[()]}",aline[i]) && gcisalpha(aline[i-1]) &&
  2375 	      gcisalpha(aline[i+1]))
  2376 	    {
  2377                 if (pswit[ECHO_SWITCH])
  2378 		    printf("\n%s\n",aline);
  2379                 if (!pswit[OVERVIEW_SWITCH])
  2380                     printf("    Line %ld column %d - Unspaced bracket?\n",
  2381 		      linecnt,i);
  2382                 else
  2383                     cnt_punct++;
  2384 	    }
  2385 	}
  2386         llen=strlen(aline);
  2387         if (warnings->endquote)
  2388 	{
  2389             for (i=1;i<llen;i++)
  2390 	    {
  2391 		/* for each character in the line except 1st */
  2392                 if (aline[i]==CHAR_DQUOTE && isalpha(aline[i-1]))
  2393 		{
  2394 		    if (pswit[ECHO_SWITCH])
  2395 			printf("\n%s\n",aline);
  2396 		    if (!pswit[OVERVIEW_SWITCH])
  2397 			printf("    Line %ld column %d - "
  2398 			  "endquote missing punctuation?\n",linecnt,i);
  2399 		    else
  2400 			cnt_punct++;
  2401 		}
  2402 	    }
  2403 	}
  2404 	/*
  2405          * Check for <HTML TAG>.
  2406          * If there is a < in the line, followed at some point
  2407          * by a > then we suspect HTML.
  2408 	 */
  2409         if (strstr(aline,"<") && strstr(aline,">"))
  2410 	{
  2411             i=(signed int)(strstr(aline,">")-strstr(aline,"<")+1);
  2412             if (i>0)
  2413 	    {
  2414                 strncpy(wrk,strstr(aline,"<"),i);
  2415                 wrk[i]=0;
  2416                 if (pswit[ECHO_SWITCH])
  2417 		    printf("\n%s\n",aline);
  2418                 if (!pswit[OVERVIEW_SWITCH])
  2419                     printf("    Line %ld column %d - HTML Tag? %s \n",
  2420 		      linecnt,(int)(strstr(aline,"<")-aline)+1,wrk);
  2421                 else
  2422                     cnt_html++;
  2423 	    }
  2424 	}
  2425         /*
  2426 	 * Check for &symbol; HTML.
  2427          * If there is a & in the line, followed at
  2428          * some point by a ; then we suspect HTML.
  2429 	 */
  2430         if (strstr(aline,"&") && strstr(aline,";"))
  2431 	{
  2432             i=(int)(strstr(aline,";")-strstr(aline,"&")+1);
  2433             for (s=strstr(aline,"&");s<strstr(aline,";");s++)   
  2434                 if (*s==CHAR_SPACE)
  2435 		    i=0;                /* Don't report "Jones & Son;" */
  2436             if (i>0)
  2437 	    {
  2438                 strncpy(wrk,strstr(aline,"&"),i);
  2439                 wrk[i]=0;
  2440                 if (pswit[ECHO_SWITCH])
  2441 		    printf("\n%s\n",aline);
  2442                 if (!pswit[OVERVIEW_SWITCH])
  2443                     printf("    Line %ld column %d - HTML symbol? %s \n",
  2444 		      linecnt,(int)(strstr(aline,"&")-aline)+1,wrk);
  2445                 else
  2446                     cnt_html++;
  2447 	    }
  2448 	}
  2449         /*
  2450 	 * At end of paragraph, check for mismatched quotes.
  2451          * We don't want to report an error immediately, since it is a
  2452          * common convention to omit the quotes at end of paragraph if
  2453          * the next paragraph is a continuation of the same speaker.
  2454          * Where this is the case, the next para should begin with a
  2455          * quote, so we store the warning message and only display it
  2456          * at the top of the next iteration if the new para doesn't
  2457          * start with a quote.
  2458          * The -p switch overrides this default, and warns of unclosed
  2459          * quotes on _every_ paragraph, whether the next begins with a
  2460          * quote or not.
  2461 	 */
  2462         if (isemptyline)
  2463 	{
  2464 	    /* end of para - add up the totals */
  2465             if (counters.quot%2)
  2466                 sprintf(dquote_err,"    Line %ld - Mismatched quotes\n",
  2467 		  linecnt);
  2468             if (pswit[SQUOTE_SWITCH] && counters.open_single_quote &&
  2469 	      counters.open_single_quote!=counters.close_single_quote)
  2470                 sprintf(squote_err,"    Line %ld - Mismatched singlequotes?\n",
  2471 		  linecnt);
  2472             if (pswit[SQUOTE_SWITCH] && counters.open_single_quote &&
  2473 	      counters.open_single_quote!=counters.close_single_quote &&
  2474 	      counters.open_single_quote!=counters.close_single_quote+1)
  2475 		/*
  2476 		 * Flag it to be noted regardless of the
  2477 		 * first char of the next para.
  2478 		 */
  2479                 squot=1;
  2480             if (counters.r_brack)
  2481                 sprintf(rbrack_err,"    Line %ld - "
  2482 		  "Mismatched round brackets?\n",linecnt);
  2483             if (counters.s_brack)
  2484                 sprintf(sbrack_err,"    Line %ld - "
  2485 		  "Mismatched square brackets?\n",linecnt);
  2486             if (counters.c_brack)
  2487                 sprintf(cbrack_err,"    Line %ld - "
  2488 		  "Mismatched curly brackets?\n",linecnt);
  2489             if (counters.c_unders%2)
  2490                 sprintf(unders_err,"    Line %ld - Mismatched underscores?\n",
  2491 		  linecnt);
  2492 	    memset(&counters,0,sizeof(counters));
  2493 	    /* let the next iteration know that it's starting a new para */
  2494             isnewpara=1;
  2495 	}
  2496         /*
  2497 	 * Check for omitted punctuation at end of paragraph by working back
  2498 	 * through prevline. DW.
  2499          * Need to check this only for "normal" paras.
  2500          * So what is a "normal" para?
  2501          *    Not normal if one-liner (chapter headings, etc.)
  2502          *    Not normal if doesn't contain at least one locase letter
  2503          *    Not normal if starts with space
  2504 	 */
  2505         if (isemptyline)
  2506 	{
  2507 	    /* end of para */
  2508             for (s=prevline,i=0;*s && !i;s++)
  2509                 if (gcisletter(*s))
  2510 		    /* use i to indicate the presence of a letter on the line */
  2511                     i=1;
  2512             /*
  2513 	     * This next "if" is a problem.
  2514              * If we say "start_para_line <= linecnt - 1", that includes
  2515 	     * one-line "paragraphs" like chapter heads. Lotsa false positives.
  2516              * If we say "start_para_line < linecnt - 1" it doesn't, but then it
  2517              * misses genuine one-line paragraphs.
  2518 	     */
  2519             if (i && last.blen>2 && start_para_line<linecnt-1 &&
  2520 	      *prevline>CHAR_SPACE)
  2521 	    {
  2522                 for (i=strlen(prevline)-1;
  2523 		  (prevline[i]==CHAR_DQUOTE || prevline[i]==CHAR_SQUOTE) &&
  2524 		  prevline[i]>CHAR_SPACE && i>0;
  2525 		  i--)
  2526 		    ;
  2527                 for (;i>0;i--)
  2528 		{
  2529                     if (gcisalpha(prevline[i]))
  2530 		    {
  2531                         if (pswit[ECHO_SWITCH])
  2532 			    printf("\n%s\n",prevline);
  2533                         if (!pswit[OVERVIEW_SWITCH])
  2534                             printf("    Line %ld column %d - "
  2535 			      "No punctuation at para end?\n",
  2536 			      linecnt-1,strlen(prevline));
  2537                         else
  2538                             cnt_punct++;
  2539                         break;
  2540 		    }
  2541                     if (strchr("-.:!([{?}])",prevline[i]))
  2542                         break;
  2543 		}
  2544 	    }
  2545 	}
  2546         strcpy(prevline,aline);
  2547     }
  2548     fclose(infile);
  2549     if (!pswit[OVERVIEW_SWITCH])
  2550         for (i=0;i<MAX_QWORD;i++)
  2551             if (dupcnt[i])
  2552                 printf("\nNote: Queried word %s was duplicated %d time%s\n",
  2553 		  qword[i],dupcnt[i],"s");
  2554 }
  2555 
  2556 /*
  2557  * flgets:
  2558  *
  2559  * Get one line from the input stream, checking for
  2560  * the existence of exactly one CR/LF line-end per line.
  2561  *
  2562  * Returns: a pointer to the line.
  2563  */
  2564 char *flgets(char *theline,int maxlen,FILE *thefile,long lcnt)
  2565 {
  2566     char c;
  2567     int len,isCR,cint;
  2568     *theline=0;
  2569     len=isCR=0;
  2570     c=cint=fgetc(thefile);
  2571     do
  2572     {
  2573         if (cint==EOF)
  2574             return NULL;
  2575 	/* either way, it's end of line */
  2576         if (c==10)
  2577 	{
  2578             if (isCR)
  2579                 break;
  2580             else
  2581 	    {
  2582 		/* Error - a LF without a preceding CR */
  2583                 if (pswit[LINE_END_SWITCH])
  2584 		{
  2585                     if (pswit[ECHO_SWITCH])
  2586 			printf("\n%s\n",theline);
  2587                     if (!pswit[OVERVIEW_SWITCH])
  2588                         printf("    Line %ld - No CR?\n",lcnt);
  2589                     else
  2590                         cnt_lineend++;
  2591 		}
  2592                 break;
  2593 	    }
  2594 	}
  2595         if (c==13)
  2596 	{
  2597             if (isCR)
  2598 	    {
  2599 		/* Error - two successive CRs */
  2600                 if (pswit[LINE_END_SWITCH])
  2601 		{
  2602                     if (pswit[ECHO_SWITCH])
  2603 			printf("\n%s\n",theline);
  2604                     if (!pswit[OVERVIEW_SWITCH])
  2605                         printf("    Line %ld - Two successive CRs?\n",lcnt);
  2606                     else
  2607                         cnt_lineend++;
  2608 		}
  2609 	    }
  2610             isCR=1;
  2611 	}
  2612         else
  2613 	{
  2614             if (pswit[LINE_END_SWITCH] && isCR)
  2615 	    {
  2616                 if (pswit[ECHO_SWITCH])
  2617 		    printf("\n%s\n",theline);
  2618                 if (!pswit[OVERVIEW_SWITCH])
  2619                     printf("    Line %ld column %d - CR without LF?\n",
  2620 		      lcnt,len+1);
  2621                 else
  2622                     cnt_lineend++;
  2623 	    }
  2624             theline[len]=c;
  2625             len++;
  2626             theline[len]=0;
  2627             isCR=0;
  2628 	}
  2629         c=cint=fgetc(thefile);
  2630     } while(len<maxlen);
  2631     if (pswit[MARKUP_SWITCH])  
  2632         postprocess_for_HTML(theline);
  2633     if (pswit[DP_SWITCH])  
  2634         postprocess_for_DP(theline);
  2635     return theline;
  2636 }
  2637 
  2638 /*
  2639  * mixdigit:
  2640  *
  2641  * Takes a "word" as a parameter, and checks whether it
  2642  * contains a mixture of alpha and digits. Generally, this is an
  2643  * error, but may not be for cases like 4th or L5 12s. 3d.
  2644  *
  2645  * Returns: 0 if no error found, 1 if error.
  2646  */
  2647 int mixdigit(char *checkword)
  2648 {
  2649     int wehaveadigit,wehavealetter,firstdigits,query,wl;
  2650     char *s;
  2651     wehaveadigit=wehavealetter=query=0;
  2652     for (s=checkword;*s;s++)
  2653         if (gcisalpha(*s))
  2654             wehavealetter=1;
  2655         else
  2656             if (gcisdigit(*s))
  2657                 wehaveadigit=1;
  2658     if (wehaveadigit && wehavealetter)
  2659     {
  2660 	/* Now exclude common legit cases, like "21st" and "12l. 3s. 11d." */
  2661         query=1;
  2662         wl=strlen(checkword);
  2663         for (firstdigits=0;gcisdigit(checkword[firstdigits]);firstdigits++)
  2664             ;
  2665         /* digits, ending in st, rd, nd, th of either case */
  2666         if (firstdigits+2==wl && (matchword(checkword+wl-2,"st") ||
  2667 	  matchword(checkword+wl-2,"rd") || matchword(checkword+wl-2,"nd") ||
  2668 	  matchword(checkword+wl-2,"th")))
  2669 	    query=0;
  2670         if (firstdigits+3==wl && (matchword(checkword+wl-3,"sts") ||
  2671 	  matchword(checkword+wl-3,"rds") || matchword(checkword+wl-3,"nds") ||
  2672 	  matchword(checkword+wl-3,"ths")))
  2673 	    query=0;
  2674         if (firstdigits+3==wl && (matchword(checkword+wl-4,"stly") ||
  2675 	  matchword(checkword+wl-4,"rdly") ||
  2676 	  matchword(checkword+wl-4,"ndly") || matchword(checkword+wl-4,"thly")))
  2677 	    query=0;
  2678         /* digits, ending in l, L, s or d */
  2679         if (firstdigits+1==wl && (checkword[wl-1]=='l' ||
  2680 	  checkword[wl-1]=='L' || checkword[wl-1]=='s' || checkword[wl-1]=='d'))
  2681 	    query=0;
  2682         /*
  2683 	 * L at the start of a number, representing Britsh pounds, like L500.
  2684          * This is cute. We know the current word is mixeddigit. If the first
  2685          * letter is L, there must be at least one digit following. If both
  2686          * digits and letters follow, we have a genuine error, else we have a
  2687          * capital L followed by digits, and we accept that as a non-error.
  2688 	 */
  2689         if (checkword[0]=='L' && !mixdigit(checkword+1))
  2690 	    query=0;
  2691     }
  2692     return query;
  2693 }
  2694 
  2695 /*
  2696  * getaword:
  2697  *
  2698  * Extracts the first/next "word" from the line, and puts
  2699  * it into "thisword". A word is defined as one English word unit--or
  2700  * at least that's the aim.
  2701  *
  2702  * Returns: a pointer to the position in the line where we will start
  2703  *          looking for the next word.
  2704  */
  2705 char *getaword(char *fromline,char *thisword)
  2706 {
  2707     int i,wordlen;
  2708     char *s;
  2709     wordlen=0;
  2710     for (;!gcisdigit(*fromline) && !gcisalpha(*fromline) && *fromline;
  2711       fromline++)
  2712 	;
  2713     /*
  2714      * Use a look-ahead to handle exceptions for numbers like 1,000 and 1.35.
  2715      * Especially yucky is the case of L1,000
  2716      * This section looks for a pattern of characters including a digit
  2717      * followed by a comma or period followed by one or more digits.
  2718      * If found, it returns this whole pattern as a word; otherwise we discard
  2719      * the results and resume our normal programming.
  2720      */
  2721     s=fromline;
  2722     for (;(gcisdigit(*s) || gcisalpha(*s) || *s==',' || *s=='.') &&
  2723       wordlen<MAXWORDLEN;s++)
  2724     {
  2725 	thisword[wordlen]=*s;
  2726         wordlen++;
  2727     }
  2728     thisword[wordlen]=0;
  2729     for (i=1;i<wordlen-1;i++)
  2730     {
  2731         if (thisword[i]=='.' || thisword[i]==',')
  2732 	{
  2733             if (gcisdigit(thisword[i-1]) && gcisdigit(thisword[i-1]))
  2734 	    {
  2735                 fromline=s;
  2736                 return fromline;
  2737 	    }
  2738 	}
  2739     }
  2740     /* we didn't find a punctuated number - do the regular getword thing */
  2741     wordlen=0;
  2742     for (;(gcisdigit(*fromline) || gcisalpha(*fromline) || *fromline=='\'') &&
  2743       wordlen<MAXWORDLEN;fromline++)
  2744     {
  2745         thisword[wordlen]=*fromline;
  2746         wordlen++;
  2747     }
  2748     thisword[wordlen]=0;
  2749     return fromline;
  2750 }
  2751 
  2752 /*
  2753  * matchword:
  2754  *
  2755  * A case-insensitive string matcher.
  2756  */
  2757 int matchword(char *checkfor,char *thisword)
  2758 {
  2759     unsigned int ismatch,i;
  2760     if (strlen(checkfor)!=strlen(thisword))
  2761 	return 0;
  2762     ismatch=1;     /* assume a match until we find a difference */
  2763     for (i=0;i<strlen(checkfor);i++)
  2764         if (toupper(checkfor[i])!=toupper(thisword[i]))
  2765             ismatch=0;
  2766     return ismatch;
  2767 }
  2768 
  2769 /*
  2770  * lowerit:
  2771  *
  2772  * Lowercase the line.
  2773  */
  2774 
  2775 void lowerit(char *theline)
  2776 {
  2777     for (;*theline;theline++)
  2778         if (*theline>='A' && *theline<='Z')
  2779             *theline+=32;
  2780 }
  2781 
  2782 /*
  2783  * isroman:
  2784  *
  2785  * Is this word a Roman Numeral?
  2786  *
  2787  * It doesn't actually validate that the number is a valid Roman Numeral--for
  2788  * example it will pass MXXXXXXXXXX as a valid Roman Numeral, but that's not
  2789  * what we're here to do. If it passes this, it LOOKS like a Roman numeral.
  2790  * Anyway, the actual Romans were pretty tolerant of bad arithmetic, or
  2791  * expressions thereof, except when it came to taxes. Allow any number of M,
  2792  * an optional D, an optional CM or CD, any number of optional Cs, an optional
  2793  * XL or an optional XC, an optional IX or IV, an optional V and any number
  2794  * of optional Is.
  2795  */
  2796 int isroman(char *t)
  2797 {
  2798     char *s;
  2799     if (!t || !*t)
  2800 	return 0;
  2801     s=t;
  2802     while (*t=='m' && *t)
  2803 	t++;
  2804     if (*t=='d')
  2805 	t++;
  2806     if (*t=='c' && t[1]=='m')
  2807 	t+=2;
  2808     if (*t=='c' && t[1]=='d')
  2809 	t+=2;
  2810     while (*t=='c' && *t)
  2811 	t++;
  2812     if (*t=='x' && t[1]=='l')
  2813 	t+=2;
  2814     if (*t=='x' && t[1]=='c')
  2815 	t+=2;
  2816     if (*t=='l')
  2817 	t++;
  2818     while (*t=='x' && *t)
  2819 	t++;
  2820     if (*t=='i' && t[1]=='x')
  2821 	t+=2;
  2822     if (*t=='i' && t[1]=='v')
  2823 	t+=2;
  2824     if (*t=='v')
  2825 	t++;
  2826     while (*t=='i' && *t)
  2827 	t++;
  2828     return !*t;
  2829 }
  2830 
  2831 /*
  2832  * gcisalpha:
  2833  *
  2834  * A version of isalpha() that is somewhat lenient on 8-bit texts.
  2835  * If we use the standard function, 8-bit accented characters break
  2836  * words, so that tete with accented characters appears to be two words, "t"
  2837  * and "t", with 8-bit characters between them. This causes over-reporting of
  2838  * errors. gcisalpha() recognizes accented letters from the CP1252 (Windows)
  2839  * and ISO-8859-1 character sets, which are the most common PG 8-bit types.
  2840  */
  2841 int gcisalpha(unsigned char c)
  2842 {
  2843     if (c>='a' && c<='z')
  2844 	return 1;
  2845     if (c>='A' && c<='Z')
  2846 	return 1;
  2847     if (c<140)
  2848 	return 0;
  2849     if (c>=192 && c!=208 && c!=215 && c!=222 && c!=240 && c!=247 && c!=254)
  2850 	return 1;
  2851     if (c==140 || c==142 || c==156 || c==158 || c==159)
  2852 	return 1;
  2853     return 0;
  2854 }
  2855 
  2856 /*
  2857  * gcisdigit:
  2858  *
  2859  * A version of isdigit() that doesn't get confused in 8-bit texts.
  2860  */
  2861 int gcisdigit(unsigned char c)
  2862 {   
  2863     return c>='0' && c<='9';
  2864 }
  2865 
  2866 /*
  2867  * gcisletter:
  2868  *
  2869  * A version of isletter() that doesn't get confused in 8-bit texts.
  2870  * NB: this is ISO-8891-1-specific.
  2871  */
  2872 int gcisletter(unsigned char c)
  2873 {   
  2874     return c>='A' && c<='Z' || c>='a' && c<='z' || c>=192;
  2875 }
  2876 
  2877 /*
  2878  * gcstrchr:
  2879  *
  2880  * Wraps strchr to return NULL if the character being searched for is zero.
  2881  */
  2882 char *gcstrchr(char *s,char c)
  2883 {
  2884     if (!c)
  2885 	return NULL;
  2886     return strchr(s,c);
  2887 }
  2888 
  2889 /*
  2890  * postprocess_for_DP:
  2891  *
  2892  * Invoked with the -d switch from flgets().
  2893  * It simply "removes" from the line a hard-coded set of common
  2894  * DP-specific tags, so that the line passed to the main routine has
  2895  * been pre-cleaned of DP markup.
  2896  */
  2897 void postprocess_for_DP(char *theline)
  2898 {
  2899     char *s,*t;
  2900     int i;
  2901     if (!*theline) 
  2902         return;
  2903     for (i=0;*DPmarkup[i];i++)
  2904     {
  2905         s=strstr(theline,DPmarkup[i]);
  2906         while (s)
  2907 	{
  2908             t=s+strlen(DPmarkup[i]);
  2909             while (*t)
  2910 	    {
  2911                 *s=*t;
  2912                 t++;
  2913 		s++;
  2914 	    }
  2915             *s=0;
  2916             s=strstr(theline,DPmarkup[i]);
  2917 	}
  2918     }
  2919 }
  2920 
  2921 /*
  2922  * postprocess_for_HTML:
  2923  *
  2924  * Invoked with the -m switch from flgets().
  2925  * It simply "removes" from the line a hard-coded set of common
  2926  * HTML tags and "replaces" a hard-coded set of common HTML
  2927  * entities, so that the line passed to the main routine has
  2928  * been pre-cleaned of HTML.
  2929  */
  2930 void postprocess_for_HTML(char *theline)
  2931 {
  2932     if (strstr(theline,"<") && strstr(theline,">"))
  2933         while (losemarkup(theline))
  2934             ;
  2935     while (loseentities(theline))
  2936         ;
  2937 }
  2938 
  2939 char *losemarkup(char *theline)
  2940 {
  2941     char *s,*t;
  2942     int i;
  2943     if (!*theline) 
  2944         return NULL;
  2945     s=strstr(theline,"<");
  2946     t=strstr(theline,">");
  2947     if (!s || !t)
  2948 	return NULL;
  2949     for (i=0;*markup[i];i++)
  2950         if (!tagcomp(s+1,markup[i]))
  2951 	{
  2952             if (!t[1])
  2953 	    {
  2954                 *s=0;
  2955                 return s;
  2956 	    }
  2957             else if (t>s)
  2958 	    {
  2959 		strcpy(s,t+1);
  2960 		return s;
  2961 	    }
  2962         }
  2963     /* It's an unrecognized <xxx>. */
  2964     return NULL;
  2965 }
  2966 
  2967 char *loseentities(char *theline)
  2968 {
  2969     int i;
  2970     char *s,*t;
  2971     if (!*theline) 
  2972         return NULL;
  2973     for (i=0;*entities[i].htmlent;i++)
  2974     {
  2975         s=strstr(theline,entities[i].htmlent);
  2976         if (s)
  2977 	{
  2978             t=malloc((size_t)strlen(s));
  2979             if (!t)
  2980 		return NULL;
  2981             strcpy(t,s+strlen(entities[i].htmlent));
  2982             strcpy(s,entities[i].textent);
  2983             strcat(s,t);
  2984             free(t);
  2985             return theline;
  2986 	}
  2987     }
  2988     for (i=0;*entities[i].htmlnum;i++)
  2989     {
  2990         s=strstr(theline,entities[i].htmlnum);
  2991         if (s)
  2992 	{
  2993             t=malloc((size_t)strlen(s));
  2994             if (!t)
  2995 		return NULL;
  2996             strcpy(t,s+strlen(entities[i].htmlnum));
  2997             strcpy(s,entities[i].textent);
  2998             strcat(s,t);
  2999             free(t);
  3000             return theline;
  3001 	}
  3002     }
  3003     return NULL;
  3004 }
  3005 
  3006 int tagcomp(char *strin,char *basetag)
  3007 {
  3008     char *s,*t;
  3009     s=basetag;
  3010     t=strin;
  3011     if (*t=='/')
  3012 	t++; /* ignore a slash */
  3013     while (*s && *t)
  3014     {
  3015         if (tolower(*s)!=tolower(*t))
  3016 	    return 1;
  3017         s++;
  3018 	t++;
  3019     }
  3020     return 0;
  3021 }
  3022 
  3023 void proghelp()
  3024 {
  3025     fputs("Bookloupe version " PACKAGE_VERSION ".\n",stderr);
  3026     fputs("Copyright 2000-2005 Jim Tinsley <jtinsley@pobox.com>.\n",stderr);
  3027     fputs("Copyright 2012- J. Ali Harlow <ali@juiblex.co.uk>.\n",stderr);
  3028     fputs("Bookloupe comes wih ABSOLUTELY NO WARRANTY. "
  3029       "For details, read the file COPYING.\n",stderr);
  3030     fputs("This is Free Software; "
  3031       "you may redistribute it under certain conditions (GPL);\n",stderr);
  3032     fputs("read the file COPYING for details.\n\n",stderr);
  3033     fputs("Usage is: bookloupe [-setpxloyhud] filename\n",stderr);
  3034     fputs("  where -s checks single quotes, -e suppresses echoing lines, "
  3035       "-t checks typos\n",stderr);
  3036     fputs("  -x (paranoid) switches OFF -t and extra checks, "
  3037       "-l turns OFF line-end checks\n",stderr);
  3038     fputs("  -o just displays overview without detail, "
  3039       "-h echoes header fields\n",stderr);
  3040     fputs("  -v (verbose) unsuppresses duplicate reporting, "
  3041       "-m suppresses markup\n",stderr);
  3042     fputs("  -d ignores DP-specific markup,\n",stderr);
  3043     fputs("  -u uses a file gutcheck.typ to query user-defined "
  3044       "possible typos\n",stderr);
  3045     fputs("Sample usage: bookloupe warpeace.txt \n",stderr);
  3046     fputs("\n",stderr);
  3047     fputs("Bookloupe looks for errors in Project Gutenberg(TM) etexts.\n",
  3048       stderr);
  3049     fputs("Bookloupe queries anything it thinks shouldn't be in a PG text; "
  3050       "non-ASCII\n",stderr);
  3051     fputs("characters like accented letters, "
  3052       "lines longer than 75 or shorter than 55,\n",stderr);
  3053     fputs("unbalanced quotes or brackets, "
  3054       "a variety of badly formatted punctuation, \n",stderr);
  3055     fputs("HTML tags, some likely typos. "
  3056       "It is NOT a substitute for human judgement.\n",stderr);
  3057     fputs("\n",stderr);
  3058 }