/*@externs.h:External Declarations:Directories and file conventions@**********/
/* */
/* THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.27) */
/* COPYRIGHT (C) 1991, 2002 Jeffrey H. Kingston */
/* */
/* Jeffrey H. Kingston (jeff@it.usyd.edu.au) */
/* Basser Department of Computer Science */
/* The University of Sydney 2006 */
/* AUSTRALIA */
/* */
/* This program is free software; you can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either Version 2, or (at your option) */
/* any later version. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA */
/* */
/* FILE: externs.h */
/* MODULE: External Declarations */
/* */
/*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <locale.h>
#if LOCALE_ON
#include <nl_types.h>
extern nl_catd MsgCat;
#define condcatgets(cat, set, msg, s) (cat ? catgets(cat, set, msg, s) : s)
#else
#define condcatgets(cat, set, msg, s) s
#endif
/*****************************************************************************/
/* */
/* Include, font and database directories, and the DEBUG_ON and ASSERT_ON */
/* flags (defined by -D options on the cc command line in the makefile). */
/* */
/* LATIN Non-zero means compile for ISO-LATIN-1 char set. */
/* LIB_DIR The system directory where library files are kept */
/* INCL_DIR The subdirectory of LIB_DIR where @Include files are kept */
/* FONT_DIR The subdirectory of LIB_DIR where .AFM font files are kept */
/* MAPS_DIR The subdirectory of LIB_DIR where .LCM files are kept */
/* DATA_DIR The subdirectory of LIB_DIR where database files are kept */
/* HYPH_DIR The subdirectory of LIB_DIR where hyphenation files kept */
/* LOCALE_DIR The subdirectory of LIB_DIR where locale files are kept */
/* CHAR_IN Determines assignment of input chars to lex classes */
/* CHAR_OUT Determines appearance of literal chars in output */
/* DEBUG_ON Non-zero means compile debug code (lout -d) */
/* ASSERT_ON Non-zero means test assertions */
/* LOCALE_ON Non-zero means compile setlocale() etc. code */
/* */
/* #define LIB_DIR "/usr/local/lib/lout" */
/* #define INCL_DIR "include" */
/* #define FONT_DIR "font" */
/* #define MAPS_DIR "maps" */
/* #define DATA_DIR "data" */
/* #define HYPH_DIR "hyph" */
/* #define LOCALE_DIR "locale" (only used if LOCALE_ON) */
/* #define CHAR_IN 0 */
/* #define CHAR_OUT 0 */
/* #define DEBUG_ON 0 */
/* #define ASSERT_ON 1 */
/* #define LOCALE_ON 1 */
/* */
/*****************************************************************************/
/*@::File naming conventions and version@*************************************/
/* */
/* File naming conventions and version */
/* */
/* LOUT_VERSION Version information */
/* CROSS_DB The default name of the cross reference database */
/* SOURCE_SUFFIX Optional suffix of source files and include files */
/* INDEX_SUFFIX The suffix of database index files */
/* NEW_INDEX_SUFFIX The suffix of new database index files */
/* DATA_SUFFIX The suffix of database data files */
/* NEW_DATA_SUFFIX The additional suffix of new database data files */
/* HYPH_SUFFIX The suffix of unpacked hyphenation files */
/* HYPH_PACKED_SUFFIX The suffix of packed hyphenation files */
/* FILTER_IN The prefix of the name of the input file to filters */
/* FILTER_OUT The prefix of the name of the output file to filters */
/* FILTER_ERR The name of the error file to filters */
/* */
/*****************************************************************************/
#define LOUT_VERSION AsciiToFull("Basser Lout Version 3.27 (November 2002)")
#define CROSS_DB AsciiToFull("lout")
#define SOURCE_SUFFIX AsciiToFull(".lt")
#define INDEX_SUFFIX AsciiToFull(".li")
#define NEW_INDEX_SUFFIX AsciiToFull(".lix")
#define DATA_SUFFIX AsciiToFull(".ld")
#define NEW_DATA_SUFFIX AsciiToFull("x")
#define HYPH_SUFFIX AsciiToFull(".lh")
#define HYPH_PACKED_SUFFIX AsciiToFull(".lp")
#define FILTER_IN AsciiToFull("louti")
#define FILTER_OUT AsciiToFull("lout")
#define FILTER_ERR AsciiToFull("lout.err")
/*****************************************************************************/
/* */
/* Operating system dependent things */
/* */
/* (1) Reading files */
/* */
/* Starting from Version 3.27, Lout reads all files in "binary mode", so */
/* that the actual characters in the file are presented to Lout. Lout */
/* accepts any of LF, CR, LF+CR, CR+LF as a valid line ending on any */
/* line of any file, taking the longest match as usual. */
/* */
/* This strategy has two major advantages: files transferred between */
/* operating systems are always read correctly without needing any */
/* conversion, and ftell() always works properly on binary files (its */
/* behaviour on text files has been observed to vary). */
/* */
/* READ_FILE Mode passed to fopen() when reading any file at all */
/* */
/* (2) Writing files */
/* */
/* Starting from Version 3.27, Lout writes all files in "binary mode", */
/* so that the actual characters in the file are all explicitly written */
/* by Lout. The macro STR_NEWLINE defines what character(s) Lout will */
/* write when it wants to end the line; throughout Lout the "\n" thing */
/* never appears, only STR_NEWLINE. STR_NEWLINE is defined below to be */
/* "\n" on Unix, "\r\n" on DOS, and "\r" on Mac. */
/* */
/* This strategy might seem to be overkill, given that writing "\n" on */
/* a DOS text file would write "\r\n" anyway. Unfortunately, when Lout */
/* is writing a database file, it uses ftell() as it is writing to find */
/* out where it's up to. Since we can only be sure that ftell() will */
/* work on binary files, we've made all file writing be binary. */
/* */
/* WRITE_FILE Mode passed to fopen() when writing any file at all */
/* APPEND_FILE Mode passed to fopen() when appending any file at all */
/* STR_NEWLINE The string to write to a binary file to end a line */
/* */
/* (3) Directory character */
/* */
/* Operating systems differ in the character used in path names. */
/* */
/* STR_DIR Directory character used in file path names */
/* */
/* (4) System command and file name for uncompressing EPS files */
/* */
/* UNCOMPRESS_COM System command for uncompressing compressed EPS file */
/* LOUT_EPS Name of temporary uncompressed EPS file */
/* */
/* There is one further call to system() in the Lout source code: the one */
/* that implements filtered parameters such as prg2lout. The strings */
/* passed to this call to system() are the values of @Filter symbols */
/* within Lout definitions. */
/* */
/*****************************************************************************/
#if OS_UNIX
#define READ_FILE "r"
#define WRITE_FILE "w"
#define APPEND_FILE "a"
#define STR_NEWLINE AsciiToFull("\n")
#define STR_DIR AsciiToFull("/")
#define UNCOMPRESS_COM "gunzip -c %s > %s"
#define LOUT_EPS "lout.eps"
#else
#if OS_DOS
#define READ_FILE "rb"
#define WRITE_FILE "wb"
#define APPEND_FILE "ab"
#define STR_NEWLINE AsciiToFull("\r\n")
#define STR_DIR AsciiToFull("/")
#define UNCOMPRESS_COM "gunzip -c %s > %s"
#define LOUT_EPS "lout.eps"
#else
#if OS_MAC
#define READ_FILE "r"
#define WRITE_FILE "w"
#define APPEND_FILE "a"
#define STR_NEWLINE AsciiToFull("\r")
#define STR_DIR AsciiToFull(":")
#define UNCOMPRESS_COM "gunzip -c %s > %s"
#define LOUT_EPS "lout.eps"
#else
If you're compiling this, you've got the wrong settings in the makefile!
#endif
#endif
#endif
/*@::Significant limits@******************************************************/
/* */
/* Significant Limits (other insignificant ones appear in other files) */
/* */
/* MAX_FULL_LENGTH The maximum value storable in type FULL_LENGTH. */
/* NB this cannot be 2**31 - 1 because there are */
/* intermediate results that exceed MAX_FULL_LENGTH */
/* and are subsequently reduced to MAX_FULL_LENGTH. */
/* For example, some intermediate results may exceed */
/* MAX_FULL_LENGTH by a factor of SF, which is defined */
/* below to be 128 (2**7). The value given is 2**23-1, */
/* which is about 148 metres in Lout's precision. */
/* */
/* MAX_SHORT_LENGTH The maximum value storable in type SHORT_LENGTH. */
/* */
/* MAX_FILES The maximum number of files. This could only be */
/* increased if the file_num() field of type FILE_POS */
/* is enlarged beyond its present 16 bits. */
/* */
/* MAX_LINE 1 + the maximum length of an input line in source */
/* and database files. This is used for the lexical */
/* analyser's input line buffer only, and could be */
/* increased immediately to 4096, and even further if */
/* more than the current 12 bits was assigned to the */
/* col_num() field of type FILE_POS. */
/* */
/* MAX_WORD 1 + the maximum length of a word storable in an */
/* object record, which includes all file path names */
/* too. It is reasonable to make this MAX_LINE, since */
/* a word longer than MAX_LINE cannot be read in. */
/* */
/* MAX_OBJECT_REC 1 + the maximum size of an object record, measured */
/* in ALIGNs. The value chosen should exceed */
/* ceiling( (wr + MAX_WORD - 4) / sizeof(ALIGN) ) */
/* where wr = sizeof(struct word_rec), so that words of */
/* length MAX_WORD-1 can be stored in an object record. */
/* */
/* MAX_BUFF 1 + the maximum length of a "standard buffer"; these */
/* buffers are used in a variety of places throughout */
/* the program for holding one line of a font file, */
/* one file path name, one symbol full name, etc. This */
/* may be increased immediately without limit. */
/* */
/* MAX_FONT The maximum number of sized fonts allowed. */
/* */
/* MAX_COLOUR The maximum number of distinct left parameters of */
/* @SetColour and @SetColor symbols allowed (after */
/* evaluation). */
/* */
/* MAX_TEXTURE The maximum number of distinct left parameters of */
/* the @SetTexture symbol allowed (after evaluation). */
/* */
/* MAX_LANGUAGE The maximum number of distinct languages allowed. */
/* This can be increased beyond 256 only by setting */
/* aside a larger word_language() field. */
/* */
/* MAX_LEX_STACK The maximum depth of @Includes and @Databases. This */
/* can be increased immediately by any small amount. */
/* */
/* MAX_CHARS The maximimum number of characters in a font. This */
/* cannot be increased easily. */
/* */
/* MAX_HCOPIES The maximimum number of copies of one running header */
/* that can appear correctly on one page. Can be */
/* increased to any small positive integer. */
/* */
/*****************************************************************************/
#define MAX_FULL_LENGTH 8388607 /* 2**23 - 1, about 148 metres */
#define MAX_SHORT_LENGTH 32767
#define MAX_FILES 65535
#define MAX_LINE 2048
#define MAX_WORD 2048
#define MAX_OBJECT_REC ceiling(sizeof(struct word_type)+MAX_WORD,sizeof(ALIGN))
#define MAX_BUFF 512
#define MAX_FONT 65535
#define MAX_COLOUR 65535
#define MAX_TEXTURE 65535
#define MAX_LANGUAGE 64
#define MAX_LEX_STACK 10
#define MAX_CHARS 256
#define MAX_HCOPIES 3
/*****************************************************************************/
/* */
/* Miscellaneous Macros */
/* */
/*****************************************************************************/
#define BOOLEAN unsigned
#define FALSE 0
#define TRUE 1
#define bool(x) (x ? AsciiToFull("TRUE") : AsciiToFull("FALSE") )
#define CHILD 0
#define PARENT 1
#define COLM 0
#define ROWM 1
#define dimen(x) (x == COLM ? AsciiToFull("COLM") : AsciiToFull("ROWM") )
#define nilobj ( (OBJECT) NULL )
#define null ( (FILE *) NULL )
#define find_max(a, b) ((a) < (b) ? (b) : (a))
#define find_min(a, b) ((a) < (b) ? (a) : (b))
#define ceiling(a, b) ( ((a) - 1)/(b) + 1 ) /* ceiling(a/b) */
#define is_odd(x) ( (x) & 1 ) /* TRUE if x is odd number */
/*@::Some straightforward typedefs@*******************************************/
/* */
/* typedef ALIGN - used for forcing record alignment. */
/* */
/*****************************************************************************/
typedef char *ALIGN;
/*****************************************************************************/
/* */
/* typedef FULL_LENGTH - an integer physical distance. */
/* */
/*****************************************************************************/
typedef int FULL_LENGTH;
/*****************************************************************************/
/* */
/* typedef SHORT_LENGTH - an short integer physical distance. */
/* */
/*****************************************************************************/
typedef short int SHORT_LENGTH;
/*****************************************************************************/
/* */
/* FONT_NUM - internal name for a font. */
/* */
/*****************************************************************************/
typedef short unsigned FONT_NUM;
/*****************************************************************************/
/* */
/* COLOUR_NUM - internal name for a colour. */
/* */
/*****************************************************************************/
typedef short unsigned COLOUR_NUM;
/*****************************************************************************/
/* */
/* TEXTURE_NUM - internal name for a texture. */
/* */
/*****************************************************************************/
typedef short unsigned TEXTURE_NUM;
/*****************************************************************************/
/* */
/* LANGUAGE_NUM - internal name for a language. */
/* */
/*****************************************************************************/
typedef unsigned LANGUAGE_NUM;
/*****************************************************************************/
/* */
/* MAPPING - internal name for a character mapping vector. */
/* */
/*****************************************************************************/
typedef unsigned MAPPING;
/*****************************************************************************/
/* */
/* LINE - a line from a database index file. */
/* */
/*****************************************************************************/
typedef char *LINE;
/*****************************************************************************/
/* */
/* typedef FULL_CHAR - one of the characters manipulated by Lout. */
/* */
/* This program does not deal with 7-bit ASCII characters. Instead, its */
/* characters are defined by the FULL_CHAR typedef, and could be anything */
/* from 7-bit ASCII to 8-bit ISO-LATIN-1 to 16-bit UNICODE and beyond. */
/* */
/* Unfortunately C favours signed 8-bit characters: literal strings are */
/* pointers to them, argv[] and the standard libraries assume them. We get */
/* around these problems by using our own library, including AsciiToFull() */
/* to convert an ASCII string (such as a C string) into a FULL_CHAR string. */
/* */
/* Formally this library appears in module z39.c; however since this */
/* implementation uses 8-bit unsigned characters, most of the routines */
/* can be implemented by macros containing type-cast calls to C standard */
/* library routines. These appear in the z39.c externs list below. */
/* */
/*****************************************************************************/
typedef unsigned char FULL_CHAR;
/*****************************************************************************/
/* */
/* typedef POINTER- name for type of generic pointer */
/* */
/*****************************************************************************/
typedef void *POINTER;
/*@::Character literals@******************************************************/
/* */
/* Character Literals */
/* */
/* The following macros ensure that no Lout source is ever compared to a */
/* literal character other than '\0': */
/* */
/*****************************************************************************/
#define CH_FLAG_ALTERR 'a' /* the -a command line flag */
#define CH_FLAG_CROSS 'c' /* the -c command line flag */
#define CH_FLAG_ENCPATH 'C' /* the -C command line flag */
#define CH_FLAG_DEBUG 'd' /* the -d command line flag */
#define CH_FLAG_DIRPATH 'D' /* the -D command line flag */
#define CH_FLAG_ERRFILE 'e' /* the -e command line flag */
#define CH_FLAG_EPSFIRST 'E' /* first letter of the -EPS flag */
#define CH_FLAG_FNTPATH 'F' /* the -F command line flag */
#define CH_FLAG_HYPHEN 'h' /* the -h command line flag */
#define CH_FLAG_HYPPATH 'H' /* the -H command line flag */
#define CH_FLAG_INCLUDE 'i' /* the -i command line flag */
#define CH_FLAG_INCPATH 'I' /* the -I command line flag */
#define CH_FLAG_NOKERN 'k' /* the -k command line flag */
#define CH_FLAG_NOCOLLATE 'l' /* the -l command line flag */
#define CH_FLAG_COLLATE 'L' /* the -L command line flag */
#define CH_FLAG_MEMCHECK 'm' /* the -m command line flag */
#define CH_FLAG_MEMCR 'M' /* the -M command line flag */
#define CH_FLAG_OUTFILE 'o' /* the -o command line flag */
#define CH_FLAG_PLAIN 'p' /* the -p command line flag */
#define CH_FLAG_FFPLAIN 'P' /* the -P command line flag */
#define CH_FLAG_SUPPRESS 's' /* the -s command line flag */
#define CH_FLAG_SAFE 'S' /* the -S command line flag */
#define CH_FLAG_USAGE 'u' /* the -u command line flag */
#define CH_FLAG_UNSAFE 'U' /* the -U command line flag */
#define CH_FLAG_VERSION 'V' /* the -V command line flag */
#define CH_FLAG_INITALL 'x' /* the -x command line flag */
#define CH_FLAG_OPTION '-' /* the -- command line flag */
#define CH_FLAG_WORDS 'w' /* the -w command line flag */
#define CH_FLAG_PDF 'Z' /* the -Z command line flag */
#define CH_SPACE ' ' /* space character */
/* #define CH_NEWLINE '\n'*/ /* the newline character */
#define CH_LF '\n' /* the line feed character */
#define CH_CR '\r' /* the carriage return character */
#define CH_SYMSTART '@' /* extra letter symbols may have */
#define CH_UNDERSCORE '_' /* extra letter symbols may have */
#define CH_QUOTE '"' /* the quote character */
#define CH_ZERO '0' /* the first digit character, zero */
#define CH_EIGHT '8' /* the last even digit character */
#define CH_NINE '9' /* the last odd digit character */
#define CH_INCGAP '+' /* begins an incrementing gap */
#define CH_DECGAP '-' /* begins a decrementing gap */
#define CH_MINUS '-' /* minus sign */
#define CH_HYPHEN '-' /* the hyphen character */
#define CH_NOBREAK 'u' /* `unbreakable' character for gaps */
#define CH_UNIT_CM 'c' /* unit of measurement: centimetres */
#define CH_UNIT_IN 'i' /* unit of measurement: inches */
#define CH_UNIT_PT 'p' /* unit of measurement: points */
#define CH_UNIT_EM 'm' /* unit of measurement: ems */
#define CH_UNIT_FT 'f' /* unit of measurement: fontsizes */
#define CH_UNIT_SP 's' /* unit of measurement: spacewidths */
#define CH_UNIT_VS 'v' /* unit of measurement: vspaces */
#define CH_UNIT_WD 'w' /* unit of measurement: follwidths */
#define CH_UNIT_BD 'b' /* unit of measurement: boundwidths */
#define CH_UNIT_RL 'r' /* unit of measurement: relwidths */
#define CH_UNIT_DG 'd' /* unit of measurement: degrees */
#define CH_UNIT_YU 'y' /* unit of measurement: y unit */
#define CH_UNIT_ZU 'z' /* unit of measurement: z unit */
#define CH_MODE_EDGE 'e' /* spacing mode: edge-to-edge */
#define CH_MODE_HYPH 'h' /* spacing mode: hyphenation */
#define CH_MODE_MARK 'x' /* spacing mode: mark-to-mark */
#define CH_MODE_OVER 'o' /* spacing mode: overstrike */
#define CH_MODE_KERN 'k' /* spacing mode: kerning */
#define CH_MODE_TABL 't' /* spacing mode: tabulation */
#define octaldigit(ch) ( (ch) >= '0' && (ch) <= '7' )
#define decimaldigit(ch) ( (ch) >= '0' && (ch) <= '9' )
#define digitchartonum(ch) ( (ch) - '0' )
#define numtodigitchar(ch) ( (ch) + '0' )
#define beginsbreakstyle(ch) ( (ch) >= 'a' && (ch) <= 'z' )
#define numericchar(ch) ( decimaldigit(ch) || (ch) == '.' )
/*@::String literals, FULL_CHAR type@*****************************************/
/* */
/* String Literals. */
/* */
/* All significant string literals are defined here. The program has many */
/* others, however: format strings, debug output, etc. */
/* */
/*****************************************************************************/
#define STR_EMPTY AsciiToFull("")
#define STR_QUOTE AsciiToFull("\"")
#define STR_ESCAPE AsciiToFull("\\")
#define STR_COMMENT AsciiToFull("#")
#define STR_SPACE AsciiToFull(" ")
#define STR_FORMFEED AsciiToFull("\f")
#define STR_TAB AsciiToFull("\t")
#define STR_LETTERS_LOWER AsciiToFull("abcdefghijklmnopqrstuvwxyz")
#define STR_LETTERS_UPPER AsciiToFull("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
#define STR_LETTERS_SYMSTART AsciiToFull("@")
#define STR_LETTERS_UNDERSCORE AsciiToFull("_")
#if CHAR_IN==0
#define STR_LETTERS_EXTRA0 AsciiToFull("")
#define STR_LETTERS_EXTRA1 AsciiToFull("")
#define STR_LETTERS_EXTRA2 AsciiToFull("")
#define STR_LETTERS_EXTRA3 AsciiToFull("")
#define STR_LETTERS_EXTRA4 AsciiToFull("")
#define STR_LETTERS_EXTRA5 AsciiToFull("")
#define STR_LETTERS_EXTRA6 AsciiToFull("")
#define STR_LETTERS_EXTRA7 AsciiToFull("")
#else
#define STR_LETTERS_EXTRA0 AsciiToFull("\300\301\302\303\304\305\306\307")
#define STR_LETTERS_EXTRA1 AsciiToFull("\310\311\312\313\314\315\316\317")
#define STR_LETTERS_EXTRA2 AsciiToFull("\320\321\322\323\324\325\326")
#define STR_LETTERS_EXTRA3 AsciiToFull("\330\331\332\333\334\335\336\337")
#define STR_LETTERS_EXTRA4 AsciiToFull("\340\341\342\343\344\345\346\347")
#define STR_LETTERS_EXTRA5 AsciiToFull("\350\351\352\353\354\355\356\357")
#define STR_LETTERS_EXTRA6 AsciiToFull("\360\361\362\363\364\365\366")
#define STR_LETTERS_EXTRA7 AsciiToFull("\370\371\372\373\374\375\376\377")
#endif
#define STR_STDIN AsciiToFull("-")
#define STR_STDOUT AsciiToFull("-")
#define STR_HYPHEN AsciiToFull("-")
#define STR_EPS AsciiToFull("EPS")
#define STR_POSTSCRIPT AsciiToFull("PostScript")
#define STR_PLAINTEXT AsciiToFull("PlainText")
#define STR_PDF AsciiToFull("PDF")
#define STR_ELSE AsciiToFull("else")
#define STR_NOCROSS AsciiToFull("??")
#define STR_BADKEY AsciiToFull("badkey")
#define STR_NONE AsciiToFull("none")
#define STR_NOCHAR AsciiToFull("-none-")
#define STR_ZERO AsciiToFull("0")
#define STR_PS_SPACENAME AsciiToFull("space")
#define STR_FONT_RECODE AsciiToFull("Recode")
#define STR_FONT_NORECODE AsciiToFull("NoRecode")
#define STR_COLOUR_NOCHANGE AsciiToFull("nochange")
#define STR_TEXTURE_NOCHANGE AsciiToFull("nochange")
#define STR_BREAK_HYPHEN AsciiToFull("hyphen")
#define STR_BREAK_NOHYPHEN AsciiToFull("nohyphen")
#define STR_BREAK_ADJUST AsciiToFull("adjust")
#define STR_BREAK_OUTDENT AsciiToFull("outdent")
#define STR_BREAK_RAGGED AsciiToFull("ragged")
#define STR_BREAK_CRAGGED AsciiToFull("cragged")
#define STR_BREAK_RRAGGED AsciiToFull("rragged")
#define STR_BREAK_ORAGGED AsciiToFull("oragged")
#define STR_BREAK_LINES AsciiToFull("lines")
#define STR_BREAK_CLINES AsciiToFull("clines")
#define STR_BREAK_RLINES AsciiToFull("rlines")
#define STR_BREAK_NOFIRST AsciiToFull("unbreakablefirst")
#define STR_BREAK_FIRST AsciiToFull("breakablefirst")
#define STR_BREAK_NOLAST AsciiToFull("unbreakablelast")
#define STR_BREAK_LAST AsciiToFull("breakablelast")
#define STR_BREAK_SETOUTDENT AsciiToFull("setoutdent")
#define STR_SPACE_LOUT AsciiToFull("lout")
#define STR_SPACE_COMPRESS AsciiToFull("compress")
#define STR_SPACE_SEPARATE AsciiToFull("separate")
#define STR_SPACE_TROFF AsciiToFull("troff")
#define STR_SPACE_TEX AsciiToFull("tex")
#define STR_SMALL_CAPS_ON AsciiToFull("smallcaps")
#define STR_SMALL_CAPS_OFF AsciiToFull("nosmallcaps")
#define STR_SMALL_CAPS_SET AsciiToFull("setsmallcaps")
#define STR_BASELINE_MARK AsciiToFull("baselinemark")
#define STR_XHEIGHT2_MARK AsciiToFull("xheight2mark")
#define STR_GAP_RJUSTIFY AsciiToFull("1rt")
#define STR_GAP_ZERO_HYPH AsciiToFull("0ch")
#define STR_SCALE_DOWN AsciiToFull("downifneeded")
/*@::GAP, STYLE@**************************************************************/
/* */
/* typedef GAP - what separates one object from another. */
/* */
/*****************************************************************************/
typedef struct
{ unsigned ospare : 7; /* left for other things in STYLE */
BOOLEAN onobreak : 1; /* TRUE if this gap is unbreakable */
BOOLEAN omark : 1; /* TRUE if this gap is marked */
BOOLEAN ojoin : 1; /* TRUE if joins exist across gap */
unsigned ounits : 3; /* units of measurement: fixed, etc */
unsigned omode : 3; /* spacing mode: edge-to-edge, etc */
SHORT_LENGTH owidth; /* width of the gap */
} GAP;
#define nobreak(x) (x).onobreak
#define mark(x) (x).omark
#define join(x) (x).ojoin
#define units(x) (x).ounits
#define mode(x) (x).omode
#define width(x) (x).owidth
#define SetGap(x, xnobreak, xmark, xjoin, xunits, xmode, xwidth) \
( nobreak(x) = xnobreak, mark(x) = xmark, join(x) = xjoin, \
units(x) = xunits, mode(x) = xmode, width(x) = xwidth \
)
#define GapCopy(x, y) \
( nobreak(x) = nobreak(y), mark(x) = mark(y), join(x) = join(y), \
units(x) = units(y), mode(x) = mode(y), width(x) = width(y) \
)
#define GapEqual(x, y) \
( nobreak(x) == nobreak(y) && mark(x) == mark(y) && join(x) == join(y) \
&& units(x) == units(y) && mode(x) == mode(y) && width(x) == width(y) \
)
#define ClearGap(x) SetGap(x, FALSE, FALSE, TRUE, FIXED_UNIT, NO_MODE, 0)
/*****************************************************************************/
/* */
/* typedef STYLE - information about how to break text, etc. */
/* */
/*****************************************************************************/
typedef struct
{ union {
GAP oline_gap; /* separation between lines */
struct {
BOOLEAN ovadjust : 1; /* @VAdjust in effect */
BOOLEAN ohadjust : 1; /* @HAdjust in effect */
BOOLEAN opadjust : 1; /* @PAdjust in effect */
unsigned osmall_caps : 1; /* small capitals */
unsigned ospace_style : 3; /* space style: lout, troff, tex, .. */
} oss1;
} osu1;
union {
GAP ospace_gap; /* separation induced by white space */
struct {
unsigned ohyph_style : 2; /* hyphenation off or on */
unsigned ofill_style : 2; /* fill lines with text off/on */
unsigned odisplay_style : 3; /* display lines adjusted, ragged... */
} oss2;
} osu2;
SHORT_LENGTH oyunit; /* value of y unit of measurement */
SHORT_LENGTH ozunit; /* value of z unit of measurement */
SHORT_LENGTH ooutdent_len; /* amount to outdent in outdent style*/
SHORT_LENGTH osmallcaps_len; /* size of small capitals */
FONT_NUM ofont; /* current font */
COLOUR_NUM ocolour; /* current colour */
TEXTURE_NUM otexture; /* current texture */
LANGUAGE_NUM olanguage : 6; /* current language */
BOOLEAN ooutline : 2; /* TRUE if outlining words */
BOOLEAN onobreakfirst : 1; /* no break after first line of para */
BOOLEAN onobreaklast : 1; /* no break after last line of para */
BOOLEAN obaselinemark : 1; /* baseline metrics */
} STYLE;
#define line_gap(x) (x).osu1.oline_gap
#define vadjust(x) (x).osu1.oss1.ovadjust
#define hadjust(x) (x).osu1.oss1.ohadjust
#define padjust(x) (x).osu1.oss1.opadjust
#define small_caps(x) (x).osu1.oss1.osmall_caps
#define space_style(x) (x).osu1.oss1.ospace_style
#define space_gap(x) (x).osu2.ospace_gap
#define hyph_style(x) (x).osu2.oss2.ohyph_style
#define fill_style(x) (x).osu2.oss2.ofill_style
#define display_style(x)(x).osu2.oss2.odisplay_style
#define font(x) (x).ofont
#define colour(x) (x).ocolour
#define texture(x) (x).otexture
#define outline(x) (x).ooutline
#define language(x) (x).olanguage
#define nobreakfirst(x) (x).onobreakfirst
#define nobreaklast(x) (x).onobreaklast
#define baselinemark(x) (x).obaselinemark
#define yunit(x) (x).oyunit
#define zunit(x) (x).ozunit
#define outdent_len(x) (x).ooutdent_len
#define smallcaps_len(x)(x).osmallcaps_len
#define StyleCopy(x, y) \
( GapCopy(line_gap(x), line_gap(y)), \
hyph_style(x) = hyph_style(y), \
fill_style(x) = fill_style(y), \
display_style(x) = display_style(y), \
small_caps(x) = small_caps(y), \
GapCopy(space_gap(x), space_gap(y)), \
font(x) = font(y), \
colour(x) = colour(y), \
texture(x) = texture(y), \
outline(x) = outline(y), \
language(x) = language(y), \
nobreakfirst(x) = nobreakfirst(y), \
nobreaklast(x) = nobreaklast(y), \
baselinemark(x) = baselinemark(y), \
vadjust(x) = vadjust(y), \
hadjust(x) = hadjust(y), \
padjust(x) = padjust(y), \
space_style(x) = space_style(y), \
yunit(x) = yunit(y), \
zunit(x) = zunit(y), \
outdent_len(x) = outdent_len(y), \
smallcaps_len(x) = smallcaps_len(y) \
)
/*@::CONSTRAINT, FILE_NUM, FILE_POS, LIST@************************************/
/* */
/* typedef CONSTRAINT - a size constraint. */
/* */
/*****************************************************************************/
typedef struct
{ FULL_LENGTH obc;
FULL_LENGTH obfc;
FULL_LENGTH ofc;
FULL_LENGTH osparec;
} CONSTRAINT;
#define bc(x) (x).obc
#define bfc(x) (x).obfc
#define fc(x) (x).ofc
#define sparec(x) (x).osparec
#define constrained(x) (bc(x) != MAX_FULL_LENGTH || \
bfc(x) != MAX_FULL_LENGTH || fc(x) != MAX_FULL_LENGTH)
#define SetConstraint(c,x,y,z) (bc(c) = (x), bfc(c) = (y), fc(c) = (z))
#define CopyConstraint(x, y) (bc(x) = bc(y), bfc(x) = bfc(y), fc(x) = fc(y))
#define FitsConstraint(b, f, c) (b <= bc(c) && b + f <= bfc(c) && f <= fc(c))
#define EqualConstraint(a, b) (bc(a)==bc(b) && bfc(a)==bfc(b) && fc(a)==fc(b) )
#define ig_fnum(x) bc(constraint(x))
#define ig_xtrans(x) bfc(constraint(x))
#define ig_ytrans(x) fc(constraint(x))
/*****************************************************************************/
/* */
/* typedef FILE_NUM - the internal representation of a file. */
/* */
/*****************************************************************************/
typedef unsigned short FILE_NUM;
#define NO_FILE 0
/*****************************************************************************/
/* */
/* typedef FILE_POS - a position in the set of input files. */
/* */
/*****************************************************************************/
typedef struct
{ unsigned char otype; /* space for object type field */
unsigned char orec_size; /* space for object record size */
FILE_NUM ofile_num; /* no. of file this record is from */
unsigned oline_num : 20; /* the line number of this record */
unsigned ocol_num : 12; /* column number this is related to */
} FILE_POS;
#define file_num(x) (x).ofile_num
#define col_num(x) (x).ocol_num
#define line_num(x) (x).oline_num
#define FposCopy(x, y) \
( file_num(x) = file_num(y), \
line_num(x) = line_num(y), \
col_num(x) = col_num(y) \
)
/*****************************************************************************/
/* */
/* typedef LIST - two pointers used to make one doubly linked list */
/* */
/*****************************************************************************/
typedef struct { union rec *opred, *osucc; } LIST;
/*@::FIRST_UNION@*************************************************************/
/* */
/* typedef FIRST_UNION - first eight bytes of object record (after LISTs). */
/* */
/* The fpos is overwritten in WORDs and QWORDs during FixAndPrintObject by */
/* the horizontal coordinate of the word, which has to be remembered. */
/* */
/*****************************************************************************/
typedef union
{
FILE_POS ofpos;
struct
{ unsigned char otype, orec_size;
int oword_save_mark;
} os11;
} FIRST_UNION;
/*@::SECOND_UNION, THIRD_UNION, FOURTH_UNION@*********************************/
/* */
/* typedef SECOND_UNION - eight bytes holding various flags etc. */
/* */
/*****************************************************************************/
typedef union
{
struct /* used by all tokens */
{ unsigned char oprecedence;
unsigned char ohspace, ovspace;
} os21;
struct /* used by WORD objects only, except underline used by all */
/* objects, including GAP_OBJ */
{ FONT_NUM oword_font;
COLOUR_NUM oword_colour;
TEXTURE_NUM oword_texture;
unsigned ounderline : 2; /* aligns with os23.underline */
BOOLEAN oword_outline : 1;
LANGUAGE_NUM oword_language : 6;
BOOLEAN oword_baselinemark : 1;
unsigned oword_hyph : 1;
} os22;
struct /* used by non-WORD objects */
{ unsigned short ofoll_or_prec;
unsigned short ocross_type; /* CROSS objects only */
unsigned short ounused_os23;
unsigned ounderline : 2; /* aligns with os22.underline */
BOOLEAN onon_blocking: 1;
BOOLEAN osized : 1;
BOOLEAN othreaded : 1;
BOOLEAN oexternal_hor: 1;
BOOLEAN oexternal_ver: 1;
BOOLEAN oblocked : 1;
BOOLEAN otrigger_ext : 1;
BOOLEAN omust_expand : 1;
BOOLEAN ogall_dir : 1;
BOOLEAN oopt_hyph : 1;
BOOLEAN oopt_gazumped: 1;
BOOLEAN oadjust_cat : 1;
BOOLEAN oforce_gall : 1;
/* don't forget ounderline from os22 applies in this union! */
} os23;
struct /* used by WORD and QWORD when they are database nodes */
{ unsigned short oleft_pos;
unsigned char oreading;
unsigned char oin_memory;
} os24;
struct /* used by WORD and QWORD when they are font records */
{ FONT_NUM ofont_num;
unsigned short ofont_page;
} os25;
struct /* used by symbol table entries */
{ unsigned char oprecedence;
BOOLEAN ois_tag : 1;
BOOLEAN ohas_tag : 1;
BOOLEAN ohas_lpar : 1;
BOOLEAN ohas_rpar : 1;
BOOLEAN oright_assoc : 1;
BOOLEAN ois_target : 1;
BOOLEAN ohas_target : 1;
BOOLEAN oforce_target : 1;
BOOLEAN ohas_body : 1;
BOOLEAN oindefinite : 1;
BOOLEAN orecursive : 1;
BOOLEAN ouses_extern_target : 1;
BOOLEAN ois_extern_target : 1;
BOOLEAN ois_key : 1;
BOOLEAN ohas_key : 1;
BOOLEAN odirty : 1;
BOOLEAN ovisible : 1;
BOOLEAN ohas_mark : 1;
BOOLEAN ohas_join : 1;
BOOLEAN ohas_par : 1;
BOOLEAN ouses_galley : 1;
BOOLEAN ohoriz_galley : 1;
BOOLEAN oimports_encl : 1;
} os26;
} SECOND_UNION;
/*****************************************************************************/
/* */
/* typedef THIRD_UNION - sixteen bytes usually holding an object size. */
/* */
/* In database records this space is used for a file pointer, or a pointer */
/* to a LINE array if the database is in-memory; in certain */
/* WORD objects used privately in z10.c it is used for a galley-position. */
/* In font records it holds the font size, space width, etc. In filter */
/* words it holds a pointer to the symbol being filtered. */
/* */
/*****************************************************************************/
typedef union
{
struct
{ FULL_LENGTH oback[2];
FULL_LENGTH ofwd[2];
} os31;
FILE *odb_filep;
LINE *odb_lines;
struct
{ FULL_LENGTH ofont_size;
FULL_LENGTH ofont_xheight2;
FULL_LENGTH ofont_spacewidth;
MAPPING ofont_mapping : 7;
BOOLEAN ofont_recoded : 1;
} os32;
struct
{ unsigned char ocs_type;
FILE_NUM ocs_fnum;
int ocs_pos;
int ocs_lnum;
} os33;
struct /* words used as file definitions */
{
unsigned int oline_count;
unsigned short ofile_number;
unsigned char otype_of_file;
unsigned char oused_suffix;
unsigned char oupdated;
unsigned char opath;
} os34;
union rec *ofilter_actual;
} THIRD_UNION;
/*****************************************************************************/
/* */
/* typedef FOURTH_UNION - twelve bytes holding a STYLE or CONSTRAINT. */
/* */
/*****************************************************************************/
typedef union
{
STYLE osave_style;
CONSTRAINT oconstraint;
} FOURTH_UNION;
/*@::OBJECT@******************************************************************/
/* */
/* typedef OBJECT - the general-purpose record used throughout Lout. */
/* */
/* This record is a complex union type. Which fields are defined in any */
/* given record depends on its type() tag field, as follows. But first */
/* we define some collections of fields that are commonly defined together. */
/* */
/* ALL - these fields are defined in all objects. They won't be mentioned */
/* again, but they are always there. */
/* */
/* type Tag field for the record */
/* rec_size Size of this record, in words (for memory allocator) */
/* succ Next element on list of parents, children */
/* pred Previous element on list of parents, children */
/* fpos Position in input file which gave rise to this */
/* object (could be null; overwritten by word_save_mark */
/* locally in FixAndPrintOjbect). It sub-fields are: */
/* */
/* file_num internal file number */
/* line_num line number in that file */
/* col_num column number on that line */
/* */
/* Lout attempts to put a meaningful fpos into every */
/* object, so that error messages related to that */
/* object can have meaningful line numbers. This has */
/* not been done in every case; it ought to be. */
/* */
/* TOKEN - these fields are defined for all objects that are input tokens. */
/* They may be overwritten after parsing is completed. */
/* */
/* precedence Precedence of this token (0 if has no parameters) */
/* hspace Horizontal space preceding this token */
/* vspace Vertical space preceding this token */
/* */
/* SIZED - these fields are defined for all objects that represent Lout */
/* objects and hence have a horizontal and vertical size. They */
/* will be undefined until after MinSize() is called on the object, */
/* and defined thereafter. */
/* */
/* back[COLM] Horizontal size to left of object's mark */
/* fwd[COLM] Horizontal size to right of object's mark */
/* back[ROWM] Vertical size above object's mark */
/* fwd[ROWM] Vertical size below object's mark */
/* */
/* GAP - a gap between two Lout objects. */
/* */
/* nobreak TRUE if gap is unbreakable (has u tag) */
/* mark TRUE if gap is marked (has ^ tag) */
/* join TRUE if a mark-joining gap (e.g. | not ||) */
/* units units of measurement (fixed, or r or d etc) */
/* mode gap mode (mark-to-mark, etc.) */
/* width width of gap in the given units */
/* */
/* STYLE - the style (attributes affecting the appearance) of an object. */
/* */
/* line_gap How much to separate lines by */
/* vadjust TRUE when @VAdjust is in effect */
/* hadjust TRUE when @HAdjust is in effect */
/* padjust TRUE when @PAdjust is in effect */
/* small_caps TRUE when small capitals wanted */
/* space_style Spacing style (lout, troff etc. from @Space) */
/* space_gap Object separation given a white space, i.e. "1s" */
/* hyph_style Hyphenation (undefined, off, on) */
/* fill_style Fill lines (undefined, off, on) */
/* display_style Display style for lines (adjust, centre, etc.) */
/* yunit Value of y unit of measurement */
/* zunit Value of z unit of measurement */
/* font Which internal font (including size) to use */
/* colour Which internal colour to use */
/* texture Which internal texture to use */
/* outline TRUE if outlining words rather than filling them */
/* language Which internal language to use */
/* nobreakfirst TRUE if break not allowed after first line of para */
/* nobreaklast TRUE if break not allowed before last line of para */
/* baselinemark TRUE if mark is to pass through character baseline */
/* */
/* CONSTRAINT - a constraint on how large some object is allowed to be, */
/* either horizontally or vertically */
/* */
/* bc how large back may be (MAX_FULL_LEN if infinite) */
/* fc how large fwd may be (MAX_FULL_LEN if infinite) */
/* bfc how large back + fwd may be (MAX_FULL_LEN if inf.) */
/* */
/* */
/* Here now is the list of all object types, what they represent, and */
/* what fields they contain. The list also indicates what children each */
/* object of the given type can expect to have. */
/* */
/* LINK - one link in the directed acyclic graph which is Lout's universal */
/* internal data structure. All the other types below are various */
/* types of nodes. Has ALL only (and no fpos) except see CROSS_SYM */
/* */
/* GAP_OBJ - a gap between two Lout objects */
/* */
/* gap The gap itself (type GAP) */
/* underline TRUE if continuous underlining crosses this gap */
/* save_* These fields used by optimum paragraph breaker only */
/* first child If the gap is not just white space, the gap object */
/* */
/* CLOSURE - an invocation of a user-defined symbol, not yet expanded */
/* */
/* TOKEN While still being parsed */
/* SIZED After sizing if indefinite (the sizes will be zero) */
/* save_style Style to print this invocation in when expanded */
/* actual The symbol table record defining this symbol */
/* threaded TRUE if symbol lies on a vertical thread */
/* external_ver TRUE if symbol is external in a vertical galley */
/* external_hor TRUE if symbol is external in a horizontal galley */
/* children PAR objects whose children are the actual parameters */
/* */
/* UNDER_REC - a temporary object inserted by FixAndPrintObject to help */
/* with working out continuous underlining */
/* */
/* back(COLM) Horizontal position of start of underline */
/* fwd(COLM) Horizontal position of end of underline */
/* word_font Font determining underline appearance */
/* word_colour The colour of the underline */
/* word_texture The texture of the underline */
/* */
/* PAGE_LABEL - a @PageLabel object */
/* */
/* TOKEN While still being parsed */
/* SIZED Indefinite, so all sizes will be zero */
/* first child The parameter of the @PageLabel object */
/* */
/* NULL_CLOS - a @Null object */
/* */
/* TOKEN While still being parsed */
/* SIZED Indefinite, so all sizes will be zero */
/* */
/* CROSS, FORCE_CROSS - a cross reference (or forcing cross reference) obj */
/* */
/* TOKEN While still being parsed */
/* SIZED Indefinite, so all sizes will be zero */
/* cross_type Type of cross reference (preceding, following, etc.) */
/* children The two parameters of the cross reference */
/* */
/* HEAD - the header record for a galley invocation */
/* */
/* force_gall TRUE if this is a forcing galley (i.e. "force into") */
/* actual The symbol table record defining this galley */
/* enclose_obj If galley has @Enclose, the enclose object */
/* limiter Helps decide whether to break off or scale if stuck */
/* opt_components If optimizing, the sequence of components */
/* opt_constraints If optimizing, the sequence of size constraints */
/* opt_counts If optimizing, the sequence of numbers of components */
/* In each child of opt_counts, comp_count has the num */
/* opt_comps_permitted number of components left before opt break */
/* opt_hyph If optimizing, whether to hyphenate the galley */
/* opt_gazumped If optimizing, galley has been gazumped recently */
/* gall_dir Promotion direction (COLM for horizontal galleys) */
/* ready_galls Galleys read in from cross reference database */
/* must_expand TRUE if must expand galley object even if indefinite */
/* sized TRUE after galley object has been sized */
/* foll_or_prec Direction of search for target (forward, back, etc.) */
/* whereto Symbol this galley is targeted at */
/* seen_nojoin TRUE if // op found within galley anywhere */
/* headers[i] each either nilobj or an ACAT of header components */
/* head_next which header[i] we will use next. */
/* */
/* SPLIT - a split object, used for building tables */
/* */
/* SIZED The size of the whole object */
/* first child An object whose horizontal size is the overall size */
/* second child An object whose vertical size is the overall size */
/* */
/* PAR - actual parameter of a symbol invocation (always child of CLOSURE) */
/* */
/* TOKEN While still being parsed */
/* actual The symbol table record defining this parameter */
/* first child A Lout object, the value of this parameter */
/* */
/* WORD, QWORD - a literal word, or a literal word entered in quotes "" */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the word */
/* word_font Font to print this word in (from style) */
/* word_colour Colour to print this word in (from style) */
/* word_texture texture to print this word in (from style) */
/* word_outline If TRUE, print this word in outline (from style) */
/* word_language Language (for hyphenation) of this word (from style) */
/* word_baselinemark TRUE if mark of this word goes through baseline */
/* underline TRUE if continuous underlining goes under this word */
/* word_hyph Hyphenation wanted for this word (from style) */
/* word_save_mark Coord of column mark, temporarily in FixAndPrint */
/* string[] The characters of the word, null-terminated */
/* */
/* WORD, QWORD when used as database header records */
/* */
/* string[] Database index file name */
/* reading TRUE if this database can be read from */
/* in_memory TRUE if this database's index is held in memory */
/* db_filep Pointer to database file (if not in_memory) */
/* left_pos Seek pos of 1st entry in db_filep (if not in_memory) */
/* db_lines Pointer to database index lines (if in_memory) */
/* db_lineslen Number of database index lines (if in_memory) */
/* first child List of symbols held in this database */
/* other children CROSS_SYM symbols of symbols in this database */
/* The *links* to these have the following fields: */
/* number An ID number for this sym in this db */
/* db_targ TRUE if sym is a galley target */
/* */
/* WORD, QWORD when used as font records (consult z37.c for more detail) */
/* */
/* string[] Font name */
/* font_num The number of this font */
/* font_page Number of most recent page using this font */
/* font_size Size of this font */
/* font_xheight2 Half-x height of this font */
/* font_spacewidth Preferred width of space between words in this font */
/* font_mapping The mapping to apply with this font */
/* font_recoded TRUE if font needs recoding in PostScript output */
/* */
/* WORD, QWORD when used in hash table to check whether crs defined twice */
/* */
/* db_checksym Symbol of the cross reference */
/* string[] Tag of the cross reference */
/* */
/* HSPANNER (VSPANNER) - An object that spans columns (rows) */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* spanner_broken TRUE after BreakObject() applied to this object */
/* spanner_count Number of columns (rows) spanned by this spanner */
/* spanner_sized Number of cols (rows) of this spanner sized so far */
/* spanner_fixed Number of cols (rows) of this spanner fixed so far */
/* save_mark used temporarily by FixAndPrintObject */
/* constraint Space available for this object as known to MinSize */
/* first child The object that is doing the spanning */
/* */
/* COL_THR (ROW_THR) - object representing all objects on a col (row) mark */
/* */
/* SIZED The horizontal (vertical) size only */
/* thr_state Tells whether thread is sized or not yet */
/* children The objects on the mark */
/* parents The parents of the children (one-to-one) */
/* */
/* ACAT - a paragraph (sequence of objects separated by & or white space) */
/* */
/* SIZED The size of the object */
/* save_style The style to print this paragraph in */
/* children The paragraph's objects and gaps (obj-gap-obj...obj) */
/* */
/* HCAT (VCAT) - a horizontal (vertical) sequence of objects */
/* */
/* SIZED The size of the object */
/* save_style The style to print this object in */
/* children The objects and gaps (obj-gap-obj...obj) */
/* adjust_cat Whether to perform adjustment (@VAdjust, etc.) */
/* */
/* WIDE (HIGH) - @Wide (@High) object */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* constraint The horizontal (vertical) size constraint */
/* first child The right parameter of this symbol */
/* */
/* HSHIFT (VSHIFT) - @HShift (@VShift) object */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* shift_type left, right etc. */
/* shift_gap The amount to shift */
/* first child The right parameter of this symbol */
/* */
/* HSCALE (VSCALE) - @HScale (@VScale) object */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* save_mark used temporarily by FixAndPrintObject */
/* constraint used temporarily by FixAndPrintObject */
/* first child The right parameter of this symbol */
/* */
/* SCALE - @Scale object */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* bc(constraint) The horizontal scale factor */
/* fc(constraint) The vertical scale factor */
/* save_mark used temporarily by FixAndPrintObject */
/* vert_sized TRUE if vertical size of object is known */
/* first child The right parameter of this symbol */
/* */
/* BEGIN_HEADER, SET_HEADER - @BeginHeaderComponent, @SetHeaderComponent */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object (will be 0) */
/* first child The gap for after this header (before manifesting) */
/* last child The right parameter of this symbol */
/* */
/* END_HEADER, CLEAR_HEADER - @EndHeaderComponent, @ClearHeaderComponent */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object (will be 0) */
/* */
/* ONE_COL (ONE_ROW) - @OneCol (@OneRow) object */
/* HCOVER (VCOVER) - @HCover (@VCover) object */
/* HCONTRACT (VCONTRACT) - @HContract (@VContract) object */
/* HEXPAND (VEXPAND) - @HExpand (@VExpand) object */
/* START_HSPAN, START_VSPAN - @StartHSpan, @StartVSpan */
/* START_HVSPAN - @StartHVSpan */
/* HSPAN (VSPAN) - @HSpan (@VSpan) symbols */
/* KERN_SHRINK - @KernShrink object */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* first child The right parameter of this symbol (if any) */
/* */
/* PADJUST (HADJUST, VADJUST) - @PAdjust (@HAdjust, @VAdjust) symbols */
/* */
/* TOKEN While still being parsed */
/* first child The right parameter of this symbol */
/* */
/* ROTATE - @Rotate symbol */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* save_mark used temporarily by FixAndPrintObject */
/* sparec(cons) Amount to rotate by (after manifesting) */
/* first child Amount to rotate by (before manifesting) */
/* last child The right parameter of this symbol */
/* */
/* BACKGROUND - @Background symbol */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* children The two parameters of this symbol */
/* */
/* GRAPHIC, PLAIN_GRAPHIC - @Graphic, @PlainGraphic symbols */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* save_mark used temporarily by FixAndPrintObject */
/* children The two parameters of this symbol */
/* */
/* LINK_SOURCE, LINK_DEST, LINK_URL - @LinkSource, @LinkDest, @URLLink */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* save_mark used temporarily by FixAndPrintObject */
/* children The two parameters of this symbol */
/* */
/* CASE - @Case symbol */
/* */
/* TOKEN While still being parsed */
/* first child The left parameter of @Case */
/* last child The right parameter (sequence of @Yield objects) */
/* */
/* VERBATIM (RAWVERBATIM) - @Verbatim (@RawVerbatim) symbol */
/* */
/* TOKEN While still being parsed */
/* first child The right parameter of this symbol */
/* */
/* FILTERED - object recording filtered Lout object */
/* */
/* filter_use_begin TRUE if filter enclosed in @Begin ... @End */
/* filter_actual The symbol this is an invocation of */
/* first child WORD containing file name of filter input file */
/* second child WORD containing file name of filter output file */
/* last child Scope snapshot for reading filter output file */
/* */
/* XCHAR - @Char symbol */
/* NEXT - @Next symbol */
/* ONE_OF - @OneOf symbol */
/* UNDERLINE - @Underline symbol */
/* */
/* TOKEN While still being parsed */
/* last child The right parameter of this symbol */
/* */
/* FONT, SPACE, BREAK - @Font, @Space, @Break symbols */
/* YUNIT, ZUNIT - @YUnit, @ZUnit symbols */
/* COLOUR, TEXTURE - @SetColour, @SetTexture symbols */
/* OUTLINE, LANGUAGE - @Outline, @Language symbols */
/* PLUS, MINUS, - @Plus, @Minus symbols */
/* MELD, COMMON, RUMP, INSERT - @Meld, @Common, @Rump, @Insert symbols */
/* OPEN, TAGGED - @Open, @Tagged symbols */
/* YIELD - @Yield symbol */
/* */
/* TOKEN While still being parsed */
/* first child The left parameter of this symbol */
/* last child The right parameter of this symbol */
/* */
/* ENV_OBJ - a Lout object with environment attached */
/* */
/* first child The Lout object */
/* last child Its environment (ENV object) */
/* */
/* ENV - environment of some Lout object */
/* */
/* children Components of the environment */
/* */
/* INCGRAPHIC, SINCGRAPHIC - @IncludeGraphic, @SysIncludeGraphic symbols */
/* */
/* TOKEN While still being parsed */
/* SIZED The size of the object */
/* save_mark used temporarily by FixAndPrintObject */
/* incgraphic_ok TRUE if file name pans out OK */
/* last child The right parameter of this symbol */
/* */
/* TSPACE, TJUXTA - tokens representing white space */
/* */
/* TOKEN While still being parsed */
/* mark(gap) FALSE */
/* join(gap) TRUE */
/* */
/* BEGIN - @Begin symbol */
/* */
/* TOKEN While still being parsed */
/* actual Symbol this @Begin starts parameter of */
/* */
/* END - @End symbol */
/* LBR, RBR - tokens representing left brace and right brace */
/* USE, NOT_REVEALED - @Use, @NotRevealed symbols */
/* GSTUB_EXT, GSTUB_INT, GSTUB_NONE - stubs for transferred galleys */
/* UNEXPECTED_EOF - unexpected end of file token */
/* INCLUDE, SYS_INCLUDE - @Include, @SysInclude symbols */
/* INCG_REPEATED, SINCG_REPEATED - */
/* @IncludeGraphicRepeated, @SysIncludeGraphicRepeated symbols */
/* PREPEND, SYS_PREPEND - @PrependGraphic, @SysPrependGraphic symbols */
/* ENVA, ENVB, ENVC, ENVD - @LEnvA, @LEnvB, @LEnvC, @LEnvD tokens only */
/* CENV, CLOS, LVIS, LUSE, LEO - @LCEnv, @LClos, @LVis, @LUse, @LEO tokens */
/* BACKEND - @BackEnd symbol */
/* CURR_LANG, CURR_FAMILY, CURR_FACE - @CurrLang, @CurrFamily, @CurrFace */
/* CURR_YUNIT, CURR_ZUNIT - @CurrYUnit, @CurrZUnit */
/* */
/* TOKEN While still being parsed */
/* */
/* DEAD - the index of a dead galley */
/* */
/* UNATTACHED - the index of an unattached galley */
/* */
/* actual The galley referred to */
/* non_blocking TRUE if this index should not block galley flushing */
/* blocked TRUE if this index is now blocking galley flushing */
/* pinpoint Exact anchor point of this index */
/* */
/* RECEPTIVE, RECEIVING - the index of a receptive or receiving object */
/* */
/* actual The object (symbol invocation) referred to */
/* trigger_externs TRUE is this index's galley has external galleys */
/* non_blocking TRUE if this index should not block galley flushing */
/* blocked TRUE if this index is now blocking galley flushing */
/* */
/* RECURSIVE - the index of a recursive but definite object */
/* */
/* actual The recursive symbol invocation referred to */
/* */
/* PRECEDES - an index recording a precedes/follows flushing constraint */
/* */
/* first child Other parent of this is the corresponding FOLLOWS */
/* */
/* FOLLOWS - an index recording a precedes/follows flushing constraint */
/* */
/* blocked TRUE if this index is now blocking galley flushing */
/* first child Other parent of this is the corresponding PRECEDES */
/* */
/* CROSS_LIT - not actually an object at all */
/* */
/* CROSS_PREC, CROSS_FOLL, CROSS_FOLL_OR_PREC - the index of a cross ref */
/* */
/* actual The cross reference referred to */
/* underline TRUE if continuous underline goes through here */
/* first child Equal to actual */
/* */
/* GALL_PREC, GALL_FOLL, GALL_FOLL_OR_PREC - index of a galley */
/* */
/* actual The galley referred to */
/* underline TRUE if continuous underline goes through here */
/* pinpoint Exact anchor point of this index */
/* */
/* GALL_TARG - index of the target of a galley */
/* */
/* actual The galley target (symbol invocation) referred to */
/* underline TRUE if continuous underline goes through here */
/* */
/* PAGE_LABEL_IND - the index of a @PageLabel object */
/* */
/* actual The @PageLabel object referred to */
/* underline TRUE if continuous underline goes through here */
/* first child Equal to actual */
/* */
/* SCALE_IND - the index of a @Scale symbol with empty left parameter */
/* COVER_IND - the index of an @HCover or @VCover object */
/* EXPAND_IND - the index of an @HExpand or @VExpand object */
/* */
/* actual The object referred to */
/* underline TRUE if continuous underline goes through here */
/* */
/* THREAD - a sequence of threads (basically local to Manifest) */
/* */
/* children The threads */
/* */
/* CROSS_SYM - a record of the cross reference state of some symbol */
/* */
/* target_state Whether we currently have a preceding target */
/* target_file Which file target is written to */
/* target_val Value of target (if target_state == SEEN_TARGET) */
/* target_seq A sequence number */
/* target_pos Seek position of target in target_file */
/* target_lnum Line number of target in target_file */
/* gall_seq Sequence number for galleys targeted to here */
/* symb The symbol table record of the symbol this is for */
/* gall_tag I forget! */
/* gall_tfile The most recent cr database file for this sym */
/* children Cross references and galleys waiting for a target */
/* These children have the following fields: */
/* */
/* string[] The sequence number */
/* cs_type The cross reference type */
/* cs_fnum File number where value written */
/* cs_pos File seek position */
/* cs_lnum File line number */
/* */
/* CR_ROOT - all CROSS_SYM objects are children of this singleton */
/* */
/* children All CROSS_SYM symbols */
/* */
/* MACRO - a symbol table entry for a symbol which is a macro */
/* LOCAL - a symbol table entry for a symbol which is a local symbol */
/* LPAR - a symbol table entry for a symbol which is a left parameter */
/* RPAR - a symbol table entry for a symbol which is a right parameter */
/* NPAR - a symbol table entry for a symbol which is a named parameter */
/* */
/* enclosing The symbol that this one is defined within, if any */
/* sym_body The symbol body (token sequence if MACRO) */
/* base_uses Local to symbol table, for calculating call graph */
/* uses Call graph info */
/* marker For call graph calculation */
/* imports The import list preceding this symbol, if any */
/* filter Child @Filter symbol, if any */
/* use_invocation A @Use clause containing this symbol, if any */
/* predefined If predefined symbol, its non-zero enum code */
/* has_compulsory Number of parameters with "compulsory" tag */
/* uses_count Number of times this symbol is used */
/* npar_code One-letter abbreviation for this NPAR */
/* cross_sym The CROSS_SYM record for this symbol, if any */
/* recursive TRUE if symbol is recursive */
/* has_body TRUE if symbol has a body parameter */
/* imports_encl TRUE if symbol imports the symbol enclosing itself */
/* right_assoc TRUE if this symbol has "associativity right" */
/* precedence The precedence of this symbol */
/* indefinite TRUE if this symbol is indefinite (e.g. receptive) */
/* recursive TRUE if symbol is recursive */
/* is_extern_target TRUE if symbol is the target of external galley */
/* uses_extern_target TRUE if symbol uses target of an external galley */
/* visible TRUE if symbol is exported */
/* uses_galley TRUE if symbol uses a galley */
/* horiz_galley if galley, ROWM if vertical, COLM if horizontal */
/* is_compulsory TRUE if this is a parameter with "compulsory" tag */
/* dirty TRUE if must copy this parameter, not link it */
/* has_par TRUE if this symbol has at least one parameter */
/* has_lpar TRUE if this symbol has a left parameter */
/* has_rpar TRUE if this symbol has a right or body parameter */
/* has_target TRUE if this symbol has a target (is a galley) */
/* force_target TRUE if this symbol has a forcing target */
/* is_target TRUE if this symbol is @Target, defining a target */
/* has_tag TRUE if this symbol has a @Tag parameter */
/* is_tag TRUE if this symbol is a @Tag parameter */
/* has_key TRUE if this symbol has a @Key parameter */
/* is_key TRUE if this symbol is a @Key parameter */
/* has_optimize TRUE if this symbol has an @Optimize parameter */
/* is_optimize TRUE if this symbol is an @Optimize parameter */
/* has_merge TRUE if this symbol has a @Merge parameter */
/* is_merge TRUE if this symbol is a @Merge parameter */
/* has_enclose TRUE if this symbol has an @Enclose parameter */
/* is_enclose TRUE if this symbol is an @Enclose parameter */
/* */
/* EXT_GALL - a record of an external galley, not actually read in yet */
/* */
/* eg_fnum Number of file read from */
/* eg_fpos Position in that file */
/* eg_lnum Line number in that file */
/* eg_cont Continuation (where to look for next galley) */
/* eg_symbol The symbol that is the target of this galley */
/* first child The galley tag */
/* second child The galley sequence string */
/* */
/* CR_LIST - a list of cross references */
/* */
/* children The cross-references */
/* */
/* SCOPE_SNAPSHOT - a snapshot of one element of the current scope stack */
/* */
/* ss_npars_only Value of npars_only in this element */
/* ss_vis_only Value of vis_only in this element */
/* ss_body_ok Value of body_ok in this element */
/* ss_suppress Value of suppress_visible in this element */
/* */
/* DISPOSED - a disposed object (available for reallocation) */
/* */
/*****************************************************************************/
typedef union rec
{
struct word_type /* all fields of WORD and QWORD, token and object */
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
THIRD_UNION ou3;
FULL_CHAR ostring[4];
} os1;
struct closure_type /* all fields of CLOSURE, both as token and object */
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
THIRD_UNION ou3;
FOURTH_UNION ou4;
union rec *oactual;
union
{ union rec *owhereto;
union rec *opinpoint;
FULL_LENGTH osave_mark;
} oux;
} os2;
struct head_type /* all fields of HEAD, both as token and object */
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
THIRD_UNION ou3;
FOURTH_UNION ou4;
union rec *oactual;
union
{ union rec *owhereto;
union rec *opinpoint;
FULL_LENGTH osave_mark;
} oux;
union rec *oready_galls;
union rec *oopt_components;
union rec *oopt_constraints;
union rec *oopt_counts;
union rec *olimiter;
union rec *oenclose_obj;
union rec *oheaders[MAX_HCOPIES];
int ohead_next;
int oopt_comps_permitted;
} os2a;
struct object_type /* the general OBJECT */
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
THIRD_UNION ou3;
FOURTH_UNION ou4;
} os3;
struct link_type /* LINK */
{ LIST olist[2];
unsigned char otype;
unsigned char onumber;
unsigned char odb_targ;
} os4;
struct gapobj_type /* GAP_OBJ */
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
GAP ogap;
int osave_badness; /* optimum paragraph breaker */
SHORT_LENGTH osave_space; /* optimum paragraph breaker */
SHORT_LENGTH osave_actual_gap; /* optimum paragraph breaker */
union rec *osave_prev; /* optimum paragraph breaker */
union rec *osave_cwid; /* optimum paragraph breaker */
} os5;
struct symbol_type
{ LIST olist[2];
FIRST_UNION ou1;
SECOND_UNION ou2;
union rec *oenclosing;
union rec *osym_body;
union rec *obase_uses;
union rec *ouses;
union rec *omarker;
union rec *ocross_sym;
union rec *oimports;
union rec *ofilter;
union rec *ouse_invocation;
short unsigned opredefined;
short unsigned ohas_compulsory;
unsigned char ouses_count;
unsigned char onpar_code;
BOOLEAN ois_optimize : 1;
BOOLEAN ohas_optimize : 1;
BOOLEAN ois_merge : 1;
BOOLEAN ohas_merge : 1;
BOOLEAN ois_enclose : 1;
BOOLEAN ohas_enclose : 1;
BOOLEAN ois_compulsory : 1;
} os6;
struct cr_type
{ LIST olist[2];
unsigned char otype;
unsigned char otarget_state;
FILE_NUM otarget_file;
union rec *otarget_val;
int otarget_seq;
int otarget_pos;
int otarget_lnum;
int ogall_seq;
union rec *osymb;
union rec *ogall_tag;
FILE_NUM ogall_tfile;
} os7;
struct ext_gall_type
{ LIST olist[2];
unsigned char otype;
FILE_NUM oeg_fnum;
int oeg_lnum;
long oeg_fpos;
long oeg_cont;
union rec *oeg_symbol;
} os8;
struct uses_type
{ union rec *oitem;
union rec *onext;
} os9;
#define USES_SIZE ceiling( sizeof(struct uses_type), sizeof(ALIGN) )
struct hash_entry_type
{ LIST olist[1];
} os10;
} *OBJECT;
/*@::macros for fields of OBJECT@*********************************************/
/* */
/* Macros for fields of OBJECT. */
/* */
/*****************************************************************************/
#define succ(x, dim) (x)->os1.olist[dim].osucc
#define pred(x, dim) (x)->os1.olist[dim].opred
#define type(x) (x)->os1.ou1.os11.otype
#define rec_size(x) (x)->os1.ou1.os11.orec_size
#define precedence(x) (x)->os1.ou2.os21.oprecedence
#define hspace(x) (x)->os1.ou2.os21.ohspace
#define vspace(x) (x)->os1.ou2.os21.ovspace
#define word_font(x) (x)->os1.ou2.os22.oword_font
#define spanner_count(x) word_font(x)
#define incg_type(x) word_font(x)
#define word_colour(x) (x)->os1.ou2.os22.oword_colour
#define word_texture(x) (x)->os1.ou2.os22.oword_texture
#define spanner_sized(x) word_colour(x)
#define word_outline(x) (x)->os1.ou2.os22.oword_outline
#define word_language(x) (x)->os1.ou2.os22.oword_language
#define word_baselinemark(x) (x)->os1.ou2.os22.oword_baselinemark
#define spanner_fixed(x) word_language(x)
#define spanner_broken(x) word_outline(x)
#define underline(x) (x)->os1.ou2.os22.ounderline
#define word_hyph(x) (x)->os1.ou2.os22.oword_hyph
#define filter_use_begin(x) (x)->os1.ou2.os22.oword_colour
#define ss_npars_only(x) word_font(x)
#define ss_vis_only(x) word_colour(x)
#define ss_body_ok(x) word_outline(x)
#define ss_suppress(x) word_language(x)
#define non_blocking(x) (x)->os1.ou2.os23.onon_blocking
#define vert_sized(x) non_blocking(x)
#define sized(x) (x)->os1.ou2.os23.osized
#define threaded(x) (x)->os1.ou2.os23.othreaded
#define external_ver(x) (x)->os1.ou2.os23.oexternal_ver
#define external_hor(x) (x)->os1.ou2.os23.oexternal_hor
#define blocked(x) (x)->os1.ou2.os23.oblocked
#define seen_nojoin(x) blocked(x)
#define trigger_externs(x) (x)->os1.ou2.os23.otrigger_ext
#define must_expand(x) (x)->os1.ou2.os23.omust_expand
#define gall_dir(x) (x)->os1.ou2.os23.ogall_dir
#define opt_hyph(x) (x)->os1.ou2.os23.oopt_hyph
#define opt_gazumped(x) (x)->os1.ou2.os23.oopt_gazumped
#define adjust_cat(x) (x)->os1.ou2.os23.oadjust_cat
#define force_gall(x) (x)->os1.ou2.os23.oforce_gall
#define cross_type(x) (x)->os1.ou2.os23.ocross_type
#define foll_or_prec(x) (x)->os1.ou2.os23.ofoll_or_prec
#define thr_state(x) cross_type(x)
#define incgraphic_ok(x) cross_type(x)
#define left_pos(x) (x)->os1.ou2.os24.oleft_pos
#define db_lineslen(x) left_pos(x)
#define reading(x) (x)->os1.ou2.os24.oreading
#define in_memory(x) (x)->os1.ou2.os24.oin_memory
#define is_tag(x) (x)->os1.ou2.os26.ois_tag
#define has_tag(x) (x)->os1.ou2.os26.ohas_tag
#define has_lpar(x) (x)->os1.ou2.os26.ohas_lpar
#define has_rpar(x) (x)->os1.ou2.os26.ohas_rpar
#define right_assoc(x) (x)->os1.ou2.os26.oright_assoc
#define is_target(x) (x)->os1.ou2.os26.ois_target
#define has_target(x) (x)->os1.ou2.os26.ohas_target
#define force_target(x) (x)->os1.ou2.os26.oforce_target
#define has_body(x) (x)->os1.ou2.os26.ohas_body
#define indefinite(x) (x)->os1.ou2.os26.oindefinite
#define recursive(x) (x)->os1.ou2.os26.orecursive
#define uses_extern_target(x) (x)->os1.ou2.os26.ouses_extern_target
#define is_extern_target(x) (x)->os1.ou2.os26.ois_extern_target
#define is_key(x) (x)->os1.ou2.os26.ois_key
#define has_key(x) (x)->os1.ou2.os26.ohas_key
#define dirty(x) (x)->os1.ou2.os26.odirty
#define visible(x) (x)->os1.ou2.os26.ovisible
#define has_mark(x) (x)->os1.ou2.os26.ohas_mark
#define has_join(x) (x)->os1.ou2.os26.ohas_join
#define has_par(x) (x)->os1.ou2.os26.ohas_par
#define uses_galley(x) (x)->os1.ou2.os26.ouses_galley
#define horiz_galley(x) (x)->os1.ou2.os26.ohoriz_galley
#define imports_encl(x) (x)->os1.ou2.os26.oimports_encl
#define fpos(x) (x)->os1.ou1.ofpos
#define word_save_mark(x) (x)->os1.ou1.os11.oword_save_mark
#define back(x, dim) (x)->os1.ou3.os31.oback[dim]
#define comp_count(x) back(x, COLM)
#define fwd(x, dim) (x)->os1.ou3.os31.ofwd[dim]
#define size(x, dim) (back(x, dim) + fwd(x, dim))
#define db_filep(x) (x)->os1.ou3.odb_filep
#define db_lines(x) (x)->os1.ou3.odb_lines
#define filter_actual(x) (x)->os1.ou3.ofilter_actual
#define db_checksym(x) filter_actual(x)
#define cs_type(x) (x)->os1.ou3.os33.ocs_type
#define cs_fnum(x) (x)->os1.ou3.os33.ocs_fnum
#define cs_pos(x) (x)->os1.ou3.os33.ocs_pos
#define cs_lnum(x) (x)->os1.ou3.os33.ocs_lnum
#define line_count(x) (x)->os1.ou3.os34.oline_count
#define file_number(x) (x)->os1.ou3.os34.ofile_number
#define type_of_file(x) (x)->os1.ou3.os34.otype_of_file
#define used_suffix(x) (x)->os1.ou3.os34.oused_suffix
#define updated(x) (x)->os1.ou3.os34.oupdated
#define path(x) (x)->os1.ou3.os34.opath
#define string(x) (x)->os1.ostring
#define save_style(x) (x)->os2.ou4.osave_style
#define constraint(x) (x)->os2.ou4.oconstraint
#define shift_type(x) width(space_gap(save_style(x)))
#define shift_gap(x) line_gap(save_style(x))
#define actual(x) (x)->os2.oactual
#define whereto(x) (x)->os2.oux.owhereto
#define pinpoint(x) (x)->os2.oux.opinpoint
#define save_mark(x) (x)->os2.oux.osave_mark
#define ready_galls(x) (x)->os2a.oready_galls
#define opt_components(x) (x)->os2a.oopt_components
#define opt_constraints(x) (x)->os2a.oopt_constraints
#define opt_counts(x) (x)->os2a.oopt_counts
#define limiter(x) (x)->os2a.olimiter
#define enclose_obj(x) (x)->os2a.oenclose_obj
#define headers(x, i) (x)->os2a.oheaders[i]
#define head_next(x) (x)->os2a.ohead_next
#define opt_comps_permitted(x) (x)->os2a.oopt_comps_permitted
#define number(x) (x)->os4.onumber
#define db_targ(x) (x)->os4.odb_targ
#define gap(x) (x)->os5.ogap
#define save_badness(x) (x)->os5.osave_badness
#define save_space(x) (x)->os5.osave_space
#define save_actual_gap(x) (x)->os5.osave_actual_gap
#define save_prev(x) (x)->os5.osave_prev
#define save_cwid(x) (x)->os5.osave_cwid
#define enclosing(x) (x)->os6.oenclosing
#define sym_body(x) (x)->os6.osym_body
#define base_uses(x) (x)->os6.obase_uses
#define uses(x) (x)->os6.ouses
#define marker(x) (x)->os6.omarker
#define cross_sym(x) (x)->os6.ocross_sym
#define imports(x) (x)->os6.oimports
#define filter(x) (x)->os6.ofilter
#define use_invocation(x) (x)->os6.ouse_invocation
#define predefined(x) (x)->os6.opredefined
#define has_compulsory(x) (x)->os6.ohas_compulsory
#define uses_count(x) (x)->os6.ouses_count
#define npar_code(x) (x)->os6.onpar_code
#define is_optimize(x) (x)->os6.ois_optimize
#define has_optimize(x) (x)->os6.ohas_optimize
#define is_merge(x) (x)->os6.ois_merge
#define has_merge(x) (x)->os6.ohas_merge
#define is_enclose(x) (x)->os6.ois_enclose
#define has_enclose(x) (x)->os6.ohas_enclose
#define is_compulsory(x) (x)->os6.ois_compulsory
#define target_state(x) (x)->os7.otarget_state
#define target_file(x) (x)->os7.otarget_file
/* #define cr_file(x) (x)->os7.ocr_file unused */
#define target_val(x) (x)->os7.otarget_val
#define target_seq(x) (x)->os7.otarget_seq
#define target_pos(x) (x)->os7.otarget_pos
#define target_lnum(x) (x)->os7.otarget_lnum
/* #define cr_seq(x) (x)->os7.ocr_seq unused */
#define gall_seq(x) (x)->os7.ogall_seq
#define symb(x) (x)->os7.osymb
#define gall_tag(x) (x)->os7.ogall_tag
#define gall_tfile(x) (x)->os7.ogall_tfile
#define eg_fnum(x) (x)->os8.oeg_fnum
#define eg_fpos(x) (x)->os8.oeg_fpos
#define eg_lnum(x) (x)->os8.oeg_lnum
#define eg_cont(x) (x)->os8.oeg_cont
#define eg_symbol(x) (x)->os8.oeg_symbol
#define item(x) (x)->os9.oitem
#define next(x) (x)->os9.onext
#define font_num(x) (x)->os1.ou2.os25.ofont_num
#define font_page(x) (x)->os1.ou2.os25.ofont_page
#define font_size(x) (x)->os1.ou3.os32.ofont_size
#define font_xheight2(x) (x)->os1.ou3.os32.ofont_xheight2
#define font_spacewidth(x) (x)->os1.ou3.os32.ofont_spacewidth
#define font_mapping(x) (x)->os1.ou3.os32.ofont_mapping
#define font_recoded(x) (x)->os1.ou3.os32.ofont_recoded
/*@::FONT_INFO@***************************************************************/
/* */
/* typedef FONT_INFO - information about font metrics etc. Really private */
/* but shared between z37.c and z24.c */
/* */
/*****************************************************************************/
struct metrics {
SHORT_LENGTH up;
SHORT_LENGTH down;
SHORT_LENGTH left;
SHORT_LENGTH right;
SHORT_LENGTH last_adjust;
};
typedef struct composite_rec {
FULL_CHAR char_code;
SHORT_LENGTH x_offset;
SHORT_LENGTH y_offset;
} COMPOSITE;
typedef struct font_rec {
struct metrics *size_table; /* metrics of sized fonts */
FULL_CHAR *lig_table; /* ligatures */
unsigned short *composite; /* non-zero means composite */
COMPOSITE *cmp_table; /* composites to build */
int cmp_top; /* length of cmp_table */
OBJECT font_table; /* record of sized fonts */
OBJECT original_face; /* face object of this font */
SHORT_LENGTH underline_pos; /* position of underline */
SHORT_LENGTH underline_thick; /* thickness of underline */
unsigned short *kern_table; /* first kerning chars */
FULL_CHAR *kern_chars; /* second kerning chars */
unsigned char *kern_value; /* points into kern_lengths */
SHORT_LENGTH *kern_sizes; /* sizes of kernings */
} FONT_INFO;
/*@::MAP_VEC@*****************************************************************/
/* */
/* typedef MAP_VEC - information about character mappings. Really private */
/* to z38.c but (for efficiency) shared with z37.c and z24.c */
/* */
/*****************************************************************************/
#define MAX_CHASH 353 /* size of hash table */
#define MAP_UPPERCASE 0 /* the map to upper case */
#define MAP_LOWERCASE 1 /* the map to lower case */
#define MAP_UNACCENTED 2 /* the map to unaccented */
#define MAP_ACCENT 3 /* the map to the accent character */
#define MAPS 4 /* the number of maps in each file */
typedef struct mapvec {
OBJECT file_name; /* name of file containing the vec */
FILE_NUM fnum; /* the file number of this file */
BOOLEAN seen_recoded; /* TRUE if a font recode was seen */
int last_page_printed; /* most recent page on which printed */
OBJECT name; /* PostScript name of encoding vec */
OBJECT vector[MAX_CHARS]; /* character names */
FULL_CHAR hash_table[MAX_CHASH]; /* character hash table for inverse */
FULL_CHAR map[MAPS][MAX_CHARS]; /* the mappings */
} *MAP_VEC;
/*@::BACK_END@****************************************************************/
/* */
/* typedef BACK_END - an OO-like record describing one back end */
/* */
/*****************************************************************************/
typedef struct back_end_rec {
int code; /* the code number of the back end */
FULL_CHAR *name; /* string name of the back end */
BOOLEAN scale_avail; /* TRUE if @Scale is available */
BOOLEAN rotate_avail; /* TRUE if @Rotate is available */
BOOLEAN graphic_avail; /* TRUE if @Graphic is available */
BOOLEAN incgraphic_avail; /* TRUE if @IncludeGraphic is avail. */
BOOLEAN plaingraphic_avail; /* TRUE if @PlainGraphic is avail. */
BOOLEAN fractional_spacing_avail; /* TRUE if fractional spacing avail. */
BOOLEAN uses_font_metrics; /* TRUE if actual font metrics used */
BOOLEAN colour_avail; /* TRUE if colour is available */
void (*PrintInitialize)(FILE *fp);
void (*PrintLength)(FULL_CHAR *buff, int length, int length_dim);
void (*PrintPageSetupForFont)(OBJECT face, int font_curr_page,
FULL_CHAR *font_name, FULL_CHAR *first_size_str);
void (*PrintPageResourceForFont)(FULL_CHAR *font_name, BOOLEAN first);
void (*PrintMapping)(MAPPING m);
void (*PrintBeforeFirstPage)(FULL_LENGTH h, FULL_LENGTH v, FULL_CHAR *label);
void (*PrintBetweenPages)(FULL_LENGTH h, FULL_LENGTH v, FULL_CHAR *label);
void (*PrintAfterLastPage)(void);
void (*PrintWord)(OBJECT x, int hpos, int vpos);
void (*PrintPlainGraphic)(OBJECT x, FULL_LENGTH xmk,FULL_LENGTH ymk,OBJECT z);
void (*PrintUnderline)(FONT_NUM fnum, COLOUR_NUM col, TEXTURE_NUM pat,
FULL_LENGTH xstart, FULL_LENGTH xstop, FULL_LENGTH ymk);
void (*CoordTranslate)(FULL_LENGTH xdist, FULL_LENGTH ydist);
void (*CoordRotate)(FULL_LENGTH amount);
void (*CoordScale)(float hfactor, float vfactor);
void (*SaveGraphicState)(OBJECT x);
void (*RestoreGraphicState)(void);
void (*PrintGraphicObject)(OBJECT x);
void (*DefineGraphicNames)(OBJECT x);
void (*SaveTranslateDefineSave)(OBJECT x,FULL_LENGTH xdist,FULL_LENGTH ydist);
void (*PrintGraphicInclude)(OBJECT x,FULL_LENGTH colmark,FULL_LENGTH rowmark);
void (*LinkSource)(OBJECT name, FULL_LENGTH llx, FULL_LENGTH lly,
FULL_LENGTH urx, FULL_LENGTH ury);
void (*LinkDest)(OBJECT name, FULL_LENGTH llx, FULL_LENGTH lly,
FULL_LENGTH urx, FULL_LENGTH ury);
void (*LinkURL)(OBJECT url, FULL_LENGTH llx, FULL_LENGTH lly,
FULL_LENGTH urx, FULL_LENGTH ury);
void (*LinkCheck)();
} *BACK_END;
/*@::object types@************************************************************/
/* */
/* OBJECT, TOKEN AND OTHER TYPES inhabiting type(x) and predefined(x) */
/* */
/* Key letters in the adjacent comment indicate where the tag is legal: */
/* */
/* t a token type, pushed on token stack */
/* o an object type (returned by reduce(), inserted by Manifest) */
/* i an index type (a child of a galley header other than an object) */
/* s a predefined symbol (some symbol table entry has this predefined()) */
/* n an indefinite object i.e. one which is ignored in catenation ops */
/* */
/*****************************************************************************/
#define LINK 0 /* a link between objects */
#define GAP_OBJ 1 /* o a gap object */
#define CLOSURE 2 /* to n a closure of a symbol */
#define UNDER_REC 3 /* o n record of underlining */
#define PAGE_LABEL 4 /* to sn @PageLabel */
#define NULL_CLOS 5 /* to sn @Null */
#define CROSS 6 /* to sn && (a cross reference obj) */
#define FORCE_CROSS 7 /* to sn &&& (a forcing cross ref.) */
#define LINK_DEST_NULL 8 /* to sn @LinkDest (null version) */
#define HEAD 9 /* o n a galley header */
#define SPLIT 10 /* o @Split */
#define PAR 11 /* o a parameter of a closure */
#define WORD 12 /* o a word */
#define QWORD 13 /* o a word (was quoted in i/p) */
#define HSPANNER 14 /* o a horizontal spanner */
#define VSPANNER 15 /* o a vertical spanner */
#define ROW_THR 16 /* o a row thread */
#define COL_THR 17 /* o a column thread */
#define ACAT 18 /* to s a sequence of &-ed objs */
#define HCAT 19 /* to s a sequence of |-ed objs */
#define VCAT 20 /* to s a sequence of /-ed objs */
#define BEGIN_HEADER 21 /* to s @BeginHeaderComponent */
#define END_HEADER 22 /* to s @EndHeaderComponent */
#define SET_HEADER 23 /* to s @SetHeaderComponent */
#define CLEAR_HEADER 24 /* to s @ClearHeaderComponent */
#define ONE_COL 25 /* to s @OneCol */
#define ONE_ROW 26 /* to s @OneRow */
#define WIDE 27 /* to s @Wide */
#define HIGH 28 /* to s @High */
#define HSHIFT 29 /* to s @HShift */
#define VSHIFT 30 /* to s @VShift */
#define HSCALE 31 /* to s @HScale */
#define VSCALE 32 /* to s @VScale */
#define HCOVER 33 /* to s @HCover */
#define VCOVER 34 /* to s @VCover */
#define SCALE 35 /* to s @Scale */
#define KERN_SHRINK 36 /* to s @KernShrink */
#define HCONTRACT 37 /* to s @HContract */
#define VCONTRACT 38 /* to s @VContract */
#define HLIMITED 39 /* to s @HLimited */
#define VLIMITED 40 /* to s @VLimited */
#define HEXPAND 41 /* to s @HExpand */
#define VEXPAND 42 /* to s @VExpand */
#define START_HSPAN 43 /* to s @StartHSpan */
#define START_VSPAN 44 /* to s @StartVSpan */
#define START_HVSPAN 45 /* to s @StartHVSpan */
#define HSPAN 46 /* to s @HSpan */
#define VSPAN 47 /* to s @VSpan */
#define PADJUST 48 /* to s @PAdjust */
#define HADJUST 49 /* to s @HAdjust */
#define VADJUST 50 /* to s @VAdjust */
#define ROTATE 51 /* to s @Rotate */
#define BACKGROUND 52 /* to s @Background */
#define CASE 53 /* to s @Case */
#define VERBATIM 54 /* to s @Verbatim */
#define RAW_VERBATIM 55 /* to s @RawVerbatim */
#define YIELD 56 /* to s @Yield */
#define BACKEND 57 /* to s @BackEnd */
#define FILTERED 58 /* to s filtered object (no name) */
#define XCHAR 59 /* to s @Char */
#define FONT 60 /* to s @Font */
#define SPACE 61 /* to s @Space */
#define YUNIT 62 /* to s @YUnit */
#define ZUNIT 63 /* to s @ZUnit */
#define BREAK 64 /* to s @Break */
#define UNDERLINE 65 /* to s @Underline */
#define COLOUR 66 /* to s @SetColour and @SetColor */
#define TEXTURE 67 /* to s @SetTexture */
#define OUTLINE 68 /* to s @Outline */
#define LANGUAGE 69 /* to s @Language */
#define CURR_LANG 70 /* to s @CurrLang */
#define CURR_FAMILY 71 /* to s @CurrFamily */
#define CURR_FACE 72 /* to s @CurrFace */
#define CURR_YUNIT 73 /* to s @CurrYUnit */
#define CURR_ZUNIT 74 /* to s @CurrZUnit */
#define COMMON 75 /* to s @Common */
#define RUMP 76 /* to s @Rump */
#define MELD 77 /* to s @Meld */
#define INSERT 78 /* to s @Insert */
#define ONE_OF 79 /* to s @OneOf */
#define NEXT 80 /* to s @Next */
#define PLUS 81 /* to s @Plus */
#define MINUS 82 /* to s @Minus */
#define ENV_OBJ 83 /* to s object with envt (no name) */
#define ENV 84 /* to s @LEnv */
#define ENVA 85 /* to s @LEnvA */
#define ENVB 86 /* to s @LEnvB */
#define ENVC 87 /* to s @LEnvC */
#define ENVD 88 /* to s @LEnvD */
#define CENV 89 /* to s @LCEnv */
#define CLOS 90 /* to s @LClos */
#define LVIS 91 /* to s @LVis */
#define LUSE 92 /* to s @LUse */
#define LEO 93 /* to s @LEO */
#define OPEN 94 /* to s @Open */
#define TAGGED 95 /* to s @Tagged */
#define INCGRAPHIC 96 /* to s @IncludeGraphic */
#define SINCGRAPHIC 97 /* to s @SysIncludeGraphic */
#define PLAIN_GRAPHIC 98 /* to s @PlainGraphic */
#define GRAPHIC 99 /* to s @Graphic */
#define LINK_SOURCE 100 /* to s @LinkSource */
#define LINK_DEST 101 /* to s @LinkDest */
#define LINK_URL 102 /* to s @URLLink */
#define TSPACE 103 /* t a space token, parser only */
#define TJUXTA 104 /* t a juxta token, parser only */
#define LBR 105 /* t s left brace token */
#define RBR 106 /* t s right brace token */
#define BEGIN 107 /* t s @Begin token */
#define END 108 /* t s @End token */
#define USE 109 /* t s @Use */
#define NOT_REVEALED 110 /* t s @NotRevealed */
#define GSTUB_NONE 111 /* t a galley stub, no rpar */
#define GSTUB_INT 112 /* t galley stub internal rpar */
#define GSTUB_EXT 113 /* t galley stub external rpar */
#define UNEXPECTED_EOF 114 /* t unexpected end of file */
#define INCLUDE 115 /* s @Include */
#define SYS_INCLUDE 116 /* s @SysInclude */
#define PREPEND 117 /* s @Prepend */
#define SYS_PREPEND 118 /* s @SysPrepend */
#define INCG_REPEATED 119 /* s @IncludeGraphicRepeated */
#define SINCG_REPEATED 120 /* s @SysIncludeGraphicRepeated */
#define DATABASE 121 /* s @Database */
#define SYS_DATABASE 122 /* s @SysDatabase */
#define DEAD 123 /* i a dead galley */
#define UNATTACHED 124 /* i an inner, unsized galley */
#define RECEPTIVE 125 /* i a receptive object index */
#define RECEIVING 126 /* i a receiving object index */
#define RECURSIVE 127 /* i a recursive definite obj. */
#define PRECEDES 128 /* i an ordering constraint */
#define FOLLOWS 129 /* i other end of ordering c. */
#define CROSS_LIT 130 /* i literal word cross-ref */
#define CROSS_FOLL 131 /* i following type cross-ref */
#define CROSS_FOLL_OR_PREC 132 /* i follorprec type cross-ref */
#define GALL_FOLL 133 /* i galley with &&following */
#define GALL_FOLL_OR_PREC 134 /* i galley with &&following */
#define CROSS_TARG 135 /* i value of cross-ref */
#define GALL_TARG 136 /* i target of these galleys */
#define GALL_PREC 137 /* i galley with &&preceding */
#define CROSS_PREC 138 /* i preceding type cross-ref */
#define PAGE_LABEL_IND 139 /* i index of PAGE_LABEL */
#define SCALE_IND 140 /* i index of auto SCALE */
#define COVER_IND 141 /* i index of HCOVER or VCOVER */
#define EXPAND_IND 142 /* i index of HEXPAND or VEXPD */
#define THREAD 143 /* a sequence of threads */
#define CROSS_SYM 144 /* cross-ref info */
#define CR_ROOT 145 /* RootCross */
#define MACRO 146 /* a macro symbol */
#define LOCAL 147 /* a local symbol */
#define LPAR 148 /* a left parameter */
#define NPAR 149 /* a named parameter */
#define RPAR 150 /* a right parameter */
#define EXT_GALL 151 /* an external galley */
#define CR_LIST 152 /* a list of cross references */
#define SCOPE_SNAPSHOT 153 /* a scope snapshot */
#define DISPOSED 154 /* a disposed record */
#define is_indefinite(x) ((x) >= CLOSURE && (x) <= HEAD)
#define is_header(x) ((x) >= BEGIN_HEADER && (x) <= CLEAR_HEADER)
#define is_definite(x) ((x) >= SPLIT && (x) <= LINK_URL)
#define is_par(x) ((x) >= LPAR && (x) <= RPAR)
#define is_index(x) ((x) >= DEAD && (x) <= EXPAND_IND)
#define is_type(x) ((x) >= LINK && (x) < DISPOSED)
#define is_word(x) ((x) == WORD || (x) == QWORD)
#define is_cross(x) ((x) == CROSS || (x) == FORCE_CROSS)
#define is_cat_op(x) (((x)>=ACAT && (x)<=VCAT) || (x)==TSPACE || (x)<=TJUXTA)
/*@::miscellaneous constants@*************************************************/
/* */
/* Miscellaneous globally defined constants */
/* */
/*****************************************************************************/
/* sides of a mark */
#define BACK 155 /* means lies to left of mark */
#define ON 156 /* means lies on mark */
#define FWD 157 /* means lies to right of mark */
/* constraint statuses */
#define PROMOTE 158 /* this component may be promoted */
#define CLOSE 159 /* must close dest before promoting */
#define BLOCK 160 /* cannot promote this component */
#define CLEAR 161 /* this constraint is now satisfied */
/* gap increment types */
#define GAP_ABS 162 /* absolute, e.g. 3p */
#define GAP_INC 163 /* increment, e.g. +3p */
#define GAP_DEC 164 /* decrement, e.g. -3p */
/* gap modes occupying mode(x) */
#define NO_MODE 0 /* for error detection: no mode */
#define EDGE_MODE 1 /* edge-to-edge spacing */
#define HYPH_MODE 2 /* edge-to-edge with hyphenation */
#define MARK_MODE 3 /* mark-to-mark spacing */
#define OVER_MODE 4 /* overstrike spacing */
#define KERN_MODE 5 /* kerning spacing */
#define TAB_MODE 6 /* tabulation spacing */
#define ADD_HYPH 7 /* temp value used by FillObject */
/* hyph_style(style) options */
#define HYPH_UNDEF 0 /* hyphenation option undefined */
#define HYPH_OFF 1 /* hyphenation off */
#define HYPH_ON 2 /* hyphenation on */
/* fill_style(style) options */
#define FILL_UNDEF 0 /* fill option undefined */
#define FILL_OFF 1 /* no filling of lines */
#define FILL_ON 2 /* fill lines with text */
/* underline(obj) options */
#define UNDER_UNDEF 0 /* underline undefined */
#define UNDER_OFF 1 /* no underlining */
#define UNDER_ON 2 /* underline this */
/* space_style(style) options */
#define SPACE_LOUT 0 /* interpret white space Lout's way */
#define SPACE_COMPRESS 1 /* compress multiple white spaces */
#define SPACE_SEPARATE 2 /* compress an separate */
#define SPACE_TROFF 3 /* interpret white space troff's way */
#define SPACE_TEX 4 /* interpret white space TeX's way */
/* display_style(style) options */
#define DISPLAY_UNDEF 0 /* display option undefined */
#define DISPLAY_ADJUST 1 /* adjust lines (except last) */
#define DISPLAY_OUTDENT 2 /* outdent lines (except first) */
#define DISPLAY_ORAGGED 3 /* outdent but don't adjust */
#define DISPLAY_LEFT 4 /* left-justify lines, no adjust */
#define DISPLAY_CENTRE 5 /* centre lines, no adjust */
#define DISPLAY_RIGHT 6 /* right-justify lines, no adjust */
#define DO_ADJUST 7 /* placed in ACATs when adjust need */
/* small_caps(style) options */
#define SMALL_CAPS_OFF 0 /* don't want small capitals */
#define SMALL_CAPS_ON 1 /* small capitals */
/* statuses of thread objects */
#define NOTSIZED 0 /* this thread object is not sized */
#define SIZED 1 /* thread is sized but not printed */
#define FINALSIZE 2 /* thread object size is now final */
/* file types */
#define SOURCE_FILE 0 /* input file from command line */
#define INCLUDE_FILE 1 /* @Include file */
#define DATABASE_FILE 2 /* database file */
#define INDEX_FILE 3 /* database index file */
#define FONT_FILE 4 /* font file */
#define PREPEND_FILE 5 /* PostScript prologue file */
#define HYPH_FILE 6 /* hyphenation file */
#define HYPH_PACKED_FILE 7 /* packed hyphenation file */
#define MAPPING_FILE 8 /* character mapping file */
#define FILTER_FILE 9 /* filter output file */
#define MAX_TYPES 10 /* number of file types */
/* path types (i.e. sequences of directories for file searching) */
#define SOURCE_PATH 0 /* path to search for source files */
#define INCLUDE_PATH 1 /* path for @Include files */
#define SYSINCLUDE_PATH 2 /* path for @SysInclude files */
#define DATABASE_PATH 3 /* path for @Database files */
#define SYSDATABASE_PATH 4 /* path for @SysDatabase files */
#define FONT_PATH 5 /* path for font metrics (AFM) files */
#define HYPH_PATH 6 /* path for hyphenation files */
#define MAPPING_PATH 7 /* path for mapping (LCM) files */
#define MAX_PATHS 8 /* number of mapping paths */
/* units of measurement */
#define NO_UNIT 0 /* no unit - for error detection */
#define FIXED_UNIT 1 /* inches, cm, points, ems, y, z */
#define FRAME_UNIT 2 /* b unit (frame widths) */
#define AVAIL_UNIT 3 /* r unit (available spaces) */
#define DEG_UNIT 4 /* d unit (degrees) */
#define NEXT_UNIT 5 /* w unit (inners) */
/* units of distance as multiples of the basic unit */
#define CM 567 /* 1 centimetre */
#define IN 1440 /* 1 inch */
#define EM 120 /* 1 em (= 1/12 inch) */
#define PT 20 /* 1 point (= 1/72 inch) */
#define FR 4096 /* virtual unit for frame units */
#define DG 128 /* virtual unit for degrees */
#define SF 128 /* virtual unit for @Scale factors */
/* default size of characters for the PLAINTEXT back end */
#define PLAIN_WIDTH 144 /* default char width, 10 per inch */
#define PLAIN_HEIGHT 240 /* default char height, 6 per inch */
/* precedences */
#define NO_PREC 0 /* lower than any precedence */
#define BEGIN_PREC 1 /* precedence of @Begin */
#define END_PREC 2 /* precedence of @End */
#define LBR_PREC 3 /* precedence of { */
#define RBR_PREC 4 /* precedence of } */
#define VCAT_PREC 5 /* precedence of / */
#define HCAT_PREC 6 /* precedence of | */
#define ACAT_PREC 7 /* precedence of & and white space */
#define MIN_PREC 10 /* minimum precedence of user ops */
#define MAX_PREC 100 /* maximim precedence of user ops */
#define DEFAULT_PREC 100 /* default precedence of user ops */
#define CROSSOP_PREC 101 /* precedence of && and &&& ops */
#define GAP_PREC 102 /* precedence of gap op after cat op */
#define JUXTA_PREC 103 /* precedence of juxtaposition & */
#define FILTER_PREC 104 /* precedence of filter symbol ops */
#define FORCE_PREC 105 /* higher than any precedence */
/* back ends */
#define POSTSCRIPT 0 /* PostScript back end */
#define PDF 1 /* PDF back end */
#define PLAINTEXT 2 /* plain text back end */
/* error types */
#define INTERN 0 /* internal error (i.e. bug) */
#define FATAL 1 /* fatal error, abort now */
#define WARN 2 /* warning, non-fatal */
/* status values returned by AttachGalley() */
#define ATTACH_KILLED 0
#define ATTACH_INPUT 1
#define ATTACH_NOTARGET 2
#define ATTACH_SUSPEND 3
#define ATTACH_NULL 4
#define ATTACH_ACCEPT 5
/* kinds of tidying up accepted by ReplaceWithTidy */
#define ACAT_TIDY 0
#define WORD_TIDY 1
#define PARA_TIDY 2
/* types of memory usage, used to debug memory consumption */
#define MEM_BINARY 0 /* the executable binary */
#define MEM_OBJECTS 1 /* objects currently in free list */
#define MEM_FONTS 2 /* fonts */
#define MEM_LEX 3 /* lexical analyser file buffers */
#define MEM_FILES 4 /* table of file names */
#define MEM_CROSSREF 5 /* table of file names */
#define MEM_PAGES 6 /* page grids (-p only) */
#define MEM_DBCHECK 7 /* database checks */
#define MEM_DB 8 /* in_memory database */
#define MEM_HYPH_PATS 9 /* hyphenation patterns */
#define MEM_CMAPS 10 /* character maps */
#define MEM_COLOUR_TAB 11 /* colour table */
#define MEM_TEXTURE_TAB 12 /* texture table */
#define MEM_LANG_TAB 13 /* language table */
#define MEM_USAGE_MAX 14 /* number of memory usage types */
/*@::Keywords@****************************************************************/
/* */
/* Keywords. */
/* */
/*****************************************************************************/
#define KW_START AsciiToFull("\\Start")
#define KW_PRINT AsciiToFull("\\Print")
#define KW_OPTGALL AsciiToFull("@OptGall")
#define KW_DEF AsciiToFull("def")
#define KW_FONTDEF AsciiToFull("@FontDef")
#define KW_FAMILY AsciiToFull("@Family")
#define KW_FACE AsciiToFull("@Face")
#define KW_NAME AsciiToFull("@Name")
#define KW_METRICS AsciiToFull("@Metrics")
#define KW_EXTRA_METRICS AsciiToFull("@ExtraMetrics")
#define KW_MAPPING AsciiToFull("@Mapping")
#define KW_RECODE AsciiToFull("@Recode")
#define KW_LANGDEF AsciiToFull("langdef")
#define KW_FORCE AsciiToFull("force")
#define KW_HORIZ AsciiToFull("horizontally")
#define KW_INTO AsciiToFull("into")
#define KW_EXTEND AsciiToFull("extend")
#define KW_IMPORT AsciiToFull("import")
#define KW_EXPORT AsciiToFull("export")
#define KW_PRECEDENCE AsciiToFull("precedence")
#define KW_ASSOC AsciiToFull("associativity")
#define KW_LEFT AsciiToFull("left")
#define KW_RIGHT AsciiToFull("right")
#define KW_BODY AsciiToFull("body")
#define KW_FILTER AsciiToFull("@Filter")
#define KW_FILTERIN AsciiToFull("@FilterIn")
#define KW_FILTEROUT AsciiToFull("@FilterOut")
#define KW_FILTERERR AsciiToFull("@FilterErr")
#define KW_MACRO AsciiToFull("macro")
#define KW_NAMED AsciiToFull("named")
#define KW_COMPULSORY AsciiToFull("compulsory")
#define KW_COMMON AsciiToFull("@Common")
#define KW_RUMP AsciiToFull("@Rump")
#define KW_MELD AsciiToFull("@Meld")
#define KW_INSERT AsciiToFull("@Insert")
#define KW_ONE_OF AsciiToFull("@OneOf")
#define KW_NEXT AsciiToFull("@Next")
#define KW_PLUS AsciiToFull("@Plus")
#define KW_MINUS AsciiToFull("@Minus")
#define KW_WIDE AsciiToFull("@Wide")
#define KW_HIGH AsciiToFull("@High")
#define KW_HSHIFT AsciiToFull("@HShift")
#define KW_VSHIFT AsciiToFull("@VShift")
#define KW_BEGIN_HEADER AsciiToFull("@BeginHeaderComponent")
#define KW_END_HEADER AsciiToFull("@EndHeaderComponent")
#define KW_SET_HEADER AsciiToFull("@SetHeaderComponent")
#define KW_CLEAR_HEADER AsciiToFull("@ClearHeaderComponent")
#define KW_ONE_COL AsciiToFull("@OneCol")
#define KW_ONE_ROW AsciiToFull("@OneRow")
#define KW_HSCALE AsciiToFull("@HScale")
#define KW_VSCALE AsciiToFull("@VScale")
#define KW_HCOVER AsciiToFull("@HCover")
#define KW_VCOVER AsciiToFull("@VCover")
#define KW_SCALE AsciiToFull("@Scale")
#define KW_KERN_SHRINK AsciiToFull("@KernShrink")
#define KW_HCONTRACT AsciiToFull("@HContract")
#define KW_VCONTRACT AsciiToFull("@VContract")
#define KW_HLIMITED AsciiToFull("@HLimited")
#define KW_VLIMITED AsciiToFull("@VLimited")
#define KW_HEXPAND AsciiToFull("@HExpand")
#define KW_VEXPAND AsciiToFull("@VExpand")
#define KW_STARTHVSPAN AsciiToFull("@StartHVSpan")
#define KW_STARTHSPAN AsciiToFull("@StartHSpan")
#define KW_STARTVSPAN AsciiToFull("@StartVSpan")
#define KW_HSPAN AsciiToFull("@HSpan")
#define KW_VSPAN AsciiToFull("@VSpan")
#define KW_PADJUST AsciiToFull("@PAdjust")
#define KW_HADJUST AsciiToFull("@HAdjust")
#define KW_VADJUST AsciiToFull("@VAdjust")
#define KW_ROTATE AsciiToFull("@Rotate")
#define KW_BACKGROUND AsciiToFull("@Background")
#define KW_INCGRAPHIC AsciiToFull("@IncludeGraphic")
#define KW_SINCGRAPHIC AsciiToFull("@SysIncludeGraphic")
#define KW_GRAPHIC AsciiToFull("@Graphic")
#define KW_LINK_SOURCE AsciiToFull("@LinkSource")
#define KW_LINK_DEST AsciiToFull("@LinkDest")
#define KW_LINK_URL AsciiToFull("@URLLink")
#define KW_PLAINGRAPHIC AsciiToFull("@PlainGraphic")
#define KW_VERBATIM AsciiToFull("@Verbatim")
#define KW_RAWVERBATIM AsciiToFull("@RawVerbatim")
#define KW_CASE AsciiToFull("@Case")
#define KW_YIELD AsciiToFull("@Yield")
#define KW_BACKEND AsciiToFull("@BackEnd")
#define KW_XCHAR AsciiToFull("@Char")
#define KW_FONT AsciiToFull("@Font")
#define KW_SPACE AsciiToFull("@Space")
#define KW_YUNIT AsciiToFull("@YUnit")
#define KW_ZUNIT AsciiToFull("@ZUnit")
#define KW_BREAK AsciiToFull("@Break")
#define KW_UNDERLINE AsciiToFull("@Underline")
#define KW_COLOUR AsciiToFull("@SetColour")
#define KW_COLOR AsciiToFull("@SetColor")
#define KW_TEXTURE AsciiToFull("@SetTexture")
#define KW_OUTLINE AsciiToFull("@Outline")
#define KW_LANGUAGE AsciiToFull("@Language")
#define KW_CURR_LANG AsciiToFull("@CurrLang")
#define KW_CURR_FAMILY AsciiToFull("@CurrFamily")
#define KW_CURR_FACE AsciiToFull("@CurrFace")
#define KW_CURR_YUNIT AsciiToFull("@CurrYUnit")
#define KW_CURR_ZUNIT AsciiToFull("@CurrZUnit")
#define KW_ENV AsciiToFull("@LEnv")
#define KW_ENVA AsciiToFull("@@A")
#define KW_ENVB AsciiToFull("@@B")
#define KW_ENVC AsciiToFull("@@C")
#define KW_ENVD AsciiToFull("@@D")
#define KW_CENV AsciiToFull("@@E")
#define KW_CLOS AsciiToFull("@LClos")
#define KW_LVIS AsciiToFull("@@V")
#define KW_LUSE AsciiToFull("@LUse")
#define KW_LEO AsciiToFull("@LEO")
#define KW_OPEN AsciiToFull("@Open")
#define KW_USE AsciiToFull("@Use")
#define KW_NOT_REVEALED AsciiToFull("@NotRevealed")
#define KW_TAGGED AsciiToFull("@Tagged")
#define KW_DATABASE AsciiToFull("@Database")
#define KW_SYSDATABASE AsciiToFull("@SysDatabase")
#define KW_INCLUDE AsciiToFull("@Include")
#define KW_SYSINCLUDE AsciiToFull("@SysInclude")
#define KW_INCG_REPEATED AsciiToFull("@IncludeGraphicRepeated")
#define KW_SINCG_REPEATED AsciiToFull("@SysIncludeGraphicRepeated")
#define KW_PREPEND AsciiToFull("@PrependGraphic")
#define KW_SYSPREPEND AsciiToFull("@SysPrependGraphic")
#define KW_TARGET AsciiToFull("@Target")
#define KW_FOLLOWING AsciiToFull("following")
#define KW_PRECEDING AsciiToFull("preceding")
#define KW_FOLL_OR_PREC AsciiToFull("foll_or_prec")
#define KW_NOW AsciiToFull("now")
#define KW_NULL AsciiToFull("@Null")
#define KW_PAGE_LABEL AsciiToFull("@PageLabel")
#define KW_GALLEY AsciiToFull("@Galley")
#define KW_FORCE_GALLEY AsciiToFull("@ForceGalley")
#define KW_INPUT AsciiToFull("@LInput")
#define KW_SPLIT AsciiToFull("@Split")
#define KW_TAG AsciiToFull("@Tag")
#define KW_KEY AsciiToFull("@Key")
#define KW_OPTIMIZE AsciiToFull("@Optimize")
#define KW_MERGE AsciiToFull("@Merge")
#define KW_ENCLOSE AsciiToFull("@Enclose")
#define KW_CROSS AsciiToFull("&&")
#define KW_FORCE_CROSS AsciiToFull("&&&")
#define KW_LBR AsciiToFull("{")
#define KW_RBR AsciiToFull("}")
#define KW_BEGIN AsciiToFull("@Begin")
#define KW_END AsciiToFull("@End")
#define KW_VCAT_NN AsciiToFull("//")
#define KW_VCAT_MN AsciiToFull("^//")
#define KW_VCAT_NJ AsciiToFull("/")
#define KW_VCAT_MJ AsciiToFull("^/")
#define KW_HCAT_NN AsciiToFull("||")
#define KW_HCAT_MN AsciiToFull("^||")
#define KW_HCAT_NJ AsciiToFull("|")
#define KW_HCAT_MJ AsciiToFull("^|")
#define KW_ACAT_NJ AsciiToFull("&")
#define KW_ACAT_MJ AsciiToFull("^&")
#define KW_MOMENT AsciiToFull("@Moment")
#define KW_SECOND AsciiToFull("@Second")
#define KW_MINUTE AsciiToFull("@Minute")
#define KW_HOUR AsciiToFull("@Hour")
#define KW_DAY AsciiToFull("@Day")
#define KW_MONTH AsciiToFull("@Month")
#define KW_YEAR AsciiToFull("@Year")
#define KW_CENTURY AsciiToFull("@Century")
#define KW_WEEKDAY AsciiToFull("@WeekDay")
#define KW_YEARDAY AsciiToFull("@YearDay")
#define KW_DAYLIGHTSAVING AsciiToFull("@DaylightSaving")
/*@::GetMem(), New(), NewWord()@**********************************************/
/* */
/* GetMem(x, siz, pos) */
/* New(x, typ) */
/* NewWord(x, typ, len, pos) */
/* */
/* Set x to point to a new record, of appropriate length (in ALIGNs). */
/* The New and NewWord versions initialise LIST, type and rec_size fields. */
/* NewWord must be used for WORD and QWORD objects. */
/* */
/*****************************************************************************/
#if DEBUG_ON
#define newcount zz_newcount++
#define freecount zz_listcount--
#define checknew(typ) \
{ assert1( is_type(typ), "New: type", Image(typ) ); \
assert( zz_lengths[typ] > 0, "New: zero length!" ); \
}
#define checkmem(z, typ) \
{ if( (MemCheck != 0) && ( (POINTER) z == MemCheck) ) \
fprintf(stderr, "%ld = New(%s)%s",(long)z,Image(type(z)),STR_NEWLINE); \
}
#else
#define newcount
#define freecount
#define checknew(typ)
#define checkmem(z, typ)
#endif
#define GetMem(x, siz, pos) \
{ newcount; \
if( (zz_size=(siz)) >= MAX_OBJECT_REC ) \
Error(1, 1, "word is too long", FATAL, pos); \
else if( zz_free[zz_size] == nilobj ) \
x = GetMemory(zz_size, pos); \
else \
{ x = zz_hold = zz_free[zz_size]; \
freecount; \
zz_free[zz_size] = pred(zz_hold, CHILD); \
} \
}
#define New(x, typ) \
{ checknew(typ); \
GetMem(zz_hold, zz_lengths[typ], no_fpos); \
type(zz_hold) = typ; \
checkmem(zz_hold, typ); \
x = pred(zz_hold, CHILD) = succ(zz_hold, CHILD) = \
pred(zz_hold, PARENT) = succ(zz_hold, PARENT) = zz_hold; \
}
#define NewWord(x, typ, len, pos) \
{ zz_size = sizeof(struct word_type) - 4 + ((len)+1)*sizeof(FULL_CHAR); \
/* NB the following line RESETS zz_size */ \
GetMem(zz_hold, ceiling(zz_size, sizeof(ALIGN)), pos); \
checkmem(zz_hold, typ); \
rec_size(zz_hold) = zz_size; \
type(zz_hold) = typ; \
x = pred(zz_hold, CHILD) = succ(zz_hold, CHILD) = \
pred(zz_hold, PARENT) = succ(zz_hold, PARENT) = zz_hold; \
}
/*@::PutMem(), Dispose()@*****************************************************/
/* */
/* PutMem(x, siz) */
/* Dispose(x) */
/* */
/* Dispose x, which is of size siz. Dispose works out the size itself. */
/* */
/*****************************************************************************/
#if DEBUG_ON
#define disposecount zz_disposecount++; zz_listcount++;
#define disposecheck \
{ assert( zz_size >= 0 && zz_size < MAX_OBJECT_REC, "Dispose: size" ); \
}
#define setdisposed \
{ if( (MemCheck != 0) && ((POINTER) zz_hold == MemCheck) ) \
fprintf(stderr, "Dispose(%ld, %s)%s", (long) zz_hold, \
Image(type(zz_hold)), STR_NEWLINE); \
type(zz_hold) = DISPOSED; \
}
#else
#define disposecount
#define disposecheck
#define setdisposed
#endif
#define PutMem(x, siz) \
{ disposecount; \
zz_hold = (x); \
zz_size = (siz); \
disposecheck; \
pred(zz_hold, CHILD) = zz_free[zz_size]; \
zz_free[zz_size] = zz_hold; \
}
#define Dispose(x) \
{ zz_hold = (x); \
PutMem(zz_hold, is_word(type(zz_hold)) ? \
rec_size(zz_hold) : zz_lengths[type(zz_hold)]); \
setdisposed; \
}
/*@::Append(), Delete()@******************************************************/
/* */
/* OBJECT Append(x, y, dir) */
/* */
/* Return the append of lists x and y (dir is PARENT or CHILD). */
/* */
/*****************************************************************************/
#define Append(x, y, dir) \
( zz_res = (x), zz_hold = (y), \
zz_hold == nilobj ? zz_res : \
zz_res == nilobj ? zz_hold : \
( zz_tmp = pred(zz_hold, dir), \
pred(zz_hold, dir) = pred(zz_res, dir), \
succ(pred(zz_res, dir), dir) = zz_hold, \
pred(zz_res, dir) = zz_tmp, \
succ(zz_tmp, dir) = zz_res \
) \
)
/*****************************************************************************/
/* */
/* OBJECT Delete(x, dir) */
/* */
/* Delete x from its dir list, and return succ(x, dir) or nilobj if none. */
/* */
/*****************************************************************************/
#define Delete(x, dir) \
( zz_hold = (x), \
succ(zz_hold, dir) == zz_hold ? nilobj : \
( zz_res = succ(zz_hold, dir), \
pred(zz_res, dir) = pred(zz_hold, dir), \
succ(pred(zz_hold, dir), dir) = zz_res, \
pred(zz_hold, dir) = succ(zz_hold, dir) = zz_hold, \
zz_res \
) \
)
#define Down(x) succ(x, CHILD)
#define NextDown(x) succ(x, CHILD)
#define LastDown(x) pred(x, CHILD)
#define PrevDown(x) pred(x, CHILD)
#define Up(x) succ(x, PARENT)
#define NextUp(x) succ(x, PARENT)
#define LastUp(x) pred(x, PARENT)
#define PrevUp(x) pred(x, PARENT)
#define Child(y, link) \
for( y = pred(link, PARENT); type(y) == LINK; y = pred(y, PARENT) )
#define CountChild(y, link, i) \
for( y=pred(link, PARENT), i=1; type(y)==LINK; y = pred(y, PARENT), i++ )
#define Parent(y, link) \
for( y = pred(link, CHILD); type(y) == LINK; y = pred(y, CHILD) )
/*@::UpDim(), DownDim(), Link(), DeleteLink(), etc.@**************************/
/* */
/* UpDim(x, dim) */
/* DownDim(x, dim) */
/* */
/* Returns the dim child or parent link of node x (dim == COLM or ROWM). */
/* */
/*****************************************************************************/
#define UpDim(x, dim) ( (dim) == COLM ? succ(x, PARENT) : pred(x, PARENT) )
#define DownDim(x, dim) ( (dim) == COLM ? succ(x, CHILD) : pred(x, CHILD) )
/*****************************************************************************/
/* */
/* OBJECT Link(x, y) */
/* */
/* Make y a child of x in the directed graph, using a new link. */
/* The link node is returned. */
/* */
/*****************************************************************************/
#define Link(x, y) \
{ New(xx_link, LINK); \
Append(xx_link, (x), CHILD); \
Append(xx_link, (y), PARENT); \
}
/*****************************************************************************/
/* */
/* DeleteLink(link) */
/* */
/* Cut the link between nodes x and y of the directed graph. */
/* Returns the link node of the next child of x, or x if none. */
/* */
/*****************************************************************************/
#define DeleteLink(link) \
{ xx_link = (link); \
Delete(xx_link, PARENT); \
Delete(xx_link, CHILD); \
Dispose(xx_link); \
}
/*****************************************************************************/
/* */
/* DisposeChild(link) */
/* */
/* Delete link, and if its child is thereby unattached, dispose it. */
/* */
/*****************************************************************************/
#define DisposeChild(link) \
{ xx_link = (link); \
xx_tmp = Delete(xx_link, PARENT); \
Delete(xx_link, CHILD); \
Dispose(xx_link); \
if( succ(xx_tmp, PARENT) == xx_tmp ) DisposeObject(xx_tmp); \
} /* end DisposeChild */
/*****************************************************************************/
/* */
/* MoveLink(link, x, dir) */
/* */
/* Move the dir end of link from wherever it is now to node x. */
/* */
/*****************************************************************************/
#define MoveLink(link, x, dir) \
( xx_link = (link), \
Delete(xx_link, 1 - (dir) ), \
Append(xx_link, (x), 1 - (dir) ) \
) /* end MoveLink */
/*@::TransferLinks(), DeleteNode(), etc.@*************************************/
/* */
/* TransferLinks(start_link, stop_link, dest_link) */
/* */
/* Move parent end of links start_link (inclusive) to stop_link (exclusive) */
/* to just before dest_link. */
/* */
/*****************************************************************************/
#define TransferLinks(start_link, stop_link, dest_link) \
{ OBJECT xxstart = start_link, xxstop = stop_link, xxdest = dest_link; \
if( xxstart != xxstop ) \
{ assert( type(xxstart) == LINK, "TransferLinks: start_link!" ); \
Append(xxstart, xxstop, CHILD); /* actually a split */ \
Append(xxstart, xxdest, CHILD); \
} \
}
/*****************************************************************************/
/* */
/* DeleteNode(x) */
/* */
/* Delete node x and every edge attaching to x. */
/* */
/*****************************************************************************/
#define DeleteNode(x) \
{ xx_hold = (x); \
while( Up(xx_hold) != xx_hold ) DeleteLink( Up(xx_hold) ); \
while( Down(xx_hold) != xx_hold ) DeleteLink( Down(xx_hold) ); \
Dispose(xx_hold); \
}
/*****************************************************************************/
/* */
/* MergeNode(x, y) */
/* */
/* Take all the children of y and make them children of x. */
/* Take all the parents of y and make them parents of x. Dispose y. */
/* */
/*****************************************************************************/
#define MergeNode(x, y) \
{ xx_res = (x); xx_hold = (y); \
xx_tmp = Delete(xx_hold, PARENT); \
Append(xx_res, xx_tmp, PARENT); \
xx_tmp = Delete(xx_hold, CHILD); \
Append(xx_res, xx_tmp, CHILD); \
Dispose(xx_hold); \
} /* end MergeNode */
/*****************************************************************************/
/* */
/* ReplaceNode(x, y) */
/* */
/* Move all the parent links of y to x. */
/* */
/*****************************************************************************/
#define ReplaceNode(x, y) \
( xx_tmp = Delete((y), PARENT), \
Append((x), xx_tmp, PARENT) \
) /* end ReplaceNode */
/*@::FirstDefinite(), NextDefinite(), etc.@***********************************/
/* */
/* FirstDefinite(x, link, y, jn) */
/* */
/* On input, x is an object and link and y are undefined. On output there */
/* are two cases: */
/* */
/* link != x. Then y is first definite child of x and link is its link; */
/* jn is TRUE iff all gaps on the way to link were joined. */
/* */
/* link == x. Then x has no definite child and y is undefined. */
/* */
/* A SPLIT object is considered to be definite if both its children are */
/* definite. This condition is returned by SplitIsDefinite. */
/* */
/*****************************************************************************/
#define FirstDefinite(x, link, y, jn) \
{ jn = TRUE; \
for( link = Down(x); link != x; link = NextDown(link) ) \
{ Child(y, link); \
if( type(y) == GAP_OBJ ) jn = jn && join(gap(y)); \
else if( type(y)==SPLIT ? SplitIsDefinite(y) : is_definite(type(y)))\
break; \
} \
} /* end FirstDefinite */
/*****************************************************************************/
/* */
/* NextDefinite(x, link, y) */
/* */
/* On input, x is an object and link is a link to one of its children; y */
/* is undefined. On output there are two cases: */
/* */
/* link != x. Then y is the first definite child of x following link, and */
/* link is changed to be the link of y. */
/* */
/* link == x. Then x has no definite child following link, and y remains */
/* undefined. */
/* */
/*****************************************************************************/
#define NextDefinite(x, link, y) \
{ for( link = NextDown(link); link != x; link = NextDown(link) ) \
{ Child(y, link); \
if( type(y) == SPLIT ? SplitIsDefinite(y) : is_definite(type(y)) ) \
break; \
} \
} /* end NextDefinite */
/*****************************************************************************/
/* */
/* NextDefiniteWithGap(x, link, y, g, jn) */
/* */
/* On input, x is an object and link is a link to one of its children; y */
/* and g are undefined. On output there are two cases: */
/* */
/* link != x. Then y is the first definite child of x following link, and */
/* link is changed to be the link of y. Also, g is defined */
/* to be the gap just before y; this must exist and is tested */
/* by an assert test; and jn is true iff all of the gaps on */
/* the way from old link to new link are join gaps. */
/* */
/* link == x. Then x has no definite child following link, and y and g */
/* remain undefined. */
/* */
/*****************************************************************************/
#define NextDefiniteWithGap(x, link, y, g, jn) \
{ g = nilobj; jn = TRUE; \
for( link = NextDown(link); link != x; link = NextDown(link) ) \
{ Child(y, link); \
if( type(y) == GAP_OBJ ) g = y, jn = jn && join(gap(y)); \
else if( type(y)==SPLIT ? SplitIsDefinite(y):is_definite(type(y)) ) \
{ \
debug2(DFS, D, " NextDefiniteWithGap at %s %s", \
Image(type(y)), EchoObject(y)); \
assert( g != nilobj, "NextDefiniteWithGap: g == nilobj!" ); \
break; \
} \
} \
} /* end NextDefiniteWithGap */
/*@@**************************************************************************/
/* */
/* LastDefinite(x, link, y) */
/* */
/* On input, x is an object and link and y are undefined. On output there */
/* are two cases: */
/* */
/* link != x. Then y is the last definite child of x and link is its link. */
/* */
/* link == x. Then x has no definite child and y is undefined. */
/* */
/* A SPLIT object is considered to be definite if both its children are */
/* definite. This condition is returned by SplitIsDefinite. */
/* */
/*****************************************************************************/
#define LastDefinite(x, link, y) \
{ for( link = LastDown(x); link != x; link = PrevDown(link) ) \
{ Child(y, link); \
if( type(y) == SPLIT ? SplitIsDefinite(y) : is_definite(type(y)) ) \
break; \
} \
} /* end LastDefinite */
/*****************************************************************************/
/* */
/* PrevDefinite(x, link, y) */
/* */
/* On input, x is an object and link is a link to one of its children; y */
/* is undefined. On output there are two cases: */
/* */
/* link != x. Then y is the first definite child of x preceding link, and */
/* link is changed to be the link of y. */
/* */
/* link == x. Then x has no definite child preceding link, and y remains */
/* undefined. */
/* */
/*****************************************************************************/
#define PrevDefinite(x, link, y) \
{ for( link = PrevDown(link); link != x; link = PrevDown(link) ) \
{ Child(y, link); \
if( type(y) == SPLIT ? SplitIsDefinite(y) : is_definite(type(y)) ) \
break; \
} \
} /* end PrevDefinite */
/*@::Module Declarations@*****************************************************/
/* */
/* MODULE DECLARATIONS */
/* */
/*****************************************************************************/
/***** z01.c Supervise **************************************/
extern int main(int argc, char *argv[]);
extern POINTER MemCheck;
extern OBJECT StartSym;
extern OBJECT GalleySym;
extern OBJECT ForceGalleySym;
extern OBJECT InputSym;
extern OBJECT PrintSym;
extern OBJECT FilterInSym;
extern OBJECT FilterOutSym;
extern OBJECT FilterErrSym;
extern OBJECT VerbatimSym;
extern OBJECT RawVerbatimSym;
extern OBJECT OptGallSym;
extern BACK_END BackEnd;
extern OBJECT CommandOptions;
extern BOOLEAN AllowCrossDb;
extern BOOLEAN UseCollate;
extern BOOLEAN InMemoryDbIndexes;
extern BOOLEAN Kern;
extern BOOLEAN SafeExecution;
extern BOOLEAN AltErrorFormat;
extern int TotalWordCount;
extern BOOLEAN InitializeAll;
#if LOCALE_ON
extern nl_catd MsgCat;
#endif
/***** z02.c Lexical Analyser **************************************/
extern BOOLEAN LexLegalName(FULL_CHAR *str);
extern void LexInit(void);
extern void LexPush(FILE_NUM x, int offs, int ftyp, int lnum, BOOLEAN same);
extern void LexPop(void);
extern long LexNextTokenPos(void);
extern OBJECT LexGetToken(void);
extern OBJECT LexScanVerbatim(FILE *fp, BOOLEAN end_stop, FILE_POS *err_pos,
BOOLEAN lessskip);
/***** z03.c File Service **************************************/
extern FILE_POS *no_fpos;
extern void InitFiles(void);
extern void AddToPath(int fpath, OBJECT dirname);
extern FILE_NUM DefineFile(FULL_CHAR *str, FULL_CHAR *suffix,
FILE_POS *xfpos, int ftype, int fpath);
extern FILE_NUM FirstFile(int ftype);
extern FILE_NUM NextFile(FILE_NUM i);
extern FILE_NUM FileNum(FULL_CHAR *str, FULL_CHAR *suffix);
extern FILE_NUM DatabaseFileNum(FILE_POS *xfpos);
extern FULL_CHAR *FileName(FILE_NUM fnum);
extern FULL_CHAR *FullFileName(FILE_NUM fnum);
extern int FileType(FILE_NUM fnum);
extern FULL_CHAR *EchoFilePos(FILE_POS *pos);
extern FULL_CHAR *EchoAltFilePos(FILE_POS *pos);
extern FULL_CHAR *EchoFileSource(FILE_NUM fnum);
extern FULL_CHAR *EchoFileLine(FILE_POS *pos);
extern FILE_POS *PosOfFile(FILE_NUM fnum);
extern FILE *OpenFile(FILE_NUM fnum, BOOLEAN check_ld, BOOLEAN check_lt);
extern FILE *OpenIncGraphicFile(FULL_CHAR *str, unsigned char typ,
OBJECT *full_name, FILE_POS *xfpos, BOOLEAN *compressed);
extern void FileSetUpdated(FILE_NUM fnum, int newlines);
extern int FileGetLineCount(FILE_NUM fnum);
extern BOOLEAN FileTestUpdated(FILE_NUM fnum);
/***** z04.c Token Service **************************************/
extern OBJECT NewToken(unsigned char xtype, FILE_POS *xfpos,
unsigned char xvspace, unsigned char xhspace,
unsigned char xprec, OBJECT xactual);
extern OBJECT CopyTokenList(OBJECT x, FILE_POS *pos);
extern FULL_CHAR *EchoCatOp(unsigned xtype, BOOLEAN xmark, BOOLEAN xjoin);
extern FULL_CHAR *EchoToken(OBJECT x);
/***** z05.c Read Definitions **************************************/
extern void ReadPrependDef(unsigned typ, OBJECT encl);
extern void ReadIncGRepeatedDef(unsigned typ, OBJECT encl);
extern void ReadDatabaseDef(unsigned typ, OBJECT encl);
extern void ReadDefinitions(OBJECT *token, OBJECT encl,
unsigned char res_type);
/***** z06.c Object Parser **************************************/
extern BOOLEAN InDefinitions;
extern void SetScope(OBJECT env, int *count, BOOLEAN vis_only);
extern void InitParser(FULL_CHAR *cross_db);
extern OBJECT Parse(OBJECT *token, OBJECT encl, BOOLEAN defs_allowed,
BOOLEAN transfer_allowed);
/***** z07.c Object Service **************************************/
extern BOOLEAN SplitIsDefinite(OBJECT x);
extern int DisposeObject(OBJECT x);
extern OBJECT MakeWord(unsigned typ, FULL_CHAR *str, FILE_POS *pos);
extern OBJECT MakeWordTwo(unsigned typ, FULL_CHAR *str1, FULL_CHAR *str2,
FILE_POS *pos);
extern OBJECT MakeWordThree(FULL_CHAR *s1, FULL_CHAR *s2, FULL_CHAR *s3);
extern OBJECT CopyObject(OBJECT x, FILE_POS *pos);
extern OBJECT InsertObject(OBJECT x, OBJECT *ins, STYLE *style);
extern OBJECT Meld(OBJECT x, OBJECT y);
extern BOOLEAN EqualManifested(OBJECT x, OBJECT y);
/***** z08.c Object Manifest **************************************/
extern OBJECT ReplaceWithTidy(OBJECT x, int one_word);
extern OBJECT Manifest(OBJECT x, OBJECT env, STYLE *style, OBJECT bthr[2],
OBJECT fthr[2], OBJECT *target, OBJECT *crs, BOOLEAN ok,
BOOLEAN need_expand, OBJECT *enclose, BOOLEAN fcr);
/***** z09.c Closure Expansion **************************************/
extern OBJECT SearchEnv(OBJECT env, OBJECT sym);
extern OBJECT SetEnv(OBJECT x, OBJECT y);
extern void AttachEnv(OBJECT env, OBJECT x);
extern OBJECT GetEnv(OBJECT x);
extern OBJECT DetachEnv(OBJECT x);
extern OBJECT ClosureExpand(OBJECT x, OBJECT env, BOOLEAN crs_wanted,
OBJECT *crs, OBJECT *res_env);
extern OBJECT ParameterCheck(OBJECT x, OBJECT env);
/***** z10.c Cross References **************************************/
extern void CrossInit(OBJECT sym);
extern OBJECT CrossMake(OBJECT sym, OBJECT val, int ctype);
extern OBJECT GallTargEval(OBJECT sym, FILE_POS *dfpos);
extern void CrossAddTag(OBJECT x);
extern OBJECT CrossExpand(OBJECT x, OBJECT env, STYLE *style,
OBJECT *crs, OBJECT *res_env);
extern void CrossSequence(OBJECT x);
extern void CrossClose(void);
/***** z11.c Style Service **************************************/
extern FULL_CHAR *EchoStyle(STYLE *style);
extern void SpaceChange(STYLE *style, OBJECT x);
extern void BreakChange(STYLE *style, OBJECT x);
extern void YUnitChange(STYLE *style, OBJECT x);
extern void ZUnitChange(STYLE *style, OBJECT x);
/***** z12.c Size Finder **************************************/
extern void SpannerAvailableSpace(OBJECT y, int dim, FULL_LENGTH *resb,
FULL_LENGTH *resf);
extern OBJECT MinSize(OBJECT x, int dim, OBJECT *extras);
/***** z13.c Object Breaking **************************************/
extern OBJECT BreakObject(OBJECT x, CONSTRAINT *c);
/***** z14.c Object Filling **************************************/
extern OBJECT FillObject(OBJECT x, CONSTRAINT *c, OBJECT multi,
BOOLEAN can_hyphenate, BOOLEAN allow_shrink,
BOOLEAN extend_unbreakable, BOOLEAN *hyph_used);
/***** z15.c Size Constraints **************************************/
extern void MinConstraint(CONSTRAINT *xc, CONSTRAINT *yc);
extern void SetSizeToMaxForwardConstraint(FULL_LENGTH *b, FULL_LENGTH *f,
CONSTRAINT *c);
extern void EnlargeToConstraint(FULL_LENGTH *b, FULL_LENGTH *f,
CONSTRAINT *c);
extern int ScaleToConstraint(FULL_LENGTH b, FULL_LENGTH f,
CONSTRAINT *c);
extern void InvScaleConstraint(CONSTRAINT *yc, FULL_LENGTH sf,
CONSTRAINT*xc);
extern void RotateConstraint(CONSTRAINT *c, OBJECT y, FULL_LENGTH angle,
CONSTRAINT *hc, CONSTRAINT *vc, int dim);
extern BOOLEAN InsertScale(OBJECT x, CONSTRAINT *c);
extern void Constrained(OBJECT x, CONSTRAINT *xc, int dim, OBJECT *why);
extern FULL_CHAR *EchoConstraint(CONSTRAINT *c);
extern void DebugConstrained(OBJECT x);
/***** z16.c Size Adjustments **************************************/
extern FULL_LENGTH FindShift(OBJECT x, OBJECT y, int dim);
extern void SetNeighbours(OBJECT link, BOOLEAN ratm, OBJECT *pg,
OBJECT *pdef, OBJECT *sg, OBJECT *sdef, int *side);
extern void AdjustSize(OBJECT x, FULL_LENGTH b, FULL_LENGTH f, int dim);
/***** z17.c Gap Widths **************************************/
extern void GetGap(OBJECT x, STYLE *style, GAP *res_gap,
unsigned *res_inc);
extern FULL_LENGTH MinGap(FULL_LENGTH a, FULL_LENGTH b, FULL_LENGTH c, GAP *xgap);
extern FULL_LENGTH ExtraGap(FULL_LENGTH a, FULL_LENGTH b, GAP *xgap, int dir);
extern FULL_LENGTH ActualGap(FULL_LENGTH a, FULL_LENGTH b, FULL_LENGTH c,
GAP *xgap, FULL_LENGTH f, FULL_LENGTH mk);
extern FULL_CHAR *EchoGap(GAP *xgap);
/***** z18.c Galley Transfer **************************************/
extern STYLE InitialStyle;
extern OBJECT InitialEnvironment;
extern void TransferInit(OBJECT InitEnv);
extern OBJECT TransferBegin(OBJECT x);
extern void TransferComponent(OBJECT x);
extern void TransferEnd(OBJECT x);
extern void TransferClose(void);
/***** z19.c Galley Attaching **************************************/
extern void DetachGalley(OBJECT hd);
extern OBJECT SearchGalley(OBJECT start, OBJECT sym, BOOLEAN forwards,
BOOLEAN subgalleys, BOOLEAN closures, BOOLEAN input);
extern int AttachGalley(OBJECT hd, OBJECT *inners, OBJECT *suspend_pt);
/***** z20.c Galley Flushing **************************************/
extern FULL_CHAR *DebugInnersNames(OBJECT inners);
extern void FlushGalley(OBJECT hd);
/*** z21.c Galley Maker **************************************/
extern void SizeGalley(OBJECT hd, OBJECT env, BOOLEAN rows,
BOOLEAN joined, BOOLEAN nonblock, BOOLEAN trig,
STYLE *style, CONSTRAINT *c, OBJECT target,
OBJECT *dest_index, OBJECT *recs, OBJECT *inners,
OBJECT enclose);
/*** z22.c Galley Service **************************************/
extern void ClearHeaders(OBJECT hd);
extern void Interpose(OBJECT z, int typ, OBJECT x, OBJECT y);
extern void FlushInners(OBJECT inners, OBJECT hd);
extern void ExpandRecursives(OBJECT recs);
extern void HandleHeader(OBJECT hd, OBJECT header);
extern void Promote(OBJECT hd, OBJECT stop_link, OBJECT dest_index,
BOOLEAN join_after);
extern void KillGalley(OBJECT hd, BOOLEAN optimize);
extern void FreeGalley(OBJECT hd, OBJECT stop_link, OBJECT *inners,
OBJECT relocate_link, OBJECT sym);
extern void SetTarget(OBJECT hd);
extern int CheckComponentOrder(OBJECT preceder, OBJECT follower);
/***** z23.c Galley Printer **************************************/
extern OBJECT FixAndPrintObject(OBJECT x, FULL_LENGTH xmk, FULL_LENGTH xb,
FULL_LENGTH xf, int dim, BOOLEAN suppress, FULL_LENGTH pg,
int count, FULL_LENGTH *actual_back, FULL_LENGTH *actual_fwd);
/***** z24.c Print Service **************************************/
extern char *EightBitToPrintForm[];
/***** z25.c Object Echo **************************************/
extern FULL_CHAR *EchoObject(OBJECT x);
extern void DebugObject(OBJECT x);
extern FULL_CHAR *EchoIndex(OBJECT index);
extern void DebugGalley(OBJECT hd, OBJECT pinpt, int indent);
/***** z26.c Echo Service **************************************/
extern void BeginString(void);
extern void AppendString(FULL_CHAR *str);
extern FULL_CHAR *EndString(void);
extern FULL_CHAR *EchoLength(int len);
extern FULL_CHAR *Image(unsigned int c);
extern void SetLengthDim(int dim);
/***** z27.c Debug Service **************************************/
#if DEBUG_ON
extern void DebugInit(FULL_CHAR *str);
extern void Debug(int category, int urgency, char *str, ...);
extern void ProfileOn(char *str);
extern void ProfileOff(char *str);
extern void ProfilePrint(void);
#endif
/***** z28.c Error Service **************************************/
extern void ErrorInit(FULL_CHAR *str);
extern BOOLEAN ErrorSeen(void);
extern void EnterErrorBlock(BOOLEAN ok_to_print);
extern void LeaveErrorBlock(BOOLEAN commit);
extern void CheckErrorBlocks(void);
extern POINTER Error(int set_num, int msg_num, char *str, int etype,
FILE_POS *pos, ...);
/***** z29.c Symbol Table **************************************/
extern void InitSym(void);
extern void PushScope(OBJECT x, BOOLEAN npars, BOOLEAN vis);
extern void PopScope(void);
extern void SuppressVisible(void);
extern void UnSuppressVisible(void);
extern void SuppressScope(void);
extern void UnSuppressScope(void);
extern void SwitchScope(OBJECT sym);
extern void UnSwitchScope(OBJECT sym);
extern void BodyParAllowed(void);
extern void BodyParNotAllowed(void);
extern OBJECT GetScopeSnapshot(void);
extern void LoadScopeSnapshot(OBJECT ss);
extern void ClearScopeSnapshot(OBJECT ss);
extern OBJECT InsertSym(FULL_CHAR *str, unsigned char xtype,
FILE_POS *xfpos, unsigned char xprecedence,
BOOLEAN xindefinite, BOOLEAN xrecursive,
unsigned xpredefined, OBJECT xenclosing, OBJECT xbody);
extern void InsertAlternativeName(FULL_CHAR *str, OBJECT s,
FILE_POS *xfpos);
extern OBJECT SearchSym(FULL_CHAR *str, int len);
extern FULL_CHAR *SymName(OBJECT s);
extern FULL_CHAR *FullSymName(OBJECT x, FULL_CHAR *str);
extern OBJECT ChildSym(OBJECT s, unsigned typ);
extern OBJECT ChildSymWithCode(OBJECT s, unsigned char code);
extern void CheckSymSpread(void);
extern void DeleteEverySym(void);
extern void DebugScope(void);
/***** z30.c Symbol Uses **************************************/
extern void InsertUses(OBJECT x, OBJECT y);
extern void FlattenUses(void);
extern BOOLEAN SearchUses(OBJECT x, OBJECT y);
extern OBJECT FirstExternTarget(OBJECT sym, OBJECT *cont);
extern OBJECT NextExternTarget(OBJECT sym, OBJECT *cont);
/***** z31.c Memory Allocator **************************************/
extern void DebugRegisterUsage(int typ, int delta_num, int delta_size);
extern void DebugMemory(void);
extern void MemInit(void);
extern OBJECT GetMemory(int siz, FILE_POS *pos);
extern OBJECT zz_free[];
extern unsigned char zz_lengths[];
extern int zz_newcount;
extern int zz_disposecount;
extern int zz_listcount;
extern OBJECT zz_hold;
extern OBJECT zz_tmp;
extern OBJECT zz_res;
extern int zz_size;
extern OBJECT xx_link, xx_tmp;
extern OBJECT xx_hold, xx_res;
/***** z32.c Counter Service **********************************/
extern OBJECT Next(OBJECT x, int inc, BOOLEAN *done);
/***** z33.c Database Service **************************************/
extern OBJECT OldCrossDb;
extern OBJECT NewCrossDb;
extern OBJECT DbCreate(OBJECT x);
extern void DbInsert(OBJECT db, BOOLEAN gall, OBJECT sym, FULL_CHAR *tag,
FILE_POS *tagfpos, FULL_CHAR *seq, FILE_NUM dfnum,
long dfpos, int dlnum, BOOLEAN check);
extern void DbConvert(OBJECT db, BOOLEAN full_name);
extern void DbClose(OBJECT db);
extern OBJECT DbLoad(OBJECT stem, int fpath, BOOLEAN create, OBJECT symbs,
BOOLEAN in_memory);
extern BOOLEAN DbRetrieve(OBJECT db, BOOLEAN gall, OBJECT sym,
FULL_CHAR *tag, FULL_CHAR *seq, FILE_NUM *dfnum,
long *dfpos, int *dlnum, long *cont);
extern BOOLEAN DbRetrieveNext(OBJECT db, BOOLEAN *gall, OBJECT *sym,
FULL_CHAR *tag, FULL_CHAR *seq, FILE_NUM *dfnum,
long *dfpos, int *dlnum, long *cont);
/***** z34.c Rotation Service **************************************/
extern void RotateSize(FULL_LENGTH *xcb, FULL_LENGTH *xcf,
FULL_LENGTH *xrb, FULL_LENGTH *xrf, OBJECT y,
FULL_LENGTH theta);
/***** z35.c Time Keeper **************************************/
extern FULL_CHAR *TimeString(void);
extern void InitTime(void);
extern OBJECT MomentSym;
extern OBJECT StartMoment(void);
/***** z36.c Hyphenation **************************************/
extern BOOLEAN ReadHyphTable(LANGUAGE_NUM lnum);
extern OBJECT Hyphenate(OBJECT x);
/***** z37.c Font Service *************************************/
extern FONT_INFO *finfo;
extern int font_curr_page;
extern void FontInit(void);
extern void FontChange(STYLE *style, OBJECT x);
extern void FontWordSize(OBJECT x);
extern FULL_LENGTH FontSize(FONT_NUM fnum, OBJECT x);
extern FULL_LENGTH FontHalfXHeight(FONT_NUM fnum);
extern MAPPING FontMapping(FONT_NUM fnum, FILE_POS *xfpos);
extern FULL_CHAR *FontName(FONT_NUM fnum);
extern FULL_CHAR *FontFamily(FONT_NUM fnum);
extern FULL_CHAR *FontFace(FONT_NUM fnum);
extern FULL_CHAR *FontFamilyAndFace(FONT_NUM fnum);
extern void FontPrintAll(FILE *fp);
extern void FontPrintPageSetup(FILE *fp);
extern void FontPrintPageResources(FILE *fp);
extern void FontAdvanceCurrentPage(void);
extern void FontPageUsed(OBJECT face);
extern BOOLEAN FontNeeded(FILE *fp);
/***** z38.c Character Mappings **************************************/
extern MAP_VEC MapTable[];
extern MAPPING MapLoad(OBJECT filename, BOOLEAN recoded);
extern FULL_CHAR MapCharEncoding(FULL_CHAR *str, MAPPING m);
extern FULL_CHAR *MapEncodingName(MAPPING m);
extern void MapPrintEncodings();
extern void MapEnsurePrinted(MAPPING m, int curr_page);
extern void MapPrintPSResources(FILE *fp);
extern OBJECT MapSmallCaps(OBJECT x, STYLE *style);
extern BOOLEAN MapIsLowerCase(FULL_CHAR ch, MAPPING m);
/***** z39.c String Handler **************************************/
#define AsciiToFull(x) ( (FULL_CHAR *) (x) )
#define StringEqual(a, b) (strcmp((char *)(a), (char *)(b))==0)
extern int strcollcmp(char *a, char *b);
#define TabbedStringLessEqual(a, b) \
( UseCollate ? strcollcmp((char *)(a),(char *)(b)) <= 0 \
: strcmp((char *)(a),(char *)(b)) <= 0 )
#define StringCat(a, b) strcat((char *)(a),(char *)(b))
#define StringCopy(a, b) strcpy((char *)(a),(char *)(b))
#define StringLength(a) strlen((char *)(a))
#define StringFOpen(a, b) fopen( (char *) (a), (b) )
#define StringFPuts(a, b) fputs( (char *) (a), (b) )
#define StringRemove(a) remove((char *)(a))
#define StringRename(a, b) rename((char *)(a),(char *)(b))
extern BOOLEAN StringBeginsWith(FULL_CHAR *str, FULL_CHAR *pattern);
extern BOOLEAN StringBeginsWithWord(FULL_CHAR *str, FULL_CHAR *pattern);
extern BOOLEAN StringEndsWith(FULL_CHAR *str, FULL_CHAR *pattern);
extern BOOLEAN StringContains(FULL_CHAR *str, FULL_CHAR *pattern);
extern FULL_CHAR *StringInt(int i);
extern FULL_CHAR *StringFiveInt(int i);
extern FULL_CHAR *StringQuotedWord(OBJECT x);
/***** z40.c Filter Handler **************************************/
extern void FilterInit(void);
extern OBJECT FilterCreate(BOOLEAN use_begin, OBJECT act, FILE_POS *xfpos);
extern void FilterSetFileNames(OBJECT x);
extern OBJECT FilterExecute(OBJECT x, FULL_CHAR *command, OBJECT env);
extern void FilterWrite(OBJECT x, FILE *fp, int *linecount);
extern void FilterScavenge(BOOLEAN all);
/***** z41.c Object Input-Output **************************************/
extern OBJECT ReadFromFile(FILE_NUM fnum, long pos, int lnum);
extern void AppendToFile(OBJECT x, FILE_NUM fnum, int *pos, int *lnum);
extern void CloseFiles(void);
/***** z42.c Colour Service **************************************/
extern void ColourInit(void);
extern void ColourChange(STYLE *style, OBJECT x);
extern FULL_CHAR *ColourCommand(COLOUR_NUM cnum);
/***** z43.c Language Service **************************************/
extern void LanguageInit(void);
extern BOOLEAN LanguageWordEndsSentence(OBJECT wd, BOOLEAN lc_prec);
extern void LanguageDefine(OBJECT names, OBJECT hyph_file);
extern void LanguageChange(STYLE *style, OBJECT x);
extern FULL_CHAR *LanguageString(LANGUAGE_NUM lnum);
extern OBJECT LanguageHyph(LANGUAGE_NUM lnum);
extern BOOLEAN LanguageSentenceEnds[];
/***** z44.c Vertical Hyphenation **************************************/
extern BOOLEAN VerticalHyphenate(OBJECT y);
extern OBJECT ConvertGalleyList(OBJECT x);
extern OBJECT BuildEnclose(OBJECT hd);
/***** z45.c External Sort **************************************/
extern int ReadOneLine(FILE *fp, FULL_CHAR *buff, int buff_len);
extern LINE *ReadLines(FILE *fp, FULL_CHAR *fname, FULL_CHAR *first_line, int *len);
extern void WriteLines(FILE *fp, LINE *lines, int len);
extern void SortLines(LINE *lines, int lines_len);
extern void SortFile(FULL_CHAR *infile, FULL_CHAR *outfile);
/***** z46.c Optimal Galleys **************************************/
extern BOOLEAN FindOptimize(OBJECT x, OBJECT env);
extern void SetOptimize(OBJECT hd, STYLE *style);
extern void GazumpOptimize(OBJECT hd, OBJECT dest);
extern void CalculateOptimize(OBJECT hd);
extern void DebugOptimize(OBJECT hd);
/***** z47.c Environment Table **************************************/
extern void EnvInit(void);
extern BOOLEAN EnvWriteRetrieve(OBJECT env, FILE_NUM fnum, int *offset,
int *lnum);
extern void EnvWriteInsert(OBJECT env, FILE_NUM fnum, int offset,int lnum);
extern BOOLEAN EnvReadRetrieve(FILE_NUM fnum, int offset, OBJECT *env);
extern void EnvReadInsert(FILE_NUM fnum, int offset, OBJECT env);
extern void EnvDebug(void);
/***** z48.c PDF back end (old) **************************************/
extern void PDFFile_Init(FILE* in_fp, int in_h_bound, int in_v_bound,
int in_IN, int in_CM, int in_PT, int in_EM);
extern void PDFFile_BeginFontEncoding(FILE* in_fp,
const char* in_encoding_name);
extern void PDFFile_EndFontEncoding(FILE* in_fp);
extern void PDFFile_Cleanup(FILE* in_fp);
extern void PDFPage_Init(FILE* in_fp, float in_scale_factor,
int in_line_width);
extern void PDFPage_Cleanup(FILE* in_fp);
extern void PDFPage_Write(FILE* in_fp, char* in_str);
extern void PDFPage_Push(FILE* in_fp);
extern void PDFPage_Pop(FILE* in_fp);
extern void PDFPage_Scale(FILE* in_fp, float in_h_scale_factor,
float in_v_scale_factor);
extern void PDFPage_Translate(FILE* in_fp, float in_delta_h,
float in_delta_v);
extern void PDFPage_Rotate(FILE* in_fp, float in_angle_in_radians);
extern void PDFPage_SetVars(int xsize, int ysize, int xmark, int ymark,
int loutf, int loutv, int louts);
extern void PDFPage_WriteGraphic(FILE* in_fp, FULL_CHAR* in_str);
extern void PDFPage_PrintUnderline(FILE* in_fp, int in_x1, int in_x2,
int in_y, int in_thickness);
extern void PDFFont_AddFont(
FILE* in_fp,
const FULL_CHAR* in_short_font_name,
const FULL_CHAR* in_real_font_name,
const FULL_CHAR* in_font_encoding_name);
extern void PDFFont_Set(FILE* in_fp, FULL_LENGTH in_font_size,
FULL_CHAR * in_short_font_name);
extern void PDFText_OpenXY(FILE* in_fp, int hpos, int vpos);
extern void PDFText_OpenX(FILE* in_fp, int hpos);
extern void PDFText_Open(FILE* in_fp);
extern void PDFText_Kern(FILE* in_fp, int in_kern);
extern void PDFText_Close(FILE* in_fp);
extern BOOLEAN PDFHasValidTextMatrix(void);
/***** z49.c PostScript back end **************************************/
extern BOOLEAN Encapsulated;
extern BACK_END PS_BackEnd;
extern void PS_IncGRepeated(OBJECT x);
extern int PS_FindIncGRepeated(OBJECT x, int typ);
extern void PS_PrintEPSFile(FILE *fp, FILE_POS *pos);
extern BOOLEAN PS_FindBoundingBox(FILE *fp, FILE_POS *pos, FULL_LENGTH *llx,
FULL_LENGTH *lly, FULL_LENGTH *urx, FULL_LENGTH *ury);
/***** z50.c PDF back end (new) **************************************/
extern BACK_END PDF_BackEnd; /* PDF back end record */
/***** z51.c Plain text back end **************************************/
extern BACK_END Plain_BackEnd; /* Plain Text back end record */
extern FULL_LENGTH PlainCharWidth; /* character width */
extern FULL_LENGTH PlainCharHeight; /* character height */
extern BOOLEAN PlainFormFeed; /* true if using \f */
/***** z52.c Texture Service **************************************/
extern void TextureInit(void);
extern void TextureChange(STYLE *style, OBJECT x);
extern FULL_CHAR *TextureCommand(TEXTURE_NUM pnum);
/*@::assert(), debug(), debug flags@******************************************/
/* */
/* ASSERT AND DEBUG CODE */
/* */
/*****************************************************************************/
#if ASSERT_ON
#define assert(c, m) \
{ if( !(c) ) Error(1, 2, "assert failed in %s", INTERN, no_fpos, m); }
#define assert1(c, m, p1) \
{ if( !(c) ) Error(1, 3, "assert failed in %s %s", INTERN,no_fpos,m, p1); }
#else
#define assert(c, m)
#define assert1(c, m, p1)
#endif
#if DEBUG_ON
struct dbs
{ char *flag; /* external names for debug flags */
BOOLEAN on[3]; /* the debug flags */
};
extern struct dbs dbg[];
/* debug routines */
#define debug0(cat, urg, str) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str); }
#define debug1(cat, urg, str, p1) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1); }
#define debug2(cat, urg, str, p1, p2) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2); }
#define debug3(cat, urg, str, p1, p2, p3) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2, p3); }
#define debug4(cat, urg, str, p1, p2, p3, p4) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2, p3, p4); }
#define debug5(cat, urg, str, p1, p2, p3, p4, p5) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2, p3, p4, p5); }
#define debug6(cat, urg, str, p1, p2, p3, p4, p5, p6) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2, p3, p4, p5, p6); }
#define debug7(cat, urg, str, p1, p2, p3, p4, p5, p6, p7) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2, p3, p4, p5,p6,p7); }
#define debug8(cat, urg, str, p1, p2, p3, p4, p5, p6, p7, p8) \
{ if( dbg[cat].on[urg] ) Debug(cat, urg, str, p1, p2,p3,p4,p5,p6,p7,p8); }
#define ifdebug(cat, urg, x) \
{ if( dbg[cat].on[urg] ) { x; } }
#define debugcond0(cat, urg, cond, str) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str); }
#define debugcond1(cat, urg, cond, str, p1) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1); }
#define debugcond2(cat, urg, cond, str, p1, p2) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1, p2); }
#define debugcond3(cat, urg, cond, str, p1, p2, p3) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1, p2, p3); }
#define debugcond4(cat, urg, cond, str, p1, p2, p3, p4) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1, p2, p3, p4); }
#define debugcond5(cat, urg, cond, str, p1, p2, p3, p4, p5) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1, p2, p3, p4, p5);}
#define debugcond6(cat, urg, cond, str, p1, p2, p3, p4, p5, p6) \
{ if( dbg[cat].on[urg] && cond ) Debug(cat, urg, str, p1, p2,p3,p4,p5,p6);}
#define ifdebugcond(cat, urg, cond, x) \
{ if( dbg[cat].on[urg] && cond ) { x; } }
#define debug_init(str) \
DebugInit(str)
/* debug styles */
#define D 0
#define DD 1
#define DDD 2
/* debug flags */
#define DSP 1 /* z01.c -dsp Supervise */
#define DLA 2 /* z02.c -dla Lexical Analyser */
#define DFS 3 /* z03.c -dfs File Service */
#define DTS 4 /* z04.c -dts Token Service */
#define DRD 5 /* z05.c -drd Read Definitions */
#define DOP 6 /* z06.c -dop Object Parser */
#define DOS 7 /* z07.c -dos Object Service */
#define DOM 8 /* z08.c -dom Object Manifest */
#define DCE 9 /* z09.c -dce Closure Expansion */
#define DCR 10 /* z10.c -dcr Cross References */
#define DSS 11 /* z11.c -dss Style Service */
#define DSF 12 /* z12.c -dsf Size Finder */
#define DOB 13 /* z13.c -dob Object Breaking */
#define DOF 14 /* z14.c -dof Object Filling */
#define DSC 15 /* z15.c -dsc Size Constraints */
#define DSA 16 /* z16.c -dsa Size Adjustments */
#define DGW 17 /* z17.c -dgw Gap Widths */
#define DGT 18 /* z18.c -dgt Galley Transfer */
#define DGA 19 /* z19.c -dgf Galley Attaching */
#define DGF 20 /* z20.c -dgf Galley Flushing */
#define DGM 21 /* z21.c -dgm Galley Maker */
#define DGS 22 /* z22.c -dgs Galley Service */
#define DGP 23 /* z23.c -dgp Galley Printer */
#define DPS 24 /* z24.c -dps Print Service */
#define DOE 25 /* z25.c -doe Object Echo */
#define DES 26 /* z26.c -des Echo Service */
#define DZZ 27 /* z27.c -dzz Debug Service */
#define DYY 28 /* z28.c -dyy Error Service */
#define DST 29 /* z29.c -dst Symbol Table */
#define DSU 30 /* z30.c -dsu Symbol Uses */
#define DMA 31 /* z31.c -dma Memory Allocator */
#define DCS 32 /* z32.c -dcs Counter Service */
#define DBS 33 /* z33.c -dbs Database Service */
#define DRS 34 /* z34.c -drs Rotation Service */
#define DTK 35 /* z35.c -dtk Time Keeper */
#define DHY 36 /* z36.c -dhy Hyphenation */
#define DFT 37 /* z37.c -dft Font Service */
#define DCM 38 /* z38.c -dcm Character Mapping */
#define DSH 39 /* z39.c -dsh String Handler */
#define DFH 40 /* z40.c -dsh Filter Handler */
#define DIO 41 /* z41.c -dio Object Input-Output */
#define DCO 42 /* z42.c -dco Colour Service */
#define DLS 43 /* z43.c -dls Language Service */
#define DVH 44 /* z44.c -dvh Vertical Hyphenation */
#define DEX 45 /* z45.c -dex External Sort */
#define DOG 46 /* z46.c -dex Optimal Galleys */
#define DET 47 /* z47.c -det Environment Table */
#define DPD 48 /* z48.c -dpd PDF Back End (old) */
#define DPO 49 /* z49.c -dpo PostScript Back End */
#define DPF 50 /* z50.c -dpf PDF Back End */
#define DPT 51 /* z51.c -dpt Plain Text Back End */
#define DTX 52 /* z52.c -dtx Texture Service */
#define DPP 53 /* -dpp Profiling */
#define ANY 54 /* -d any */
#else
#define ifdebug(cat, urg, x)
#define debug0(cat, urg, str)
#define debug1(cat, urg, str, p1)
#define debug2(cat, urg, str, p1, p2)
#define debug3(cat, urg, str, p1, p2, p3)
#define debug4(cat, urg, str, p1, p2, p3, p4)
#define debug5(cat, urg, str, p1, p2, p3, p4, p5)
#define debug6(cat, urg, str, p1, p2, p3, p4, p5, p6)
#define debug7(cat, urg, str, p1, p2, p3, p4, p5, p6, p7)
#define debug8(cat, urg, str, p1, p2, p3, p4, p5, p6, p7, p8)
#define debugcond0(cat, urg, cond, str)
#define debugcond1(cat, urg, cond, str, p1)
#define debugcond2(cat, urg, cond, str, p1, p2)
#define debugcond3(cat, urg, cond, str, p1, p2, p3)
#define debugcond4(cat, urg, cond, str, p1, p2, p3, p4)
#define debugcond5(cat, urg, cond, str, p1, p2, p3, p4, p5)
#define debugcond6(cat, urg, cond, str, p1, p2, p3, p4, p5, p6)
#define ifdebugcond(cat, urg, cond, x)
#define debug_init(str) Error(1, 4, "%s - debug flags not implemented", \
FATAL, no_fpos, str)
#endif
