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1 line
5.6 KiB
C
Executable File
1 line
5.6 KiB
C
Executable File
/***********************************************************************\
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Filename: environ.h
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\***********************************************************************/
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#ifndef SC_ENVIRON
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#define SC_ENVIRON
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#ifndef _PROXLIB
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#include <proxlib.h>
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#endif
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#ifndef _SSEARCH
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#include <ssearch.h>
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#endif
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#ifndef SC_SCDEF
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#include "scdef.h"
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#endif
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/* These define the tags associated with lexicon words. */
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#define IW_TAG 0x80 /* Bit that indicates a tag. */
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#define IW_TAGMASK 0x7F /* The tag information mask */
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#define IW_TAGACC 0x70 /* Mask for the accent number field */
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#define IW_TAGINDX 0x0F /* Mask for the suffix number field */
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/* These are the characters used in unencoded words and in the two character
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phonetic words. */
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#define E_HYTEMP 0x07 /* hyphen substitution character */
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#define E_LRSEP 0x08 /* mispelling-pair separator */
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#define E_REPEAT 0x09 /* "repeat last character" symbol */
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#define E_FILL 0x0B /* pair-padding "nothing" phonetic value */
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#define E_LOPH 0x10 /* lowest phonetic character */
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#define E_LOGPH 0x11 /* lowest PF474 Group symbol */
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#define E_HIGPH 0x18 /* highest PF474 Group symbol */
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#define E_HIPH 0x19 /* highest (ascii value) phonetic character */
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#define E_VOWEL 0x18 /* phonetic value of vowels */
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#define E_TCBASE 0xC0 /* base of 64-char transition symbol set */
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/* These are special codes in the one character phonetic strings. */
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#define E_LRIND 0x04 /* index of E_LRSEP in phonetic tables */
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#define E_RPTIND 0x05 /* index of E_REPEAT,E_FILL in phon tables */
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/* PHON defines the phonetic structure of each language.
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ph_ctype contains bits that describe how the language uses each
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character. The characteristics include (among other things): the
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character is valid, the character is punctuation, and the character is a
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vowel.
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The fields ph_size, ph_sep, ph_nlink, ph_nchar, ph_nindex, and ph_str
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define the rules for phonetic encoding. To see how they do so, see the
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phencode routine.
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The ph_bintab element contains a sorted list of phonetic essences. Words
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in CLAM files and compressed lexicons are "binned" with this essence
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table, allowing rapid access to words through their phonetically encoded
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forms. ph_nbin is the size of the table.
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ph_phontab is the translation table for phonetic characters. The table
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is indexed by a phonetic character and translates it into a phonetic
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pair. This size of this table is ph_nphon. The fields ph_minprep,
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ph_nprep, and ph_efill record special information about the phonetic
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table.
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The fields ph_phpar and ph_phspar contain the theta parameters for the
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language. The first of these is for ordinary length words, the second,
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for short words.
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*/
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/* What used to be the PHON structure */
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#define NBIN 170
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#define NPHON 58
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#define MINALPH 12
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#define NUMALPH 46
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#define EFILLIND 7
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extern UCHAR *Engphbintab[]; /* location of constant bin table */
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extern UCHAR Engphtab[][2]; /* table of phon pair-to-byte mappings */
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extern UCHAR Engctype[]; /* Character types information */
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extern UCHAR Engphpar[]; /* Proximity parameters */
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extern UCHAR Engphspar[]; /* Proximity parameters - short words */
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#define PH_SIZE 0x9f
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#define PH_SEP 0x23
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extern UCHAR Engnlink[]; /* link to next node in tree */
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extern UCHAR Engnchar[]; /* character for this node */
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extern UCHAR Engnindex[]; /* index into string table */
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extern UCHAR Engstr[]; /* the string table */
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/* Environment structure. Those things which can change from language to
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language are (partly) centralized here. The first item in this table is
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the environment code for the language.
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The next section of the structure contains pointers to other data used by
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the Spelling Components for this language.
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The last section contains pointers to special functions for the
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language. */
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/* Environment globals */
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extern int Iswacctab[];
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/* SC globals */
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extern int Tsciswctl; /* The word lists to be used by isword() */
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extern int Tscflags; /* The flags being checked */
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extern int Tsclen; /* The length being checked */
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extern int Tscindex; /* The position being checked */
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extern int Tscaccmiss; /* The query is missing an accent */
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extern UCHAR Tsclookup[LONGWORD+2]; /* The lookup form being checked */
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extern char *Tsccurlist; /* The current word list */
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extern int Tsccurblk; /* The current block number */
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extern UCHAR Tscdecomp[3*MAXWORD]; /* The decompression buffer */
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extern UCHAR Tscfdecomp[MAXFLAGS]; /* The flag decompression buffer */
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extern int Tsctag; /* The tag for the current word */
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extern UCHAR *Tscendptr; /* End of the decompressed data */
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/* character typing bits for use with the ph_ctype tables. */
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#define C_VALID 0x01 /* valid character in a word */
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#define C_DET_T 0x08 /* Detect: character is a token by itself */
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#define C_DET_V 0x20 /* Detect: character is vowel */
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#define C_ACMATCH 0x40 /* unaccented char matches this char */
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#define scvalid(c) (Engctype[ctoi(c)] & C_VALID)
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/* Character is encodable */
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#define scvowel(c) (Engctype[ctoi(c)] & C_DET_V)
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/* Character is a vowel */
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/* Miscellaneous definitions. */
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#define U_S(s) ((UCHAR *)(s)) /* Cast to unsigned char */
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#define scmove(d,s,c) (move((char *)(d), (char *)(s), (c))) /* Move arb data*/
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#endif /* _ENVIRON */
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