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# XHELP.H -- Include file for the XHELP GUI task.
# Help database header structure. Stored at the beginning of a help
# database file. This information is taken from the help$helpdb.x source.
define LEN_HDBHEADER 14
define HDB_MAGICVAL 110104B
define HDB_MAGIC Memi[$1] # helpdb file type code
define HDB_RAW Memi[$1+1] # access compiled or raw database
define HDB_RHD Memi[$1+2] # if raw, HP of root help directory
define HDB_INDEX Memi[$1+3] # index of root help directory
define HDB_CRDATE Meml[$1+4] # creation date
define HDB_NENTRIES Memi[$1+5] # number of help directories in db
define HDB_MAXENTRIES Memi[$1+6] # maximum no. of help directories in db
define HDB_NMODULES Memi[$1+7] # count of the total number of modules
define HDB_INDEXOFFSET Meml[$1+8] # file offset of index, chars
define HDB_INDEXPTR Memi[$1+9] # pointer to loaded index, ty_struct
define HDB_INDEXLEN Memi[$1+10] # length of index structure, su
define HDB_DATAOFFSET Meml[$1+11] # file offset of data area, chars
define HDB_DATAPTR Memi[$1+12] # pointer to loaded data area, ty_struct
define HDB_DATALEN Memi[$1+13] # length of data area, struct units
# Index structure. Identifies the contents of the database and tells where
# they are stored. There is one index entry for each help directory, i.e.,
# for each package.
define LEN_HDBINDEX 34
define SZ_DBIKEY 63
define LEN_DBIDATA 2
define DBI_KEY Memc[P2C($1)] # entry name
define DBI_OFFSET Memi[$1+32] # offset of entry into data area, su
define DBI_MTIME Meml[$1+33] # modification date of entry
define MAX_ENTRIES 100 # initial max db entries
define INC_ENTRIES 50 # increment if overflow
define MAX_DEPTH 20 # max nesting of packages
define MAX_MENUSIZE 500 # max modules in a table
define MAX_NAMELEN 20 # max chars in a module name in table
# XHELP Macro definitions.
define SZ_HELPLIST 20480
define SZ_XHELPSTRUCT 45
define XH_GP Memi[$1] # graphics descriptor
define XH_LPTR Memi[$1+1] # ptr for pkg list
define XH_TEMPLATE Memi[$1+2] # initial help topic
define XH_OPTION Memi[$1+3] # help option
define XH_PRINTER Memi[$1+4] # printer name
define XH_CURTASK Memi[$1+5] # current task name
define XH_CURPACK Memi[$1+6] # current package name
define XH_QUICKREF Memi[$1+7] # quick-reference filen
define XH_HOMEPAGE Memi[$1+8] # startup page
define XH_CURDIR Memi[$1+9] # current directory
define XH_PATTERN Memi[$1+10] # current filename template
define XH_HELPDB Memi[$1+11] # help database string
define XH_SHOWTYPE Memi[$1+12] # indicate packages in list
define XH_STP Memi[$1+13] # package list symtab ptr
# Helpful macros
define LIST Memc[XH_LPTR($1)]
define TEMPLATE Memc[XH_TEMPLATE($1)]
define OPTION Memc[XH_OPTION($1)]
define PRINTER Memc[XH_PRINTER($1)]
define CURTASK Memc[XH_CURTASK($1)]
define CURPACK Memc[XH_CURPACK($1)]
define QUICKREF Memc[XH_QUICKREF($1)]
define HOMEPAGE Memc[XH_HOMEPAGE($1)]
define CURDIR Memc[XH_CURDIR($1)]
define PATTERN Memc[XH_PATTERN($1)]
define HELPDB Memc[XH_HELPDB($1)]
define WIDE_PAGE 100 # needed by the print routines
define SZ_DDSTR 256
# Filenames.
define HELP "lib$scr/help.html" # default help file
define PKGFILE "uparm$help.pkgs" # default package list symtab
define QREFFILE "uparm$quick.ref" # default references file
# Symbol table definitions.
define LEN_INDEX 10 # length of symtab index
define LEN_STAB 32 # initial length of symtab
define SZ_SBUF 32 # initial size of symtab string buffer
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