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include <syserr.h>
include <error.h>
include <ctotok.h>
include <lexnum.h>
# parameter names and values.
define HS_ADD 1
define HS_ADDONLY 2
define HS_UPDATE 3
define HS_VERIFY 4
define HS_SHOW 5
define HS_DELETE 6
define HS_RENAME 7
define HS_FIELD 8
define HS_VALUE 9
define HS_COMMENT 10
define HS_BEFORE 11
define HS_AFTER 12
define ERROR -2
define HADD Memi[$1]
define HADDONLY Memi[$1+1]
define HUPDATE Memi[$1+2]
define HVERIFY Memi[$1+3]
define HSHOW Memi[$1+4]
define HDELETE Memi[$1+5]
define HRENAME Memi[$1+6]
define HBAF Memi[$1+7]
define HFIELD Memc[P2C($1+10)]
define HVALUE Memc[P2C($1+46)]
define HCOMMENT Memc[P2C($1+86)]
define HBAFVALUE Memc[P2C($1+126)]
define HSZ 200
define OP_EDIT 1 # hedit opcodes
define OP_INIT 2
define OP_ADD 3
define OP_DELETE 4
define OP_DEFPAR 5
define OP_RENAME 6
define BEFORE 1
define AFTER 2
define LEN_CARD 80
# HE_CMDPARS -- Procedure to parse and analyze a string of the form:
#
procedure he_getcmdf (cmd, operation, fields, valexpr, comment, pkey, baf,
update, verify, show)
char cmd[ARB] #I String with kernel section
int operation
char fields[ARB]
char valexpr[ARB]
char comment[ARB]
char pkey[ARB]
int baf
int update
int verify
int show
pointer hc
char outstr[LEN_CARD]
char identif[LEN_CARD], dot
int ip, nexpr, token, add, addonly, delete, rename, nch
bool streq()
int lex_type, ctotok(), he_ks_lex(), ctowrd()
errchk syserr, syserrs
begin
# The default values should have been already initialized
# with a call fxf_ksinit().
call calloc(hc, HSZ, TY_STRUCT)
call he_ksinit (hc)
ip = 1
nexpr = 0
identif[1] = EOS
repeat {
# Advance to the next keyword.
if (ip == 1) {
nch= ctowrd(cmd, ip, outstr, LEN_CARD)
token = TOK_IDENTIFIER
} else {
token = ctotok (cmd, ip, outstr, LEN_CARD)
}
if (token == TOK_CHARCON) {
ip = ip - 2
nch= ctowrd(cmd, ip, outstr, LEN_CARD)
if (nexpr >= 1)
token = TOK_STRING
if (nch <=3) {
#ctowrd will not parse one letter string, doit in here.
outstr[1]=cmd[ip-2]
outstr[2]=EOS
}
}
if (token == TOK_STRING && nexpr == 0)
token = TOK_IDENTIFIER
switch (token) {
case TOK_EOS:
break
case TOK_NEWLINE:
break
case TOK_NUMBER:
if (nexpr != 1) {
call eprintf ("%s\n")
call pargstr (cmd)
call error (13,"Numeric value not allow in this field")
}
call strcpy (outstr, HVALUE(hc), LEN_CARD)
nexpr = nexpr + 1
case TOK_CHARCON:
ip = ip - 1
case TOK_STRING:
if (nexpr != 1 && nexpr != 2) {
call eprintf ("%s\n")
call pargstr (cmd)
call error(13, "Value or comment error")
}
if (nexpr == 1)
call strcpy (outstr, HVALUE(hc), LEN_CARD)
if (nexpr == 2)
call strcpy (outstr, HCOMMENT(hc), LEN_CARD)
nexpr = nexpr + 1
case TOK_IDENTIFIER:
call strcpy (outstr, identif, LEN_CARD)
call strlwr (outstr)
lex_type = he_ks_lex (outstr)
if (streq(identif, "comment") && nexpr == 0)
lex_type = 0
# look for =<value>, + or -
if (lex_type > 0) {
call he_ks_gvalue (lex_type, cmd, ip, hc)
} else {
#if (nexpr == 0 || nexpr == 1)
if (nexpr == 0)
call strcpy (identif, HFIELD(hc), LEN_CARD)
else if (nexpr == 1)
call strcpy (outstr, HVALUE(hc), LEN_CARD)
else {
call eprintf ("%s\n")
call pargstr (cmd)
call error(13, "Field or value error")
}
}
nexpr = nexpr + 1
case TOK_OPERATOR:
dot = outstr[1]
if (nexpr == 1 && dot == '.')
call strcpy (outstr, HVALUE(hc), LEN_CARD)
else if (nexpr == 2 && dot == '.')
call strcpy (outstr, HCOMMENT(hc), LEN_CARD)
else {
call eprintf ("%s\n")
call pargstr (cmd)
call error(13,"error in tok_operator value")
}
nexpr = nexpr + 1
default:
#call error(13,"error in command line")
}
}
call strcpy (HFIELD(hc), fields, LEN_CARD)
call strcpy (HVALUE(hc), valexpr, LEN_CARD)
call strcpy (HCOMMENT(hc), comment, LEN_CARD)
call strcpy (HBAFVALUE(hc), pkey, LEN_CARD)
baf = HBAF(hc)
add = HADD(hc)
addonly = HADDONLY(hc)
update = HUPDATE(hc)
verify = HVERIFY(hc)
show = HSHOW(hc)
delete = HDELETE(hc)
rename = HRENAME(hc)
operation = OP_EDIT
if (add == -1 && addonly == -1 && delete == -1 && rename == -1)
operation = OP_DEFPAR
else if (add == YES)
operation = OP_ADD
else if (addonly == YES)
operation = OP_INIT
else if (delete == YES)
operation = OP_DELETE
else if (rename == YES)
operation = OP_RENAME
if (streq (fields, "default_pars"))
operation = -operation
call mfree(hc, TY_STRUCT)
end
# HE_KS_LEX -- Map an identifier into a header parameter code.
int procedure he_ks_lex (outstr)
char outstr[ARB]
int len, strlen(), strncmp()
errchk syserr, syserrs
begin
len = strlen (outstr)
# Allow for small string to be taken as keyword names
# and not hedit parameters, like 'up' instead of 'up(date)'.
if (len < 3)
return(0)
# Other kernel keywords.
if (strncmp (outstr, "field", len) == 0)
return (HS_FIELD)
if (strncmp (outstr, "value", len) == 0)
return (HS_VALUE)
if (strncmp (outstr, "comment", len) == 0)
return (HS_COMMENT)
if (strncmp (outstr, "after", len) == 0)
return (HS_AFTER)
if (strncmp (outstr, "before", len) == 0)
return (HS_BEFORE)
if (strncmp (outstr, "add", len) == 0)
return (HS_ADD)
if (strncmp (outstr, "addonly", len) == 0)
return (HS_ADDONLY)
if (strncmp (outstr, "delete", len) == 0)
return (HS_DELETE)
if (strncmp (outstr, "rename", len) == 0)
return (HS_RENAME)
if (strncmp (outstr, "verify", len) == 0)
return (HS_VERIFY)
if (strncmp (outstr, "show", len) == 0) {
return (HS_SHOW)
}
if (strncmp (outstr, "update", len) == 0)
return (HS_UPDATE)
return (0) # not recognized; probably a value
end
# FXF_KS_GVALUE -- Given a parameter code get its value at the 'ip' character
# position in the 'ksection' string. Put the values in the FKS structure.
procedure he_ks_gvalue (param, cmd, ip, hc)
int param #I parameter code
char cmd[ARB] #I Ksection
int ip #I Current parsing pointer in ksection
pointer hc #U Update the values in the FKS structure
pointer sp, ln
int jp, token
int ctotok()
errchk syserr, syserrs
begin
jp = ip
call smark (sp)
call salloc (ln, LEN_CARD, TY_CHAR)
# See if the parameter value is given as par=<value> or '+/-'
if (ctotok (cmd, jp, Memc[ln], LEN_CARD) == TOK_OPERATOR) {
if (Memc[ln] == '=' ) {
token = ctotok (cmd, jp, Memc[ln], LEN_CARD)
if (token != TOK_IDENTIFIER &&
token != TOK_STRING && token != TOK_NUMBER) {
call syserr (SYS_FXFKSSYN)
} else {
call he_ks_val (Memc[ln], param, hc)
ip = jp
}
} else if (Memc[ln] == '+' || Memc[ln] == '-') {
call he_ks_pm (Memc[ln], param, hc)
ip = jp
}
}
call sfree (sp)
end
# FXF_KS_VALUE -- Returns the value of a parameter in the kernel section.
procedure he_ks_val (outstr, param, hc)
char outstr[ARB] #I Input string with value
int param #I Parameter code
pointer hc #U Fits kernel descriptor
int ival
int strcmp()
errchk syserr, syserrs
begin
call strlwr (outstr)
if (strcmp (outstr, "yes") == 0)
ival = YES
else if (strcmp (outstr, "no") == 0)
ival = NO
else
ival = ERROR
switch (param) {
case HS_FIELD:
call strcpy (outstr, HFIELD(hc), LEN_CARD)
case HS_VALUE:
call strcpy (outstr, HVALUE(hc), LEN_CARD)
case HS_COMMENT:
call strcpy (outstr, HCOMMENT(hc), LEN_CARD)
case HS_BEFORE:
HBAF(hc) = BEFORE
call strcpy (outstr, HBAFVALUE(hc), LEN_CARD)
case HS_AFTER:
HBAF(hc) = AFTER
call strcpy (outstr, HBAFVALUE(hc), LEN_CARD)
case HS_ADD:
HADD(hc) = ival
case HS_ADDONLY:
HADDONLY(hc) = ival
case HS_UPDATE:
HUPDATE(hc) = ival
case HS_VERIFY:
HVERIFY(hc) = ival
case HS_SHOW:
HSHOW(hc) = ival
case HS_DELETE:
HDELETE(hc) = ival
case HS_RENAME:
HRENAME(hc) = ival
default:
call syserr (SYS_FXFKSSYN)
}
end
# HE_KS_PM -- Return the character YES or NO based on the value '+' or '-'
procedure he_ks_pm (pm, param, hc)
char pm[1] #I contains "+" or "-"
int param #I Parameter code
pointer hc #U Fits kernel descriptor
int ival
errchk syserr, syserrs
begin
if (pm[1] == '+')
ival = YES
else
ival = NO
switch (param) {
case HS_ADD:
HADD(hc) = ival
case HS_ADDONLY:
HADDONLY(hc) = ival
case HS_UPDATE:
HUPDATE(hc) = ival
case HS_VERIFY:
HVERIFY(hc) = ival
case HS_SHOW:
HSHOW(hc) = ival
case HS_DELETE:
HDELETE(hc) = ival
case HS_RENAME:
HRENAME(hc) = ival
default:
call error(13, "ks_pm: invalid value")
}
end
# FXF_KSINIT -- Initialize default values for ks parameters.
procedure he_ksinit (hc)
pointer hc #I
begin
HADD(hc) = -1
HADDONLY(hc) = -1
HDELETE(hc) = -1
HRENAME(hc) = -1
HUPDATE(hc) = -1
HVERIFY(hc) = -1
HSHOW(hc) = -1
end
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