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ada95_regen.tcl
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1997-10-20
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###########################################################################
##
## Copyright (c) 1996 by Cadre Technologies Inc.
## and Scientific Toolworks Inc.
##
## This software is furnished under a license and may be used only in
## accordance with the terms of such license and with the inclusion of
## the above copyright notice. This software or any other copies thereof
## may not be provided or otherwise made available to any other person.
## No title to and ownership of the software is hereby transferred.
##
## The information in this software is subject to change without notice
## and should not be construed as a commitment by Cadre Technologies Inc.
## or Scientific Toolworks Inc.
##
###########################################################################
global re_old_spec_def_sect
global re_old_body_def_sect
global re_old_subp_arr
proc re_echo {line} {
# puts stdout $line
}
proc prepare_regeneration {clname sysflag} {
global re_old_spec_def_sect
set re_old_spec_def_sect [section create]
global re_old_body_def_sect
set re_old_body_def_sect [section create]
global re_old_subp_arr
catch {unset re_old_subp_arr}
parse_spec_file $clname
if {$sysflag == 0} {parse_body_file $clname}
}
proc parse_spec_file {clname} {
re_echo "Entering parse_spec_file: class: $clname"
global ada95_sections
global re_old_spec_def_sect
global USERINITLINE
global OLDUSERINITLINE
global USERINITINFO
global WS
class2tgtfiles $clname body_file spec_file
if {![fstorage::exists $spec_file]} {
re_echo "Initializing sections"
init_user_sect ada95_sections(h_user_sect_1)
init_user_sect ada95_sections(h_user_sect_2)
init_user_sect ada95_sections(h_user_sect_3)
init_user_sect ada95_sections(h_user_sect_4)
return
}
puts stdout "Scanning $spec_file"
if { [ catch {set fd [fstorage::open $spec_file r]} reason ] } {
puts stderr $reason
m4_error $E_FILE_OPEN_READ $spec_file
init_user_sect ada95_sections(h_user_sect_1)
init_user_sect ada95_sections(h_user_sect_2)
init_user_sect ada95_sections(h_user_sect_3)
init_user_sect ada95_sections(h_user_sect_4)
return
}
set line ""
set lineno 0
# skip the h_hdr_sect section
skip_file_upto $spec_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the h_user_sect_1 section
load_user_sect $spec_file $fd ada95_sections(h_user_sect_1) line lineno
# Ignore the package statement, since it may change due to
# child syntax.
# skip the h_incl_sect section
#skip_file_upto $spec_file "package $clname is" \
# $fd "^${WS}*package ${clname} is" line lineno
# skip the h_class_nm_sect section
skip_file_upto $spec_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the h_user_sect_2 section
load_user_sect $spec_file $fd ada95_sections(h_user_sect_2) line lineno
# load the h_pub_data_sect .. h_priv_func_sect sections into the
# re_old_spec_def_sect section
load_sect_upto $spec_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE\
re_old_spec_def_sect line lineno
# load the h_user_sect_3 section
load_user_sect $spec_file $fd ada95_sections(h_user_sect_3) line lineno
# Ignore the end statement, since it may change due to
# child syntax.
# skip the h_trailer_sect section
#skip_file_upto $spec_file "end $clname;" \
# $fd "^${WS}*end ${clname};" line lineno
skip_file_upto $spec_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the h_user_sect_4 section
load_user_sect $spec_file $fd ada95_sections(h_user_sect_4) line lineno
while {[read_next_line $spec_file $fd line lineno 0]} {}
fstorage::close $fd
re_echo "Exitting parse_spec_file"
}
proc parse_body_file {clname} {
re_echo "Entering parse_body_file: class: $clname"
global ada95_sections
global re_old_body_def_sect
global USERINITLINE
global OLDUSERINITLINE
global USERINITINFO
global WS
class2tgtfiles $clname body_file spec_file
if {![fstorage::exists $body_file]} {
init_user_sect ada95_sections(c_user_sect_1)
init_user_sect ada95_sections(c_user_sect_2)
init_user_sect ada95_sections(c_user_sect_3)
init_user_sect ada95_sections(c_user_sect_4)
init_user_sect ada95_sections(c_user_sect_5)
return
}
puts stdout "Scanning $body_file"
if { [ catch {set fd [fstorage::open $body_file r]} reason ] } {
puts stderr $reason
m4_error $E_FILE_OPEN_READ $body_file
init_user_sect ada95_sections(c_user_sect_1)
init_user_sect ada95_sections(c_user_sect_2)
init_user_sect ada95_sections(c_user_sect_3)
init_user_sect ada95_sections(c_user_sect_4)
init_user_sect ada95_sections(c_user_sect_5)
return
}
set line ""
set lineno 0
# skip the c_hdr_sect section
skip_file_upto $body_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the c_user_sect_1 section
load_user_sect $body_file $fd ada95_sections(c_user_sect_1) line lineno
# Ignore the package body statement, since it may change due to
# child syntax.
# skip the c_class_nm_sect section
#skip_file_upto $body_file "package body $clname is" \
# $fd "^${WS}*package body ${clname} is" line lineno
skip_file_upto $body_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the c_user_sect_2 section
load_user_sect $body_file $fd ada95_sections(c_user_sect_2) line lineno
# load the c_opaque_sect section into the re_old_body_def_sect
load_sect_upto $body_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE \
re_old_body_def_sect line lineno
# load the c_user_sect_3 section
load_user_sect $body_file $fd ada95_sections(c_user_sect_3) line lineno
# load the c_access_func_sect and c_impl_sect sections
load_access_impl_sect $body_file $fd line lineno
# load the c_user_sect_4 section
load_user_sect $body_file $fd ada95_sections(c_user_sect_4) line lineno
# Ignore the end statement, since it may change due to
# child syntax.
# skip the c_trailer_sect section
#skip_file_upto $body_file "end $clname;" \
# $fd "^${WS}*end ${clname};" line lineno
skip_file_upto $body_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE line lineno
# load the c_user_sect_5 section
load_user_sect $body_file $fd ada95_sections(c_user_sect_5) line lineno
while {[read_next_line $body_file $fd line lineno 0]} {}
fstorage::close $fd
re_echo "Exitting parse_body_file"
}
proc parse_separate_file {class subpname implsect} {
set s 1
if [catch {set s [parse_separate_file_actual \
$class $subpname $implsect]} result] {
switch $errorCode {
ERR_REGEN {
puts stderr $result
set s 0
}
default {error $result $errorInfo $errorCode}
}
}
return $s
}
proc parse_separate_file_actual {class subpname implsect} {
# returns 1 and appends to separate_sections(c_user_sect_1), impl_sect
# if file found
# returns 0 and initializes separate_sections(c_user_sect_1)
# if file not found
global separate_sections
global USERINITLINE
global OLDUSERINITLINE
global USERINITINFO
class2separatefiles $class $subpname separate_file
if {![fstorage::exists $separate_file]} {
init_user_sect separate_sections(c_user_sect_1)
return 0
}
puts stdout "Scanning $separate_file"
if { [ catch {set fd [fstorage::open $separate_file r]} reason ] } {
puts stderr $reason
m4_error $E_FILE_OPEN_READ $separate_file
init_user_sect separate_sections(c_user_sect_1)
return 0
}
set clname [get_name $class]
set line ""
set lineno 0
# skip the file header section
skip_file_upto $separate_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE \
line lineno
# load the c_user_sect_1 section
load_user_sect $separate_file $fd separate_sections(c_user_sect_1) \
line lineno
re_echo "parse_separate_file_actual: c_user_sect_1:\n[section get_contents $separate_sections(c_user_sect_1)]"
# skip the separate subprogram header section
skip_file_upto $separate_file $USERINITINFO $fd $USERINITLINE $OLDUSERINITLINE \
line lineno
# load the c_impl_sect section
load_user_sect $separate_file $fd implsect line lineno
re_echo "parse_separate_file_actual: implsect:\n[section get_contents $implsect]"
while {[read_next_line $separate_file $fd line lineno 0]} {}
fstorage::close $fd
puts stdout "Done scanning $separate_file"
return 1
}
proc read_next_line {filename fd upline uplineno {erreof 0} {expmsg ""}} {
upvar $upline line
upvar $uplineno lineno
if {[gets $fd line] < 0} {
if {$erreof} {
fstorage::close $fd
set errmsg "File $filename terminated unexpectedly"
append errmsg " at line $lineno"
if {$expmsg != ""} {
append errmsg "; expected to find line: $expmsg"
}
error "ERROR: ${errmsg}" "STOP" ERR_REGEN
} else {
return 0
}
}
incr lineno
if {[regexp "${WS}*${OBSOLETE}" $line] || [regexp "${WS}*${OLDOBSOLETE}" $line]} {
fstorage::close $fd
set errmsg "File $filename contains ${OBSOLETE} line"
append errmsg "; regeneration failed"
error "ERROR: ${errmsg}" "STOP" ERR_REGEN
}
return 1
}
proc init_user_sect {upsect} {
global USERINITINFO
global USEREXITINFO
upvar $upsect sect
section append $sect "${USERINITINFO}\n"
section append $sect "${USEREXITINFO}\n"
}
proc skip_file_upto {filename userinfo fd expr oldexpr upline uplineno} {
upvar $upline line
upvar $uplineno lineno
while {1} {
if {[regexp -nocase $expr $line] || [regexp -nocase $oldexpr $line]} { return }
read_next_line $filename $fd line lineno 1 $userinfo
}
}
proc load_sect_upto {filename userinfo fd expr oldexpr upsect upline uplineno} {
upvar $upline line
upvar $uplineno lineno
upvar $upsect sect
re_echo "Entering load_sect_upto: line: '$line'"
while {1} {
if {[regexp -nocase $expr $line] || [regexp -nocase $oldexpr $line]} {
re_echo "Exitting load_sect_upto: line: '$line'"
return
}
section append $sect "$line\n"
read_next_line $filename $fd line lineno 1 $userinfo
}
}
proc load_user_sect {filename fd upsect upline uplineno} {
upvar $upsect sect
upvar $upline line
upvar $uplineno lineno
load_user_sect_or_text $filename $fd sect 1 line lineno
}
proc load_user_text {filename fd uptext upline uplineno} {
upvar $uptext text
upvar $upline line
upvar $uplineno lineno
load_user_sect_or_text $filename $fd text 0 line lineno
}
proc load_user_sect_or_text {filename fd upresult issect upline uplineno} {
global USEREXITLINE
global OLDUSEREXITLINE
global USEREXITINFO
global WS
global OBSOLETE
global OLDOBSOLETE
upvar $upresult result
upvar $upline line
upvar $uplineno lineno
re_echo "Entering load_user_sect_or_text: line: '$line'"
if {$issect} {
if {[section get_indent_string $result] != "$OBSOLETE" &&
[section get_indent_string $result] != "$OLDOBSOLETE"} {
section set_indent $result 0 " "
}
}
while {1} {
if {$issect} {
section append $result "$line\n"
} else {
append result "$line\n"
}
if {[regexp -nocase $USEREXITLINE $line] || [regexp -nocase $OLDUSEREXITLINE $line]} {
# read next line before exitting
read_next_line $filename $fd line lineno 0
re_echo "Exitting load_user_sect_or_text: line: '$line'"
return
}
read_next_line $filename $fd line lineno 1 $USEREXITINFO
}
}
proc load_access_impl_sect {filename fd upline uplineno} {
global USERINITLINE
global OLDUSERINITLINE
global USERINITINFO
global WS
upvar $upline line
upvar $uplineno lineno
re_echo "Entering load_access_impl_sect: line: '$line'"
while {1} {
if {[regexp -nocase $USERINITLINE $line] || [regexp -nocase $OLDUSERINITLINE $line]} {
re_echo "Exitting load_access_impl_sect: line: '$line'"
return
} elseif {[regexp -nocase "^${WS}*procedure${WS}+" $line]} {
load_subp $filename $fd line lineno 1
} elseif {[regexp -nocase "^${WS}*function${WS}+" $line]} {
load_subp $filename $fd line lineno 0
} else {
read_next_line $filename $fd line lineno 1 $USERINITINFO
}
}
}
proc load_subp {filename fd upline uplineno isproc} {
global USERINITLINE
global OLDUSERINITLINE
global USERINITINFO
global WS
global ID
global re_old_subp_arr
upvar $upline line
upvar $uplineno lineno
set name ""
set args ""
set header ""
set body ""
if {$isproc} {
set pat1 "^${WS}*procedure${WS}+(${ID})"
set pat2 ""
} else {
set pat1 "^${WS}*function${WS}+(${ID}|\".*\")"
set pat2 "return${WS}+${ID}"
}
re_echo "Entering load_subp: line: '$line'"
if {[regexp -nocase "(${pat1})${WS}*\$" $line junk header name]} {
#
# matched: "procedure Name"
# or: "function Name"
#
set header [string trim $header]
while {[read_next_line $filename $fd line lineno 1 \
"\[...) \]is\[ separate;\]"]} {
if {[regexp -nocase \
"(${WS}*${pat2})?${WS}*is${WS}*( separate;)?\$" \
$line junk temp body]} {
#
# matched: "is[ separate;]"
# or: "return Type is[ separate;]"
#
set temp [string trim $temp]
if {$temp != ""} {
append header " $temp"
}
break
} elseif {[regexp -nocase \
"(.+\\)(${WS}*${pat2})?)${WS}*is${WS}*( separate;)?\$" \
$line junk1 temp junk2 body]} {
#
# matched: "...) is[ separate;]"
# or: "...) return Type is[ separate;]"
#
set temp [string trim $temp]
if {$temp != ""} {
append header " $temp"
}
break
}
set line [string trim $line]
if {$line != ""} {
append header " $line"
}
}
} elseif {[regexp -nocase \
"(${pat1}(${WS}+${pat2})?)${WS}+is${WS}*( separate;)?\$" \
$line junk1 header name junk2 body]} {
#
# matched: "procedure Name is[ separate;]"
# or: "function Name return Type is[ separate;]"
#
set header [string trim $header]
} elseif {[regexp -nocase \
"(${pat1}${WS}*\\(.*\\)(${WS}*${pat2})?)${WS}*is${WS}*( separate;)?\$" \
$line junk1 header name junk2 body]} {
#
# matched: "procedure Name (Args) is[ separate;]"
# or: "function Name (Args) return Type is[ separate;]"
#
set header [string trim $header]
} else {
fstorage::close $fd
error "file $filename, line $lineno: improper subprogram header format" "STOP" ERR_REGEN
}
if {$body == ""} {
#
# look for a user-written body
#
while {[read_next_line $filename $fd line lineno 1 \
"'begin' or '${USERINITINFO}'"]} {
if {[regexp -nocase "^${WS}*begin(\$|${WS}+|--)" $line]} {
break
} elseif {[regexp -nocase ${USERINITLINE} $line] || [regexp -nocase ${OLDUSERINITLINE} $line]} {
#
# load the user-written body
#
load_user_text $filename $fd body line lineno
break
}
}
} else {
# read next line before exitting
read_next_line $filename $fd line lineno 0
}
re_echo "load_subp: name: '$name'"
re_echo "load_subp: header: '$header'"
re_echo "load_subp: body: '$body'"
# If a user-written body (or the "separate;" clause) was found for the
# subprogram, add the header and body (or "separate;") to the global
# array 're_old_subp_arr'. The index to the array is the name of the
# subprogram. The value of an array element is a list of (overloaded)
# subprogram header and body pairs. For each overloaded subprogram
# this list is extended with another header and body pair. The order
# of this list is the file order.
if {$body != ""} {
if [info exists re_old_subp_arr($name)] {
lappend re_old_subp_arr($name) $header
lappend re_old_subp_arr($name) $body
} else {
set re_old_subp_arr($name) [list $header $body]
}
}
re_echo "Exitting load_subp: line: '$line'"
}
# provide a method body; a default message or a previously edited one
# look in global array 're_old_subp_arr' for user added method bodies.
#
# if var_name is not empty, this name is used for the ...not_yet_implemented
# variable
proc get_method_body {name method_type c_sect opername} {
puts stdout "WARNING: use get_subp_user_body instead of get_method_body"
}
proc get_subp_user_body {class subpname subpheader implsect} {
# returns 1 and appends user-written body to implsect if found, and if
# separate file is parsed, also sets separate_sections(c_
# user_sect_1) from file
# returns -1 and appends user-written body prefixed by "-- OBSOLETE:"
# to implsect if name matched but not header
# returns 0 and appends dummy body if body not found
global re_old_subp_arr
global separate_sections
if {![info exists re_old_subp_arr($subpname)]} {
if {[info exists separate_sections(c_user_sect_1)]} {
init_user_sect separate_sections(c_user_sect_1)
}
append_null_body $subpname $implsect
return 0
}
re_echo "get_subp_user_body: inp header: $subpheader"
regsub -all "${WS}*\n${WS}*" [string trim $subpheader] " " subpheader
re_echo "get_subp_user_body: trm header: $subpheader"
set avail [lsearch -exact $re_old_subp_arr($subpname) $subpheader]
if {$avail != -1} {
#
# full match, name and header, pop the header, append the body
#
lvarpop re_old_subp_arr($subpname) $avail
set body [lvarpop re_old_subp_arr($subpname) $avail]
if {[llength $re_old_subp_arr($subpname)] == 0} {
unset re_old_subp_arr($subpname)
}
if {[regexp -nocase "^${WS}*separate;${WS}*\$" $body]} {
if {[parse_separate_file $class $subpname $implsect]} {
return 1
} else {
append_null_body $subpname $implsect
return 0
}
} else {
set indcnt 0
while {[section get_indent $implsect] > 0} {
section set_indent $implsect -
incr indcnt
}
section append $implsect "$body"
while {$indcnt > 0} {
section set_indent $implsect +
incr indcnt -1
}
return 1
}
} else {
# name matched, but not the header, parameters probably changed
# just pick the first one of the list
puts stdout "WARNING: generated OBSOLETE section"
lvarpop re_old_subp_arr($subpname)
set body [lvarpop re_old_subp_arr($subpname)]
if {[llength $re_old_subp_arr($subpname)] == 0} {
unset re_old_subp_arr($subpname)
}
set tempsect [section create]
section set_indent $tempsect 1 "${OBSOLETE}"
if {[regexp -nocase "^${WS}*separate;${WS}*\$" $body]} {
parse_separate_file $class $subpname $tempsect
} else {
section append $tempsect "$body"
}
section append $implsect "${USERINITINFO}\nbegin\n"
section append_section $implsect $tempsect
section append $implsect "end ${subpname};\n${USEREXITINFO}\n"
section dealloc $tempsect
return -1
}
return 0
}
proc append_null_body {subpname sect} {
section append $sect "${USERINITINFO}\nbegin\n"
section append $sect " -- !! Implement this subprogram !!\n"
section append $sect "end ${subpname};\n${USEREXITINFO}\n"
}
proc del_subp_info {class subpname subpheader} {
# returns 1 and deletes header and body if subprogram found
# returns 0 if body not found
puts stdout "proc del_subp_info called!!"
global re_old_subp_arr
if {![info exists re_old_subp_arr($subpname)]} {
return 0
}
set avail [lsearch -exact $re_old_subp_arr($subpname) $subpheader]
if {$avail != -1} {
lvarpop re_old_subp_arr($subpname) $avail
lvarpop re_old_subp_arr($subpname) $avail
} else {
# just delete the first one
lvarpop re_old_subp_arr($subpname)
lvarpop re_old_subp_arr($subpname)
}
if {[llength $re_old_subp_arr($subpname)] == 0} {
unset re_old_subp_arr($subpname)
}
}
proc append_obsolete_code {class} {
global re_old_subp_arr
global OBSOLETE
if {![info exists re_old_subp_arr]} {
return
}
if {[array names re_old_subp_arr] == ""} {
return
}
puts "WARNING: appending obsolete code section"
set sect [section create]
section set_indent $sect 1 "${OBSOLETE}"
foreach subp [array names re_old_subp_arr] {
while {[llength $re_old_subp_arr($subp)] != 0} {
section append $sect "[lvarpop re_old_subp_arr($subp)]\n"
}
}
section append_section $ada95_sections(c_user_sect_5) $sect
section dealloc $sect
}