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#= parse_f95.rb - Fortran95 Parser
#
#== Overview
#
#"parse_f95.rb" parses Fortran95 files with suffixes "f90", "F90", "f95"
#and "F95". Fortran95 files are expected to be conformed to Fortran95
#standards.
#
#== Rules
#
#Fundamental rules are same as that of the Ruby parser.
#But comment markers are '!' not '#'.
#
#=== Correspondence between RDoc documentation and Fortran95 programs
#
#"parse_f95.rb" parses main programs, modules, subroutines, functions,
#derived-types, public variables, public constants,
#defined operators and defined assignments.
#These components are described in items of RDoc documentation, as follows.
#
#Files :: Files (same as Ruby)
#Classes :: Modules
#Methods :: Subroutines, functions, variables, constants, derived-types, defined operators, defined assignments
#Required files :: Files in which imported modules, external subroutines and external functions are defined.
#Included Modules :: List of imported modules
#Attributes :: List of derived-types, List of imported modules all of whose components are published again
#
#Components listed in 'Methods' (subroutines, functions, ...)
#defined in modules are described in the item of 'Classes'.
#On the other hand, components defined in main programs or
#as external procedures are described in the item of 'Files'.
#
#=== Components parsed by default
#
#By default, documentation on public components (subroutines, functions,
#variables, constants, derived-types, defined operators,
#defined assignments) are generated.
#With "--all" option, documentation on all components
#are generated (almost same as the Ruby parser).
#
#=== Information parsed automatically
#
#The following information is automatically parsed.
#
#* Types of arguments
#* Types of variables and constants
#* Types of variables in the derived types, and initial values
#* NAMELISTs and types of variables in them, and initial values
#
#Aliases by interface statement are described in the item of 'Methods'.
#
#Components which are imported from other modules and published again
#are described in the item of 'Methods'.
#
#=== Format of comment blocks
#
#Comment blocks should be written as follows.
#Comment blocks are considered to be ended when the line without '!'
#appears.
#The indentation is not necessary.
#
# ! (Top of file)
# !
# ! Comment blocks for the files.
# !
# !--
# ! The comment described in the part enclosed by
# ! "!--" and "!++" is ignored.
# !++
# !
# module hogehoge
# !
# ! Comment blocks for the modules (or the programs).
# !
#
# private
#
# logical :: a ! a private variable
# real, public :: b ! a public variable
# integer, parameter :: c = 0 ! a public constant
#
# public :: c
# public :: MULTI_ARRAY
# public :: hoge, foo
#
# type MULTI_ARRAY
# !
# ! Comment blocks for the derived-types.
# !
# real, pointer :: var(:) =>null() ! Comments block for the variables.
# integer :: num = 0
# end type MULTI_ARRAY
#
# contains
#
# subroutine hoge( in, & ! Comment blocks between continuation lines are ignored.
# & out )
# !
# ! Comment blocks for the subroutines or functions
# !
# character(*),intent(in):: in ! Comment blocks for the arguments.
# character(*),intent(out),allocatable,target :: in
# ! Comment blocks can be
# ! written under Fortran statements.
#
# character(32) :: file ! This comment parsed as a variable in below NAMELIST.
# integer :: id
#
# namelist /varinfo_nml/ file, id
# !
# ! Comment blocks for the NAMELISTs.
# ! Information about variables are described above.
# !
#
# ....
#
# end subroutine hoge
#
# integer function foo( in )
# !
# ! This part is considered as comment block.
#
# ! Comment blocks under blank lines are ignored.
# !
# integer, intent(in):: inA ! This part is considered as comment block.
#
# ! This part is ignored.
#
# end function foo
#
# subroutine hide( in, &
# & out ) !:nodoc:
# !
# ! If "!:nodoc:" is described at end-of-line in subroutine
# ! statement as above, the subroutine is ignored.
# ! This assignment can be used to modules, subroutines,
# ! functions, variables, constants, derived-types,
# ! defined operators, defined assignments,
# ! list of imported modules ("use" statement).
# !
#
# ....
#
# end subroutine hide
#
# end module hogehoge
#
require "rdoc/code_objects"
module RDoc
class Token
NO_TEXT = "??".freeze
def initialize(line_no, char_no)
@line_no = line_no
@char_no = char_no
@text = NO_TEXT
end
# Because we're used in contexts that expect to return a token,
# we set the text string and then return ourselves
def set_text(text)
@text = text
self
end
attr_reader :line_no, :char_no, :text
end
# See rdoc/parsers/parse_f95.rb
class Fortran95parser
extend ParserFactory
parse_files_matching(/\.((f|F)9(0|5)|F)$/)
@@external_aliases = []
@@public_methods = []
# "false":: Comments are below source code
# "true" :: Comments are upper source code
COMMENTS_ARE_UPPER = false
# Internal alias message
INTERNAL_ALIAS_MES = "Alias for"
# External alias message
EXTERNAL_ALIAS_MES = "The entity is"
# prepare to parse a Fortran 95 file
def initialize(top_level, file_name, body, options, stats)
@body = body
@stats = stats
@file_name = file_name
@options = options
@top_level = top_level
@progress = $stderr unless options.quiet
end
# define code constructs
def scan
# remove private comment
remaining_code = remove_private_comments(@body)
# continuation lines are united to one line
remaining_code = united_to_one_line(remaining_code)
# semicolons are replaced to line feed
remaining_code = semicolon_to_linefeed(remaining_code)
# collect comment for file entity
whole_comment, remaining_code = collect_first_comment(remaining_code)
@top_level.comment = whole_comment
# String "remaining_code" is converted to Array "remaining_lines"
remaining_lines = remaining_code.split("\n")
# "module" or "program" parts are parsed (new)
#
level_depth = 0
block_searching_flag = nil
block_searching_lines = []
pre_comment = []
module_program_trailing = ""
module_program_name = ""
other_block_level_depth = 0
other_block_searching_flag = nil
remaining_lines.collect!{|line|
if !block_searching_flag && !other_block_searching_flag
if line =~ /^\s*?module\s+(\w+)\s*?(!.*?)?$/i
block_searching_flag = :module
block_searching_lines << line
module_program_name = $1
module_program_trailing = find_comments($2)
next false
elsif line =~ /^\s*?program\s+(\w+)\s*?(!.*?)?$/i ||
line =~ /^\s*?\w/ && !block_start?(line)
block_searching_flag = :program
block_searching_lines << line
module_program_name = $1 || ""
module_program_trailing = find_comments($2)
next false
elsif block_start?(line)
other_block_searching_flag = true
next line
elsif line =~ /^\s*?!\s?(.*)/
pre_comment << line
next line
else
pre_comment = []
next line
end
elsif other_block_searching_flag
other_block_level_depth += 1 if block_start?(line)
other_block_level_depth -= 1 if block_end?(line)
if other_block_level_depth < 0
other_block_level_depth = 0
other_block_searching_flag = nil
end
next line
end
block_searching_lines << line
level_depth += 1 if block_start?(line)
level_depth -= 1 if block_end?(line)
if level_depth >= 0
next false
end
# "module_program_code" is formatted.
# ":nodoc:" flag is checked.
#
module_program_code = block_searching_lines.join("\n")
module_program_code = remove_empty_head_lines(module_program_code)
if module_program_trailing =~ /^:nodoc:/
# next loop to search next block
level_depth = 0
block_searching_flag = false
block_searching_lines = []
pre_comment = []
next false
end
# NormalClass is created, and added to @top_level
#
if block_searching_flag == :module
module_name = module_program_name
module_code = module_program_code
module_trailing = module_program_trailing
progress "m"
@stats.num_modules += 1
f9x_module = @top_level.add_module NormalClass, module_name
f9x_module.record_location @top_level
f9x_comment = COMMENTS_ARE_UPPER ?
find_comments(pre_comment.join("\n")) + "\n" + module_trailing :
module_trailing + "\n" + find_comments(module_code.sub(/^.*$\n/i, ''))
f9x_module.comment = f9x_comment
parse_program_or_module(f9x_module, module_code)
TopLevel.all_files.each do |name, toplevel|
if toplevel.include_includes?(module_name, @options.ignore_case)
if !toplevel.include_requires?(@file_name, @options.ignore_case)
toplevel.add_require(Require.new(@file_name, ""))
end
end
toplevel.each_classmodule{|m|
if m.include_includes?(module_name, @options.ignore_case)
if !m.include_requires?(@file_name, @options.ignore_case)
m.add_require(Require.new(@file_name, ""))
end
end
}
end
elsif block_searching_flag == :program
program_name = module_program_name
program_code = module_program_code
program_trailing = module_program_trailing
progress "p"
program_comment = COMMENTS_ARE_UPPER ?
find_comments(pre_comment.join("\n")) + "\n" + program_trailing :
program_trailing + "\n" + find_comments(program_code.sub(/^.*$\n/i, ''))
program_comment = "\n\n= <i>Program</i> <tt>#{program_name}</tt>\n\n" \
+ program_comment
@top_level.comment << program_comment
parse_program_or_module(@top_level, program_code, :private)
end
# next loop to search next block
level_depth = 0
block_searching_flag = false
block_searching_lines = []
pre_comment = []
next false
}
remaining_lines.delete_if{ |line|
line == false
}
# External subprograms and functions are parsed
#
parse_program_or_module(@top_level, remaining_lines.join("\n"),
:public, true)
@top_level
end # End of scan
private
def parse_program_or_module(container, code,
visibility=:public, external=nil)
return unless container
return unless code
remaining_lines = code.split("\n")
remaining_code = "#{code}"
#
# Parse variables before "contains" in module
#
level_depth = 0
before_contains_lines = []
before_contains_code = nil
before_contains_flag = nil
remaining_lines.each{ |line|
if !before_contains_flag
if line =~ /^\s*?module\s+\w+\s*?(!.*?)?$/i
before_contains_flag = true
end
else
break if line =~ /^\s*?contains\s*?(!.*?)?$/i
level_depth += 1 if block_start?(line)
level_depth -= 1 if block_end?(line)
break if level_depth < 0
before_contains_lines << line
end
}
before_contains_code = before_contains_lines.join("\n")
if before_contains_code
before_contains_code.gsub!(/^\s*?interface\s+.*?\s+end\s+interface.*?$/im, "")
before_contains_code.gsub!(/^\s*?type[\s\,]+.*?\s+end\s+type.*?$/im, "")
end
#
# Parse global "use"
#
use_check_code = "#{before_contains_code}"
cascaded_modules_list = []
while use_check_code =~ /^\s*?use\s+(\w+)(.*?)(!.*?)?$/i
use_check_code = $~.pre_match
use_check_code << $~.post_match
used_mod_name = $1.strip.chomp
used_list = $2 || ""
used_trailing = $3 || ""
next if used_trailing =~ /!:nodoc:/
if !container.include_includes?(used_mod_name, @options.ignore_case)
progress "."
container.add_include Include.new(used_mod_name, "")
end
if ! (used_list =~ /\,\s*?only\s*?:/i )
cascaded_modules_list << "\#" + used_mod_name
end
end
#
# Parse public and private, and store information.
# This information is used when "add_method" and
# "set_visibility_for" are called.
#
visibility_default, visibility_info =
parse_visibility(remaining_lines.join("\n"), visibility, container)
@@public_methods.concat visibility_info
if visibility_default == :public
if !cascaded_modules_list.empty?
cascaded_modules =
Attr.new("Cascaded Modules",
"Imported modules all of whose components are published again",
"",
cascaded_modules_list.join(", "))
container.add_attribute(cascaded_modules)
end
end
#
# Check rename elements
#
use_check_code = "#{before_contains_code}"
while use_check_code =~ /^\s*?use\s+(\w+)\s*?\,(.+)$/i
use_check_code = $~.pre_match
use_check_code << $~.post_match
used_mod_name = $1.strip.chomp
used_elements = $2.sub(/\s*?only\s*?:\s*?/i, '')
used_elements.split(",").each{ |used|
if /\s*?(\w+)\s*?=>\s*?(\w+)\s*?/ =~ used
local = $1
org = $2
@@public_methods.collect!{ |pub_meth|
if local == pub_meth["name"] ||
local.upcase == pub_meth["name"].upcase &&
@options.ignore_case
pub_meth["name"] = org
pub_meth["local_name"] = local
end
pub_meth
}
end
}
end
#
# Parse private "use"
#
use_check_code = remaining_lines.join("\n")
while use_check_code =~ /^\s*?use\s+(\w+)(.*?)(!.*?)?$/i
use_check_code = $~.pre_match
use_check_code << $~.post_match
used_mod_name = $1.strip.chomp
used_trailing = $3 || ""
next if used_trailing =~ /!:nodoc:/
if !container.include_includes?(used_mod_name, @options.ignore_case)
progress "."
container.add_include Include.new(used_mod_name, "")
end
end
container.each_includes{ |inc|
TopLevel.all_files.each do |name, toplevel|
indicated_mod = toplevel.find_symbol(inc.name,
nil, @options.ignore_case)
if indicated_mod
indicated_name = indicated_mod.parent.file_relative_name
if !container.include_requires?(indicated_name, @options.ignore_case)
container.add_require(Require.new(indicated_name, ""))
end
break
end
end
}
#
# Parse derived-types definitions
#
derived_types_comment = ""
remaining_code = remaining_lines.join("\n")
while remaining_code =~ /^\s*?
type[\s\,]+(public|private)?\s*?(::)?\s*?
(\w+)\s*?(!.*?)?$
(.*?)
^\s*?end\s+type.*?$
/imx
remaining_code = $~.pre_match
remaining_code << $~.post_match
typename = $3.chomp.strip
type_elements = $5 || ""
type_code = remove_empty_head_lines($&)
type_trailing = find_comments($4)
next if type_trailing =~ /^:nodoc:/
type_visibility = $1
type_comment = COMMENTS_ARE_UPPER ?
find_comments($~.pre_match) + "\n" + type_trailing :
type_trailing + "\n" + find_comments(type_code.sub(/^.*$\n/i, ''))
type_element_visibility_public = true
type_code.split("\n").each{ |line|
if /^\s*?private\s*?$/ =~ line
type_element_visibility_public = nil
break
end
} if type_code
args_comment = ""
type_args_info = nil
if @options.show_all
args_comment = find_arguments(nil, type_code, true)
else
type_public_args_list = []
type_args_info = definition_info(type_code)
type_args_info.each{ |arg|
arg_is_public = type_element_visibility_public
arg_is_public = true if arg.include_attr?("public")
arg_is_public = nil if arg.include_attr?("private")
type_public_args_list << arg.varname if arg_is_public
}
args_comment = find_arguments(type_public_args_list, type_code)
end
type = AnyMethod.new("type #{typename}", typename)
type.singleton = false
type.params = ""
type.comment = "<b><em> Derived Type </em></b> :: <tt></tt>\n"
type.comment << args_comment if args_comment
type.comment << type_comment if type_comment
progress "t"
@stats.num_methods += 1
container.add_method type
set_visibility(container, typename, visibility_default, @@public_methods)
if type_visibility
type_visibility.gsub!(/\s/,'')
type_visibility.gsub!(/\,/,'')
type_visibility.gsub!(/:/,'')
type_visibility.downcase!
if type_visibility == "public"
container.set_visibility_for([typename], :public)
elsif type_visibility == "private"
container.set_visibility_for([typename], :private)
end
end
check_public_methods(type, container.name)
if @options.show_all
derived_types_comment << ", " unless derived_types_comment.empty?
derived_types_comment << typename
else
if type.visibility == :public
derived_types_comment << ", " unless derived_types_comment.empty?
derived_types_comment << typename
end
end
end
if !derived_types_comment.empty?
derived_types_table =
Attr.new("Derived Types", "Derived_Types", "",
derived_types_comment)
container.add_attribute(derived_types_table)
end
#
# move interface scope
#
interface_code = ""
while remaining_code =~ /^\s*?
interface(
\s+\w+ |
\s+operator\s*?\(.*?\) |
\s+assignment\s*?\(\s*?=\s*?\)
)?\s*?$
(.*?)
^\s*?end\s+interface.*?$
/imx
interface_code << remove_empty_head_lines($&) + "\n"
remaining_code = $~.pre_match
remaining_code << $~.post_match
end
#
# Parse global constants or variables in modules
#
const_var_defs = definition_info(before_contains_code)
const_var_defs.each{|defitem|
next if defitem.nodoc
const_or_var_type = "Variable"
const_or_var_progress = "v"
if defitem.include_attr?("parameter")
const_or_var_type = "Constant"
const_or_var_progress = "c"
end
const_or_var = AnyMethod.new(const_or_var_type, defitem.varname)
const_or_var.singleton = false
const_or_var.params = ""
self_comment = find_arguments([defitem.varname], before_contains_code)
const_or_var.comment = "<b><em>" + const_or_var_type + "</em></b> :: <tt></tt>\n"
const_or_var.comment << self_comment if self_comment
progress const_or_var_progress
@stats.num_methods += 1
container.add_method const_or_var
set_visibility(container, defitem.varname, visibility_default, @@public_methods)
if defitem.include_attr?("public")
container.set_visibility_for([defitem.varname], :public)
elsif defitem.include_attr?("private")
container.set_visibility_for([defitem.varname], :private)
end
check_public_methods(const_or_var, container.name)
} if const_var_defs
remaining_lines = remaining_code.split("\n")
# "subroutine" or "function" parts are parsed (new)
#
level_depth = 0
block_searching_flag = nil
block_searching_lines = []
pre_comment = []
procedure_trailing = ""
procedure_name = ""
procedure_params = ""
procedure_prefix = ""
procedure_result_arg = ""
procedure_type = ""
contains_lines = []
contains_flag = nil
remaining_lines.collect!{|line|
if !block_searching_flag
# subroutine
if line =~ /^\s*?
(recursive|pure|elemental)?\s*?
subroutine\s+(\w+)\s*?(\(.*?\))?\s*?(!.*?)?$
/ix
block_searching_flag = :subroutine
block_searching_lines << line
procedure_name = $2.chomp.strip
procedure_params = $3 || ""
procedure_prefix = $1 || ""
procedure_trailing = $4 || "!"
next false
# function
elsif line =~ /^\s*?
(recursive|pure|elemental)?\s*?
(
character\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| type\s*?\([\w\s]+?\)\s+
| integer\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| real\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| double\s+precision\s+
| logical\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| complex\s*?(\([\w\s\=\(\)\*]+?\))?\s+
)?
function\s+(\w+)\s*?
(\(.*?\))?(\s+result\((.*?)\))?\s*?(!.*?)?$
/ix
block_searching_flag = :function
block_searching_lines << line
procedure_prefix = $1 || ""
procedure_type = $2 ? $2.chomp.strip : nil
procedure_name = $8.chomp.strip
procedure_params = $9 || ""
procedure_result_arg = $11 ? $11.chomp.strip : procedure_name
procedure_trailing = $12 || "!"
next false
elsif line =~ /^\s*?!\s?(.*)/
pre_comment << line
next line
else
pre_comment = []
next line
end
end
contains_flag = true if line =~ /^\s*?contains\s*?(!.*?)?$/
block_searching_lines << line
contains_lines << line if contains_flag
level_depth += 1 if block_start?(line)
level_depth -= 1 if block_end?(line)
if level_depth >= 0
next false
end
# "procedure_code" is formatted.
# ":nodoc:" flag is checked.
#
procedure_code = block_searching_lines.join("\n")
procedure_code = remove_empty_head_lines(procedure_code)
if procedure_trailing =~ /^!:nodoc:/
# next loop to search next block
level_depth = 0
block_searching_flag = nil
block_searching_lines = []
pre_comment = []
procedure_trailing = ""
procedure_name = ""
procedure_params = ""
procedure_prefix = ""
procedure_result_arg = ""
procedure_type = ""
contains_lines = []
contains_flag = nil
next false
end
# AnyMethod is created, and added to container
#
subroutine_function = nil
if block_searching_flag == :subroutine
subroutine_prefix = procedure_prefix
subroutine_name = procedure_name
subroutine_params = procedure_params
subroutine_trailing = procedure_trailing
subroutine_code = procedure_code
subroutine_comment = COMMENTS_ARE_UPPER ?
pre_comment.join("\n") + "\n" + subroutine_trailing :
subroutine_trailing + "\n" + subroutine_code.sub(/^.*$\n/i, '')
subroutine = AnyMethod.new("subroutine", subroutine_name)
parse_subprogram(subroutine, subroutine_params,
subroutine_comment, subroutine_code,
before_contains_code, nil, subroutine_prefix)
progress "s"
@stats.num_methods += 1
container.add_method subroutine
subroutine_function = subroutine
elsif block_searching_flag == :function
function_prefix = procedure_prefix
function_type = procedure_type
function_name = procedure_name
function_params_org = procedure_params
function_result_arg = procedure_result_arg
function_trailing = procedure_trailing
function_code_org = procedure_code
function_comment = COMMENTS_ARE_UPPER ?
pre_comment.join("\n") + "\n" + function_trailing :
function_trailing + "\n " + function_code_org.sub(/^.*$\n/i, '')
function_code = "#{function_code_org}"
if function_type
function_code << "\n" + function_type + " :: " + function_result_arg
end
function_params =
function_params_org.sub(/^\(/, "\(#{function_result_arg}, ")
function = AnyMethod.new("function", function_name)
parse_subprogram(function, function_params,
function_comment, function_code,
before_contains_code, true, function_prefix)
# Specific modification due to function
function.params.sub!(/\(\s*?#{function_result_arg}\s*?,\s*?/, "\( ")
function.params << " result(" + function_result_arg + ")"
function.start_collecting_tokens
function.add_token Token.new(1,1).set_text(function_code_org)
progress "f"
@stats.num_methods += 1
container.add_method function
subroutine_function = function
end
# The visibility of procedure is specified
#
set_visibility(container, procedure_name,
visibility_default, @@public_methods)
# The alias for this procedure from external modules
#
check_external_aliases(procedure_name,
subroutine_function.params,
subroutine_function.comment, subroutine_function) if external
check_public_methods(subroutine_function, container.name)
# contains_lines are parsed as private procedures
if contains_flag
parse_program_or_module(container,
contains_lines.join("\n"), :private)
end
# next loop to search next block
level_depth = 0
block_searching_flag = nil
block_searching_lines = []
pre_comment = []
procedure_trailing = ""
procedure_name = ""
procedure_params = ""
procedure_prefix = ""
procedure_result_arg = ""
contains_lines = []
contains_flag = nil
next false
} # End of remaining_lines.collect!{|line|
# Array remains_lines is converted to String remains_code again
#
remaining_code = remaining_lines.join("\n")
#
# Parse interface
#
interface_scope = false
generic_name = ""
interface_code.split("\n").each{ |line|
if /^\s*?
interface(
\s+\w+|
\s+operator\s*?\(.*?\)|
\s+assignment\s*?\(\s*?=\s*?\)
)?
\s*?(!.*?)?$
/ix =~ line
generic_name = $1 ? $1.strip.chomp : nil
interface_trailing = $2 || "!"
interface_scope = true
interface_scope = false if interface_trailing =~ /!:nodoc:/
# if generic_name =~ /operator\s*?\((.*?)\)/i
# operator_name = $1
# if operator_name && !operator_name.empty?
# generic_name = "#{operator_name}"
# end
# end
# if generic_name =~ /assignment\s*?\((.*?)\)/i
# assignment_name = $1
# if assignment_name && !assignment_name.empty?
# generic_name = "#{assignment_name}"
# end
# end
end
if /^\s*?end\s+interface/i =~ line
interface_scope = false
generic_name = nil
end
# internal alias
if interface_scope && /^\s*?module\s+procedure\s+(.*?)(!.*?)?$/i =~ line
procedures = $1.strip.chomp
procedures_trailing = $2 || "!"
next if procedures_trailing =~ /!:nodoc:/
procedures.split(",").each{ |proc|
proc.strip!
proc.chomp!
next if generic_name == proc || !generic_name
old_meth = container.find_symbol(proc, nil, @options.ignore_case)
next if !old_meth
nolink = old_meth.visibility == :private ? true : nil
nolink = nil if @options.show_all
new_meth =
initialize_external_method(generic_name, proc,
old_meth.params, nil,
old_meth.comment,
old_meth.clone.token_stream[0].text,
true, nolink)
new_meth.singleton = old_meth.singleton
progress "i"
@stats.num_methods += 1
container.add_method new_meth
set_visibility(container, generic_name, visibility_default, @@public_methods)
check_public_methods(new_meth, container.name)
}
end
# external aliases
if interface_scope
# subroutine
proc = nil
params = nil
procedures_trailing = nil
if line =~ /^\s*?
(recursive|pure|elemental)?\s*?
subroutine\s+(\w+)\s*?(\(.*?\))?\s*?(!.*?)?$
/ix
proc = $2.chomp.strip
generic_name = proc unless generic_name
params = $3 || ""
procedures_trailing = $4 || "!"
# function
elsif line =~ /^\s*?
(recursive|pure|elemental)?\s*?
(
character\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| type\s*?\([\w\s]+?\)\s+
| integer\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| real\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| double\s+precision\s+
| logical\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| complex\s*?(\([\w\s\=\(\)\*]+?\))?\s+
)?
function\s+(\w+)\s*?
(\(.*?\))?(\s+result\((.*?)\))?\s*?(!.*?)?$
/ix
proc = $8.chomp.strip
generic_name = proc unless generic_name
params = $9 || ""
procedures_trailing = $12 || "!"
else
next
end
next if procedures_trailing =~ /!:nodoc:/
indicated_method = nil
indicated_file = nil
TopLevel.all_files.each do |name, toplevel|
indicated_method = toplevel.find_local_symbol(proc, @options.ignore_case)
indicated_file = name
break if indicated_method
end
if indicated_method
external_method =
initialize_external_method(generic_name, proc,
indicated_method.params,
indicated_file,
indicated_method.comment)
progress "e"
@stats.num_methods += 1
container.add_method external_method
set_visibility(container, generic_name, visibility_default, @@public_methods)
if !container.include_requires?(indicated_file, @options.ignore_case)
container.add_require(Require.new(indicated_file, ""))
end
check_public_methods(external_method, container.name)
else
@@external_aliases << {
"new_name" => generic_name,
"old_name" => proc,
"file_or_module" => container,
"visibility" => find_visibility(container, generic_name, @@public_methods) || visibility_default
}
end
end
} if interface_code # End of interface_code.split("\n").each ...
#
# Already imported methods are removed from @@public_methods.
# Remainders are assumed to be imported from other modules.
#
@@public_methods.delete_if{ |method| method["entity_is_discovered"]}
@@public_methods.each{ |pub_meth|
next unless pub_meth["file_or_module"].name == container.name
pub_meth["used_modules"].each{ |used_mod|
TopLevel.all_classes_and_modules.each{ |modules|
if modules.name == used_mod ||
modules.name.upcase == used_mod.upcase &&
@options.ignore_case
modules.method_list.each{ |meth|
if meth.name == pub_meth["name"] ||
meth.name.upcase == pub_meth["name"].upcase &&
@options.ignore_case
new_meth = initialize_public_method(meth,
modules.name)
if pub_meth["local_name"]
new_meth.name = pub_meth["local_name"]
end
progress "e"
@stats.num_methods += 1
container.add_method new_meth
end
}
end
}
}
}
container
end # End of parse_program_or_module
#
# Parse arguments, comment, code of subroutine and function.
# Return AnyMethod object.
#
def parse_subprogram(subprogram, params, comment, code,
before_contains=nil, function=nil, prefix=nil)
subprogram.singleton = false
prefix = "" if !prefix
arguments = params.sub(/\(/, "").sub(/\)/, "").split(",") if params
args_comment, params_opt =
find_arguments(arguments, code.sub(/^s*?contains\s*?(!.*?)?$.*/im, ""),
nil, nil, true)
params_opt = "( " + params_opt + " ) " if params_opt
subprogram.params = params_opt || ""
namelist_comment = find_namelists(code, before_contains)
block_comment = find_comments comment
if function
subprogram.comment = "<b><em> Function </em></b> :: <em>#{prefix}</em>\n"
else
subprogram.comment = "<b><em> Subroutine </em></b> :: <em>#{prefix}</em>\n"
end
subprogram.comment << args_comment if args_comment
subprogram.comment << block_comment if block_comment
subprogram.comment << namelist_comment if namelist_comment
# For output source code
subprogram.start_collecting_tokens
subprogram.add_token Token.new(1,1).set_text(code)
subprogram
end
#
# Collect comment for file entity
#
def collect_first_comment(body)
comment = ""
not_comment = ""
comment_start = false
comment_end = false
body.split("\n").each{ |line|
if comment_end
not_comment << line
not_comment << "\n"
elsif /^\s*?!\s?(.*)$/i =~ line
comment_start = true
comment << $1
comment << "\n"
elsif /^\s*?$/i =~ line
comment_end = true if comment_start && COMMENTS_ARE_UPPER
else
comment_end = true
not_comment << line
not_comment << "\n"
end
}
return comment, not_comment
end
# Return comments of definitions of arguments
#
# If "all" argument is true, information of all arguments are returned.
# If "modified_params" is true, list of arguments are decorated,
# for example, optional arguments are parenthetic as "[arg]".
#
def find_arguments(args, text, all=nil, indent=nil, modified_params=nil)
return unless args || all
indent = "" unless indent
args = ["all"] if all
params = "" if modified_params
comma = ""
return unless text
args_rdocforms = "\n"
remaining_lines = "#{text}"
definitions = definition_info(remaining_lines)
args.each{ |arg|
arg.strip!
arg.chomp!
definitions.each { |defitem|
if arg == defitem.varname.strip.chomp || all
args_rdocforms << <<-"EOF"
#{indent}<tt><b>#{defitem.varname.chomp.strip}#{defitem.arraysuffix}</b> #{defitem.inivalue}</tt> ::
#{indent} <tt>#{defitem.types.chomp.strip}</tt>
EOF
if !defitem.comment.chomp.strip.empty?
comment = ""
defitem.comment.split("\n").each{ |line|
comment << " " + line + "\n"
}
args_rdocforms << <<-"EOF"
#{indent} <tt></tt> ::
#{indent} <tt></tt>
#{indent} #{comment.chomp.strip}
EOF
end
if modified_params
if defitem.include_attr?("optional")
params << "#{comma}[#{arg}]"
else
params << "#{comma}#{arg}"
end
comma = ", "
end
end
}
}
if modified_params
return args_rdocforms, params
else
return args_rdocforms
end
end
# Return comments of definitions of namelists
#
def find_namelists(text, before_contains=nil)
return nil if !text
result = ""
lines = "#{text}"
before_contains = "" if !before_contains
while lines =~ /^\s*?namelist\s+\/\s*?(\w+)\s*?\/([\s\w\,]+)$/i
lines = $~.post_match
nml_comment = COMMENTS_ARE_UPPER ?
find_comments($~.pre_match) : find_comments($~.post_match)
nml_name = $1
nml_args = $2.split(",")
result << "\n\n=== NAMELIST <tt><b>" + nml_name + "</tt></b>\n\n"
result << nml_comment + "\n" if nml_comment
if lines.split("\n")[0] =~ /^\//i
lines = "namelist " + lines
end
result << find_arguments(nml_args, "#{text}" + "\n" + before_contains)
end
return result
end
#
# Comments just after module or subprogram, or arguments are
# returned. If "COMMENTS_ARE_UPPER" is true, comments just before
# modules or subprograms are returned
#
def find_comments text
return "" unless text
lines = text.split("\n")
lines.reverse! if COMMENTS_ARE_UPPER
comment_block = Array.new
lines.each do |line|
break if line =~ /^\s*?\w/ || line =~ /^\s*?$/
if COMMENTS_ARE_UPPER
comment_block.unshift line.sub(/^\s*?!\s?/,"")
else
comment_block.push line.sub(/^\s*?!\s?/,"")
end
end
nice_lines = comment_block.join("\n").split "\n\s*?\n"
nice_lines[0] ||= ""
nice_lines.shift
end
def progress(char)
unless @options.quiet
@progress.print(char)
@progress.flush
end
end
#
# Create method for internal alias
#
def initialize_public_method(method, parent)
return if !method || !parent
new_meth = AnyMethod.new("External Alias for module", method.name)
new_meth.singleton = method.singleton
new_meth.params = method.params.clone
new_meth.comment = remove_trailing_alias(method.comment.clone)
new_meth.comment << "\n\n#{EXTERNAL_ALIAS_MES} #{parent.strip.chomp}\##{method.name}"
return new_meth
end
#
# Create method for external alias
#
# If argument "internal" is true, file is ignored.
#
def initialize_external_method(new, old, params, file, comment, token=nil,
internal=nil, nolink=nil)
return nil unless new || old
if internal
external_alias_header = "#{INTERNAL_ALIAS_MES} "
external_alias_text = external_alias_header + old
elsif file
external_alias_header = "#{EXTERNAL_ALIAS_MES} "
external_alias_text = external_alias_header + file + "#" + old
else
return nil
end
external_meth = AnyMethod.new(external_alias_text, new)
external_meth.singleton = false
external_meth.params = params
external_comment = remove_trailing_alias(comment) + "\n\n" if comment
external_meth.comment = external_comment || ""
if nolink && token
external_meth.start_collecting_tokens
external_meth.add_token Token.new(1,1).set_text(token)
else
external_meth.comment << external_alias_text
end
return external_meth
end
#
# Parse visibility
#
def parse_visibility(code, default, container)
result = []
visibility_default = default || :public
used_modules = []
container.includes.each{|i| used_modules << i.name} if container
remaining_code = code.gsub(/^\s*?type[\s\,]+.*?\s+end\s+type.*?$/im, "")
remaining_code.split("\n").each{ |line|
if /^\s*?private\s*?$/ =~ line
visibility_default = :private
break
end
} if remaining_code
remaining_code.split("\n").each{ |line|
if /^\s*?private\s*?(::)?\s+(.*)\s*?(!.*?)?/i =~ line
methods = $2.sub(/!.*$/, '')
methods.split(",").each{ |meth|
meth.sub!(/!.*$/, '')
meth.gsub!(/:/, '')
result << {
"name" => meth.chomp.strip,
"visibility" => :private,
"used_modules" => used_modules.clone,
"file_or_module" => container,
"entity_is_discovered" => nil,
"local_name" => nil
}
}
elsif /^\s*?public\s*?(::)?\s+(.*)\s*?(!.*?)?/i =~ line
methods = $2.sub(/!.*$/, '')
methods.split(",").each{ |meth|
meth.sub!(/!.*$/, '')
meth.gsub!(/:/, '')
result << {
"name" => meth.chomp.strip,
"visibility" => :public,
"used_modules" => used_modules.clone,
"file_or_module" => container,
"entity_is_discovered" => nil,
"local_name" => nil
}
}
end
} if remaining_code
if container
result.each{ |vis_info|
vis_info["parent"] = container.name
}
end
return visibility_default, result
end
#
# Set visibility
#
# "subname" element of "visibility_info" is deleted.
#
def set_visibility(container, subname, visibility_default, visibility_info)
return unless container || subname || visibility_default || visibility_info
not_found = true
visibility_info.collect!{ |info|
if info["name"] == subname ||
@options.ignore_case && info["name"].upcase == subname.upcase
if info["file_or_module"].name == container.name
container.set_visibility_for([subname], info["visibility"])
info["entity_is_discovered"] = true
not_found = false
end
end
info
}
if not_found
return container.set_visibility_for([subname], visibility_default)
else
return container
end
end
#
# Find visibility
#
def find_visibility(container, subname, visibility_info)
return nil if !subname || !visibility_info
visibility_info.each{ |info|
if info["name"] == subname ||
@options.ignore_case && info["name"].upcase == subname.upcase
if info["parent"] == container.name
return info["visibility"]
end
end
}
return nil
end
#
# Check external aliases
#
def check_external_aliases(subname, params, comment, test=nil)
@@external_aliases.each{ |alias_item|
if subname == alias_item["old_name"] ||
subname.upcase == alias_item["old_name"].upcase &&
@options.ignore_case
new_meth = initialize_external_method(alias_item["new_name"],
subname, params, @file_name,
comment)
new_meth.visibility = alias_item["visibility"]
progress "e"
@stats.num_methods += 1
alias_item["file_or_module"].add_method(new_meth)
if !alias_item["file_or_module"].include_requires?(@file_name, @options.ignore_case)
alias_item["file_or_module"].add_require(Require.new(@file_name, ""))
end
end
}
end
#
# Check public_methods
#
def check_public_methods(method, parent)
return if !method || !parent
@@public_methods.each{ |alias_item|
parent_is_used_module = nil
alias_item["used_modules"].each{ |used_module|
if used_module == parent ||
used_module.upcase == parent.upcase &&
@options.ignore_case
parent_is_used_module = true
end
}
next if !parent_is_used_module
if method.name == alias_item["name"] ||
method.name.upcase == alias_item["name"].upcase &&
@options.ignore_case
new_meth = initialize_public_method(method, parent)
if alias_item["local_name"]
new_meth.name = alias_item["local_name"]
end
progress "e"
@stats.num_methods += 1
alias_item["file_or_module"].add_method new_meth
end
}
end
#
# Continuous lines are united.
#
# Comments in continuous lines are removed.
#
def united_to_one_line(f90src)
return "" unless f90src
lines = f90src.split("\n")
previous_continuing = false
now_continuing = false
body = ""
lines.each{ |line|
words = line.split("")
next if words.empty? && previous_continuing
commentout = false
brank_flag = true ; brank_char = ""
squote = false ; dquote = false
ignore = false
words.collect! { |char|
if previous_continuing && brank_flag
now_continuing = true
ignore = true
case char
when "!" ; break
when " " ; brank_char << char ; next ""
when "&"
brank_flag = false
now_continuing = false
next ""
else
brank_flag = false
now_continuing = false
ignore = false
next brank_char + char
end
end
ignore = false
if now_continuing
next ""
elsif !(squote) && !(dquote) && !(commentout)
case char
when "!" ; commentout = true ; next char
when "\""; dquote = true ; next char
when "\'"; squote = true ; next char
when "&" ; now_continuing = true ; next ""
else next char
end
elsif commentout
next char
elsif squote
case char
when "\'"; squote = false ; next char
else next char
end
elsif dquote
case char
when "\""; dquote = false ; next char
else next char
end
end
}
if !ignore && !previous_continuing || !brank_flag
if previous_continuing
body << words.join("")
else
body << "\n" + words.join("")
end
end
previous_continuing = now_continuing ? true : nil
now_continuing = nil
}
return body
end
#
# Continuous line checker
#
def continuous_line?(line)
continuous = false
if /&\s*?(!.*)?$/ =~ line
continuous = true
if comment_out?($~.pre_match)
continuous = false
end
end
return continuous
end
#
# Comment out checker
#
def comment_out?(line)
return nil unless line
commentout = false
squote = false ; dquote = false
line.split("").each { |char|
if !(squote) && !(dquote)
case char
when "!" ; commentout = true ; break
when "\""; dquote = true
when "\'"; squote = true
else next
end
elsif squote
case char
when "\'"; squote = false
else next
end
elsif dquote
case char
when "\""; dquote = false
else next
end
end
}
return commentout
end
#
# Semicolons are replaced to line feed.
#
def semicolon_to_linefeed(text)
return "" unless text
lines = text.split("\n")
lines.collect!{ |line|
words = line.split("")
commentout = false
squote = false ; dquote = false
words.collect! { |char|
if !(squote) && !(dquote) && !(commentout)
case char
when "!" ; commentout = true ; next char
when "\""; dquote = true ; next char
when "\'"; squote = true ; next char
when ";" ; "\n"
else next char
end
elsif commentout
next char
elsif squote
case char
when "\'"; squote = false ; next char
else next char
end
elsif dquote
case char
when "\""; dquote = false ; next char
else next char
end
end
}
words.join("")
}
return lines.join("\n")
end
#
# Which "line" is start of block (module, program, block data,
# subroutine, function) statement ?
#
def block_start?(line)
return nil if !line
if line =~ /^\s*?module\s+(\w+)\s*?(!.*?)?$/i ||
line =~ /^\s*?program\s+(\w+)\s*?(!.*?)?$/i ||
line =~ /^\s*?block\s+data(\s+\w+)?\s*?(!.*?)?$/i ||
line =~ \
/^\s*?
(recursive|pure|elemental)?\s*?
subroutine\s+(\w+)\s*?(\(.*?\))?\s*?(!.*?)?$
/ix ||
line =~ \
/^\s*?
(recursive|pure|elemental)?\s*?
(
character\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| type\s*?\([\w\s]+?\)\s+
| integer\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| real\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| double\s+precision\s+
| logical\s*?(\([\w\s\=\(\)\*]+?\))?\s+
| complex\s*?(\([\w\s\=\(\)\*]+?\))?\s+
)?
function\s+(\w+)\s*?
(\(.*?\))?(\s+result\((.*?)\))?\s*?(!.*?)?$
/ix
return true
end
return nil
end
#
# Which "line" is end of block (module, program, block data,
# subroutine, function) statement ?
#
def block_end?(line)
return nil if !line
if line =~ /^\s*?end\s*?(!.*?)?$/i ||
line =~ /^\s*?end\s+module(\s+\w+)?\s*?(!.*?)?$/i ||
line =~ /^\s*?end\s+program(\s+\w+)?\s*?(!.*?)?$/i ||
line =~ /^\s*?end\s+block\s+data(\s+\w+)?\s*?(!.*?)?$/i ||
line =~ /^\s*?end\s+subroutine(\s+\w+)?\s*?(!.*?)?$/i ||
line =~ /^\s*?end\s+function(\s+\w+)?\s*?(!.*?)?$/i
return true
end
return nil
end
#
# Remove "Alias for" in end of comments
#
def remove_trailing_alias(text)
return "" if !text
lines = text.split("\n").reverse
comment_block = Array.new
checked = false
lines.each do |line|
if !checked
if /^\s?#{INTERNAL_ALIAS_MES}/ =~ line ||
/^\s?#{EXTERNAL_ALIAS_MES}/ =~ line
checked = true
next
end
end
comment_block.unshift line
end
nice_lines = comment_block.join("\n")
nice_lines ||= ""
return nice_lines
end
# Empty lines in header are removed
def remove_empty_head_lines(text)
return "" unless text
lines = text.split("\n")
header = true
lines.delete_if{ |line|
header = false if /\S/ =~ line
header && /^\s*?$/ =~ line
}
lines.join("\n")
end
# header marker "=", "==", ... are removed
def remove_header_marker(text)
return text.gsub(/^\s?(=+)/, '<tt></tt>\1')
end
def remove_private_comments(body)
body.gsub!(/^\s*!--\s*?$.*?^\s*!\+\+\s*?$/m, '')
return body
end
#
# Information of arguments of subroutines and functions in Fortran95
#
class Fortran95Definition
# Name of variable
#
attr_reader :varname
# Types of variable
#
attr_reader :types
# Initial Value
#
attr_reader :inivalue
# Suffix of array
#
attr_reader :arraysuffix
# Comments
#
attr_accessor :comment
# Flag of non documentation
#
attr_accessor :nodoc
def initialize(varname, types, inivalue, arraysuffix, comment,
nodoc=false)
@varname = varname
@types = types
@inivalue = inivalue
@arraysuffix = arraysuffix
@comment = comment
@nodoc = nodoc
end
def to_s
return <<-EOF
<Fortran95Definition:
varname=#{@varname}, types=#{types},
inivalue=#{@inivalue}, arraysuffix=#{@arraysuffix}, nodoc=#{@nodoc},
comment=
#{@comment}
>
EOF
end
#
# If attr is included, true is returned
#
def include_attr?(attr)
return if !attr
@types.split(",").each{ |type|
return true if type.strip.chomp.upcase == attr.strip.chomp.upcase
}
return nil
end
end # End of Fortran95Definition
#
# Parse string argument "text", and Return Array of
# Fortran95Definition object
#
def definition_info(text)
return nil unless text
lines = "#{text}"
defs = Array.new
comment = ""
trailing_comment = ""
under_comment_valid = false
lines.split("\n").each{ |line|
if /^\s*?!\s?(.*)/ =~ line
if COMMENTS_ARE_UPPER
comment << remove_header_marker($1)
comment << "\n"
elsif defs[-1] && under_comment_valid
defs[-1].comment << "\n"
defs[-1].comment << remove_header_marker($1)
end
next
elsif /^\s*?$/ =~ line
comment = ""
under_comment_valid = false
next
end
type = ""
characters = ""
if line =~ /^\s*?
(
character\s*?(\([\w\s\=\(\)\*]+?\))?[\s\,]*
| type\s*?\([\w\s]+?\)[\s\,]*
| integer\s*?(\([\w\s\=\(\)\*]+?\))?[\s\,]*
| real\s*?(\([\w\s\=\(\)\*]+?\))?[\s\,]*
| double\s+precision[\s\,]*
| logical\s*?(\([\w\s\=\(\)\*]+?\))?[\s\,]*
| complex\s*?(\([\w\s\=\(\)\*]+?\))?[\s\,]*
)
(.*?::)?
(.+)$
/ix
characters = $8
type = $1
type << $7.gsub(/::/, '').gsub(/^\s*?\,/, '') if $7
else
under_comment_valid = false
next
end
squote = false ; dquote = false ; bracket = 0
iniflag = false; commentflag = false
varname = "" ; arraysuffix = "" ; inivalue = ""
start_pos = defs.size
characters.split("").each { |char|
if !(squote) && !(dquote) && bracket <= 0 && !(iniflag) && !(commentflag)
case char
when "!" ; commentflag = true
when "(" ; bracket += 1 ; arraysuffix = char
when "\""; dquote = true
when "\'"; squote = true
when "=" ; iniflag = true ; inivalue << char
when ","
defs << Fortran95Definition.new(varname, type, inivalue, arraysuffix, comment)
varname = "" ; arraysuffix = "" ; inivalue = ""
under_comment_valid = true
when " " ; next
else ; varname << char
end
elsif commentflag
comment << remove_header_marker(char)
trailing_comment << remove_header_marker(char)
elsif iniflag
if dquote
case char
when "\"" ; dquote = false ; inivalue << char
else ; inivalue << char
end
elsif squote
case char
when "\'" ; squote = false ; inivalue << char
else ; inivalue << char
end
elsif bracket > 0
case char
when "(" ; bracket += 1 ; inivalue << char
when ")" ; bracket -= 1 ; inivalue << char
else ; inivalue << char
end
else
case char
when ","
defs << Fortran95Definition.new(varname, type, inivalue, arraysuffix, comment)
varname = "" ; arraysuffix = "" ; inivalue = ""
iniflag = false
under_comment_valid = true
when "(" ; bracket += 1 ; inivalue << char
when "\""; dquote = true ; inivalue << char
when "\'"; squote = true ; inivalue << char
when "!" ; commentflag = true
else ; inivalue << char
end
end
elsif !(squote) && !(dquote) && bracket > 0
case char
when "(" ; bracket += 1 ; arraysuffix << char
when ")" ; bracket -= 1 ; arraysuffix << char
else ; arraysuffix << char
end
elsif squote
case char
when "\'"; squote = false ; inivalue << char
else ; inivalue << char
end
elsif dquote
case char
when "\""; dquote = false ; inivalue << char
else ; inivalue << char
end
end
}
defs << Fortran95Definition.new(varname, type, inivalue, arraysuffix, comment)
if trailing_comment =~ /^:nodoc:/
defs[start_pos..-1].collect!{ |defitem|
defitem.nodoc = true
}
end
varname = "" ; arraysuffix = "" ; inivalue = ""
comment = ""
under_comment_valid = true
trailing_comment = ""
}
return defs
end
end # class Fortran95parser
end # module RDoc
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