indexing
description: "Lexical analyzers"
legal: "See notice at end of class."
status: "See notice at end of class."
date: "$Date: 2006-01-22 18:25:44 -0800 (Sun, 22 Jan 2006) $"
revision: "$Revision: 56675 $"
class interface
LEXICAL
create
make
make_new
feature
make
make_new
feature
buffer: STRING_8
TEXT_FILLER
char_buffered_number: INTEGER_32
TEXT_FILLER
column_nb_array: LEX_ARRAY [INTEGER_32]
`i'
`i'column_nb_array
TEXT_FILLER
end_of_text: BOOLEAN
file_name: STRING_8
TEXT_FILLER
generating_type: STRING_8
ANY
generator: STRING_8
ANY
keyword_code (word: STRING_8): INTEGER_32
`word'
keyword_string (n: INTEGER_32): STRING_8
`n'
ensure
keyword_found: Result /= Void
last_is_keyword: BOOLEAN
ensure
Result = is_keyword (last_string_read)
last_keyword_code: INTEGER_32
last_keyword_text: STRING_8
last_string_read: STRING_8
last_token: TOKEN
line_nb_array: LEX_ARRAY [INTEGER_32]
`i'
`i'line_nb_array
TEXT_FILLER
no_token: INTEGER_32 is 0
other_possible_tokens: ARRAY [INTEGER_32]
token_column_number: INTEGER_32
ensure
Result >= 1
token_line_number: INTEGER_32
ensure
Result >= 1
token_type: INTEGER_32
feature
frozen deep_equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
shallow_implies_deep: standard_equal (some, other) implies Result
both_or_none_void: (some = Void) implies (Result = (other = Void))
same_type: (Result and (some /= Void)) implies some.same_type (other)
symmetric: Result implies deep_equal (other, some)
frozen equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.is_equal (other))
is_equal (other: like Current): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
ensure ANY
symmetric: Result implies other.is_equal (Current)
consistent: standard_is_equal (other) implies Result
frozen standard_equal (some: ANY; other: like arg #1): BOOLEAN
`some'`other'
ANY
ensure ANY
definition: Result = (some = Void and other = Void) or else ((some /= Void and other /= Void) and then some.standard_is_equal (other))
frozen standard_is_equal (other: like Current): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
ensure ANY
same_type: Result implies same_type (other)
symmetric: Result implies other.standard_is_equal (Current)
feature
conforms_to (other: ANY): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
same_type (other: ANY): BOOLEAN
`other'
ANY
require ANY
other_not_void: other /= Void
ensure ANY
definition: Result = (conforms_to (other) and other.conforms_to (Current))
feature
close_file
TEXT_FILLER
ensure TEXT_FILLER
file_is_void: file = Void
create_buffers (buf, lin: INTEGER_32)
TEXT_FILLER
ensure TEXT_FILLER
buffer_size = buf
line_length = lin
exclude (i, j: INTEGER_32)
`i'`j'
`j'
TEXT_FILLER
require TEXT_FILLER
i_positive: i > 0
j_null_or_greater_than_i: j = 0 or j >= i
fill_buffer (b: INTEGER_32)
`b'
TEXT_FILLER
require TEXT_FILLER
buffer_created: buffer /= Void
c_buffer_created: column_nb_array /= Void
l_buffer_created: line_nb_array /= Void
b_not_too_large: b <= buffer_size
b_positive: b >= 0
fill_whole_buffer
TEXT_FILLER
resize_and_fill_buffer (buf, b: INTEGER_32)
buffer_size
buffer_size
`b'
TEXT_FILLER
require TEXT_FILLER
buffer_created: buffer /= Void
c_buffer_created: column_nb_array /= Void
l_buffer_created: line_nb_array /= Void
b_not_too_large: b <= buffer_size
b_positive: b >= 0
ensure TEXT_FILLER
buffer_size = buf
set_file (f_name: STRING_8)
`f_name'
TEXT_FILLER
require TEXT_FILLER
file_name_not_void: f_name /= Void
set_separator_type (type: INTEGER_32)
`type'
ensure
separator_token_type = type
set_string (s: STRING_8)
`s'
TEXT_FILLER
require TEXT_FILLER
string_not_void: s /= Void
feature
copy (other: like Current)
`other'
ANY
require ANY
other_not_void: other /= Void
type_identity: same_type (other)
ensure ANY
is_equal: is_equal (other)
frozen deep_copy (other: like Current)
copy`other'deep_twin
ANY
require ANY
other_not_void: other /= Void
ensure ANY
deep_equal: deep_equal (Current, other)
frozen deep_twin: like Current
ANY
ensure ANY
deep_equal: deep_equal (Current, Result)
frozen standard_copy (other: like Current)
`other'
ANY
require ANY
other_not_void: other /= Void
type_identity: same_type (other)
ensure ANY
is_standard_equal: standard_is_equal (other)
frozen standard_twin: like Current
`other'
ANY
ensure ANY
standard_twin_not_void: Result /= Void
equal: standard_equal (Result, Current)
frozen twin: like Current
`Current'
twincopycopy
ANY
ensure ANY
twin_not_void: Result /= Void
is_equal: Result.is_equal (Current)
feature
frozen default: like Current
ANY
frozen default_pointer: POINTER
`POINTER'
`p'default
`p'`POINTER'
ANY
default_rescue
ANY
frozen do_nothing
ANY
feature
buffer_size: INTEGER_32
TEXT_FILLER
dfa: FIXED_DFA
feature
buffer_item_code (c: INTEGER_32): INTEGER_32
get_any_token
require
dfa_not_void: dfa /= Void
not_end_of_text: not end_of_text
buffers_created: buffer /= Void
get_fixed_token (l: INTEGER_32)
`l'
require
dfa_not_void: dfa /= Void
not_end_of_text: not end_of_text
buffers_created: buffer /= Void
get_short_token
require
dfa_not_void: dfa /= Void
not_end_of_text: not end_of_text
buffers_created: buffer /= Void
get_token
ensure
end_of_text or (token_type /= separator_token_type and token_type /= 0)
feature
io: STD_FILES
ANY
out: STRING_8
ANYtagged_out
ANY
print (some: ANY)
`some'
ANY
frozen tagged_out: STRING_8
ANYout
ANY
trace
feature
operating_environment: OPERATING_ENVIRONMENT
ANY
invariant
ANY
reflexive_equality: standard_is_equal (Current)
reflexive_conformance: conforms_to (Current)
indexing
copyright: "Copyright (c) 1984-2006, Eiffel Software and others"
license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
source: "[
Eiffel Software
356 Storke Road, Goleta, CA 93117 USA
Telephone 805-685-1006, Fax 805-685-6869
Website http://www.eiffel.com
Customer support http://support.eiffel.com
]"
end LEXICAL