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protokollsystem
proto3
Commits
7fbe71df
Commit
7fbe71df
authored
8 years ago
by
Robin Sonnabend
Browse files
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Plain Diff
Better error messages for some errors in parser
parent
2eb49f03
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No related merge requests found
Changes
1
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Showing
1 changed file
parser.py
+20
-17
20 additions, 17 deletions
parser.py
with
20 additions
and
17 deletions
parser.py
+
20
−
17
View file @
7fbe71df
...
...
@@ -66,9 +66,7 @@ class Element:
if
match
is
None
:
raise
ParserException
(
"
Source does not match!
"
,
linenumber
)
length
=
match
.
group
().
count
(
"
\n
"
)
if
linenumber
is
None
:
return
length
return
linenumber
+
length
return
length
+
(
0
if
linenumber
is
None
else
linenumber
)
@staticmethod
def
parse_outer
(
element
,
current
):
...
...
@@ -88,8 +86,9 @@ class Element:
PATTERN
=
r
"
x(?<!x)
"
# yes, a master piece, but it should never be called
class
Content
(
Element
):
def
__init__
(
self
,
children
):
def
__init__
(
self
,
children
,
linenumber
):
self
.
children
=
children
self
.
linenumber
=
linenumber
def
render
(
self
):
return
""
.
join
(
map
(
lambda
e
:
e
.
render
(),
self
.
children
))
...
...
@@ -127,7 +126,7 @@ class Content(Element):
break
if
not
matched
:
raise
ParserException
(
"
Content does not match inner!
"
,
linenumber
)
return
Content
(
children
)
return
Content
(
children
,
linenumber
)
# v1: has problems with missing semicolons
#PATTERN = r"\s*(?<content>(?:[^\[\];]+)?(?:\[[^\]]+\][^;\[\]]*)*);"
...
...
@@ -135,8 +134,9 @@ class Content(Element):
PATTERN
=
r
"
\s*(?<content>(?:[^\[\];\r\n]+)?(?:\[[^\]\r\n]+\][^;\[\]\r\n]*)*);?
"
class
Text
:
def
__init__
(
self
,
text
):
def
__init__
(
self
,
text
,
linenumber
):
self
.
text
=
text
self
.
linenumber
=
linenumber
def
render
(
self
):
return
self
.
text
...
...
@@ -153,15 +153,16 @@ class Text:
content
=
match
.
group
(
"
text
"
)
if
content
is
None
:
raise
ParserException
(
"
Text is empty!
"
,
linenumber
)
return
Text
(
content
)
return
Text
(
content
,
linenumber
)
PATTERN
=
r
"
(?<text>[^\[]+)(?:(?=\[)|$)
"
class
Tag
:
def
__init__
(
self
,
name
,
values
):
def
__init__
(
self
,
name
,
values
,
linenumber
):
self
.
name
=
name
self
.
values
=
values
self
.
linenumber
=
linenumber
def
render
(
self
):
return
r
"
\textbf{{{}:}} {}
"
.
format
(
self
.
name
,
"
;
"
.
join
(
self
.
values
));
...
...
@@ -179,13 +180,13 @@ class Tag:
if
content
is
None
:
raise
ParserException
(
"
Tag is empty!
"
,
linenumber
)
parts
=
content
.
split
(
"
;
"
)
return
Tag
(
parts
[
0
],
parts
[
1
:])
return
Tag
(
parts
[
0
],
parts
[
1
:]
,
linenumber
)
PATTERN
=
r
"
\[(?<content>(?:[^;\]]*;)*(?:[^;\]]*))\]
"
class
Empty
(
Element
):
def
__init__
(
self
):
pass
def
__init__
(
self
,
linenumber
):
linenumber
=
linenumber
def
render
(
self
):
return
""
...
...
@@ -203,9 +204,10 @@ class Empty(Element):
PATTERN
=
r
"
\s+
"
class
Remark
(
Element
):
def
__init__
(
self
,
name
,
value
):
def
__init__
(
self
,
name
,
value
,
linenumber
):
self
.
name
=
name
self
.
value
=
value
self
.
linenumber
=
linenumber
def
render
(
self
):
return
r
"
\textbf{{{}}}: {}
"
.
format
(
self
.
name
,
self
.
value
)
...
...
@@ -225,17 +227,18 @@ class Remark(Element):
if
len
(
parts
)
<
2
:
raise
ParserException
(
"
Remark value is empty!
"
,
linenumber
)
name
,
value
=
parts
element
=
Remark
(
name
,
value
)
element
=
Remark
(
name
,
value
,
linenumber
)
current
=
Element
.
parse_outer
(
element
,
current
)
return
current
,
linenumber
PATTERN
=
r
"
\s*\#(?<content>[^\n]+)
"
class
Fork
(
Element
):
def
__init__
(
self
,
environment
,
name
,
parent
,
children
=
None
):
def
__init__
(
self
,
environment
,
name
,
parent
,
linenumber
,
children
=
None
):
self
.
environment
=
environment
if
environment
is
None
or
len
(
environment
)
>
0
else
None
self
.
name
=
name
if
name
is
None
or
len
(
name
)
>
0
else
None
self
.
parent
=
parent
self
.
linenumber
=
linenumber
self
.
children
=
[]
if
children
is
None
else
children
def
dump
(
self
,
level
=
None
):
...
...
@@ -259,7 +262,7 @@ class Fork(Element):
@staticmethod
def
create_root
():
return
Fork
(
None
,
None
,
None
)
return
Fork
(
None
,
None
,
None
,
0
)
@staticmethod
def
parse
(
match
,
current
,
linenumber
=
None
):
...
...
@@ -272,7 +275,7 @@ class Fork(Element):
name
=
name1
if
name2
is
not
None
:
name
+=
"
{}
"
.
format
(
name2
)
element
=
Fork
(
environment
,
name
,
current
)
element
=
Fork
(
environment
,
name
,
current
,
linenumber
)
current
=
Element
.
parse_outer
(
element
,
current
)
return
current
,
linenumber
...
...
@@ -319,7 +322,7 @@ def parse(source):
if
not
found
:
raise
ParserException
(
"
No matching syntax element found!
"
,
linenumber
)
if
current
is
not
tree
:
raise
ParserException
(
"
Source ended within fork!
"
)
raise
ParserException
(
"
Source ended within fork!
(started at line {})
"
.
format
(
current
.
linenumber
)
)
return
tree
def
main
(
test_file_name
=
None
):
...
...
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