coalib.bearlib.languages.documentation._extract_doccomment_standard() - Code Metrics - Inspection of "Makman2/doc format bear7" - coala-analyzer/coala - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Pull Request — master (#1138)

by Mischa

created 2015-12-16 17:16 UTC

coalib.bearlib.languages.documentation._extract_doccomment_standard() C

↳ Parent: Project

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Metric	Value
cc	7
dl	0
loc	30
rs	5.5

import re

from coalib.bearlib.languages.documentation.DocstyleDefinition import (
    DocstyleDefinition)
from coalib.bearlib.languages.documentation.DocumentationComment import (
    DocumentationComment)
from coalib.results.TextPosition import TextPosition
from coalib.results.TextRange import TextRange


def _extract_doccomment_simple(content, line, column, markers):
    align_column = column - len(markers[0])

    pos = content[line].find(markers[2], column)
    if pos == -1:
        doccomment = content[line][column:]
        line += 1

        while line < len(content):
            pos = content[line].find(markers[2])
            if pos == -1:
                doccomment += content[line][align_column:]
            else:
                doccomment += content[line][align_column:pos]
                return line, pos + len(markers[2]), doccomment

            line += 1

        return None
    else:
        return line, pos + len(markers[2]), content[line][column:pos]


def _extract_doccomment_continuous(content, line, column, markers):
    marker_len = len(markers[1])

    doccomment = content[line][column:]
    line += 1
    while line < len(content):
        pos = content[line].find(markers[1])
        if pos == -1:
            return line, 0, doccomment
        else:
            doccomment += content[line][pos+marker_len:]

        line += 1

    if content[line - 1][-1] == "\n":
        column = 0
    else:
        # This case can appear on end-of-document without a `\n`.
        line -= 1
        column = len(content[line])

    return line, column, doccomment


def _extract_doccomment_standard(content, line, column, markers):
    pos = content[line].find(markers[2], column)
    if pos == -1:
        doccomment = content[line][column:]
        line += 1

        while line < len(content):
            pos = content[line].find(markers[2])
            each_line_pos = content[line].find(markers[1])

            if pos == -1:
                if each_line_pos == -1:
                    # If the first text occurrence is not the each-line marker
                    # now we violate the doc-comment layout.
                    return None
                doccomment += content[line][each_line_pos+len(markers[1]):]
            else:
                # If no each-line marker found or it's located past the end
                # marker: extract no further and end the doc-comment.
                if each_line_pos != -1 and each_line_pos + 1 < pos:
                    doccomment += (
                        content[line][each_line_pos+len(markers[1]):pos])

                return line, pos + len(markers[2]), doccomment

            line += 1

        return None
    else:
        return line, pos + len(markers[2]), content[line][column:pos]


def _extract_doccomment(content, line, column, markers):
    if markers[1] == "":
        # Extract and align to start marker.
        return _extract_doccomment_simple(content, line, column, markers)
    elif markers[1] == markers[2]:
        # Search for the each-line marker until it runs out.
        return _extract_doccomment_continuous(content, line, column, markers)
    else:
        return _extract_doccomment_standard(content, line, column, markers)


def _compile_multi_match_regex(strings):
    """
    Compiles a regex object that matches each of the given strings.

    :param strings: The strings to match.
    :return:        A regex object.
    """
    return re.compile("|".join(re.escape(s) for s in strings))


def _extract_doccomment_from_line(content, line, column, regex, marker_dict):
    begin_match = regex.search(content[line], column)
    if begin_match:
        column = begin_match.end()
        for marker in marker_dict[begin_match.group()]:
            doccomment = _extract_doccomment(content, line, column, marker)
            if doccomment is not None:
                start_position = TextPosition(line + 1,
                                              begin_match.start() + 1)
                line, column, doccomment = doccomment

                end_position = TextPosition(line + 1, column + 1)

                doc = DocumentationComment(doccomment,
                                           marker,
                                           TextRange(start_position,
                                                     end_position))

                return line, column, doc

    return line + 1, 0, None


def extract_documentation_with_markers(content, markers):
    """
    Extracts all documentation texts inside the given source-code-string.

    :param content: The source-code-string where to extract documentation from.
                    Needs to be a list or tuple where each string item is a
                    single line (including ending whitespaces like `\\n`).
    :param markers: The list/tuple of marker-sets that identify a
                    documentation-comment. Low-index markers have higher
                    priority than high-index markers.
    :return:        An iterator returning each DocumentationComment found in
                    the content.
    """
    # Prepare marker-tuple dict that maps a begin pattern to the corresponding
    # marker_set(s). This makes it faster to retrieve a marker-set from a
    # begin sequence we initially want to search for in source code. Then
    # the possible found documentation match is processed further with the
    # rest markers.
    marker_dict = {}
    for marker_set in markers:
        if marker_set[0] not in marker_dict:
            marker_dict[marker_set[0]] = [marker_set]
        else:
            marker_dict[marker_set[0]].append(marker_set)

    # Using regexes to perform a variable match is faster than finding each
    # substring with `str.find()` choosing the lowest match.
    begin_regex = _compile_multi_match_regex(
        marker_set[0] for marker_set in markers)

    line = 0
    column = 0
    while line < len(content):
        line, column, doc = _extract_doccomment_from_line(content,
                                                          line,
                                                          column,
                                                          begin_regex,
                                                          marker_dict)
        if doc:
            yield doc


def extract_documentation(content, language, docstyle):
    """
    Extracts all documentation texts inside the given source-code-string using
    the coala docstyle definition files.

    The documentation texts are sorted by their order appearing in `content`.

    For more information about how documentation comments are identified and
    extracted, see DocstyleDefinition.doctypes enumeration.

    :param content:            The source-code-string where to extract
                               documentation from. Needs to be a list or tuple
                               where each string item is a single line
                               (including ending whitespaces like `\\n`).
    :param language:           The programming language used.
    :param docstyle:           The documentation style/tool used
                               (e.g. doxygen).
    :raises FileNotFoundError: Raised when the docstyle definition file was not
                               found. This is a compatability exception from
                               `coalib.misc.Compatability` module.
    :raises KeyError:          Raised when the given language is not defined in
                               given docstyle.
    :raises ValueError:        Raised when a docstyle definition setting has an
                               invalid format.
    :return:                   An iterator returning each DocumentationComment
                               found in the content.
    """
    docstyle_definition = DocstyleDefinition.load(language, docstyle)
    return extract_documentation_with_markers(content,
                                              docstyle_definition.markers)


1			import re
2
3			from coalib.bearlib.languages.documentation.DocstyleDefinition import (
4			DocstyleDefinition)
5			from coalib.bearlib.languages.documentation.DocumentationComment import (
6			DocumentationComment)
7			from coalib.results.TextPosition import TextPosition
8			from coalib.results.TextRange import TextRange
9
10
11			def _extract_doccomment_simple(content, line, column, markers):
12			align_column = column - len(markers[0])
13
14			pos = content[line].find(markers[2], column)
15			if pos == -1:
16			doccomment = content[line][column:]
17			line += 1
18
19			while line < len(content):
20			pos = content[line].find(markers[2])
21			if pos == -1:
22			doccomment += content[line][align_column:]
23			else:
24			doccomment += content[line][align_column:pos]
25			return line, pos + len(markers[2]), doccomment
26
27			line += 1
28
29			return None
30			else:
31			return line, pos + len(markers[2]), content[line][column:pos]
32
33
34			def _extract_doccomment_continuous(content, line, column, markers):
35			marker_len = len(markers[1])
36
37			doccomment = content[line][column:]
38			line += 1
39			while line < len(content):
40			pos = content[line].find(markers[1])
41			if pos == -1:
42			return line, 0, doccomment
43			else:
44			doccomment += content[line][pos+marker_len:]
45
46			line += 1
47
48			if content[line - 1][-1] == "\n":
49			column = 0
50			else:
51			# This case can appear on end-of-document without a `\n`.
52			line -= 1
53			column = len(content[line])
54
55			return line, column, doccomment
56
57
58			def _extract_doccomment_standard(content, line, column, markers):
59			pos = content[line].find(markers[2], column)
60			if pos == -1:
61			doccomment = content[line][column:]
62			line += 1
63
64			while line < len(content):
65			pos = content[line].find(markers[2])
66			each_line_pos = content[line].find(markers[1])
67
68			if pos == -1:
69			if each_line_pos == -1:
70			# If the first text occurrence is not the each-line marker
71			# now we violate the doc-comment layout.
72			return None
73			doccomment += content[line][each_line_pos+len(markers[1]):]
74			else:
75			# If no each-line marker found or it's located past the end
76			# marker: extract no further and end the doc-comment.
77			if each_line_pos != -1 and each_line_pos + 1 < pos:
78			doccomment += (
79			content[line][each_line_pos+len(markers[1]):pos])
80
81			return line, pos + len(markers[2]), doccomment
82
83			line += 1
84
85			return None
86			else:
87			return line, pos + len(markers[2]), content[line][column:pos]
88
89
90			def _extract_doccomment(content, line, column, markers):
91			if markers[1] == "":
92			# Extract and align to start marker.
93			return _extract_doccomment_simple(content, line, column, markers)
94			elif markers[1] == markers[2]:
95			# Search for the each-line marker until it runs out.
96			return _extract_doccomment_continuous(content, line, column, markers)
97			else:
98			return _extract_doccomment_standard(content, line, column, markers)
99
100
101			def _compile_multi_match_regex(strings):
102			"""
103			Compiles a regex object that matches each of the given strings.
104
105			:param strings: The strings to match.
106			:return: A regex object.
107			"""
108			return re.compile("\|".join(re.escape(s) for s in strings))
109
110
111			def _extract_doccomment_from_line(content, line, column, regex, marker_dict):
112			begin_match = regex.search(content[line], column)
113			if begin_match:
114			column = begin_match.end()
115			for marker in marker_dict[begin_match.group()]:
116			doccomment = _extract_doccomment(content, line, column, marker)
117			if doccomment is not None:
118			start_position = TextPosition(line + 1,
119			begin_match.start() + 1)
120			line, column, doccomment = doccomment
			0 ignored issues – show Bug Best Practice introduced 2015-12-16 16:47 UTC by Report Bug Copy Issue Report It seems like you are trying to unpack a non-sequence, which was defined at line 29. Loading history... Bug Best Practice introduced 2015-12-16 16:47 UTC by Report Bug Copy Issue Report It seems like you are trying to unpack a non-sequence, which was defined at line 72. Loading history... Bug Best Practice introduced 2015-12-16 16:47 UTC by Report Bug Copy Issue Report It seems like you are trying to unpack a non-sequence, which was defined at line 85. Loading history...
121			end_position = TextPosition(line + 1, column + 1)
122
123			doc = DocumentationComment(doccomment,
124			marker,
125			TextRange(start_position,
126			end_position))
127
128			return line, column, doc
129
130			return line + 1, 0, None
131
132
133			def extract_documentation_with_markers(content, markers):
134			"""
135			Extracts all documentation texts inside the given source-code-string.
136
137			:param content: The source-code-string where to extract documentation from.
138			Needs to be a list or tuple where each string item is a
139			single line (including ending whitespaces like `\\n`).
140			:param markers: The list/tuple of marker-sets that identify a
141			documentation-comment. Low-index markers have higher
142			priority than high-index markers.
143			:return: An iterator returning each DocumentationComment found in
144			the content.
145			"""
146			# Prepare marker-tuple dict that maps a begin pattern to the corresponding
147			# marker_set(s). This makes it faster to retrieve a marker-set from a
148			# begin sequence we initially want to search for in source code. Then
149			# the possible found documentation match is processed further with the
150			# rest markers.
151			marker_dict = {}
152			for marker_set in markers:
153			if marker_set[0] not in marker_dict:
154			marker_dict[marker_set[0]] = [marker_set]
155			else:
156			marker_dict[marker_set[0]].append(marker_set)
157
158			# Using regexes to perform a variable match is faster than finding each
159			# substring with `str.find()` choosing the lowest match.
160			begin_regex = _compile_multi_match_regex(
161			marker_set[0] for marker_set in markers)
162
163			line = 0
164			column = 0
165			while line < len(content):
166			line, column, doc = _extract_doccomment_from_line(content,
167			line,
168			column,
169			begin_regex,
170			marker_dict)
171			if doc:
172			yield doc
173
174
175			def extract_documentation(content, language, docstyle):
176			"""
177			Extracts all documentation texts inside the given source-code-string using
178			the coala docstyle definition files.
179
180			The documentation texts are sorted by their order appearing in `content`.
181
182			For more information about how documentation comments are identified and
183			extracted, see DocstyleDefinition.doctypes enumeration.
184
185			:param content: The source-code-string where to extract
186			documentation from. Needs to be a list or tuple
187			where each string item is a single line
188			(including ending whitespaces like `\\n`).
189			:param language: The programming language used.
190			:param docstyle: The documentation style/tool used
191			(e.g. doxygen).
192			:raises FileNotFoundError: Raised when the docstyle definition file was not
193			found. This is a compatability exception from
194			`coalib.misc.Compatability` module.
195			:raises KeyError: Raised when the given language is not defined in
196			given docstyle.
197			:raises ValueError: Raised when a docstyle definition setting has an
198			invalid format.
199			:return: An iterator returning each DocumentationComment
200			found in the content.
201			"""
202			docstyle_definition = DocstyleDefinition.load(language, docstyle)
203			return extract_documentation_with_markers(content,
204			docstyle_definition.markers)
205

coala-analyzer / coala

Pull Request — master (#1138)

coalib.bearlib.languages.documentation._extract_doccomment_standard() C

Complexity

Size

Duplication

Duplication Side-by-Side

Filter issues like