def test_plain(self):
page = self.pdf.pages[0]
cropped = page.crop((0, 80, self.PDF_WIDTH, 485))
table = cropped.extract_table({
"horizontal_strategy":
"text",
"explicit_vertical_lines":
[min(map(itemgetter("x0"), cropped.chars))],
"intersection_tolerance":
5,
})
def parse_value(k, x):
if k == 0:
return x
if x in (None, ""):
return None
return int(x.replace(",", ""))
def parse_row(row):
return dict(
(COLUMNS[i], parse_value(i, v)) for i, v in enumerate(row))
parsed_table = [parse_row(row) for row in table]
# [1:] because first column is state name
for c in COLUMNS[1:]:
total = parsed_table[-1][c]
colsum = sum(row[c] or 0 for row in parsed_table)
assert colsum == (total * 2)
month_chars = within_bbox(page.chars, (0, 35, self.PDF_WIDTH, 65))
month_text = extract_text(month_chars)
assert month_text == "November - 2015"
def extract_text(self,
x_tolerance=utils.DEFAULT_X_TOLERANCE,
y_tolerance=utils.DEFAULT_Y_TOLERANCE):
return utils.extract_text(self.chars,
x_tolerance=x_tolerance,
y_tolerance=y_tolerance)
def test_extract_text_layout(self):
target = open(
os.path.join(HERE, "comparisons/scotus-transcript-p1.txt")).read()
page = self.pdf_scotus.pages[0]
text = page.extract_text(layout=True)
utils_text = utils.extract_text(page.chars, layout=True)
assert text == utils_text
assert text == target
def extract(self,
x_tolerance=utils.DEFAULT_X_TOLERANCE,
y_tolerance=utils.DEFAULT_Y_TOLERANCE):
chars = self.page.chars
table_arr = []
def char_in_bbox(char, bbox):
v_mid = (char["top"] + char["bottom"]) / 2
h_mid = (char["x0"] + char["x1"]) / 2
x0, top, x1, bottom = bbox
return ((h_mid >= x0) and (h_mid < x1) and (v_mid >= top)
and (v_mid < bottom))
for row in self.rows:
arr = []
row_chars = [
char for char in chars if char_in_bbox(char, row.bbox)
]
for cell in row.cells:
if cell == None:
cell_text = None
else:
cell_chars = [
char for char in row_chars if char_in_bbox(char, cell)
]
if len(cell_chars):
self.used_chars += cell_chars
cell_text = utils.extract_text(
cell_chars,
x_tolerance=x_tolerance,
y_tolerance=y_tolerance).strip()
else:
cell_text = ""
arr.append(cell_text)
table_arr.append(arr)
return table_arr
def parse_page(page):
month_chars = [ c for c in page.chars if c["non_stroking_color"] == (1, 0, 0) ]
month_text = extract_text(month_chars, x_tolerance=2)
month = parse_month(month_text)
sys.stderr.write("\r" + month)
table_crop = page.crop((
0,
[ w for w in page.extract_words() if w["text"] == "State" ][0]["bottom"],
page.width,
page.rects[-1]["bottom"],
))
edge_xs = list(set(map(itemgetter("x0"), table_crop.edges)))
leftmost_char = min(map(itemgetter("x0"), table_crop.chars))
_table = table_crop.extract_table({
"horizontal_strategy": "text",
"vertical_strategy": "explicit",
"explicit_vertical_lines": [ leftmost_char ] + edge_xs,
"intersection_tolerance": 5,
"text_y_tolerance": 0,
"text_x_tolerance": 2,
})
table = pd.DataFrame([ [ month ] + row for row in _table ])
table.columns = COLUMNS
table[table.columns[2:]] = table[table.columns[2:]].applymap(parse_value)
table.loc[(table["state"] == "llinois"), "state"] = "Illinois"
table = table.loc[lambda df: df["state"].fillna("").str.strip() != ""]
try: validate_data(table)
except: raise Exception("Invalid data for " + month)
return table
def extract_text(self, x_tolerance=0, y_tolerance=0):
return utils.extract_text(self.chars,
x_tolerance=x_tolerance,
y_tolerance=y_tolerance)
def extract_text(self, x_tolerance=0, y_tolerance=0):
return utils.extract_text(self.chars,
x_tolerance=x_tolerance,
y_tolerance=y_tolerance)
