Kozea/WeasyPrint
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Cairo use hex string when there are parenthesis for TAG_LINK but not for TAG_DEST so an id is not represented by the same string in the pdf and pdf reader can make the link between them. Using urllib.parse.quote replaces special chars and so Cairo stop using hex string and pdf reader are happy.

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This commit is contained in:
Lucie Anglade 2020-09-13 18:42:56 +02:00
parent 37445dbf5b
commit 30bf467ce8
1 changed files with 7 additions and 2 deletions
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9
weasyprint/document.py
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@ -10,6 +10,7 @@ import io
import math
import shutil
import warnings
from urllib.parse import quote
import cairocffi as cairo
@ -575,9 +576,11 @@ class Document:
[int(round(i * scale)) for i in rectangle] +
[link_target.replace("'", '%27')]))
elif link_type == 'internal':
# Use urllib.parse.quote to make link ids the same with
# TAG_DEST and TAG_LINK with Cairo
attributes = "rect=[{} {} {} {}] dest='{}'".format(*(
[int(round(i * scale)) for i in rectangle] +
[link_target.replace("'", '%27')]))
[quote(link_target)]))
elif link_type == 'attachment':
# Attachments are handled in write_pdf_metadata
continue
@ -586,8 +589,10 @@ class Document:
for anchor in anchors:
anchor_name, x, y = anchor
# Use urllib.parse.quote to make link ids the same with TAG_DEST
# and TAG_LINK with Cairo
attributes = "name='{}' x={} y={}".format(
anchor_name.replace("'", '%27'), int(round(x * scale)),
quote(anchor_name), int(round(x * scale)),
int(round(y * scale)))
context.tag_begin(cairo.TAG_DEST, attributes)
context.tag_end(cairo.TAG_DEST)