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Make cfi_cmp re-useable

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Kovid Goyal 2020-06-29 09:36:29 +05:30
parent 94ee4035e2
commit b6cbf67e4c
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1 changed files with 17 additions and 6 deletions
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23
src/pyj/read_book/cfi.pyj
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@ -442,12 +442,17 @@ def cfi_sort_key(cfi): # {{{
return ans return ans
def sort_cfis(array_of_cfis): def create_cfi_cmp(key_map):
key_map = {cfi: cfi_sort_key(cfi) for cfi in array_of_cfis} if not key_map:
key_map = {}
Array.prototype.sort.call(array_of_cfis, def(a, b): def cfi_cmp(a_cfi, b_cfi):
a = key_map[a] a = key_map[a_cfi]
b = key_map[b] if not a:
a = key_map[a_cfi] = cfi_sort_key(a_cfi)
b = key_map[b_cfi]
if not b:
b = key_map[b_cfi] = cfi_sort_key(b_cfi)
for i in range(min(a.steps.length, b.steps.length)): for i in range(min(a.steps.length, b.steps.length)):
diff = a.steps[i] - b.steps[i] diff = a.steps[i] - b.steps[i]
if diff is not 0: if diff is not 0:
@ -468,8 +473,14 @@ def sort_cfis(array_of_cfis):
return a.text_offset - b.text_offset return a.text_offset - b.text_offset
return 0 return 0
)
return cfi_cmp
def sort_cfis(array_of_cfis):
key_map = {cfi: cfi_sort_key(cfi) for cfi in array_of_cfis}
Array.prototype.sort.call(array_of_cfis, create_cfi_cmp(key_map))
# }}} # }}}
def at(x, y, doc): # {{{ def at(x, y, doc): # {{{