FIRST BUG
---------
Problem
In a compound word, the word parts of two characters are never
hyphenated.
Example
To reproduce the bug, just go to the directory hyphen-2.8.8 and do the
following :
echo "\
UTF-8
LEFTHYPHENMIN 1
RIGHTHYPHENMIN 1
COMPOUNDLEFTHYPHENMIN 1
COMPOUNDRIGHTHYPHENMIN 1
.post1
NEXTLEVEL
e1
a1
" > hyphen.pat
./example hyphen.pat <(echo postea)
The output is post=ea ; but it should be post=e=a.
If you replace postea with posteaque in the command above, you get
post=e=a=que, which is correct. Indeed, the component "eaque" is now
five characters long, so it is hyphenated.
If you replace postea with ea, you get e=a, which is also correct ;
this is because ea is not a compound word.
Solution
In the file hyphen.c, line 966, "if (i - begin > 1)" must be replaced
with "if (i - begin > 0)".
Indeed, the word part is comprised between begin and i inclusively ;
its length is i - begin + 1. So, if you want to hyphenate the words
parts of length 2 and above, you have to check that i - begin + 1 >= 2,
ie i - begin > 0.
SECOND BUG
----------
Problem
In a compound word, the word parts are never hyphenated between their
second to last and their last character.
Example
To reproduce the bug, do the following :
echo "\
UTF-8
LEFTHYPHENMIN 1
RIGHTHYPHENMIN 1
COMPOUNDLEFTHYPHENMIN 1
COMPOUNDRIGHTHYPHENMIN 1
1que.
NEXTLEVEL
e1
" > hyphen.pat
./example hyphen.pat <(echo meaque)
The output is mea=que ; but it should be me=a=que.
Again, if you replace meaque with mea, you get me=a, which is correct,
because mea is not a compound word.
If you replace meaque with eamque, you get e=am=que, as expected ; it
shows that there is no similar bug with the first and the second
character of word parts.
Solution
In the file hyphen.c, line 983, "for (j = 0; j < i - begin - 1; j++)"
must be replaced with "for (j = 0; j < i - begin; j++)".
Indeed, the word part has length i - begin + 1. So there are i - begin
possible places for a hyphen. Thus j must take i - begin different
values, ie go from 0 to i - begin - 1.
László Németh
Anne-Edgar WILKE
Caolán McNamara
László Németh