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Merge pull request #20 from ecraven/master

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Add support for .syn synonym files.
This commit is contained in:
Evgeniy Dushistov
2017-07-06 23:57:19 +03:00
committed by GitHub
parent 72a15b70a7 aa42132243
commit f510300f59
9 changed files with 121 additions and 1 deletions
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59
src/stardict_lib.cpp
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@@ -172,6 +172,14 @@ bool DictInfo::load_from_ifo_file(const std::string& ifofilename,
sametypesequence.assign(p2, p3-p2);
}
p2 = strstr(p1,"\nsynwordcount=");
syn_wordcount = 0;
if (p2) {
p2+=sizeof("\nsynwordcount=")-1;
p3 = strchr(p2, '\n');
syn_wordcount = atol(std::string(p2, p3-p2).c_str());
}
return true;
}
@@ -803,6 +811,51 @@ namespace {
}
}
bool SynFile::load(const std::string& url, gulong wc) {
struct stat stat_buf;
if(!stat(url.c_str(), &stat_buf)) {
MapFile syn;
if(!syn.open(url.c_str(), stat_buf.st_size))
return false;
const gchar *current = syn.begin();
for(unsigned long i = 0; i < wc; i++) {
// each entry in a syn-file is:
// - 0-terminated string
// 4-byte index into .dict file in network byte order
gchar *lower_string = g_utf8_casefold(current, -1);
std::string synonym(lower_string);
g_free(lower_string);
current += synonym.length()+1;
unsigned int idx = * reinterpret_cast<const unsigned int*>(current);
idx = g_ntohl(idx);
current += sizeof(idx);
synonyms[synonym] = idx;
}
return true;
} else {
return false;
}
}
bool SynFile::lookup(const char *str, glong &idx) {
gchar *lower_string = g_utf8_casefold(str, -1);
auto it = synonyms.find(lower_string);
if(it != synonyms.end()) {
g_free(lower_string);
idx = it->second;
return true;
}
g_free(lower_string);
return false;
}
bool Dict::Lookup(const char *str, glong &idx) {
if(syn_file->lookup(str, idx)) {
return true;
}
return idx_file->lookup(str, idx);
}
bool Dict::load(const std::string& ifofilename)
{
gulong idxfilesize;
@@ -840,6 +893,11 @@ bool Dict::load(const std::string& ifofilename)
if (!idx_file->load(fullfilename, wordcount, idxfilesize))
return false;
fullfilename=ifofilename;
fullfilename.replace(fullfilename.length()-sizeof("ifo")+1, sizeof("ifo")-1, "syn");
syn_file.reset(new SynFile);
syn_file->load(fullfilename, syn_wordcount);
//g_print("bookname: %s , wordcount %lu\n", bookname.c_str(), narticles());
return true;
}
@@ -854,6 +912,7 @@ bool Dict::load_ifofile(const std::string& ifofilename, gulong &idxfilesize)
ifo_file_name=dict_info.ifo_file_name;
wordcount=dict_info.wordcount;
syn_wordcount=dict_info.syn_wordcount;
bookname=dict_info.bookname;
idxfilesize=dict_info.index_file_size;