128 lines
2.9 KiB
C++
128 lines
2.9 KiB
C++
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#include <cstdlib>
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#include <cstring>
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#include <cctype>
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#include <cstdio>
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#include "dictmgr.hxx"
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#if !defined(_MSC_VER)
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using namespace std;
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#endif
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// some utility functions
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extern void mychomp(char * s);
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extern char * mystrdup(const char * s);
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extern char * mystrsep(char ** stringp, const char delim);
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DictMgr::DictMgr(const char * dictpath, const char * etype)
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{
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// load list of etype entries
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numdict = 0;
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pdentry = (dictentry *)malloc(MAXDICTIONARIES*sizeof(struct dictentry));
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if (pdentry) {
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if (parse_file(dictpath, etype)) {
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numdict = 0;
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// no dictionary.lst found is okay
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}
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} else {
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numdict = 0;
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}
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}
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DictMgr::~DictMgr()
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{
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dictentry * pdict = NULL;
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if (pdentry) {
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pdict = pdentry;
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for (int i=0;i<numdict;i++) {
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if (pdict->lang) {
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free(pdict->lang);
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pdict->lang = NULL;
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}
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if (pdict->region) {
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free(pdict->region);
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pdict->region=NULL;
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}
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if (pdict->filename) {
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free(pdict->filename);
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pdict->filename = NULL;
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}
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pdict++;
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}
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free(pdentry);
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pdentry = NULL;
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pdict = NULL;
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}
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numdict = 0;
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}
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// read in list of etype entries and build up structure to describe them
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int DictMgr::parse_file(const char * dictpath, const char * etype)
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{
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int i;
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char line[MAXDICTENTRYLEN+1];
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dictentry * pdict = pdentry;
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// open the dictionary list file
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FILE * dictlst;
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dictlst = fopen(dictpath,"r");
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if (!dictlst) {
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return 1;
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}
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// step one is to parse the dictionary list building up the
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// descriptive structures
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// read in each line ignoring any that dont start with etype
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while (fgets(line,MAXDICTENTRYLEN,dictlst)) {
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mychomp(line);
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/* parse in a dictionary entry */
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if (strncmp(line,etype,4) == 0) {
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if (numdict < MAXDICTIONARIES) {
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char * tp = line;
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char * piece;
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i = 0;
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while ((piece=mystrsep(&tp,' '))) {
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if (*piece != '\0') {
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switch(i) {
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case 0: break;
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case 1: pdict->lang = mystrdup(piece); break;
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case 2: if (strcmp (piece, "ANY") == 0)
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pdict->region = mystrdup("");
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else
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pdict->region = mystrdup(piece);
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break;
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case 3: pdict->filename = mystrdup(piece); break;
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default: break;
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}
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i++;
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}
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free(piece);
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}
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if (i == 4) {
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numdict++;
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pdict++;
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} else {
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fprintf(stderr,"dictionary list corruption in line \"%s\"\n",line);
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fflush(stderr);
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}
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}
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}
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}
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fclose(dictlst);
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return 0;
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}
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// return text encoding of dictionary
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int DictMgr::get_list(dictentry ** ppentry)
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{
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*ppentry = pdentry;
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return numdict;
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}
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