extract_name.c
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/* Extract proper-name from a POS tagged text corpus */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
/*................................................................*/
#define TailleLigne 40000
#define True 1
#define False 0
void ERREUR(char *ch1,char *ch2)
{
fprintf(stderr,"ERREUR : %s %s\n",ch1,ch2);
exit(0);
}
/*................................................................*/
#define IF_MAJU(a) ((((a)>='A')&&((a)<='Z'))||((a)=='É')||((a)=='À')\
||((a)=='È') ||((a)=='Ù') ||((a)=='Ê') ||((a)=='Î') ||((a)=='Ô')\
||((a)=='Û') ||((a)=='Ä') ||((a)=='Ë') ||((a)=='Ï') ||((a)=='Ö')\
||((a)=='Ü') ||((a)=='Ç'))
#define NON_ALPHA(a) (((a)<'A')||(((a)>'Z')&&((a)<'a'))||((a)>'z'))
#define IF_PONCTU(a) (((a)==',')||((a)=='.')||((a)==';')||((a)==':')||((a)=='!')||((a)=='?'))
#define IF_SEPAR(a) (((a)=='-')||((a)=='_')||((a)=='&')||((a)=='*')||((a)=='@'))
#define TailleMot 200
#define WindowSize 10
#define ContextSize 4
char T_word[WindowSize][TailleMot];
char T_tagg[WindowSize][TailleMot];
char T_flag[WindowSize];
int sure_name(int i)
{
if ((T_tagg[i][0]=='X')||((!strcmp(T_tagg[i],"MOTINC"))&&(IF_MAJU(T_word[i][0])))) return True;
return False;
}
int find_name(int *indice)
{
int pafini,i;
for(i=ContextSize,pafini=True;(i<WindowSize)&&(pafini);)
{
if (sure_name(i)) pafini=True;
else
if ((i>ContextSize)&&(IF_SEPAR(T_word[i][0]))&&(i<WindowSize-1)&&(sure_name(i+1))) pafini=True;
else
if ((i>ContextSize)&&
((!strcmp(T_word[i],"de"))||
(!strcmp(T_word[i],"y"))||
(!strcmp(T_word[i],"d'")))
&&(i<WindowSize-1)&&(sure_name(i+1)))
pafini=True;
else pafini=False;
if (pafini) i++;
}
*indice=i;
return (i==ContextSize?False:True);
}
void print_name(int j)
{
int i;
for(i=ContextSize;i<j;i++)
{
if (i>ContextSize) printf(" ");
printf("%s",T_word[i]);
T_flag[i]=1;
}
printf("\n");
}
void traite_ligne(char *ch, int if_cntx)
{
static char *lvide=" ";
char *word,*tagg;
int nb,i,j;
if (ch)
{
word=strtok(ch," \t\n");
if (word) tagg=strtok(NULL," \t\n"); else tagg=NULL;
if ((!word)||(!tagg)) { fprintf(stderr,"ERROR: bad format in input file line %d\n",nb+1); exit(0); }
if (strlen(word)>=TailleMot) word[TailleMot-2]='\0';
if (strlen(tagg)>=TailleMot) tagg[TailleMot-2]='\0';
}
else tagg=word=lvide;
for(i=1;i<WindowSize;i++)
{
strcpy(T_word[i-1],T_word[i]);
strcpy(T_tagg[i-1],T_tagg[i]);
T_flag[i-1]=T_flag[i];
}
strcpy(T_word[WindowSize-1],word);
strcpy(T_tagg[WindowSize-1],tagg);
T_flag[WindowSize-1]=0;
if (T_flag[ContextSize]==0)
{
if ((find_name(&j))&&((j>ContextSize+1)||(strlen(T_word[ContextSize])>1)))
{
if (if_cntx)
{
for (i=0;i<ContextSize;i++) { if (i>0) printf(" "); printf("%s",T_word[i]); }
printf(" # "); print_name(j);
for (i=1;i<ContextSize;i++) { if (i>1) printf(" "); printf("%s",T_word[i]); }
printf(" # "); print_name(j);
for (i=2;i<ContextSize;i++) { if (i>2) printf(" "); printf("%s",T_word[i]); }
printf(" # "); print_name(j);
for (i=3;i<ContextSize;i++) { if (i>3) printf(" "); printf("%s",T_word[i]); }
printf(" # "); print_name(j);
}
else print_name(j);
}
}
}
int main(int argc, char **argv)
{
char ch[TailleLigne];
int nb,if_cntx;
if ((argc>1)&&(!strcmp(argv[1],"-cntx"))) if_cntx=True; else if_cntx=False;
for (nb=0;nb<WindowSize;nb++) T_flag[nb]=T_word[nb][0]=T_tagg[nb][0]='\0';
for(nb=0;fgets(ch,TailleLigne,stdin);nb++) traite_ligne(ch,if_cntx);
for(nb=0;nb<WindowSize;nb++) traite_ligne(NULL,if_cntx);
}