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Rev | Author | Line No. | Line |
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10 | reyssat | 1 | /* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis |
2 | * |
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3 | * This program is free software; you can redistribute it and/or modify |
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4 | * it under the terms of the GNU General Public License as published by |
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5 | * the Free Software Foundation; either version 2 of the License, or |
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6 | * (at your option) any later version. |
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7 | * |
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8 | * This program is distributed in the hope that it will be useful, |
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9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | * GNU General Public License for more details. |
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12 | * |
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13 | * You should have received a copy of the GNU General Public License |
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14 | * along with this program; if not, write to the Free Software |
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15 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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16 | */ |
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17 | |||
7676 | bpr | 18 | /* Versatile translation according to a dictionary */ |
10 | reyssat | 19 | |
20 | /*************** Customization: change values hereafter ****************/ |
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21 | |||
7676 | bpr | 22 | /* limit of dictionary entries */ |
10 | reyssat | 23 | #define entrylim 32768 |
7676 | bpr | 24 | /* limit of dictionary length */ |
25 | #define diclim 2*1024*1024 |
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26 | /* limit of source length */ |
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10 | reyssat | 27 | #define sourcelim 16*1024*1024 |
28 | |||
29 | /***************** Nothing should need change hereafter *****************/ |
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8185 | bpr | 30 | #include "../Lib/libwims.h" |
8123 | bpr | 31 | #include "suffix.h" |
10 | reyssat | 32 | |
33 | char *inpbuf, outbuf[2*(MAX_LINELEN+1)]; |
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34 | char *dicbuf; |
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35 | struct entry { |
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13318 | obado | 36 | unsigned char *original, *replace; |
37 | int olen,earlier; |
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10 | reyssat | 38 | } entry[entrylim]; |
39 | int entrycount; |
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40 | |||
41 | enum { |
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13318 | obado | 42 | unk_delete, unk_leave, unk_replace |
10 | reyssat | 43 | }; |
44 | |||
45 | int has_digits=0; |
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46 | int unknown_type=unk_delete; |
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47 | int nocase=0,leaveline=0,fromfile=0; |
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48 | char *unknown, unkbuf[1024]; |
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49 | |||
7676 | bpr | 50 | /* Exit without translating anything */ |
10 | reyssat | 51 | void escape(void) |
52 | { |
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12248 | bpr | 53 | printf("%s",inpbuf); exit(0); |
10 | reyssat | 54 | } |
55 | |||
56 | int compare(int i1, const char *s2) |
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57 | { |
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12248 | bpr | 58 | int k; |
59 | if(nocase) k=strncasecmp((char*)entry[i1].original,s2,entry[i1].olen); |
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60 | else k=strncmp((char*)entry[i1].original,s2,entry[i1].olen); |
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61 | if(k==0 && (isalnum(*(s2+entry[i1].olen)) || (*(s2+entry[i1].olen)&128)!=0)) return -1; |
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62 | else return k; |
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10 | reyssat | 63 | } |
64 | |||
7676 | bpr | 65 | /* searches a list. Returns index if found, -1 if nomatch. |
8149 | bpr | 66 | * Uses binary search, list must be sorted. |
67 | */ |
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8100 | bpr | 68 | int search_list2(struct entry *list, int items, size_t item_size, const char *str) |
10 | reyssat | 69 | { |
12248 | bpr | 70 | int i1,i2,j,k,t,t1; |
71 | unsigned char c; |
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10 | reyssat | 72 | |
12248 | bpr | 73 | if(items<=0) return -1; |
74 | j=0; c=str[0]; |
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75 | k=list[0].original[0]-c; if(k==0) k=compare(0,str); |
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76 | if(k==0) goto more; |
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77 | if(k>0) return -1; |
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78 | j=items-1; k=list[j].original[0]-c; if(k==0) k=compare(j,str); |
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79 | if(k==0) return j; |
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80 | if(k>0) for(i1=0,i2=j;i2>i1+1;) { |
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81 | j=i1+(i2-i1)/2; |
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82 | k=list[j].original[0]-c; if(k==0) k=compare(j,str); |
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11124 | georgesk | 83 | if(k==0) goto more; |
12248 | bpr | 84 | if(k>0) {i2=j; continue;} |
85 | if(k<0) {i1=j; continue;} |
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86 | } |
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87 | if(k>0) {j--;k=compare(j,str);} |
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88 | more: |
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89 | if((t=list[j].earlier)<0) { |
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90 | if(k==0) return j; else return -1; |
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91 | } |
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92 | if(compare(t,str)!=0) return -1; |
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93 | for(j=t1=t,k=0;j<items && list[j].earlier==t1 && (k=compare(j,str))<=0; j++) { |
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94 | if(k==0) t=j; |
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95 | } |
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96 | return t; |
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10 | reyssat | 97 | } |
98 | |||
7676 | bpr | 99 | /* change all spaces into ' ', and collapse multiple occurences */ |
8100 | bpr | 100 | void singlespace2(char *p) |
10 | reyssat | 101 | { |
12248 | bpr | 102 | char *pp, *p2; |
103 | for(pp=p;*pp;pp++) { |
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104 | if(!isspace(*pp)) continue; |
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105 | if(leaveline) { |
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106 | if(*pp==13) ovlstrcpy(pp,pp+1); |
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107 | if(*pp=='\n') { |
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108 | pp++; |
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109 | gopt: for(p2=pp; isspace(*p2) && *p2!='\n'; p2++); |
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110 | if(p2>pp) ovlstrcpy(pp,p2); |
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111 | pp--; |
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7676 | bpr | 112 | } |
113 | else { |
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12248 | bpr | 114 | pp++; if(!isspace(*pp) || *pp=='\n') continue; |
115 | goto gopt; |
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7676 | bpr | 116 | } |
10 | reyssat | 117 | } |
12248 | bpr | 118 | else { |
119 | if(*pp!=' ') *pp=' '; |
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120 | pp++; if(!isspace(*pp)) continue; |
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121 | for(p2=pp;isspace(*p2);p2++); |
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122 | ovlstrcpy(pp,p2); pp--; |
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123 | } |
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124 | } |
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10 | reyssat | 125 | } |
126 | |||
7676 | bpr | 127 | /* Prepare dictionary */ |
8898 | bpr | 128 | static void prepare_dict(void) |
10 | reyssat | 129 | { |
12248 | bpr | 130 | int i,l; |
131 | FILE *dicf; |
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132 | char *fname, *p1, *p2, *pp, buf[1024]; |
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133 | long int flen; |
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134 | fname=getenv("w_dictionary"); |
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135 | if(fname==NULL || *fname==0 || *fname=='/' || strstr(fname,"..")) { |
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136 | p1=getenv("w_module"); |
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137 | if(p1 && strncmp(p1,"classes/",strlen("classes/"))==0) { |
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138 | p1=getenv("w_wims_class"); p2=getenv("w_wims_home"); |
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139 | if(p1 && p2) { |
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140 | snprintf(buf,sizeof(buf),"%s/log/classes/%s/",p2,p1); |
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141 | if(strncmp(fname,buf,strlen(buf))!=0) escape(); |
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7676 | bpr | 142 | } |
12248 | bpr | 143 | else escape(); |
10 | reyssat | 144 | } |
12248 | bpr | 145 | else { |
13318 | obado | 146 | p1=getenv("untrust"); if(p1 && strstr(p1,"yes")) escape(); |
12248 | bpr | 147 | } |
148 | } |
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6876 | bpr | 149 | /* replace escape() by return if there is some suffix dictionary, */ |
150 | |||
12248 | bpr | 151 | dicf=fopen(fname,"r"); if(dicf==NULL) return; |
152 | fseek(dicf,0,SEEK_END);flen=ftell(dicf); fseek(dicf,0,SEEK_SET); |
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153 | if(flen>diclim) escape(); |
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154 | dicbuf=xmalloc(flen+16);flen=fread(dicbuf,1,flen,dicf); |
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155 | fclose(dicf); |
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156 | if(flen>0 && flen<diclim) dicbuf[flen]=0; |
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157 | else escape(); |
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158 | for(i=0,p1=dicbuf;p1!=NULL && *p1!=0 && i<entrylim;p1=p2) { |
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159 | p2=strchr(p1+1,'\n'); if(p2>p1) *p2++=0; |
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160 | pp=strchr(p1,':'); if(pp==NULL) continue; |
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161 | *pp++=0; |
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162 | strip_trailing_spaces2(p1); strip_trailing_spaces2(pp); |
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163 | singlespace2(p1); |
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164 | p1=find_word_start(p1); pp=find_word_start(pp); |
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165 | if(*p1==0) continue; |
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166 | if(has_digits==0) { |
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167 | char *p; |
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168 | for(p=p1;*p!=0 && p<pp && !isdigit(*p);p++); |
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169 | if(isdigit(*p)) has_digits=1; |
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10 | reyssat | 170 | } |
12248 | bpr | 171 | entry[i].original=(unsigned char*)p1; |
172 | entry[i].replace=(unsigned char*)pp; |
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173 | entry[i].olen=l=strlen(p1); entry[i].earlier=-1; |
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174 | if(i>0) { |
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175 | int l1,l2; |
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176 | l1=entry[i-1].earlier; if(l1>=0) l2=entry[l1].olen; |
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177 | else {l2=entry[i-1].olen;l1=i-1;} |
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178 | if(l>l2 && isspace(p1[l2]) |
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179 | && strncmp((char*)entry[l1].original,p1,l2)==0) |
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180 | entry[i].earlier=entry[i-1].earlier=l1; |
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181 | } |
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182 | i++; |
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183 | } |
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184 | entrycount=i; if(entrycount<=0) escape(); |
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10 | reyssat | 185 | } |
186 | |||
7676 | bpr | 187 | /* now make the translation. */ |
10 | reyssat | 188 | void translate(void) |
189 | { |
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12248 | bpr | 190 | char *p1, *p2, *pp; |
191 | int t; |
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10 | reyssat | 192 | |
12248 | bpr | 193 | for(p1=find_word_start(outbuf); |
7676 | bpr | 194 | p1!=NULL && p1-outbuf<MAX_LINELEN && *p1!=0; |
195 | p1=p2) { |
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12248 | bpr | 196 | p2=find_word_end(p1); |
197 | for(pp=p1;pp<p2 && |
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198 | ((!has_digits && isalpha(*pp)) || |
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199 | (has_digits && isalnum(*pp)) || (*pp&128)!=0 || |
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200 | strchr("_",*pp)!=NULL);pp++); |
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201 | p2=find_word_start(p2); |
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202 | if(pp==p1 || |
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203 | (has_digits==0 && isdigit(*pp)) || |
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204 | (*pp!=0 && !isspace(*pp) && strchr(",.?!/;",*pp)==NULL)) continue; |
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205 | t=search_list2(entry,entrycount,sizeof(entry[0]),p1); |
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206 | if(t<0) { |
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207 | switch(unknown_type) { |
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208 | case unk_leave: break; |
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209 | case unk_delete: { |
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210 | ovlstrcpy(p1,find_word_start(pp)); p2=p1; |
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211 | break; |
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212 | } |
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213 | case unk_replace: { |
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214 | string_modify3(outbuf,p1,pp,unkbuf); |
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215 | p2=find_word_start(p1+strlen(unkbuf)); |
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7676 | bpr | 216 | } |
10 | reyssat | 217 | } |
12248 | bpr | 218 | continue; |
219 | } |
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220 | string_modify3(outbuf,p1,p1+strlen((char*)entry[t].original), |
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221 | (char*)entry[t].replace); |
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222 | p2=find_word_start(p1+strlen((char*)entry[t].replace)); |
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223 | } |
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224 | outbuf[MAX_LINELEN]=0; printf("%s",outbuf); |
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10 | reyssat | 225 | } |
226 | |||
227 | void switches(void) |
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228 | { |
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12248 | bpr | 229 | char *sw; |
230 | unknown=getenv("w_translator_unknown"); |
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231 | if(unknown==NULL) unknown=""; |
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232 | snprintf(unkbuf,sizeof(unkbuf),"%s",find_word_start(unknown)); |
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233 | *find_word_end(unkbuf)=0; |
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234 | if(strcasecmp(unkbuf,"leave")==0) unknown_type=unk_leave; |
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235 | else if(unkbuf[0]!=0) unknown_type=unk_replace; |
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236 | sw=getenv("w_translator_switch"); |
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237 | if(sw==NULL) return; |
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238 | if(strstr(sw,"leaveline")) leaveline=1; |
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239 | if(strstr(sw,"nocase")) nocase=1; |
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240 | if(strstr(sw,"file")) fromfile=1; |
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10 | reyssat | 241 | } |
242 | |||
243 | int main() |
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244 | { |
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12248 | bpr | 245 | char c, *p1, *p2, *s; |
246 | unsigned int l; |
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10 | reyssat | 247 | |
12248 | bpr | 248 | switches(); |
249 | if(!fromfile) { |
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250 | s=getenv("wims_exec_parm"); |
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251 | if(s==NULL || *s==0) return 0; /* Nothing to translate */ |
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252 | l=strlen(s); if(l<=0 || l>sourcelim) return 0; /* too long */ |
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253 | inpbuf=xmalloc(l+16); memmove(inpbuf,s,l+1); |
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254 | } |
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255 | else { |
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256 | FILE *f; |
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257 | s=getenv("translator_input"); if(s==NULL || *s==0) return 0; |
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258 | f=fopen(s,"r"); if(f==NULL) return 0; /* no file */ |
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259 | fseek(f,0,SEEK_END); l=ftell(f); fseek(f,0,SEEK_SET); |
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260 | if(l<=0 || l>sourcelim) return 0; /* too long */ |
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261 | inpbuf=xmalloc(l+16); (void)fread(inpbuf,1,l,f); fclose(f); inpbuf[l]=0; |
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262 | } |
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263 | p1=inpbuf; prepare_dict(); |
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264 | if(leaveline) c='\n'; else c=' '; |
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265 | do { |
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266 | l=strlen(p1); |
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267 | if(l>MAX_LINELEN-1024) l=MAX_LINELEN-1024; |
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268 | p2=p1+l; |
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269 | if(*p2) { |
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270 | while(p2>p1 && *p2!=c) p2--; |
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10 | reyssat | 271 | } |
12248 | bpr | 272 | if(p2<=p1) return 0; |
273 | memmove(outbuf,p1,p2-p1); outbuf[p2-p1]=0; |
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274 | singlespace2(outbuf); |
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275 | s=getenv("w_suffix_dictionary"); |
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276 | if(s!=NULL && *s!=0) suffix(outbuf,s); |
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277 | translate(); |
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278 | if(*p2==c) {printf("%c",c); p1=++p2;} |
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279 | } |
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280 | while(*p2); |
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281 | return 0; |
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10 | reyssat | 282 | } |