X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?a=blobdiff_plain;f=pctb%2Focr.c;h=ef0364c9ba93b5b0d1b91b00e20f8378ae428b59;hb=05fdda2d8afd55210846c4d84f534cfaed282aaa;hp=f6104452dc1c1854e6ccd19aac77882caae0aba9;hpb=ac65228e40fa375c829b46607fb4941ff11376e9;p=ypp-sc-tools.web-live.git

diff --git a/pctb/ocr.c b/pctb/ocr.c
index f610445..ef0364c 100644
--- a/pctb/ocr.c
+++ b/pctb/ocr.c
@@ -53,11 +53,11 @@ typedef struct {
   int rx;
 } FindCharResults;
 
-enum { ct_Lower, ct_Upper, ct_Word, ct_Digit };
+enum { ct_Word, ct_Upper, ct_Lower, ct_Digit };
 static const char *context_names[]= {
-  "Lower",  /*  bit 0, value 001 */
+  "Word",   /*  bit 0, value 001 */
   "Upper",  /*  bit 1, value 002 */
-  "Word",   /*  bit 2, value 004 */
+  "Lower",  /*  bit 2, value 004 */
   "Digit",  /*  bit 3, value 010 */
 };
 struct OcrCellTypeInfo {
@@ -223,7 +223,7 @@ static void callout_unknown(OcrReader *rd, int w, Pixcol cols[],
   Pixcol pv;
 
   FILE *resolver= resolve_start();
-  if (!resolver)
+  if (!resolver || !(o_flags & ff_editcharset))
     fatal("OCR failed - unrecognised characters or ligatures.\n"
 	  "Character set database needs to be updated or augmented.\n"
 	  "See README.charset.\n");
@@ -235,7 +235,7 @@ static void callout_unknown(OcrReader *rd, int w, Pixcol cols[],
   for (i=0, s=rd->results; i<rd->nresults; i++, s++) {
     if (!strcmp(s->s," ")) continue;
     fprintf(resolver," %d %d ",s->l,s->r);
-    cu_pr_ctxmap(resolver,s->ctxmap);
+    cu_pr_ctxmap(resolver, 1u << s->ctxi);
     fprintf(resolver," ");
     for (p=s->s; (c= *p); p++) {
       if (c=='\\') fprintf(resolver,"\\%c",c);
@@ -265,8 +265,7 @@ static void callout_unknown(OcrReader *rd, int w, Pixcol cols[],
   readdb(rd);
 }
 
-static void add_result(OcrReader *rd, const char *s, int l, int r,
-		       unsigned ctxmap) {
+static void add_result(OcrReader *rd, const char *s, int l, int r, int ctxi) {
   if (rd->nresults >= rd->aresults) {
     rd->aresults++; rd->aresults<<=1;
     rd->results= mrealloc(rd->results, sizeof(*rd->results)*rd->aresults);
@@ -274,7 +273,7 @@ static void add_result(OcrReader *rd, const char *s, int l, int r,
   rd->results[rd->nresults].s= s;
   rd->results[rd->nresults].l= l;
   rd->results[rd->nresults].r= r;
-  rd->results[rd->nresults].ctxmap= ctxmap;
+  rd->results[rd->nresults].ctxi= ctxi;
   rd->nresults++;
 }
 
@@ -314,7 +313,8 @@ static DatabaseNode *findchar_1ctx(const FindCharArgs *fca,
   return bestmatch;
 }  
 
-static DatabaseNode *findchar(const FindCharArgs *fca, int *match_rx) {
+static DatabaseNode *findchar(const FindCharArgs *fca,
+			      int *match_rx, int *match_rctxi) {
   FindCharResults results[NCONTEXTS];
   int ctxi, match=-1, nmatches=0;
 
@@ -342,8 +342,9 @@ static DatabaseNode *findchar(const FindCharArgs *fca, int *match_rx) {
   if (match<0)
     return 0;
   
-  *match_rx= results[ctxi].rx;
-  return results[ctxi].match;
+  *match_rx= results[match].rx;
+  if (match_rctxi) *match_rctxi= match;
+  return results[match].match;
 }
 
 static int findchar_select_text(const FindCharArgs *fca,
@@ -415,17 +416,18 @@ OcrResultGlyph *ocr(OcrReader *rd, OcrCellType ct, int w, Pixcol cols[]) {
 
     /* something here, so we need to add the spaces */
     if (nspaces >= ct->space_spaces)
-      add_result(rd," ",x-nspaces,x+1,0);
+      add_result(rd," ",x-nspaces,x+1,-1);
     nspaces=0;
 
     fca.x= x;
 
     int match_rx=-1;
-    DatabaseNode *match= findchar(&fca, &match_rx);
+    int match_ctxi=-1;
+    DatabaseNode *match= findchar(&fca, &match_rx, &match_ctxi);
     
     if (match) {
       debugf(" || YES");
-      add_result(rd, match->str, x, match_rx, fca.ctxmap);
+      add_result(rd, match->str, x, match_rx, match_ctxi);
       x= match_rx+1;
       if (match->match) fca.ctxmap= ct->midword;
       else debugf(" (empty)");
@@ -446,7 +448,7 @@ OcrResultGlyph *ocr(OcrReader *rd, OcrCellType ct, int w, Pixcol cols[]) {
     }
 
   }
-  add_result(rd, 0,-1,-1,0);
+  add_result(rd, 0,-1,-1,-1);
   debugf("OCR  finished %d glyphs\n",rd->nresults);
   debug_flush();
   return rd->results;