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Diffstat (limited to 'src/htmlexts.c')
-rw-r--r-- | src/htmlexts.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/htmlexts.c b/src/htmlexts.c new file mode 100644 index 0000000..9496972 --- /dev/null +++ b/src/htmlexts.c @@ -0,0 +1,110 @@ +/* +** The extra routines for the HTML widget for Tcl/Tk +** +** Copyright (C) 1997-2000 Peter MacDonald and BrowseX Systems Inc. +** +** This library is free software; you can redistribute it and/or +** modify it under the terms of the GNU Library General Public +** License as published by the Free Software Foundation; either +** version 2 of the License, or (at your option) any later version. +** +** This library is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +** Library General Public License for more details. +** +** You should have received a copy of the GNU Library General Public +** License along with this library; if not, write to the +** Free Software Foundation, Inc., 59 Temple Place - Suite 330, +** Boston, MA 02111-1307, USA. +** +** Author contact information: +** peter@browsex.com +** http://browsex.com +*/ + +#include <tk.h> +#include <string.h> +#include <stdlib.h> +#include "htmlexts.h" + +void HtmlTclizeAscii(Tcl_Interp *interp, HtmlIndex *s, HtmlIndex *e); + +/* +** WIDGET text ascii START END +*/ +int HtmlTextAsciiCmd( + HtmlWidget *htmlPtr, /* The HTML widget */ + Tcl_Interp *interp, /* The interpreter */ + int argc, /* Number of arguments */ + const char **argv /* List of all arguments */ +){ + HtmlIndex iStart, iEnd; + char *cb, *ce; + if (argc<=3) cb="begin"; else cb=(char*)argv[3]; + if (argc<=4) ce=cb; else ce=(char*)argv[4]; + + if( HtmlGetIndex(htmlPtr, cb, &iStart.p, &iStart.i)!=0 ){ + Tcl_AppendResult(interp,"malformed index: \"", cb, "\"", 0); + return TCL_ERROR; + } + if( HtmlGetIndex(htmlPtr, ce, &iEnd.p, &iEnd.i)!=0 ){ + Tcl_AppendResult(interp,"malformed index: \"", ce, "\"", 0); + return TCL_ERROR; + } + if (iEnd.p && iStart.p) { + if ((!iEnd.i) && (!strchr(ce,'.'))) { + iEnd.p=iEnd.p->pNext; + } + HtmlTclizeAscii(interp,&iStart,&iEnd); + } + return TCL_OK; +} + +/* +** Return all tokens between the two elements as a Text. +*/ +void HtmlTclizeAscii(Tcl_Interp *interp, HtmlIndex *s, HtmlIndex *e){ + int j, nsub=0; + HtmlElement* p=s->p; + Tcl_DString str; + if (p && p->base.type==Html_Text) { + nsub=s->i; + } + Tcl_DStringInit(&str); + while( p) { + switch( p->base.type ){ + case Html_Block: + break; + case Html_Text: + j=strlen(p->text.zText); + if (j<nsub) nsub=j; + if (p==e->p) { + j= (e->i-nsub+1); + } + Tcl_DStringAppend(&str, p->text.zText+nsub,j-nsub); + nsub=0; + break; + case Html_Space: + for (j=0; j< p->base.count; j++) { + if (nsub-->0) continue; + Tcl_DStringAppend(&str, " ", 1); + } + if ((p->base.flags & HTML_NewLine)!=0) + Tcl_DStringAppend(&str, "\n",1); + nsub=0; + break; + case Html_P: + case Html_BR: + Tcl_DStringAppend(&str, "\n",1); + break; + case Html_Unknown: + break; + default: + break; + } + if (p==e->p) break; + p = p->pNext; + } + Tcl_DStringResult(interp, &str); +} |