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[STR New]
Link: http://www.fltk.org/str.php?L2494
Version: 1.3-feature
This patch adds simple macro capability to the extra code lines in fluid:
[email protected]_data = @name;
If an extra code line starts with "=" then the "=" will be removed and any
occurrence of "@name" will be replaced by the widget name entered and every
occurrence of "@class" will be replaced by the classname (default or user
entered).
Supposing the above line on an "Fl_Input" with a name of "age" will be
converted to:
db_vat_rates.Fl_Input.user_data = age;
Link: http://www.fltk.org/str.php?L2494
Version: 1.3-feature
Index: Fl_Widget_Type.cxx
===================================================================
--- Fl_Widget_Type.cxx (revision 8095)
+++ Fl_Widget_Type.cxx (working copy)
@@ -2365,10 +2365,69 @@
}
}
+char * replace(
+ char const * const original,
+ char const * const pattern,
+ char const * const replacement
+) {
+ size_t const replen = strlen(replacement);
+ size_t const patlen = strlen(pattern);
+ size_t const orilen = strlen(original);
+
+ size_t patcnt = 0;
+ const char * oriptr;
+ const char * patloc;
+
+ // find how many times the pattern occurs in the original string
+ for (oriptr = original; (patloc = strstr(oriptr, pattern)); oriptr = patloc
+ patlen)
+ {
+ patcnt++;
+ }
+
+ {
+ // allocate memory for the new string
+ size_t const retlen = orilen + patcnt * (replen - patlen);
+ char * const returned = (char *) malloc( sizeof(char) * (retlen + 1) );
+
+ if (returned != NULL)
+ {
+ // copy the original string,
+ // replacing all the instances of the pattern
+ char * retptr = returned;
+ for (oriptr = original; (patloc = strstr(oriptr, pattern)); oriptr =
patloc + patlen)
+ {
+ size_t const skplen = patloc - oriptr;
+ // copy the section until the occurence of the pattern
+ strncpy(retptr, oriptr, skplen);
+ retptr += skplen;
+ // copy the replacement
+ strncpy(retptr, replacement, replen);
+ retptr += replen;
+ }
+ // copy the rest of the string.
+ strcpy(retptr, oriptr);
+ }
+ return returned;
+ }
+}
+
void Fl_Widget_Type::write_extra_code() {
- for (int n=0; n < NUM_EXTRA_CODE; n++)
- if (extra_code(n) && !isdeclare(extra_code(n)))
- write_c("%s%s\n", indent(), extra_code(n));
+ for (int n=0; n < NUM_EXTRA_CODE; n++){
+ char *pc, *ec = (char*)extra_code(n);
+ if (ec && !isdeclare(ec)){
+ if(ec[0] == '='){ //do macro substitutions
+ pc = ++ec; //skip "="
+ const char *nm = name();
+ const char *nk = subclassname(this);
+ if(nm) ec = replace(ec, "@name", nm);
+ if(nk) pc = replace(ec, "@class", nk);
+ write_c("%s%s\n", indent(), pc);
+ if(nm) free(ec);
+ if(nk) free(pc);
+ }
+ else write_c("%s%s\n", indent(), ec);
+ }
+ }
}
void Fl_Widget_Type::write_block_close() {
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