and those which contain a hash, buck, percent, asterisk, colon,
semi, eroteme, bracket, backslash, or pipe.
+- **`EXTRAFINDRULES`:**
+ The value of this variable is appended to `FINDRULES` by default, to
+ enable additional rules without overriding the existing ones.
+
- **`FINDINCLUDERULES`:**
Rules to use with `find` when searching for includes (default:
`$(FINDRULES)`).
+- **`EXTRAFINDINCLUDERULES`:**
+ The value of this variable is appended to `FINDINCLUDERULES` by
+ default, to enable additional rules without overriding the existing
+ ones.
+
- **`PARSERS`:**
A white·space‐separated list of parsers to use (default:
`$(THISDIR)/parsers/*.xslt`).
+- **`EXTRAPARSERS`:**
+ The value of this variable is appended to `PARSERS` by default, to
+ enable additional parsers without overriding the existing ones.
+
- **`TRANSFORMS`:**
A white·space‐separated list of transforms to use (default:
`$(THISDIR)/transforms/*.xslt`).
+- **`EXTRATRANSFORMS`:**
+ The value of this variable is appended to `TRANSFORMS` by default, to
+ enable additional transforms without overriding the existing ones.
+
- **`XMLTYPES`:**
A white·space‐separated list of media types to consider X·M·L
(default: `application/xml text/xml`).