Update doc comments and readmes for zcl -> HCL.

ext/README.md

@@ -1,7 +1,7 @@
-# zcl Extensions
+# HCL Extensions
 
-This directory contains some packages implementing some extensions to zcl
+This directory contains some packages implementing some extensions to HCL
-that add features by building on the core API in the main zcl package.
+that add features by building on the core API in the main `hcl` package.
 
 These serve as optional language extensions for use-cases that are limited only
 to specific callers. Generally these make the language more expressive at

ext/include/doc.go

@@ -1,9 +1,9 @@
 // Package include implements a zcl extension that allows inclusion of
-// one zcl body into another using blocks of type "include", with the following
+// one HCL body into another using blocks of type "include", with the following
 // structure:
 //
 //     include {
-//       path = "./foo.zcl"
+//       path = "./foo.hcl"
 //     }
 //
 // The processing of the given path is delegated to the calling application,

ext/userfunc/doc.go

@@ -1,8 +1,8 @@
-// Package userfunc implements a zcl extension that allows user-defined
+// Package userfunc implements a HCL extension that allows user-defined
-// functions in zcl configuration.
+// functions in HCL configuration.
 //
 // Using this extension requires some integration effort on the part of the
-// calling application, to pass any declared functions into a zcl evaluation
+// calling application, to pass any declared functions into a HCL evaluation
 // context after processing.
 //
 // The function declaration syntax looks like this:

gohcl/doc.go

@@ -1,4 +1,4 @@
-// Package gozcl allows decoding zcl configurations into Go data structures.
+// Package gohcl allows decoding HCL configurations into Go data structures.
 //
 // It provides a convenient and concise way of describing the schema for
 // configuration and then accessing the resulting data via native Go

hcl/hclsyntax/doc.go

@@ -1,7 +1,7 @@
-// Package zclsyntax contains the parser, AST, etc for zcl's native language,
+// Package hclsyntax contains the parser, AST, etc for zcl's native language,
-// as opposed to the JSON variant and the HCL/HIL shim.
+// as opposed to the JSON variant.
 //
 // In normal use applications should rarely depend on this package directly,
-// instead preferring the higher-level interface of the main zcl page and
+// instead preferring the higher-level interface of the main hcl package and
-// its companion zclparse.
+// its companion hclparse.
 package hclsyntax

hcl/json/doc.go

@@ -1,8 +1,8 @@
-// Package json is the JSON parser for hcl. It parses JSON files and returns
+// Package json is the JSON parser for HCL. It parses JSON files and returns
-// implementations of the core ZCL structural interfaces in terms of the
+// implementations of the core HCL structural interfaces in terms of the
 // JSON data inside.
 //
 // This is not a generic JSON parser. Instead, it deals with the mapping from
-// the JSON information model to the ZCL information model, using a number
+// the JSON information model to the HCL information model, using a number
 // of hard-coded structural conventions.
 package json

hcldec/doc.go

@@ -1,12 +1,12 @@
-// Package zcldec provides a higher-level API for unpacking the content of
+// Package hcldec provides a higher-level API for unpacking the content of
-// zcl bodies, implemented in terms of the low-level "Content" API exposed
+// HCL bodies, implemented in terms of the low-level "Content" API exposed
 // by the bodies themselves.
 //
 // It allows decoding an entire nested configuration in a single operation
 // by providing a description of the intended structure.
 //
-// For some applications it may be more convenient to use the "gozcl"
+// For some applications it may be more convenient to use the "gohcl"
 // package, which has a similar purpose but decodes directly into native
-// Go data types. zcldec instead targets the cty type system, and thus allows
+// Go data types. hcldec instead targets the cty type system, and thus allows
 // a cty-driven application to remain within that type system.
 package hcldec

hcled/doc.go

@@ -1,4 +1,4 @@
-// Package zcled provides functionality intended to help an application
+// Package hcled provides functionality intended to help an application
-// that embeds zcl to deliver relevant information to a text editor or IDE
+// that embeds HCL to deliver relevant information to a text editor or IDE
 // for navigating around and analyzing configuration files.
 package hcled

hcltest/doc.go

@@ -1,5 +1,5 @@
-// Package zcltest contains utilities that aim to make it more convenient
+// Package hcltest contains utilities that aim to make it more convenient
-// to write tests of code that interacts with the zcl API.
+// to write tests for code that interacts with the HCL API.
 //
 // This package is intended for use only in test code. It is optimized for
 // convenience of use over all other concerns.

hclwrite/doc.go

@@ -1,7 +1,7 @@
-// Package zclwrite deals with the problem of generating zcl configuration
+// Package hclwrite deals with the problem of generating HCL configuration
-// and of making specific surgical changes to existing zcl configurations.
+// and of making specific surgical changes to existing HCL configurations.
 //
-// It operates at a different level of abstraction that the main zcl parser
+// It operates at a different level of abstraction than the main HCL parser
 // and AST, since details such as the placement of comments and newlines
 // are preserved when unchanged.
 package hclwrite