Initial WebM release

examples/gen_example_code.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+##
+##  Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
+##
+##  Use of this source code is governed by a BSD-style license and patent
+##  grant that can be found in the LICENSE file in the root of the source
+##  tree. All contributing project authors may be found in the AUTHORS
+##  file in the root of the source tree.
+##
+
+
+# gen_example_code.sh
+
+self=$0
+
+die_usage() {
+    echo "Usage: $self <example.txt>"
+    exit 1
+}
+
+die() {
+    echo "$@"
+    exit 1
+}
+
+include_block() {
+    show_bar=$1
+    block_name=${line##*@}
+    indent=${line%%${block_name}}
+    indent=${#indent}
+    [ $indent -eq 1 ] && indent=0
+    local on_block
+    while IFS=$'\n' read -r t_line; do
+        case "$t_line" in
+            \~*\ ${block_name})
+                if [ "x$on_block" == "xyes" ]; then
+                    return 0;
+                else
+                    on_block=yes
+                fi
+                ;;
+            @DEFAULT)
+                if [ "x$on_block" == "xyes" ]; then
+                    include_block $show_bar < "${template%.c}.txt"
+                    return 0
+                fi
+                ;;
+            *)
+                if [ "x$on_block" == "xyes" ]; then
+                    local rem
+                    (( rem = 78 - indent ))
+                    case "$block_name" in
+                      \**) printf "%${indent}s * %s\n" "" "$t_line" ;;
+                        *)
+                            if [ "$show_bar" == "yes" ]; then
+                                printf "%${indent}s%-${rem}s//\n" "" "$t_line"
+                            else
+                                printf "%${indent}s%s\n" "" "$t_line"
+                            fi
+                            ;;
+                    esac
+                fi
+        esac
+    done
+    return 1
+}
+
+txt=$1
+[ -f "$txt" ] || die_usage
+read -r template < "$txt"
+case "$template" in
+    @TEMPLATE*) template=${txt%/*}/${template##@TEMPLATE } ;;
+    *) die "Failed to parse template name from '$template'" ;;
+esac
+
+while IFS=$'\n' read -r line; do
+    case "$line" in
+        @*) include_block yes < "$txt" \
+            || include_block < "${template%.c}.txt" \
+            #|| echo "WARNING: failed to find text for block $block_name" >&2
+            ;;
+        *)  echo "$line" ;;
+    esac
+done < "$template"